Seasonal Affective Disorder clinical trials
The registry lists 31 studies for Seasonal Affective Disorder across 8 countries. 2 are recruiting or about to start. 29 of them are mainly about Seasonal Affective Disorder (how this is decided). Per ClinicalTrials.gov, last updated 2026-09-17.
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Who runs them
University of Oulu (3) · GlaxoSmithKline (3) · University of Vermont (2) · Yale University (2) · National Institute of Mental Health (NIMH) (2) · University Medical Center Groningen (2) · Assistance Publique - Hôpitaux de Paris (1) · Philips Respironics (1)
What is being tested here
Drugs under test in Seasonal Affective Disorder studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted
Who these studies take
Of the 1 Seasonal Affective Disorder studies recruiting now, 1 (100%) set no upper age limit and 0 (0%) stop at 75 or younger. 1 (100%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 0 (0%) take healthy volunteers.
| Age | Women | Men |
|---|---|---|
| 10 | 1 (100%) | 1 (100%) |
| 18 | 1 (100%) | 1 (100%) |
| 30 | 1 (100%) | 1 (100%) |
| 40 | 1 (100%) | 1 (100%) |
| 50 | 1 (100%) | 1 (100%) |
| 65 | 1 (100%) | 1 (100%) |
| 75 | 1 (100%) | 1 (100%) |
| 85 | 1 (100%) | 1 (100%) |
Across all 31 studies, recruiting or not: 48% stop at 75 or younger and 45% at 65; 6% take children; 0% are for women only and 0% for men only; 32% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.
Studies
Recruiting first, then most recently updated. Showing 31 of 31. search them.
- Cohort of Patients Suffering From Major Depressive Episode With Evaluation of Sleep, Circadian Rhythms and Psychiatric DisordersRecruitingNCT058669911 country
- Virtual Reality Digital Therapeutics for Seasonal Affective DisorderNot yet recruitingNCT07161570Not applicable
- Infrared Photomodulation Therapy for Seasonal Affective DisorderWithdrawnNCT04251000Not applicable1 country
- Optimizing Long-Term Outcomes for Winter Depression With CBT-SAD and Light TherapyCompletedNCT03691792Not applicable1 country
- Vitamin D Supplementation and Effects on Mood in Emergency Medicine ResidentsCompletedNCT03739671Not applicable1 country
- Health Consequences of Wintering in the French Southern and Antarctic TerritoriesCompletedNCT04768621Not applicable1 country
- Cognitive-behavioral Therapy vs. Light Therapy for Preventing SAD RecurrenceCompletedNCT01714050Not applicable1 country
- Investigation of Seasonal Variations of Brain Structure and Connectivity in SADCompletedNCT03313674Not applicable1 country
- Seasonal Affective Disorder and Visual ImpairmentCompletedNCT03403959Not applicable1 country
- Predicting Effectiveness of Light Treatment for Winter Seasonal Affective DisorderCompletedNCT00742365
- 30-Minute Light Exposure for the Treatment of Seasonal Affective DisorderCompletedNCT01462305Not applicable1 country
- Influence of Light Exposure on Cerebral MAO-A in Seasonal Affective Disorder and Healthy Controls Measured by PETCompletedNCT02582398Not applicable1 country
- Seasonal Affective Depression (SAD) StudyCompletedNCT00069459Phase 11 country
- Clinical Trial of Propranolol for Seasonal Affective DisorderCompletedNCT00016666Phase 21 country
- Prevention of Seasonal Affective DisorderCompletedNCT00046241Phase 32 countries
- Research Study of Treatment for Winter Depression With Different Colors of LightCompletedNCT00269633Phase 21 country
- Study of Genes in Relation to Seasonal Affective Disorder and Major Depressive DisorderCompletedNCT012928891 country
- Prevention of Seasonal Affective DisorderCompletedNCT00046449Phase 32 countries
- Clinical Trials of Three Non-Drug Treatments for Winter Depression (SAD)CompletedNCT00006517Not applicable1 country
- Cognitive Behavioral Therapy for the Treatment of Seasonal Affective Disorder (SAD)CompletedNCT00076245Phase 11 country
- Transcranial Bright Light Therapy in Seasonal Affective Disorder (SAD)CompletedNCT01784705Not applicable1 country
- A Trial of Negative Ion Generation Versus Light-Emitting Diode Phototherapy for Seasonal Affective Disorder (SAD)CompletedNCT00809523Phase 2/33 countries
- Environmental Treatment for Seasonal Affective Disorder (SAD)CompletedNCT00139997Not applicable3 countries
- The Role of Vitamin D Supplementation on Well Being and Symptoms of Depression During the Winter Season in Health Service StaffCompletedNCT01462058Phase 41 country
- Low Intensity 'Blue Light' Treatment of Seasonal Affective DisorderCompletedNCT01149135Not applicable
- Bright Light Therapy in Seasonal Affective Disorder (SAD)CompletedNCT01293409Not applicable1 country
- Blue Enriched Versus Standard Light Treatment for Seasonal Affective Disorder(SAD)CompletedNCT01048294Not applicable1 country
- Bright Light Therapy in Seasonal Affective Disorder (SAD)Status unknownNCT01030276Not applicable1 country
- Ramelteon in the Treatment of Sleep and Mood in Patients With Seasonal Affective DisorderCompletedNCT00502320Phase 41 country
- Effects of Season on Melatonin Secretion in Healthy Men and Women and Patients With Seasonal Affective DisorderCompletedNCT000014851 country
- Light-Emitting Diode (LED) Light for Seasonal Affective Disorder (SAD) TreatmentStatus unknownNCT00114322Not applicable1 country