Light Therapy for People with PWS

Study Purpose

Maimonides Medical Center is seeking volunteers with PWS between the ages of 6 and 18 years old to participate in a clinical research study to see if light therapy can be used to reduce Excessive Daytime Sleepiness (EDS).

All doctor visits and meetings with the study team members will be remote via video sessions. Eligible participants will receive study-related materials in the mail, such as a Fitbit device and a light therapy lamp.

Participants will be randomized in a 1:1 ratio to receive either 30 minutes of LT or placebo lamp therapy in the mornings and 30 minutes in the afternoon daily for 3 weeks. Following the completion of this initial 3-week period, all participants, including those who received placebo lamp therapy will be given the option to continue in the open-label phase of the study for an additional 3 weeks.

Recruitment Criteria

To be in the study, participants must meet the following basic criteria:

  • Have a diagnosis of PWS
  • Between the ages of 6 and 18 years
  • History of daytime sleepiness


This study will be available at the following site:  

Maimonides Medical Center
4802 10th Avenue, Brooklyn NY 11219                                                                                 


Contact: Maimonides Medical Center
Phone: (718) 283-8170



New Call-to-action