Study Assessing Long-term Safety and Efficacy of Alpelisib in Patients With PIK3CA-Related Overgrowth Spectrum (PROS) Who Previously Participated in Study CBYL719F12002 (EPIK-P1)

Study Summary

This is a prospective interventional Phase II multi center study, open label, preceded by a retrospective non-interventional period, to assess the long-term safety and efficacy of alpelisib, in pediatric and adult participants with PROS.