Patient Registry of Blind Subjects With Sleep-related Problems

Purpose

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.

Condition

  • Sleep-wake Disorder in Blind Individuals

Eligibility

Eligible Ages
All ages
Eligible Sex
All
Accepts Healthy Volunteers
No

Criteria

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.

Study Design

Phase
Study Type
Observational
Observational Model
Case-Only
Time Perspective
Cross-Sectional

Arm Groups

ArmDescriptionAssigned Intervention
Blind with sleep problems Blind individuals with no light perception and with sleep-related problems who may suffer from Non-24
  • Other: Data collection on blindness and sleep problems
    Data related to degree of vision impairment and sleep problems is collected through a phone or web survey
    Other names:
    • Data Collection

Recruiting Locations

Vanda Pharmaceuticals
Washington, District of Columbia 20037
Contact:
Vanda Pharmaceuticals
202-734-3400

More Details

NCT ID
NCT01195558
Status
Recruiting
Sponsor
Vanda Pharmaceuticals

Study Contact

Vanda Pharmaceuticals
(202) 734-3400