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Phototherapy in Young People With Depression

14 maj 2015 uppdaterad av: Rébecca Robillard, University of Ottawa

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.

Studieöversikt

Status

Okänd

Betingelser

Intervention / Behandling

Studietyp

Interventionell

Inskrivning (Förväntat)

60

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studieorter

  • Australien
    • New South Wales
      • Camperdown, New South Wales, Australien, 2050
        • Upphängd
        • Brain and Mind Research Insitute, The University of Sydney
  • Kanada
    • Ontario
      • Ottawa, Ontario, Kanada, K1Z 7K4
        • Rekrytering
        • Sleep and Depression Research Units, Institute of Mental Health Research, University of Ottawa
        • Kontakt:

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

13 år till 30 år (Barn, Vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

Inclusion Criteria:

  1. Quick Inventory of Depressive Symptomatology score > 6;
  2. First episode of depression before age 25;
  3. Currently engaged in, or about to start treatment for an affective disorder at a mental health clinic.

Exclusion Criteria:

  1. Evidence of other sleep, neurological or primary medical conditions that could explain the current depression and/or contribute to sleep-wake dysfunction;
  2. Other primary psychiatric disorders aside from anxiety disorders;
  3. Significant alcohol or other substance dependence;
  4. 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);
  5. Use of medications that may interact with light to produce a photoallergic reaction;
  6. Eye or skin condition which may interact with bright light exposure;
  7. Regular shift-work within 60-days prior to entry into the study;
  8. Recent transmeridian travel.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Övrig: Phototherapy
Enhet: Phototherapy light-emitting glasses

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.

Andra namn:
  • Re-timer

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Severity of Depression
Tidsram: Between baseline and post (4 weeks) intervention
Change in severity of depression as measured by the Quick Inventory of Depressive Symptomatology (QIDSA17-SR)
Between baseline and post (4 weeks) intervention

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Severity of Depression
Tidsram: Score between baseline and follow up (8 weeks)
Change in depression as measured by the Quick Inventory of Depressive Symptomatology (QIDSA17-SR)
Score between baseline and follow up (8 weeks)
Associations between Changes in Sleep-Wake Profile and Changes in Severity of Depression
Tidsram: Between baseline and post (4 weeks) intervention
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)
Between baseline and post (4 weeks) intervention
Associations between Initial Sleep-Wake Profile and Changes in Severity of Depression
Tidsram: Baseline and post (4 weeks) intervention
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)
Baseline and post (4 weeks) intervention
Subjective Sleep Quality
Tidsram: Between baseline and post (4 weeks) intervention
Change in Leeds Sleep Evaluation Questionnaire score
Between baseline and post (4 weeks) intervention
Fatigue Severity
Tidsram: Between baseline and post (4 weeks) intervention
Change in Fatigue Severity Scale score
Between baseline and post (4 weeks) intervention

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

University of Ottawa

Samarbetspartners

University of Sydney

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 april 2015

Primärt slutförande (Förväntat)

1 april 2017

Studieregistreringsdatum

Först inskickad

14 maj 2015

Först inskickad som uppfyllde QC-kriterierna

14 maj 2015

Första postat (Uppskatta)

19 maj 2015

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

19 maj 2015

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

14 maj 2015

Senast verifierad

1 maj 2015

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • 2015007

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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