A Trial of Negative Ion Generation Versus Light-Emitting Diode Phototherapy for Seasonal Affective Disorder (SAD)
Public ClinicalTrials.gov record NCT00809523. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Multicenter, Randomized Controlled Trial of Negative Ion Generation Versus Light-Emitting Diode Phototherapy for Seasonal Affective Disorder (SAD)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This is a randomized, controlled clinical trial of inactivated negative ion generation or light-emitting photodiode therapy for Seasonal Affective Disorder (SAD, winter depression), for subjects with a DSM IV diagnosis of Major Depression, with Seasonal Pattern, Winter type, to examine efficacy of treatments for this condition. The trial has a 1 week baseline phase and a 4 week treatment phase.
Study identification
- NCT ID
- NCT00809523
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2, Phase 3
- Enrollment
- 106 participants
Conditions and interventions
Conditions
Interventions
Device
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 30, 2008
- Primary completion
- Mar 31, 2010
- Completion
- Mar 31, 2010
- Last update posted
- Mar 5, 2013
2008 – 2010
United States locations
- U.S. sites
- 3
- U.S. states
- 3
- U.S. cities
- 3
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Yale University School of Medicine | New Haven | Connecticut | 06504 | — |
| Capital Clinical Research Associates | Rockville | Maryland | 20852 | — |
| McLean Hospital/Harvard | Belmont | Massachusetts | 02478 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 5 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00809523, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Mar 5, 2013 · Synced Sep 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00809523 live on ClinicalTrials.gov.