Phototherapy in Young People With Depression
Phototherapy in Young People With Depression; Investigating Associations Between Changes in Actigraphic Sleep-wake Profile and Depressive Symptoms
Bright light therapy is an established treatment pathway for sleep and circadian disorders and evidence suggests that it has antidepressant effects. The underlying mechanisms of these antidepressant effects are not fully understood and results from previous studies are somewhat variable. One of the important limitations of previous depression studies has been the heterogeneity of samples in which bright light therapy has been administered.
The main aim of this study is to evaluate whether the antidepressant effects of phototherapy in young persons with depression are modulated by changes in the sleep-wake cycle. We hypothesize that more pronounce initial sleep-phase delay will predict better antidepressant response to phototherapy and that the magnitude of changes in depressive symptoms across the course of the intervention will correlate with changes in the sleep-wake cycle.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Forventet)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Rébecca Robillard, PhD
- Telefonnummer: 6279 +1 613 722 6521
- E-mail: reb.robillard@gmail.com
Studiesteder
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New South Wales
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Camperdown, New South Wales, Australien, 2050
- Suspenderet
- Brain and Mind Research Insitute, The University of Sydney
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Ontario
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Ottawa, Ontario, Canada, K1Z 7K4
- Rekruttering
- Sleep and Depression Research Units, Institute of Mental Health Research, University of Ottawa
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Kontakt:
- Rébecca Robillard, PhD
- Telefonnummer: 6279 +1 613 722 6521
- E-mail: reb.robillard@gmail.com
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-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Quick Inventory of Depressive Symptomatology score > 6;
- First episode of depression before age 25;
- Currently engaged in, or about to start treatment for an affective disorder at a mental health clinic.
Exclusion Criteria:
- Evidence of other sleep, neurological or primary medical conditions that could explain the current depression and/or contribute to sleep-wake dysfunction;
- Other primary psychiatric disorders aside from anxiety disorders;
- Significant alcohol or other substance dependence;
- Use of medications that affect sleep, circadian rhythms, or alertness within the past month (participants stabilized on an antidepressant medication, stimulants, lithium or melatoninergic agents will not be excluded from the study);
- Use of medications that may interact with light to produce a photoallergic reaction;
- Eye or skin condition which may interact with bright light exposure;
- Regular shift-work within 60-days prior to entry into the study;
- Recent transmeridian travel.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: N/A
- Interventionel model: Enkelt gruppeopgave
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Andet: Phototherapy
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The intervention consists of four weeks of bright light exposure with light-emitting glasses (blue-green 500 nm dominant wavelength; 506 Lux lm/m^2) upon awakening and progressive shift to earlier wake-up times. Participants are encouraged to complete the light exposure sessions for 60 min each day. Participants are also instructed to progressively shift their schedule 15 min earlier every day. This shift continues until the end of the four weeks of the intervention, or stops if the target wake-up time of 7:30am is reached (in which case, participants keep a stable wake-up and light session schedule at 7.30am for the remainder of the intervention). If participants already wake-up before 7.30am at study entry, they do the light exposure sessions upon awakening across the four weeks of the intervention. During the intervention, participants are asked to note down the time of each light exposure session in a diary. Adherence is also monitored and promoted through weekly phone calls.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Severity of Depression
Tidsramme: Between baseline and post (4 weeks) intervention
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Change in severity of depression as measured by the Quick Inventory of Depressive Symptomatology (QIDSA17-SR)
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Between baseline and post (4 weeks) intervention
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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Severity of Depression
Tidsramme: Score between baseline and follow up (8 weeks)
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Change in depression as measured by the Quick Inventory of Depressive Symptomatology (QIDSA17-SR)
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Score between baseline and follow up (8 weeks)
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Associations between Changes in Sleep-Wake Profile and Changes in Severity of Depression
Tidsramme: Between baseline and post (4 weeks) intervention
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Associations between changes in sleep-wake profile (mean sleep onset time, offset time efficiency and acrophase), as measured by actigraphy, and change in depression severity as measured by the Quick Inventory of Depressive Symptomatology (QIDSA17-SR)
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Between baseline and post (4 weeks) intervention
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Associations between Initial Sleep-Wake Profile and Changes in Severity of Depression
Tidsramme: Baseline and post (4 weeks) intervention
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Associations between the initial sleep-wake profile (mean sleep onset time, offset time efficiency and acrophase), as measured by actigraphy, and change in depression severity as measured by the Quick Inventory of Depressive Symptomatology (QIDSA17-SR)
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Baseline and post (4 weeks) intervention
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Subjective Sleep Quality
Tidsramme: Between baseline and post (4 weeks) intervention
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Change in Leeds Sleep Evaluation Questionnaire score
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Between baseline and post (4 weeks) intervention
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Fatigue Severity
Tidsramme: Between baseline and post (4 weeks) intervention
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Change in Fatigue Severity Scale score
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Between baseline and post (4 weeks) intervention
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Forventet)
Primær færdiggørelse
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 2015007
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