The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 31, 2023

Filed:

Jul. 17, 2018
Applicant:

Medincell S.a., Jacou, FR;

Inventors:

Christophe Roberge, Jacou, FR;

Anthony Rech, Jacou, FR;

Jean-Manuel Cros, Jacou, FR;

Myriam Abbassi, Jacou, FR;

Adolfo López-Noriega, Jacou, FR;

Lea Pebrel, Jacou, FR;

Audrey Petit, Jacou, FR;

Juliette Serindoux, Jacou, FR;

Assignee:

MEDINCELL S.A., Jacou, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/00 (2006.01); A61K 31/167 (2006.01); A61K 31/5415 (2006.01); A61K 31/7048 (2006.01); A61K 38/12 (2006.01); A61K 47/34 (2017.01); C08G 63/664 (2006.01); C08L 67/04 (2006.01); A61K 31/445 (2006.01); A61K 31/519 (2006.01); A61K 9/20 (2006.01);
U.S. Cl.
CPC ...
A61K 9/0024 (2013.01); A61K 9/0019 (2013.01); A61K 9/0029 (2013.01); A61K 9/204 (2013.01); A61K 9/2031 (2013.01); A61K 31/167 (2013.01); A61K 31/445 (2013.01); A61K 31/519 (2013.01); A61K 31/5415 (2013.01); A61K 31/7048 (2013.01); A61K 38/12 (2013.01); A61K 47/34 (2013.01); C08G 63/664 (2013.01);
Abstract

The present invention provides a biodegradable drug delivery composition comprising: (i) a mixture of at least three different block copolymers, wherein each block copolymer is: (a) a biodegradable triblock copolymer having the formula: A-B-Awherein A is a polyester and B is polyethylene glycol and v and x are the number of repeat units from 1 to 3,000 and w is the number of repeat units from 3 to 300 and v=x or v≠x; or (b) a biodegradable diblock copolymer having the formula: C-Awherein A is a polyester and C is an end-capped polyethylene glycol and y and z are the number of repeat units with y=2 to 250 and z=1 to 3,000; and wherein the mixture comprises at least one (a) and at least one (b); and the weight ratio between (a) and (b) is 1:19 to 5:1; and (ii) at least one pharmaceutically active ingredient.


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