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Last Updated: December 9, 2019

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Details for Patent: 6,238,695

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Which drugs does patent 6,238,695 protect, and when does it expire?

Patent 6,238,695 protects SUSTIVA and is included in one NDA.

Protection for SUSTIVA has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has thirty-five patent family members in twenty-six countries.

Summary for Patent: 6,238,695
Title: Formulation of fast-dissolving efavirenz capsules or tablets using super-disintegrants
Abstract:The present invention provides improved oral dosage form formulations of efavirenz that are useful in the inhibition of human immunodeficiency virus (HIV), the prevention or treatment of infection by HIV, and in the treatment of the resulting acquired immune deficiency syndrome (AIDS). In particular, the present invention relates to compressed tablets or capsules comprising efavirenz that contain one or more disintegrants that enhance the dissolution rate of the efavirenz in the gastrointestinal tract thereby improving the rate and extent of absorption of efavirenz in the body. The present invention also relates to the process of making such tablets or capsules.
Inventor(s): Makooi-Morehead; William T. (Wallingford, PA), Buehler; John D. (Ambler, PA), Landmann; Brian R. (Hoboken, NJ)
Assignee: DuPont Pharmaceuticals Company (Wilmington, DE)
Application Number:09/286,902
Patent Claim Types:
see list of patent claims
Dosage form; Formulation; Process; Composition; Use;

Drugs Protected by US Patent 6,238,695

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bristol Myers Squibb SUSTIVA efavirenz CAPSULE;ORAL 020972-001 Sep 17, 1998 AB RX Yes No   Start Trial   Start Trial Y   Start Trial
Bristol Myers Squibb SUSTIVA efavirenz CAPSULE;ORAL 020972-002 Sep 17, 1998 DISCN Yes No   Start Trial   Start Trial Y   Start Trial
Bristol Myers Squibb SUSTIVA efavirenz CAPSULE;ORAL 020972-003 Sep 17, 1998 AB RX Yes Yes   Start Trial   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 6,238,695

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 019031   Start Trial
Austria 223719   Start Trial
Australia 3463799   Start Trial
Australia 756422   Start Trial
Brazil 9908810   Start Trial
Canada 2321523   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Express Scripts
Johnson and Johnson

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