Relay Thera’s Zovegalisib Wins FDA Breakthrough Status for Breast Cancer

Relay Thera’s Zovegalisib Wins FDA Breakthrough Status for Breast Cancer
Relay Thera’s Zovegalisib Wins FDA Breakthrough Status for Breast Cancer
Regulatory News / Oncology February 4, 2026

Relay Thera’s Zovegalisib Wins FDA ‘Breakthrough’ Status

Market Reaction & Analysts
  • Stock Move: +6% ($8.65)
  • Consensus: Moderate Buy
  • Avg Price Target: $16.57
  • Wells Fargo: Overweight ($13)
  • Oppenheimer: Outperform ($14)

Cambridge, USA-based precision medicines specialist Relay Therapeutics today announced that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy designation (BTD) to zovegalisib (RLY-2608) in combination with fulvestrant.

Indication and Patient Population

The BTD is for the treatment of adults with PIK3CA mutant, hormone receptor positive, human epidermal growth factor receptor 2-negative (HR+/HER2-) locally advanced or metastatic breast cancer. This designation specifically covers patients following recurrence or progression on or after treatment with a CDK4/6 inhibitor.

“Approximately 40% of patients with HR+/HER2- advanced breast cancer harbor PIK3CA mutations, and most experience disease recurrence or progression following treatment with CDK4/6 inhibitors, leaving limited therapeutic options.”
— Dr. Don Bergstrom, President of R&D, Relay Therapeutics

Market Impact and Analyst Activity

Relay’s shares gained more than 6% to $8.65 on the news. Recent analyst activity includes upgrades from Wells Fargo (to overweight, $13 target) and Oppenheimer (to outperform, $14 target); the consensus is a Moderate Buy with an average price target of $16.57.

Significance of FDA Recognition

Dr. Bergstrom added that this Breakthrough Therapy designation underscores the FDA’s recognition of the potential of zovegalisib in combination with fulvestrant to meaningfully improve outcomes for these patients, reinforcing the impact of the encouraging clinical evidence demonstrated to date.

Relay Therapeutics looks forward to continuing to collaborate closely with the FDA as they work to advance this program as efficiently as possible for patients.

0 items in Cart
Cart Subtotal:
Go to cart
You will be able to Pay Online or Request a Quote
Catalog
Services
Company

We use cookies only to remember your preferences and provide better browsing experience. We do not sell user information. Here is our privacy policy.

Accept