The FDA briefing document for ODAC noted that the safety profile for blinatumomab in this setting was similar to was has been demonstrated with the treatment in patients with relapsed/refractory ALL. The median treatment exposure for the 137 patients was 55 days (range, 1-196). Ninety-one percent of patients had fever, 69% had a neurological toxicity, 7% had cytokine release syndrome, and 2% had sepsis.
Fatal adverse events occurred in 3 patients: fatal atypical pneumonia within 30 days of starting treatment; subdural hemorrhage at the site of a prior hemorrhage <30 days after the last dose of blinatumomab; and sepsis.
Blinatumomab is currently approved by the FDA the treatment of adult and pediatric patients with relapsed or refractory B-cell precursor ALL.
FDA Briefing Document Oncologic Drugs Advisory Committee Meeting BLA 125557 S-013 Blincyto (blinatumomab) Applicant: Amgen, Inc. Published Accessed March 7, 2018. http://bit.ly/2oV6FOq.