Patent No. EP3518932 (titled "Treatment Of Prostate Cancer") was filed by Myovant Sciences on Sep 29, 2017. The application was issued on Nov 13, 2024.
Methods for treating prostate cancer using a once-daily oral formulation of a GnRH antagonist, allowing for suspension of treatment to increase serum testosterone levels. The formulation rapidly inhibits sex hormone production without clinical flare, enabling rapid recovery from surgery, radiation therapy, or illness. Treatment can be suspended for planned or unplanned events, with testosterone levels returning to baseline after treatment resumes. The formulation provides more control for patients and physicians compared to depot formulations, enabling flexible treatment management.

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 |
|---|---|---|
| ABG LAW | Aug 7, 2025 | - |
| SANDOZ | Aug 7, 2025 | 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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