RecruitingPhase 3Drug trialA Study to Investigate the Efficacy, Pharmacokinetics, and Safety of Mitapivat in Pediatric Participants With α- or β-Non-Transfusion-Dependent ThalassemiaThe primary objective of this study is to compare the effect of mitapivat versus placebo on anemia in pediatric participants with alpha- or beta-non-transfusion-dependent thalassemia.