A surprising breakthrough in cancer treatment may come from an unexpected source: a common blood pressure pill. Researchers at Dartmouth Health have found that telmisartan, already FDA-approved for hypertension, could make certain cancer therapies more effective.

"Blood pressure pill telmisartan shows promise in boosting cancer treatment effectiveness."

By increasing DNA damage in cancer cells, boosting type I interferons, and lowering PD-L1 levels, telmisartan helps the immune system better recognize and attack tumors. Early studies suggest it could enhance PARP inhibitors like olaparib, as well as other chemotherapy and immunotherapies.

While human trials are just beginning, the potential is promising. This inexpensive, safe drug may one day help patients overcome treatment resistance and improve outcomes.