Among patients with hormone receptor-positive breast cancer treated with an aromatase inhibitor plus Ibrance (palbociclib), those who displayed a rising ESR1 mutation detected in their blood before disease progression doubled their median progression-free survival following a switch to Faslodex (fulvestrant) plus Ibrance, according to results from the phase III PADA-1 clinical trial.
At its most recent meeting, the FDA Oncologic Drugs Advisory Committee focused on perioperative clinical trials, which the agency defined as neoadjuvant phase followed by surgery and continuing with adjuvant treatment using the same experimental agent (The Cancer Letter, July 26, 2024).
