Tango Therapeutics Announces First Patient Dosed in Phase 1/2 Trial of TNG348 in Patients with BRCA1/2-Mutant and Other HRD+ Cancers
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Tango Therapeutics Announces First Patient Dosed in Phase 1/2 Trial of TNG348 in Patients with BRCA1/2-Mutant and Other HRD+ Cancers

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Tango Therapeutics, Inc.
Tango Therapeutics, Inc.

BOSTON, Jan. 03, 2024 (GLOBE NEWSWIRE) -- Tango Therapeutics, Inc. (NASDAQ: TNGX), a clinical-stage biotechnology company committed to discovering and delivering the next generation of precision cancer medicines, today announced that the first patient has been dosed in the phase 1/2 trial evaluating TNG348 as a single agent and in combination with olaparib, a PARP inhibitor, in patients with BRCA1/2-mutant or other HRD+ (homologous recombination deficient) cancers. TNG348 is a novel, selective inhibitor of USP1 (ubiquitin-specific protease 1). The U.S. FDA granted TNG348 Fast Track designation in September 2023.

“Dosing the first patient in the TNG348 phase 1/2 trial is an important milestone for us and for patients with advanced ovarian, breast and certain other cancers. TNG348 has the potential to become a meaningful treatment for cancers caused by DNA damage repair pathways defects,” said Barbara Weber, M.D., President and Chief Executive Officer of Tango Therapeutics. “As we begin 2024, we are hopeful for the impact we believe we can make for patients by advancing multiple synthetic lethality programs across our clinical-stage pipeline.”

The phase 1/2 trial will evaluate the safety, pharmacokinetics, pharmacodynamics and efficacy of TNG348 as a single agent and in combination with olaparib, a PARP inhibitor, in patients with BRCA1/2-mutant and other HRD+ cancers. HRD+ cancers, including BRCA1/2 mutations, represent up to 50% of ovarian cancers, 25% of breast cancers, 10% of prostate cancers and 5% of pancreatic cancers.

USP1 is an essential enzyme for the survival and proliferation of HRD+ cancer cells. In preclinical models, TNG348 has strong anti-tumor activity, inducing cell death and tumor growth inhibition in multiple xenograft models. Preclinically, TNG348 has strong synergy with PARP inhibitors in BRCA1/2-mutant or other HRD+ cancer models, as evidenced by marked tumor regressions and the ability to restore sensitivity to PARP inhibition in models of acquired resistance to PARP inhibitors.

About Tango Therapeutics

Tango Therapeutics is a clinical-stage biotechnology company dedicated to discovering novel drug targets and delivering the next generation of precision medicine for the treatment of cancer. Using an approach that starts and ends with patients, Tango leverages the genetic principle of synthetic lethality to discover and develop therapies that take aim at critical targets in cancer. This includes expanding the universe of precision oncology targets into novel areas such as tumor suppressor gene loss and their contribution to the ability of cancer cells to evade immune cell killing. For more information, please visit www.tangotx.com.