Prescribing Changes After Accelerated vs Regular Approval of Oncology Therapies
This study analyzed prescribing patterns for oncology drugs granted FDA Accelerated Approval (AA) versus those later converted to Regular Approval (RA) using data from over 63,000 patients with advanced solid tumors. Prescribing of AA drugs increased sharply—by an average of 23 percentage points—immediately after AA, while conversion to RA led to only a minimal further increase. Off-label use of AA drugs, either in earlier lines of therapy or in biomarker-negative patients, was rare. The findings suggest that oncologists rapidly adopt AA drugs into practice, often without waiting for confirmatory evidence required for RA. In summary, AA status drives substantial and immediate uptake of oncology drugs, highlighting the importance of timely confirmatory trials to ensure clinical benefit.