Sleep-wake Disorder in Blind Individuals
Conditions
Keywords
Non-24, N24HSWD, Blindness, Sleep, Wake, Circadian Rhythm, Nap
Brief summary
Non-24-hour sleep-wake disorder (Non-24) is a condition experienced primarily by totally blind individuals that results in abnormal night sleep patterns and chronic daytime sleepiness. This is a research protocol to develop a patient registry of subjects who may suffer from Non-24 and who are blind. Subjects participate in the study through a phone survey. This registry will be used to better understand, sleep related problems in blind individuals, including the investigation of a potential treatment, recruitment for future clinical studies, and to provide a forum for raising awareness about Non-24. The survey consists of questions regarding the degree of vision impairment and sleep problems that the subjects may be experiencing.
Interventions
OTHERData collection on blindness and sleep problems
Data related to degree of vision impairment and sleep problems is collected through a phone or web survey
Sponsors
Vanda Pharmaceuticals
Study design
Observational model
CASE_ONLY
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
1. Subjects or legal guardians must be at least 18 years of age to participate in the telephone survey. Parents or legal guardians may represent children from 0 through 17 years who meet the following criteria. 2. Subjects must be blind. 3. Subjects must have some self-described problem with sleep or daytime sleepiness.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Number of blind participants | ongoing |
Secondary
| Measure | Time frame |
|---|---|
| Sleep/wake disruptions | ongoing |
Countries
United States
Contacts
Primary ContactVanda Pharmaceuticals
Outcome results
None listed