Jazz Biliary Tract Cancer BLA Approved
FDA has granted Jazz Pharmaceuticals accelerated approval for a BLA for Ziihera (zanidatamab-hrii), a bispecific HER2-directed antibody for previously treated, unresectable or metastatic HER2-positive biliary tract cancer.
Approval is based on data from the HERIZON-BTC-01 (NCT04466891) open-label, single-arm trial in 62 patients, according to an agency release. The major efficacy outcome measures were objective response rate (52%) and duration of response (14.9 months), it says.
Regarding safety, FDA says the prescribing information requires a boxed warning for embryo-fetal toxicity. “The most common adverse reactions reported in at least 20% of patients who received zanidatamab-hrii were diarrhea, infusion-related reactions, abdominal pain, and fatigue,” it adds.