Tanaproget

Alternative Name: NSP-989; NSP-989 COMBO; Tanaproget COMBO; WAY-166989

Description: Tanaproget (NSP-989) is a novel, non-steroidal, high affinity, high efficacy, and very selective progesterone receptor agonist. Due to its much more selective binding profile relative to most conventional, steroidal progestins, tanaproget may prove to produce fewer side effects in comparison.

Product Details

Duration: One day

Regimen:

Dose: Doses of 0.01, 0.03, 0.1, 0.3, and 1mg of tanaproget were studied.

Active Pharmaceutical Ingredient (API):

Status Details

Began discovery in: Prior to 2005

Status Details:
  • Sublicensed to Pfizer in 2010.

Additional Information

References:
  • Zhang Z, et al. (2005). Molecular and pharmacological properties of a potent and selective novel nonsteroidal progesterone receptor agonist tanaproget. J. Biol. Chem. 280 (31): 28468-75.

  • Bapst JL, et al. (2006) Pharmacokinetics and safety of tanaproget, a nonsteroidal progesterone receptor agonist, in healthy women. Contraception. 74 (5): 414-8.

  • Ligand Pharmaceuticals, Inc. website: http://www.ligand.com/

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