RecruitingDrug trialStudy to Evaluate the Efficacy and Safety of BMN 333 Versus Vosoritide in Children With AchondroplasiaThis is a multicenter, multinational, randomized, active-controlled, operationally seamless Phase 2/3 study of BMN 333 in treatment-naïve pediatric participants with achondroplasia (ACH). The study consists of a Phase 2 part and a Phase 3 part.