EP3812378A1 — Crystal form of arn-509, preparation method therefor and use thereof
Assigned to Crystal Pharmaceutical Suzhou Co Ltd · Expires 2021-04-28 · 5y expired
What this patent protects
The present disclosure relates to novel crystalline forms of ARN-509 (structure shown in formula I), processes for preparation of the novel crystalline forms, pharmaceutical composition of the novel crystalline forms, and uses of the novel crystalline forms for preparing drug pro…
USPTO Abstract
The present disclosure relates to novel crystalline forms of ARN-509 (structure shown in formula I), processes for preparation of the novel crystalline forms, pharmaceutical composition of the novel crystalline forms, and uses of the novel crystalline forms for preparing drug products of androgen receptor antagonists and for treating prostate cancer. The crystalline forms of ARN-509 provided by the present disclosure have one or more improved properties compared with the prior art, and is of great value to the future optimization and development of drugs.
Drugs covered by this patent
- Erleada (apalutamide) · Johnson & Johnson
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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