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Last Updated: March 28, 2024

Patent: 5,955,425


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Summary for Patent: 5,955,425
Title: Parathyroid hormone analogues for the treatment of osteoporosis
Abstract:This invention describes analogs of human parathyroid hormone which have increased activities in bone restoration, and increased bioavailabilities. The peptides described are derivatives of hPTH-(1-31) which have lactams formed for example, between either Glu.sup.22 and Lys.sup.26 or Lys.sup.26 and Asp.sup.30. In addition, the natural Lys.sup.27 may be substituted by either a Leu or other hydrophobic residues, such as Ile, norleucine, Met, Val, Ala, Trp, or Phe. Typically, these analogs have enhanced abilities to stimulate adenylyl cyclase in rat osteosarcoma cells, and show increased activities in bone restoration, using the ovariectomized rat model. The analogs also show enhanced activities and bioavailabilities, as demonstrated by their hypotensive effects in the rat.
Inventor(s): Morley; Paul (Ottawa, CA), Neugebauer; Witold (Ottawa, CA), Ross; Virginia J. S. (Gloucester, CA), Whitfield; James F. (Ottawa, CA), Willick; Gordon E. (Orleans, CA), Barbier; Jean-Rene (Gatineau, CA)
Assignee: National Research Council of Canada (CA)
Application Number:08/691,647
Patent Claims:see list of patent claims

Details for Patent 5,955,425

Applicant Tradename Biologic Ingredient Dosage Form BLA Approval Date Patent No. Expiredate
Nps Pharmaceuticals, Inc. NATPARA parathyroid hormone For Injection 125511 01/23/2015 ⤷  Try a Trial 2014-06-20
>Applicant >Tradename >Biologic Ingredient >Dosage Form >BLA >Approval Date >Patent No. >Expiredate

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