Patent No. EP3131582 (titled "Pharmaceutical Compositions For The Treatment Of Cystic Fibrosis Transmembrane Conductance Regulator Mediated Diseases") was filed by Vertex Pharmaceuticals Incorporated on Apr 14, 2015. The application was issued on May 23, 2018.
Pharmaceutical compositions for treating CFTR-mediated diseases with improved properties. The compositions contain a mixture of therapeutic agents, including a CFTR corrector and a CFTR potentiator, in spray dried dispersion form. The dispersions are substantially free of polymer. The spray drying process helps to improve the properties of the therapeutic agents when combined in this way. The compositions can be used to treat cystic fibrosis by providing enhanced CFTR function.

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 | Feb 22, 2019 | TER MEER STEINMEISTER & PARTNER |
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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