WO2006030851A1 - ピレノキシン懸濁型点眼剤 - Google Patents
ピレノキシン懸濁型点眼剤 Download PDFInfo
- Publication number
- WO2006030851A1 WO2006030851A1 PCT/JP2005/017022 JP2005017022W WO2006030851A1 WO 2006030851 A1 WO2006030851 A1 WO 2006030851A1 JP 2005017022 W JP2005017022 W JP 2005017022W WO 2006030851 A1 WO2006030851 A1 WO 2006030851A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- drug
- formulation
- suspension
- pirenoxine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- 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
- A61K31/535—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
- A61K31/5375—1,4-Oxazines, e.g. morpholine
- A61K31/5383—1,4-Oxazines, e.g. morpholine ortho- or peri-condensed with heterocyclic ring systems
-
- 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
- A61P27/12—Ophthalmic agents for cataracts
-
- 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
- A61K9/10—Dispersions; Emulsions
Definitions
- the present invention relates to an improvement of a suspension-type eye drop comprising pirenoxine, which is a therapeutic agent for early senile cataract, as an active ingredient.
- a pirenoxine suspension type eye drop is widely used as a therapeutic agent for early senile cataract.
- the drug in the suspension may stick to the inner surface of the container due to changes in the storage state (storage posture, storage temperature, etc.).
- the drug in the suspension that has settled down after being kept stationary is exposed to the voids of the container due to a change in the storage posture such as the rollover of the container, and the drug is dried.
- the drug adheres to the inner surface of the container Once the drug adheres to the container, it is necessary to shake for a long time to uniformly disperse the drug, which is preferable in terms of convenience.
- Such a phenomenon can be said to occur conversely, considering the force distribution process that is unlikely to occur when the container is upright and the situation during use.
- the drug may stick to the liquid contact part of the container, which is just the gap part of the container.
- Patent Document 1 discloses a pirenoxine suspension type eye drop, and an example of blending hydroxypropyl methylcellulose or methylcellulose, which is a cellulose polymer, is described as one example of its formulation.
- Patent Document 1 does not describe the dispersion of the drug adhering to the container, which is the object of the present invention, into the liquid, and hydroxypropyl methylcellulose or methylcellulose is intended for thickening. Yes, that The blending concentration is also high at 0.3% to meet the above purpose.
- polybulurpyrrolidone and polyvinyl alcohol are generally used as drug suspending agents.
- Patent Document 2 by adding polyvinylpyrrolidone and an ionic polymer such as carboxymethylcellulose, adhesion of the drug in the suspension to the container and formation of aggregates are suppressed.
- Patent Document 3 discloses a technique for improving redispersibility in order to suppress drug aggregation and caking by blending a water-soluble polymer such as methylcellulose and polybulal alcohol. This is also a technique for suppressing the caking of drugs in suspensions, and it is easy to disperse drugs fixed in containers into liquids! Be cunning!
- Patent Document 1 Japanese Patent Publication No. 7-037386
- Patent Document 2 Pamphlet of International Publication No. 02Z015878
- Patent Document 3 JP 2003-55262 A
- an object of the present invention is to provide a pirenoxine suspension type eye drop which can easily disperse a drug adhering to a container in a liquid.
- the present invention has a concentration of cellulosic polymer in the pirenoxine suspension type eye drop.
- WZV 00001-0. 1%
- the dispersibility of the drug adhering to the container can be improved even when the cellulosic polymer blended in the eye drop of the present invention is at a low concentration.
- the effect of improving the dispersibility of the drug adhered to the container is recognized even at a high concentration, the fluidity of the particles decreases as the liquid viscosity increases at a high concentration.
- Examples of the cellulosic polymer used in the present invention include hydroxypropyl methylcellulose, methinoresenorelose, hydroxyethinoresenorelose, hydroxypropinoresenorelose, and the like.
- the concentration of pirenoxine, which is an active ingredient of eye drops in the present invention, is not particularly limited as long as it is a value that can exert a therapeutic effect.
- the concentration currently used for treatment is 0.005 g in 100 ml.
- the present invention aims to easily disperse a drug adhering to a container by adding a cellulosic polymer to a suspension type pirenoxine ophthalmic solution in a liquid, the pH of which is The range of 3 to 5.5 is more preferable, and 3 to 4.5 is more preferable.
- the eye drop of the present invention can be prepared by a method according to Patent Document 1, and an isotonic agent, preservative, pH adjuster, surfactant and the like can be added as necessary. .
- the following method is mentioned as a typical example of the manufacturing method of this invention formulation.
- isotonic agents, preservatives, pH adjusters, surfactants, stabilizers, etc. which are excipients usually used for eye drops, are dissolved in sterilized purified water as necessary. After adding pirenoxine to this solution, it is suspended using various homogenizers, mixers, mills or ultrasonic waves. Finally, after adding the cell mouth polymer, adjust the pH by adding a pH adjuster if necessary.
- Examples of the isotonic agent include glycerin, propylene glycol, polyethylene glycol, trihalose, sucrose, sorbitol, mannitol, sodium chloride, rhodium chloride. , Calcium salt, magnesium salt and the like.
- Examples of the preservative include benzalkonium chloride, methylparaben, ethylparaben, propylparaben, butylparaben, chlorobutanol and the like.
- Examples of the pH adjuster include hydrochloric acid, citrate, phosphoric acid, acetic acid, sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate and the like.
- surfactant examples include polysorbate 80, polyoxyethylene hydrogenated castor oil 60, and the like.
- Examples of the stabilizer include edetic acid and sodium edetate.
- the invention's effect include edetic acid and sodium edetate.
- suspensions having the formulation shown in Table 1 were prepared.
- test suspension of the present invention formulation 1 and the subject formulation 1 prepared as described above was filled into 30 ml of 5 ml eye drop containers, and 30 samples were prepared. The sample was kept upright and stored at room temperature for 4 weeks, and then the sample was gently inverted and stored at room temperature for 4 weeks. After storage, the dispersibility of the drug that adhered to the bottom of the container in each treatment was evaluated.
- test suspension of each formulation was filled into 30 5 ml eye drop containers, and 30 samples were prepared.
- the sample was tumbled and stored at room temperature for 4 weeks, and then the sample was slowly erected and further stored at room temperature for 4 weeks. After storage, the dispersibility of the drug adhering to the container wall in each formulation was evaluated.
- Table 2 shows the evaluation results of the effect determination method 1 1 (upright to inverted).
- Table 3 shows the results of evaluation using the effect determination method 1 2 (rollover ⁇ upright).
- the numbers in the above table are in the container evaluation section (the bottom of the container in the case of effect judgment method 1 1 (upright ⁇ inverted), and the side wall of the container in the case of effect judgment method 1 2 (rolling ⁇ upright)).
- a specimen having a drug adhering to the inner surface of the container refers to a specimen in which the drug can be visually observed as particles.
- “immediately after the end of storage” indicates the number of specimens to which the drug has adhered to the container evaluation part immediately after the end of storage.
- “50 rotations” in the table indicates the number of specimens to which the drug has adhered to the container evaluation part after the specimen has been gently rotated 50 times by hand after storage.
- “50 rotations + 20 hand shakes” in the table indicates the number of specimens where the drug has adhered to the container evaluation part after the specimens have been shaken 20 times by hand after the specimens have been rotated 50 times.
- “50 rotations + 30 hand gestures” and “50 rotations + 50 hand movements” in the table indicate that after rotating the sample 50 times and shaking the sample 30 times and 50 times each by hand. Shows the number of specimens with drug adhering to the container evaluation part.
- test samples of each formulation prepared according to the above were filled into 30 5ml eye drop containers, and 30 samples were prepared. The sample was kept upright and stored at room temperature for 1 week, and then the sample was gently inverted and stored at room temperature for 1 day. After storage, the dispersibility of the drug adhered to the bottom of the container in each formulation was evaluated.
- Table 4 shows the evaluation results. Refer to Example 1 for notations in the table.
- the dispersibility of the drug adhering to the container can be improved by mixing hydroxypropylmethylcellulose or methylcellulose, which is a cellulose polymer, in particular. Significant improvement was observed.
- hydroxypropyl pill methylcellulose was 0.0001% (W / V) (formulation 6 of the present invention), 0.3% ( A pirenoxine suspension-type eye drop formulated at a concentration of (W / V) (control formulation 2) was prepared. Hydroxypropyl methylcellulose was manufactured by Shin-Etsu Chemical Co., Ltd. (TC-5R).
- each test formulation prepared in accordance with the above, the formulation 1 of the present invention and the control formulation 1 was filled into 30 5 ml eye drops containers, and 30 samples were prepared. The specimen was kept upright and stored at room temperature for 1 week, and then the specimen was slowly turned over and stored at room temperature for 3 days. After storage, the dispersibility of the drug adhering to the bottom of the container in each formulation was evaluated.
- Table 6 shows the results of evaluation using the effect determination method 3-2 (upright ⁇ inverted, evaluation site; container mouth).
- the numerical values in the table indicate the number of specimens that are attached to the mouth of the container after rotating and shaking in the same manner as in Example 1!
- the following preparation was obtained according to the preparation method described in Example 1.
- the amount of each component is a value in 100 ml.
- the amount of hydroxypropyl methylcellulose is 0.00001, 0.
- a formulation similar to Formulation Example 1 can be obtained by changing to 0001, 0.001, 0.01, 0.05 or 0.lg.
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Ophthalmology & Optometry (AREA)
- Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Medicinal Preparation (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004268192 | 2004-09-15 | ||
| JP2004-268192 | 2004-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006030851A1 true WO2006030851A1 (ja) | 2006-03-23 |
Family
ID=36060101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/017022 Ceased WO2006030851A1 (ja) | 2004-09-15 | 2005-09-15 | ピレノキシン懸濁型点眼剤 |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2006030851A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007132907A1 (en) * | 2006-05-12 | 2007-11-22 | Otsuka Pharmaceutical Co., Ltd. | Hydrogel suspension and manufacturing process thereof |
| WO2008111630A1 (ja) * | 2007-03-13 | 2008-09-18 | Santen Pharmaceutical Co., Ltd. | ピレノキシンを含有する懸濁型水性液剤 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002015878A1 (fr) * | 2000-08-25 | 2002-02-28 | Senju Pharmaceutical Co., Ltd. | Preparations en suspension aqueuse |
| JP2003055262A (ja) * | 1997-05-14 | 2003-02-26 | Senju Pharmaceut Co Ltd | 再分散性の良い水性懸濁液剤 |
-
2005
- 2005-09-15 WO PCT/JP2005/017022 patent/WO2006030851A1/ja not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003055262A (ja) * | 1997-05-14 | 2003-02-26 | Senju Pharmaceut Co Ltd | 再分散性の良い水性懸濁液剤 |
| WO2002015878A1 (fr) * | 2000-08-25 | 2002-02-28 | Senju Pharmaceutical Co., Ltd. | Preparations en suspension aqueuse |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007132907A1 (en) * | 2006-05-12 | 2007-11-22 | Otsuka Pharmaceutical Co., Ltd. | Hydrogel suspension and manufacturing process thereof |
| JP2009536940A (ja) * | 2006-05-12 | 2009-10-22 | 大塚製薬株式会社 | 懸濁性ハイドロゲルとその製造方法 |
| CN101442986B (zh) * | 2006-05-12 | 2011-10-05 | 大塚制药株式会社 | 水凝胶悬浮液及其制备方法 |
| US8617606B2 (en) | 2006-05-12 | 2013-12-31 | Otsuka Pharmaceutical Co., Ltd. | Hydrogel suspension and manufacturing process thereof |
| WO2008111630A1 (ja) * | 2007-03-13 | 2008-09-18 | Santen Pharmaceutical Co., Ltd. | ピレノキシンを含有する懸濁型水性液剤 |
| CN101636163A (zh) * | 2007-03-13 | 2010-01-27 | 参天制药株式会社 | 含有吡诺克辛的混悬型水性液体制剂 |
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