Nociceptin-based analgesics

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai

Reexamination Certificate

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Reexamination Certificate

active

07049287

ABSTRACT:
The invention relates to a family of hexapeptide compounds exhibiting activity with regard to the ORL-1 receptor. The compounds share a general formula of Arg-Tyr-Tyr-Arg-Trp-Arg, and may be constructed having modifications or substitutions at any position, and may include modifications of the amino- and carboxy-termini of the hexapeptide. These compounds include agents exhibiting agonist activity and antagonist activity when exposed to the human ORL-1 receptor. As such, the hexapeptides may be useful as analgesics, anxiolytics, diuretics, and anti-cancer agents.

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patent: WO - 99/44627 (1999-09-01), None
patent: WO - 01/98324 (2001-12-01), None
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Thomsen, Christian, et al., “[3H]ac-RYYRWK-HN2, A Novel Specific Radioligand for the Nociceptin/Orphanin FQ Receptor,” Naunyn-Schmiedeberg's Arch Pharmacol (2000) 362, 538-545.
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