Clinical trials
Placebo - Control clinical trials
Below are recruiting placebo - control clinical trials, each written for real people, not researchers. We’re tracking 3,949 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05132660Enrolling by invitationEarly Phase 1
Early eye treatment study for diabetic retinopathy
This early-phase study tests a treatment aimed at preventing or slowing early diabetic eye disease in people with mild, early changes. You may be considered if your diabetes is moderately controlled and your eye tests show early warning signs.
Decatur, GeorgiaAges 30–80 - NCT05127954Enrolling by invitationPhase 3
Long-term migraine tablet study for kids and teens ages 6–17
This study follows kids and teens who already took part in an earlier migraine medication study to check long-term safety and comfort with oral ubrogepant tablets. It may help families understand whether this migraine tablet is safe to keep using over time.
Huntsville, AlabamaAges 6–17 - NCT05097365Enrolling by invitation
Testing a methyl-donor supplement to study lupus metabolism
This study looks at whether a “methyl-donor” nutrient supplement changes metabolism (methylation) in people with lupus who are also in the childbearing age range and have low-to-moderate disease activity. It may help researchers understand why lupus acts differently in some people and how diet-related pathways could affect symptoms.
São PauloAges 18–45 - NCT05095701Enrolling by invitationPhase 4
Study tracks lasting protection from a live chickenpox vaccine
This trial follows people who previously took a chickenpox (varicella) vaccine to see how long their immune protection lasts. It may help explain who stays protected over time and for how long.
Xuchang, HenanAges 1–17 - NCT04534556Enrolling by invitation
Wireless nerve stimulation to improve stroke recovery
This study tests a wireless nerve stimulation device placed near the vagus nerve to help people recover after a stroke. It focuses on people with specific remaining arm/hand movement and recovery levels at least 12 months after stroke.
Dallas, TexasAges 22–79 - NCT04509102Enrolling by invitationEarly Phase 1
Test added stimulant medicine with rTMS for depression
This early study tests whether adding a stimulant medicine to repetitive TMS (a non-drug brain stimulation) can improve depression. It is aimed at people whose depression has not improved after at least two antidepressant tries.
Los Angeles, CaliforniaAges 18–65 - NCT04326426Enrolling by invitationPhase 3
Study of tradipitant for severe or critical COVID-19
This trial tests whether tradipitant can improve outcomes for adults with severe or critical COVID-19, including pneumonia and low oxygen. It may help patients whose lungs are significantly affected and who need careful hospital-level care.
New York, New YorkAges 18–90 - NCT04104659Enrolling by invitation
Tau PET scan study to map brain changes in Alzheimer’s
This study tests a PET scan “tracer” medicine called [18F]MK-6240 to see how tau protein changes show up in the brain. It may help researchers measure disease-related brain changes in people with normal thinking or mild dementia.
St Louis, MissouriAges 18 years+ - NCT03736538Enrolling by invitationPhase 1
Nitrous oxide for suicidal thoughts in depression
This Phase 1 study tests whether breathing nitrous oxide can safely reduce suicidal thoughts in adults with major depression. It may help people whose depression is causing moderate to severe suicidal thinking, by studying a fast-acting treatment approach.
St Louis, MissouriAges 18–65 - NCT03675724Enrolling by invitationPhase 2
Fisetin for frailty and inflammation in older adults
This trial studies whether fisetin, a supplement-like drug, can reduce frailty and inflammation in people age 70 and older. It may help improve health measures related to aging, but you must meet several safety and medication rules to join.
Rochester, MinnesotaAges 70 years+ - NCT03338387Enrolling by invitationPhase 2
Test effects of gut hormones in bulimia
This trial studies how growth-related and gut hormones affect ghrelin, a hunger-related hormone, in people with bulimia. It may help researchers understand the body changes behind bulimia and how hormones and appetite signals work.
Ages 18–30 - NCT03255408RecruitingPhase 1/Phase 2
Sleep study testing breathing and blood flow in healthy adults
This study looks at how your brain blood flow and breathing change during sleep under normal oxygen and reduced oxygen. It will only include healthy adults so researchers can learn what “intermittent hypoxia” does to the body in people without medical problems.
Calgary, AlbertaAges 18–45 - NCT03234296Enrolling by invitation
Antibiotics versus placebo for uncomplicated appendicitis
This trial tests whether taking antibiotics alone can treat acute uncomplicated appendicitis, compared with a placebo. If antibiotics work, it may help some people avoid surgery or reduce treatment intensity.
TurkuAges 18–60
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Common questions
- Are there clinical trials for placebo - control?
- Yes. Clin2 currently lists 3,949 recruiting placebo - control studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a placebo - control trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a placebo - control trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.