Stable liquid pharmaceutical composition

US11639391B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11639391-B2
Application numberUS-201816604031-A
CountryUS
Kind codeB2
Filing dateApr 18, 2018
Priority dateApr 18, 2017
Publication dateMay 2, 2023
Grant dateMay 2, 2023

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

The present invention provides a stable liquid formulation of an antibody in phosphate-amino acid based dual buffer system. The antibody formulated in phosphate-amino acid based dual buffer system imparts optimum stability to the antibody, at lower as well as higher concentrations. Further, the antibody formulated in phosphate-amino acid based buffer system has low viscosity and is suitable for therapeutic administration of high concentrations of antibody.

First claim

Opening claim text (preview).

The invention claimed is: 1. A stable liquid tocilizumab formulation, consisting of tocilizumab, a phosphate-amino acid dual buffer system and one or more pharmaceutically acceptable excipients, and wherein the concentration of the antibody stabilized is from about 10 mg/ml to about 200 mg/ml; the amino acid is selected from the group consisting of histidine, glycine, and aspartate, and the excipients are selected from the group consisting of sorbitol, arginine and polysorbate. 2. The formulation according to claim 1 , wherein the tocilizumab formulated in the phosphate-amino acid buffer remains stable under one of the following storage conditions at 2-8° C. for at least 6 months or at 25° C. for at least 6 months, or at 40° C. for at least 2 weeks. 3. The formulation according to claim 1 , wherein the amino acid acts as counter ion to the phosphate component of the buffer in the formulation. 4. The formulation according to claim 1 , wherein the formulation has a viscosity of less than 10 cp. 5. The formulation according to claim 1 , wherein the concentration of buffer in the said formulation is less than 100 mM. 6. The formulation according to claim 1 , wherein the formulation does not contain anti-oxidants. 7. A stable liquid formulation of tocilizumab according to claim 1 , wherein the formulation maintains at least 95% of monomeric content and/or contains less than 5% of aggregates of the antibody, after storage at 2-8° C. for at least 6 months or at 25° C. for at least 6 months, or at 40° C. for at least 2 weeks. 8. The formulation according to claim 1 , wherein the formulation does not contain methionine.

Assignees

Inventors

Classifications

  • Stabilisation, fragmentation · CPC title

  • Stability, e.g. half-life, pH, temperature or enzyme-resistance · CPC title

  • Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin · CPC title

  • against receptors for cytokines, lymphokines, interferons · CPC title

  • against translation products of oncogenes · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US11639391B2 cover?
The present invention provides a stable liquid formulation of an antibody in phosphate-amino acid based dual buffer system. The antibody formulated in phosphate-amino acid based dual buffer system imparts optimum stability to the antibody, at lower as well as higher concentrations. Further, the antibody formulated in phosphate-amino acid based buffer system has low viscosity and is suitable for…
Who is the assignee on this patent?
Dr Reddys Laboratories Ltd
What technology area does this patent fall under?
Primary CPC classification A61K39/39591. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue May 02 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).