Bristol Myers Squibb Presents Late-Breaking Phase 3 Data Demonstrating Health Status Benefits of Mavacamten in Patients with Obstructive Hypertrophic Cardiomyopathy at American College of Cardiology’s 70th Annual Scientific Session
At 30 weeks, the change in Kansas City Cardiomyopathy Questionnaire Overall Summary Score (KCCQ OSS) was greater in mavacamten patients than placebo, with similar benefits across all KCCQ subscales.
- At 30 weeks, the change in Kansas City Cardiomyopathy Questionnaire Overall Summary Score (KCCQ OSS) was greater in mavacamten patients than placebo, with similar benefits across all KCCQ subscales.
- Moreover, a greater proportion of mavacamten patients achieved a very large, clinically meaningful improvement (\xe2\x89\xa520 points) in the KCCQ OSS, compared to placebo, 36% [33/92] vs. 15% [13/88].
- A change of at least 5 points is required to be considered clinically significant.
- Mavacamten reduces cardiac muscle contractility by inhibiting excessive myosin-actin cross-bridge formation that results in hypercontractility, left ventricular hypertrophy and reduced compliance.