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TerminatedNCT00688935Updated Nov 27, 2019Results posted

Young Blind Child Melatonin Treatment Study

An interventional study of Melatonin in Blindness, sponsored by Oregon Health and Science University. Terminated at 1 site in United States. Open to participants aged 1 Year to 20 Years. Per ClinicalTrials.gov, last updated 2019-11-27.

Sponsored by Oregon Health and Science University · Not applicable, Interventional, and Diagnostic

Why this study was terminated
Unique provision in the American Recovery and Reinvestment Act prevented approval of second year no-cost-extension in which completion of analyses were planned.
Phase
Not applicable
Study type
Interventional
Enrollment
9
Allocation
Non-randomized
Ages
1 Year to 20 Years
Sex
All
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Study summary

The primary goal of this study is to identify the presence of desynchronized circadian rhythms in 25 children by measuring melatonin secretion in serial blood or saliva samples, and to rule out any primary sleep disorders.

Read the detailed description

Subjects will complete 25-hours of hourly salivary, plasma sampling biweekly. Melatonin will be measured in urine, for children under the age of 3. Sleep and behavioral questionnaires will be completed by parents and/or teachers. This study involves an optional, 1-year melatonin treatment sub-study, in which the children will take 0.1 - 3mg daily. A second optional sub-study involves a study of the child's sleep through polysomnography, in order to identify possible sleep disorders.

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Conditions studied

  • Blindness

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Keywords

  • melatonin
  • circadian rhythms
  • sleep
  • sleep disorders
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In context

Blindness

161 studies on the registry are indexed under Blindness; 33 are open to participants now.

This study's enrollment of 9 is below the median of 30 across 105 interventional studies indexed under Blindness.

Browse Blindness studies →

Lead sponsor

Oregon Health and Science University is the lead sponsor of 676 studies on the registry; 136 are open to participants now.

Of its 49 completed or terminated interventional studies of FDA-regulated products, 36 (73%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
1 Year to 20 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age 1-20 years
  • Blindness for the past year (verified by an ophthalmologic exam), but otherwise in general good health.

Exclusion criteria

Exclusion Criteria:

  • Abnormal heart, lung, kidney, liver disease or a primary sleep disorder,
  • Significant clinical abnormalities (other than blindness),
  • Use of medications with known effects on melatonin metabolism (e.g. beta-adrenergic blocking drugs or tricyclic antidepressants).
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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Non-randomized
Intervention model
Single group
Masking
Single (Participant)
Enrollment
9 participants (actual)

Study arms

  • Experimental
    Melatonin

    Subjects may opt to enroll in this treatment sub-study involving melatonin treatment (0.1 - 3 mg, daily) for up to 1 year, with a minimum of 6 weeks. Throughout treatment, subjects will continue their saliva, plasma, and/or urine sampling to test for treatment efficacy.

    Biological: Melatonin

Interventions

  • BiologicalMelatonin

    0.1-3 mg, daily, up to 1 year (minimum duration of 6 weeks)

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What researchers measure

Primary outcomes

  1. Circadian Phase Marker, as Measured by the Melatonin Levels in Salivary, Plasma and/or Urine Serial Sampling.

    Time frame: every 2-4 weeks throughout the entire study

Secondary outcomes

  1. Polysomnography (Sleep Assessment)

    Time frame: 1 12-hour assessment any time during the study

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Results

Posted Nov 27, 2019
Limitations and caveats
Analyses were not completed because, a unique provision in the American Recovery and Reinvestment Act (ARRA) of 2009 funding source unexpectedly prevented approval of a second year no-cost-extension in which completion of analyses were planned.

Participant flow

Participant flow — Overall Study
MilestoneMelatonin
Started0
Completed0
Not completed0

Outcome measures

PrimaryCircadian Phase Marker, as Measured by the Melatonin Levels in Salivary, Plasma and/or Urine Serial Sampling.
Time frame:
every 2-4 weeks throughout the entire study

No measurements were reported for this outcome.

SecondaryPolysomnography (Sleep Assessment)
Time frame:
1 12-hour assessment any time during the study

No measurements were reported for this outcome.

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Melatonin———

Baseline characteristics

The PI has retired from the institution. Sincere efforts were made to contact the PI/study team members, but were unsuccessful. No study data are available.

Age, Categorical
Age, CategoricalMelatonin
<=18 years—
Between 18 and 65 years—
>=65 years—
Age, Continuous
Age, ContinuousMelatonin
Sex: Female, Male
Sex: Female, MaleMelatonin
Female—
Male—
Region of Enrollment
Region of Enrollment(participants)Melatonin
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Study locations

1 site
  • Sleep and Mood Disorders Lab, Oregon Health & Science University
    Portland, Oregon 97239, United States
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References and documents

Publications

  • Palm L, Blennow G, Wetterberg L. Long-term melatonin treatment in blind children and young adults with circadian sleep-wake disturbances. Dev Med Child Neurol. 1997 May;39(5):319-25. doi: 10.1111/j.1469-8749.1997.tb07438.x. PubMed 9236698 ↗
  • Sack RL, Lewy AJ, Blood ML, Keith LD, Nakagawa H. Circadian rhythm abnormalities in totally blind people: incidence and clinical significance. J Clin Endocrinol Metab. 1992 Jul;75(1):127-34. doi: 10.1210/jcem.75.1.1619000. PubMed 1619000 ↗
  • Tzischinsky O, Skene D, Epstein R, Lavie P. Circadian rhythms in 6-sulphatoxymelatonin and nocturnal sleep in blind children. Chronobiol Int. 1991;8(3):168-75. doi: 10.3109/07420529109063923. PubMed 1794154 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 27, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00688935
Lead sponsor
Oregon Health and Science University
Responsible party
Sponsor
First posted
Jun 3, 2008
Start date
Jan 2005
Primary completion
May 2015
Completion
May 2015
Results posted
Nov 27, 2019
Last update
Nov 27, 2019

Study contacts

Alfred J Lewy, MD, PhD
principal investigator · Oregon Health and Science University

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Nov 2019. You cannot join it, but the record below documents what was studied.

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