US Patent

US9339499 — Treating pain in patients with hepatic impairment

Method of Use · Assigned to Pernix Ireland Pain Ltd · Expires 2033-07-25 · 7y remaining

Vulnerability score 45/100 Strong — defensible against typical IPR challenges

What this patent protects

This patent protects a method of using an extended release hydrocodone composition to treat pain in patients with hepatic impairment.

USPTO Abstract

An extended release composition for an analgesic active pharmaceutical ingredient which may be an opioid, preferably hydrocodone as the only active ingredient. The extended release composition preferably comprises a extended release composition which may be in the form of beads contained in an oral dosage form such as gelatin capsules. The composition is designed to release hydrocodone in a way such that the increase in hydrocodone exposure in hepatically impaired patients is not clinically significant. The oral dosage units are supplied as part of a kit, which also includes a primary package and a package insert all sold as a commercially marketed product. The primary package and package insert are contained in an optional secondary package and the package insert does not contain a warning, a dosing instruction, or a dosing table specifically directed to patients suffering from mild, moderate or severe hepatic impairment, and preferably explicitly states that dosing adjustment is not required for mild or moderate hepatic impairment.

Drugs covered by this patent

FDA Patent Use Codes

When a patent is method-of-use, FDA lists it once per applicable indication ("U-code"). Each U-code carves out a specific therapeutic use that generic filers must either license or design around.

CodeDescriptionDrug
U-1810 hydrocodone-bitartrate
U-1810 hydrocodone-bitartrate
U-1810 hydrocodone-bitartrate
U-1810 hydrocodone-bitartrate
U-1810 hydrocodone-bitartrate
U-1810 hydrocodone-bitartrate

Patent Metadata

Patent number
US9339499
Jurisdiction
US
Classification
Method of Use
Expires
2033-07-25
Drug substance claim
No
Drug product claim
No
Assignee
Pernix Ireland Pain Ltd
Source
FDA Orange Book + USPTO grounding via Google Patents

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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