WO2005082335A1 - 点眼剤 - Google Patents
点眼剤 Download PDFInfo
- Publication number
- WO2005082335A1 WO2005082335A1 PCT/JP2005/002899 JP2005002899W WO2005082335A1 WO 2005082335 A1 WO2005082335 A1 WO 2005082335A1 JP 2005002899 W JP2005002899 W JP 2005002899W WO 2005082335 A1 WO2005082335 A1 WO 2005082335A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- eye drop
- crotamiton
- present
- manufactured
- Prior art date
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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
- A61K9/10—Dispersions; Emulsions
- A61K9/107—Emulsions ; Emulsion preconcentrates; Micelles
-
- 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
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/16—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing nitrogen, e.g. nitro-, nitroso-, azo-compounds, nitriles, cyanates
- A61K47/18—Amines; Amides; Ureas; Quaternary ammonium compounds; Amino acids; Oligopeptides having up to five amino acids
-
- 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
- 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
Definitions
- the present invention relates to a sustained-release eye drop suitable for a poorly water-soluble drug, in which the efficacy of the drug lasts for a long time, and is uniform and stable.
- ophthalmic solutions may not maintain their medicinal effects for a long time if the administered drug is expelled from the eye in a short time.
- intraocular pressure increases due to a decrease in drug efficacy, and the expected therapeutic effect may not be sufficiently obtained. Therefore, it may be desirable for eye drops to have a long lasting effect.
- studies have been conducted on sustained-release ophthalmic solutions in which the drug is stored in the eye such as the conjunctival sac for a long time and gradually released therefrom.
- Aqueous gel ophthalmic solution containing a group-containing polymer or an ethylene-maleic anhydride polymer Japanese Patent Application Laid-Open No. 8-506588, Japanese Patent Application Laid-Open No. 62-215518
- a drug adsorbed on a lactic acid copolymer and released into the vitreous body There are reports of intraocular carrier preparations (plugs) (JP-A-9-155555) and emulsion drops (WO97Z05882 and WO98Z30221).
- aqueous gel ophthalmic solutions are difficult to sterilize, so that germs grow quickly and eye drops are not easy due to the high viscosity of the formulation.
- Intraocular implants, once implanted, have a sustained effect for several months, but have problems such as requiring surgical operation for implantation.
- an oil such as liquid paraffin
- a surfactant such as a phospholipid may be blended (WO97 / 05882, WO98 / 30221 international pamphlet), or a fat such as silicone, a water-soluble bur polymer, and a thickener may be blended (Table 2000-507231). Publication).
- the present inventors have conducted various studies in order to find a uniform and stable eye drop that has a long-lasting effect of the drug, has a viscosity that allows easy instillation, and has low irritation to the mucous membrane of the eye. As a result, they have found that the above-mentioned properties can be satisfied with an emulsion type ophthalmic solution containing a poorly water-soluble drug, castor oil, methylcellulose, water, and a solvent selected from benzyl alcohol and Z or crotamiton.
- the present invention provides a poorly water-soluble drug 0.05-1% by weight, castor oil 0.1-8% by weight, methylcellulose 0.1-2% by weight, water 80-99% by weight, and benzene. It is intended to provide an emulsion type ophthalmic solution containing 0.1 to 8% by weight of a solvent selected from zyl alcohol and / or crotamiton.
- the eye drop of the present invention is an emulsion type eye drop containing a poorly water-soluble drug as an active ingredient.
- ophthalmic solution includes an ophthalmic solution composition and a preparation in which the composition is contained in a container suitable for instilling.
- the poorly water-soluble drug used in the present invention is a drug having a saturated concentration in water at 20 ° C of 0.001 g / mL (0.1%) or less and suitable for administration by eye drops.
- anti-inflammatory agents such as glaucoma's therapeutic agents for ocular hypertension such as nipradilol, isopropyl unoprostone, latanoprost, epinephrine as a decongestant, berberine chloride as an anti-inflammatory astringent, etc.
- Antibacterial agents such as retinol palmitate and tocopherol acetate Sulfamethoxazole that, Surufuisokisazo Lumpur, norfloxacin, etc., lidocaine hydrochloride and the like is a local anesthetic, a cataract treating agent pirenoxine like, Renien the like to a ⁇ conformance improving agent.
- Castor oil used in the present invention is a fatty oil obtained by squeezing castor seeds, and a commercially available product can be used. Examples of commercially available products include castor oil of the Japanese Pharmacopoeia (manufactured by Nikko Pharmaceutical Co., Ltd.). The content of castor oil is preferably 0.1 to 8% by weight, more preferably 17 to 17% by weight, particularly preferably 16 to 16% by weight, based on the total weight of the ophthalmic solution.
- Methylcellulose used in the present invention is a methyl ether of cellulose, and a commercially available product can be used.
- Commercially available products include, for example, Metroze SM-4, Metroze SM-15, Metroze SM_25, Metroze SM_100, Metroze SM_400, Metroze SM_1500, Metroze SM_4000, Metroze SM_8000 (manufactured by Shin-Etsu Irigaku Kogyo Co., Ltd.), Methosenor A ( Dow Chemical Co., Ltd.) and Marporose M (all from Matsumoto Yushi Pharmaceutical Co., Ltd.).
- the absolute viscosity of methylcellulose is preferably 110 mPa's, more preferably 580 mPa's, particularly preferably 1060 mPa's under the condition of a 0.5% aqueous solution at 25 ° C.
- the blending amount of methylcellulose is preferably 0.1 to 2% by weight, more preferably 0.2 to 1% by weight, and particularly preferably 0.3 to 0.8% by weight based on the total weight of the eye drop composition. %.
- the amount of water used in the present invention is preferably from 80 to 99% by weight, more preferably from 82 to 97% by weight, and particularly preferably from 84 to 95% by weight, based on the total weight of the eye drop composition.
- benzinole alcohol used in the present invention a commercially available product can be used.
- examples of commercially available products include benzyl alcohol I (manufactured by Takasago International Corporation).
- crotamiton used in the present invention, a commercially available product can be used.
- Commercially available products include, for example, crotamiton (manufactured by Kongo Chemical Co., Ltd.).
- Benzyl alcohol and crotamiton are solvents that dissolve poorly water-soluble drugs, and may be used alone or together. When benzyl alcohol and crotamiton are used together, their mixing ratio is arbitrary.
- the amount of benzyl alcohol and / or crotamiton is preferably 0.1 to 8% by weight, more preferably 17 to 17% by weight, and particularly preferably 117 to 16% by weight, based on the total weight of the ophthalmic solution. % By weight.
- the eye drop composition of the present invention may deviate from the object of the present invention.
- the pharmaceutical additives include, for example, inorganic salts, buffers, isotonic agents, chelating agents, stabilizers, pH regulators, preservatives, antioxidants and the like.
- inorganic salts examples include sodium chloride, potassium salt, potassium salt, calcium salt, sodium hydrogen carbonate, sodium carbonate, dried sodium carbonate, magnesium sulfate, sodium hydrogen phosphate, sodium dihydrogen phosphate, and the like. Potassium dihydrogen phosphate and the like are included, and the blending amount thereof is preferably 0.1% by weight based on the total amount of the composition.
- buffer examples include borate buffer, phosphate buffer, carbonate buffer, citrate buffer, tartrate buffer, acetate buffer, epsilon aminocaproic acid, and aspartate.
- the compounding amount is preferably 0 to 2% by weight based on the total amount of the eye drop composition.
- Examples of the tonicity agent include sugars such as glucose, trehalose, ratatose, fructose, mannitol, xylitol, and sorbitol; polyhydric alcohols such as glycerin, polyethylene glycol, and propylene glycol; Inorganic salts such as danipotassium and the like are included, and the compounding amount thereof is preferably 0 to 3% by weight based on the total amount of the eye drop composition.
- sugars such as glucose, trehalose, ratatose, fructose, mannitol, xylitol, and sorbitol
- polyhydric alcohols such as glycerin, polyethylene glycol, and propylene glycol
- Inorganic salts such as danipotassium and the like are included, and the compounding amount thereof is preferably 0 to 3% by weight based on the total amount of the eye drop composition.
- Examples of the chelating agent include edetates such as disodium edetate, disodium edetate, trisodium edetate, tetrasodium edetate, and calcium edetate; Examples thereof include salts thereof, sodium hexametaphosphate, and citric acid, and the amount thereof is preferably 0 to 0.2% by weight based on the total amount of the ophthalmic composition.
- Examples of the stabilizer include edetates, sodium bisulfite, and the like, and the blending amount thereof is preferably 01% by weight based on the total amount of the eye drop composition.
- the pH regulator examples include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, bases such as alkali metal carbonates and bicarbonates such as sodium carbonate, organic acids such as acetic acid and citric acid, and hydrochloric acid. And an inorganic acid such as phosphoric acid, and the like, and the amount thereof is preferably 0.1% by weight based on the total amount of the eye drop composition.
- Examples of the preservatives include sorbic acid; potassium sorbate; Chlorohexidine; chlorhexidine dalconate; quaternary ammonium salts such as benzalkonium chloride, salted benzene, and salted cetylpyridinium; alkylpolyaminoethyldaricin; Examples thereof include chlorobutanol, polyquad, and polyhexamethylene biguanide.
- the compounding amount thereof is preferably from 0 to 0.2% by weight based on the total amount of the eye drop composition.
- antioxidant examples include 2-mercaptobenzimidazole, concentrated mixed tocoprole, and the like, and the amount of the antioxidant is preferably 0.1 to 0.14% by weight based on the total amount of the eye drop composition.
- the absolute viscosity of the eye drop of the present invention at 25 ° C is preferably from 4 to 50 mPa's, more preferably from 4 to 30 mPa's, particularly preferably from 4 to 20 mPa's. If the absolute viscosity is more than 50 mPa's, it is not more than 50 mPa's because the eye drops cannot be easily applied, the patient becomes uncomfortable after the instillation, and the manufacturing process of the preparation becomes complicated. Conversely, if the absolute viscosity is lower than 4 mPa's, the emulsion may be separated over time immediately after production or several hours after production, and a uniform preparation may not be obtained.
- the above absolute viscosity can be measured, for example, by a method using a cone-plate rotational viscometer. This method is described in the General Test Methods, 45. Viscosity Measurement Method, 2nd Method Rotational Viscometer Method, (3) Cone-plate Rotary Viscometer described in the 14th revision of the Japanese Pharmacopoeia. The measurement is performed using a commercially available conical plate type rotary viscometer and an appropriately selected rotor.
- an E-type viscometer As the viscometer, an E-type viscometer (TOKIMEC), a synchro rheological PC type (Brookfield) ), Ferrantiary (manufactured by Ferranti), Lord Visco R (manufactured by Haake), IGK Hi-Shear Rheometer (manufactured by Ishida Giken Co., Ltd.), Shimadzu Rheometer (manufactured by Shimadzu Corporation), Mechanical Spectro Meter (made by Rheometrics), Rheometer AR-1 000N (made by TA_instruments), etc.
- TOKIMEC E-type viscometer
- a synchro rheological PC type Brookfield
- Ferrantiary manufactured by Ferranti
- Lord Visco R manufactured by Haake
- IGK Hi-Shear Rheometer manufactured by Ishida Giken Co., Ltd.
- Shimadzu Rheometer manufactured by Shimadzu Corporation
- Mechanical Spectro Meter made by Rheometrics
- the eye drops of the present invention usually have an absolute viscosity in the above range by mixing the above essential components and optional components as necessary and emulsifying the mixture.
- the emulsion refers to a liquid in which oil droplets are uniformly dispersed in water, and the diameter of the emulsion particles is usually 500 nm to 2000 nm, preferably 500 nm to 100 nm. If it is larger than 2000, it may be separated over time.
- the method for emulsifying the ophthalmic solution composition is not particularly limited. Sir (TKAUTO HOMOMIXER 'Special Kika Co., Ltd.), CLEARMIX (CREAMIX'M.
- emulsion particles is more uniform when a high-pressure emulsification equipment is used. This is preferable in that respect.
- the pH of the eye drop of the present invention is adjusted to usually 59, preferably 5-8.
- the osmotic pressure of the ophthalmic solution of the present invention is usually 200 700 m ⁇ sm, preferably 200 600 mOsm, and the osmotic pressure ratio to physiological saline is usually 0.53, preferably about 0.5-2. .
- the eye drop of the present invention can be produced by a general emulsion production method using the above essential components and optional components as necessary.
- it can be produced by uniformly dissolving or suspending the above components and subjecting them to filtration sterilization treatment.
- the eye drops of the present invention are usually stored in a container used for eye drops during distribution or use.
- methylcellulose (Metroze SM-4000, manufactured by Shin-Etsu Chemical Co., Ltd.) was previously dissolved in 89.3 g of saline (Otsuka Raw Food Injection 'Otsuka Pharmaceutical Co., Ltd.) (aqueous solution A).
- saline Otsuka Raw Food Injection 'Otsuka Pharmaceutical Co., Ltd.
- Benzyl alcohol (benzyl alcohol I. manufactured by Takasago International Inc.) 5.
- Tocoprol acetate to Og, stir and sonicate until completely dissolved, then castor oil (castor oil of Japanese Pharmacopoeia). 5.
- a solution in which Og was added and mixed completely was mixed with the aqueous solution A, and the emulsion type ophthalmic solution of the present invention was prepared using a high-pressure emulsifying apparatus.
- Example 3 An eye drop was prepared in the same manner as in Example 1, except that tocopherol acetate was replaced with indomethacin.
- An eye drop was prepared in the same manner as in Example 1 except that tocopherol acetate was replaced with prednisolone acetate valerate.
- a drop pill was prepared in the same manner as in Example 1 except that tocoprol acetate was replaced with nipradilol.
- An eye drop was prepared in the same manner as in Example 1, except that benzyl alcohol was replaced with crotamiton (crotamiton manufactured by Kongo Chemical Co., Ltd.).
- An eye drop was prepared in the same manner as in Example 1, except that tocopherol acetate was replaced by nipradilol and benzyl alcohol was replaced by crotamiton.
- An ophthalmic solution was prepared in the same manner as in Example 1 except that castor oil was replaced with sesame oil (refined sesame oil, manufactured by Takemoto Oil & Fat Co., Ltd.).
- An eye drop was prepared in the same manner as in Example 1, except that castor oil was replaced with olive oil (olive oil, manufactured by Hispanoriba).
- An eye drop was prepared in the same manner as in Example 1 except that benzyl alcohol was replaced with isopropanol (manufactured by Tokuyama Corporation).
- An eye drop was prepared in the same manner as in Example 1 except that benzyl alcohol was replaced with 2-ethynolei 1,3-hexanediol (manufactured by Wako Pure Chemical Industries, Ltd.).
- the ophthalmic preparations obtained in Examples 16 and Comparative Examples 15 were respectively placed in glass bottles, sealed and stored immediately after production and at 60 ° C for 1 day and 1 week to confirm the stability of the preparation. The stability was confirmed by visual inspection.
- the product was evaluated in three stages, i.e., when there was no separation of the drug, when there was slight separation, and when there was separation.
- the viscosities of Examples and Comparative Examples are as shown in the 14th revision of the Japanese Pharmacopoeia (B) General test method, 45. Viscosity measurement method, 2nd method rotational viscometer, (3) roundness, one-plate rotational viscosity.
- the viscosity was measured immediately after the production using a rheometer-AR-1000N (manufactured by TA-instmments) as a viscometer by the method described in the section of the meter. The results are shown in Table 1.
- Preparations containing sesame oil (Comparative Example 1) or olive oil (Comparative Example 2) instead of castor oil can be stored for 1 day under the condition of 60 ° C under the condition that the emulsion cannot be separated immediately after production. Separation was observed.
- Preparations containing isopropanol (Comparative Example 3) in place of benzyl alcohol or crotamiton can be separated immediately after production and after storage at 60 ° C for 1 day. Unrecognized brute force Separation was observed after storage for one week.
- Example 1-16 which is a product of the present invention, was stable immediately after production and after storage for 1 day and 1 week at 60 ° C, with no separation of emulsion.
- a uniform and stable eye drop that has a long-lasting effect of the drug, has an easily instilled viscosity, and has low irritation to the ocular mucosa.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54803704P | 2004-02-26 | 2004-02-26 | |
US60/548,037 | 2004-02-26 |
Publications (1)
Publication Number | Publication Date |
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WO2005082335A1 true WO2005082335A1 (ja) | 2005-09-09 |
Family
ID=34910976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/002899 WO2005082335A1 (ja) | 2004-02-26 | 2005-02-23 | 点眼剤 |
Country Status (1)
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WO (1) | WO2005082335A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998030221A1 (fr) * | 1997-01-10 | 1998-07-16 | Wakamoto Pharmaceutical Co., Ltd. | Composition de type emulsion huile/eau a usage ophtalmique et contenant du difluprednate |
WO1999063968A1 (fr) * | 1998-06-10 | 1999-12-16 | Wakamoto Pharmaceutical Co., Ltd. | Preparations aqueuses contenant des medicaments faiblement solubles |
-
2005
- 2005-02-23 WO PCT/JP2005/002899 patent/WO2005082335A1/ja active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998030221A1 (fr) * | 1997-01-10 | 1998-07-16 | Wakamoto Pharmaceutical Co., Ltd. | Composition de type emulsion huile/eau a usage ophtalmique et contenant du difluprednate |
WO1999063968A1 (fr) * | 1998-06-10 | 1999-12-16 | Wakamoto Pharmaceutical Co., Ltd. | Preparations aqueuses contenant des medicaments faiblement solubles |
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