Condition
Placebo - Control clinical trials and research
As of November 12, 2026, Find a Trial lists 3 Placebo - Control clinical trials that are recruiting, at sites in 3 countries (most in United Kingdom (1), United States (1), Mexico (1)). 1 was first registered in the last 30 days. By phase: Phase 4 (1), Phase 2 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 3Clinical trials
- 1New in 30 days
- 3Countries
Newest Placebo - Control clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Morning-strength boost with caffeine or whole-body vibration | Phase 4 | Liverpool, Merseyside | Recruiting | Nov 6, 2026 |
| Using N-acetylcysteine plus simethicone before upper endoscopy to improve mucosal visibility | Phase 2 | Mexicali, Estado de Baja California and 1 other locations | Recruiting | Nov 24, 2025 |
| Exogenous ketone monoester effects on thinking, sensorimotor skills, and driving | — | Birmingham, Alabama | Recruiting | Jul 4, 2025 |
All recruiting trials (3)
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Morning-strength boost with caffeine or whole-body vibration
This study tests whether taking 300 mg caffeine or using whole-body vibration helps healthy, regularly trained adults see improvements in morning strength and thinking skills.
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Using N-acetylcysteine plus simethicone before upper endoscopy to improve mucosal visibility
This trial will test whether taking N-acetylcysteine and simethicone by mouth shortly before an upper endoscopy helps doctors see the lining of the esophagus, stomach, and duodenum better in adults without active GI bleeding.
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Exogenous ketone monoester effects on thinking, sensorimotor skills, and driving
This test will try a single dose of a ketone monoester supplement versus a placebo to see if it improves thinking, sensorimotor skills, and driving performance in adults 19–55 who are obese and sedentary, lean and sedentary, or lean and regularly active.
Related topics
Quick answers
How many Placebo - Control clinical trials are recruiting right now?
3, as of November 12, 2026. 1 of them was first registered in the last 30 days. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 3 countries. The most sites are in United Kingdom (1 trial), United States (1 trial), Mexico (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 4: 1, Phase 2: 1. Trials with no phase listed are usually device, behavioural or observational studies.
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.