Proportion of subjects with a durable response (PC response at ≥75% of a minimum of 3 PC assessment visits occurring in the last 14 weeks of the extension study), stratified by baseline PC and splenectomy status in the extension study (observed data). *Avatrombopag responders in the extension study. Shown are the proportions of all avatrombopag-treated subjects with response-level PC (full analysis population).