54 Quality of Life With Ribociclib Plus Aromatase Inhibitor vs Abemaciclib Plus Aromatase Inhibitor as First-line Treatment of HR+/HER2− Advanced Breast Cancer, Assessed via Matching- Adjusted Indirect Comparison (MAIC)ByHope S. Rugo, MD,Joyce O'Shaughnessy, MD,Komal Jhaveri,Sara M. Tolaney, MD, MPH,Fatima Cardoso,Aditya Bardia, MD, MPH,Purnima Pathak,Sina Haftchenary,Peter A. FaschingApril 26th 2023