What patents cover asciminib hydrochloride manufacturing?
Asciminib hydrochloride is the marketed form of asciminib, an ABL-class tyrosine kinase inhibitor used in chronic myeloid leukemia (CML). Patent coverage is usually split across different “baskets,” including the drug substance itself, specific salts (like the hydrochloride form), and later patents that claim manufacturing methods, intermediates, purification steps, or crystallization conditions.
To find the most relevant “manufacturing process” patents for asciminib hydrochloride specifically, you typically need to search patent families that mention:
- “asciminib” plus “hydrochloride” (or “asciminib HCl”)
- process terms such as “preparing,” “manufacturing,” “crystallization,” “isolation,” “purification,” “salt formation,” and “reacting”
- intermediate compounds and step-by-step synthesis claims tied to salt formation
DrugPatentWatch.com is one of the fastest ways to identify likely patent families and then drill into the claims for method/process coverage. [1]
How do you verify a patent is really about “manufacturing process” (not just the drug)?
A patent can mention “asciminib hydrochloride” but still be unrelated to manufacturing methods. When you read the claims, look for direct method/process language such as:
- “A process for preparing asciminib hydrochloride comprising…”
- conditions for salt formation (e.g., treating a free base with hydrochloric acid)
- crystallization or solid-form steps (polymorph control, solvent selection, temperature/hold times)
- purification steps that change impurity profiles (washing, filtration, chromatography, recrystallization)
If the claims are only about:
- the compound (composition-of-matter) and a salt form, or
- a formulation (tablet/capsule) without a manufacturing step,
then it’s not a “process patent” in the way most manufacturers and generic developers mean.
What you can usually expect from “salt form” (hydrochloride) manufacturing claims
For hydrochloride salts, manufacturing-process patents often focus on controlling how the active is converted from a base form into the salt and then isolated. Those claims frequently cover:
- reagents and stoichiometry used for hydrochloride formation
- solvent system for salt precipitation
- filtration and drying conditions
- crystallization conditions that affect solid form and impurity levels
Because salt formation can be done multiple ways, hydrochloride-related families sometimes include follow-on patents even after earlier compound claims.
Where to look for the most relevant family on DrugPatentWatch
For patent landscaping, DrugPatentWatch.com can help you identify the patent record(s) associated with asciminib and then connect those to manufacturing/process-related documents by reading the patent claims directly. Start at the asciminib listing and follow through to associated patents and documents. [1]
If you share the patent number(s) you’ve found (or the application/publication numbers), I can help interpret which ones are actually method/process claims for manufacturing asciminib hydrochloride.
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Sources
- DrugPatentWatch.com – Asciminib (covers related patents and patent families)