Gilead Sciences Signs Agreement with Jounce Therapeutics

Gilead Sciences Inc. has signed an agreement with Jounce Therapeutics Inc., a clinical-stage company focused on the discovery and development of novel cancer immunotherapies and predictive biomarkers, to exclusively license its JTX-1811 program.

JTX-1811 is a monoclonal antibody designed to selectively deplete immunosuppressive tumor-infiltrating T regulatory (TITR) cells. The target of JTX-1811 is CCR8, a chemokine receptor enriched on TITR cells. When JTX-1811 binds to CCR8, it targets TITR cells for depletion by enhanced antibody-dependent cellular cytotoxicity mechanism. The antibody remains on track for filing an Investigational New Drug (IND) application in the first half of 2021.

“We are very pleased to add, upon closing of the transaction, JTX-1811 to our pipeline of investigational immuno-oncology therapies that have the potential to transform care for patients with cancer,” said William A. Lee, PhD, executive vice president of research at Gilead Sciences. “JTX-1811 is complementary to our other oncology candidates and has the potential to be first in a new class of therapies as a treatment for people with both solid tumors and hematological malignancies.”

“Gilead’s investment in Jounce and, specifically, JTX-1811 reinforces the value of our Translational Science Platform and differentiated and sustainable approach to novel immuno-oncology programs, focused on patients with cancer who have yet to benefit from immunotherapy. We look forward to seeing JTX-1811 progress to the clinic,” commented Richard Murray, PhD, chief executive officer and president of Jounce Therapeutics. “Our mission to deliver the right immunotherapy to the right patient population for meaningful and long-lasting benefit remains at the core of our discovery and clinical development work. Our JTX-1811 program is a prime example of these efforts.”

Terms of the Agreement

Under the terms of the agreement, Gilead will make a $85 million upfront payment to, and a $35 million equity investment at a premium in, Jounce upon closing. In addition, Jounce may receive up to an additional $685 million in future clinical, regulatory and commercial milestone payments. Jounce will also be eligible to receive royalties ranging from high single digit to mid-teens based upon worldwide sales, subject to certain adjustments.

Jounce will lead development of JTX-1811 through IND clearance, and thereafter, Gilead will have the sole right to develop JTX-1811. JTX-1811 is not approved anywhere globally. Its efficacy and safety have not been established.

The transaction is expected to close in the second half of 2020.