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- Klinische proef NCT00520507
An Investigation of the Sleep Architecture and Consequent Cognitive Changes in Olanzapine-Treated Depressed Patients
OBJECTIVES:
Primary Objective:
To assess the objective (polysomnographic) changes in sleep quality before and after introduction of olanzapine in treatment of patients with depression.
Secondary Objectives:
To assess the subjective changes in sleep quality parameters before and at different stages after introduction of olanzapine in treatment, longitudinally, and to correlate these changes with measures of illness severity and changes in cognition.
STUDY DESIGN:
Prospective, double blind, randomized polysomnographic (PSG) study of patients before and after treatment with olanzapine.
PSG recordings will be done three times throughout the study: before starting olanzapine augmentation (baseline), at day 3 to 5 (acute) and day 28 to 31 (chronic). PSG will be completed at patients' homes with a portable PSG. Psychiatric scales, subjective sleep quality scales, and cognition measurements will be completed at each visit.
Studie Overzicht
Toestand
Interventie / Behandeling
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 4
Contacten en locaties
Studie Locaties
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Ontario
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Kingston, Ontario, Canada, K7L 4X3
- Queen's University, Providence Care-Mental Health Services
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- A diagnosis of major depressive disorder or bipolar disorder type 1, 2 or NOS by Diagnostic and Statistical Manual of Mental Disorders- Fourth Edition (DSM-IV)
- Current depressive episode with a HAMD-17 of > 15
- Males or females over age18 years (yrs)
- Inpatients or outpatients
- Female patients of childbearing potential must be using a reliable method of contraception and have a negative urine human chorionic gonadotropin (HCG) test at enrollment
- Able to understand and comply with the requirements of the study
- Provision of written informed consent
Exclusion Criteria:
- Current manic, hypomanic or mixed episode, with YMRS > 12
- Current or past diagnosis of schizophrenia and dementia
- Pregnant women, or women in childbearing age, not willing to use appropriate contraception or women currently nursing
- Patient on any other antipsychotic medication
- Patients who, in the opinion of the investigator, pose an imminent risk of suicide or a danger to self or others
- Known intolerance or lack of response to olanzapine, as judged by the investigator
- Benzodiazepines and all other sleep-aids must be discontinued prior to participation in the study if they have not been at a stable dosage for the 4 weeks previous to entry into the study
- No change to the current medication regime (excluding discontinuation of sleep aids and antipsychotic medications) is allowed 4 weeks prior to the first PSG reading
- Administration of a depot antipsychotic injection within two dosing interval (for the depot) before randomization
- Substance or alcohol dependence at enrolment or in the last three months (except for caffeine or nicotine dependence), as defined by DSM-IV criteria
- Serious, unstable or inadequately treated medical illness as judged by the investigator
- History of epilepsy or uncontrolled seizures
- Involvement in the planning and conduct of the study
- Previous enrolment in the present study
- Participation in another drug trial within 4 weeks prior enrolment into this study or longer in accordance with local requirements
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Verdrievoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: 1
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Olanzapine will be taken once daily at 6pm for 1 month.
Dosing will be titrated up to 5mg and then changed as clinically indicated.
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Placebo-vergelijker: 2
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An inactive form of the treatment will be taken once daily at 6pm for 1 month.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
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Sleep quality as measured by overnight PSG, defined as the change in time spent in slow wave sleep.
Tijdsspanne: 3 days after baseline and 1 month after baseline
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3 days after baseline and 1 month after baseline
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Secundaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
|---|---|
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Sleep measures: time in bed, total sleep time, sleep period time, percentage of sleep stages (stage 1, stage 2, slow wave sleep, REM sleep) of sleep period time, sleep latency to stage 1 and 2, REM latency, number of awakenings.
Tijdsspanne: measure taken at baseline, 3 days after baseline, and 1 month after baseline
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measure taken at baseline, 3 days after baseline, and 1 month after baseline
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Respiratory events (during PSG): obstructive sleep apneas, mixed apneas, central apneas, total apneas, obstructive hypopneas, mixed hypopneas, central hypopneas, total hypopneas, and apneas + hypopneas (AHI), oxygen saturation, and heart rate.
Tijdsspanne: Baseline, 3 days and 1 month after baseline
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Baseline, 3 days and 1 month after baseline
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Subjective sleep experience: visual analogue scale, sleep diary, Epworth Sleep Scale and Pittsburgh Sleep Quality Index.
Tijdsspanne: Baseline, 3 days and 1 month after baseline
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Baseline, 3 days and 1 month after baseline
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Changes in weight and blood glucose will be monitored.
Tijdsspanne: At baseline and 1 month
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At baseline and 1 month
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Cognition: CANTAB scores
Tijdsspanne: Baseline, 3 days and 1 month after baseline
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Baseline, 3 days and 1 month after baseline
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Illness severity: HDRS-17, MADRS, CGI and HamA
Tijdsspanne: Baseline, 3 days and 1 month after baseline
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Baseline, 3 days and 1 month after baseline
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Medewerkers en onderzoekers
Sponsor
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Roumen Milev, M.D., Queen's University, Department of Psychiatry
Publicaties en nuttige links
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Gedragssymptomen
- Psychische aandoening
- Pathologische processen
- Stemmingsstoornissen
- Bipolaire en aanverwante stoornissen
- Depressie
- Depressieve stoornis
- Ziekte
- Bipolaire stoornis
- Fysiologische effecten van medicijnen
- Neurotransmitter agenten
- Moleculaire mechanismen van farmacologische werking
- Depressiva van het centrale zenuwstelsel
- Autonome agenten
- Agenten van het perifere zenuwstelsel
- Anti-emetica
- Gastro-intestinale middelen
- Antipsychotica
- Rustgevende agenten
- Psychotrope medicijnen
- Serotonine-opnameremmers
- Neurotransmitter-opnameremmers
- Membraantransportmodulatoren
- Serotonine agenten
- Olanzapine
Andere studie-ID-nummers
- PSIY-263-07
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