US20130303625A1 - Agent for the prevention, improvement or treatment of retinal disease - Google Patents

Agent for the prevention, improvement or treatment of retinal disease Download PDF

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US20130303625A1
US20130303625A1 US13/775,605 US201313775605A US2013303625A1 US 20130303625 A1 US20130303625 A1 US 20130303625A1 US 201313775605 A US201313775605 A US 201313775605A US 2013303625 A1 US2013303625 A1 US 2013303625A1
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gga
weight
geranylgeranylacetone
agent
retinal
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Takahiro Kurose
Takayuki Miyano
Mariyo Kato
Yoshihiro Takai
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Rohto Pharmaceutical Co Ltd
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Rohto Pharmaceutical Co Ltd
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Priority to US13/775,605 priority Critical patent/US20130303625A1/en
Assigned to ROHTO PHARMACEUTICAL CO., LTD. reassignment ROHTO PHARMACEUTICAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAKAI, YOSHIHIRO, KATO, MARIYO, KUROSE, TAKAHIRO, MIYANO, TAKAYUKI
Publication of US20130303625A1 publication Critical patent/US20130303625A1/en
Priority to US14/154,688 priority patent/US9724312B2/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/12—Ketones
    • A61K31/121—Ketones acyclic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/02—Inorganic compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/44—Oils, fats or waxes according to two or more groups of A61K47/02-A61K47/42; Natural or modified natural oils, fats or waxes, e.g. castor oil, polyethoxylated castor oil, montan wax, lignite, shellac, rosin, beeswax or lanolin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0048—Eye, e.g. artificial tears
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/0012—Galenical forms characterised by the site of application
    • A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P27/00—Drugs for disorders of the senses
    • A61P27/02—Ophthalmic agents
    • A61P27/06—Antiglaucoma agents or miotics

Definitions

  • the present invention relates to a prophylactic, ameliorating or therapeutic agent for a retinal disease.
  • Teprenone (Eisai Co., Ltd.) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone at a weight ratio of 3:2. Teprenone is widely used as an oral therapeutic agent for gastric ulcer.
  • Patent Literature 1 teaches the use of teprenone as an active ingredient of a prophylactic or therapeutic agent for dry eye, eye strain, or eye dryness.
  • Patent Literature 2 discloses a clear eye drop consisting of teprenone, a phospholipid, a synthetic surfactant, and water.
  • Geranylgeranylacetone with an unknown cis-trans isomer ratio (Eisai Co., Ltd.) is also known to be useful as an active ingredient of a therapeutic agent for a retinal disease.
  • Patent Literature 3 teaches a method for ameliorating an ocular disease such as diabetic retinopathy and glaucoma in a patient, the method comprising administering geranylgeranylacetone to the patient to increase the expression or activity of a heat shock protein in an ocular tissue, and recruiting a stem cell to the ocular tissue, thereby ameliorating the ocular disease.
  • an ocular disease such as diabetic retinopathy and glaucoma
  • the method comprising administering geranylgeranylacetone to the patient to increase the expression or activity of a heat shock protein in an ocular tissue, and recruiting a stem cell to the ocular tissue, thereby ameliorating the ocular disease.
  • Non Patent Literature 1 teaches that intraperitoneal administration of geranylgeranylacetone to a retinal detachment-induced animal induced the expression of heat shock protein 70 and subsequently reduced the apoptosis of visual cells significantly.
  • Non Patent Literature 2 teaches that intraperitoneal administration of geranylgeranylacetone to a glaucoma rat model induced the expression of heat shock protein 72 and subsequently reduced retinal ganglion cell death and thereby ameliorated optic nerve damage.
  • Non Patent Literature 3 teaches that oral administration of geranylgeranylacetone to a mouse with visual cell damage induced by light irradiation induced thioredoxin and heat shock protein 72 in the retinal pigment epithelium.
  • the literature also teaches that the release of thioredoxin from the retinal pigment epithelium plays a crucial role in maintaining visual cells and that geranylgeranylacetone is useful for the protection of visual cells against light damage.
  • Non Patent Literature 4 teaches that oral administration of geranylgeranylacetone to a mouse with retinal injury induced by ischemia significantly increased the number of surviving retinal neurons and that geranylgeranylacetone is useful for the treatment of retinal degenerative diseases that involve ischemic injury.
  • Non Patent Literature 5 teaches that oral administration of geranylgeranylacetone to a multiple sclerosis mouse model improved the visual function, reduced the number of degenerating axons in the optic nerve, and prevented cell loss in the ganglion.
  • Teprenone marketed by Eisai Co., Ltd. is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone at a weight ratio of 3:2 (WO 2004/047822, JP-9-169639 A, JP Pat. No. 4621326, JP-2006-89393 A, the Japanese pharmacopoeia, 16th edition, and the package insert of Selbex).
  • geranylgeranylacetone described in Patent Literature 3 and Non Patent Literature 1 to 5 is also a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone at a weight ratio of 3:2.
  • Teprenone marketed by companies other than Eisai Co., Ltd. are also mixtures of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone at a weight ratio of 3:2 (for example, see MSDS (Cat. No. 202-15733; Wako Pure Chemical Industries, Ltd.).
  • teprenone which is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone at a weight ratio of 3:2, lacks a practically sufficient ameliorating effect for a retinal disease.
  • An object of the present invention is to provide a prophylactic, ameliorating or therapeutic agent having a practically sufficient effect for a retinal disease.
  • the inventors conducted extensive research in order to solve the above problem and found the following unexpected findings.
  • Geranylgeranylacetone has a protective action for a retinal cell and is very effective in the prevention, amelioration and treatment of a retinal disease.
  • the effect is high when (5E,9E,13E)-geranylgeranylacetone (hereinafter sometimes referred to as “all-trans form”) or (5Z,9E,13E)-geranylgeranylacetone (hereinafter sometimes referred to as “5Z-mono-cis form”) is used, whereas the effect is low when a mixture thereof is used.
  • the all-trans form has a far superior protective effect for a retinal cell to teprenone, which is a mixture of the all-trans form and the 5Z-mono-cis form at a weight ratio of 3:2.
  • the all-trans form content of a mixture of the all-trans form and the 5Z-mono-cis form is 80% by weight or more, the protective effect for a retinal cell is significantly high.
  • the 5Z-mono-cis form content of a mixture of the all-trans form and the 5Z-mono-cis form is very high, the protective effect for a retinal cell is also significantly high.
  • the present invention has been completed based on the above findings and provides a prophylactic, ameliorating or therapeutic agent for a retinal disease, as described below.
  • a prophylactic, ameliorating or therapeutic agent for a retinal disease comprising geranylgeranylacetone
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone.
  • retinal disease is a disease selected from the group consisting of glaucoma, retinitis pigmentosa, age-related macular degeneration and diabetic retinopathy.
  • a protective agent for a retinal cell comprising as an active ingredient geranylgeranylacetone
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone.
  • a suppressing agent for the degeneration, impairment or destruction of a retinal cell comprising as an active ingredient geranylgeranylacetone
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone.
  • composition for use in the prevention, amelioration or treatment of a retinal disease comprising geranylgeranylacetone which
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone.
  • a method for preventing, ameliorating or treating a retinal disease comprising the step of administering to a patient with a retinal disease an effective amount of geranylgeranylacetone which
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more, or (b) consists of (5E,9E,13E)-geranylgeranylacetone, thereby preventing, ameliorating or treating the retinal disease.
  • composition for use in the protection of a retinal cell comprising geranylgeranylacetone
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone.
  • a method for protecting a retinal cell comprising the step of administering to a patient with a retinal disease an effective amount of geranylgeranylacetone which
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone, thereby protecting a retinal cell.
  • composition for use in the suppression of the degeneration, impairment or destruction of a retinal cell comprising geranylgeranylacetone which
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone.
  • a method for suppressing the degeneration, impairment or destruction of a retinal cell comprising the step of administering to a patient with a retinal disease an effective amount of geranylgeranylacetone which
  • (a) is a mixture of (5E,9E,13E)-geranylgeranylacetone and (5Z,9E,13E)-geranylgeranylacetone, the (5E,9E,13E)-geranylgeranylacetone content of the mixture being 80% by weight or more,
  • (b) consists of (5E,9E,13E)-geranylgeranylacetone, or
  • (c) consists of (5Z,9E,13E)-geranylgeranylacetone, thereby suppressing the degeneration, impairment or destruction of a retinal cell.
  • the agent of the present invention comprising geranylgeranylacetone (hereinafter sometimes abbreviated to “GGA”) having the all-trans form content of 80% by weight or more protects various types of retinal cells from degeneration, impairment or destruction, thereby remarkably promoting the survival. Consequently, the agent exhibits a remarkable effect of preventing, ameliorating or treating various retinal diseases.
  • GGA geranylgeranylacetone
  • GGA having the all-trans form content of 80% by weight or more can exhibit the protective action for a retinal cell even in a small amount, and the agent of the present invention is therefore not required to comprise a high level of GGA.
  • the components of an ophthalmic preparation have poor penetration into the eyeball and are hence used at a relatively high concentration. Therefore, the fact that the agent of the present invention requires only a low level of GGA is a great advantage as an ophthalmic preparation.
  • the agent of the present invention directly suppresses retinal cell death and thus fundamentally prevents, ameliorates or treats a retinal disease. Therefore, the agent of the present invention is very useful as a therapeutic agent for a retinal disease.
  • the agent of the present invention is safe.
  • the agent of the present invention can be formulated into a dosage form that the patient can easily take at home, for example, an eye drop or an oral agent and is therefore useful as a prophylactic, ameliorating or therapeutic agent for a serious retinal disease.
  • a liquid preparation comprising teprenone, which is a mixture of the all-trans form and the 5Z-mono-cis form at a weight ratio of 3:2, tends to become white turbid when stored at low temperature. Consequently, during commercial distribution to or during storage in cold areas, such a liquid preparation becomes white turbid, which reduces its commercial value.
  • the agent of the present invention comprising GGA having the all-trans form content of 80% by weight or more hardly becomes white turbid even when stored at low temperature. Therefore, the agent of the present invention can be commercially distributed to any area and thus its commercial value is high.
  • an ophthalmic composition of the present invention comprising GGA having the all-trans form content of 80% by weight or more exhibits reduced eye irritancy.
  • Mono-cis-GGA and GGA that is a mixture of the all-trans form and the mono-cis form and has a very high mono-cis form content also have a protective action for a retinal cell and are very effective in the prevention, amelioration and treatment of a retinal disease. Their effects are far superior to that of teprenone, which is a mixture of the all-trans form and the 5Z-mono-cis form at a weight ratio of 3:2.
  • FIG. 1 shows the cytoprotective effect of GGA against ischemic cell death induced by hypoxia and low glucose.
  • FIG. 2 shows the neurite outgrowth inducing effect of GGA in rat RGC.
  • FIG. 3 is photographs showing the neurite outgrowth inducing effect of GGA in rat RGC.
  • FIG. 4 shows the cytoprotective action of GGA against oxidative stress.
  • FIG. 5 shows the reducing effect of GGA on IL-8 production by TNF- ⁇ .
  • FIG. 6 shows the ocular neuroprotective actions of the all-trans form and the 5Z-mono-cis form in rat models with glaucoma induced by NMDA.
  • FIG. 7 shows the ocular neuroprotective action of the all-trans form in rat models with glaucoma induced by NMDA.
  • FIG. 8 shows increase in the thickness of the inner plexiform layer of the retina by the all-trans form in rat models with glaucoma induced by NMDA.
  • FIG. 9 shows the ocular neuroprotective action of the all-trans form in rat models with glaucoma induced by NMDA.
  • FIG. 10 shows the effect of reducing white turbidity during storage at low temperature, observed in a GGA-containing ophthalmic composition.
  • a prophylactic, ameliorating or therapeutic agent for a retinal disease of the present invention comprises GGA as an active ingredient.
  • GGA herein is entirely in the all-trans form; entirely in the mono-cis form; a mixture of the all-trans form and the mono-cis form, the mixture having the all-trans form content of 80% by weight or more; or a mixture of the all-trans form and the mono-cis form, the mixture having a very high mono-cis form content.
  • GGA has eight geometric isomers. Specifically, the eight geometric isomers are:
  • GGA consists of the all-trans form, consists of the mono-cis form, or is a mixture of the all-trans form and the mono-cis form.
  • the mono-cis form may be any of the 5Z-mono-cis form, the 9Z-mono-cis form, and the 13Z-mono-cis form, or a combination of two or more thereof.
  • the mono-cis form is the 5Z-mono-cis form.
  • the all-trans form content of the mixture is 80% by weight or more, preferably 82% by weight or more, more preferably 84% by weight or more, further more preferably 86% by weight or more, further more preferably 88% by weight or more, further more preferably 90% by weight or more, further more preferably 92% by weight or more, further more preferably 94% by weight or more, further more preferably 96% by weight, further more preferably 98% by weight or more.
  • GGA consists of the all-trans form.
  • the mixture having the all-trans form content in the above ranges exhibits a remarkable effect of preventing, ameliorating or treating a retinal disease and hardly becomes white turbid when stored at low temperature.
  • a mixture of the all-trans form and the mono-cis form (in particular the 5Z-mono-cis form) with a very high mono-cis form (in particular the 5Z-mono-cis form) ratio is also preferred due to its remarkable prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the all-trans form can be purchased from, for example, Rionlon Development Co., Ltd.
  • the all-trans form can also be obtained through separating the all-trans form and the 5Z-mono-cis form of a marketed teprenone (Eisai Co., Ltd., Wako Pure Chemical Industries, Ltd., Yoshindo Inc., etc.) by, for example, silica gel chromatography using a mobile phase of n-hexane/ethyl acetate (9:1).
  • a marketed teprenone Eisai Co., Ltd., Wako Pure Chemical Industries, Ltd., Yoshindo Inc., etc.
  • silica gel chromatography using a mobile phase of n-hexane/ethyl acetate (9:1).
  • the separation of the all-trans form and the 5Z-mono-cis form of a marketed teprenone can also be commissioned to, for example, KNC Laboratories Co., Ltd.
  • the 5Z-mono-cis form is a compound represented by the following structural formula:
  • the all-trans form can also be synthesized in accordance with a method described in, for example, Bull. Korean Chem. Soc., 2009, Vol. 30, No. 9, 215-217.
  • This literature describes, for example, the method shown by the following synthesis scheme:
  • geranyllinalool 1 is mixed with Compound 2 and aluminum isopropoxide, and the mixture is gradually heated to 130° C. to allow the reaction to occur. After the completion of the reaction, the residue Compound 2 is removed and the reaction mixture is diluted with 5%; sodium carbonate so that the residue aluminum propoxide is quenched. In this way, the all-trans form can be obtained.
  • the obtained all-trans form is subsequently purified by, for example, silica gel chromatography using dichloromethane as an eluent.
  • Mixtures of the all-trans form and the 5Z-mono-cis form can be obtained by adding the all-trans form or the 5Z-mono-cis form to a marketed teprenone.
  • the dosage form of the agent of the present invention is not particularly limited and any known pharmaceutical dosage form can be employed without limitation.
  • examples thereof include an ophthalmic agent, an oral agent, an injection (an intravenous injection, a hypodermic injection, an intramuscular injection, etc.), a percutaneous absorption agent, a suppository, and inhalant.
  • an ophthalmic agent, an oral agent, or a percutaneous absorption agent preferred are an ophthalmic agent in terms of the effectiveness as a prophylactic, ameliorating or therapeutic agent for a retinal disease and the easiness of use for the patient.
  • the preparation in any of these dosage forms can comprise, in addition to GGA, a pharmaceutically acceptable base or carrier, a pharmaceutically acceptable additive, and/or a physiologically or pharmacologically active component other than GGA.
  • the form of an ophthalmic agent is not particularly limited and may be in any form such as a liquid, a fluid, a gel, a semi-solid, and a solid.
  • the type of the ophthalmic agent is not particularly limited. Examples thereof include an eye drop, an eye wash, a contact lens-wearing solution, a contact lens solution (e.g., a washing solution, a storage solution, a sterilizing solution, a multipurpose solution, a package solution, etc.), a preservative for a harvested ocular tissue (a cornea etc.) for transplantation, an irrigating solution for surgery, an ophthalmic ointment (e.g., a water-soluble ophthalmic ointment, an oil-soluble ophthalmic ointment, etc.), an intraocular injection (e.g., an intravitreal injection), etc.
  • an eye drop e.g., an eye wash, a contact lens-wearing solution, a contact lens solution (e.g., a washing solution, a storage solution, a sterilizing solution, a multipurpose solution, a package solution, etc.), a preservative for a harvested ocular tissue (a
  • the ophthalmic agent in the form other than a solid for example, a liquid, a fluid, a gel, or a semi-solid or the ophthalmic agent in a solid form may be an aqueous composition or an oil composition such as an ointment.
  • An ophthalmic preparation can be prepared by mixing GGA with a pharmaceutically acceptable base or carrier, and as needed a pharmaceutically acceptable additive for an ophthalmic preparation and another active ingredient (a physiologically or pharmacologically active component).
  • Examples of the base or carrier include water; an aqueous solvent such as a polar solvent; a polyalcohol; a vegetable oil; and an oily base.
  • Examples of the base or carrier for an intraocular injection include water for injection and physiological saline.
  • bases or carriers can be used alone or in combination of two or more thereof.
  • Examples of the additive include a surfactant, a flavor or cooling agent, an antiseptic, a bactericide or antibacterial agent, a pH adjusting agent, a tonicity agent, a chelating agent, a buffering agent, a stabilizer, an antioxidant, and a thickening agent.
  • An intraocular injection may contain a solubilizing agent, a suspending agent, a tonicity agent, a buffering agent, a soothing agent, a stabilizer, and an antiseptic.
  • additives can be used alone or in combination of two or more thereof.
  • nonionic surfactants such as polyoxyethylene (hereinafter sometimes referred to as “POE”)-polyoxypropylene (hereinafter sometimes referred to as “POP”) block copolymers (e.g., poloxamer 407, poloxamer 235, poloxamer 188), ethylenediamine POE-POP block copolymer adducts (e.g., poloxamine), POE sorbitan fatty acid esters (e.g., polysorbate 20, polysorbate 60, polysorbate 80 (TO-10 etc.)), POE hydrogenated castor oils (e.g., POE (60) hydrogenated castor oil (HCO-60 etc.)), POE castor oils, POE alkyl ethers (e.g., polyoxyethylene (9) lauryl ether, polyoxyethylene (20) polyoxypropylene (4) cetyl ether), and polyoxyl stearate;
  • POE polyoxyethylene
  • POP polyoxypropylene
  • amphoteric surfactants such as glycine-type amphoteric surfactants (e.g., alkyl diaminoethyl glycine, alkyl polyaminoethyl glycine), betaine-type amphoteric surfactants (e.g., lauryldimethylaminoacetic betaine, imidazolinium betaine); cationic surfactants such as alkyl quaternary ammonium salts (e.g., benzalkonium chloride, benzethonium chloride); etc.
  • glycine-type amphoteric surfactants e.g., alkyl diaminoethyl glycine, alkyl polyaminoethyl glycine
  • betaine-type amphoteric surfactants e.g., lauryldimethylaminoacetic betaine, imidazolinium betaine
  • cationic surfactants such as alkyl quaternary am
  • the numbers in the parentheses represent the molar number of added POE or POP.
  • Flavors or cooling agents for example, camphor, borneol, terpenes (these may be in the d-form, l-form, or dl-form); essential oils such as mentha water, eucalyptus oil, bergamot oil, anethole, eugenol, geraniol, menthol, limonene, mentha oil, peppermint oil, rose oil, etc.
  • essential oils such as mentha water, eucalyptus oil, bergamot oil, anethole, eugenol, geraniol, menthol, limonene, mentha oil, peppermint oil, rose oil, etc.
  • Antiseptics, bactericides, or antibacterial agents for example, polidronium chloride, alkyldiaminoethylglycine hydrochloride, sodium benzoate, ethanol, benzalkonium chloride, benzethonium chloride, chlorhexidine gluconate, chlorobutanol, sorbic acid, potassium sorbate, sodium dehydroacetate, methyl paraoxybenzoate, ethyl paraoxybenzoate, propyl paraoxybenzoate, butyl paraoxybenzoate, oxyquinoline sulfate, phenethyl alcohol, benzyl alcohol, biguanide compounds (in particular, polyhexamethylene biguanide or its hydrochloride etc.), Glokill (Rhodia Ltd.), etc.
  • biguanide compounds in particular, polyhexamethylene biguanide or its hydrochloride etc.
  • Glokill Rakill
  • pH adjusting agents for example, hydrochloric acid, sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, triethanolamine, monoethanolamine, diisopropanolamine, sulfuric acid, phosphoric acid, etc.
  • Tonicity agents for example, sodium bisulfite, sodium sulfite, potassium chloride, calcium chloride, sodium chloride, magnesium chloride, potassium acetate, sodium acetate, sodium bicarbonate, sodium carbonate, sodium thiosulfate, magnesium sulfate, disodium hydrogen phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, glycerin, propylene glycol, etc.
  • Chelating agents for example, ascorbic acid, edetic acid tetrasodium, sodium edetate, citric acid, etc.
  • Buffering agents for example, phosphate buffering agents; citrate buffering agents such as citric acid and sodium citrate; acetate buffering agents such as acetic acid, potassium acetate, and sodium acetate; carbonate buffering agents such as sodium bicarbonate and sodium carbonate; borate buffering agents such as boric acid and borax; amino acid buffering agents such as taurine, aspartic acid and its salts (e.g., potassium salts etc.), and ⁇ -aminocaproic acid; etc.
  • citrate buffering agents such as citric acid and sodium citrate
  • acetate buffering agents such as acetic acid, potassium acetate, and sodium acetate
  • carbonate buffering agents such as sodium bicarbonate and sodium carbonate
  • borate buffering agents such as boric acid and borax
  • amino acid buffering agents such as taurine, aspartic acid and its salts (e.g., potassium salts etc.), and ⁇ -aminocaproic acid; etc.
  • phosphate buffering agents are preferred for pH adjustment and the use of a phosphate buffering agent reduces adsorption of GGA to a container wall, thereby reducing the loss of the GGA content of the ophthalmic agent.
  • the use of a phosphate buffering agent also reduces white turbidity during storage at low temperature, reduces adsorption of GGA to a contact lens, and improves the thermal and light stabilities.
  • the phosphate buffering agents can be used alone or in combination of two or more thereof.
  • the phosphate buffering agent is not particularly limited and examples thereof include phosphoric acid; alkali metal phosphates such as disodium hydrogen phosphate, sodium dihydrogen phosphate, trisodium phosphate, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, and tripotassium phosphate; alkaline earth metal phosphates such as calcium phosphate, calcium hydrogen phosphate, calcium dihydrogen phosphate, monomagnesium phosphate, dimagnesium phosphate (magnesium hydrogen phosphate), and trimagnesium phosphate; and ammonium phosphates such as diammonium hydrogen phosphate and ammonium dihydrogen phosphate.
  • the phosphate buffering agent may be an anhydride or hydrate.
  • At least one selected from the group consisting of phosphoric acid and alkali metal phosphates is used, and more preferably at least one selected from the group consisting of phosphoric acid and sodium phosphates is used.
  • Preferred combinations of phosphate buffering agents are, for example, a combination of phosphoric acid, disodium hydrogen phosphate, sodium dihydrogen phosphate, and trisodium phosphate; a combination of phosphoric acid, disodium hydrogen phosphate, and sodium dihydrogen phosphate; a combination of phosphoric acid, disodium hydrogen phosphate, and trisodium phosphate; a combination of phosphoric acid, sodium dihydrogen phosphate, and trisodium phosphate; a combination of disodium hydrogen phosphate, sodium dihydrogen phosphate, and trisodium phosphate; a combination of phosphoric acid and disodium hydrogen phosphate; a combination of phosphoric acid and sodium dihydrogen phosphate; a combination of phosphoric acid and trisodium phosphate; a combination of disodium hydrogen phosphate and sodium dihydrogen phosphate; a combination of disodium hydrogen phosphate and trisodium phosphate; and a combination of sodium di
  • a combination of phosphoric acid, disodium hydrogen phosphate, and sodium dihydrogen phosphate preferred are a combination of phosphoric acid, disodium hydrogen phosphate, and sodium dihydrogen phosphate; a combination of phosphoric acid and disodium hydrogen phosphate; a combination of phosphoric acid and sodium dihydrogen phosphate; and a combination of disodium hydrogen phosphate and sodium dihydrogen phosphate. More preferred is a combination of disodium hydrogen phosphate and sodium dihydrogen phosphate.
  • the phosphate buffering agent content expressed in terms of a corresponding anhydride is preferably 0.001% by weight or more, more preferably 0.005% by weight or more, further more preferably 0.01% by weight or more, further more preferably 0.05% by weight or more, relative to the total amount of the ophthalmic agent.
  • the phosphate buffering agent in the above ranges is sufficient to exhibit the effects of stabilizing GGA, reducing white turbidity at low temperature, and reducing adsorption of GGA to a container wall or a contact lens.
  • the phosphate buffering agent content of the ophthalmic agent expressed in terms of a corresponding anhydride is preferably 10% by weight or less, more preferably 7% by weight or less, further more preferably 5% by weight or less, further more preferably 3% by weight or less, relative to the total amount of the ophthalmic agent.
  • GGA is in the above ranges, the ophthalmic agent exhibits reduced eye irritancy.
  • the phosphate buffering agent content expressed in terms of a corresponding anhydride is, for example, about 0.001 to 10% by weight, about 0.001 to 7% by weight, about 0.001 to 5% by weight, about 0.001 to 3% by weight, about 0.005 to 10% by weight, about 0.005 to 7% by weight, about 0.005 to 5% by weight, about 0.005 to 3% by weight, about 0.01 to 10% by weight, about 0.01 to 7% by weight, about 0.01 to 5% by weight, about 0.01 to 3% by weight, about 0.05 to 10% by weight, about 0.05 to 7% by weight, about 0.05 to 5% by weight, or about 0.05 to 3% by weight, relative to the total amount of the ophthalmic agent.
  • the phosphate buffering agent content expressed in terms of a corresponding anhydride is preferably 0.0005 parts by weight or more, more preferably 0.001 parts by weight or more, further more preferably 0.005 parts by weight or more, further more preferably 0.01 parts by weight or more, relative to 1 part by weight of GGA.
  • the phosphate buffering agent in the above ranges is sufficient to exhibit the effects of stabilizing GGA, reducing white turbidity at low temperature, and reducing adsorption of GGA to a container wall or a contact lens.
  • the phosphate buffering agent content expressed in terms of a corresponding anhydride is preferably 5000 parts by weight or less, more preferably 1000 parts by weight or less, further more preferably 500 parts by weight or less, further more preferably 200 parts by weight or less, relative to 1 part by weight of GGA.
  • the ophthalmic agent exhibits reduced eye irritancy.
  • the phosphate buffering agent content expressed in terms of a corresponding anhydride is, for example, about 0.0005 to 5000 parts by weight, about 0.0005 to 1000 parts by weight, about 0.0005 to 500 parts by weight, about 0.0005 to 200 parts by weight, about 0.001 to 5000 parts by weight, about 0.001 to 1000 parts by weight, about 0.001 to 500 parts by weight, about 0.001 to 200 parts by weight, about 0.005 to 5000 parts by weight, about 0.005 to 1000 parts by weight, about 0.005 to 500 parts by weight, about 0.005 to 200 parts by weight, about 0.01 to 5000 parts by weight, about 0.01 to 1000 parts by weight, about 0.01 to 500 parts by weight, or about 0.01 to 200 parts by weight, relative to 1 part by weight of GGA.
  • Stabilizers for example, trometamol, sodium formaldehyde sulfoxylate (rongalit), tocopherol, sodium pyrosulfite, monoethanolamine, aluminum monostearate, glyceryl monostearate, etc.
  • Antioxidants for example, water-soluble antioxidants such as ascorbic acid, ascorbic acid derivatives (ascorbic acid-2-sulfate disodium salts, sodium ascorbate, ascorbic acid-2-magnesium phosphate, ascorbic acid-2-sodium phosphate, etc.), sodium bisulfite, sodium sulfite, sodium thiosulfate, etc.
  • water-soluble antioxidants such as ascorbic acid, ascorbic acid derivatives (ascorbic acid-2-sulfate disodium salts, sodium ascorbate, ascorbic acid-2-magnesium phosphate, ascorbic acid-2-sodium phosphate, etc.), sodium bisulfite, sodium sulfite, sodium thiosulfate, etc.
  • the ophthalmic agent may comprise a fat-soluble antioxidant and the use of a fat-soluble antioxidant reduces adsorption of the ophthalmic agent to a container wall, thereby reducing the loss of the GGA content of the composition.
  • the use of a fat-soluble antioxidant also reduces adsorption of GGA to a contact lens, and improves the thermal and light stabilities of GGA.
  • the fat-soluble antioxidant examples include butyl group-containing phenols such as butylhydroxytoluene (BHT) and butylhydroxyanisole (BHA); nordihydroguaiaretic acid (NDGA); ascorbic acid esters such as ascorbyl palmitate, ascorbyl stearate, ascorbyl aminopropyl phosphate, ascorbyl tocopherol phosphate, ascorbic acid triphosphate, and ascorbyl palmitate phosphate; tocopherols such as ⁇ -tocopherol, ⁇ -tocopherol, ⁇ -tocopherol, and ⁇ -tocopherol; tocopherol derivatives such as tocopherol acetate, tocopherol nicotinate, and tocopherol succinate; gallic acid esters such as ethyl gallate, propyl gallate, octyl gallate, and dodecyl gallate; propyl gallate; 3-butyl-4-hydroxyquinolin-2-
  • butyl group-containing phenols preferred are butyl group-containing phenols, NDGA, ascorbic acid esters, tocopherols, tocopherol derivatives, gallic acid esters, propyl gallate, and 3-butyl-4-hydroxyquinol in-2-one, vegetable oils, and the vitamin A group.
  • preferred are butyl group-containing phenols, tocopherols, tocopherol derivatives, vegetable oils, and the vitamin A group more preferred are butyl group-containing phenols, vegetable oils, retinol, and retinol esters, and further more preferred are BHT, BHA, sesame oil, and retinol palmitate.
  • These fat-soluble antioxidants can be used alone or in combination of two or more thereof.
  • the fat-soluble antioxidant content of the ophthalmic agent is preferably 0.00001% by weight or more, more preferably 0.00005% by weight or more, further more preferably 0.0001% by weight or more, further more preferably 0.0005% by weight or more, relative to the total amount of the ophthalmic agent.
  • the fat-soluble antioxidant in the above ranges is sufficient to exhibit the effects of reducing adsorption of GGA to a container wall (thereby reducing the loss of the GGA content), reducing adsorption of GGA to a contact lens, and improving the thermal and light stabilities of GGA.
  • the fat-soluble antioxidant content of the ophthalmic agent is preferably 10% by weight or less, more preferably 5% by weight or less, further more preferably 2% by weight or less, further more preferably 1% by weight or less, relative to the total amount of the composition.
  • the ophthalmic agent exhibits reduced eye irritancy.
  • the fat-soluble antioxidant content of the ophthalmic agent is, for example, about 0.00001 to 10% by weight, about 0.00001 to 5% by weight, about 0.00001 to 2% by weight, about 0.00001 to 1% by weight, about 0.00005 to 10% by weight, about 0.00005 to 5% by weight, about 0.00005 to 2% by weight, about 0.00005 to 1% by weight, about 0.0001 to 10% by weight, about 0.0001 to 5% by weight, about 0.0001 to 2% by weight, about 0.0001 to 1% by weight, about 0.0005 to 10% by weight, about 0.0005 to 5% by weight, about 0.0005 to 2% by weight, or about 0.0005 to 1% by weight, relative to the total amount of the ophthalmic agent.
  • the fat-soluble antioxidant content of the ophthalmic agent is preferably 0.0001 parts by weight or more, more preferably 0.001 parts by weight or more, further more preferably 0.005 parts by weight or more, further more preferably 0.01 parts by weight or more, relative to 1 part by weight of GGA.
  • the fat-soluble antioxidant in the above ranges is sufficient to exhibit the effects of reducing adsorption of GGA to a container wall (thereby reducing the loss of the GGA content), reducing adsorption of GGA to a contact lens, and improving the thermal and light stabilities of GGA.
  • the fat-soluble antioxidant content of the ophthalmic agent is preferably 100 parts by weight or less, more preferably 50 parts by weight or less, further more preferably 10 parts by weight or less, further more preferably 5 parts by weight or less, relative to 1 part by weight of GGA.
  • the ophthalmic agent exhibits reduced eye irritancy.
  • the fat-soluble antioxidant content of the ophthalmic agent is, for example, about 0.0001 to 100 parts by weight, about 0.0001 to 50 parts by weight, about 0.0001 to 10 parts by weight, about 0.0001 to 5 parts by weight, about 0.001 to 100 parts by weight, about 0.001 to 50 parts by weight, about 0.001 to 10 parts by weight, about 0.001 to 5 parts by weight, about 0.005 to 100 parts by weight, about 0.005 to 50 parts by weight, about 0.005 to 10 parts by weight, about 0.005 to 5 parts by weight, about 0.01 to 100 parts by weight, about 0.01 to 50 parts by weight, about 0.01 to 10 parts by weight, or about 0.01 to 5 parts by weight, relative to 1 part by weight of GGA.
  • Thickening agents for example, guar gum; hydroxypropyl guar gum; high molecular cellulose compounds such as methylcellulose, ethylcellulose, hydroxypropyl methylcellulose, hydroxyethyl cellulose, and carboxymethyl cellulose sodium; gum arabic; karaya gum; xanthan gum; agar-agar; alginic acid; a-cyclodextrin; dextrin; dextran; heparin; heparinoid; heparin sulfate; heparan sulfate; hyaluronic acid; hyaluronates (sodium salts etc.); sodium chondroitin sulfate; starch; chitin and its derivatives; chitosan and its derivatives; carrageenan; sorbitol; high molecular polyvinyl compounds such as polyvinylpyrrolidone, polyvinyl alcohol, and polyvinyl methacrylate; carb
  • the ophthalmic agent comprises, in addition to GGA, a component that prevents or treats a retinal disease with a different mechanism of action from that of GGA. That is, the ophthalmic agent preferably comprises a combination of GGA and another component as active ingredients for preventing, ameliorating or treating a retinal disease.
  • Such components that prevent or treat a retinal disease with a different mechanism of action from that of GGA can be used alone or in combination of two or more thereof.
  • Examples of such a combination include, but are not limited to, combinations of GGA and a prostaglandin F2 ⁇ derivative, such as combinations of GGA and a prost drug (GGA and latanoprost, GGA and travoprost, GGA and tafluprost, etc.), combinations of GGA and a prostamide drug (GGA and bimatoprost, etc.), and combinations of GGA and a prostone drug (GGA and isopropyl unoprostone); combinations of GGA and a sympatholytic agent such as, combinations of GGA and a ⁇ -blocker (GGA and timolol maleate, GGA and gel-forming timolol, GGA and carteolol hydrochloride, GGA and gel-forming carteolol, etc.), combinations of GGA and a ⁇ 1-blocker (GGA and betaxolol hydrochloride, etc.), combinations of GGA and an ⁇ -blocker (GGA and le
  • combinations of GGA and a prostaglandin F2 ⁇ derivative and combinations of GGA and a sympatholytic drug especially preferred are combinations of GGA and a ⁇ -blocker because these combinations exhibit a very high prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the ophthalmic agent can comprise a pharmacologically or physiologically active component other than the prophylactic, ameliorating or therapeutic component for a retinal disease.
  • pharmacologically or physiologically active components can be used alone or in combination of two or more thereof.
  • Examples of the pharmacologically or physiologically active components include nerve growth factors, decongestants, drugs for restoring extraocular muscle function, anti-inflammatory drugs or astringent drugs, antihistaminics or antiallergics, vitamins, amino acids, antibacterial drugs or bactericides, sugars, high molecular compounds, celluloses or their derivatives, local anesthetics, etc. These drugs will be exemplified below.
  • Nerve growth factors for example, nerve growth factor (NGF), brain-derived nerve growth factor (BDNF), glial cell line-derived neurotrophic factor (GDNF), etc.
  • NGF nerve growth factor
  • BDNF brain-derived nerve growth factor
  • GDNF glial cell line-derived neurotrophic factor
  • Decongestants for example, ⁇ -adrenergic agonists such as epinephrine, epinephrine hydrochloride, ephedrine hydrochloride, oxymetazoline hydrochloride, tetrahydrozoline hydrochloride, naphazoline hydrochloride, phenylephrine hydrochloride, methylephedrine hydrochloride, epinephrine hydrogen tartrate, naphazoline nitrate, etc. These may be in the d-form, l-form, or dl-form.
  • ⁇ -adrenergic agonists such as epinephrine, epinephrine hydrochloride, ephedrine hydrochloride, oxymetazoline hydrochloride, tetrahydrozoline hydrochloride, naphazoline hydrochloride, phenylephrine hydrochloride, methylephedrine hydrochloride, epin
  • Drugs for restoring extraocular muscle function for example, cholinesterase inhibitors having an active center similar to that of acetylcholine, such as neostigmine methylsulfate, tropicamide, helenien, atropine sulfate, etc.
  • Anti-inflammatory drugs or astringent drugs for example, zinc sulfate, zinc lactate, allantoin, ⁇ -aminocaproic acid, indomethacin, lysozyme chloride, silver nitrate, pranoprofen, azulene sulfonate sodium, dipotassium glycyrrhizinate, diammonium glycyrrhizinate, diclofenac sodium, bromfenac sodium, berberine chloride, berberine sulfate, etc.
  • Antihistaminics or antiallergics for example, acitazanolast, diphenhydramine or its salts (hydrochloride etc.), chlorpheniramine maleate, ketotifen fumarate, levocabastine or its salts (hydrochloride etc.), amlexanox, ibudilast, tazanolast, tranilast, oxatomide, suplatast or its salts (tosilate etc.), sodium cromoglicate, pemirolast potassium, etc.
  • Vitamins for example, retinol acetate, retinol palmitate, pyridoxine hydrochloride, flavin adenine dinucleotide sodium, pyridoxal phosphate, cyanocobalamin, panthenol, calcium pantothenate, sodium pantothenate, ascorbic acid, tocopherol acetate, tocopherol nicotinate, tocopherol succinate, tocopherol calcium succinate, ubiquinone derivatives, etc.
  • Amino acids for example, aminoethylsulfonic acid (taurine), glutamic acid, creatinine, sodium aspartate, potassium aspartate, magnesium aspartate, magnesium potassium aspartate, sodium glutamate, magnesium glutamate, ⁇ -aminocaproic acid, glycine, alanine, arginine, lysine, ⁇ -aminobutyric acid, ⁇ -aminovaleric acid, sodium chondroitin sulfate, etc. These may be in the d-form, l-form, or dl-form.
  • Antibacterial drugs or bactericides for example, alkylpolyaminoethylglycine, chloramphenicol, sulfamethoxazole, sulfisoxazole, sulfamethoxazole sodium, sulfisoxazole diethanolamine, sulfisoxazole monoethanolamine, sulfisomezole sodium, sulfisomidine sodium, ofloxacin, norfloxacin, levofloxacin, lomefloxacin hydrochloride, acyclovir, etc.
  • Sugars for example, monosaccharides, disaccharide, in particular, glucose, maltose, trehalose, sucrose, cyclodextrin, xylitol, sorbitol, mannitol, etc.
  • High molecular compounds for example, alginic acid, sodium alginate, dextrin, dextran, pectin, hyaluronic acid, chondroitin sulfate, (completely or partially saponified) polyvinyl alcohol, polyvinylpyrrolidone, carboxy vinyl polymers, macrogol, pharmaceutically acceptable salts thereof, etc.
  • Celluloses or their derivatives for example, ethylcellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, methylcellulose, carboxymethyl cellulose, carboxymethylcellulose sodium, carboxyethyl cellulose, nitrocellulose, etc.
  • Local anesthetics for example, chlorobutanol, procaine hydrochloride, lidocaine hydrochloride, etc.
  • the GGA content of the ophthalmic composition is preferably 0.00001% by weight or more, more preferably 0.0001% by weight or more, further more preferably 0.001% by weight or more, relative to the total amount of the composition.
  • the GGA content may be 0.01% by weight or more, 0.1% by weight or more, or 1% by weight or more. GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the GGA content of the ophthalmic composition is preferably 10% by weight or less, more preferably 5% by weight or less, further more preferably 3% by weight or less, relative to the total amount of the composition.
  • GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease, and the ophthalmic preparation comprising GGA in the above ranges allows clear vision and hardly causes blurred vision.
  • the GGA content of the ophthalmic composition is, for example, about 0.00001 to 10% by weight, about 0.00001 to 5% by weight, about 0.00001 to 3% by weight, about 0.0001 to 10% by weight, about 0.0001 to 5% by weight, about 0.0001 to 3% by weight, about 0.001 to 10% by weight, about 0.001 to 5% by weight, about 0.001 to 3% by weight, about 0.01 to 10% by weight, about 0.01 to 5% by weight, about 0.01 to 3% by weight, about 0.1 to 10% by weight, about 0.1 to 5% by weight, about 0.1 to 3% by weight, about 1 to 10% by weight, about 1 to 5% by weight, or about 1 to 3% by weight, relative to the total amount of the composition.
  • the GGA content of a solid preparation such as a sustained-release intraocular implant preparation and a sustained-release contact lens preparation impregnated with GGA will be described later.
  • the pH of the ophthalmic agent is preferably 4 or higher, more preferably 5.5 or higher, further more preferably 6 or higher, further more preferably 6.5 or higher.
  • the preparation having a pH value in the above ranges is excellent in the thermal and light stabilities of GGA.
  • the pH of the ophthalmic agent is preferably 9 or lower, more preferably 8.5 or lower, further more preferably 8 or lower, further more preferably 7.5 or lower.
  • the ophthalmic agent having a pH value in the above ranges exhibits reduced eye irritancy.
  • a sustained-release intraocular implant is another example of the ophthalmic agent.
  • Such a sustained-release intraocular implant can be prepared by various known preparation methods.
  • the sustained-release intraocular implant prepared by known methods are, for example, a matrix preparation prepared by mixing GGA with a carrier containing a high molecular material and forming the mixture into a particular shape, a preparation prepared by coating a core containing GGA with a high molecular membrane, a capsule preparation prepared by filling GGA into a minute capsule made of a high molecular material, etc.
  • any high molecular material can be used without limitation as long as it is usually used for a sustained-release intraocular implant.
  • a high molecular material include hydroxypropyl cellulose, hydroxypropyl methylcellulose, hydroxypropyl methylcellulose phthalate, pullulan, gelatin, collagen, atelocollagen, hyaluronic acid, casein, agar-agar, gum arabic, dextrin, ethylcellulose, methylcellulose, chitin, chitosan, mannan, carboxy methyl ethyl cellulose, carboxymethyl cellulose sodium, polyethylene glycol, sodium alginate, polyvinyl alcohol, cellulose acetate, polyvinylpyrrolidone, silicone, polyvinyl acetal diethylamino acetate, albumin, lactic acid-glycolic acid copolymers, etc.
  • These high molecular materials can be used alone or in combination of two or more thereof.
  • the sustained-release intraocular implant comprises GGA and another prophylactic, ameliorating or therapeutic component for a retinal disease.
  • the sustained-release intraocular implant can further comprise another pharmacologically or physiologically active component.
  • Such a component is exemplified above.
  • the GGA content of the sustained-release intraocular implant is preferably 0.001 mg or more, more preferably 0.01 mg or more, further more preferably 0.1 mg or more, relative to the total amount of the preparation.
  • the GGA content is preferably 1000 mg or less, more preferably 100 mg or less, further more preferably 10 mg or less. GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the GGA content of the sustained-release intraocular implant is, for example, about 0.001 to 1000 mg, about 0.001 to 100 mg, about 0.001 to 10 mg, about 0.01 to 1000 mg, about 0.01 to 100 mg, about 0.01 to 10 mg, about 0.1 to 1000 mg, about 0.1 to 100 mg, or about 0.1 to 10 mg, relative to the total amount of the preparation.
  • a sustained-release contact lens preparation in which the contact lens itself comprises GGA is another example of the ophthalmic agent.
  • Such a sustained-release preparation can be prepared by, for example, immersing a contact lens in a contact lens solution containing GGA, the contact lens solution being exemplified by a washing solution, a storage solution, a sterilizing solution, a multipurpose solution, and a package solution, etc.
  • GGA may be impregnated into a raw material for producing a contact lens, for example, a constituent monomer (hydroxyethyl methacrylate, methyl methacrylate, vinylpyrrolidone, divinylbenzene, methacrylic acid, ethylene glycol dimethacrylate, benzoin methyl ether, etc.) of a contact lens polymer, a colorant, or an ultraviolet absorber, and with the use of these, the sustained-release contact lens can be prepared.
  • a constituent monomer hydroxyethyl methacrylate, methyl methacrylate, vinylpyrrolidone, divinylbenzene, methacrylic acid, ethylene glycol dimethacrylate, benzoin methyl ether, etc.
  • the GGA content of the sustained-release contact lens preparation is preferably 0.001 mg or more, more preferably 0.01 mg or more, further more preferably 0.1 mg or more, relative to the total amount of the preparation.
  • the GGA content is preferably 1000 mg or less, more preferably 100 mg or less, further more preferably 10 mg or less. GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the GGA content of the sustained-release contact lens preparation is, for example, about 0.001 to 1000 mg, about 0.001 to 100 mg, about 0.001 to 10 mg, about 0.01 to 1000 mg, about 0.01 to 100 mg, about 0.01 to 10 mg, about 0.1 to 1000 mg, about 0.1 to 100 mg, or about 0.1 to 10 mg, relative to the total amount of the preparation.
  • the sustained-release contact lens preparation comprises GGA and another prophylactic, ameliorating or therapeutic component for a retinal disease.
  • GGA prophylactic, ameliorating or therapeutic component for a retinal disease.
  • the sustained-release contact lens preparation can further comprise a pharmacologically or physiologically active component other than GGA. Such a component is exemplified above.
  • the dosage form of the ophthalmic agent is preferably an eye drop, an intraocular injection, an ophthalmic ointment, or an eye wash and is more preferably an eye drop because of their good penetration into an affected site.
  • GGA can be formulated into an oral agent or orally administered drug.
  • oral agent include, but are not limited to, solid preparations such as tablets (including sublingual tablets and orally disintegrating tablets), capsules (including soft capsules and microcapsules), granules, powders, tablet agents, chewable tablets, and troches; liquid preparations such as syrups, emulsions, and suspensions; etc.
  • the solid preparation can be prepared by mixing GGA with a pharmaceutically acceptable carrier, and as needed a pharmaceutically acceptable additive for an oral agent and a pharmacologically or physiologically active component other than GGA in accordance with a known method, for example, a method described in the Japanese Pharmacopoeia.
  • the pharmaceutically acceptable carrier examples include, but are not limited to, excipients such as lactose, saccharose, D-mannitol, D-sorbitol, starch, pregelatinized starch, dextrin, crystalline cellulose, low-substituted hydroxypropyl cellulose, carboxymethyl cellulose sodium, gum arabic, pullulan, light anhydrous silicic acid, synthetic aluminum silicate, and magnesium aluminometasilicate; binders such as pregelatinized starch, sucrose, gelatin, gum arabic, methylcellulose, carboxymethyl cellulose, carboxymethylcellulose sodium, crystalline cellulose, saccharose, D-mannitol, trehalose, dextrin, pullulan, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and polyvinylpyrrolidone; disintegrants such as lactose, saccharose, starch, carboxymethyl cellulose, carboxymethyl cellulose calcium, croscarmellose sodium,
  • the liquid preparation can also be prepared by a known method, for example, a method described in the Japanese Pharmacopoeia.
  • the liquid preparation can be prepared by dissolving or dispersing GGA in water, ethanol, glycerin, simple syrup, or a mixture thereof.
  • an additive for an oral agent such as a sweetener, an antiseptic, a lubricant, a diluent, a buffering agent, an aromatizing agent, a colorant, and an antioxidant.
  • the oral agent comprises GGA in combination with a component that prevents or treats a retinal disease with a different mechanism of action from that of the agent of the present invention.
  • a component that prevents or treats a retinal disease with a different mechanism of action from that of the agent of the present invention examples include, but are not limited to, combinations of GGA and a carbonic anhydrase inhibitor, such as GGA and acetazolamide, GGA and methazolamide, and GGA and diclofenamide; combinations of GGA and a hyperosmotic drug, such as GGA and concentrated glycerin, and GGA and isosorbide; etc.
  • combinations of GGA and a carbonic anhydrase inhibitor are preferred, more preferred are a combination of GGA and acetazolamide and a combination of GGA and methazolamide, and further more preferred is a combination of GGA and methazolamide.
  • Such components that prevent or treat a retinal disease with a different mechanism of action from that of GGA can be used alone or in combination of two or more thereof.
  • the oral agent can comprise a pharmacologically or physiologically active component other than the prophylactic, ameliorating or therapeutic component for a retinal disease.
  • Examples of such a known pharmacologically or physiologically active component include nerve growth factors, decongestants, drugs for restoring extraocular muscle function, anti-inflammatory drugs or astringent drugs, antihistaminics or antiallergics, vitamins, amino acids, antibacterial drugs or bactericides, etc.
  • the GGA content of the oral agent in the form of a solid preparation is preferably 0.001% by weight or more, more preferably 0.01% by weight or more, further more preferably 0.1% by weight or more, relative to the total amount of the composition.
  • the GGA content is preferably 80% by weight or less, more preferably 60% by weight or less, further more preferably 50% by weight or less.
  • the GGA content of the oral agent in the form of a solid preparation is, for example, about 0.001 to 80% by weight, about 0.001 to 60% by weight, about 0.001 to 50% by weight, about 0.01 to 80% by weight, about 0.01 to 60% by weight, about 0.01 to 50% by weight, about 0.1 to 80% by weight, about 0.1 to 60% by weight, or about 0.1 to 50% by weight, relative to the total amount of the preparation.
  • the GGA content of the oral agent in the form of a liquid preparation is preferably about 0.001% by weight or more, more preferably about 0.01% by weight or more, further more preferably about 0.1% by weight or more, relative to the total amount of the composition.
  • the GGA content is preferably about 80% by weight or less, more preferably about 60% by weight or less, further more preferably about 50% by weight or less.
  • the GGA content of the oral agent in the form of a liquid preparation is, for example, about 0.001 to 80% by weight, about 0.001 to 60% by weight, about 0.001 to 50% by weight, about 0.01 to 80% by weight, about 0.01 to 60% by weight, about 0.01 to 50% by weight, about 0.1 to 80% by weight, about 0.1 to 60% by weight, or about 0.1 to 50% by weight, relative to the total amount of the preparation.
  • GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the carriers, the additives, and the pharmacologically or physiologically active components other than GGA can be used alone or in combination of two or more thereof.
  • An injection can be prepared by dissolving or dispersing GGA in water for injection or physiological saline in accordance with a known method, for example, a method described in the Japanese Pharmacopoeia.
  • the injection may comprise a pharmaceutically acceptable carrier such as a solubilizing agent, a suspending agent, a tonicity agent, a buffering agent, a soothing agent, a stabilizer, an antiseptic, etc. and may further comprise a pharmaceutically acceptable additive for an injection.
  • the injection comprises, in addition to GGA, a component that prevents or treats a retinal disease with a different mechanism of action from that of GGA. That is, the injection preferably comprises a combination of GGA and another component as active ingredients for preventing, ameliorating or treating a retinal disease.
  • Such components that prevent or treat a retinal disease with a different mechanism of action from that of GGA can be used alone or in combination of two or more thereof.
  • Examples of such a combination include, but are not limited to, combinations of GGA and a prostaglandin F2 ⁇ derivative, such as combinations of GGA and a prost drug (GGA and latanoprost, GGA and travoprost, GGA and tafluprost, etc.), combinations of GGA and a prostamide drug (GGA and bimatoprost, etc.), and combinations of GGA and a prostone drug (GGA and isopropyl unoprostone); combinations of GGA and a sympatholytic agent such as, combinations of GGA and a ⁇ -blocker (GGA and timolol maleate, GGA and gel-forming timolol, GGA and carteolol hydrochloride, GGA and gel-forming carteolol, etc.), combinations of GGA and a ⁇ 1-blocker (GGA and betaxolol hydrochloride, etc.), combinations of GGA and an ⁇ -blocker (GGA and le
  • combinations of GGA and a prostaglandin F2 ⁇ derivative and combinations of GGA and a sympatholytic drug especially preferred are combinations of GGA and a ⁇ -blocker because these combinations exhibit a very high prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the injection can comprise a pharmacologically or physiologically active component other than the prophylactic, ameliorating or therapeutic component for a retinal disease.
  • pharmacologically or physiologically active component include nerve growth factors, decongestants, drugs for restoring extraocular muscle function, anti-inflammatory drugs or astringent drugs, antihistaminics or antiallergics, vitamins, amino acids, antibacterial drugs or bactericides, etc.
  • the GGA content of the injection is preferably 0.001% by weight or more, more preferably 0.01% by weight or more, further more preferably 0.1% by weight or more, relative to the total amount of the preparation.
  • the GGA content is preferably 80% by weight or less, more preferably 60% by weight or less, further more preferably 50% by weight or less. GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the GGA content of the injection is, for example, about 0.001 to 80% by weight, about 0.001 to 60% by weight, about 0.001 to is 50% by weight, about 0.01 to 80% by weight, about 0.01 to 60% by weight, about 0.01 to 50% by weight, about 0.1 to 80% by weight, about 0.1 to 60% by weight, or about 0.1 to 50% by weight, relative to the total amount of the preparation.
  • the additives and the pharmacologically or physiologically active components other than GGA can be used alone or in combination of two or more thereof.
  • a percutaneous absorption agent is exemplified by a liniment prepared by mixing GGA with a (pharmaceutically acceptable) base usually used for a pharmaceutical agent for external use and with a component other than GGA.
  • the base examples include polymers such as sodium alginate, gelatin, corn starch, tragacanth gum, methylcellulose, hydroxyethyl cellulose, carboxymethyl cellulose, xanthan gum, carrageenan, mannan, agarose, dextrin, carboxymethyl starch, polyvinyl alcohol, sodium polyacrylate, methoxyethylene-maleic anhydride copolymers, polyvinyl ethers, polyvinylpyrrolidone, carboxy vinyl polymers, hydroxypropyl cellulose, hydroxypropyl methylcellulose, and pullulan; hydrocarbons such as white petrolatum, yellow petrolatum, paraffin, ceresin wax, and microcrystalline wax; hydrocarbon gels (e.g., Plastibase (trade name), Bristol-Myers Squibb Company); higher fatty acids such as stearic acid; higher alcohols such as cetanol, octyldodecanol, and stearyl alcohol; polyethylene glycols (e.g
  • percutaneous absorption agent may also be added pharmaceutically acceptable additives for a percutaneous absorption agent, such as a solubilizing agent, an inorganic filler, a moisturizer, an antiseptic, a thickening agent, an antioxidant, and a cooling agent.
  • a solubilizing agent such as a solubilizing agent, an inorganic filler, a moisturizer, an antiseptic, a thickening agent, an antioxidant, and a cooling agent.
  • the percutaneous absorption agent may be a patch in which a liniment layer comprising GGA is integrated with a support that supports the layer.
  • Methods for preparing such a patch are well known, and examples thereof include a method described in the Japanese Pharmacopoeia.
  • the percutaneous absorption agent is also exemplified by a patch comprising a liniment layer that is a multilayer laminate in which constituent layers have successively increased level of GGA for the purpose of achieving sustained release of GGA.
  • the percutaneous absorption agent is also exemplified by a liniment comprising an emulsified particle encapsulating GGA.
  • This liniment can be prepared by mixing GGA with a surfactant (a phospholipid, a nonionic surfactant, etc.), water, and an oily base under agitation.
  • a surfactant a phospholipid, a nonionic surfactant, etc.
  • water a phospholipid, a nonionic surfactant, etc.
  • oily base include the above-described hydrocarbons, higher fatty acids, higher alcohols, polyalcohols, and fatty acid esters.
  • the percutaneous absorption agent is also exemplified by a dispersion in which a GGA suspension is dispersed in the form of microparticles in a hydrophobic polymer.
  • a hydrophobic polymer include, but are not limited to, a polylactic acid.
  • the percutaneous absorption agent comprises, in addition to GGA, a component that prevents or treats a retinal disease with a different mechanism of action from that of GGA. That is, the percutaneous absorption agent preferably comprises a combination of GGA and another component as active ingredients for preventing, ameliorating or treating a retinal disease.
  • Such components that prevent or treat a retinal disease with a different mechanism of action from that of GGA can be used alone or in combination of two or more thereof.
  • Examples of such a combination include, but are not limited to, combinations of GGA and a prostaglandin F2 ⁇ derivative, such as combinations of GGA and a prost drug (GGA and latanoprost, GGA and travoprost, GGA and tafluprost, etc.), combinations of GGA and a prostamide drug (GGA and bimatoprost, etc.), and combinations of GGA and a prostone drug (GGA and isopropyl unoprostone); combinations of GGA and a sympatholytic agent such as, combinations of GGA and a ⁇ -blocker (GGA and timolol maleate, GGA and gel-forming timolol, GGA and carteolol hydrochloride, GGA and gel-forming carteolol, etc.), combinations of GGA and a ⁇ -blocker (GGA and betaxolol hydrochloride, etc.), combinations of GGA and an ⁇ -blocker (GGA and levo
  • combinations of GGA and a prostaglandin F2 ⁇ derivative and combinations of GGA and a sympatholytic drug especially preferred are combinations of GGA and a ⁇ -blocker because these combinations exhibit a very high prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the percutaneous absorption agent can comprise a pharmacologically or physiologically active component other than the prophylactic, ameliorating or therapeutic component for a retinal disease.
  • pharmacologically or physiologically active component include decongestants, drugs for restoring extraocular muscle function, anti-inflammatory drugs or astringent drugs, antihistaminics or antiallergics, vitamins, amino acids, antibacterial drugs or bactericides, etc.
  • the GGA content of the percutaneous absorption agent is preferably 0.001% by weight or more, more preferably 0.01% by weight or more, further more preferably 0.1% by weight or more, relative to the total amount of the preparation.
  • the GGA content is preferably 80% by weight or less, more preferably 60% by weight or less, further more preferably 50% by weight or less. GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the GGA content of the percutaneous absorption agent is, for example, about 0.001 to 80% by weight, about 0.001 to 60% by weight, about 0.001 to 50% by weight, about 0.01 to 80% by weight, about 0.01 to 60% by weight, about 0.01 to 50% by weight, about 0.1 to 80% by weight, about 0.1 to 60% by weight, or about 0.1 to 50% by weight, relative to the total amount of the preparation.
  • the additives and the pharmacologically or physiologically active components other than GGA can be used alone or in combination of two or more thereof.
  • a suppository can be prepared by mixing GGA with a pharmaceutically acceptable base, for example, an acrylic polymer such as Carbopol and polycarbophil; a cellulose polymer such as hydroxypropyl cellulose and hydroxypropyl methylcellulose; a natural polymer such as sodium alginate and chitosan; a fatty acid wax; etc. in accordance with a known method, for example, a method described in the Japanese Pharmacopoeia.
  • a pharmaceutically acceptable base for example, an acrylic polymer such as Carbopol and polycarbophil
  • a cellulose polymer such as hydroxypropyl cellulose and hydroxypropyl methylcellulose
  • a natural polymer such as sodium alginate and chitosan
  • a fatty acid wax etc.
  • a pharmaceutically acceptable additive for a suppository for example, an antiseptic such as sodium benzoate, potassium sorbate, and paraben; a pH adjusting agent such as hydrochloric acid, citric acid, and sodium hydroxide; a stabilizer such as methionine; etc.
  • an antiseptic such as sodium benzoate, potassium sorbate, and paraben
  • a pH adjusting agent such as hydrochloric acid, citric acid, and sodium hydroxide
  • a stabilizer such as methionine
  • the suppository comprises, in addition to GGA, a component that prevents or treats a retinal disease with a different mechanism of action from that of GGA. That is, the suppository preferably comprises a combination of GGA and another component as active ingredients for preventing, ameliorating or treating a retinal disease.
  • Such components that prevent or treat a retinal disease with a different mechanism of action from that of GGA can be used alone or in combination of two or more thereof.
  • Examples of such a combination include, but are not limited to, combinations of GGA and a prostaglandin F2 ⁇ derivative, such as combinations of GGA and a prost drug (GGA and latanoprost, GGA and travoprost, GGA and tafluprost, etc.), combinations of GGA and a prostamide drug (GGA and bimatoprost, etc.), and combinations of GGA and a prostone drug (GGA and isopropyl unoprostone); combinations of GGA and a sympatholytic agent such as, combinations of GGA and a ⁇ -blocker (GGA and timolol maleate, GGA and gel-forming timolol, GGA and carteolol hydrochloride, GGA and gel-forming carteolol, etc.), combinations of GGA and a ⁇ 1-blocker (GGA and betaxolol hydrochloride, etc.), combinations of GGA and an ⁇ -blocker (GGA and le
  • combinations of GGA and a prostaglandin F2 ⁇ derivative and combinations of GGA and a sympatholytic drug especially preferred are combinations of GGA and a ⁇ -blocker because these combinations exhibit a very high prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the suppository can comprise a pharmacologically or physiologically active component other than the prophylactic, ameliorating or therapeutic component for a retinal disease.
  • pharmacologically or physiologically active component include decongestants, drugs for restoring extraocular muscle function, anti-inflammatory drugs or astringent drugs, antihistaminics or antiallergics, vitamins, amino acids, antibacterial drugs or bactericides, etc.
  • the GGA content of the suppository is preferably 0.001% by weight or more, more preferably 0.01% by weight or more, further more preferably 0.1% by weight or more, relative to the total amount of the preparation.
  • the GGA content is preferably 80% by weight or less, more preferably 60% by weight or less, further more preferably 50% by weight or less. GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the GGA content of the suppository is, for example, about 0.001 to 80% by weight, about 0.001 to 60% by weight, about 0.001 to 50% by weight, about 0.01 to 80% by weight, about 0.01 to 60% by weight, about 0.01 to 50% by weight, about 0.1 to 80% by weight, about 0.1 to 60% by weight, or about 0.1 to 50% by weight, relative to the total amount of the preparation.
  • the additives and the pharmacologically or physiologically active components other than GGA can be used alone or in combination of two or more thereof.
  • An inhalant is exemplified by a powder inhalant, a liquid inhalant, an aerosol, etc. Preparation methods therefor are well known.
  • a powder inhalant can be prepared by, for example, pulverizing GGA by a conventional method, and as needed mixing with an excipient such as lactose.
  • the powder inhalant can be administered with an inhalator such as Spinhaler (registered trade name).
  • a liquid inhalant can be prepared by, for example, adding GGA and as needed a pharmaceutically acceptable additive for a liquid inhalant to a pharmaceutically acceptable base such as purified water and water for injection, and dissolving them under stirring.
  • a pharmaceutically acceptable additive for a liquid inhalant include a tonicity agent such as sodium chloride, a buffering agent such as a borate buffering agent and a phosphate buffering agent, a preservative such as benzalkonium chloride, a thickening agent such as a carboxy vinyl polymer, etc.
  • the liquid inhalant is administered with an inhalator such as nebulizer (registered trade name).
  • An aerosol can be prepared by, for example, pulverizing GGA by a conventional method, adding a dispersant as needed, and filling them into a spray container with a propellant under cooling.
  • the propellant include a liquefied hydrofluoroalkane (HFA 134a (1,1,1,2-tetrafluoroethane: CH 2 FCF 3 ), HFA 227 (1,1,1,2,3,3,3-heptafluoropropane:
  • dispersant examples include a medium chain fatty acid triglyceride such as miglyol 812 (trademark) (Dynamit Nobel AG); soybean lecithin; etc.
  • the inhalant comprises, in addition to GGA, a component that prevents or treats a retinal disease with a different mechanism of action from that of GGA. That is, the inhalant preferably comprises a combination of GGA and another component as active ingredients for preventing, ameliorating or treating a retinal disease.
  • Such components that prevent or treat a retinal disease with a different mechanism of action from that of GGA can be used alone or in combination of two or more thereof.
  • Examples of such a combination include, but are not limited to, combinations of GGA and a prostaglandin F2 ⁇ derivative, such as combinations of GGA and a prost drug (GGA and latanoprost, GGA and travoprost, GGA and tafluprost, etc.), combinations of GGA and a prostamide drug (GGA and bimatoprost, etc.), and combinations of GGA and a prostone drug (GGA and isopropyl unoprostone); combinations of GGA and a sympatholytic agent such as, combinations of GGA and a ⁇ -blocker (GGA and timolol maleate, GGA and gel-forming timolol, GGA and carteolol hydrochloride, GGA and gel-forming carteolol, etc.), combinations of GGA and a ⁇ 1-blocker (GGA and betaxolol hydrochloride, etc.), combinations of GGA and an ⁇ -blocker (GGA and le
  • combinations of GGA and a prostaglandin F2 ⁇ derivative and combinations of GGA and a sympatholytic drug especially preferred are combinations of GGA and a ⁇ -blocker because these combinations exhibit a very high prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the inhalant can comprise a pharmacologically or physiologically active component other than the prophylactic, ameliorating or therapeutic component for a retinal disease.
  • pharmacologically or physiologically active component include decongestants, drugs for restoring extraocular muscle function, anti-inflammatory drugs or astringent drugs, antihistaminics or antiallergics, vitamins, amino acids, antibacterial drugs or bactericides, etc.
  • the GGA content of the inhalant is preferably 0.001% by weight or more, more preferably 0.01% by weight or more, further more preferably 0.1% by weight or more, relative to the total amount of the preparation.
  • the GGA content is preferably 80% by weight or less, more preferably 60% by weight or less, further more preferably 50% by weight or less. GGA in the above ranges is sufficient to exhibit the prophylactic, ameliorating or therapeutic effect for a retinal disease.
  • the GGA content of the inhalant is, for example, about 0.001 to 80% by weight, about 0.001 to 60% by weight, about 0.001 to 50% by weight, about 0.01 to 80% by weight, about 0.01 to 60% by weight, about 0.01 to 50% by weight, about 0.1 to 80% by weight, about 0.1 to 60% by weight, or about 0.1 to 50% by weight, relative to the total amount of the preparation.
  • the additives and the pharmacologically or physiologically active components other than GGA can be used alone or in combination of two or more thereof.
  • the agent of the present invention may be a kit comprising separate compositions: a composition comprising GGA and a composition comprising a pharmacologically or physiologically active component other than GGA; or may be a composition comprising all the components in a single dosage form.
  • the agent of the present invention may also be a kit comprising separate compositions: a composition comprising GGA and a composition comprising a particular additive.
  • compositions may be separately packed into different containers, or may be packed into a container that allows mixing at the time of use (compositions to be prepared at the time of use).
  • any number e.g., two, three, etc.) of dosage forms may be contained.
  • the agent of the present invention is a kit comprising separate compositions: a composition comprising GGA and a composition comprising another component (including the above cases of a kit comprising compositions separately packed into different containers and a kit comprising compositions to be prepared at the time of use), the GGA content described above for each type of preparation is the percentage relative to the total amount of the mixed compositions.
  • a target retinal disease of the present invention may be any retinal disease as long as it is a disease involving the degeneration, impairment or destruction of a constituent cell of the retina, or a disease resulting from the degeneration, impairment or destruction of a constituent cell of the retina.
  • Examples of these diseases include glaucoma, retinitis pigmentosa, age-related macular degeneration, diabetic retinopathy, retinal detachment, diabetic maculopathy, hypertensive retinopathy, retinal vascular occlusion (retinal artery occlusion; retinal vein occlusion such as central retinal vein occlusion and branch retinal vein occlusion; etc.), retinal arteriosclerosis, retinal tear, retinal hole, macular hole, ophthalmorrhagia, posterior vitreous detachment, pigmented paravenous retinochoroidal atrophy, gyrate atrophy of the retina and choroid, choroideremia, crystalline retinopathy, retinitis punctata albescens, corneal dystrophy, cone dystrophy, central areolar choroidal dystrophy, Doyne's honeycomb retinal dystrophy, vitelliform macular dystrophy, cystoid macular edema,
  • glaucoma glaucoma
  • retinitis pigmentosa age-related macular degeneration
  • diabetic retinopathy diabetic retinopathy
  • glaucoma glaucoma
  • the target disease of the present invention also includes a disease involving the impairment of any constituent cell of the retina, and a disease resulting from the impairment of any constituent cell of the retina.
  • the constituent cells of the retina include retinal ganglion cells, amacrine cells, horizontal cells, Muller glial cells, bipolar cells, retinal visual cells (cones and rods), retinal pigment epithelial cells, etc.
  • Especially suitable target is a disease involving or resulting from the impairment of retinal ganglion cells or retinal pigment epithelial cells.
  • the target disease of the present invention also includes a disease involving or resulting from the impairment of any of the constituent layers of the retina, i.e., the inner limiting membrane, the nerve fiber layer, the ganglion cell layer, the inner plexiform membrane, the inner nuclear layer, the outer plexiform layer, the outer nuclear layer, the external limiting membrane, the visual cell layer, and the retinal pigment epithelium layer.
  • the target patient to whom the present invention is suitably applied is a patient with the above retinal disease.
  • GGA contained in the agent of the present invention protects a retinal cell, i.e., promotes the survival of a retinal cell or inhibiting the degeneration, impairment or destruction of a retinal cell, thereby preventing, ameliorating or treating a retinal disease.
  • the present invention encompasses a protective agent for a retinal cell, a promoting agent for the survival of a retinal cell, or a suppressing agent for the degeneration, impairment or destruction of a retinal cell, these agent comprising, as an active ingredient, GGA which
  • (a) is a mixture of the all-trans form and the mono-cis form (in particular the 5Z-mono-cis form), the all-trans form content of the mixture being 80% by weight or more
  • (b) consists of the all-trans form
  • (c) consists of the 5Z-mono-cis form
  • (d) is a mixture of the all-trans form and the mono-cis form (in particular the 5Z-mono-cis form), the mono-cis form content of the mixture being very high.
  • Particularly suitable target retinal cells of these agents are as described above.
  • the components, dose, properties, dosage form, etc. of the preparations are as described for the prophylactic, ameliorating or therapeutic agent for a retinal disease of the present invention.
  • prophylactic is understood to include preventing or delaying the onset of a disease and reducing the incidence
  • aborating and therapeutic are understood to include reducing the symptoms, suppressing the progress of the symptoms, and leading to remission or cure.
  • the eye drop comprising GGA in the above concentration ranges is instilled, for example, about 1 to 5 times a day, preferably about 1 to 3 times a day, in an amount of about 1 to 2 drops each time.
  • eye washing is performed, for example, about 1 to 10 times a day, preferably about 1 to 5 times a day, each time using about 1 to 20 mL of the eye wash comprising GGA in the above concentration ranges.
  • the agent of the present invention is an ophthalmic ointment
  • the ophthalmic ointment comprising GGA in the above concentration ranges is applied to the eye, for example, about 1 to 5 times a day, preferably about 1 to 3 times a day, in an amount of about 0.001 to 5 g each time.
  • the intraocular injection comprising GGA in the above concentration ranges is injected, for example, about 1 to 3 times per day to 14 days, preferably once per day to 14 days, in an amount of about 0.005 to 1 mL each time.
  • the agent of the present invention is a contact lens solution (a washing solution, a storage solution, a sterilizing solution, a multipurpose solution, package solution, etc.), a preservative for a harvested ocular tissue (a cornea etc.) for transplantation, or an irrigating solution for surgery
  • a contact lens solution a washing solution, a storage solution, a sterilizing solution, a multipurpose solution, package solution, etc.
  • a preservative for a harvested ocular tissue (a cornea etc.) for transplantation or an irrigating solution for surgery
  • a composition comprising GGA in the above concentration ranges is used in a usual dosage and regimen of such a type of preparation.
  • the agent of the present invention is a sustained-release contact lens preparation
  • the contact lens comprising GGA in the above amount is replaced with a fresh one, for example, about 1 to 3 times per day to 14 days, preferably once per day to 14 days.
  • the agent of the present invention is a sustained-release intraocular implant, about 1 to 14 days after the implantation of the implant comprising GGA in the above amount, a fresh one is implanted as needed.
  • the daily dosage of GGA is preferably 50 ng or more, more preferably 500 ng or more, further more preferably 5 ⁇ g or more.
  • the daily dosage of GGA is preferably 50 mg or less, more preferably 20 mg or less, further more preferably 10 mg or less.
  • the daily dosage of GGA is, for example, about 50 ng to 50 mg, about 50 ng to 20 mg, about 50 ng to 10 mg, about 500 ng to 50 mg, about 500 ng to 20 mg, about 500 ng to 10 mg, about 5 ⁇ g to 50 mg, about 5 ⁇ g to 20 mg, or about 5 ⁇ g to 10 mg.
  • the daily dosage of GGA is preferably about 0.1 mg or more, more preferably about 1 mg or more, further more preferably about 5 mg or more.
  • the daily dosage of GGA is preferably about 5000 mg or less, more preferably about 1000 mg or less, further more preferably about 500 mg or less.
  • the daily dosage of GGA is, for example, preferably about 0.1 to 5000 mg, more preferably about 1 to 1000 mg, further more preferably about 5 to 500 mg.
  • the daily dosage is divided into, for example, about 1 to 5 administrations, preferably about 1 to 3 administrations.
  • the administration period varies depending on the type and stage of the disease, the age, weight, and sex of the patient, the route of administration, etc., and can be selected as appropriate, for example, from the range from about one day to 30 years.
  • the retinal disease may be prevented for, ameliorated in or cured in an administration period of about 1 to 20 years, especially as short as 1 to 10 years.
  • the retinal protective action exhibited by the ophthalmic composition of the present invention suppresses the progress of a retinal disease, the administration can be further continued.
  • the present invention includes
  • a method for preventing, ameliorating or treating a retinal disease comprising the step of administering to a patient with a retinal disease an effective amount of the GGA described in the following (a), (b), (c) or (d), thereby preventing, ameliorating or treating the retinal disease
  • a method for suppressing the degeneration, impairment or destruction of a retinal cell comprising the step of administering to a patient with a retinal disease an effective amount of the GGA described in the following (a), (b), (c) or (d), thereby suppressing the degeneration, impairment or destruction of a retinal cell
  • a method for protecting a retinal cell comprising the step of administering to a patient with a retinal disease an effective amount of the GGA described in the following (a), (b), (c) or (d), thereby protecting a retinal cell: (a) a mixture of the all-trans form and the mono-cis form (in particular the 5
  • GGA is administered in any of the preparation forms of the present invention described above.
  • the administration method varies depending on the dosage forms and examples of the administration method include ocular instillation, eye washing, application to the eye, spray to the eye, implantation to the eye, wearing a contact lens, injection (injection into the eye, for example, injection into the vitreous body etc., intravenous injection, hypodermic injection, intramuscular injection), oral administration, transdermal administration, insertion into the rectum, inhalation, etc.
  • the agent is administered to the eye.
  • the target disease, the target patient and the type of retinal cells to be targeted are as described for the agent of the present invention.
  • Test samples were prepared as follows.
  • the test substances were four types of GGAs that contain the all-trans form and the 5Z-mono-cis form at a weight ratio of 10:0, 8:2, 6:4, and 0:10, respectively.
  • An amount of 100 mg of each GGA and 0.25 mg of DL- ⁇ -tocopherol acetate (Wako Pure Chemical Industries) as an antioxidant were weighed out and dissolved in 789 mg of 100% ethanol.
  • a base was prepared in the same manner as described above except that GGA was not used.
  • Each of the GGAs having a weight ratio of 10:0, 8:2, and 6:4 dissolved in 789 mg of 100% ethanol was diluted with a high-glucose (4.5 g/L) Dulbecco's modified Eagle's basal medium (DMEM) supplemented with 10% (v/v) horse serum (DS Pharma Biomedical) and 5% (v/v) fetal calf serum (Daiichi Pure Chemicals) to a concentration adjusted so that the all-trans form content was substantially 30 ⁇ M.
  • the GGA having a weight ratio of 0:10 containing only the 5Z-mono-cis form was also diluted so that the concentration was 30 ⁇ M.
  • the base was diluted by the same dilution factor as that for the GGA having a weight ratio of the all-trans form: the 5Z-mono-cis form of 6:4.
  • PC12 purchased from DS Pharma Biomedical
  • IWAKI collagen IV coated 96-well microplate
  • the supernatant of the cell culture was removed and replaced with the previously prepared DMEMs containing the GGAs and incubation was performed under 5% CO 2 at 37° C. for 2 hours.
  • the medium was replaced with a low-glucose (1.0 g/L) DMEM supplemented with 2% horse serum and 1% fetal calf serum, the oxygen condition was changed to zero percent O 2 using Anaeropack 5% (Mitsubishi Gas Chemical), and incubation was performed under 5% CO 2 and the low oxygen condition at 37° C. for 8 hours.
  • FIG. 1 The results are shown in FIG. 1 .
  • the GGA-treated groups showed significantly higher cell viabilities at all weight ratios than that of the base-treated group.
  • the GGAs having a weight ratio of the all-trans form: the 5Z-mono-cis form of 10:0, 8:2, and 0:10 showed significantly higher cytoprotective effects than that of the GGA having a weight ratio of 6:4.
  • n 10, *: P ⁇ 0.05, **: P ⁇ 0.01, by Tukey-Kramer test. No significant difference was observed among 8:2, 10:0, and 0:10.
  • the harvested retinal tissue was transferred to a centrifugation tube containing 5 mL of a basal medium for neuronal cells (Neurobasal, Invitrogen) containing 100 U/mL penicillin, 100 ⁇ g/mL streptomycin, a neural cell culture supplement (B27TM-Supplement, Invitrogen), 1 ⁇ L-cysteine (Kyowa Hakko Bio) and 15 U/mL papain (Sigma Aldrich) and incubated at 37° C. for 30 minutes. Thirty minutes later, the supernatant was removed and the tissue was washed twice with Neurobasal containing 100 U/mL penicillin, 100 ⁇ g/mL streptomycin, and B27TM-Supplement.
  • Neurobasal containing 100 U/mL penicillin, 100 ⁇ g/mL streptomycin, and B27TM-Supplement.
  • Neurobasal After washing, 2 mL of Neurobasal was added, the tissue was divided into small cell masses by pipetting with a dry-heat sterilized Pasteur pipette (Hilgenberg), and transferred to 50 mL of Neurobasal that was prepared in advance.
  • Hilgenberg a dry-heat sterilized Pasteur pipette
  • the cell suspension was filtered through a 40 ⁇ m nylon mesh cell strainer (Japan BD) for removal of aggregated cell masses.
  • the obtained cells were seeded onto a poly-D-lysine/laminin coated 6-well plate (Japan BD) and incubated under 5% CO 2 at 37° C.
  • the test substances were two types of GGAs: GGA consists of the all-trans form, and GGA contains the all-trans form and the 5Z-mono-cis form at a weight ratio of 6:4.
  • An amount of 100 mg of each GGA and 0.25 mg of DL- ⁇ -tocopherol acetate (Wako Pure Chemical Industries) as an antioxidant were weighed out and dissolved in 789 mg of 100% ethanol.
  • a base was prepared in the same manner as described above except that GGA was not used.
  • the concentration of each of the GGAs having a weight ratio of 10:0 and 6:4 dissolved in 789 mg of 100% ethanol was adjusted so that the all-trans form content was substantially 3 ⁇ M.
  • the base was diluted by the same dilution factor as that for the GGA of 6:4. Each of the GGAs and the base were then added to the cell culture supernatant 2 hours after cell seeding and incubation was performed under 5% CO 2 at 37° C. for 48 hours.
  • the cell culture supernatant was removed and the cells were fixed with a 4% paraformaldehyde phosphate buffer solution (Wako Pure Chemical Industries) and 100% methanol (Wako Pure Chemical Industries) at room temperature for 30 minutes.
  • the cells were washed with phosphate buffer (PBS) (Kohj in Bio) and blocking was performed with PBS containing 2% (w/v) bovine serum albumin (Sigma Aldrich) and 0.05% (v/v) Tween 20 (Sigma Aldrich) at room temperature for 30 minutes.
  • PBS phosphate buffer
  • ⁇ III tubulin antibody Promega diluted to 1000-fold in PBS was added to each well and incubation was performed at room temperature for 2 hours. Two hours later, the diluted antibody solution was removed and washing with PBS was performed 3 times. Then, 1 mL of Alexa Fluor 488 goat anti-mouse antibody (Invitrogen) diluted to 1000-fold in PBS was added to each well and incubation was performed at room temperature for 1 hour. One hour later, the diluted antibody solution was removed, washing with PBS was performed 3 times, and 3 mL of PBS was added to each well.
  • Alexa Fluor 488 goat anti-mouse antibody Invitrogen
  • the results are shown in FIG. 2 .
  • FIG. 3 Typical observation images of the fluorescence stained rat RGC are shown in FIG. 3 .
  • the group treated with GGA of 10:0 showed a significant neurite inducing effect as compared with the group treated with GGA of 6:4.
  • oxidative stress in ophthalmologic diseases has been widely reported. Such involvement has been observed in, in addition to glaucoma and cataract, retinal diseases such as retinal diseases due to diabetes, hypertension, hyperlipemia, etc., age-related macular degeneration, retinopathy of prematurity, retinal vascular occlusion, retinal light damage, etc. (Nippon Ganka Gakkai Zasshi. 112, 22-29 (2008)).
  • the retinal pigment epithelium exists in an environment in which reactive oxygen easily generates (Invest Opthalmol V is Sci. 2006 July 47(7): 3164-3177.).
  • the cytoprotective effect of GGA against oxidative stress by hydrogen peroxide was examined using a human-derived retinal pigment epithelial cell line, ARPE-19.
  • test substances were three types of GGAs that contain the all-trans form and the 5Z-mono-cis form at a weight ratio of 10:0, 8:2, and 6:4, respectively, and with the use of these test substances, test solutions were prepared as follows. An amount of 100 mg of each GGA and 0.25 mg of DL- ⁇ -tocopherol acetate (Wako Pure Chemical Industries) as an antioxidant were weighed out and dissolved in 789 mg of 100% ethanol. A base was prepared in the same manner as described above except that GGA was not used.
  • Each of the GGAs having a weight ratio of 10:0, 8:2, and 6:4 dissolved in 100% ethanol was diluted with a Dulbecco's modified Eagle's basal medium/Ham's-F12 mixed liquid medium (1:1) (DMEM/F-12, Invitrogen) supplemented with 10% (v/v) fetal calf serum (Daiichi Pure Chemicals) to a concentration adjusted so that the all-trans form content was substantially 280 ⁇ M.
  • the base was diluted by the same dilution factor as that for the GGA of 6:4. The above diluted solutions were used as test solutions.
  • ARPE-19 purchased from ATCC was seeded onto a 96-well microplate (CORNING) at 1.5 ⁇ 10 4 cells/100 ⁇ L per well and incubated in the DMEM/F-12 described above under 5% CO 2 at 37° C. for 48 hours.
  • a DMEM/F-12 supplemented with 750 ⁇ M hydrogen peroxide was prepared by adding hydrogen peroxide for precision analysis (Wako Pure Chemical Industries) to a DMEM/F-12.
  • the cell culture supernatant was removed and 200 ⁇ L of phosphate buffer (PBS, Kohj in Bio) was added to each well.
  • PBS phosphate buffer
  • PBS was promptly removed and replaced with the previously prepared DMEM/F-12 supplemented with hydrogen peroxide, and incubation was performed under 5% CO 2 at 37° C. for 2 hours.
  • PBS was replaced with a DMEM/F-12 not containing hydrogen peroxide.
  • the results are shown in FIG. 4 .
  • the GGA-treated groups showed higher cell viabilities at all weight ratios than that of the base-treated group.
  • TNF- ⁇ acts on the retinal pigment epithelium and its peripheral tissue, and the cells subsequently produce a variety of cytokines and cause inflammation (Mol. Vis. 2008 14: 2292-303).
  • Atypical cytokine that is involved in neutrophil migration and spreads inflammation is interleukin-8 (IL-8).
  • IL-8 interleukin-8
  • test substances were two types of GGAs: GGA consists of the all-trans form, and GGA contains the all-trans form and the 5Z-mono-cis form at a weight ratio of 6:4.
  • test solutions were prepared as follows. An amount of 100 mg of each GGA and 0.25 mg of DL- ⁇ -tocopherol acetate as an antioxidant were weighed out and dissolved in 789 mg of 100% ethanol. A base was prepared in the same manner as described above except that GGA was not used.
  • Each of the GGAs which were the GGA consisting of the all-trans form and the GGA containing the all-trans form and the 5Z-mono-cis form at a weight ratio of 6:4, dissolved in 789 mg of 100% ethanol was diluted with a DMEM/F-12 to a concentration adjusted so that the all-trans form content was substantially 50 ⁇ M.
  • the base was diluted by the same dilution factor as that for the GGA having a weight ratio of the all-trans form: the 5Z-mono-cis form of 6:4.
  • the above diluted solutions were used as test solutions.
  • ARPE-19 was seeded onto a 96-well microplate (CORNING) at 2.5 ⁇ 10 4 cells/100 ⁇ L per well and incubated in a DMEM/F-12 supplemented with 10% (v/v) fetal calf serum under 5% CO 2 at 37° C. for 24 hours.
  • CORNING 96-well microplate
  • the stored cell culture supernatant was allowed to warm to room temperature, and the IL-8 concentration was quantified with Human CXCL8/IL-8 Quantikine ELISA Kit (R&D Systems). The procedure was performed in accordance with the instruction manual attached to the kit and the measured absorbance was corrected by dividing it by the cell viability. The measurement of the absorbance was performed using a microplate reader (VersaMax, Molecular Devices) at a measurement wavelength of 450 nm and a correction wavelength of 540 nm (temperature in the chamber: 20 to 25° C.). The IL-8 concentration of each treatment group was obtained by calculating an IL-8 concentration corresponding to the corrected measured value and subtracting, from it, the IL-8 concentration of the non-treated group as a background.
  • NMDA glutamate analogue
  • Test Examples 1 to 3 are shown in Table 1 and the constitution of the base used in each tests are shown in Table 2.
  • Example 2 Gum arabic 5.000 — — ⁇ -tocopherol 0.200 — — Boric acid — 1.300 1.300 Borax — 0.400 0.400 Polysorbate 80 — 2.000 2.000 POE hydrogenated — 2.000 2.000 castor oil 60 POE castor oil — 0.100 0.100 Dibutylhydroxytoluene — 0.005 0.005 Purified water q.s. q.s. q.s.
  • the eyeballs were harvested, fixed with half Karnovsky's fixative for 24 hours, embedded in paraffin, thin sectioned and stained with hematoxylin-eosin (HE) to prepare histopathological sections.
  • the histological sections were observed under an optical microscope and the thickness ( ⁇ m) of the inner plexiform layer (IPL) of the retina was measured. From the thickness of the inner plexiform layer (IPL) of the retina, the neuroprotective effects of the test preparations were evaluated.
  • Test Example 1 The results of Test Example 1 are shown in FIG. 6 .
  • the all-trans form and the 5Z-mono-cis form showed significant neuroprotective effects against nerve damage by NMDA as compared with the base (*p ⁇ 0.05, ** ⁇ 0.01, by Dunnett's multiple comparison test).
  • Test Example 2 The results of Test Example 2 are shown in FIG. 7 .
  • the all-trans form and the 5Z-mono-cis form showed significant neuroprotective effects against nerve damage by NMDA as compared with the base (***p ⁇ 0.001, by Tukey-Kramer multiple comparison test).
  • AIPHAGAN trade name
  • Ophthalmic Solution 0.1% (Senju Pharmaceutical), which is considered to have a neuroprotective effect
  • the all-trans form showed a significantly superior neuroprotective effect (*p ⁇ 0.05, by Tukey-Kramer multiple comparison test).
  • Test Example 3 The results of Test Example 3 are shown in FIG. 9 .
  • the all-trans form showed a significant neuroprotective effect against nerve damage by NMDA as compared with the base (*p ⁇ 0.05, by t-test).
  • the GGA content was calculated by summing the amounts of the all-trans form and the 5Z-mono-cis form.
  • Detector ultraviolet absorption spectrometer (measurement wavelength: 210 nm)
  • Injection volume 5 ⁇ L of 0.05 g/100 mL sample
  • a 10 mL clear glass container (Nichiden-Rika Glass) was completely filled with each of the prepared eye drops (so that no air space remained). After sealing of the container, the eye drops were stored at 4° C. Immediately after the preparation and after stored at 4° C. for three days, 0.2 mL of each eye drop was transferred to wells of a 96-well plate (flat bottom, polystyrene) with a glass graduated pipette, and the absorbance was measured at 660 nm with a microplate reader (VersaMax, Molecular Devices) (temperature in the chamber: 20 to 25° C.). As referred to in JIS K0101 (Testing methods for industrial water, measurement of turbidity by light transmission), the absorbance at 660 nm of each sample was used as the indicator for white turbidity (the degree of turbidity).
  • the test procedure was carried out quickly. Before the test procedure was carried out, it was confirmed that the loss of the GGA content did not occur during the storage at 4° C. or the measurement of absorbance.
  • Example 6 (water) All-trans form 0.05 — — — — — — All-trans form: — 0.05 — — — 5Z-mono-cis form weight ratio (9:1) All-trans form: — — 0.05 — — — 5Z-mono-cis form weight ratio (8:2) All-trans form: — — — — 0.05 — — 5Z-mono-cis form weight ratio (7:3) All-trans form: — — — — 0.05 — 5Z-mono-cis form weight ratio (6:4) Sodium dihydrogen 0.30 0.30 0.30 0.30 0.30 — phosphate dihydrate Disodium hydrogen 3.20 3.20 3.20 3.20 3.20 — — phosphate dodecahydrate Polysorbate 80 0.25 0.25 0.25 0.25 — Hydrochloric acid q.s.
  • Example 7 Example 8 (water) All-trans form 0.05 — — — — — — All-trans form: — 0.05 — — — — 5Z-mono-cis form weight ratio (9:1) All-trans form: — — 0.05 — — — 5Z-mono-cis form weight ratio (8:2) All-trans form: — — — — 0.05 — — 5Z-mono-cis form weight ratio (7:3) All-trans form: — — — — 0.05 — 5Z-mono-cis form weight ratio (6:4) Boric acid 1.30 1.30 1.30 1.30 1.30 1.30 — Borax 0.40 0.40 0.40 0.40 0.40 — Polysorbate 80 0.25 0.25 0.25 0.25 — Hydrochloric acid q.s.
  • Example 10 (water) All-trans form 0.05 — — — — — All-trans form: — 0.05 — — — 5Z-mono-cis form weight ratio (8:2) All-trans form: — — 0.05 — — 5Z-mono-cis form weight ratio (7:3) All-trans form: — — — — 0.05 — 5Z-mono-cis form weight ratio (6:4) Sodium dihydrogen 0.30 0.30 0.30 0.30 — phosphate dihydrate Disodium hydrogen 3.20 3.20 3.20 3.20 — — phosphate dodecahydrate Polysorbate 80 0.35 0.35 0.35 — Hydrochloric acid q.s.
  • Table 7 revealed that white turbidity after storage at 4° C. was significantly reduced in the eye drops containing the all-trans form in an amount of 80% by weight or more.
  • the preparation of eye drops and the measurement of the GGA concentration were performed in the same manner as in “(7) White turbidity reduction test at low temperature storage” except that filtration in the preparation of the eye drops was not performed due to high concentration of GGA.
  • the constitutions of the eye drops are shown in Table 9.
  • a 10 mL clear glass container (Nichiden-Rika Glass) was completely filled with the prepared eye drops (so that no air space remained). After sealing of the container, the eye drops were stored at room temperature (about 25° C.). After stored for three days, 0.2 mL of each of the eye drops was transferred to wells of a 96-well plate (flat bottom, polystyrene) with a glass graduated pipette, and the absorbance was measured at 660 nm with a microplate reader (VersaMax, Molecular Devices) (temperature in the chamber: 20 to 25° C.). As referred to in JIS K0101 (Testing methods for industrial water, measurement of turbidity by light transmission), the absorbance at 660 nm of each sample was used as the indicator for white turbidity (the degree of turbidity).
  • Example 12 Water All-trans form 3.000 — 1.000 — — All-trans form: — 3.000 — 1.000 — 5Z-mono-cis form weight ratio (6:4) Sodium dihydrogen 1.300 1.300 1.300 1.300 — phosphate dihydrate Disodium hydrogen 0.400 0.400 0.400 0.400 — phosphate dodecahydrate POE castor oil 0.300 0.300 0.100 0.100 — POE hydrogenated 6.000 6.000 2.000 2.000 — castor oil 60 Polysorbate 80 6.000 6.000 2.000 2.000 — Hydrochloric acid q.s. q.s. q.s. — Sodium hydroxide q.s.
  • a surfactant polysorbate 80, POE castor oil
  • teprenone and the all-trans form were separately added and dissolved under stirring in a hot water bath at 65° C. for 2 minutes.
  • Water at 65° C. was added and each buffer was added under stirring to give a homogeneous solution.
  • the pH and osmotic pressure were adjusted with hydrochloric acid and/or sodium hydroxide.
  • This resulting solution was filtered through a membrane filter with a pore size of 0.2 ⁇ m (bottle top filter, Thermo Fisher Scientific) to give a clear sterile eye drop.
  • the constitutions of the eye drops are shown in Table 10 below.
  • Each of the eye drops was filled into a polyethylene terephthalate container (8 mL) in an aseptic manner.
  • Example 13 All-trans form 0.05 — All-trans form:5Z-mono-cis form — 0.05 weight ratio (6:4) Boric acid 1.30 1.30 Borax 0.40 0.40 POE castor oil 0.02 0.02 Polysorbate 80 0.50 0.50 Hydrochloric acid q.s. q.s. Sodium hydroxide q.s. q.s. Purified water q.s. q.s. pH 7.5 7.5 Osmotic pressure mOsm 240 240 Immediately after instillation 19.3 37.3 VAS mean (%) 3 minutes after instillation 19.7 31.7 VAS mean (%)
  • the stability test was performed by leaving them to stand in the upright position at 40° C., 50° C., or 60° C. for 10 days or 20 days.
  • the total amount of the all-trans form and the mono-cis form in the reference standard were calculated as the GGA content.
  • Residual ratio (%) 100 ⁇ [all-trans form content after being left to stand for predetermined period of time (g/100 mL)/all-trans form content immediately after production (g/100 mL)]
  • the eye drops containing the phosphate buffering agents showed clearly higher residual ratios of the all-trans form and thus more excellent in the thermal stability, as compared with the eye drop containing the borate buffering agents.
  • the eye drops having higher pH values showed higher residual ratios of the all-trans form and thus more excellent in the thermal stability.
  • Each eye drop was subjected to light irradiation under the following conditions.
  • the all-trans form content in each sample was quantified immediately after the production and after the irradiation and the residual ratio (%) was calculated.
  • Irradiation equipment LTL-200A-15WCD (Nagano Science)
  • Light source D-65 lamp
  • Direction of light irradiation the light was irradiated from the top to the container left to stand in the upright position on the spinning disk of the equipment.
  • Residual ratio (%) 100 ⁇ [all-trans form content after light irradiation (g/100 mL)/all-trans form content immediately after production (g/100 mL)]
  • Example Example Example g/100 mL 22 23 24 25 All-trans form 0.005 0.05 0.005 0.05 Sodium dihydrogen 0.30 0.30 — — phosphate dihydrate Disodium hydrogen 3.20 3.20 — — phosphate dodecahydrate Boric acid — — 1.30 1.30 Borax — — 0.40 0.40 POE castor oil 0.002 0.02 0.002 0.02 Polysorbate 80 0.050 0.50 0.050 0.50 0.50 Hydrochloric acid q.s. q.s. q.s. q.s. Sodium hydroxide q.s. q.s. q.s. q.s. Purified water q.s. q.s. q.s. q.s. pH 7.5 7.5 7.5 Osmotic pressure 260 260 240 240 mOsm Residual ratio (%) 90.5 92.8 86.1 89.0
  • the eye drops containing the phosphate buffering agents showed clearly higher residual ratios of the all-trans form and thus more excellent in the light stability, as compared with the eye drops containing the borate buffering agents.
  • SCL ACUVUE OASIS (Johnson & Johnson, approval number: 21800BZY10252000, base curve: 8.4 mm, diameter: 14.0 mm, power: ⁇ 3.00 D) was immersed in 4 mL of each eye drop (immersion solution) and left to stand in the upright position at 25° C. for 14 hours.
  • Each SCL had been initialized before use through immersion in 10 mL of physiological saline (Otsuka Normal Saline) overnight after being taken out from the package solution.
  • the eye drops containing the phosphate buffering agents showed clearly reduced adsorption of GGA to contact lenses, as compared with the eye drops containing the borate buffering agents.
  • the agent of the present invention is excellent in the prophylactic, ameliorating or therapeutic effect for a retinal disease and is also excellent as a preparation having advantages such that white turbidity after low temperature is reduced, etc.

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