Tempest to Report New and Updated Data from Global Randomized Combination Study of TPST-1120 in First-Line Hepatocellular Carcinoma

Tempest Therapeutics, Inc. (Nasdaq: TPST), a clinical-stage oncology company developing first-in-class1 therapeutics that combine both targeted and immune-mediated mechanisms, today announced the company plans to report new and updated data from the global randomized Phase 1b/2 combination study of TPST-1120 with atezolizumab and bevacizumab in first-line treatment of hepatocellular carcinoma (HCC) in a premarket press release on Wednesday, October 11, 2023, followed by a webcasted conference call with associated slide presentation at 8:30 a.m. ET on Wednesday, October 11, 2023.

To join the conference call via phone and participate in the live Q&A session, please pre-register online here to receive a telephone number and unique passcode required to enter the call. The live webcast and audio archive of the presentation may be accessed on the investor section of the Tempest website at https://ir.tempesttx.com/. The webcast will be available for replay for 30 days.

About Tempest Therapeutics

Tempest Therapeutics is a clinical-stage oncology company advancing small molecules that combine both tumor-targeted and immune-mediated mechanisms with the potential to treat a wide range of tumors. The company has a diverse portfolio of novel programs ranging from early research to investigation in a randomized global study in first-line cancer patients. The company’s two novel clinical programs, TPST-1120 and TPST-1495, target PPARα and EP2/EP4, respectively, and are advancing through trials designed to study the agents as monotherapies and in combination with approved agents. Tempest is also developing an orally available inhibitor of TREX1, a target that controls activation of the cGAS/STING pathway. Tempest is headquartered in Brisbane, California. More information about Tempest can be found on the company’s website at www.tempesttx.com. Investor Contacts:

Sylvia WheelerWheelhouse Life Science [e-mail]

Aljanae Reynolds Wheelhouse Life Science [e-mail]

1 If approved by the FDA