Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,223 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05461157Enrolling by invitation
Silicone ointment before head or neck surgery to improve healing
This trial studies whether applying a silicone ointment before and around the time of planned head or neck surgery can improve how your wound heals after surgery. It may help reduce problems like poor scar healing, but you can only join if you meet specific medical and safety requirements.
New Haven, ConnecticutAges 18 years+ - NCT05374291Enrolling by invitationPhase 3
Dapagliflozin trial for kidney and heart outcomes in severe CKD
This study tests whether dapagliflozin can improve kidney and heart-related outcomes in people with severe chronic kidney disease (CKD). You would take the study medicine (or a comparison treatment) and be followed to see how your kidneys and heart do over time.
Canberra, Australian Capital TeritoryAges 18 years+ - NCT05285878Enrolling by invitationPhase 2
Fingolimod to protect kidney function after kidney transplant
This trial tests whether fingolimod can reduce kidney scarring and preserve kidney function after a new kidney transplant. It focuses on people who are in the early period after transplant who may be at risk for scarring in the kidney.
Houston, TexasAges 18–65 - NCT05247255Enrolling by invitationEarly Phase 1
Nerve block during hip replacement surgery
This early-stage study tests whether a specific nerve block to numb the lower back area can make total hip replacement surgery more comfortable. It looks at patients who are having planned (elective) hip replacement and whether the nerve block is safe and works well.
Santa Monica, CaliforniaAges 18 years+ - 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 - 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 - NCT05015686Enrolling by invitationPhase 3
Live chickenpox vaccine safety study for healthy teens and adults
This trial tests how safe and how well a live, weakened chickenpox (varicella) vaccine works in healthy people age 13 and older. If you qualify, you may receive the study vaccine and be monitored for side effects and immune response.
Shangqiu, HenanAges 13 years+ - 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 - 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+ - NCT03370224Enrolling by invitation
Story memory training for older adults
This study tests a memory-skills training approach (the Modified Story Memory Technique) to help older adults with aging-related memory changes. You may be asked to do memory exercises, and some people may also complete an optional brain MRI scan.
East Hanover, New JerseyAges 65 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
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,223 recruiting placebo 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 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 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.