Exciting Update on Non-24-Hour Sleep-Wake Disorder Studies

As many of you know, Vanda has been conducting research on a sleep problem related to total blindness called Non-24-Hour Sleep-Wake Disorder. They have received many questions asking for information about how the study is progressing and if it is working. They are pleased to be able to share the following information from the screening stage of the study that you may find interesting.

  • The drug Tasimelteon was shown for the first time to reset the body clock and to align it to a constant 24-hour day in patients suffering from Non-24-hour
  • Over 1,000 totally blind NLP (no light perception) individuals have taken the Vanda sleep survey
  • Over 75% report a sleep problem
  • 70% of those screened in the Vanda’s main clinical study have a confirmed diagnosis of Non-24-Hour
  • Over half of patients in the study have a sleepless night once per month
  • Vanda’s main study is close to the target 100 patients but still needs additional participants
  • Vanda has donated over $30,000 to blind related non-profits


For more information on Non-24-Hour Sleep-Wake Disorder, go to http://24sleepwake.com/. To take the survey, call 888-389-7033, visit www.non24registry.com or email info@non24registry.com.