Observational Study of VYKAT™ XR in Patients With Prader-Willi Syndrome

Patients with PWS at participating sites who are initiating treatment or have initiated treatment with VYKAT XR, including patients who were previously treated with DCCR in a prior clinical study, will be invited to participate. Data from treatment prior to enrollment either from clinical practice or from previous DCCR clinical trials may be collected retrospectively.

Clinical care will not be mandated by the protocol.