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Physiological Responses clinical trials and research
As of November 12, 2026, Find a Trial lists 3 Physiological Responses clinical trials that are recruiting, at sites in 2 countries (most in Belgium (2), Singapore (1)). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 3Clinical trials
- 2Countries
Newest Physiological Responses clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Does Caffeine or Alcohol Change Pupil Reactions? A Test in Healthy Adults | — | Singapore | Recruiting | Jun 4, 2026 |
| How short power-training sessions affect muscle power and movement in older adults. | — | Diepenbeek, Flanders | Recruiting | Apr 13, 2026 |
| How spicy compounds affect blood flow in the feet | — | Leuven | Recruiting | Nov 19, 2025 |
All recruiting trials (3)
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Does Caffeine or Alcohol Change Pupil Reactions? A Test in Healthy Adults
This study tests how caffeine and alcohol affect pupil responses and eye movements, and whether these changes can indicate recent intake, in adults aged 30-50.
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How short power-training sessions affect muscle power and movement in older adults.
This test will try three leg-press power-training sessions with different fatigue levels to see which approach is safest and most helpful for adults aged 65–85.
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How spicy compounds affect blood flow in the feet
This research will see if applying cinnamaldehyde, AITC, or capsaicin to the feet of healthy adults changes skin blood flow and whether those responses are consistent across doses, between feet, and across visits.
Related topics
Quick answers
How many Physiological Responses clinical trials are recruiting right now?
3, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in Belgium (2 trials), Singapore (1 trial). Each study page lists its sites and which ones are recruiting.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.