Cytokinetics has moved from a long, often frustrating development-stage narrative into one of the cleanest “now prove the launch” stories in cardiovascular biotech. The company’s first approved medicine, MYQORZO (aficamten), is approved in the United States, China and the European Union for adults with symptomatic obstructive hypertrophic cardiomyopathy, and the U.S. launch began in January 2026 with the REMS, specialty pharmacy network and patient-support system active at availability. That changes the way $CYTK should be analyzed. The old question was whether aficamten could reach the market. The new question is whether Cytokinetics can convert a differentiated label into durable prescriptions, reimbursement access, center adoption and eventually a self-sustaining specialty cardiology franchise.