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Sleep DisorderNCT00795236

Melatonin Studies of Totally Blind Children

A study testing Melatonin in people with Sleep Disorder and Blindness, run by Oregon Health and Science University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to learn more about abnormal body rhythms in blind boys and girls that keep them from falling asleep at bed-time or cause them difficulty staying alert during the day. The investigators hope to learn if there are any differences between the body rhythms of girls and boys. Read more about this study

Who is it for?
Ages 5 to 20 yearsHealthy volunteers can take part
Conditions the study is for
Sleep Disorder, Blindness
What is being tested?
Melatonin
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
13 participants
Where
1 siteUnited States
Study dates
Nov 2009to Jun 2015
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 5 to 20 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Who may be able to join

  • Totally blind
  • Between 5-8 yrs or 17-20 yrs of age

Who cannot join

  • Pregnancy
  • Light perception
  • Low melatonin production
  • Taking melatonin
  • Co-morbid medical disorders (such as seizure disorders)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Oregon Health and Science University

    Portland, Oregon, 97239

Other trials in United States

About this study

Official title: Melatonin Studies in Young Blind Children and Adolescents

The purpose of this study is to learn more about abnormal body rhythms in blind boys and girls that keep them from falling asleep at bed-time or cause them difficulty staying alert during the day. The investigators hope to learn if there are any differences between the body rhythms of girls and boys. The investigators also want to investigate whether age or puberty have an effect on body rhythms.

Read the detailed description

Subjects will be asked to collect saliva samples in their home hourly throughout the daytime, approximately every 2 weeks. Subjects may be monitored for up to a year, after which they will be discontinued from the study. If subjects are found to be naturally entrained to the 24-hour day, they will be monitored longitudinally for changes. Subjects will be discontinued after their monitoring period is over or after an entrained status has been confirmed. While no specific time commitment is required, we hope most subjects will participant for 4 months - 2 years.

Being tested
Melatonin
Keywords
melatonin
Medical subject headings
Sleep Wake Disorders, Blindness

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MelatoninDrug

    One 0.5 mg tablet of melatonin will be taken by subjects who are free-running and willing to enter the intervention phase of the study. These subjects will take melatonin until entrainment status is confirmed or throughout the duration of the study.

Study groups in NCT00795236
Study groupRoleWhat they receive
ObservationalNo interventionObserve to determine free-running versus entrained status.
MelatoninExperimentalSubjects with free-running rhythms will take melatonin.
Receives: Drug: Melatonin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To Test for a Proportional Gender Difference in Circadian Status (Free-running Versus Entrained) in Blind Children and in Adolescents, a Chi-square Test of Significance Will be Used for Each Age Group.

    Measured: Approximately 1 year

  2. To Test for a Proportional Difference in Circadian Status (Free-running Versus Entrained) Between Pre and Post- Pubertal Males in Blind Boys and Young Men, a Chi-square Test of Significance Will be Used for Each Age Group.

    Measured: Approximately 1 year

  3. To Determine the Efficacy of Melatonin Treatment in Entraining Blind Free-running Children and Young Adults, a Binomial Test Will be Used.

    Measured: Approximately 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Nov 2008 (estimated)
  2. Study startNov 2009
  3. Primary completionJun 2015
  4. Study completionJun 2015

Why it stopped: Unique provision in the American Recovery and Reinvestment Act prevented approval of second year no-cost-extension in which completion of analyses were planned.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
13 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00795236
Sponsor's protocol ID
eIRB 4664
Other IDs
2R01HD042125-06
Status last verified
Nov 2019
First submitted
19 Nov 2008
Last updated
27 Nov 2019
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Melatonin in people with Sleep Disorder and Blindness, run by Oregon Health and Science University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 27 Nov 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 27 Nov 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To Test for a Proportional Gender Difference in Circadian Status (Free-running Versus Entrained) in Blind Children and in Adolescents, a Chi-square Test of Significance Will be Used for Each Age Group. (time frame: Approximately 1 year). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Nov 2019.

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