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.
Patent No.:
Date of Patent:
Sep. 12, 2023
Filed:
Mar. 26, 2018
W. L. Gore & Associates, Inc., Newark, DE (US);
Paul C. Begovac, Flagstaff, AZ (US);
Robert L. Cleek, Flagstaff, AZ (US);
Mei Li, Flagstaff, AZ (US);
Abstract
The present disclosure is directed to injectable formulations that include biodegradable polymers based on trimethylene carbonate (TMC) with mole fractions of polylactic acid (PLA) and/or polyglycolic acid (PGA) that are used to deliver a bioactive agent to a targeted site. Excipients such as polyethylene glycol (PEG) may be added to the formulations to reduce the injection force and/or to modulate the release of the bioactive agent. Suitable biodegradable polymers for use in the injectable formulations include D,L-PLA:TMC, D-PLA:TMC, L-PLA:TMC, TMC:PLA:PGA and variations thereof. Additionally, copolymers of TMC and PLA and terpolymers of TMC:PLA:PGA may be formed into nanoparticles and delivered to the target site with an injectable crosslinkable polyethylene glycol system. In at least one embodiment, the injectable formulations are used to treat ocular diseases.