WO2023031965 - METHOD TO OBTAIN A PURIFIED ANTIBODY COMPOSITION
National phase entry:
Publication Number
WO/2023/031965
Publication Date
09.03.2023
International Application No.
PCT/IN2022/050778
International Filing Date
01.09.2022
Title **
[English]
METHOD TO OBTAIN A PURIFIED ANTIBODY COMPOSITION
[French]
PROCÉDÉ D'OBTENTION D'UNE COMPOSITION D'ANTICORPS PURIFIÉE
Applicants **
DR. REDDY’S LABORATORIES LIMITED
Inventors
KUMAR M, Ram
APUORVA T, Roja
SINGH, Ranjana
JAHAGIRDAR, Kishore
Priority Data
202141040076
03.09.2021
IN
Application details
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| Number of Multi-Dependent Claims | * |
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International Searching Authority |
IP India
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1983 | |
| EPO | Filing, Examination, Granting | 11001 | |
| Japan | Filing, Examination, Granting | 2090 | |
| South Korea | Filing, Examination, Granting | 1886 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
21,700
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
The current invention discloses a method for obtaining a purified antibody composition. The method discloses the use of various chromatography steps in a particular order to obtain a purified composition of a therapeutic monoclonal antibody starting from a composition comprising the monoclonal antibody and one or more process and product related impurities. Further, the method also discloses the use of additional purification steps such as depth filtration, diafiltration, ultrafiltration and tangential flow filtration for obtaining the said purified antibody composition.[French]
La présente invention concerne un procédé d'obtention d'une composition d'anticorps purifiée. Le procédé décrit l'utilisation de diverses étapes de chromatographie dans un ordre particulier pour obtenir une composition purifiée d'un anticorps monoclonal thérapeutique à partir d'une composition comprenant l'anticorps monoclonal et une ou plusieurs impuretés associées à un processus et à un produit. En outre, le procédé décrit également l'utilisation d'étapes de purification supplémentaires telles que la filtration en profondeur, la diafiltration, l'ultrafiltration et la filtration à flux tangentiel pour obtenir ladite composition d'anticorps purifiée.