US20070202057A1 - Disintegrable oral films - Google Patents

Disintegrable oral films Download PDF

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Publication number
US20070202057A1
US20070202057A1 US11/675,822 US67582207A US2007202057A1 US 20070202057 A1 US20070202057 A1 US 20070202057A1 US 67582207 A US67582207 A US 67582207A US 2007202057 A1 US2007202057 A1 US 2007202057A1
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film
nicotine
disintegrable
oral
disintegrable oral
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US11/675,822
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Christopher Fankhauser
Greg Slominski
Stephan Meyer
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Novartis AG
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Individual
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Priority to US11/675,822 priority Critical patent/US20070202057A1/en
Publication of US20070202057A1 publication Critical patent/US20070202057A1/en
Assigned to NOVARTIS AG reassignment NOVARTIS AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MEYER, STEPHAN, FANKHAUSER, CHRISTOPHER EDWARD, SLOMINSKI, GREG
Priority to US13/329,390 priority patent/US8871243B2/en
Priority to US14/522,795 priority patent/US20150111928A1/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
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/465—Nicotine; Derivatives thereof
    • 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
    • A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
    • A61K47/10—Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
    • 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
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • 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
    • A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/36—Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
    • A61K47/38—Cellulose; Derivatives thereof
    • 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
    • A61K9/0056—Mouth soluble or dispersible forms; Suckable, eatable, chewable coherent forms; Forms rapidly disintegrating in the mouth; Lozenges; Lollipops; Bite capsules; Baked products; Baits or other oral forms for animals
    • 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
    • A61K9/006—Oral mucosa, e.g. mucoadhesive forms, sublingual droplets; Buccal patches or films; Buccal sprays
    • 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
    • A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7007—Drug-containing films, membranes or sheets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P25/00—Drugs for disorders of the nervous system
    • A61P25/30—Drugs for disorders of the nervous system for treating abuse or dependence
    • A61P25/34—Tobacco-abuse

Definitions

  • the present invention relates to disintegrable oral films for the delivery and release of an active agent into the oral cavity.
  • the invention relates to a slow disintegrating oral film containing a nicotine active for delivery and release into the oral cavity.
  • the slow disintegrating oral film maximizes the absorption of the nicotine active through the oral mucosa to alleviate cravings for nicotine.
  • Smoking of tobacco products such as cigarettes, cigars, and pipe tobacco, presents serious health risks to the tobacco user. Additionally, the use of smoke-less tobacco products, such as chewing tobacco (both short and broad leaf tobacco) and snuff, can also result in serious health risks to the user.
  • Nicotine replacement therapies have been developed and are provided in a variety of product forms. Such nicotine replacement products include, for example, nicotine containing gums, nicotine containing inhalers, nicotine containing transdermal patches, nicotine containing lozenges, and nicotine containing lollipops. Nicotine containing gums, lozenges and patches have enjoyed substantial commercial success.
  • the nicotine containing gums are generally supplied as individual pieces of chewable gum. The user removes an individual piece of the nicotine containing gum from the package and places it into the oral cavity. While the user is chewing the gum, nicotine is released from the gum and is absorbed by the oral mucosa. The nicotine containing gums, however, must be used at regular intervals in order to maintain steady levels of nicotine in the blood.
  • Nicotine containing gums may be used to relieve acute cravings experienced by a tobacco user that is attempting to quit smoking or smoke-less tobacco product use. For example, a single piece of gum may be self-administered by an individual in response to an acute nicotine craving. Such use of the nicotine gum typically results in an increase in blood nicotine levels to counteract the nicotine cravings. The tobacco user must repeatedly self-administer nicotine containing gums to maintain steady nicotine levels in the blood.
  • the nicotine transdermal patches include, for example, NICODERM, NICOTROL, and HABITROL.
  • the nicotine transdermal patches are generally supplied as a patch having an adhesive backing covered by a release liner to protect the adhesive. The user of the patch removes the release liner from the patch to expose the adhesive backing. The adhesive backing is then applied to a suitable location on the dermis of the user, thereby adhering the patch to the user. Over time, nicotine is released from the patch and diffuses through the dermis and into the blood.
  • the nicotine containing transdermal patches are useful for maintaining relatively steady blood level concentrations over time by providing the user with a substantially continuous infusion of nicotine while the patch is being worn.
  • Nicotine containing lozenges may be utilized in a similar manner as nicotine containing gums to provide relief from acute nicotine cravings.
  • Commercially available nicotine containing lozenges include, for example, those lozenges sold under the trademarks COMMITS, STOPPERS, NIQUITIN, and NICOTINELLS. Similar to the nicotine containing gums, a tobacco user, instead of choosing to use a tobacco product, may self-administer a nicotine containing lozenge to alleviate a nicotine craving.
  • Films for delivering a pharmacologically or cosmetically active agent via the oral cavity have been developed.
  • the films generally comprise water soluble films that disintegrate in the oral cavity and release the active agent that is incorporated the film. Nicotine has been incorporated into water soluble films, which upon disintegration of the film, releases nicotine into the oral cavity.
  • the prior art has focused on water soluble thin films for achieving rapid disintegration or dissolution in the oral cavity, in order to alleviate acute nicotine cravings. For these rapidly disintegrating films, studies estimate that systemic absorption of the nicotine active is merely 25% of the total amount of the nicotine active initially present in the oral film dosage unit.
  • An oral film for delivering and releasing an active agent into the oral cavity is provided.
  • the composition of the oral film provides a mucoadhesive film having a delayed or slow disintegration and release of active agent from the film.
  • the rate of disintegration of the film and release of the active agent from the film within the conditions of the oral cavity maximizes the absorption of the active agent through the oral mucosa.
  • said oral film comprises at least about 45 weight percent of at least one water soluble film forming polymer, based on the weight of the dry film, and an active agent.
  • the oral film comprises a mixture of a polyalkylene oxide and a cellulose polymer, wherein the ratio of said polyalkylene oxide to said cellulose polymer present in said film is about 1:2 to about 1:5, and an active agent.
  • the oral film comprises at least one water soluble film forming polymer and an active agent, wherein said oral film maintains at least partial integrity and active agent release capability after in vitro exposure to artificial human saliva solution for at least 15 minutes.
  • a method for preparing a slow disintegrating oral film from at least one water soluble film forming polymer and an active agent is provided.
  • the method for preparing a slow disintegrating oral film comprises mixing together at least one water soluble film forming polymer, an active agent and a solvent to form a mixture; and forming a film from the mixture, wherein said film comprises at least 45 weight percent of said at least one water soluble film forming polymer, based on the total weight of the dry film.
  • the method for preparing a slow disintegrating oral film comprises mixing together at least one polyalkylene oxide polymer, at least one cellulose polymer, and an active agent to form a mixture; and forming a film from the mixture, wherein the ratio of said polyalkylene oxide polymer to said cellulose polymer present in said dry film is about 1:2 to about 1:5 (wt/wt).
  • the method for preparing a slow disintegrating oral film comprises mixing together at least one water soluble film forming polymer and an active agent to form a mixture; and forming a film from the mixture, wherein said oral film maintains at least partial integrity and active agent release capability after in vitro exposure to artificial human saliva solution for at least 15 minutes.
  • a method of using a slow disintegrating oral film to administer an effective amount of an active agent to the oral cavity is further provided.
  • the method of administering an active agent comprises providing a slow disintegrating oral film comprising least 45 weight percent of at least one water soluble film forming polymer, based on the weight of the dry film, and an active agent; and introducing said film into the oral cavity.
  • the method of administering an active agent comprises providing a slow disintegrating film comprising a mixture of a polyalkylene oxide and a cellulose polymer, wherein the ratio of said polyalkylene oxide to said cellulose polymer present in said dry film is about 1:2 to about 1:5 (wt/wt), and an active agent; and introducing said film into the oral cavity.
  • the method of administering an active agent comprises providing a slow disintegrating oral film comprising at least one water soluble film forming polymer and an active agent, wherein said oral film maintains at least partial integrity and active agent release capability after in vitro exposure to artificial human saliva solution for at least 15 minutes, and introducing said film into the oral cavity.
  • FIG. 1 is a graph showing the results of an in vitro release of nicotine from three different oral film as compared to a release of nicotine from a prior art film.
  • FIG. 2 is a graph showing the results of an in vitro mucosa permeation test.
  • the invention relates to a slow disintegrating thin film for delivering and releasing a cosmetically active agent, or pharmacologically active agent to the oral cavity for absorption through the oral mucosa.
  • the oral film compositions for the delivery and release of an active agent contains a nicotine active for delivery and release into the oral cavity of an individual so that the nicotine active is absorbed through the oral mucosa and directly enters the individual's systemic circulation.
  • the dosage form may be a monolayer or multi-layer mucoadhesive film, which comprises at least one water soluble film forming polymer and an effective amount of an active agent.
  • the mucoadhesive film disintegrates when applied to the oral cavity to release the active agent, which is then absorbed through the oral mucosa and directly reaches systemic circulation.
  • the oral film comprises at least about 45 weight percent of one or more water soluble film forming polymers, based on the total weight of the dry film.
  • the disintegrable thin film includes a pharmacologically active agent that is compatible with the water soluble film forming polymer(s).
  • the active agent incorporated into the oral film is released upon disintegration of the film and can be absorbed through the oral mucosa.
  • the composition of the disintegrable oral film is such that the oral film has a disintegration time in the oral cavity of greater than 30 seconds and as much as 15 or more minutes. “Disintegration time” is the time in which the integral oral film breaks down and is no longer recognized as an integral unit after being brought into contact with saliva, water, or similar solvent.
  • the integral dosage unit maintains partial integrity and active agent release capability for at least 15 minutes after exposure to artificial human saliva solution.
  • the oral film comprises at least one water soluble film forming polymer.
  • Water soluble film forming polymers that are suitable for use in the present invention include, but are not limited to, cellulose, cellulose derivatives, polyalkylene oxides, polyalkylene glycols, synthetically or naturally occurring gums, acrylic acid polymers, acrylic acid copolymers, methacrylic acid polymers, methacrylic acid copolymers, polyacrylamides, carrageanan, pullunan, polyvinyl pyrrolidone, polyvinyl alcohol, alginic acid, polyethylene glycol-polyvinyl alcohol copolymers, salts of alginic acid, carboxyvinyl polymers, and mixtures thereof.
  • suitable cellulose derivatives include alkyl celluloses, such as methyl cellulose and ethyl cellulose, substituted alkyl celluloses, such as hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, salts of substituted alkyl celluloses, such as sodium carboxymethyl cellulose, and mixtures thereof.
  • suitable gums include xanthan gum, tragacanth gum, guar gum, acacia gum, arabic gum, and mixtures thereof.
  • the slow disintegrating oral film may comprise a mixture of polyethylene oxide and hydroxypropyl methylcellulose as the water soluble film forming polymers.
  • the film forming polymers polyethylene oxide and hydroxypropyl methylcellulose may be present in the dry film in an amount greater than 45 weight percent, based on the total weight of the dry oral film.
  • the film forming polymers polyethylene oxide and hydroxypropyl methylcellulose may be present in the dry film in an amount from greater than 45 weight percent to about 90 weight percent, based on the total weight of the dry oral film. According to other embodiments, the film forming polymers polyethylene oxide and hydroxypropyl methylcellulose may be present in the dry film in an amount from greater than 45 weight percent to about 75 weight percent, based on the total weight of the dry oral film. According to further embodiments, the film forming polymers polyethylene oxide and hydroxypropyl methylcellulose may be present in the dry film in an amount from greater than 45 weight percent to about 50 weight percent, based on the total weight of the dry oral film.
  • the disintegrable oral film comprises a blend or mixture of a polyalkylene oxide, a cellulose polymer and the active agent.
  • the weight ratio of the polyalkylene oxide to cellulose polymer in the dry film may be about 1:2 to about 1:5.
  • the disintegrable oral film comprises a mixture of polyethylene oxide and hydroxypropyl methylcellulose.
  • a suitable polyethylene oxide polymer for use in the oral film is commercially available from The Dow Chemical Company under the trademark POLYOX.
  • POLYOX polyethylene oxide polymers are non-ionic, film forming water soluble polymers that may be calendered, extruded, injection molded or cast.
  • the molecular weights of the POLYOX polyethylene oxide polymers range from about 100,000 to about 8,000,000.
  • a particularly suitable POLYOX polymer that may used in the oral film is POLYOX N-80.
  • POLYOX N-80 has an approximate molecular weight of 200,000 and a viscosity of about 65 to about 115 mPa/s (5% aqueous solution at 25° C.).
  • suitable hydroxypropyl methylcellulose polymers for use in the oral film are commercially available from The Dow Chemical Company under the trademark METHOCEL.
  • METHOCEL E50 is a hydroxypropyl methylcellulose polymer having an approximate molecular weight of 30,000.
  • a special embodiment of the invention is characterized by a disintegrable oral film comprising: at least 45 weight percent of at least one water soluble film forming polymer, based on the total weight of the dry film; and an active agent, wherein said disintegrable oral film comprises a mixture of a polyalkylene oxide, preferably polyethylene oxide, and a cellulose polymer, preferably hydroxypropyl methylcellulose.
  • active agents includes cosmetically or pharmacologically active agents which may be delivered to the oral cavity.
  • suitable active agents include tooth whitening materials, breath fresheners, anti-cavity compounds, anti-calculus compounds, anti-anginals, anti-anxiety, anti-oxidants, anti-convulsants, anti-diabetic agents, anti-diarrheal agents, anti-epileptic agents, anti-inflammatory agents, anti-psychotic agents, anti-pyretic agents, anti-spasmodic agents, analgesics, antihistamines, local anesthetics, anti-bacterial compounds, disinfectants, vasoconstrictors, hemostatics, chemotherapeutics, antibiotics, tooth desensitizing agents, anti-fungals, vasodilators, anti-hypertensives, anti-migraine, anti-arrhythmics, anti-asthmatics, anti-
  • the oral film comprises at least one water soluble film forming polymer and a nicotine active as the active agent.
  • nicotine active refers free nicotine base, nicotine derivatives, nicotine salts, salts of nicotine derivatives, nicotine complexes, and combinations or mixtures thereof.
  • a variety of nicotine actives are well known in the art and are commercially available.
  • Nicotine salts include any physiologically acceptable salt, such as hydrochloride, dihydrochloride, sulfate, tartrate, bitartrate, zinc chloride, salicylate, alginate, ascorbate, benzoate, citrate, edetate, fumarate, lactate, maleate, oleate and sorbate, formed by the interaction of nicotine and any acid.
  • Particularly useful nicotine salts include but are not limited to, nicotine monotartrate, nicotine bitartrate, nicotine hydrochloride, nicotine dihydrochloride, nicotine sulfate, nicotine zinc chloride monohydrate, nicotine salicylate, and mixtures thereof.
  • Suitable nicotine complexes include, but are not limited to, nicotine oils, nicotine complexed with cyclodextrin, nicotine complexed with polymer resins, and combinations or mixtures thereof.
  • the slow disintegrating oral films comprise at least one nicotine active in an amount sufficient to reduce or alleviate nicotine cravings.
  • at least one nicotine active refers to an oral film comprising one nicotine active, or a mixture of more than one nicotine active.
  • the amount of nicotine active included in the oral film is from about 0.25 mg to about 10 mg per dose unit.
  • the amount of the nicotine active included in the oral film is from about 0.25 to about 6 mg per dose unit. According to other embodiments, the amount of nicotine active included in the oral film is from about 0.25 to about 4 mg per dosage unit. According to further embodiments, the amount of nicotine active included in the oral film is from about 1 to about 3 mg per dosage unit.
  • the disintegrable oral films may contain one or more of the following optional components: taste modifying agents, bioadhesive agents, buffering agents, coloring agents, stabilizing agents, inert fillers, emulsifying agents, permeation enhancers, pH adjusting agents, plasticizers, and preservatives.
  • suitable taste modifying agents for use in the disintegrable oral film include flavorants, sweeteners, taste-masking agents, and mixtures thereof.
  • Suitable taste modifying agents include, but are not limited to, the essential oils or water soluble extracts of menthol, wintergreen, peppermint, sweet mint, spearmint, vanillin, cherry, butterscotch, chocolate, cinnamon, clove, lemon, orange, raspberry, rose, spice, violet, herbal, fruit, strawberry, grape, pineapple, peach, kiwi, papaya, mango, coconut, apple, coffee, plum, watermelon, nuts, green tea, grapefruit, banana, butter, chamomile, sugar, dextrose, lactose, mannitol, sorbitol, sucrose, sucralose, xylitol, malitol, aspartame, saccharin, sodium saccharin, sodium cyclamate, acesulfame K, and honey.
  • suitable colorants for use in the disintegrable oral film include pigments, dyes, natural food colors that are suitable for food and drug applications, such as FD&C coloring agents, and mixtures thereof.
  • suitable stabilizing agents for use in the oral thin films include chelating agents.
  • Chelating agents are used to prevent oxidation of the disintegrable oral film.
  • a particularly useful chelating agent is ethylenediaminetetraacetic acid (EDTA). Any chelating agents that can be incorporated into a solid pharmaceutical preparation may be utilized in the oral film.
  • the oral film compositions may optionally include one or more water soluble inert fillers.
  • suitable water soluble inert fillers for use in the disintegrable oral film include mannitol, xylitol, glucose, fructose, sucrose, sucralose, lactose, trehalose, maltodextrin, dextran, dextrin, modified starches, dextrose, sorbitol, dextrates, and mixtures thereof.
  • suitable emulsifying agents for use in the disintegrable oral film include solubilizers, wetting agents, and release modifiers.
  • Suitable emulsifying agents include, but are not limited to, castor oil derivatives, cetyl alcohol, ethanol, hydrogenated vegetable oils, polyvinyl alcohol, simethicone, sorbitan ester, glyceryl monostearate, polyoxyethylene alkyl ethers, polyoxyethylene stearates, poloxamer, polysorbates, and mixtures thereof.
  • the oral film compositions may optionally include at least one plasticizer.
  • Suitable plasticizers which may be included in the film composition include, but are not limited to, alkylene glycols, polyalkylene glycols, glycerol, triacetin, deacetylated monoglyceride, diethyl salate, triethyl citrate, dibutyl sebacate, polyethylene glycols, and the like, and mixtures thereof.
  • the oral films may also optionally include one or more “permeation enhancers.”
  • a “permeation enhancer” is a natural or synthetic compound which facilitates the absorption of an active agent through a mucosal surface.
  • the phrase “one or more” is intended to mean that a single permeation enhancer, or combinations or mixtures of more than one permeation enhancer, may be included in the oral film.
  • the oral film composition may also include one or more preservatives.
  • Suitable preservative include, but are not limited to, butylated hydroxyanisole (BHA), butylate hydroxytoluene (BHT), ascorbic acid, tocopherol derivatives, citric acid, parabens, derivatives of parabens, sorbic acid, salts of sorbic acid, sodium benzoate, propionic acid, salts of propionic acid, acetic acid, salts of acetic acid, and mixtures thereof.
  • the method for preparing a disintegrable oral film includes mixing together at least one water soluble film forming polymer, an active agent, a compatible solvent, and optionally any one or more of the above described optional components to form a homogenous mixture.
  • a film is formed from the mixture of water soluble film forming polymer(s), active agent and optional components to provide a disintegrable oral film containing at least 45 percent by weight of said water soluble polymer(s), based on the total weight of the dry film.
  • the method for preparing a disintegrable oral film includes mixing together at least one polyalkylene oxide polymer, at least one cellulose polymer, an active agent, a compatible solvent, and any optionally one or more of the above described optional components to form a homogenous mixture.
  • a film is formed from this mixture.
  • the water polymer polymers are combined together to provide a ratio of said polyalkylene oxide polymer to cellulose polymer in the dry film of about 1:2 to about 1:5 (wt/wt).
  • the homogenous mixture of film components is degassed and uniformly coated onto a casting substrate at a predetermined thickness and then dried. Alternatively, the homogenous mixture may be extruded to form a film on a casting substrate.
  • the dried film prepared from casting or extrusion is cut into various sizes to produce individual dosage units.
  • the dried film may be cut by any known cutting method, such as, for example, die cutting, knife cutting, or machine cutting.
  • Methods of using the disintegrable film for administering an effective dosage of an active agent to the oral cavity of an individual includes using the disintegrable film to administer an effective dosage of nicotine to the oral cavity of an individual who desires to stop using tobacco products.
  • the thin film dosage form is applied to the oral cavity and adheres to a mucosal surface, such as the cheek, palate, or tongue as soon as the individual closes his or her mouth.
  • the film disintegrates and releases the nicotine active for absorption through the oral mucosa.
  • the active may be absorbed by the sublingual or buccal mucosa.
  • the oral film has a high mucoadhesivity to the oral mucosa and slow disintegration rate. Because of the high mucoadhesivity and slow disintegration rate, the nicotine active is absorbed substantially at the point of adhesion within the oral cavity. Because the nicotine active is absorbed through the oral mucosa, the amount of nicotine active that is swallowed is minimized.
  • the release of nicotine from the thin film occurs without mastication, such as chewing or sucking of the film. There is virtually no risk that an individual will choke or accidentally swallow the whole dosage form, which may occur with nicotine-containing tablets, capsules or lozenges.
  • a single layer disintegrable oral film was produced by preparing a casting solution and casting a thin film from the casting solution.
  • the oral film comprised a mixture of POLYOX N80 and METHOCEL E50 at a weight ratio of 1:2.
  • the stainless steel pot was removed from the ice bath and a menthol solution (10.56 g of menthol in ethanol), 7.54 g of glycerin, 1.95 g of sucralose, 49.53 g of peppermint flavor, and ethyl alcohol was added with mixing.
  • a nicotine solution was prepared by adding 4.01 g of nicotine bitartrate to 20 ml of deionized water. The nicotine bitartrate solution was added to the thin film casting solution.
  • the casting solution was coated on a polyvinyl chloride casting liner and was dried at a temperature of about 70° C. for about 4 minutes.
  • the resulting disintegrable thin film contained 1 mg of nicotine in 484 mm 2 .
  • the table below indicates the weight percent of each component in the dry film.
  • Ingredient % in Dry Film Polyox TM N-80 (Dow) 16.32 Methocel TM E50 (Dow) 32.67 MENTHOL 7.32 Nicotine bitartrate 2.78 Glycerin 5.22 Peppermint Flavor 34.32 Sucralose 1.35 FD & C Blue 0.02
  • a single layer disintegrable oral film was produced by preparing a casting solution and casting a thin film from the casting solution.
  • the oral film comprised a mixture of POLYOX N80 and METHOCEL E50 at a ratio of 1:3.
  • the stainless steel pot was removed from the ice bath and a menthol solution (7 g of menthol in ethanol), 5 g of glycerin, 1.3 g of sucralose, 33 g of peppermint flavor, and ethyl alcohol was added with mixing.
  • a nicotine solution was prepared by adding 6.63 g of nicotine bitartrate to 30 ml of deionized water. The nicotine bitartrate solution was added to the thin film casting solution.
  • the casting solution was coated on a siliconized casting liner at a coating wet thickness of 0.62 mm, and was dried at a temperature of about 70° C. for about 4 minutes.
  • the resulting disintegrable thin film contained 1 mg of nicotine in 484 mm 2 .
  • the table below indicates the weight percent of each component in the dry film.
  • Ingredient % in Dry Film Polyox TM N-80 11.77 Methocel TM E50 35.3 Menthol 7 Nicotine bitartrate 6.63 Glycerin 5 Peppermint Flavor 33 Sucralose 1.3 FD & C Blue 0.02
  • a single layer disintegrable oral film was produced by preparing a casting solution and casting a thin film from the casting solution.
  • the oral film comprised a mixture of POLYOX N80 and METHOCEL E50 at a ratio of 1:4.
  • a nicotine solution was prepared by adding 6.63 g of nicotine bitartrate to 30 ml of deionized water. The nicotine bitartrate solution was added to the thin film casting solution.
  • the casting solution was coated on a siliconized casting liner at a coating wet thickness of 0.62 mm, and was dried at a temperature of about 70° C. for about 4 minutes.
  • the resulting disintegrable thin film contained 1 mg of nicotine in 484 mm 2 .
  • the table below indicates the weight percent of each component in the dry film.
  • Ingredient % in Dry Film Polyox TM N-80 9.41 Methocel TM E50 37.65 Menthol 7 Nicotine bitartrate 6.63 Glycerin 5 Peppermint Flavor 33 Sucralose 1.3 FD & C Blue 0.02
  • a single layer disintegrable oral film was produced by preparing a casting solution and casting a thin film from the casting solution.
  • the oral film comprised a mixture of POLYOX N80 and METHOCEL E50 at a ratio of 1:5 (wt/wt).
  • the stainless steel pot was removed from the ice bath and a menthol solution (7 g of menthol in ethanol), 5 g of glycerin, 1.3 g of sucralose, 33 g of peppermint flavor, and ethyl alcohol was added with mixing.
  • a nicotine solution was prepared by adding 6.63 g of nicotine bitartrate to 30 ml of deionized water. The nicotine bitartrate solution was added to the thin film casting solution.
  • the casting solution was coated on a siliconized casting liner at a coating wet thickness of 0.585 mm, and was dried at a temperature of about 70° C. for about 4 minutes.
  • the dry coat weight of the film was 0.956 g.
  • the resulting disintegrable thin film contained 1 mg of nicotine in 484 mm 2 .
  • the table below indicates the weight percent of each component in the dry film.
  • Ingredient % in Dry Film Polyox TM N-80 7.84 Methocel TM E50 39.22 MENTHOL 7 Nicotine bitartrate 6.63 Glycerin 5 Peppermint Flavor 33 Sucralose 1.3 FD & C Blue 0.02
  • a single layer disintegrable oral film was produced by preparing a casting solution and casting a thin film from the casting solution.
  • the oral film comprised a mixture of POLYOX N80 and METHOCEL E50 at a ratio of 1:2.
  • the stainless steel pot was removed from the ice bath and a menthol solution (10.57 g of menthol in ethanol), 7.52 g of glycerin, 1.95 g of sucralose, 49.51 g of peppermint flavor, and ethyl alcohol was added with mixing.
  • a nicotine solution was prepared by adding 9.94 g of nicotine bitartrate to 30 ml of deionized water. The nicotine bitartrate solution was added to the thin film casting solution.
  • the casting solution was coated on a siliconized casting liner at a coating wet thickness of 0.70 mm, and was dried at a temperature of about 70° C. for about 4 minutes.
  • the dry coat weight of the film was 1.034 g.
  • the resulting disintegrable thin film contained 1 mg of nicotine in 600 mm 2 .
  • the table below indicates the weight percent of each component in the dry film.
  • Ingredient % in Dry Film Polyox TM N-80 15.7 Methocel TM E50 31.37 Menthol 7.04 Nicotine bitartrate 6.62 Glycerin 5.01
  • a 1.54 cm 2 size samples of oral films were placed on a Franz cell with a teflon filter as a support.
  • An artificial human saliva solution was prepared from 0.19 g/L K 2 PO 4 , 2.38 g/L Na 2 HPO 4 and 8 g/L of NaCl in water.
  • the experiment was started by placing the artificial saliva in contact with the oral film. 1 ml samples of the artificial saliva solution were taken every 30 seconds for 15 minutes. The removed artificial saliva volume (1 ml) was replenished with fresh artificial saliva solution after each sample. The quantities of nicotine released by the oral film was determined by HPLC analysis of the collected samples. A total of three measurements were made per formulation. The results of the in vitro drug release experiments are shown in FIG. 1 .
  • the removed solution volume (1 ml) was replenished with an equal amount of fresh solution after each withdrawal.
  • the quantities of nicotine released after 3 minutes and permeating the mucosa were determined by HPLC of the collected samples.
  • the results of the in vitro buccal permeation experiments are shown in FIG. 2 .
  • Thin film prototypes according to the invention can also be prepared comprising hydroxypropyl methylcellulose as the film forming polymer and arabic gum.
  • arabic gum can be substituted for xantham gum in formulations (A), (B) and (C) above, to provide similar disintegration profiles.
  • the disintegrable oral films are useful as a nicotine replacement therapy.
  • the oral films are useful as a means to reduce or stop tobacco usage, such as stopping the smoking cigarettes, cigars, pipe tobacco, stopping the use of smokeless chewing tobacco.
  • the oral films may be used concurrently with tobacco in any planned tobacco reduction program.
  • the present invention also relates to methods of reducing tobacco usage, comprising orally administering one or more of the orally dissolving films of the present invention to a person in need of such reduction.
  • the disintegrable oral films may be administered to an individual as needed to prevent or reduce nicotine cravings, within any recommended or permitted limits.
  • the orally dissolving films are typically administered such that the nicotine active is primarily delivered transbuccally in the mouth.

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RU2436565C2 (ru) 2011-12-20
JP2009527488A (ja) 2009-07-30
AU2007214474A1 (en) 2007-08-23
WO2007095600A3 (en) 2008-04-17
CN101384249A (zh) 2009-03-11
US20120125351A1 (en) 2012-05-24
WO2007095600A2 (en) 2007-08-23
EP1993509A2 (en) 2008-11-26
MX2008010548A (es) 2008-10-20
RU2008137032A (ru) 2010-03-27
CA2640243A1 (en) 2007-08-23
AU2007214474B2 (en) 2011-01-20
CA2640243C (en) 2015-08-18
JP5469868B2 (ja) 2014-04-16
CN101384249B (zh) 2011-11-30
US20150111928A1 (en) 2015-04-23
US8871243B2 (en) 2014-10-28
BRPI0708068A2 (pt) 2011-05-17
JP2014037415A (ja) 2014-02-27

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