A Phase 3, Open-Label, Long-Term Extension Study to Evaluate the Safety and Efficacy of Vosoritide in Children With Hypochondroplasia

Inclusion Criteria: * Participants must have completed the Week 52 visit for 111-303 or 111-212 and have open epiphyses as assessed by left hand antero-posterior (AP) X-rays * Parent(s) or guardian(s) must be willing and able to provide written, signed informed consent after the nature of the study has been explained and prior to performance of any study-related procedure * Females ≥ 10 years old or who have begun menses must have a negative pregnancy test at the Baseline visit and be willing to have additional pregnancy tests during the study * If sexually active, participants must be willin…