A Study to Evaluate Sleep Quality in Patients With Mild to Moderate Alzheimer's Disease

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01478204
Recruitment Status : Completed
First Posted : November 23, 2011
Last Update Posted : October 31, 2012
Information provided by (Responsible Party):
Janssen-Cilag, S.A.

Brief Summary:
The purpose of this study is to evaluate sleep quality in patients with mild to moderate Alzheimer's disease treated with anticholinesterase drugs in clinical practice.

Condition or disease
Alzheimer's Disease

Detailed Description:
This is an epidemiological (the study of health-related states or events in specific populations) study of patients with mild to moderate Alzheimer's who have been treated previously with anticholinesterase drugs (class of drugs that act in the central nervous system) up to a maximum of fifteen days. The data for each patient will be recorded on two occasions; first at a baseline visit and then at a follow-up visit at 3 months. At the baseline visit, after the patient or his/her legal representative has given written informed consent, each participating neurologist will use the study questionnaire to collect patient sociodemographic characteristics (characteristics such as age, years of education, race, sex, religion, birthplace, income, occupation, geographic location, among others), medical history and diagnosis of Alzheimer's disease. The neurologist will also record treatment for Alzheimer's disease and concomitant hypnotic medications (simultaneous use of medications that induce sleep) and evaluate the patient using two scales: the Pittsburgh Sleep Quality Index (PSQI) to record sleep disturbances and the Epworth Sleepiness Scale to determine the level of daytime sleepiness. Alzheimer treatment and concomitant hypnotic medications will be recorded again at the follow-up visit. Patient sleep quality using the PSQI and daytime sleepiness using the Epworth scale will also be evaluated again at this visit.

Study Type : Observational
Actual Enrollment : 925 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: An Observational Epidemiological Study on Evaluation of Sleep Quality in Patients With Mild to Moderate Alzheimer's Disease in Clinical Practice
Study Start Date : June 2008
Actual Primary Completion Date : June 2009
Actual Study Completion Date : July 2009

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Primary Outcome Measures :
  1. Sleep disturbances measures by Scores on the Pittsburgh Sleep Quality Index (PSQI) Scale [ Time Frame: Up to 3 months ]
    The PSQI consists of 19 self-rated questions which assesses sleep quality and disturbances over 1-month time interval. The 19 questions assess a wide variety of factors relating to sleep quality, including estimates of sleep duration and the frequency and severity of specific sleep-related problems. These 19 items are grouped into seven components scores, each weighted equally on a 0-3 scale. The seven components scores are then summed to yield a global PSQI score, which has a range of 0-21; higher scores indicate worse sleep quality.

Secondary Outcome Measures :
  1. The Level of Daytime Sleepiness determined by the Scores on the Epworth Sleepiness Scale [ Time Frame: Up to 3 months ]
    The Epworth Sleepiness Scale measures how likely, from 0 (would never take a nap) to 3 (high change of dozing), the patient is to doze off or fall asleep in common everyday situations. The scores for a total of eight questions are added together to obtain a single number. A number in the 0-9 range is considered to be normal while a number in the 10-24 range indicates that expert medical advice should be sought.

Information from the National Library of Medicine

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Ages Eligible for Study:   60 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients attending the neurology clinic of participating centers throughout Spain who meet eligibility criteria.

Inclusion Criteria:

  • Patients with a recent diagnosis of possible or probable Alzheimer's disease (National Institute of Neurological and Communicative Disorders and Stroke and the Alzheimer's Disease and Related Disorders Association (NINCDS-ADRDA criteria) within a maximum of 60 days before the baseline visit.
  • Patients with mild or moderate Alzheimer's disease, defined by a Mini-Mental State Exam (MMSE) score between 11 and 25.
  • Patients whose caregivers are sufficiently informed of the patients' state and if possible live with the patient.
  • Patients who are capable of attending a second clinic visit with their accompanying person 3 months later, based on the clinical practice of the investigator.
  • Patients and/or legal representatives who have given and signed written informed consent.

Exclusion Criteria:

  • Patients who have psychotic manifestations.
  • Patients who have clinically significant sleep disorder (sleep apnea syndrome, restless leg syndrome).
  • Patients treated with memantine.
  • Patients and/or legal representatives who refuse to give written informed consent to participate in the study.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01478204

Sponsors and Collaborators
Janssen-Cilag, S.A.
Study Director: Janssen-Cilag S.A., Spain Clinical Trial Janssen-Cilag, S.A.

Responsible Party: Janssen-Cilag, S.A. Identifier: NCT01478204     History of Changes
Other Study ID Numbers: CR017509
GALALZ4037 ( Other Identifier: Janssen-Cilag S.A., Spain )
First Posted: November 23, 2011    Key Record Dates
Last Update Posted: October 31, 2012
Last Verified: October 2012

Keywords provided by Janssen-Cilag, S.A.:
Alzheimer's disease
Sleep quality
Anticholinesterase drugs

Additional relevant MeSH terms:
Alzheimer Disease
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Neurodegenerative Diseases
Neurocognitive Disorders
Mental Disorders