Last Updated: November 8, 2026

Details for Patent: 8,361,488

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Which drugs does patent 8,361,488 protect, and when does it expire?

Patent 8,361,488 protects RAYALDEE and is included in one NDA.

This patent has fifty-four patent family members in sixteen countries.

Summary for Patent: 8,361,488
Title:Methods and compositions for controlled release oral dosage of a vitamin D compound
Abstract:A stable, controlled release formulation for oral dosing of vitamin D compounds is disclosed. The formulation is prepared by incorporating one or more vitamin D compounds into a solid or semi-solid mixture of waxy materials. Oral dosage forms can be prepared by melt-blending the components described herein and filling gelatin capsules with the formulation.
Inventor(s):Charles W. Bishop, Samir P. Tabash, Sammy Asiamah Agudoawu, Jay A. White, Keith H. Crawford, Eric J. Messner, P. Martin Petkovich
Assignee: Eirgen Pharma Ltd
Application Number:US12/109,983
Patent Claim Types:
see list of patent claims
Composition; Formulation; Compound; Dosage form;

Drugs Protected by US Patent 8,361,488

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Eirgen RAYALDEE calcifediol CAPSULE, EXTENDED RELEASE;ORAL 208010-001 Jun 17, 2016 RX Yes Yes 8,361,488 ⤷  Start Trial Y ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 8,361,488

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office 2481400 ⤷  Start Trial 301085 Netherlands ⤷  Start Trial
European Patent Office 2481400 ⤷  Start Trial 122020000079 Germany ⤷  Start Trial
European Patent Office 2481400 ⤷  Start Trial CA 2020 00059 Denmark ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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