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Alzheimer DiseasePhase 3NCT00000171

Study of Melatonin: Sleep Problems in Alzheimer's Disease

A Phase 3 study testing Melatonin in people with Alzheimer Disease and Dyssomnias, run by National Institute on Aging (NIA) at 31 sites 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 protocol is a multicenter clinical trial of melatonin for sleep disturbances associated with Alzheimer's disease (AD). Frequent nocturnal awakening is a common behavioral symptom of AD. Nighttime wandering and agitated behavior may result in injuries and sleep disruption for caregivers. Read more about this study

Who is it for?
Ages 55 years and older
Conditions the study is for
Alzheimer Disease, Dyssomnias
What is being tested?
Melatonin
How many people
Not given
Where
31 sitesUnited States
Study dates
Start not givento not given
Phase
Phase 3
Are there results?
None posted in the registry

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 55 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must meet NINCDS-ADRDA criteria for probable Alzheimer's disease (AD). Patients must have disrupted sleep, documented by clinical history and by 1 to 2 weeks of recording using wrist activity monitors.
  • A diagnosis of probable AD.
  • MMSE score 0-26.
  • Hachinski Ischemia Scale score less than or equal to 4.
  • A 2-week history of two or more sleep disorder behaviors, occurring at least once weekly, as reported by the caregiver on the Sleep Disorder Inventory.
  • CT or MRI since the onset of memory problems showing no more than one lacunar infarct in a non-strategic area and no clinical events suggestive of stroke or other intracranial disease since the CT or MRI.
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  • Physically acceptable for study as confirmed by medical history and exam, clinical laboratory results, and EKG.
  • Actigraph evidence of a mean nocturnal sleep time of less than 7 hours per night (at least 5 nights of complete actigraph data must be collected over a single week.
  • Stable home situation with no planned move during the 13-week investigational period.
  • Residing with responsible spouse, family member, or professional caregiver who is present during the night and will agree to assume the role of the principal caregiver for the 13-week protocol, including arranging transport for the patient to and from the investigators' clinic, answering questions regarding the patient's condition, and assuming responsibility for medication and actigraph procedures.
  • Ability to ingest oral medication and participate in all scheduled evaluations.
  • Six grades of education or work history sufficient to exclude mental retardation.
  • 55 years of age or older.
  • Hamilton Depression Rating Scale score of 15 or less.
  • Stable medication (dose and type) for non-excluded concurrent medical conditions for 4 weeks prior to the screening visit.

Who cannot join

  • Sleep disturbance is acute (within the last 2 weeks).
  • Sleep disturbance is associated with an acute illness with delirium.
  • Clinically significant movement disorder that would interfere with the actigraph readings.
  • Not having a mobile upper extremity to which to attach an actigraph.
  • Severe agitation.
  • Pain syndrome affecting sleep.
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  • Unstable medical condition.
  • Use of investigational or unapproved medications within 4 weeks of the screening visit.
  • Patient unwilling to maintain caffeine abstinence after 2:00 pm for the duration of the protocol.
  • Patient unwilling to comply with the maximum limit of two alcoholic drinks per day, and only one alcoholic drink after 6:00 pm for the duration of the protocol.
  • Use of melatonin within 2 weeks of screening visit.
  • Clinically significant abnormal laboratory findings that have not been approved by the Project Director.
  • Residing in a facility without a consistent caregiver present during the night who can function as the primary informant.
  • Caregiver deemed too unreliable to supervise the wearing of the actigraph, to maintain the sleep diary, or to bring the patient to the scheduled visits.
  • Autoimmune disease, such as rheumatoid arthritis and polymyalgia rheumatica.

Trial locations and contacts

31 sites in 1 country.

31 sites in 1 country

United States31 sites
  • University of Michigan

    Ann Arbor, Michigan, 48109

  • Emory University

    Atlanta, Georgia, 30329

  • Augusta VA Medical Center

    Augusta, Georgia, 30904

  • Johns Hopkins University

    Baltimore, Maryland, 21224

  • University Hospitals of Cleveland

    Cleveland, Ohio, 44120

  • University of Texas

    Dallas, Texas, 75235

  • Baylor College of Medicine

    Houston, Texas, 77030

  • University of California Irvine Institute for Brain Aging and Dementia

    Irvine, California, 92697-4285

  • Mayo Clinic Jacksonville

    Jacksonville, Florida, 32225

  • University of Kansas Medical Center

    Kansas City, Kansas, 66160

  • University of California, San Diego

    La Jolla, California, 92037

  • University of Kentucky

    Lexington, Kentucky, 40536-0230

  • University of Southern California

    Los Angeles, California, 90033-1039

  • University of California, Los Angeles

    Los Angeles, California, 90095-1769

  • Mount Sinai (Miami)

    Miami, Florida, 33140

  • University of Minnesota

    Minneapolis, Minnesota, 55455

  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37212-8646

  • Yale University, Alzheimer's Disease ResearchUnit

    New Haven, Connecticut, 06520-8037

  • New York University Medical Center

    New York, New York, 10016

  • Columbia University

    New York, New York, 11032

  • Brown University

    Pawtucket, Rhode Island, 02860

  • University of Pennsylvania

    Philadelphia, Pennsylvania, 19104-4283

  • University of Pittsburgh

    Pittsburgh, Pennsylvania, 15213

  • Oregon Health Sciences University

    Portland, Oregon, 97201-3098

  • Mayo Clinic at Rochester

    Rochester, Minnesota, 14620

  • University of Rochester Medical Center

    Rochester, New York, 14620

  • University of Washington

    Seattle, Washington, 98108

  • Southern Illinois University

    Springfield, Illinois, 62702

  • Washington University

    St Louis, Missouri, 63110

  • University of South Florida

    Tampa, Florida

  • University of Arizona

    Tucson, Arizona, 85724-5023

Other trials in United States

About this study

This protocol is a multicenter clinical trial of melatonin for sleep disturbances associated with Alzheimer's disease (AD). Frequent nocturnal awakening is a common behavioral symptom of AD. Nighttime wandering and agitated behavior may result in injuries and sleep disruption for caregivers. Alternatives are sorely needed to the currently available sleep medications that have marginal efficacy and serious side effects. Melatonin is a naturally occurring hormone secreted by the pineal gland. It has soporific effects with oral administration and is well tolerated. It enhances sleep in normal older people. Melatonin also may help sleep disturbances associated with AD; however, this remains to be proven.

Read the detailed description

In Alzheimer's disease , sleep disruption is one of the most common behavioral problems, occurring in 45 percent of patients. These nocturnal awakenings and agitation lead to considerable burden for caregivers and frequently lead families to the decision of nursing home placement. The proposed study is a randomized, double blind, parallel group, placebo controlled, clinical trial. Placebo will be compared with two doses of melatonin: a 2.5 mg, slow- release preparation and a 10 mg immediate release preparation. One hundred and fifty community-residing AD patients with disrupted sleep will be recruited. Included subjects will meet NINCDS-ADRDA criteria for probable AD. Prior to study entry, disrupted sleep will be documented by clinical history and by 1 to 2 weeks of recording using wrist activity monitors. The treatment period will last 8 weeks. Rest/activity patterns will be recorded by wrist activity monitors. The primary outcome measure will be the change in nocturnal sleep time from baseline to the end of the treatment phase.

Other outcomes also will be examined, including the time awake after sleep onset, sleep latency, sleep efficiency, daytime agitation, and changes in cognition. The relative effectiveness of high and low dose melatonin will be assessed. Adverse events and side effects will be compared by treatment. This study should provide the data necessary to determine whether melatonin is a safe and effective treatment for disrupted sleep associated with AD.

Being tested
Melatonin
Keywords
Alzheimer's disease, Sleep disorders, Melatonin
Medical subject headings
Alzheimer Disease, Dyssomnias, Sleep Wake Disorders

What participants receive

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

Timeline

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

  1. First posted1 Nov 1999 (estimated)

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
IDs, dates and publications
ClinicalTrials.gov ID
NCT00000171
Sponsor's protocol ID
IA0006
Other IDs
3U01AG010483-08S2
Status last verified
Mar 2005
First submitted
29 Oct 1999
Last updated
24 Jun 2005
Results posted
No

Publications

  • Singer C, Tractenberg RE, Kaye J, Schafer K, Gamst A, Grundman M, Thomas R, Thal LJ; Alzheimer's Disease Cooperative Study. A multicenter, placebo-controlled trial of melatonin for sleep disturbance in Alzheimer's disease. Sleep. 2003 Nov 1;26(7):893-901. doi: 10.1093/sleep/26.7.893.

    PubMed 14655926
  • McCleery J, Sharpley AL. Pharmacotherapies for sleep disturbances in dementia. Cochrane Database Syst Rev. 2020 Nov 15;11(11):CD009178. doi: 10.1002/14651858.CD009178.pub4.

    PubMed 33189083

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Melatonin in people with Alzheimer Disease and Dyssomnias, run by National Institute on Aging (NIA) at 31 sites 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 15 inclusion and 15 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 24 Jun 2005. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 31 sites 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.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00000171, which also lists 2 linked publications.

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 24 Jun 2005.

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