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Sleep Initiation and Maintenance DisordersPhase 2NCT00230737

Effects of Melatonin on Insomnia Symptoms in Older Adults

A Phase 2 study testing Melatonin 0.4 mg and Melatonin 4.0 mg in people with Sleep Initiation and Maintenance Disorders, run by Nalaka Gooneratne at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will determine whether melatonin tablets will increase the sleep of older adults with insomnia. Read more about this study

Who is it for?
Ages 65 years and olderHealthy volunteers can take part
What is being tested?
Melatonin 0.4 mg and Melatonin 4.0 mg
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
27 participants
Where
1 siteUnited States
Study dates
Oct 2004to May 2008
Phase
Phase 2
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 65 years and older
  • All sexes
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • History of insomnia
  • Low melatonin levels at study entry

Who cannot join

  • History of sleep apnea (temporary cessation of breathing during sleep)
  • Diagnosis of restless legs syndrome
  • Current alcohol or substance abuse
  • Dementia
  • Anemia
  • Liver disease
  • Leukemia or lymphoma
  • Asthma

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

Other trials in United States

About this study

Official title: Melatonin Randomized Trial for Insomnia in the Elderly

This study will determine whether melatonin tablets will increase the sleep of older adults with insomnia.

Read the detailed description

Melatonin is a hormone secreted predominantly during the sleep period, suspected to have a strong link to the circadian sleep-wake cycle. Melatonin is also available in a pill form and, when administered during the day, tends to have a sedative effect. Clinical trials that have examined the nocturnal effects of melatonin have focused on patients of any age who have insomnia, regardless of their endogenous melatonin levels. Data indicate, however, that individuals with low endogenous melatonin levels may be more responsive to exogenous melatonin. Generally, melatonin levels decrease with age; therefore, older individuals with insomnia represent an ideal population in which to study the effects of exogenous melatonin on sleep. This study will provide older adults with insomnia melatonin tablets to determine whether the tablets will increase their sleep.

Participation in this study will last 10 weeks and will comprise overnight visits at 2 timepoints, the beginning of Week 1 and the end of Week 6. At study entry, participants will be admitted to the General Clinical Research Center for a 3-night stay, beginning with an overnight urine screen to confirm low melatonin levels. Participants will also be asked to begin a sleep diary documenting their sleep quality and quantity; the diary will be used throughout the study. During Night 1 at the clinic, participants will have urine samples collected throughout the night. Night 2 will be an adaptation night to allow participants to get used to their surroundings. On Night 3, participants will have sensors attached to their bodies and a polysomnograph machine will be used to measure their sleep efficiency. Participants with sleep efficiencies of 80% or higher will complete their study participation. Participants with sleep efficiencies less than 80% will be randomly assigned to one of three study treatments daily for 6 weeks: high-dose melatonin (4.0 mg), low-dose melatonin (0.4 mg), or placebo. Participants will have study visits at Weeks 1, 3, and 6 to monitor for adverse events. After 6 weeks, participants will have 2 more overnight clinic visits that will be identical to Nights 2 and 3 from the beginning of the study. Sleep questionnaires, cognitive tests, and psychomotor tests will be used to assess participants at the beginning of the study, after 6 weeks, and at the end of the study. One month after the end of the study, participants will have a follow-up visit to be reassessed for adverse events.

Being tested
Melatonin 0.4 mg, Melatonin 4.0 mg, Placebo
Keywords
Aged, Sleep, Insomnia, Melatonin, Neurobehavioral Manifestations, Circadian Rhythms, Human, Polysomnography, Elderly
Medical subject headings
Sleep Initiation and Maintenance Disorders, Neurobehavioral Manifestations

What participants receive

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

  • Melatonin 0.4 mgDrug

  • Melatonin 4.0 mgDrug

  • PlaceboDrug

Study groups in NCT00230737
Study groupRoleWhat they receive
AExperimentalMelatonin 0.4 mg
Receives: Drug: Melatonin 0.4 mg
BExperimentalMelatonin 4.0 mg
Receives: Drug: Melatonin 4.0 mg
CPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

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

  1. Peak Melatonin Level

    Pharmacokinetic analysis of maximum melatonin level

    Measured: day 42

Timeline

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

  1. First posted3 Oct 2005 (estimated)
  2. Study startOct 2004
  3. Primary completionMay 2008
  4. Study completionMay 2008

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00230737
Sponsor's protocol ID
R01AT001521-01A1
Other IDs
R01AT001521-01A1
Status last verified
Jan 2017
First submitted
12 Sep 2005
Last updated
8 Mar 2017
Data monitoring committee
Yes

Publications

  • Gooneratne NS, Edwards AY, Zhou C, Cuellar N, Grandner MA, Barrett JS. Melatonin pharmacokinetics following two different oral surge-sustained release doses in older adults. J Pineal Res. 2012 May;52(4):437-45. doi: 10.1111/j.1600-079X.2011.00958.x. Epub 2012 Feb 21.

    PubMed 22348451

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Melatonin 0.4 mg and Melatonin 4.0 mg in people with Sleep Initiation and Maintenance Disorders, run by Nalaka Gooneratne 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 8 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: finished, as of the sponsor's last update on 8 Mar 2017. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 8 Mar 2017). 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?

Peak Melatonin Level (time frame: day 42). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00230737, which also lists 1 linked publication.

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 8 Mar 2017.

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