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The Effects of Light Therapy on Circadian Rhythms, Sleep, and Mood in Postpartum Depression (NCT02769858)

The proposed study aims to establish the feasibility of light therapy for postpartum depression delivered via Re-Timer, demonstrate its preliminary efficacy, and illuminate relationships between circadian shifts and mood changes using a novel, home-based circadian biomarker assessment paradigm (salivary dim light melatonin onset; DLMO).
  • Device: Light therapy
    Light therapy glasses
    • Re-Timer
Ages eligible for Study
18 Years and older
Genders eligible for Study
Accepts Healthy Volunteers
Inclusion Criteria:
  • Within 6 months postpartum
  • Meet DSM-V diagnostic criteria for MDD
  • Score ≥ 20 on the Structured Interview Guide for the Hamilton Depression Rating Scale-Seasonal Affective Disorder version (SIGH-SAD).
Exclusion Criteria:
  • current diagnosis of bipolar disorder, posttraumatic stress disorder, schizophrenia or psychosis, dissociative disorders, eating disorder, obsessive-compulsive disorder, somatic symptom and related disorders, substance use disorder, panic disorder, agoraphobia per DSM-V
  • past history of mania/hypomania,
  • chronic medical conditions associated with depression (e.g., thyroid conditions)
  • ocular or retinal pathology
  • history of seizures or epilepsy
  • color blindness
  • Lupus
  • currently taking an antibiotic, medication that contains hydrochlorothiazide, or isotretinoin (Accutane).

1 locations

United States (1)
  • University of Michigan
    Not specified
    Ann Arbor, Michigan, United States, 48109
Participant Flow: Overall Study
Light Therapy
Serious Adverse Events
Light Therapy
Other Adverse Events
Light Therapy
31 May, 2015
19 December, 2017
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