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Patient Registry of Blind Subjects With Sleep-related Problems

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ClinicalTrials.gov Identifier: NCT01195558
Recruitment Status : Recruiting
First Posted : September 6, 2010
Last Update Posted : December 14, 2017
Information provided by (Responsible Party):

Study Description
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.

Condition or disease Intervention/treatment
Sleep-wake Disorder in Blind Individuals Other: Data collection on blindness and sleep problems

Study Design

Study Type : Observational
Estimated Enrollment : 10000 participants
Observational Model: Case-Only
Time Perspective: Cross-Sectional
Official Title: Development of a Patient Registry of Blind Subjects With Sleep-related Problems
Study Start Date : April 2010
Estimated Primary Completion Date : April 2030
Estimated Study Completion Date : April 2030

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Sleep Disorders
U.S. FDA Resources

Groups and Cohorts

Group/Cohort Intervention/treatment
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 Name: Data Collection

Outcome Measures

Primary Outcome Measures :
  1. Number of blind participants [ Time Frame: ongoing ]

Secondary Outcome Measures :
  1. Sleep/wake disruptions [ Time Frame: ongoing ]

Eligibility Criteria

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
General population of blind individuals

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.
Contacts and Locations

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01195558

Contact: Vanda Pharmaceuticals 1-844-361-2424

United States, District of Columbia
Vanda Pharmaceuticals Recruiting
Washington, District of Columbia, United States, 20037
Contact    844-361-2424      
Sponsors and Collaborators
Vanda Pharmaceuticals
Principal Investigator: Joseph T. Hull, PhD Vanda Pharmaceuticals
More Information

Responsible Party: Vanda Pharmaceuticals
ClinicalTrials.gov Identifier: NCT01195558     History of Changes
Other Study ID Numbers: Pro00005099
First Posted: September 6, 2010    Key Record Dates
Last Update Posted: December 14, 2017
Last Verified: December 2017

Keywords provided by Vanda Pharmaceuticals:
Circadian Rhythm

Additional relevant MeSH terms:
Sleep Wake Disorders
Nervous System Diseases
Neurologic Manifestations
Signs and Symptoms
Mental Disorders