EP2155698A1 — Novel thermodynamically stable polymorphic form-l of letrozole
Assigned to Natco Pharma Ltd · Expires 2010-02-24 · 16y expired
What this patent protects
The present invention relates to a novel crystalline Form L of letrozole and a process for preparing the same. Letrozole is useful for the first-line treatment in post-menopausal women with hormone receptor positive (or) locally advanced (or) metastatic breast cancer.
USPTO Abstract
The present invention relates to a novel crystalline Form L of letrozole and a process for preparing the same. Letrozole is useful for the first-line treatment in post-menopausal women with hormone receptor positive (or) locally advanced (or) metastatic breast cancer.
Drugs covered by this patent
- Invokana (CANAGLIFLOZIN) · 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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