BRISBANE, Calif., Aug. 10, 2023 (GLOBE NEWSWIRE) -- Tempest Therapeutics, Inc. (Nasdaq: TPST), a clinical-stage oncology company developing first-in-classⁱ therapeutics that combine both targeted and immune-mediated mechanisms, today reported financial results for the quarter ended June 30, 2023 and provided a corporate update.

“2023 continues to be a productive and potentially transformative year for Tempest,” said Stephen Brady, chief executive officer of Tempest. “In the second quarter, we presented data from our second clinical program, TPST-1495, the company’s novel dual EP2/EP4 antagonist designed to selectively modulate the prostaglandin pathway, both at ASCO and in a paper published in Cancer Research Communications. These presentations were made on the heels of announcing early exciting triplet data from our lead TPST-1120 program demonstrating a clinically-meaningful improvement over standard of care alone in first-line HCC patients in an ongoing, global, randomized Phase 1b/2 study. We expect to be able to discuss an updated and comprehensive data set from the formal review of this trial in the second half of 2023.”

Recent Highlights

• TPST-1120 (clinical PPARα antagonist): announced positive early results from the ongoing randomized first-line HCC study comparing TPST-1120 combined with the standard-of-care regimen of atezolizumab and bevacizumab, with head-to-head to standard-of-care alone. The data were positive in multiple categories, and demonstrated a favorable safety profile:
  • Unconfirmed responses of 30% for the TPST-1120 triplet arm (12/40) vs. 17.2% for the active control arm (5/29), demonstrating a 74.4% relative improvement in objective response rate (ORR);
  • Confirmed responses of 17.5% for the TPST-1120 triplet arm (7/40) vs. 10.3% for the active control arm (3/29), demonstrating a 69.9% relative improvement in confirmed ORR;
  • 47.5% (19/40) of the TPST-1120 arm patients are on treatment vs. 23.3% (7/30) in the control arm; and
  • 80% (32/40) of the TPST-1120 arm patients are on study vs. 50% (15/30) in the control.ⁱⁱ
• TPST-1495 (clinical dual EP2/4 prostaglandin receptor antagonist): (i) presented data from a Phase 1 study evaluating TPST-1495 as a monotherapy and in combination with the anti-PD-1 checkpoint inhibitor pembrolizumab in advanced solid tumors at the 2023 American Society of Clinical Oncology (ASCO) Annual Meeting; (ii) published mechanism of action data highlighting the increased potency of the molecule against prostaglandin-driven tumor models in Cancer Research Communications, a journal of the American Association for Cancer Research; and (iii) continued enrollment of an endometrial cancer-specific arm investigating the two highest doses of TPST-1495 in combination with pembrolizumab.

Potential Upcoming Milestones

• TPST-1120 (clinical PPARα antagonist): we expect to be able to discuss an updated and comprehensive data set from the formal review of the ongoing, global, randomized Phase 1b/2 study in first-line liver cancer patients in the second half of 2023.
• TPST-1495 (clinical dual EP2/4 prostaglandin receptor antagonist): we plan to report data from the combination arm at the two highest TPST-1495 doses in patients with advanced endometrial cancer in 2024.
• TREX1 Inhibitor (preclinical tumor-selective STING pathway activator): we expect to advance new proprietary small molecule series TREX1 inhibitors generated through insights resulting from human TREX1-inhibitor co-crystal structures.

Financial Results

Second Quarter 2023

• Tempest ended the second quarter with $17.6 million in cash and cash equivalents, compared to $31.2 million on December 31, 2022.
• Net loss and net loss per share for the quarter ended June 30, 2023 were $7.6 million and $0.54, respectively, compared to $9.2 million and $0.79, respectively, for the same period in 2022.
• Research and development expenses for the quarter ended June 30, 2023 were $4.4 million compared to $5.7 million for the same period in 2022. The decrease was primarily due to a decrease in costs incurred from contract research organizations and third-party vendors, partially offset by an increase in personnel costs, as well as facilities expenses.
• General and administrative expenses for the quarter ended June 30, 2023 were $3.1 million. The decrease was primarily due to a decrease in consulting and professional expenses.

Year-to-Date

• Net cash used in operations for the six months ended June 30, 2023 was $14.7 million.
• Net loss and net loss per share for the six months ended June 30, 2023 were $15.2 million and $1.09, respectively, compared to $17.7 million and $1.88, respectively, for the same period in 2022.
• Research and development expenses for the six months ended June 30, 2023 were $9.1 million compared to $10.8 million for the same period in 2022. The $1.7 million decrease was primarily due to a decrease in costs incurred from contract research organizations and third-party vendors, partially offset by an increase in personnel costs, as well as facilities expenses.
• General and administrative expenses for the six months ended June 30, 2023 were $6.0 million compared to $6.2 million for the same period in 2022. The $0.2 million decrease was primarily due to a decrease in consulting and professional expenses.
  
  

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 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.

Forward-Looking Statements

This press release contains forward-looking statements (including within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended (the “Securities Act”)) concerning Tempest Therapeutics, Inc. These statements may discuss goals, intentions, and expectations as to future plans, trends, events, results of operations or financial condition, or otherwise, based on current beliefs of the management of Tempest Therapeutics, as well as assumptions made by, and information currently available to, management of Tempest Therapeutics. Forward-looking statements generally include statements that are predictive in nature and depend upon or refer to future events or conditions, and include words such as “may,” “will,” “should,” “would,” “could”, “expect,” “anticipate,” “plan,” “likely,” “believe,” “estimate,” “project,” “intend,” and other similar expressions. All statements that are not historical facts are forward-looking statements, including any statements regarding: the design, initiation, progress, timing, scope and results of clinical trials; anticipated therapeutic benefit and regulatory development of Tempest Therapeutic’s product candidates; the Company’s ability to deliver on potential value-creating milestones; the Company’s ability to achieve its operational plans. Forward-looking statements are based on information available to Tempest Therapeutics as of the date hereof and are not guarantees of future performance. Any factors may cause differences between current expectations and actual results, including: unexpected safety or efficacy data observed during preclinical or clinical trials; clinical trial site activation or enrollment rates that are lower than expected; changes in expected or existing competition; changes in the regulatory environment; and unexpected litigation or other disputes. Other factors that may cause actual results to differ from those expressed or implied are discussed in greater detail in the “Risk Factors” section of the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2023 and other documents filed by the Company from time to time with the Securities and Exchange Commission. Except as required by applicable law, Tempest Therapeutics undertakes no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events or otherwise. These forward-looking statements should not be relied upon as representing Tempest Therapeutics’ views as of any date subsequent to the date of this press release and should not be relied upon as prediction of future events. In light of the foregoing, investors are urged not to rely on any forward-looking statement in reaching any conclusion or making any investment decision about any securities of Tempest Therapeutics.

Investor Contacts:

Sylvia Wheeler
Wheelhouse Life Science Advisors
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Aljanae Reynolds
Wheelhouse Life Science Advisors
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ⁱ If approved by the FDA
ⁱⁱ As of data cutoff date, February 8, 2023