WO2000067727A1 - Formulations galeniques d'agents antithrombiotques pour administration sous-cutanee - Google Patents
Formulations galeniques d'agents antithrombiotques pour administration sous-cutanee Download PDFInfo
- Publication number
- WO2000067727A1 WO2000067727A1 PCT/FR2000/001245 FR0001245W WO0067727A1 WO 2000067727 A1 WO2000067727 A1 WO 2000067727A1 FR 0001245 W FR0001245 W FR 0001245W WO 0067727 A1 WO0067727 A1 WO 0067727A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- suspension
- antithrombotic agent
- amino
- injectable suspension
- subcutaneous administration
- Prior art date
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- 239000003146 anticoagulant agent Substances 0.000 title claims abstract description 40
- 239000000203 mixture Substances 0.000 title claims abstract description 26
- 238000007920 subcutaneous administration Methods 0.000 title claims abstract description 18
- 229960004676 antithrombotic agent Drugs 0.000 title claims description 37
- 238000009472 formulation Methods 0.000 title abstract description 22
- 239000013078 crystal Substances 0.000 claims abstract description 21
- 230000002035 prolonged effect Effects 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims description 37
- 229920000642 polymer Polymers 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 229940102213 injectable suspension Drugs 0.000 claims description 11
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 11
- 239000011343 solid material Substances 0.000 claims description 9
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical group C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 8
- 229920001983 poloxamer Polymers 0.000 claims description 8
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 8
- 229940069328 povidone Drugs 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- -1 aminoiminomethyl Chemical group 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 6
- 238000010254 subcutaneous injection Methods 0.000 claims description 6
- 239000007929 subcutaneous injection Substances 0.000 claims description 6
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims description 6
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 5
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 5
- 238000009792 diffusion process Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- RVGRUAULSDPKGF-UHFFFAOYSA-N Poloxamer Chemical compound C1CO1.CC1CO1 RVGRUAULSDPKGF-UHFFFAOYSA-N 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 3
- 239000003966 growth inhibitor Substances 0.000 claims description 3
- 238000002663 nebulization Methods 0.000 claims description 3
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- 239000000375 suspending agent Substances 0.000 claims description 3
- HDTRYLNUVZCQOY-UHFFFAOYSA-N α-D-glucopyranosyl-α-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OC1C(O)C(O)C(O)C(CO)O1 HDTRYLNUVZCQOY-UHFFFAOYSA-N 0.000 claims description 2
- BISKEOIROPAOGY-RXQQAGQTSA-N (2s)-n-[(2s)-5-(diaminomethylideneamino)-1-oxopentan-2-yl]-1-[(2r)-2-(methylamino)-3-phenylpropanoyl]pyrrolidine-2-carboxamide;sulfuric acid Chemical compound OS(O)(=O)=O.C([C@@H](NC)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCN=C(N)N)C=O)C1=CC=CC=C1 BISKEOIROPAOGY-RXQQAGQTSA-N 0.000 claims description 2
- KZKRRZFCAYOXQE-UHFFFAOYSA-N 1$l^{2}-azinane Chemical group C1CC[N]CC1 KZKRRZFCAYOXQE-UHFFFAOYSA-N 0.000 claims description 2
- IIZPXYDJLKNOIY-JXPKJXOSSA-N 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCC\C=C/C\C=C/C\C=C/C\C=C/CCCCC IIZPXYDJLKNOIY-JXPKJXOSSA-N 0.000 claims description 2
- CDPROXZBMHOBTQ-SJORKVTESA-N 2-[[(2r)-3-cyclohexyl-1-[(2s)-2-[3-(diaminomethylideneamino)propylcarbamoyl]piperidin-1-yl]-1-oxopropan-2-yl]amino]acetic acid Chemical compound NC(N)=NCCCNC(=O)[C@@H]1CCCCN1C(=O)[C@H](NCC(O)=O)CC1CCCCC1 CDPROXZBMHOBTQ-SJORKVTESA-N 0.000 claims description 2
- BYDKEYCXCIVOOV-JTSKRJEESA-N 2-[[(2s)-4-[[(3s)-1-carbamimidoylpiperidin-3-yl]methylamino]-2-(naphthalen-2-ylsulfonylamino)-4-oxobutanoyl]-cyclopropylamino]acetic acid Chemical compound C1N(C(=N)N)CCC[C@H]1CNC(=O)C[C@@H](C(=O)N(CC(O)=O)C1CC1)NS(=O)(=O)C1=CC=C(C=CC=C2)C2=C1 BYDKEYCXCIVOOV-JTSKRJEESA-N 0.000 claims description 2
- 102000009027 Albumins Human genes 0.000 claims description 2
- 108010088751 Albumins Proteins 0.000 claims description 2
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 2
- 108010010803 Gelatin Proteins 0.000 claims description 2
- 229930195725 Mannitol Natural products 0.000 claims description 2
- LKJPYSCBVHEWIU-UHFFFAOYSA-N N-[4-cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)sulfonyl]-2-hydroxy-2-methylpropanamide Chemical compound C=1C=C(C#N)C(C(F)(F)F)=CC=1NC(=O)C(O)(C)CS(=O)(=O)C1=CC=C(F)C=C1 LKJPYSCBVHEWIU-UHFFFAOYSA-N 0.000 claims description 2
- 229920002845 Poly(methacrylic acid) Polymers 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- HDTRYLNUVZCQOY-WSWWMNSNSA-N Trehalose Natural products O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-WSWWMNSNSA-N 0.000 claims description 2
- 229940050528 albumin Drugs 0.000 claims description 2
- HDTRYLNUVZCQOY-LIZSDCNHSA-N alpha,alpha-trehalose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 HDTRYLNUVZCQOY-LIZSDCNHSA-N 0.000 claims description 2
- CRVGKGJPQYZRPT-UHFFFAOYSA-N diethylamino acetate Chemical compound CCN(CC)OC(C)=O CRVGKGJPQYZRPT-UHFFFAOYSA-N 0.000 claims description 2
- 238000009837 dry grinding Methods 0.000 claims description 2
- 229950009814 efegatran Drugs 0.000 claims description 2
- 108010078659 efegatran Proteins 0.000 claims description 2
- 238000004108 freeze drying Methods 0.000 claims description 2
- 229940014259 gelatin Drugs 0.000 claims description 2
- 239000008273 gelatin Substances 0.000 claims description 2
- 229920000159 gelatin Polymers 0.000 claims description 2
- 235000019322 gelatine Nutrition 0.000 claims description 2
- 235000011852 gelatine desserts Nutrition 0.000 claims description 2
- 239000012729 immediate-release (IR) formulation Substances 0.000 claims description 2
- 229950003291 inogatran Drugs 0.000 claims description 2
- 235000010445 lecithin Nutrition 0.000 claims description 2
- 239000000787 lecithin Substances 0.000 claims description 2
- 229940067606 lecithin Drugs 0.000 claims description 2
- 235000010355 mannitol Nutrition 0.000 claims description 2
- 239000000594 mannitol Substances 0.000 claims description 2
- DKWNMCUOEDMMIN-PKOBYXMFSA-N melagatran Chemical compound C1=CC(C(=N)N)=CC=C1CNC(=O)[C@H]1N(C(=O)[C@H](NCC(O)=O)C2CCCCC2)CC1 DKWNMCUOEDMMIN-PKOBYXMFSA-N 0.000 claims description 2
- 229960002137 melagatran Drugs 0.000 claims description 2
- 229950005835 napsagatran Drugs 0.000 claims description 2
- 229920001542 oligosaccharide Polymers 0.000 claims description 2
- 150000002482 oligosaccharides Chemical class 0.000 claims description 2
- 229960000502 poloxamer Drugs 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 238000013268 sustained release Methods 0.000 claims description 2
- 239000012730 sustained-release form Substances 0.000 claims description 2
- 230000002785 anti-thrombosis Effects 0.000 abstract 2
- 150000001875 compounds Chemical class 0.000 description 11
- 238000002360 preparation method Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000013081 microcrystal Substances 0.000 description 5
- 241000283973 Oryctolagus cuniculus Species 0.000 description 3
- 108090000190 Thrombin Proteins 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229960004072 thrombin Drugs 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000001990 intravenous administration Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 230000014508 negative regulation of coagulation Effects 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 229920003079 Povidone K 17 Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229940127219 anticoagulant drug Drugs 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 239000006172 buffering agent Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002577 cryoprotective agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940102215 extended release suspension Drugs 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000011806 microball Substances 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 230000036470 plasma concentration Effects 0.000 description 1
- 229920001992 poloxamer 407 Polymers 0.000 description 1
- 229940044476 poloxamer 407 Drugs 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
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
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
-
- 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
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P7/00—Drugs for disorders of the blood or the extracellular fluid
- A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
-
- 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
- A61K47/32—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers, poly(meth)acrylates, or polyvinyl pyrrolidone
-
- 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
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/19—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles lyophilised, i.e. freeze-dried, solutions or dispersions
Definitions
- the present invention relates to new formulations of antithrombotic agents for subcutaneous administration.
- the kinetics can be notably modified, in comparison with an intravenous administration. Thanks to these formulations, the diffusion of the antithrombotic agent can be slowed down from the injection site, in particular by the higher viscosity of the preparation in situ. Also, administration by the subcutaneous route is easier than intravenous administration, especially when the latter is administered by infusion. In particular, administration by the subcutaneous route may allow care at home, by a nurse or by the patient himself.
- the Applicant then developed new galenical formulations of antithrombotic agents for subcutaneous administration.
- antithrombotic agents for which these new galenical formulations are suitable are for example napsagatran, melagatran, inogatran or efegatran, as well as the compounds described in patent application WO 98/42700, that is to say derivatives of ⁇ / - (arginyl) benzenesulfonamide and for example (S) -N- hydrochloride [2 - [[[4 - [(aminoiminomethyl) amino] - 1 - [[(4-difluoromethylene) piperidine-1-yl] carbonyl ] butyI] amino] sulfonyl] -6-thien-2-ylphenyljpropanamide, (S) - ⁇ / - hydrochloride [2 - [[[[4- (aminoiminomethyl) amino)] - 1 - [(4-ethylpiperidin-1 - yl) carbonyl] butyl] amino] sulfonyl]
- the injectable suspensions thus obtained have a concentration of antithrombotic agent which can be between 1 and 100 mg / ml.
- the present invention therefore relates to a concentrated injectable suspension of antithrombotic agent for subcutaneous administration, characterized in that it contains an antithrombotic agent in the form of crystals having a diameter between 0.2 and 50 ⁇ m.
- the formulation according to the present invention can be immediate or prolonged release. These two types of formulations, described below, form part of the invention.
- the suspensions of the present invention can be obtained by various techniques, as described below. Their preparation can indeed go through the preparation of liquid or solid forms, before obtaining the final suspension ready for injection.
- formulations according to the present invention can thus contain the additives usually used for the preparation
- liquid pharmaceutical forms such as osmolarity agents, buffering agents, antioxidants and preservatives
- - dried forms obtained by cryodessiccation, nebulization, atomization .
- formulations according to the present invention may also contain other additional substances used for the dried forms such as cryoprotectants of lyophilisate, for example mannitol, trehalose or other oligosaccharides.
- the formulations according to the present invention may also contain other additional substances used for liquid forms such as crystal growth inhibitors, for example povidone, lecithin, gelatin or albumin and / or agents suspension, for example, povidone.
- the sustained release formulations are characterized in that they additionally contain a substance capable of increasing the viscosity of the suspension. Prolonged release formulations which can form a gel are particularly advantageous.
- gelling polymers after diffusion of the organic solvent from the subcutaneous injection site such as poly (methacrylic acid) or poly (/ V- isopropyl-acrylamide-b-DL-iactide), the latter excipients which may or may not be complexed with polyethylene glycol.
- pH-sensitive gelling polymers that is to say for which the gelling is caused by the passage from an acidic to neutral pH
- polyvinyiacetal diethylaminoacetate examples include polyvinyiacetal diethylaminoacetate.
- the preferred heat-sensitive polymers such as poloxamers (Lutrol F127 ®, Lutrol F68 ®, BASF).
- the viscosity of the formulation then increases in situ thanks to the temperature differential and allows a slow release of the antithrombotic agent.
- a mixture of the polymers described above can also be used.
- the suspensions of antithrombotic agents ready for injection can be prepared in the following manner, in several stages:
- the first step may consist in the preparation of a suspension of small particles, by adding the antithrombotic agent to the suspension liquid, which may contain a suspension agent and / or one or more surfactants such as, for example, poloxamers 188 and 407, with vigorous stirring.
- the size of the particles of antithrombotic agent can then be reduced by conventional methods of grinding, in a liquid medium using, for example, a microbead mill, to obtain a suspension of crystals of antithrombotic agent.
- This suspension of crystals of antithrombotic agent can be used directly for injection, but for reasons of conservation, set out below, it is preferable to carry out a second step described below.
- a solid material containing small particles, the size of which is reduced and / or controlled for the crystals of larger diameter, either by dry grinding, for example by micronization or by selection. particle size on sieve.
- the crystals of antithrombotic agent which are obtained in this first stage can then have a diameter of between 0.2 and 50 ⁇ m.
- the crystals of antithrombotic agent which are obtained in this first stage may have a diameter of between 1 and 50 ⁇ m.
- the concentrated suspension for injection of crystals of antithrombotic agent obtained, intended for subcutaneous administration is in the form of crystals having a diameter between 0.2 and 50 ⁇ m and in particular between 1 and 50 ⁇ m.
- This suspension of crystals of antithrombotic agent can moreover have a certain instability and in particular let appear a troublesome recrystallization, that is to say a modification of the shape of the crystals and a growth of the latter.
- the present invention therefore also relates to new stable formulations of antithrombotic agent for subcutaneous administration, as well as their methods of preparation.
- the new stable formulations can in particular be prepared as follows:
- the suspension of crystals of antithrombotic agent obtained above is stabilized by the addition of a hydrophilic polymer such as povidone, then a lyophilization is carried out according to techniques known to those skilled in the art.
- a lyophilisate is obtained which can be stored in a sealed container under a controlled atmosphere.
- Another advantage of this step is to avoid the proliferation of microorganisms in an aqueous medium.
- the last step of obtaining suspensions ready for injection, immediate or prolonged release, according to the present invention is carried out from the lyophilisate, the nebulisate, the atomisate or the solid material obtained directly by grinding dry as described above.
- an immediate-release suspension ready for injection by the subcutaneous route, can be obtained by extemporaneously dispersing the lyophilisate, the nebuliser, the atomisate or the solid material by adding water or any other suitable solvent. such as physiological solutions.
- An extended-release suspension ready for subcutaneous injection, can be obtained by extemporaneously suspending the lyophilisate, nebulisate, atomisate or solid material by adding a solution containing the polymer intended to increase the viscosity of the suspension.
- the solvent used can be water.
- the solvent used can be a mixture of ethanol and water.
- the medium can be a buffer solution at a pH such that the polymer is not in gelled form.
- the solvent used can be water with 12 to 20% by weight of poloxamer.
- concentrations of antithrombotic agent of the suspensions ready for injection thus obtained are between 1 and 100 mg / ml.
- the reconstitution that is to say the suspension of the lyophilisate, of the nebulisate, of the atomisate or of the solid material does not cause any significant variation in the size of the particles which remains between 0.2 and 50 ⁇ m.
- Example 1 Preparation of a suspension of microcrystals of the compound, with unmodified release, for subcutaneous administration The following constituents are dissolved:
- the lyophilisate is reconstituted with 1 ml of ppi water. Vigorously stirred for about 30 seconds. The suspension obtained is ready for injection. After reconstitution, the compound concentration is 2.9 mg / ml and the particle size is 6 ⁇ m.
- the compound is sieved through a 45 ⁇ m mesh sieve to remove large particles.
- the median particle diameter is 14 ⁇ m and 90% of the particles have a size less than 36 ⁇ m. This measurement is done by size analysis granulometer Malvern Mastersizer ®.
- Example 3 Preparation of a suspension of microcrystals of high viscosity, intended for prolonged release
- the sample crystals 2 It is reconstituted using 1 ml of a solution of poloxamer 407 (Lutrol ®, BASF) 15.5% by weight and the suspension thus obtained, ready for injection.
- poloxamer 407 Litrol ®, BASF
- the concentration of compound, measured as in Example 1, is 2.9 mg / ml and the particle size, measured as in Example 1, is 15 ⁇ m.
- the absolute viscosity is measured at 20 ° C and 35 ° C (with a Brookfield DVII + viscometer) which are 30 cP and 45,000 cP respectively.
- the volume injected is 170 ⁇ l / kg (0.5 mg / kg) of animal.
- a blood sample (3 ml) is taken using a 0.8 x 25 mm Insyte catheter ( France Médical Biology) implanted in the artery of the ear.
- the thrombin time is determined chronometrically. The thrombin time is expressed in seconds.
- TT thrombin time
- the average percentages of increase ( ⁇ s.e.m.) are calculated for each sampling time.
- microcrystals prolongs the anticoagulant duration of the compound compared to the effect of the aqueous solution.
- the addition of a heat-sensitive gel to the microcrystals further prolongs the duration of anticoagulant activity.
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- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
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- Chemical & Material Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Epidemiology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Diabetes (AREA)
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
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Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU45748/00A AU4574800A (en) | 1999-05-11 | 2000-05-09 | Galenic formulations of antithrombotic agents for subcutaneous administration |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR99/05975 | 1999-05-11 | ||
FR9905975A FR2793418B1 (fr) | 1999-05-11 | 1999-05-11 | Formulations galeniques d'agents antithrombotiques pour administration sous-cutanee |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000067727A1 true WO2000067727A1 (fr) | 2000-11-16 |
Family
ID=9545447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2000/001245 WO2000067727A1 (fr) | 1999-05-11 | 2000-05-09 | Formulations galeniques d'agents antithrombiotques pour administration sous-cutanee |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU4574800A (fr) |
FR (1) | FR2793418B1 (fr) |
WO (1) | WO2000067727A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6479078B1 (en) | 1999-07-02 | 2002-11-12 | Astrazeneca Ab | Substantially crystalline form of melagatran |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3356732A (en) * | 1966-03-29 | 1967-12-05 | Gen Electric | 2-[p-(phenylsulfonyl) phenyl]-1, 3-indanedione and its tautomer |
US4474752A (en) * | 1983-05-16 | 1984-10-02 | Merck & Co., Inc. | Drug delivery system utilizing thermosetting gels |
GB2201089A (en) * | 1987-01-30 | 1988-08-24 | Ciba Geigy Ag | Parenteral suspensions of diclofenac |
US5534270A (en) * | 1995-02-09 | 1996-07-09 | Nanosystems Llc | Method of preparing stable drug nanoparticles |
WO1997039770A1 (fr) * | 1996-04-24 | 1997-10-30 | Astra Aktiebolag | Nouvelle formulation pharmaceutique d'un inhibiteur de la thrombine pour une utilisation parenterale |
WO1998042700A1 (fr) * | 1997-03-20 | 1998-10-01 | Sanofi-Synthelabo | Derives de n-(arginyl)benzenesulfonamide et leur utilisation comme agents antithrombotiques |
-
1999
- 1999-05-11 FR FR9905975A patent/FR2793418B1/fr not_active Expired - Fee Related
-
2000
- 2000-05-09 AU AU45748/00A patent/AU4574800A/en not_active Abandoned
- 2000-05-09 WO PCT/FR2000/001245 patent/WO2000067727A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3356732A (en) * | 1966-03-29 | 1967-12-05 | Gen Electric | 2-[p-(phenylsulfonyl) phenyl]-1, 3-indanedione and its tautomer |
US4474752A (en) * | 1983-05-16 | 1984-10-02 | Merck & Co., Inc. | Drug delivery system utilizing thermosetting gels |
GB2201089A (en) * | 1987-01-30 | 1988-08-24 | Ciba Geigy Ag | Parenteral suspensions of diclofenac |
US5534270A (en) * | 1995-02-09 | 1996-07-09 | Nanosystems Llc | Method of preparing stable drug nanoparticles |
WO1997039770A1 (fr) * | 1996-04-24 | 1997-10-30 | Astra Aktiebolag | Nouvelle formulation pharmaceutique d'un inhibiteur de la thrombine pour une utilisation parenterale |
WO1998042700A1 (fr) * | 1997-03-20 | 1998-10-01 | Sanofi-Synthelabo | Derives de n-(arginyl)benzenesulfonamide et leur utilisation comme agents antithrombotiques |
Non-Patent Citations (1)
Title |
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S. BUDAVARI ET AL.: "THE Merck INDEX twelth edition", 1996, MERCK & CO., INC., WHITEHOUSE STATION NJ (US), XP002127652 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6479078B1 (en) | 1999-07-02 | 2002-11-12 | Astrazeneca Ab | Substantially crystalline form of melagatran |
EP1196431B1 (fr) * | 1999-07-02 | 2006-09-13 | AstraZeneca AB | Forme sensiblement cristalline du melagatran |
Also Published As
Publication number | Publication date |
---|---|
FR2793418A1 (fr) | 2000-11-17 |
AU4574800A (en) | 2000-11-21 |
FR2793418B1 (fr) | 2001-07-27 |
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