Patent No. EP2500014 (titled "Slow Release Pharmaceutical Composition Made Of Microparticles") was filed by Debiopharm on Jun 6, 2008. The application was issued on Feb 19, 2025.
Pharmaceutical composition for slow release of LHRH agonist triptorelin, comprising a mixture of two types of biodegradable microgranules made from PLGA copolymer. The first group of microgranules provides an initial burst release of triptorelin within hours, while the second group maintains a sustained release over 6 months. The composition is administered every 6 months for the treatment of prostate cancer.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative |
|---|---|---|
| GENERICS UK | Apr 4, 2019 | ELKINGTON AND FIFE |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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