WO2003037355A1 - Compositions de polyacrylate destinees a etre utilisees pour la protection de la muqueuse - Google Patents
Compositions de polyacrylate destinees a etre utilisees pour la protection de la muqueuse Download PDFInfo
- Publication number
- WO2003037355A1 WO2003037355A1 PCT/GB2002/004906 GB0204906W WO03037355A1 WO 2003037355 A1 WO2003037355 A1 WO 2003037355A1 GB 0204906 W GB0204906 W GB 0204906W WO 03037355 A1 WO03037355 A1 WO 03037355A1
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- WIPO (PCT)
- Prior art keywords
- biological response
- response modifier
- radiation
- mucoadhesive
- treatment
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- 229940124326 anaesthetic agent Drugs 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 229920001222 biopolymer Polymers 0.000 description 1
- 229940036350 bisabolol Drugs 0.000 description 1
- HHGZABIIYIWLGA-UHFFFAOYSA-N bisabolol Natural products CC1CCC(C(C)(O)CCC=C(C)C)CC1 HHGZABIIYIWLGA-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229960003563 calcium carbonate Drugs 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000006727 cell loss Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012829 chemotherapy agent Substances 0.000 description 1
- 239000007910 chewable tablet Substances 0.000 description 1
- 229940068682 chewable tablet Drugs 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 230000003021 clonogenic effect Effects 0.000 description 1
- 206010009887 colitis Diseases 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- ZAKOWWREFLAJOT-UHFFFAOYSA-N d-alpha-Tocopheryl acetate Natural products CC(=O)OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C ZAKOWWREFLAJOT-UHFFFAOYSA-N 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- XXJWXESWEXIICW-UHFFFAOYSA-N diethylene glycol monoethyl ether Chemical compound CCOCCOCCO XXJWXESWEXIICW-UHFFFAOYSA-N 0.000 description 1
- 229940075557 diethylene glycol monoethyl ether Drugs 0.000 description 1
- 229940095399 enema Drugs 0.000 description 1
- 229940079360 enema for constipation Drugs 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 239000003193 general anesthetic agent Substances 0.000 description 1
- 229960005150 glycerol Drugs 0.000 description 1
- 125000003976 glyceryl group Chemical group [H]C([*])([H])C(O[H])([H])C(O[H])([H])[H] 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000007902 hard capsule Substances 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 229920002674 hyaluronan Polymers 0.000 description 1
- 229960003160 hyaluronic acid Drugs 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229940016286 microcrystalline cellulose Drugs 0.000 description 1
- 235000019813 microcrystalline cellulose Nutrition 0.000 description 1
- 239000008108 microcrystalline cellulose Substances 0.000 description 1
- 230000000051 modifying effect Effects 0.000 description 1
- 235000011929 mousse Nutrition 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 239000007935 oral tablet Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000069 prophylactic effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229940108325 retinyl palmitate Drugs 0.000 description 1
- VYGQUTWHTHXGQB-FFHKNEKCSA-N retinyl palmitate Natural products CCCCCCCCCCCCCCCC(=O)OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C VYGQUTWHTHXGQB-FFHKNEKCSA-N 0.000 description 1
- 235000019172 retinyl palmitate Nutrition 0.000 description 1
- 239000011769 retinyl palmitate Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 210000000813 small intestine Anatomy 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007901 soft capsule Substances 0.000 description 1
- 238000013223 sprague-dawley female rat Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003637 steroidlike Effects 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000000829 suppository Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 210000005182 tip of the tongue Anatomy 0.000 description 1
- 229940042585 tocopherol acetate Drugs 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 150000003712 vitamin E derivatives Chemical class 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Classifications
-
- 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
- A61K31/74—Synthetic polymeric materials
- A61K31/765—Polymers containing oxygen
- A61K31/78—Polymers containing oxygen of acrylic acid or derivatives thereof
Definitions
- the present invention relates to the use of mucoadhesive agents for the prevention and treatment of radiation and chemotherapy induced damage to mucosal surfaces and to compositions therefore.
- Damage to mucosal surfaces may lead to immediate symptoms (early damage) but also to symptoms which only appear months or even years after treatment (late damage) .
- compositions for the treatment of oral mucositis have been proposed in the prior art.
- Int. J. Radiation Oncology, 1998, 40(5), 1033-1037 (M. Oguchi et al.) describes a mucoadhesive water-soluble polymer film comprising hydroxypropyl cellulose dissolved in ethyl alcohol containing anaesthetic agents and antibiotics.
- This paper addresses the roles of pain and secondary infections produced by damage to the mucosae and concomitant invasion into the damaged areas of micro organisms.
- the paper does not disclose any treatment which is designed to accelerate the healing process (i.e. biological response modifiers) , although good protection of the mucosal surfaces will, in itself, allow the normal repair processes to occur.
- the treatment disclosed is designed as a palliative (pain relief) and prophylactic (antibiotic) .
- Medline Abstract Accession No. 90375985 discloses the use of sodium alginate on the treatment of oral mucositis associated with radiotherapy. This paper discloses the use only of sodium alginate as a protective film forming agent. No biological response modification is disclosed. Strahlenther. Onkol . 173 (1997), 247-252 (C.
- Belka et al. discloses the use of polyaluminium- sucrose complex sucralfate compositions for the prevention and treatment of mucosal reactions.
- Sucralfate does have biological response modifying activity as well as mucous-adhesive properties, the problems associated with its use are two-fold. The first is the quantity of compound required, certainly for head and neck and other oropharyngeal treatments where a slurry of 1+ gm sucralfate is required several times/day (together with only very modest benefits to these treatment areas) .
- the second problem is associated with an aluminium- containing compound which may be considered to interact with continued radiation treatment, thereby ruling out this particular approach until after the cessation of radiotherapy.
- WO 92/03124 discloses a polymeric complex composition formed by the interaction of a polycarbophil component with alginic acid or a salt thereof in the presence of a divalent cation and an active agent which is a medicinal or cosmetic agent.
- the composition provides a suitable delivery system for the delivery of active agents to the oral, buccal or gingival skin or mucosa over a period of time. There is no disclosure of the use of such compositions for the prevention, reduction or treatment of radiation damage.
- WO 96/13973 discloses compositions having high bioadhesion, mucoadhesion and viscoelasiticity containing mixtures of synthetic polymers, such as polyvinyl alcohol and polycarbophil, and of biopolymers such as alginic acid, hyaluronic acid and dermatan sulphate.
- synthetic polymers such as polyvinyl alcohol and polycarbophil
- biopolymers such as alginic acid, hyaluronic acid and dermatan sulphate.
- the compositions are stated to be useful in the treatment of skin and mucosal tissue dryness and dehydration. There is no disclosure of the use of such compositions for the prevention, reduction or treatment of radiation damage .
- US-A-5750136 discloses a bioadhesive composition that adheres to a mucosal surface and which is capable of delivering drugs in a sustained fashion.
- the mucoadhesive composition is preferably provided as a patch for adhesion to mucosal surfaces, such as the oral mucose. There is no disclosure of the use of the compositions or patches for the prevention, reduction or treatment of radiation damage.
- WO 97/47310 disclosed the use of glyceryl poly (meth) acrylate gel based pharmaceutical compositions locally applied for the treatment of various conditions, including the treatment of light burns and post-radiotherapy burns. There is no disclosure in this document of the incorporation of biological response modifiers into the compositions.
- JP-A-7316038 discloses a sustained release composition which is based upon an acrylic acid- alkyl (meth) acrylate copolymer and which incorporates a drug such as an angiotonic agent, antiallergenic agent, antibiotic, antibacterial agent or anti- inflammatory agent therein.
- EP-A-0516141 discloses a sustained release pharmaceutical composition which comprises a bioadhesive polymer and at least one active ingredient.
- the bioadhesive polymer is preferably a mucoadhesive polymer.
- a mucoadhesive agent which is a polyacrylate or a salt thereof and a biological response modifier for the preparation of a pharmaceutical composition for simultaneous or sequential use in the prevention or treatment of radiation and/or chemotherapy induced damage to mucosal surfaces.
- compositions of the present invention possess the advantages that a known film-forming agent can be used which can bind reversibly to mucous thus offering some mechanical protection to areas of underlying tissue where a depleted supply of mucous exists.
- Polyacrylate mucoadhesive agents are known to slow the rate of gastric transit, thereby maximising the efficiency of both the protective effect and the time required for delivery of repair agents into the underlying tissue.
- the composition which is used in the present invention either comprises or is co-administered with a biological response modifier.
- the polyacrylate mucoadhesive agents used in the present invention are considered to be those agents capable of reversible adhesion to mucus or a mucosal surface.
- the polyacrylate compositions which are used in the present invention may contain low levels, e.g.. up to 10% by weight, preferably less that 1% by weight of a polyol, such as glycerol. Most preferably, however, the polyacrylate is used as the sole gelling agent in the composition of the present invention.
- the polyacrylate mucoadhesive agent is a carbomer e.g.
- the mucoadhesive agent is a pharmaceutically acceptable grade of carbomer (e.g. Carbopol 974PNF) or a salt thereof (e.g. sodium carbomer) . Mixtures of the above mucoadhesive agents may also be used.
- carbomer for the preparation of a pharmaceutical composition for the prevention or treatment of radiation induced early damage to the mucosa surface of the gastro intestinal tract of a mammal.
- the mammal is a human.
- the mucoadhesive agents may be applied to the mucosal surfaces in doses ranging from 10 mg to lOg, preferably 100 mg to 4g, more preferably 200 mg to 2g and most preferably 400 mg to lg.
- BRM's are those agents known to be active in the repair or regeneration of damage caused to normal tissue.
- BRM's include any agent capable of inducing a modification of the biological response of normal mucosae to radiation and/or chemotherapy.
- Suitable BRM's include vitamins (e.g. A, E,,B5 or C) and their esters and precursors; prostaglandins (e.g.
- PG X and their fatty acid precursors and esters/salts thereof; sulphur containing amino acids; dimethyl sulphoxide; methyl sulphonylmethane and alkyl sulphoxides and sulphonyl compounds of the form R 1 R 2 SO or R 1 R 2 S0 2 (wherein R ⁇ and R 2 are independently selected from alkyl CI to C12, preferably CI, C8 or CIO) ; non steroidal anti flammatory agents (e.g. benzydamine) ; acetyl salicylic acid; growth factors (e.g.
- BRM epidermal growth factor
- tumour necrosing factors and evening primrose oil, borage oil, sea-buckthorn oil or extracts thereof, lanolin or derivatives thereof and other oils of vegetable, animal or marine origin either wholly natural or semi-synthetic in origin and containing single or multiple unsaturated carbon-carbon bonds.
- the BRM is benzydamine.
- BRM's may also be adduced from a miscellaneous group of natural compounds known to have wound healing or skin regenerating activities e.g. allantoin, bisabolol and oils or essences or active fractions prepared from plant tissue e.g. Aloa Vera, or andrographis; provided that they are acceptable for the specific purpose intended.
- the biological response modifiers may preferably be selected for their ability to stimulate surviving clonogenic stem regrowth in the treated tissue. Mixtures of one or more BRM's may be used in the invention.
- the preferred concentrations of the BRM's in the pharmaceutical compositions used in the present invention are between 0.001 and 20% by weight of the pharmaceutical composition, the actual concentration depending upon the intrinsic activity of the BRM and the tissue being treated.
- growth factors and prostaglandins find their concentration in the range 0.001 to 2.0% of the pharmaceutical composition, whereas vegetable or marine oils are preferably in the range 5 - 20%.
- Most other agents described herein as BRM's will find their concentration intermediate between these ranges.
- a combination of BRM's and mucoadhesive agents of the invention may be particularly efficacious for the treatment of damage at mucosal surfaces, as the mucoadhesive agent will act to hold the BRM's at the surface (i.e. targeted delivery).
- a method of preventing or treating radiation and/or chemotherapy induced damage to a mucosal surface which comprises administering a pharmaceutically effective amount of a mucoadhesive agent, which is a polyacrylate or a salt thereof, in combination with or sequentially with a biological response modifier, to the mucosal surface.
- a method for the prevention or treatment of radiation induced early damage to a mucosal surface of the gastro intestinal tract comprising administering a pharmaceutically effective amount of carbomer, in combination with or sequentially with a biological response modifier, to the mucosal surface.
- compositions used in the present invention may be in any conventional pharmaceutical form, depending upon the size of the dose required and the site to which it is to be administered.
- the compositions may therefore include conventional formulation excipients according to the form of the composition.
- compositions comprising up to 20% w/v mucoadhesive
- gel compositions comprising up to 20% w/v mucoadhesive
- buccal compositions comprising 10 to 500 mg mucoadhesive
- enemas comprising 10 mg to 2 g per 100ml mucoadhesive
- pessaries comprising 10 mg to 1 g mucoadhesive
- suppositories comprising 20 mg to 2 g mucoadhesive
- mousse compositions comprising up to 20% mucoadhes
- compositions may be produced using conventional techniques well known in the art. it will be understood that multiple units of a particular composition may need to be administered (or mixtures of two or more compositions types may be used) to achieve very high mucoadhesive doses.
- the mucoadhesive agent and the BRM are intended to be administered to a particular mucosal surface within the gastrointestinal tract
- the composition containing the mucoadhesive agent and optionally the BRM may need to be modified to allow the mucoadhesive agent and BRM to reach that area.
- oral tablets or capsules may be enterically coated so that the mucoadhesive and BRM are not released until the composition reaches the small intestine.
- compositions may be designed to stay in the stomach and not to progress further along the gastrointestinal tract if protection or treatment is only needed in the stomach. If the whole gastrointestinal tract is to be protected or treated simple oral administration may suffice, as the mucoadhesive will adhere all along the tract. Furthermore mucoadhesive agents which bind to upper regions of the mucosal tract may be rebound at lower regions following the sloughing off from the mucosal surface of the upper regions. Dosing frequency of the pharmaceutical compositions may be up to 8 times daily during the first 48 hours following radiation therapy, or up to 4 times daily at other times.
- Suitable mucosal surfaces include the gastro intestinal tract, oral, nasal, vaginal, rectal and oesophageal surfaces, plus the bladder and anus. Most particularly the mucoadhesive agents may be used for the treatment or prevention of radiation or chemotherapy induced damage to the mucosal surfaces of the gastro intestinal tract. All forms of radiation or chemotherapy induced damage to mucosal surfaces may be prevented or treated by the methods and/or compositions of the invention, most particularly early damage.
- a mucoadhesive agent which is a. polyacrylate or a salt thereof; ii) a biological response modifier; and i ⁇ ) instructions for the use thereof in the prevention or treatment of radiation and/or chemotherapy induced damage to mucosal surfaces.
- Carbopol 974PNF 100 Sodium bicarbonate 100 Calcium carbonate 100 Methyl paraben 30 Propyl paraben 4 . 5 Sodium Saccharin 5 Natural source Vitamin E 1 . 0 Dexpanthenol (85% w/v) 12 . 5 Flavour 5 ⁇ l Sodium hydroxide solution (20%) qs
- the carbomer is dispersed in 2/3 of the deionised water in a first vessel and neutralised with the sodium hydroxide solution.
- the sodium bicarbonate is dispersed in a small amount of deionised water in a separate vessel and then added to the neutralised carbomer and mixed (carbomer phase) .
- the calcium carbonate, sodium saccharin, methyl paraben, propyl paraben, Vitamin E and dexpanthenol are dispersed in deionised water in a second vessel (dispersion phase) .
- flavour is added and the volume adjusted with deionised water, and the final pH of the gel formulation adjusted to pH 8.2 with sodium hydroxide solution.
- Groups of 40 female Sprague-Dawley rats were divided into five treatment groups. Each subgroup received a standardised dose of ⁇ -radiation from a 9 o Sr / 9 ⁇ ⁇ pi ague to the tip of the tongue. The time of application was varied to give a dose escalation of radiation and mucositis incidence as follows: Group No. Radiation Dose Incidence of
- Aerosol delivery system 0.5mg Vitamin E in ethanol/diethylene glycol monoethyl ether solution, 50 l/delivery.
- the application of each formulation commenced 24 hours after the irradiation and continued daily for two weeks. Scoring of the tissue response was carried out independently by two trained observers.
- the saline controls exhibited a nil response to the treatment, each of the irradiation groups exhibiting a response in line with historic controls (ED50 14.8 Gy, historic control 14.9 ⁇ 0.6 Gy) .
- the Vitamin E spray exhibited only a small and nonsignificant modification to the ED50 value (15.4 ⁇ 0.8 Gy) , whereas the gel-based formulation of the invention gave a highly significant alteration to the ED50 of 17.7 ⁇ 0.9 Gy - a dose modification factor of 1.25 ⁇ 0.08 (Observer 1) or 1.17 ⁇ 0.06 (Observer 2) .
- the mucin-binding carbomer formulation of the invention containing Vitamin E and dexpanthenol exhibits a significant effect on the course of radiation- induced damage to mucous membranes/tissue.
- the calcium carbonate, sodium bicarbonate, microcrystalline cellulose and mannitol are sieved through a 500 ⁇ a (30#) sieve, added to the carbomer and blended in a high speed food processor.
- the granules are dried at 60°C in a fluid bed drier for 25 minutes before screening through an 850 ⁇ (18#) sieve. 4.
- the xylitol, benzydamine hydrochloride citric acid and aspartame are screened through a 500 ⁇ m (30#) sieve, added to the dried granules and mixed in a high speed food processor.
- the granules are dried at 600°C in a fluid bed drier for 25 minutes before screening through an 850 ⁇ m (18#) sieve.
- the flavour and magnesium stearate are added to the dried granules and blended for 3 minutes.
- the granules are formed into tablets by pressing on a tablet press to give tablets with a weight of Ig.
- the carbomer is dispersed in 1/3 of the deionised water in a suitable mixing vessel . 2. A further 1/3 of the deionised water is added and the solution neutralised with the sodium hydroxide solution. 3. The sodium chloride and benzydamine hydrochloride, are dissolved in deionised water, added to the neutralised carbomer and the final volume adjusted with deionised water. 4. The final pH is adjusted using sodium hydroxide solution to within the range 7.45 - 7.55.
- the sodium bicarbonate is dispersed in a small amount of deionised water in a separate vessel and then added to the neutralised carbomer and mixed (carbomer phase) .
- the calcium carbonate, sodium saccharin, methyl paraben, propyl paraben and methyl sulphonylmethane are dispersed in deionised water in a second vessel (dispersion phase) .
- Vitamin E adsorbate 250 1U The process of Example 3 is used except that the Vitamin E adsorbate is added at the same time as the sodium bicarbonate, citric acid, flavour, aspartame and acesulfame K.
- the aqueous phase is slowly added to the oil phase, increasing the mixing speed until uniformity is achieved.
- the final pH of the product is adjusted using sodium hydroxide solution to within the range 7.4 - 8.0.
- Panthenol 12 The process of Example 6 is used adding Vitamin A and Vitamin E esters to the oil phase and adding panthenol to the aqueous phase.
- Deionised water to 10ml 1.
- the carbomer is dispersed in 2/3 of the deionised water in a first vessel and neutralised with the sodium hydroxide solution.
- the sodium bicarbonate is dispersed in a small amount of deionised water in a separate vessel and then added to the neutralised carbomer and mixed (carbomer phase) .
- the calcium carbonate, glycerol, methyl paraben, propyl paraben and deqlycerrhised liquorice extract are dispersed in deionised water in a second vessel (dispersion phase) .
- flavour is added and the volume adjusted with deionised water.
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicinal Preparation (AREA)
Abstract
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02774957A EP1441745A1 (fr) | 2001-10-30 | 2002-10-30 | Compositions de polyacrylate destinees a etre utilisees pour la protection de la muqueuse |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0126064A GB0126064D0 (en) | 2001-10-30 | 2001-10-30 | Improvements in or relating to organic compositions |
| GB0126064.5 | 2001-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003037355A1 true WO2003037355A1 (fr) | 2003-05-08 |
Family
ID=9924819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB2002/004906 WO2003037355A1 (fr) | 2001-10-30 | 2002-10-30 | Compositions de polyacrylate destinees a etre utilisees pour la protection de la muqueuse |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1441745A1 (fr) |
| GB (1) | GB0126064D0 (fr) |
| WO (1) | WO2003037355A1 (fr) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1660101A4 (fr) * | 2003-08-21 | 2010-02-24 | Access Pharma Inc | Preparations liquides pour la prevention et le traitement de maladies et de troubles de muqueuses |
| US20110159089A1 (en) * | 2007-08-13 | 2011-06-30 | Inspirion Delivery Technologies, Llc | Abuse resistant drugs, method of use and method of making |
| US9220759B2 (en) | 2012-02-23 | 2015-12-29 | Abbott Cardiovascular Systems Inc. | Treatment of diabetic patients with a drug eluting stent and adjunctive therapy |
| US9220584B2 (en) | 2012-03-30 | 2015-12-29 | Abbott Cardiovascular Systems Inc. | Treatment of diabetic patients with a stent and locally administered adjunctive therapy |
| WO2016023924A1 (fr) | 2014-08-11 | 2016-02-18 | Perora Gmbh | Procédé d'induction de la satiété |
| WO2016023923A1 (fr) | 2014-08-11 | 2016-02-18 | Perora Gmbh | Formulation comprenant des particules |
| WO2017005887A1 (fr) | 2015-07-07 | 2017-01-12 | Perora Gmbh | Composition comprenant des particules induisant une satiété |
| US9789071B2 (en) | 2012-06-27 | 2017-10-17 | G2B Pharma, Inc. | Intranasal formulation of epinephrine for the treatment of anaphylaxis |
| US11234935B2 (en) | 2015-07-07 | 2022-02-01 | Perora Gmbh | Method of inducing satiety |
| US11617716B2 (en) | 2021-06-10 | 2023-04-04 | Belhaven BioPharma Inc. | Dry powder formulations of epinephrine and associated methods |
| US12005185B2 (en) | 2021-12-17 | 2024-06-11 | Belhaven BioPharma Inc. | Medical counter measures including dry powder formulations and associated methods |
| US12414916B2 (en) | 2021-06-10 | 2025-09-16 | Belhaven BioPharma Inc. | Dry powder formulations of epinephrine and associated methods |
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- 2002-10-30 WO PCT/GB2002/004906 patent/WO2003037355A1/fr not_active Application Discontinuation
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| US20120156277A1 (en) * | 2007-08-13 | 2012-06-21 | Inspirion Delivery Technologies, Llc | Abuse resistant drugs, method of use and method of making |
| US20120164209A1 (en) * | 2007-08-13 | 2012-06-28 | Inspirion Delivery Technologiies, Llc | Abuse resistant drugs, method of use and method of making |
| US10736852B2 (en) * | 2007-08-13 | 2020-08-11 | OHEMO Life Sciences, Inc. | Abuse resistant oral opioid formulations |
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| US9220759B2 (en) | 2012-02-23 | 2015-12-29 | Abbott Cardiovascular Systems Inc. | Treatment of diabetic patients with a drug eluting stent and adjunctive therapy |
| US9220584B2 (en) | 2012-03-30 | 2015-12-29 | Abbott Cardiovascular Systems Inc. | Treatment of diabetic patients with a stent and locally administered adjunctive therapy |
| US9750627B2 (en) | 2012-03-30 | 2017-09-05 | Abbott Cardiovascular Systems Inc. | Treatment of diabetic patients with a stent and locally administered adjunctive therapy |
| US10806709B2 (en) | 2012-06-27 | 2020-10-20 | G2B Pharma, Inc. | Intranasal formulation of epinephrine for the treatment of anaphylaxis |
| US9789071B2 (en) | 2012-06-27 | 2017-10-17 | G2B Pharma, Inc. | Intranasal formulation of epinephrine for the treatment of anaphylaxis |
| EP3679924A2 (fr) | 2014-08-11 | 2020-07-15 | perora GmbH | Formulation comprenant des particules |
| WO2016023923A1 (fr) | 2014-08-11 | 2016-02-18 | Perora Gmbh | Formulation comprenant des particules |
| WO2016023924A1 (fr) | 2014-08-11 | 2016-02-18 | Perora Gmbh | Procédé d'induction de la satiété |
| US11311570B2 (en) | 2014-08-11 | 2022-04-26 | Perora Gmbh | Method of inducing satiety |
| US11504330B2 (en) | 2014-08-11 | 2022-11-22 | Perora Gmbh | Formulation comprising particles containing a water-swellable or water-soluble polymeric component and a lipid component |
| WO2017005887A1 (fr) | 2015-07-07 | 2017-01-12 | Perora Gmbh | Composition comprenant des particules induisant une satiété |
| US11234935B2 (en) | 2015-07-07 | 2022-02-01 | Perora Gmbh | Method of inducing satiety |
| US11617716B2 (en) | 2021-06-10 | 2023-04-04 | Belhaven BioPharma Inc. | Dry powder formulations of epinephrine and associated methods |
| US11872308B2 (en) | 2021-06-10 | 2024-01-16 | Belhaven BioPharma Inc. | Dry powder formulations of epinephrine and associated methods |
| US12097287B2 (en) | 2021-06-10 | 2024-09-24 | Belhaven BioPharma Inc. | Dry powder formulations of epinephrine and associated methods |
| US12414916B2 (en) | 2021-06-10 | 2025-09-16 | Belhaven BioPharma Inc. | Dry powder formulations of epinephrine and associated methods |
| US12005185B2 (en) | 2021-12-17 | 2024-06-11 | Belhaven BioPharma Inc. | Medical counter measures including dry powder formulations and associated methods |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0126064D0 (en) | 2001-12-19 |
| EP1441745A1 (fr) | 2004-08-04 |
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