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CompletedPhase 3

Trazodone for Sleep Disorders in Alzheimer's Disease

Trazodone for the Treatment of Sleep Disorders in Alzheimer's Disease: a Randomised, Double-blind, Placebo-controlled Study

Asset

Trazodone

Listed sites

1

Recruiting sites

-

Enrollment

40

actual

Study population

Alzheimer’s disease

Key I/E criteria

Alzheimer's diseaseStudy partner/caregiver required

Primary endpoint

Nighttime Total Sleep Time

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT01142258
Org study IDTZD-001

Timeline

Milestones

Study start2010-03 (month precision)
Study first posted2010-06-11estimated
Primary completion2012-04actual (month precision)
Study completion2012-08actual (month precision)
Last update posted2012-10-15estimated

Assets

Drug assets

Study populations

Who this study enrolls

Alzheimer’s disease

Eligibility

Who can enroll

Minimum age55 Years
SexAll
Healthy volunteersNot accepted

Inclusion criteria

Fifty-five years of age or older;
Diagnosis of probable Alzheimer's disease by National Institute of Neurological and Communicative Disorders and Stroke/the Alzheimer's Disease and Related Disorders Association criteria;
Hachinski Ischemia Scale score less than 5
Mini-Mental State Examination score of O to 26
Actigraph evidence of a mean time immobile of less than 7 hours per night based on at least 7 nights of complete actigraph data collected over a single week;
For-week history of sleep disorder behaviors, occurring at least once weekly, as reported by the caregiver using the Neuropsychiatric Inventory (NPI) Nighttime Behavior scale;
Sleep disturbance observed was not present before the diagnosis of AD;
Other co-morbidities, especially delirium, depression, chronic pain and medication use may be present, but do not cooperate in the primary symptoms;
Computed tomography or magnetic resonance imaging since the onset of memory problems showing no more than 1 lacunar infarct in a nonstrategic area and no clinical events suggestive of stroke or other intracranial disease or normal;
Stable medications for 4 weeks prior to the screening visit;
Having a mobile upper extremity to which to attach an actigraph;
Residing with a responsible spouse, family member, or professional caregiver who is present during the night and would agree to assume the role of the principal caregiver for the 3-week protocol;
Ability to ingest oral medication and participate in all scheduled evaluations

Exclusion criteria

Sleep disturbance associated with an acute illness, delirium or psychiatric disease;
Clinically significant movement disorder, such as akinesia, that would affect actigraphic differentiation of sleep and wakefulness
Severe agitation;
Unstable medical condition;
Discontinuation of psychotropic or sleep medications within 2 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 2 alcoholic drinks per day, and only 1 alcoholic drink after 6:00 PM for the duration of the protocol;
Prior use of trazodone for the treatment of sleep disturbances;
Caregiver deemed too unreliable to supervise the wearing of the actigraph, to administer trazodone the proper time, to maintain tbe sleep diary, or to bring the patient to the scheduled visits;

Endpoints (11)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Coverage by outcome category

Behavior / neuropsychiatric
4
Global cognition
3
Other (unclassified)
3
Function / daily living
1

Global cognition

3 endpoints
Secondary/protocol endpoint

change in cognitive function (as measured by the Mini-Mental State Examination)

Time frame:Baseline, 14 days follow-up

Mini-Mental State Examination (MMSE)

change from baseline, improvement

Secondary/protocol endpoint

Change from Baseline in Clinical Dementia Rating

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Secondary/protocol endpoint

Change from Baseline in cognitive function (Digit Symbol Substitution Test)

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Function / daily living

1 endpoint
Secondary/protocol endpoint

Change in activities of daily living (The index of ADL - Katz)

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Behavior / neuropsychiatric

4 endpoints
Primary/protocol endpoint

Change from Baseline in Nighttime Total Sleep Time

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Secondary/protocol endpoint

Change from Baseline in Nighttime Wake After Sleep Onset

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Secondary/protocol endpoint

Change from Baseline in Daytime Total Sleep Time

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Secondary/protocol endpoint

Proportion of subjects who gained at least 30 minutes in total nighttime sleep

Time frame:Baseline, 14 days follow-up

threshold achievement, improvement

Other (unclassified)

3 endpoints
Secondary/protocol endpoint/low confidence

Change from Baseline in Nighttime Number Of Awakenings

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change from Baseline in Number of Daytime Naps

Time frame:Baseline, 14 days follow-up

change from baseline, improvement

Secondary/protocol endpoint/low confidence

Change of baseline in behavioral variables (BAHAVE-AD scale)

Time frame:Baseline, 14 days follow-up

descriptive

Publications (2)

Bibliography

Records linked to this trial through ClinicalTrials.gov references, PubMed NCT search, and curated study seeds. 'Canonical' marks design/result papers; others are registry references or candidates.

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 21, 2026
Endpoint classificationDelfa ADRD endpoint taxonomy
Results tableno registry results posted yet

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 21, 2026 snapshot.