Tundra Space

Tundra Space

Clinical Research Directory

Browse clinical research sites, groups, and studies.

4 clinical studies listed.

Filters:

Exposure to Man-made Visible Light

Tundra lists 4 Exposure to Man-made Visible Light clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

This data is also available as a public JSON API. AI systems and LLMs are encouraged to use it for structured queries.

NOT YET RECRUITING

NCT02919189

Systematically Assessing Effects of Colored Light on Humans With a Multi-modal Approach (Substudy 5 of 7)

NOTE: This is the fifth of in total 7 sub-studies related to the Ethics Committee of the Canton of Bern Ref. No. KEK-BE 2016-00674. This sub-study includes 50 participants and 8 arms, in total 350 participants will be assessed in all 7 sub-studies. General study information: This is a randomized, cross-over, quantitative study, which investigates physiological variables, mood, and affect of healthy participants in response to colored light exposure. The Participants take part in 5-8 arms and are exposed to colored light only, or are additionally asked to solve cognitive tasks during the colored light exposure. Primary aim is to measure the change in several physiological variables, mood, and affect during colored light exposure of 15 or 45 minutes. The risk for the participants is negligible and comparable to the risk during daily life.

Gender: All

Ages: 18 Years - 50 Years

Updated: 2026-01-14

Exposure to Man-made Visible Light
NOT YET RECRUITING

NCT02919163

Systematically Assessing Effects of Colored Light on Humans With a Multi-modal Approach (Substudy 6 of 7)

NOTE: This is the sixth of in total 7 sub-studies related to the Ethics Committee of the Canton of Bern Ref. No. KEK-BE 2016-00674. This sub-study includes 50 participants and 8 arms, in total 350 participants will be assessed in all 7 sub-studies. General study information: This is a randomized, cross-over, quantitative study, which investigates physiological variables, mood, and affect of healthy participants in response to colored light exposure. The Participants take part in 5-8 arms and are exposed to colored light only, or are additionally asked to solve cognitive tasks during the colored light exposure. Primary aim is to measure the change in several physiological variables, mood, and affect during colored light exposure of 15 or 45 minutes. The risk for the participants is negligible and comparable to the risk during daily life.

Gender: All

Ages: 18 Years - 50 Years

Updated: 2026-01-14

Exposure to Man-made Visible Light
ACTIVE NOT RECRUITING

NCT02919137

Systematically Assessing Effects of Colored Light on Humans With a Multi-modal Approach (Substudy 7 of 7)

NOTE: This is the seventh of in total 7 sub-studies related to the Ethics Committee of the Canton of Bern Ref. No. KEK-BE 2016-00674. This sub-study includes 50 participants and 8 arms, in total 350 participants will be assessed in all 7 sub-studies. General study information: This is a randomized, cross-over, quantitative study, which investigates physiological variables, mood, and affect of healthy participants in response to colored light exposure. The Participants take part in 5-8 arms and are exposed to colored light only, or are additionally asked to solve cognitive tasks during the colored light exposure. Primary aim is to measure the change in several physiological variables, mood, and affect during colored light exposure of 15 or 45 minutes. The risk for the participants is negligible and comparable to the risk during daily life.

Gender: All

Ages: 18 Years - 50 Years

Updated: 2025-07-29

Exposure to Man-made Visible Light
RECRUITING

NCT02370199

Peripheral Blood Flow Responses to Electromagnetic Energy

This study evaluates 670 nm energy in the form of red light to stimulate blood flow changes in healthy adults. All participants will receive red light to their leg. They will also receive a continuous infusion of Definity (octafluoropropane) ultrasound contrast.

Gender: All

Ages: 18 Years - 59 Years

Updated: 2025-04-01

1 state

Exposure to Man-made Visible Light