Karen Midthun, MD
The FDA has approved the first-in-class oncolytic immunotherapy talimogene laherparepvec (T-VEC; Imlygic) for the local treatment of unresectable cutaneous, subcutaneous, and nodal lesions in patients with melanoma recurrent after initial surgery, based on results from the phase III OPTiM study.
There were 12 patient deaths within 30 days of the last dose of T-VEC, including 10 in the primary OPTiM study and 2 in an extension of the study. Nine of the deaths were associated with progressive disease, with the remaining three attributed to myocardial infarction, cardiac arrest, and sepsis. There were four patient deaths in the GM-CSF arms, two each in the primary and extension analyses.
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