U.S., May 21 -- ClinicalTrials.gov registry received information related to the study (NCT07599124) titled 'Effectiveness of Light Therapy Across Seasons' on May 12.
Brief Summary: This study investigates whether the antidepressant effects of bright light therapy (BLT) differ between the spring/summer season and the autumn/winter season in adults with depressive disorders. While BLT is an established treatment for seasonal affective disorder, increasing evidence suggests it may also be effective for non-seasonal depression. However, it remains unclear whether its effectiveness depends on seasonal variation in natural daylight exposure.
In this prospective study conducted in a routine clinical care setting, patients referred for depressive...