WO1996006623A1 - Compositions antithrombotiques et non hemorragiques a base d'heparine, procede pour leur preparation et applications therapeutiques - Google Patents
Compositions antithrombotiques et non hemorragiques a base d'heparine, procede pour leur preparation et applications therapeutiques Download PDFInfo
- Publication number
- WO1996006623A1 WO1996006623A1 PCT/IB1995/000405 IB9500405W WO9606623A1 WO 1996006623 A1 WO1996006623 A1 WO 1996006623A1 IB 9500405 W IB9500405 W IB 9500405W WO 9606623 A1 WO9606623 A1 WO 9606623A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- heparin
- protamine
- composition according
- activity
- fractions
- Prior art date
Links
- 229920000669 heparin Polymers 0.000 title claims abstract description 89
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 229960002897 heparin Drugs 0.000 title claims abstract description 80
- 239000000203 mixture Substances 0.000 title claims abstract description 47
- 230000002785 anti-thrombosis Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000002008 hemorrhagic effect Effects 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000003146 anticoagulant agent Substances 0.000 title description 7
- 230000001225 therapeutic effect Effects 0.000 title description 6
- 102000007327 Protamines Human genes 0.000 claims abstract description 56
- 108010007568 Protamines Proteins 0.000 claims abstract description 56
- 229940048914 protamine Drugs 0.000 claims abstract description 47
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 13
- 238000000338 in vitro Methods 0.000 claims abstract description 12
- 239000003814 drug Substances 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims description 19
- 239000003055 low molecular weight heparin Substances 0.000 claims description 15
- 229940127215 low-molecular weight heparin Drugs 0.000 claims description 15
- 239000002565 heparin fraction Substances 0.000 claims description 14
- 229950008679 protamine sulfate Drugs 0.000 claims description 9
- 239000008194 pharmaceutical composition Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 5
- 101000851058 Homo sapiens Neutrophil elastase Proteins 0.000 claims description 4
- 102100033174 Neutrophil elastase Human genes 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 4
- 230000001747 exhibiting effect Effects 0.000 claims description 3
- 230000005764 inhibitory process Effects 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 229940102223 injectable solution Drugs 0.000 claims 1
- 208000032843 Hemorrhage Diseases 0.000 abstract description 17
- 208000034158 bleeding Diseases 0.000 abstract description 6
- 230000000740 bleeding effect Effects 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 13
- 230000006698 induction Effects 0.000 description 12
- 208000007536 Thrombosis Diseases 0.000 description 11
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 206010003178 Arterial thrombosis Diseases 0.000 description 6
- 229940118179 lovenox Drugs 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 230000014508 negative regulation of coagulation Effects 0.000 description 5
- 241000700159 Rattus Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000144 pharmacologic effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- 208000005189 Embolism Diseases 0.000 description 3
- 108090000190 Thrombin Proteins 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- JMWHLOJMXZVRMC-UHFFFAOYSA-L disodium;4,7-dichloro-2',4',5',7'-tetraiodo-3-oxospiro[2-benzofuran-1,9'-xanthene]-3',6'-diolate Chemical compound [Na+].[Na+].O1C(=O)C(C(=CC=C2Cl)Cl)=C2C21C1=CC(I)=C([O-])C(I)=C1OC1=C(I)C([O-])=C(I)C=C21 JMWHLOJMXZVRMC-UHFFFAOYSA-L 0.000 description 3
- 229960000610 enoxaparin Drugs 0.000 description 3
- 230000023597 hemostasis Effects 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 238000007920 subcutaneous administration Methods 0.000 description 3
- 229960004072 thrombin Drugs 0.000 description 3
- CFWRDBDJAOHXSH-SECBINFHSA-N 2-azaniumylethyl [(2r)-2,3-diacetyloxypropyl] phosphate Chemical compound CC(=O)OC[C@@H](OC(C)=O)COP(O)(=O)OCCN CFWRDBDJAOHXSH-SECBINFHSA-N 0.000 description 2
- 206010047249 Venous thrombosis Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 210000002565 arteriole Anatomy 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000010102 embolization Effects 0.000 description 2
- 230000003511 endothelial effect Effects 0.000 description 2
- 230000002440 hepatic effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010001052 Acute respiratory distress syndrome Diseases 0.000 description 1
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 description 1
- 201000003883 Cystic fibrosis Diseases 0.000 description 1
- 108010028275 Leukocyte Elastase Proteins 0.000 description 1
- 102000016799 Leukocyte elastase Human genes 0.000 description 1
- 238000013494 PH determination Methods 0.000 description 1
- 108010067372 Pancreatic elastase Proteins 0.000 description 1
- 102000016387 Pancreatic elastase Human genes 0.000 description 1
- 208000013616 Respiratory Distress Syndrome Diseases 0.000 description 1
- 208000007107 Stomach Ulcer Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 201000000028 adult respiratory distress syndrome Diseases 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000003024 amidolytic effect Effects 0.000 description 1
- 230000002429 anti-coagulating effect Effects 0.000 description 1
- 210000000601 blood cell Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009109 curative therapy Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000002183 duodenal effect Effects 0.000 description 1
- 208000000718 duodenal ulcer Diseases 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000004108 freeze drying Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000007972 injectable composition Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 239000000902 placebo Substances 0.000 description 1
- 229940068196 placebo Drugs 0.000 description 1
- 230000031915 positive regulation of coagulation Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229940006123 rose bengal at Drugs 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 210000003462 vein Anatomy 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
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
- A61K31/726—Glycosaminoglycans, i.e. mucopolysaccharides
- A61K31/727—Heparin; Heparan
-
- 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
Definitions
- the present invention relates to heparin-based compositions as well as their preparation process and their therapeutic applications.
- compositions based on heparins neutralized by protamine exhibiting antithrombotic activity but substantially devoid of hemorrhagic and anticoagulant activities.
- Heparin has been known and used for many decades for the preparation of drugs with antithrombotic and / or anticoagulant activity intended in particular for the preventive and curative treatment of venous and arterial thromboses or also to prevent the coagulation in the extra circulation bodily.
- heparin which are in particular contraindicated in patients predisposed to haemorrhage, patients suffering from duodenal or gastric ulcers or patients having undergone recent intervention. in which antithrombotic treatment with heparin can cause hemorrhages.
- the treatment uses protamine sulphate which causes the heparin to neutralize in vivo.
- the object of the invention is more precisely to eliminate as much as possible the risk of hemorrhage from heparins while retaining their main properties, in particular the antithrombotic activity.
- the object of the present invention is to provide heparin compositions which have very advantageous pharmacological properties, in particular antithrombotic, substantially equivalent to those of the heparins used hitherto, without having the major drawback which lies in the significant bleeding risk.
- Another object of the present invention is to provide a process for the preparation of such compositions which is simple to carry out and inexpensive, making it possible moreover to develop their therapeutic applications.
- the invention also relates to the therapeutic applications of these compositions.
- heparin compositions according to the invention which exhibit antithrombotic activity and are practically devoid of hemorrhagic activity. These compositions are characterized in that they essentially consist of heparin fractions as obtained by neutralization in vi- heparin by protamine.
- heparin fraction neutralized by protamine means any fraction originating from a native or already fractionated heparin, or from a synthetic heparin, the haemorrhagic power of which has been neutralized by the action of protamine or any analog or equivalent thereof having a similar ability to reduce hemorrhagic power.
- compositions according to the invention advantageously consist of heparin fractions as obtained by the in vitro neutralization of an unfractionated heparin or of a low molecular weight heparin with protamine.
- the composition consists of heparin fractions of which 25% have a molecular weight of less than 2.5 kDa and 40% have a molecular weight of more than 20 kDa,
- the composition consists only of heparin fractions having a molecular mass of less than 2.5 kDa.
- the heparin fractions have a spectrum of molecular weights depending on the protamine neutralization modes that are used.
- compositions according to the invention are substantially free of protamine.
- the invention also provides a process for the preparation of the above-mentioned compositions, characterized in that it comprises a step of in vitro neutralization of hepatic rine by protamine.
- the inventors have discovered that, surprisingly, it is possible to neutralize in vitro, in particular with the aid of protamine, the hemorrhagic activity of heparin while preserving its antithrombotic properties.
- the method according to the invention consists in reacting, in solution, a heparin with protamine, in particular in the form of the protamine salt, according to variable heparin / protamine ratios.
- a heparin solution is mixed with a protamine salt solution, preferably at room temperature, the mixture obtained is centrifuged and the supernatant is recovered.
- heparin solution is meant a solution of native or already fractionated heparin, or synthetic heparin.
- the protamine salt advantageously consists of protamine sulfate.
- any analog or equivalent of protamine having a similar capacity, neutralizing heparin and therefore reducing hemorrhagic power, can be used.
- the supernatant can then be lyophilized.
- the heparin to be treated and the protamine can be used in different reports which essentially lead to the elimination of the risk of haemorrhage linked to heparins.
- the method comprises the step of neutralizing a heparin with protamine or an equivalent, preferably in heparin / protamine proportions of 2/1 to 1/2.
- the heparin / protamine ratio is of the order of 1/1.
- heparin compositions are obtained comprising fractions of which at least 25% have a molecular weight of less than 2.5 kDa and at least 40% have a molecular weight of more than 20 kDa.
- the heparin / protamine ratio is of the order of 1/2.
- Heparin compositions are then obtained essentially comprising fractions having a molecular mass of less than 2.5 kDa,
- heparin compositions free of protamine are obtained.
- heparin compositions of the invention have made it possible to demonstrate, in a surprising manner, that they are practically devoid of hemorrhagic activity and at the same time retain their antithrombotic property.
- compositions according to the invention were capable of inhibiting the hydrolytic activity of human leukocyte elastase, more effectively than unfractionated heparin.
- the elimination of the risk of haemorrhage, in accordance with the invention makes it possible to envisage administration by the parenteral route or by bronchopulmonary aerosol, in the treatment of certain bronchopulmonary conditions which may involve an excess of leukocytic elastase, such as acute respiratory distress syndromes, cystic fibrosis, chronic obstructive pulmonary disease.
- heparin compositions according to the invention which are stable and non-toxic, can be used for the preparation of medicaments useful in various therapeutic applications. These applications are those of heparin and its conventional derivatives, including cases where heparin is contraindicated because of the risk of bleeding that the patient presents. They can be used in particular for the preparation of medicaments for the treatment and prevention of venous or arterial thromboses or else to prevent activation of coagulation in the extracorporeal circulation.
- the invention therefore also relates to pharmaceutical compositions comprising an amount therapeutically effective heparin composition according to the invention as described above, in combination with a pharmaceutically acceptable vehicle.
- They may, for example, be antithrombotic pharmaceutical compositions or else for the inhibition of the hydrolytic activity of human leukocyte elastase.
- heparin fractions of these compositions can be in the form of a pharmaceutically acceptable salt according to conventional methods.
- compositions according to the invention are advantageously injectable formulations intended in particular for administration by the parenteral route.
- formulations suitable for administration by bronchopulmonary route are advantageously provided.
- FIG. 1 is a comparative graph of the hemorrhagic activity of unfractionated heparin, low molecular weight heparin and non hemorrhagic heparin compositions according to the invention (S1, S2, S3);
- FIG. 2 is a comparative graph of the antithrombotic activity of unfractionated heparin, low molecular weight heparin and heparin compositions according to the invention (S1, S2, S3).
- the mixture thus obtained is centrifuged for 10 minutes and the supernatant is recovered which is lyophilized.
- Example 2 The procedure is as described in Example 1 from 9 ml of a standard heparin solution (i.e. 45,000 IU, 300 mg) and 60 ml of protamine sulfate (i.e. 60,000 UAH). The heparin / protamine ratio is then 1/2, that is to say that 1 mg of heparin is neutralized with 2 mg of protamine sulfate.
- a standard heparin solution i.e. 45,000 IU, 300 mg
- protamine sulfate i.e. 60,000 UAH
- a solution diluted to 1/20 has two absorption peaks at the following wavelengths:
- each bottle contains 0.7 ml of supernatant solution. 12 identical assays were carried out to verify the reproducibility: the results are given in Table III below:
- the assay of the proteins in the supernatants S1 and S2, respectively prepared according to Examples 1 and 2, is carried out according to the Pierce method (Pierce laboratory reagent kit).
- T0 ligation of the vena cava
- the supernatant S1 has no effect on blood cells.
- the supernatant S2 obtained by neutralization according to a heparin / protamine ratio of 1/2, does not exert any hemorrhagic activity but has a reduced antithrombotic activity.
- FIG. 2 shows that the heparin fractions obtained according to the invention exhibit an interesting antithrombotic activity.
- SI fraction heparin / protamine ratio of 1/1
- this activity is comparable to that of heparins which are not neutralized in accordance with the invention.
- results obtained show that, as a preventive measure, SI exerts an antithrombotic activity comparable to that of heparin and LOVENOX, 24 hours after the induction of thrombosis.
- the excitation time is fixed at 2 minutes and the observation time at 10 minutes.
- Duration embolization duration between the first and the embolus embolus ernier of detaching the clot.
- Number of emboli number of emboli coming off the clot.
- the supernatant S1 (example 1) exerts a significant antithrombotic activity compared to the placebo group, which persists after 90 minutes (TO + 90 min). This activity is more important than that of heparin injected at the same dose, after 30 and 60 minutes (TO + 30 and TO + 60 min).
- the observation time is fixed at 10 minutes.
- SI exerts an antithrombotic activity comparable to that of non-neutralized heparin injected at the same dose and reduces the number of embolisms as well as the duration of embolization in a statistically significant manner, b. Study 2
- T0 + 6h induction of the third arterial thrombosis.
- the observation time is fixed at 10 minutes.
- SI exerts an antithrombotic activity comparable to that of heparin which is not neutralized by protamine.
- the studies described above show that the antithrombotic activity is observed in the three experimental thrombosis models, namely the venous model induced by stasis, the arterial thrombosis model induced by free radicals and the arterial thrombosis model induced by endothelial laser injury.
- the fraction of heparin obtained from a low molecular weight heparin has a greater antithrombotic activity than that of the same low molecular weight heparin not treated in in vitro by protamine and also greater than that of the fractions obtained from unfractionated heparins and not treated in vitro with protamine, while no longer presenting any risk of haemorrhage.
- the method according to the invention allows, in a simple and inexpensive manner, practically to suppress the hemorrhagic activity of heparins while retaining their antithrombotic activity.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Molecular Biology (AREA)
- Epidemiology (AREA)
- Dermatology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Engineering & Computer Science (AREA)
- Diabetes (AREA)
- Hematology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95918118A EP0779814A1 (fr) | 1994-08-29 | 1995-05-29 | Compositions antithrombotiques et non hemorragiques a base d'heparine, procede pour leur preparation et applications therapeutiques |
AU24171/95A AU696954B2 (en) | 1994-08-29 | 1995-05-29 | Antithrombotic and non-hemorrhagic heparin-based compositions, process for their preparation and therapeutic applications |
US08/793,314 US5922358A (en) | 1994-08-29 | 1995-05-29 | Antithrombotic and non-hemorrhagic heparin-based compositions, process for their preparation and therapeutic applications |
JP8508580A JPH09510736A (ja) | 1994-08-29 | 1995-05-29 | ヘパリンをベースとした抗血栓性で非出血性の組成物と、その調製方法と、治療への利用 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR94/10380 | 1994-08-29 | ||
FR9410380A FR2723847A1 (fr) | 1994-08-29 | 1994-08-29 | Compositions antithrombotiques et non hemorragiques a base d'heparine, procede pour leur preparation et applications therapeutiques. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996006623A1 true WO1996006623A1 (fr) | 1996-03-07 |
Family
ID=9466541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1995/000405 WO1996006623A1 (fr) | 1994-08-29 | 1995-05-29 | Compositions antithrombotiques et non hemorragiques a base d'heparine, procede pour leur preparation et applications therapeutiques |
Country Status (9)
Country | Link |
---|---|
US (1) | US5922358A (fr) |
EP (1) | EP0779814A1 (fr) |
JP (1) | JPH09510736A (fr) |
CN (1) | CN1159162A (fr) |
AU (1) | AU696954B2 (fr) |
CA (1) | CA2198722A1 (fr) |
FR (1) | FR2723847A1 (fr) |
RU (1) | RU2151602C1 (fr) |
WO (1) | WO1996006623A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1551852A2 (fr) * | 2002-04-25 | 2005-07-13 | Momenta Pharmaceuticals, Inc. | Procede et produits pour administration par voie muqueuse |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2235223A1 (fr) | 1995-10-30 | 1997-05-09 | Massachusetts Institute Of Technology | Lyases de polysaccharides designees rationnellement derivees de l'heparinase i |
IT1294797B1 (it) * | 1997-07-28 | 1999-04-15 | Fidia Advanced Biopolymers Srl | Uso dei derivati dell'acido ialuronico nella preparazione di biomateriali aventi attivita' emostatica fisica e tamponante |
US7056504B1 (en) | 1998-08-27 | 2006-06-06 | Massachusetts Institute Of Technology | Rationally designed heparinases derived from heparinase I and II |
CA2341412A1 (fr) * | 1998-08-27 | 2000-03-09 | Massachusetts Institute Of Technology | Heparinases a conception rationnelle derivees de l'heparinase i et ii |
US6597996B1 (en) * | 1999-04-23 | 2003-07-22 | Massachusetts Institute Of Technology | Method for indentifying or characterizing properties of polymeric units |
ES2527853T3 (es) * | 2000-03-08 | 2015-01-30 | Massachusetts Institute Of Technology | Heparinasa III y sus usos |
US7083937B2 (en) * | 2000-09-12 | 2006-08-01 | Massachusetts Institute Of Technology | Methods and products related to the analysis of polysaccarides |
EP1328260A2 (fr) * | 2000-10-18 | 2003-07-23 | Massachusetts Institute Of Technology | Procedes et produits associes a l'administration pulmonaires de polysaccharides |
KR100378109B1 (ko) * | 2000-10-24 | 2003-03-29 | 주식회사 메디프렉스 | 소수성 다중복합 헤파린 결합체, 그의 제조방법 및 용도 |
WO2003078960A2 (fr) * | 2002-03-11 | 2003-09-25 | Momenta Pharmaceuticals, Inc. | Analyse de polysaccharides sulfates |
CN101721697A (zh) * | 2002-10-01 | 2010-06-09 | 诺华疫苗和诊断公司 | 抗癌及抗感染性疾病组合物及其使用方法 |
WO2007140231A2 (fr) | 2006-05-25 | 2007-12-06 | Momenta Pharmaceutical, Inc. | Composition d'héparine de bas poids moléculaire et utilisations de celle-ci |
US9139876B1 (en) | 2007-05-03 | 2015-09-22 | Momenta Pharmacueticals, Inc. | Method of analyzing a preparation of a low molecular weight heparin |
WO2011090948A1 (fr) * | 2010-01-19 | 2011-07-28 | Momenta Pharmaceuticals, Inc. | Évaluation de préparations d'héparine |
US9068957B2 (en) | 2011-02-21 | 2015-06-30 | Momenta Pharmaceuticals, Inc. | Evaluating heparin preparations |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE659943A (fr) * | 1964-03-17 | 1965-06-16 | ||
US4175182A (en) * | 1978-07-03 | 1979-11-20 | Research Corporation | Separation of high-activity heparin by affinity chromatography on supported protamine |
JPS5543123A (en) * | 1978-09-22 | 1980-03-26 | Amano Pharmaceut Co Ltd | Preparation of highly active heparin |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE15142T1 (de) * | 1981-05-21 | 1985-09-15 | Akzo Nv | Antithrombotikum auf basis von polysacchariden, verfahren zur dessen herstellung und medizinale zusammensetzungen. |
US4687765A (en) * | 1983-07-25 | 1987-08-18 | Choay S.A. | Method and composition for thrombolytic treatment |
US4800016A (en) * | 1986-11-24 | 1989-01-24 | The University Of Michigan | Extracorporeal blood de-heparinization system |
-
1994
- 1994-08-29 FR FR9410380A patent/FR2723847A1/fr active Pending
-
1995
- 1995-05-29 EP EP95918118A patent/EP0779814A1/fr not_active Withdrawn
- 1995-05-29 RU RU97104917/14A patent/RU2151602C1/ru active
- 1995-05-29 JP JP8508580A patent/JPH09510736A/ja not_active Withdrawn
- 1995-05-29 CA CA002198722A patent/CA2198722A1/fr not_active Abandoned
- 1995-05-29 CN CN95195343A patent/CN1159162A/zh active Pending
- 1995-05-29 WO PCT/IB1995/000405 patent/WO1996006623A1/fr not_active Application Discontinuation
- 1995-05-29 AU AU24171/95A patent/AU696954B2/en not_active Ceased
- 1995-05-29 US US08/793,314 patent/US5922358A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE659943A (fr) * | 1964-03-17 | 1965-06-16 | ||
US4175182A (en) * | 1978-07-03 | 1979-11-20 | Research Corporation | Separation of high-activity heparin by affinity chromatography on supported protamine |
JPS5543123A (en) * | 1978-09-22 | 1980-03-26 | Amano Pharmaceut Co Ltd | Preparation of highly active heparin |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 4, no. 77 (C - 013) 4 June 1980 (1980-06-04) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1551852A2 (fr) * | 2002-04-25 | 2005-07-13 | Momenta Pharmaceuticals, Inc. | Procede et produits pour administration par voie muqueuse |
EP1551852A4 (fr) * | 2002-04-25 | 2007-03-21 | Momenta Pharmaceuticals Inc | Procede et produits pour administration par voie muqueuse |
Also Published As
Publication number | Publication date |
---|---|
CN1159162A (zh) | 1997-09-10 |
RU2151602C1 (ru) | 2000-06-27 |
AU2417195A (en) | 1996-03-22 |
AU696954B2 (en) | 1998-09-24 |
CA2198722A1 (fr) | 1996-03-07 |
JPH09510736A (ja) | 1997-10-28 |
US5922358A (en) | 1999-07-13 |
EP0779814A1 (fr) | 1997-06-25 |
FR2723847A1 (fr) | 1996-03-01 |
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