Scientific advances in key areas combined with collaboration across multiple stakeholders (facilitated by the Heart Valve Collaboratory) could establish a clinical trial network purpose-fit to implement a platform trial to identify and validate effective and safe medical therapies for progressive aortic stenosis. AS, aortic stenosis; AVA, aortic valve area; AVC, aortic valve calcification; EMR, electronic medical record; FDA, Food and Drug Administration; NaF, sodium fluoride; NIH, National Institutes of Health.