EP3897692A1 - Procédé de filtration du fibrinogène - Google Patents
Procédé de filtration du fibrinogèneInfo
- Publication number
- EP3897692A1 EP3897692A1 EP19848895.9A EP19848895A EP3897692A1 EP 3897692 A1 EP3897692 A1 EP 3897692A1 EP 19848895 A EP19848895 A EP 19848895A EP 3897692 A1 EP3897692 A1 EP 3897692A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibrinogen
- filter
- filtration
- carried out
- elution buffer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 108010049003 Fibrinogen Proteins 0.000 title claims abstract description 204
- 102000008946 Fibrinogen Human genes 0.000 title claims abstract description 204
- 229940012952 fibrinogen Drugs 0.000 title claims abstract description 204
- 238000000034 method Methods 0.000 title claims abstract description 128
- 238000001914 filtration Methods 0.000 title claims abstract description 123
- 239000000203 mixture Substances 0.000 claims abstract description 104
- 239000004475 Arginine Substances 0.000 claims abstract description 72
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000011148 porous material Substances 0.000 claims abstract description 59
- 239000012149 elution buffer Substances 0.000 claims abstract description 49
- 238000010828 elution Methods 0.000 claims abstract description 14
- 239000000243 solution Substances 0.000 claims description 68
- 238000004587 chromatography analysis Methods 0.000 claims description 49
- 230000008569 process Effects 0.000 claims description 38
- 238000001042 affinity chromatography Methods 0.000 claims description 15
- 238000000746 purification Methods 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 10
- 238000010790 dilution Methods 0.000 claims description 8
- 239000012895 dilution Substances 0.000 claims description 8
- 238000011210 chromatographic step Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 230000009261 transgenic effect Effects 0.000 claims description 7
- 238000004113 cell culture Methods 0.000 claims description 6
- 239000012228 culture supernatant Substances 0.000 claims description 6
- 239000003446 ligand Substances 0.000 claims description 6
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 claims description 5
- 108091023037 Aptamer Proteins 0.000 claims description 4
- 238000005342 ion exchange Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 150000001450 anions Chemical class 0.000 claims description 2
- 238000011026 diafiltration Methods 0.000 claims description 2
- 229920005615 natural polymer Polymers 0.000 claims description 2
- 229920001059 synthetic polymer Polymers 0.000 claims description 2
- 238000000108 ultra-filtration Methods 0.000 claims description 2
- 235000020244 animal milk Nutrition 0.000 claims 1
- 238000010257 thawing Methods 0.000 abstract description 9
- 238000007710 freezing Methods 0.000 abstract description 8
- 230000008014 freezing Effects 0.000 abstract description 8
- 238000011097 chromatography purification Methods 0.000 abstract description 6
- 239000012528 membrane Substances 0.000 description 41
- 210000002381 plasma Anatomy 0.000 description 39
- 238000001728 nano-filtration Methods 0.000 description 31
- 239000000872 buffer Substances 0.000 description 22
- 241001596784 Pegasus Species 0.000 description 20
- 241000700605 Viruses Species 0.000 description 18
- 230000003612 virological effect Effects 0.000 description 15
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 14
- 230000014759 maintenance of location Effects 0.000 description 12
- 241000701931 Canine parvovirus Species 0.000 description 11
- 239000004695 Polyether sulfone Substances 0.000 description 11
- 230000002779 inactivation Effects 0.000 description 11
- 229920006393 polyether sulfone Polymers 0.000 description 11
- 102000004169 proteins and genes Human genes 0.000 description 11
- 108090000623 proteins and genes Proteins 0.000 description 11
- 238000011282 treatment Methods 0.000 description 11
- 239000013621 viresolve pro solution Substances 0.000 description 10
- 239000006228 supernatant Substances 0.000 description 9
- 239000002033 PVDF binder Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 230000000717 retained effect Effects 0.000 description 8
- 239000000356 contaminant Substances 0.000 description 7
- 230000008030 elimination Effects 0.000 description 7
- 238000003379 elimination reaction Methods 0.000 description 7
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 6
- 241001465754 Metazoa Species 0.000 description 6
- 241000125945 Protoparvovirus Species 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000004255 ion exchange chromatography Methods 0.000 description 6
- 239000008267 milk Substances 0.000 description 6
- 210000004080 milk Anatomy 0.000 description 6
- 235000013336 milk Nutrition 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 6
- 229920006310 Asahi-Kasei Polymers 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 5
- 239000001509 sodium citrate Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229920012266 Poly(ether sulfone) PES Polymers 0.000 description 4
- 102000029797 Prion Human genes 0.000 description 4
- 108091000054 Prion Proteins 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000003599 detergent Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 description 4
- 229940038773 trisodium citrate Drugs 0.000 description 4
- 102100037362 Fibronectin Human genes 0.000 description 3
- 108010067306 Fibronectins Proteins 0.000 description 3
- 239000004471 Glycine Substances 0.000 description 3
- AGPKZVBTJJNPAG-WHFBIAKZSA-N L-isoleucine Chemical compound CC[C@H](C)[C@H](N)C(O)=O AGPKZVBTJJNPAG-WHFBIAKZSA-N 0.000 description 3
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 description 3
- 239000004472 Lysine Substances 0.000 description 3
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 3
- 229940024606 amino acid Drugs 0.000 description 3
- 150000001413 amino acids Chemical class 0.000 description 3
- 238000005194 fractionation Methods 0.000 description 3
- 229960000310 isoleucine Drugs 0.000 description 3
- AGPKZVBTJJNPAG-UHFFFAOYSA-N isoleucine Natural products CCC(C)C(N)C(O)=O AGPKZVBTJJNPAG-UHFFFAOYSA-N 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 108010088751 Albumins Proteins 0.000 description 2
- 102000009027 Albumins Human genes 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 108010073385 Fibrin Proteins 0.000 description 2
- 102000009123 Fibrin Human genes 0.000 description 2
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 241000702617 Human parvovirus B19 Species 0.000 description 2
- 108010094028 Prothrombin Proteins 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 229940050528 albumin Drugs 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 238000005349 anion exchange Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 208000009190 disseminated intravascular coagulation Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229950003499 fibrin Drugs 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 239000012678 infectious agent Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012434 mixed-mode chromatography Methods 0.000 description 2
- 238000009928 pasteurization Methods 0.000 description 2
- 230000007170 pathology Effects 0.000 description 2
- 239000000546 pharmaceutical excipient Substances 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 108090000765 processed proteins & peptides Proteins 0.000 description 2
- 102000004196 processed proteins & peptides Human genes 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- 241001430294 unidentified retrovirus Species 0.000 description 2
- KWTQSFXGGICVPE-WCCKRBBISA-N Arginine hydrochloride Chemical compound Cl.OC(=O)[C@@H](N)CCCN=C(N)N KWTQSFXGGICVPE-WCCKRBBISA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 102100022641 Coagulation factor IX Human genes 0.000 description 1
- 108010035369 Cohn fraction I Proteins 0.000 description 1
- 208000026617 Congenital fibrinogen deficiency Diseases 0.000 description 1
- 108010076282 Factor IX Proteins 0.000 description 1
- 108010054218 Factor VIII Proteins 0.000 description 1
- 102000001690 Factor VIII Human genes 0.000 description 1
- 108010014173 Factor X Proteins 0.000 description 1
- 208000031220 Hemophilia Diseases 0.000 description 1
- 208000009292 Hemophilia A Diseases 0.000 description 1
- 241000709721 Hepatovirus A Species 0.000 description 1
- 101000945318 Homo sapiens Calponin-1 Proteins 0.000 description 1
- 101000652736 Homo sapiens Transgelin Proteins 0.000 description 1
- 108060003951 Immunoglobulin Proteins 0.000 description 1
- 102000008394 Immunoglobulin Fragments Human genes 0.000 description 1
- 108010021625 Immunoglobulin Fragments Proteins 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 description 1
- 241000701076 Macacine alphaherpesvirus 1 Species 0.000 description 1
- 108091034117 Oligonucleotide Proteins 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 102000035195 Peptidases Human genes 0.000 description 1
- 108010043958 Peptoids Proteins 0.000 description 1
- 102100038124 Plasminogen Human genes 0.000 description 1
- 108010051456 Plasminogen Proteins 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 101800004937 Protein C Proteins 0.000 description 1
- 102000017975 Protein C Human genes 0.000 description 1
- 229940096437 Protein S Drugs 0.000 description 1
- 108010066124 Protein S Proteins 0.000 description 1
- 102000029301 Protein S Human genes 0.000 description 1
- 102100027378 Prothrombin Human genes 0.000 description 1
- 101800001700 Saposin-D Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 108090000190 Thrombin Proteins 0.000 description 1
- 102100031013 Transgelin Human genes 0.000 description 1
- 229930003448 Vitamin K Natural products 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000000890 antigenic effect Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 229960003121 arginine Drugs 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- AGVAZMGAQJOSFJ-WZHZPDAFSA-M cobalt(2+);[(2r,3s,4r,5s)-5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2r)-1-[3-[(1r,2r,3r,4z,7s,9z,12s,13s,14z,17s,18s,19r)-2,13,18-tris(2-amino-2-oxoethyl)-7,12,17-tris(3-amino-3-oxopropyl)-3,5,8,8,13,15,18,19-octamethyl-2 Chemical compound [Co+2].N#[C-].[N-]([C@@H]1[C@H](CC(N)=O)[C@@]2(C)CCC(=O)NC[C@@H](C)OP(O)(=O)O[C@H]3[C@H]([C@H](O[C@@H]3CO)N3C4=CC(C)=C(C)C=C4N=C3)O)\C2=C(C)/C([C@H](C\2(C)C)CCC(N)=O)=N/C/2=C\C([C@H]([C@@]/2(CC(N)=O)C)CCC(N)=O)=N\C\2=C(C)/C2=N[C@]1(C)[C@@](C)(CC(N)=O)[C@@H]2CCC(N)=O AGVAZMGAQJOSFJ-WZHZPDAFSA-M 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- -1 factor Vil Proteins 0.000 description 1
- 229960004222 factor ix Drugs 0.000 description 1
- 229960000301 factor viii Drugs 0.000 description 1
- 229940012426 factor x Drugs 0.000 description 1
- 239000000535 fibrinogen concentrate Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229960002449 glycine Drugs 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 208000005252 hepatitis A Diseases 0.000 description 1
- 102000018358 immunoglobulin Human genes 0.000 description 1
- 229940072221 immunoglobulins Drugs 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012669 liquid formulation Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229960003646 lysine Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 244000309711 non-enveloped viruses Species 0.000 description 1
- 229940066429 octoxynol Drugs 0.000 description 1
- 229920002113 octoxynol Polymers 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- SHUZOJHMOBOZST-UHFFFAOYSA-N phylloquinone Natural products CC(C)CCCCC(C)CCC(C)CCCC(=CCC1=C(C)C(=O)c2ccccc2C1=O)C SHUZOJHMOBOZST-UHFFFAOYSA-N 0.000 description 1
- 108010025221 plasma protein Z Proteins 0.000 description 1
- 229940012957 plasmin Drugs 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229950008882 polysorbate Drugs 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000003805 procoagulant Substances 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229960000856 protein c Drugs 0.000 description 1
- 229940039716 prothrombin Drugs 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- JJAHTWIKCUJRDK-UHFFFAOYSA-N succinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate Chemical compound C1CC(CN2C(C=CC2=O)=O)CCC1C(=O)ON1C(=O)CCC1=O JJAHTWIKCUJRDK-UHFFFAOYSA-N 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 229960004072 thrombin Drugs 0.000 description 1
- 230000017423 tissue regeneration Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 235000019168 vitamin K Nutrition 0.000 description 1
- 239000011712 vitamin K Substances 0.000 description 1
- 150000003721 vitamin K derivatives Chemical class 0.000 description 1
- 229940046010 vitamin k Drugs 0.000 description 1
- 108010047303 von Willebrand Factor Proteins 0.000 description 1
- 102100036537 von Willebrand factor Human genes 0.000 description 1
- 229960001134 von willebrand factor Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/745—Blood coagulation or fibrinolysis factors
- C07K14/75—Fibrinogen
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
- A61L2/0011—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using physical methods
- A61L2/0017—Filtration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
- A61L2/0011—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using physical methods
- A61L2/0023—Heat
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
- A61L2/0011—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using physical methods
- A61L2/0029—Radiation
- A61L2/0035—Gamma radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/0005—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts
- A61L2/0011—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor for pharmaceuticals, biologicals or living parts using physical methods
- A61L2/0029—Radiation
- A61L2/0047—Ultraviolet radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction
- B01D15/361—Ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/38—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups B01D15/265 - B01D15/36
- B01D15/3804—Affinity chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/38—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups B01D15/265 - B01D15/36
- B01D15/3847—Multimodal interactions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/027—Nanofiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/04—Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/58—Multistep processes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/16—Extraction; Separation; Purification by chromatography
- C07K1/18—Ion-exchange chromatography
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/34—Extraction; Separation; Purification by filtration, ultrafiltration or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2311/00—Details relating to membrane separation process operations and control
- B01D2311/26—Further operations combined with membrane separation processes
- B01D2311/2697—Chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2315/00—Details relating to the membrane module operation
- B01D2315/16—Diafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
Definitions
- the present invention relates to a fibrinogen filtration process, as well as the preparations obtained.
- Fibrinogen is an essential protein for blood coagulation, because its polymerization into insoluble fibrin formed at the end of the cascade of reactions which govern coagulation, results in the formation of a clot closing the vascular breach, responsible for bleeding. The placement of the clot is thus essential to ensure the cessation of bleeding.
- the fibrin formed at the level of the wound constitutes a fibrillar network which ensures tissue repair, therefore scarring.
- Congenital fibrinogen deficiencies can lead to serious pathologies. To treat these deficiencies, it is necessary to have fibrinogen concentrates which can be administered to patients in treatment. Other pathologies can also be treated by fibrinogen contributions, in particular in the event of massive blood loss, in the event of surgery or trauma for example, or following a decompensated consumption coagulopathy, for example the CIVD ( disseminated intravascular coagulation).
- CIVD disseminated intravascular coagulation
- compositions comprising fibrinogen in particular for therapeutic purposes, requires purification techniques leading to a product which is not only sufficiently purified of contaminants of diverse nature, such as the accompanying or co-purified proteins. , antibodies or proteases, but moreover virally secure and in terms of the ATNC covering the prion.
- certain conventional viral inactivation treatments consist of a heat treatment, for example pasteurization at 60 ° C. for 20 hours in the presence of protective stabilizers or dry heating of the lyophilized product, and / or a chemical treatment, such as as solvent-detergent, intended to make the fibrinogen compositions compatible with a therapeutic use.
- a heat treatment for example pasteurization at 60 ° C. for 20 hours in the presence of protective stabilizers or dry heating of the lyophilized product
- a chemical treatment such as as solvent-detergent
- the other biological security methods use viral elimination techniques, in particular using filtering.
- these filtration techniques require filters with a small pore size ( ⁇ 35 nanometers) which are hardly compatible with fibrinogen.
- Application EP1457497 describes a nanofiltration step requiring a preliminary freezing and thawing step followed by filtration which must be applied in order to remove aggregates, polymers or undesirable contaminants such as fibronectin, such a process also requires a prior dilution of the solution to less than 2 g / L to limit early clogging of the filters, which represents significant obstacles to the industrialization of such processes.
- low porosity filters such as the Planova 20N filter, which is conventionally used in the industry for biological safety, do not make it possible to achieve a charge on the filter sufficient to ensure an acceptable yield and industrial cost price.
- the methods using filters under such conditions therefore do not allow easy industrial implementation or use at high capacity, and represent a prohibitive cost in the implementation of a purification process on an industrial scale using batches of departure of several hundred or thousands of liters.
- such methods do not allow more than 0.2 kg of fibrinogen to be treated per m 2 of nanofilter membrane without including a preliminary stage of freezing / thawing and filtration of the product to be nanofiltrated.
- the development of a nanofiltration step of fibrinogen under conditions allowing its industrial implementation (sufficient flow rate, little clogging, acceptable cost price) is therefore known to be a difficulty.
- fibrinogen compositions must contain arginine to ensure their stability.
- the processes for obtaining fibrinogen compositions thus use arginine at different stages of the process, including during the elution of chromatography.
- application US2015 / 0366947 (Example 7) teaches that the nanofiltration of fibrinogen compositions obtained by elution from chromatography in a buffer comprising arginine would not be facilitated compared to the nanofiltration of fibrinogen compositions obtained by elution from chromatography in buffer not comprising arginine.
- the Applicant has therefore sought to develop a process for removing viruses and other undesirable contaminants (such as polymers, aggregates or prions) from a composition comprising fibrinogen, by filtration, which allows the obtaining a highly secure fibrinogen composition, said process being easy to implement on an industrial scale, and having good yield and an acceptable industrial cost price.
- the invention therefore relates to a method of filtering a fibrinogen composition, comprising the following steps: a) purification by chromatography of the fibrinogen composition using an elution buffer comprising arginine;
- step b) optionally, at least one step of filtering the fibrinogen composition obtained by elution from chromatography in step a), on a filter having a pore size of between 0.08 ⁇ m and 0.22 ⁇ m,
- step a) filtration of the fibrinogen composition obtained by elution from chromatography in step a), or optionally obtained in b), on a symmetrical filter having a pore size of between 15 nm and 25 nm, preferably between 18 nm and 22 nm, and
- said filtration process being carried out without adding arginine after step a), at a capacity of at least 0.2 kg of fibrinogen / m 2 and said fibrinogen composition not being previously frozen and / or thawed.
- the method according to the invention does not require the addition of an adjustment step with arginine of the composition obtained after the chromatography step.
- Increasing concentrations of arginine in the elution buffer have been shown to increase the filtration capacity and do not clog the filter.
- a subsequent adjustment step with arginine is therefore not necessary, thus simplifying the industrial implementation of the process.
- the method according to the invention therefore advantageously allows filterability, on a symmetrical filter with a pore size of about 20 nm, of a composition comprising fibrinogen without prior freezing / thawing step, or prior dilution from a fibrinogen solution pre-purified by chromatography and eluted by buffer comprising arginine, and without addition of arginine after the purification step by chromatography.
- FIG. 1 shows the capacity in g of fibrinogen / m 2 of membrane as a function of the flow rate (L / H / m 2 ) of the process according to the invention (symmetrical filter) compared to a previous process (asymmetric filter)
- high capacity means a fibrinogen load per membrane surface, expressed in kg of fibrinogen per m 2 of membrane, greater than or equal to 0.2, preferably greater than or equal to 0 , 25, preferably greater than or equal to 0.3, preferably greater than or equal to 0.35, preferably greater than or equal to 0.4, preferably greater than or equal to 0.45, preferably greater than or equal to 0 , 5, preferably greater than or equal to 1, preferably greater than or equal to 2, preferably greater than or equal to 3, preferably greater than or equal to 5 kg / m 2 .
- the high capacity corresponds to a fibrinogen load per membrane surface of between 0.2 and 5 kg / m 2 , even more advantageously between 0.2 and 2.5 kg / m 2 .
- the Applicant has found that it was possible to obtain, on an industrial scale, fibrinogen compositions, highly secure, free of viruses, and in particular of small viruses, in particular non-enveloped, such than B19, and other undesirable contaminants (such as polymers, aggregates or prions), by the implementation of a flexible and simple filtration process which allows securing with a nanofiltration step of fibrinogen retaining its molecular integrity at an acceptable cost of production.
- a simple process, fast and at an acceptable industrial cost price is easily implemented on an industrial scale, which leads to increased optimization of the biological security of compositions comprising fibrinogen.
- a filtration process allows a high protein load with a high yield after filtration.
- the method according to the invention thus uses a fibrinogen composition, in particular from different sources.
- the fibrinogen composition can thus be obtained from blood plasma, preferably from plasma fractions, cell culture supernatant or milk from transgenic animals.
- the composition comprising fibrinogen (or fibrinogen composition) subjected to the process of the invention is blood plasma or a plasma fraction, preferably a plasma fraction obtained from pre-purified blood plasma .
- plasma fraction obtained from prepurified blood plasma means any part or sub-part of human blood plasma, having undergone one or more purification steps. Said plasma fractions thus include the supernatant of cryoprecipitate plasma, the cryoprecipitate of plasma (resuspended), fraction I obtained by ethanolic fractionation (according to the method of Cohn or of Kistler & Nitschmann), the eluates of chromatography and the non-adsorbed fractions of the chromatography columns, including multicolumn chromatographies, and the filtrates.
- the fibrinogen composition subjected to the process of the invention undergoes an additional chromatography step.
- the fibrinogen composition subjected to the process according to the invention is a chromatography eluate or a non-adsorbed fraction of a chromatography column, including multicolumn chromatography.
- the fibrinogen composition subjected to the method of the invention is a plasma fraction obtained from cryosupernatant or resuspended cryoprecipitate.
- the cryoprecipitate plasma supernatant corresponds to the liquid phase obtained after thawing of frozen plasma (cryoprecipitation).
- the cryosupernatant can be obtained by freezing blood plasma at a temperature between - 10 ° C and -40 ° C, then gentle thawing at a temperature between 0 ° C and + 6 ° C, preferably between 0 ° C and +1 ° C, followed by centrifugation of the thawed plasma to separate the cryoprecipitate and the cryosupernatant.
- Cryoprecipitate is a concentrate of fibrinogen, fibronectin, von Willebrand factor and factor VIII, while the cryosupernatant contains complement factors, dependent vitamin K factors such as protein C, protein S, protein Z, factor II, factor Vil, factor IX and factor X, fibrinogen, immunoglobulins and albumin.
- fibrinogen composition not being previously frozen and / or thawed
- fibrinogen composition which is subjected to step b) if it applies, or by default subjected directly to the 'step c), is not frozen and / or thawed before this step b) or c).
- the plasma fraction subjected to the method of the invention can be obtained according to the method described by the Applicant in application EP1739093.
- the plasma fraction used is preferably obtained as follows:
- human plasma cryosupernatant is used.
- This plasma cryosupernatant is subjected to ethanolic precipitation by Cohn's method, according to conditions known to those skilled in the art, in particular such that the concentration of ethanol in the plasma considered is 8 to 10% (v / v).
- the supernatant and the precipitate thus obtained are then centrifuged.
- the precipitate constitutes fraction I of Cohn consisting mainly of fibrinogen (purity about 70%).
- This prepurified Cohn fraction I is resuspended and washed by dispersion.
- the purified precipitate paste (fraction I of purified Cohn) is recovered and then dissolved.
- the solution thus obtained is then subjected to an elimination of the procoagulant factors by treatment with alumina gel at a pH of 6.9-7.1.
- this prepurified solution is subjected to a first viral inactivation treatment by solvent-detergent in the presence of Tween®-TnBP.
- the prepurified solution thus obtained is injected onto a chromatographic column filled with an DEAE Macroprep anion exchange gel (Bio-Rad, France), previously balanced in a buffer consisting of sodium chloride and trisodium citrate, adjusted to a pH of 8 , 0.
- DEAE Macroprep anion exchange gel Bio-Rad, France
- the fibrinogen is eluted by an appropriate elution buffer, for example containing 1 M sodium chloride and a mixture consisting of trisodium citrate, lysine, glycine, arginine and isoleucine, adjusted to a pH 7.5.
- the eluate thus recovered constitutes the plasma fraction used for nanofiltration.
- the chromatography step is carried out by affinity, mixed-mode or ion exchange chromatography.
- the chromatographic purification is an ion exchange chromatography.
- it is carried out on an ion exchange matrix based on natural or synthetic polymer, resin or gel, onto which anion exchange groups of weak base type, preferably DEAE, are grafted.
- the chromatographic purification comprises a first step of loading a composition of fibrinogen, in particular of the solubilized plasma fraction, on an anion exchanger of weak base type, said exchanger being beforehand balanced by a buffer of predetermined ionic strength of basic pH. Said buffer is called a balancing buffer.
- the elution buffer comprises arginine in arginine is preferably at least 200 mM, at least 300 mM, at least 400 mM, at least 500 mM, at least 600 mM , at least 700 mM, at least 800 mM, at least 900 mM, at least 1 M.
- the arginine concentration of the elution buffer is preferably between 200 and 800 mM, between 200 and 700 mM, between 200 and 600 mM, between 200 and 500 mM, between 200 and 400 mM, between 200 and 300 mM.
- the arginine concentration of the elution buffer is preferably between 300 and 800 mM, between 400 and 800 mM, between 500 and 800 mM, between 600 and 800 mM, between 700 and 800 mM.
- the arginine concentration of the elution buffer is preferably between 300 and 800 mM, between 400 and 700 mM, between 400 and 600 mM.
- the elution buffer can also contain other suitable excipients, such as salts and / or amino acids, for example trisodium citrate, Tris, lysine, glycine, and / or isoleucine.
- suitable excipients such as salts and / or amino acids, for example trisodium citrate, Tris, lysine, glycine, and / or isoleucine.
- the protein concentration in the eluate is of the order of 2 to 5 g / l.
- the chromatographic purification is an affinity chromatography.
- the chromatographic purification comprises a first step of loading a fibrinogen composition, obtained from the cryosupernatant or from the resuspended cryoprecipitate, onto an affinity resin, said resin being beforehand balanced by a buffer of predetermined ionic strength of pH adapted. Said buffer is called a balancing buffer.
- the solubilized plasma fraction is loaded onto any affinity matrix, resin or gel, onto which are grafted chemical or synthetic ligands such as antibodies, antibody fragments, antibody derivatives or chemical ligands such as peptides, mimetic peptides, peptoids, nanofitins or even oligonucleotide ligands such as aptamers.
- the chromatographic support is available under the name CaptureSelect Fibrinogen (Life Technologies).
- the chromatographic support is obtained according to the method described in application WO2018007530.
- the plasma fraction subjected to the method of the invention can thus be obtained according to the method described by the Applicant in application WO2015 / 136217 or application WO2018007530.
- the affinity chromatography can be carried out by continuous chromatography of the SMB (Simulated Moving Bed) type, for example with the NOVASEP SMCC technology (Sequential MultiColumns Chromatography).
- SMB Simulated Moving Bed
- NOVASEP SMCC Sequential MultiColumns Chromatography
- the size of the columns and of the chromatography equipment is reduced significantly (on the order of 10 times).
- the need for resin per batch of fibrinogen can be reduced by 10 to 50% in general.
- the eluates generated in continuous chromatography can either be used continuously for the following stages with or without in-line concentration using in-line concentration equipment of the Cadence Pall type or equivalent from other suppliers.
- a variant consists in pooling the eluates before the continuation of the process, with a possible reconcentration of the eluates before their use.
- the affinity chromatography is carried out on the fibrinogen solution having undergone the viral inactivation treatment, thus the viral inactivation solution is found in the non-adsorbed fraction of chromatography and is removed at the same time as the fibrinogen is purified.
- the elution buffer comprises arginine; the arginine concentration is preferably at least 200 mM at least 300 mM, at least 400 mM, at least 500 mM, at least 600 mM, at least 700 mM, at least 800 mM, at least 900 mM, at least 1 Mr.
- the arginine concentration of the elution buffer is preferably between 200 and 800 mM, between 200 and 700 mM, between 200 and 600 mM, between 200 and 500 mM, between 200 and 400 mM , between 200 and 300 mM.
- the arginine concentration of the elution buffer is preferably between 300 and 800 mM, between 400 and 800 mM, between 500 and 800 mM, between 600 and 800 mM, between 700 and 800 mM.
- the arginine concentration of the elution buffer is preferably between 300 and 800 mM, between 400 and 700 mM, between 400 and 600 mM.
- the elution buffer can also contain other suitable excipients, such as salts and / or amino acids, for example trisodium citrate, Tris, lysine, glycine, and / or isoleucine.
- suitable excipients such as salts and / or amino acids, for example trisodium citrate, Tris, lysine, glycine, and / or isoleucine.
- the elution buffer can consist either of a modification of the pH and / or of the ionic strength.
- the composition comprising fibrinogen comes from milk of transgenic animals, for example obtained according to the method described in WO00 / 17234 or in WO00 / 17239.
- the fibrinogen composition subjected to the process according to the invention has a purity greater than or equal to 70%, preferably greater than or equal to 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, 99%.
- the fibrinogen composition subjected to the method according to the invention advantageously does not comprise other co-purified proteins, advantageously no FXIII and / or fibronectin and / or prothrombin (Fil) and / or thrombin, and / or plasminogen and / or plasmin.
- the fibrinogen composition subjected to the process according to the invention is advantageously devoid of FXIII.
- the fibrinogen composition subjected to the process according to the invention can also comprise one or more accompanying proteins, optionally co-purified.
- the fibrinogen composition subjected to the process according to the invention advantageously comprises FXIII.
- the fibrinogen composition subjected to the process according to the invention does not include multimeric forms of fibrinogen, advantageously no fibrinogen polymers or fibrinogen aggregates.
- the fibrinogen composition subjected to the process according to the invention is concentrated to more than 1 g of fibrinogen / L of solution, preferably to more than 2 g of fibrinogen / L of solution, even more so preferred to more than 3g of fibrinogen / L of solution, to more than 3.5g of fibrinogen / L of solution, to more than 4g of fibrinogen / L of solution, to more than 4.5g of fibrinogen / L of solution.
- the fibrinogen composition subjected to the process according to the invention is concentrated between 2g and 5g of fibrinogen / L of solution.
- it is used without prior dilution. Indeed, preferably, the method according to the invention does not require a prior dilution step of the fibrinogen composition.
- the method according to the invention optionally comprises a step b), according to which at least one fibrinogen filtration step is carried out on a filter having a pore size between 0.08pm and 0.22pm.
- step b) comprises two stages of filtration of fibrinogen on a filter having a pore size of between 0.08pm and 0.22pm.
- the first filtration is carried out on a filter having a pore size of between 0.15 ⁇ m and 0.22 ⁇ m, preferably around 0.2 ⁇ m.
- the second filtration is carried out on a filter having a pore size of between 0.08 ⁇ m and 0.15 ⁇ m, preferably around 0.1 ⁇ m.
- PES polyethersulfone
- the sequence of filters is, prior to step b), balanced with the buffer of the preliminary purification steps, in particular with the elution buffer for the chromatography optionally supplemented with amino acids.
- a fibrinogen composition is recovered.
- the method according to the invention comprises filtering the fibrinogen composition optionally obtained in b), on a symmetrical filter having a pore size between 15 nm and 25 nm: this is step c).
- step b) If step b) is carried out, then the fibrinogen solution obtained in b) is passed through a symmetrical filter having pores with a diameter between 15 nm and 25 nm, preferably 20 nm, and the resulting solution of fibrinogen is recovered. If step b) is not carried out, then the fibrinogen composition obtained by elution from chromatography in step a) is directly passed through a symmetrical filter having pores of diameter between 15 nm and 25 nm, preferably 20 nm, and the resulting fibrinogen solution is recovered.
- step c) is typically carried out at a pressure between 200 and 4000 mbar.
- the nanofiltration of step b) is typically carried out at a pressure between 200 and 1000 mbar, or between 2000 and 4000 mbar.
- the filters used can be defined by their average pore size in nm, by the viruses retained by the filter, by a molecular weight threshold or by the type of symmetry of their membrane.
- the filters used can therefore be filters or any other equivalent filter sold:
- filters from the Planova® range made up of a hollow fiber membrane formed from cellulose regenerated with cuprammonium and marketed by Asahi-Kasei (Planova® 15N, Planova® 20N), and those of the Ultipor® range, composed of a polyvinylidene fluoride membrane modified on the surface and are marketed by Pall (Ultipor DV20, Pegasus SV4), or any other equivalent filter marketed;
- Such filters defined by the viruses retained by the filter, include the Planova BioEX PVDF filters (retention of parvoviruses, modified hydrophilic polyvinylidene fluoride membrane) sold by the company Asahi Kasei Bioprocess, the Pegasus SV4 filters, or Ultipor VF (retention parvoviruses, modified hydrophilic polyvinylidene fluoride membrane) marketed by Pall, Viresolve® NFP filters (retention of parvoriruses, surface-modified polyvinylidene fluoride membrane), Viresolve Pro (retention of parvoriruses, double-layer polyethersulfone membrane) and Viresolve® NFR (retention of retroviruses, polyethersulfone membrane) marketed by Millipore, and Virosart® CPV (retention of canine
- asymmetric filters such as filters from the Planova® range, marketed by Asahi-Kasei (Planova® 15N, Planova® 20N, Planova BioEx), Viresolve NFP and Viresolve Pro (marketed by Merck Millipore), Virosart HF (marketed by Sartorius Stedim) .
- symmetrical filters such as the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall), the Virosart CPV filter (marketed by Sartorius Stedim).
- symmetrical filter means a filter having an equivalent porosity between the internal surface (in contact with the solution to be filtered) and external of the filter. This is in contrast to asymmetric filters for which the internal surface of the filter is often more porous than the external surface.
- the pore size in nm can be measured by a person skilled in the art according to known techniques.
- the nanofiltration carried out in step c) is carried out using a symmetrical type filter.
- the nanofiltration of step c) is carried out using a symmetrical filter, such as the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall), the Virosart CPV filter (marketed by Sartorius Stedim).
- a symmetrical filter such as the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall), the Virosart CPV filter (marketed by Sartorius Stedim).
- the symmetrical filter is in pleated mounting.
- the symmetrical filter is advantageously characterized by a hydrophilic polyvinylidenedifluoride membrane (PVDF).
- PVDF hydrophilic polyvinylidenedifluoride membrane
- the symmetrical filter in pleated assembly characterized by a hydrophilic polyvinylidenedifluoride membrane (PVDF) is a Pegasus SV4 filter (sold by Pall).
- the Applicant has advantageously demonstrated that the symmetrical type filters, such as filters similar to the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall) or Virosart CPV (marketed by Sartorius Stedim) made it possible to carry out nanofiltration of fibrinogen with a load of at least 0.2 kg of fibrinogen / m 2 of membrane and said fibrinogen composition not being previously frozen and / or thawed and obtaining better results than with an asymmetric type filter such as filters from the Planova® range, marketed by Asahi-Kasei (Planova® 15N, Planova® 20N).
- an asymmetric type filter such as filters from the Planova® range, marketed by Asahi-Kasei (Planova® 15N, Planova® 20N).
- this step c) makes it possible to filter a substantial volume of fibrinogen solution, with a very good yield, ie at least 90%.
- This substantial volume corresponds to a capacity of at least 0.2 kg of fibrinogen per m 2 and can go up to at least 5 kg per m 2 .
- the filtration capacity of a fibrinogen composition is advantageously increased by adding increasing concentrations of arginine in the elution buffer for the chromatography carried out prior to the filtration sequence .
- the chromatography elution buffer carried out in step a) comprises an arginine concentration of at least 200 mM and said filtration method has a capacity of at least 0.25 kg / m 2 .
- the chromatography elution buffer carried out in step a) comprises an arginine concentration of at least 200 mM and said filtration method has a capacity of at least 0.30 kg / m 2
- the elution buffer for the chromatography carried out in step a) comprises an arginine concentration of at least 200 mM and said filtration process has a capacity of at least 0.35 kg / m 2 .
- the chromatography elution buffer carried out in step a) comprises an arginine concentration of at least 400 mM and said filtration process has a capacity of at least 0.25 kg / m 2
- the chromatography elution buffer carried out in step a) comprises an arginine concentration of at least 400 mM and said filtration process has a capacity of at least 0.30 kg / m 2 .
- the chromatography elution buffer carried out in step a) comprises an arginine concentration of at least 400 mM and said filtration process has a capacity of at least 0.35 kg / m 2 .
- the filtration capacity is measured by any method known to those skilled in the art. Typically, this is determined as follows: The fibrinogen solution to be nanofiltered is prepurified by chromatography according to the method described in EP1739093. The concentration of the starting fibrinogen solution is 3 g / L.
- the filtration capacity of the filter is determined by analyzing the clogging profile; the maximum filtration capacity corresponds to the quantity of fibrinogen associated with a filtration rate less than 25% of the initial rate.
- the process for filtering a fibrinogen composition according to the invention comprises the following steps:
- A) obtaining the fibrinogen composition said fibrinogen composition being chosen from a cell culture supernatant, milk from transgenic animals, the cryoprecipitate plasma supernatant, the resuspended plasma cryoprecipitate, the fraction I obtained by ethanolic fractionation according to the method of Cohn or of Kistler & Nitschmann, the supernatant and the precipitate obtained after precipitation of a plasma fraction with aluminum hydroxide and / or precipitation at low temperature, and the chromatography eluates and the non-adsorbed fractions chromatography columns obtained from a plasma fraction, a cell culture supernatant or a milk from transgenic animals,
- said filtration process being carried out, without adding arginine after step a), at high capacity and said fibrinogen composition not being previously frozen and / or thawed.
- the process for filtering a fibrinogen composition according to the invention comprises the following steps:
- said filtration process being carried out without adding arginine after step a), at high capacity and said fibrinogen composition not being previously frozen and / or thawed.
- the fibrinogen solution optionally obtained in b) is passed through a filter having pores of diameter between 15 nm and 50 nm prior to step c): this is step b ').
- the filters used can be defined by their average pore size in nm, by the viruses retained by the filter, by a molecular weight threshold or by the type of symmetry of their membrane.
- the filters used can therefore be filters or any other equivalent filter sold:
- filters from the Planova® range made up of a hollow fiber membrane formed from cellulose regenerated with cuprammonium and marketed by Asahi-Kasei (Planova® 15N, Planova® 20N), and those of the Ultipor® range, composed of a membrane of polyvinylidene fluoride modified on the surface and are sold by Pall (Ultipor DV20, Pegasus SV4), or any other equivalent filter sold;
- Such filters defined by the viruses retained by the filter, include the Planova BioEX PVDF filters (retention of parvoviruses, modified hydrophilic polyvinylidene fluoride membrane) sold by the company Asahi Kasei Bioprocess, the Pegasus SV4 filters, or Ultipor VF (retention parvoviruses, modified hydrophilic polyvinylidene fluoride membrane) marketed by Pall, Viresolve® NFP filters (retention of parvoriruses, surface-modified polyvinylidene fluoride membrane), Viresolve Pro (retention of parvoriruses, double-layer polyethersulfone membrane) and Viresolve® NFR (retention of retroviruses, polyethersulfone membrane) marketed by Millipore, and Virosart® CPV (retention of canine
- asymmetric filters such as filters from the Planova® range, marketed by Asahi-Kasei (Planova® 15N, Planova® 20N, Planova BioEx), Viresolve NFP and Viresolve Pro (marketed by Merck Millipore), Virosart HF (marketed by Sartorius Stedim) .
- symmetrical filters such as the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall), the Virosart CPV filter (marketed by Sartorius Stedim).
- symmetrical filter is meant a filter having an equivalent porosity between the internal surface (in contact with the solution to be filtered) and the external surface of the filter.
- the nanofiltration of step b ') is carried out using filters having pores with a diameter between 25 nm and 50 nm, preferably 35 nm.
- the nanofiltration of step b ') is then carried out using the Planova 35 N filter sold by Asahi Kasei Bioprocess or STyLUX by Meissner (40 nm).
- the nanofiltration of step b ’) is carried out using symmetrical filters having pores with a diameter between 15 nm and 25 nm, preferably 20 nm.
- the nanofiltration of step b ’) is then carried out using a symmetrical membrane filter, such as the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall) or Virosart CPV (marketed by Sartorius Stedim).
- the nanofiltration of step b ') and of step c) is carried out on filters of decreasing porosity, advantageously on a filter of porosity 35 nm followed by a symmetrical filter with a porosity of 20 nm.
- the nanofiltration of step b ') is then carried out using the Planova 35 N filter marketed by Asahi Kasei Bioprocess then a symmetrical membrane filter, such as the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall) or Virosart CPV (marketed by Sartorius Stedim).
- the nanofiltration of step b ’) and of step c) is carried out on filters of the same pore size, advantageously on 2 identical filters.
- the nanofiltration of step b ’) is then carried out using a symmetrical membrane filter, such as the Pegasus SV4 or Ultipor DV20 filter (marketed by Pall) or Virosart CPV (marketed by Sartorius Stedim).
- the nanofiltration of step b ’) is typically carried out at a pressure between 200 and 4000 mbar.
- the nanofiltration of step b ’) is typically carried out at a pressure between 200 and 1000 mbar, or between 2000 and 4000 mbar.
- the invention relates to a process for filtering a fibrinogen composition, comprising the following steps:
- said filtration process being carried out without adding arginine after step a), at high capacity and said fibrinogen composition not being previously frozen and / or thawed.
- the solution obtained comprises fibrinogen, and is highly secure.
- step c) of the method according to the invention allows the elimination of at least 2log, advantageously at least 3log, even more advantageously at least 4log, preferably at at least 5 log or at least 6log of small viruses such as parvovirus B19.
- the process for filtering a fibrinogen composition according to the invention comprises the following steps:
- A) obtaining the fibrinogen composition said fibrinogen composition being chosen from a cell culture supernatant, milk from transgenic animals, the cryoprecipitate plasma supernatant, the resuspended plasma cryoprecipitate, the fraction I obtained by ethanolic fractionation according to the method of Cohn or Kistler & Nitschmann, the supernatant and the precipitate obtained after precipitation of a plasma fraction with aluminum hydroxide and / or precipitation at low temperature, and the chromatography eluates and the non-adsorbed fractions chromatography columns obtained from a plasma fraction, a cell culture supernatant or a milk from transgenic animals,
- said filtration process being carried out without adding arginine after step a), at high capacity and said fibrinogen composition not being previously frozen and / or thawed.
- the process for filtering a fibrinogen composition according to the invention comprises the following steps:
- said filtration process being carried out without adding arginine after step a), at high capacity and said fibrinogen composition not being previously frozen and / or thawed.
- the solution obtained in step d) can then be concentrated, for example by ultrafiltration, to contents typically between 10 and 40, preferably between 15 and 25 g of total protein / l, determined by measurements. classics known to those skilled in the art.
- the fibrinogen solution obtained, optionally concentrated, can be subjected to a diafiltration step.
- This step is intended to remove any excess inorganic salt used to obtain solutions having a ionic strength of at most 0.2 M.
- This step may also prove necessary in order to formulate the fibrinogen under optimal conditions.
- the buffer is advantageously suitable either for keeping the fibrinogen composition in liquid form (ready-to-use liquid formulation) or for keeping in lyophilized form (formulation suitable for preservation during the lyophilization step and optionally for 'dry heating step). This allows in this case on the one hand, dry heating of the fibrinogen without risk of denaturation, and, on the other hand, rapid solubilization when the fibrinogen is lyophilized thereafter, typically in 3 to 8 minutes.
- the respective solutions can optionally be lyophilized according to conventional methods and usual conditions.
- the lyophilisates can then be reconstituted in an aqueous medium compatible with clinical use, preferably in purified water for injection (PPI), and directly injected intravenously.
- PPI purified water for injection
- Viral inactivation often includes treatment with chemicals, for example by solvent and / or detergent and / or by heat (pasteurization and / or dry heating) and / or by irradiation (gamma rays and / or UVC )
- This step can be carried out by a conventional chemical viral inactivation treatment, preferably consisting of a solvent-detergent treatment (generally called S / D treatment).
- the viral inactivation chemical agents are preferably mixtures of polysorbate and Tri (n-butyl) phosphate (TnBP), or mixtures of Triton (octoxynol) and TnBP, whose typical concentrations are between 0.1 and 2 %.
- This viral inactivation can be integrated at any stage of the process, but it is judiciously carried out before stage a) of chromatographic purification. In this way, it will contribute to the effective elimination of inactivating agents.
- an additional step of dry viral inactivation heat treatment can be used, carried out on the fibrinogen lyophilisates obtained after the lyophilization step.
- the operating conditions are typically around 80 ° C for 72 hours.
- the elimination of infectious agents can also be carried out by means of deep filtration.
- the filters available are for example filters composed of regenerated cellulose, in which filter aids may have been added, such as cellite, perlite or Kieselguhr earth.
- filters are sold in particular by Cuno (Zeta + VR serial filters), Pall-Seitz (P-series Depth Filter) or Sartorius Sartoclear P depth filters).
- the implementation of the method leads to highly secure fibrinogen solutions, free of viral particles and / or ATNC type contaminants.
- the invention therefore relates to a fibrinogen solution capable of being obtained by the method described above.
- the fibrinogen solution capable of being obtained by the process described above advantageously has a purity greater than or equal to 95% and is advantageously stable without the addition of stabilizing protein such as albumin.
- the fibrinogen solution capable of being obtained by the process described above advantageously has an integral fibrinogen activity with in particular a coagulable fibrinogen / antigenic fibrinogen ratio> 0.9, or even equal to 1.0.
- Example 1 Evaluation of the fibrinogen filtration on a 20 nm symmetrical filter according to the invention
- composition comprising prepurified fibrinogen is obtained according to the method described in application EP1739093.
- Pegasus SV4 filter from Pall Life Sciences, surface 0.00096 m 2 (Pegasus VF SV4, 10MCFSV4, surface 9.6 cm 2 ).
- the solution comprising fibrinogen is concentrated at 3g / L and more than 90% pure
- the filtration pressure was kept constant at 2.1 Bar on the 20 nm filter during all of the filtration.
- the filtration sequence is balanced in the elution buffer of the ion exchange chromatography described in patent EP1739093 comprising arginine.
- the clogging profile of fibrinogen on the 20 nm pore size filter is linear with a decrease proportional to the filtered volume up to 181 L / m 2 .
- the filtration sequence applied made it possible to filter an amount equivalent to 0.5 kg of fibrinogen per m 2 of 20 nm pore size membrane in 6 hours. Higher filterability could have been achieved by extending the filtration time.
- the yield of this nanofiltration is greater than 90%.
- the method according to the invention therefore allows filterability, on a symmetrical filter with a pore size of approximately 20 nm, of a composition comprising fibrinogen without prior freezing / thawing step, or prior dilution from a fibrinogen solution pre-purified by chromatography and eluted by buffer comprising arginine.
- Example 2 Evaluation of the fibrinogen filtration on a 20 nm symmetrical filter Pali DV 20 according to the invention
- composition comprising prepurified fibrinogen is obtained according to the method described in application EP1739093.
- the solution comprising fibrinogen is concentrated to 3.1 g / L and more than 90% pure
- the filtration pressure was kept constant at 2.0 Bar on the 20 nm filter throughout the filtration.
- the filtration sequence is balanced in the elution buffer for the ion exchange chromatography described in patent EP1739093 comprising arginine.
- the clogging profile of fibrinogen on the 20 nm pore size filter is linear with a decrease proportional to the filtered volume up to 136 L / m 2 .
- the filtration sequence applied made it possible to filter an amount equivalent to 0.4 kg of fibrinogen per m 2 of 20 nm pore size membrane in 15 hours. Higher filterability could have been achieved by extending the filtration time.
- Example 3 Evaluation of the fibrinogen filtration on a 20 nm symmetrical filter according to the invention with 20-50 nm prefiltration
- composition comprising prepurified fibrinogen is obtained according to the method described in application EP1739093.
- Pegasus SV4 filter from Pall Life Sciences, surface 0.00096 m 2 (Pegasus VF SV4, 10MCFSV4, surface 9.6 cm 2 ).
- the solution comprising fibrinogen is concentrated to 3g / L and more than 90% pure
- the filtration pressure was kept constant at 2.1 Bar on the 20 nm filter during all of the filtration.
- the filtration sequence is balanced in the elution buffer for the ion exchange chromatography described in patent EP1739093.
- the clogging profile of fibrinogen on the 20 nm pore size filter is linear with a decrease proportional to the filtered volume up to 276 L / m 2 .
- the filtration sequence applied made it possible to filter an amount equivalent to 0.8 kg of fibrinogen per m 2 of 20 nm pore size membrane in 18 hours.
- the yield of this nanofiltration is greater than 90%.
- the method according to the invention therefore allows filterability, on a symmetrical filter with a pore size of approximately 20 nm, of a composition comprising fibrinogen without prior freezing / thawing step, or prior dilution from a fibrinogen solution pre-purified by chromatography and eluted by buffer comprising arginine.
- Example 4 Comparison of the method according to the invention with a method of the prior art on an asymmetric filter of about 20 nm
- composition comprising pre-purified fibrinogen is obtained according to the method described in application EP1739093.
- the chromatography eluate obtained according to EP1739093 is eluted in a buffer comprising 200 mM of arginine.
- the fibrinogen composition is prefiltered using a PES (Polyether sulfone) model Sartopore 2 filter with a porosity of 0.2 - 0.1 pm (100 nm).
- PES Polyether sulfone
- the prefiltered composition is then filtered:
- Planova 20N filter sold by the company Asahi at 395 ⁇ 23 mbar.
- the asymmetric nanofilters tested on a solution of fibrinogen prepurified by chromatography having a concentration of at least 2 g / L show filterabilities of less than 0.1 Kg of fibrinogen per m 2 while the method according to the invention on a symmetrical filter allows achieve filterability greater than 0.2 kg of fibrinogen per m 2 .
- composition comprising pre-purified fibrinogen is obtained according to the method described in application EP1739093. [0166] III - Preparation of the filter balancing buffer:
- the fibrinogen composition is prefiltered using a Minisart High flow model PES (Polyether sulfone) filter with a porosity of 0.2 - 0.1 pm (100 nm).
- PES Polyether sulfone
- Nanofiltration is carried out on the Pegasus SV4 filter from Pall Life Sciences at a pressure of 2.1 +/- 0.1 bar.
- the viral load is measured and produced using the PPV Ultrapure Gold 1% (v / v) product.
- a sample is taken from the nanofiltered fraction after filtration of 79.2 L / m 2 of solution (loaded volume).
- Example 7 Evaluation of the fibrinogen filtration capacity on a 20 nm symmetrical filter as a function of increasing concentrations of arginine in the elution buffer for the chromatography step
- the fibrinogen compositions tested are prepurified by affinity chromatography according to the method described in application EP1739093, using an elution buffer comprising 50 mM of sodium citrate and increasing concentrations of arginine HCL (150 mM, 200 mM , 400 mM)
- a filtration sequence as described in Example 1 is then carried out on the eluate in order to study the clogging profile of fibrinogen on the nanofilter with a porosity of 20 nm.
- composition eluted by buffer chromatography comprising increasing concentrations of arginine, without additional addition of arginine before the nanofiltration step, allows an increase in the nanofiltration capacity 20 nm of fibrinogen.
- increasing concentrations of arginine in the elution buffer according to the invention do not cause clogging of the filter and allow the nanofiltration capacity of the process to be increased, without adding any arginine after the purification step by chromatography. .
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Genetics & Genomics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Biophysics (AREA)
- Biochemistry (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Nanotechnology (AREA)
- Toxicology (AREA)
- Hematology (AREA)
- Zoology (AREA)
- Gastroenterology & Hepatology (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Peptides Or Proteins (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1873741A FR3090321B1 (fr) | 2018-12-21 | 2018-12-21 | Procédé de filtration du fibrinogène |
PCT/FR2019/053235 WO2020128385A1 (fr) | 2018-12-21 | 2019-12-20 | Procédé de filtration du fibrinogène |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3897692A1 true EP3897692A1 (fr) | 2021-10-27 |
Family
ID=66542430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19848895.9A Pending EP3897692A1 (fr) | 2018-12-21 | 2019-12-20 | Procédé de filtration du fibrinogène |
Country Status (7)
Country | Link |
---|---|
US (1) | US20220056107A1 (fr) |
EP (1) | EP3897692A1 (fr) |
CO (1) | CO2021009000A2 (fr) |
FR (1) | FR3090321B1 (fr) |
MA (1) | MA54552A (fr) |
MX (1) | MX2021007553A (fr) |
WO (1) | WO2020128385A1 (fr) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10211632A1 (de) * | 2002-03-15 | 2003-10-09 | Aventis Behring Gmbh | Verfahren zur Abtrennung von Viren aus einer Proteinlösung durch Nanofiltration |
ES2214967B1 (es) | 2003-03-06 | 2005-06-16 | Probitas Pharma, S.A | Procedimiento para la eliminacion de virus en soluciones de fibrinogeno y fibrinogeno obtenido por dicho procedimiento. |
FR2887883B1 (fr) | 2005-06-29 | 2007-08-31 | Lab Francais Du Fractionnement | Procede de separation des proteines fibrinogene, facteur xiii et colle biologique d'une fraction plasmatique solubilisee et de preparation de concentres lyophilises desdites proteines |
HUE028626T2 (en) * | 2008-06-23 | 2016-12-28 | Bio-Products & Bio-Engineering Ag | Stable, functionally intact, virus-inactivated fibrinogen during storage |
US20140154233A1 (en) * | 2012-12-05 | 2014-06-05 | Csl Limited | Method of purifying therapeutic proteins |
US10188965B2 (en) | 2012-12-05 | 2019-01-29 | Csl Behring Gmbh | Hydrophobic charge induction chromatographic depletion of a protein from a solution |
NZ631126A (en) * | 2013-08-08 | 2018-06-29 | Csl Ltd | Contaminant removal method |
FR3018450B1 (fr) | 2014-03-11 | 2016-04-15 | Lab Francais Du Fractionnement | Procede de preparation de proteines plasmatiques humaines |
AU2017292711A1 (en) | 2016-07-06 | 2019-02-07 | Laboratoire Francais Du Fractionnement Et Des Biotechnologies | Stable liquid fibrinogen |
-
2018
- 2018-12-21 FR FR1873741A patent/FR3090321B1/fr active Active
-
2019
- 2019-12-20 WO PCT/FR2019/053235 patent/WO2020128385A1/fr unknown
- 2019-12-20 US US17/416,143 patent/US20220056107A1/en active Pending
- 2019-12-20 EP EP19848895.9A patent/EP3897692A1/fr active Pending
- 2019-12-20 MX MX2021007553A patent/MX2021007553A/es unknown
- 2019-12-20 MA MA054552A patent/MA54552A/fr unknown
-
2021
- 2021-07-08 CO CONC2021/0009000A patent/CO2021009000A2/es unknown
Also Published As
Publication number | Publication date |
---|---|
FR3090321B1 (fr) | 2023-07-14 |
MA54552A (fr) | 2022-03-30 |
WO2020128385A1 (fr) | 2020-06-25 |
MX2021007553A (es) | 2021-08-11 |
FR3090321A1 (fr) | 2020-06-26 |
US20220056107A1 (en) | 2022-02-24 |
CO2021009000A2 (es) | 2021-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE1004178A3 (fr) | Procede de preparation a l'echelle industrielle d'un concentre de facteur von willebrand humain standardise, de tres haute purete, approprie a un usage therapeutique. | |
EP1739093B1 (fr) | Séparation de protéines plasmatiques | |
EP1718673B1 (fr) | Procede de purificaton d' albumine comprenant une etape de nanofiltration, solution et composition a usage therapeutique la contenant | |
FR2920429A1 (fr) | Procede de purification du facteur viii et du facteur von willebrand | |
EP2731966B1 (fr) | Procede de preparation d'un concentre d'immunoglobulines polyvalentes | |
EP1632501B1 (fr) | Procédé de préparation d'un concentré de facteur von Willebrand (FvW) par voie chromatographique et concentré de FvW susceptible d'être ainsi obtenu | |
JP4272562B2 (ja) | フィブリノゲン溶液中のウイルスを除去する方法およびこの方法により得られるフィブリノゲン | |
EP1037923B9 (fr) | Procede de preparation par filtration d'une solution de facteur viii securisee viralement | |
EP0512883B1 (fr) | Procédé de préparation d'un concentré de facteur XI de la coagulation sanguine à haute activité spécifique, approprié à un usage thérapeutique | |
FR2857267A1 (fr) | Formulation stabilisante et solubilisante pour les proteines cryoprecipitables. | |
EP0402205B1 (fr) | Procédé de préparation de solutions d'albumine purifiée | |
EP0555135B1 (fr) | Procédé de fabrication de fibrinogène de très haute pureté | |
CN1867582A (zh) | 制备α-1-抗胰蛋白酶溶液的方法 | |
EP3897692A1 (fr) | Procédé de filtration du fibrinogène | |
FR2952640A1 (fr) | Procede de fabrication d'une preparation de facteur h | |
MXPA06001112A (en) | Process for preparing an alpha-1-antitrypsin solution |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210629 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAX | Request for extension of the european patent (deleted) | ||
RAV | Requested validation state of the european patent: fee paid |
Extension state: MA Effective date: 20210716 |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LABORATOIRE FRANCAIS DU FRACTIONNEMENT ET DES BIOTECHNOLOGIES |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230419 |