Stable formulation for recombinant Anti-PD-1 monoclonal antibody

A stable formulation for recombinant anti-PD-1 monoclonal antibodies, including a buffer, osmolarity regulator, stabilizer, and surfactant, addresses storage and transport instability, maintaining antibody stability and therapeutic efficacy for extended periods.

CA3180463CActive Publication Date: 2026-07-07SINO CELL TECH INC

Patent Information

Authority / Receiving Office
CA · CA
Patent Type
Patents
Current Assignee / Owner
SINO CELL TECH INC
Filing Date
2021-06-17
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing formulations of recombinant anti-PD-1 monoclonal antibodies suffer from instability during storage and transport, leading to reduced potency and increased immunogenicity, which compromises their therapeutic efficacy.

Method used

A stable formulation comprising a recombinant anti-PD-1 monoclonal antibody, a buffer, an osmolarity regulator, a stabilizer, and a surfactant, with specific concentration ranges and pH conditions, ensuring physical and chemical stability and biological activity.

Benefits of technology

The formulation maintains the antibody's stability and therapeutic activity for at least 42 months at 2-8°C and 12 months at 25°C, ensuring its effectiveness upon administration.

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Abstract

Provided is a stable formulation for a recombinant monoclonal antibody, consisting of a recombinant anti-PD-1 monoclonal antibody, a buffer, an osmotic pressure regulator, a stabilizer, and a surfactant. The pharmaceutical formulation may enhance the stability of the antibody and prolongs a validity period of the antibody in aqueous formulations. Fig.8 is elected to be the abstract figure.
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