Cenestin

NDA 20992, held by Aspen. Estrogens, Conjugated Synthetic A.

As of Nov 13, 2026, NDA 20992 (Cenestin), held by Aspen, was first approved by FDA on Mar 24, 1999, with 29 approved supplements and 0 published complete response letters.

• First approved: Mar 24, 1999
• Review: Standard
• Supplements approved: 29
• Complete response letters: 0

Approvals, supplements, products and documents come from FDA's Drugs@FDA data files, refreshed daily; Drugs@FDA lists approved applications only. Complete response letters are FDA's published letters. Drugs@FDA and FDA complete response letters