Articles from Aviva Bio

Aviva Bio’s AVA-291 Emerges as Best-in-Class Therapy to Address FDA-Identified Safety Concerns of Testosterone for Women
Aviva Bio, a biotechnology company developing next-generation hormone therapies, highlighted the importance of advancing testosterone therapies designed for women following the FDA's September 17 public workshop, “Testosterone Use in Menopausal Women.”
By Aviva Bio · Via Business Wire · September 21, 2026
Aviva Bio Announces FDA Guidance on Development Pathway for Women’s Testosterone Therapy and New Evidence of a Reduced Risk of Breast Cancer Cell Proliferation for AVA-291
Aviva Bio, a new biotechnology company focused on rewriting the narrative around hormone-based medicine, announced today it has received formal feedback from the FDA in a Type B meeting regarding the requirements for the development of a testosterone (T) therapy for women. AVA-291 (d3-T) is a next-generation testosterone designed to retain T’s androgen activity while resisting aromatization. The aromatization of T locally in breast tissue is linked to an increased risk of breast cancer.1,2,3 Today’s announcement marks an important milestone in advancing testosterone therapy for women, a patient population with significant unmet need that has been long constrained by safety concerns and the absence of an FDA-approved, female-specific therapy.
By Aviva Bio · Via Business Wire · January 26, 2026