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Last Updated: November 22, 2019

DrugPatentWatch Database Preview

Details for Patent: 6,881,208

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Which drugs does patent 6,881,208 protect, and when does it expire?

Patent 6,881,208 protects IONSYS and is included in one NDA.

This patent has thirty-one patent family members in nineteen countries.

Summary for Patent: 6,881,208
Title: Method and device for transdermal electrotransport delivery of fentanyl and sufentanil
Abstract:The invention provides an improved electrotransport drug delivery system for analgesic drugs, namely fentanyl and sufentanil. The fentanyl/sufentanil is provided as a water soluble salt (eg, fentanyl hydrochloride) dispersed in a hydrogel formulation for use in an electrotransport device (10). In accordance with one aspect of the invention, the concentration of fentanyl/sufentanil in the donor reservoir (26) solution is above a predetermined minimum concentration, whereby the transdermal electrotransport flux of fentanyl/sufentanil is maintained independent of the concentration of fentanyl/sufentanil in solution. In accordance with a second aspect of the present invention, the donor reservoir (26) of the electrotransport delivery device (10) is comprised of silver and the donor reservoir (26) contains a predetermined "excess" loading of fentanyl/sufentanil halide to prevent silver ion migration with attendant skin discoloration. In accordance with a third aspect of the present invention, a transdermal electrotransport delivered dose of fentanyl/sufentanil is provided which is sufficient to induce analgesia in (eg, adult) human patients suffering from moderate-to-severe pain associated with major surgical procedures.
Inventor(s): Phipps; Joseph B. (Maple Grove, MN), Southam; Mary (Portola Valley, CA), Bernstein; Keith J. (Somerville, NJ), Noorduin; Henk (Bergen op Zoom 4615 HM, NL)
Assignee:
Application Number:08/465,492
Patent Claim Types:
see list of patent claims
Use; Delivery; Device; Formulation;

Drugs Protected by US Patent 6,881,208

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
The Medicines Co IONSYS fentanyl hydrochloride SYSTEM;IONTOPHORESIS, TRANSDERMAL 021338-001 May 22, 2006 DISCN Yes No   Start Trial   Start Trial METHOD FOR IONTOPHORETIC TRANSDERMAL DELIVERY OF FENTANYL HYDROCHLORIDE   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 6,881,208

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 409088   Start Trial
Austria A903696   Start Trial
Australia 6257896   Start Trial
Australia 695465   Start Trial
Belgium 1009505   Start Trial
Brazil 9609137   Start Trial
Canada 2219736   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Merck
Colorcon
Mallinckrodt
McKesson
Dow
AstraZeneca

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