Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,245 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05842330RecruitingPhase 3
Testing ADHD treatment benefits for people in custody
This Phase 3 study tests whether treating attention-deficit/hyperactivity disorder (ADHD) helps people who are incarcerated. You might be eligible if you meet ADHD diagnosis requirements, can consent, and are able to take ADHD medicine safely.
Geneva, Canton of GenevaAges 18–65 - NCT05842382RecruitingPhase 2
High-dose IV vitamin C for severe pneumonia
This trial tests whether high-dose vitamin C given through an IV can improve outcomes in people with severe pneumonia. It may help your body fight infection and reduce complications, but it also has several safety checks.
Alor Star, KedahAges 18 years+ - NCT05842174RecruitingPhase 1/Phase 2
Checking a new treatment approach for liver cancer needing TACE
This early-stage trial studies a new strategy for hepatocellular carcinoma (a type of liver cancer) in people who are planned to receive TACE, a procedure that delivers treatment through the liver’s blood supply. It aims to test whether targeting a specific cell survival process can improve how well the treatment works and is tolerated.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05843786RecruitingPhase 3
Interferon gamma for ventilator pneumonia in ICU
This trial tests whether a medicine called interferon gamma can improve outcomes in adults with a first episode of pneumonia that develops after being on a ventilator in the ICU. It is designed for specific ICU timing, infection severity, and immune marker levels, and it compares treatment on top of standard care.
LimogesAges 18 years+ - NCT05844501RecruitingPhase 4
Ondansetron before heart ablation for atrial fibrillation
This trial tests whether ondansetron can help people with atrial fibrillation (an abnormal heart rhythm) around the time of elective catheter ablation. It may improve the safety or effectiveness of the procedure by targeting a pathway involved in heart rhythm events.
Indianapolis, IndianaAges 18–100 - NCT05846399RecruitingPhase 4
Test antibiotic prevention after a cat bite to the hand
This study tests whether taking a specific antibiotic right after a cat bite to the hand or forearm can help prevent an infection. You may be eligible if you arrive within 24 hours and don’t already have signs of infection.
Columbia, MissouriAges 18 years+ - NCT05849038RecruitingPhase 2
Treating inflammation to improve depression in HIV
This Phase 2 study looks at whether lowering inflammation can help improve depression symptoms in adults living with HIV. You may be able to join if your HIV is well controlled and you are currently experiencing major depression (or a certain type of bipolar depression).
Atlanta, GeorgiaAges 18–65 - NCT06075264RecruitingPhase 2
Artesunate ointment for high-grade vulvar lesions
This trial tests an artesunate ointment for women with high-grade vulvar lesions caused by HPV. It aims to see if the ointment can help the lesions heal or disappear without needing surgery.
Fort Myers, FloridaAges 18 years+ - NCT05851014RecruitingPhase 3
GB491 plus letrozole for HR+ HER2- advanced breast cancer
This Phase 3 study tests whether GB491 used together with letrozole works better for hormone receptor–positive and HER2-negative advanced breast cancer. You may be eligible if you have not had certain prior cancer treatments and your health tests are within safe limits.
Bengbu, AnhuiAges 18–75 - NCT05852704RecruitingPhase 3
Dapagliflozin to prevent irregular heart rhythm after bypass surgery
This trial looks at whether dapagliflozin (a diabetes medicine that helps the kidneys and heart) can lower the chance of atrial fibrillation, an irregular heart rhythm, after coronary artery bypass (CABG) surgery. If you’re scheduled for planned bypass surgery, this study may help reduce post-operative rhythm problems.
BrnoAges 18 years+ - NCT05853952Recruiting
Non-invasive brain stimulation to aid stroke rehab
This trial tests whether a non-invasive brain stimulation device used alongside stroke rehabilitation can improve recovery after stroke. It may help people regain function during a phase when stroke effects have stabilized but recovery is still possible.
Las Palmas de Gran Canaria, Las PalmasAges 18 years+ - NCT05855369RecruitingPhase 2/Phase 3
Smell training plus brain stimulation for long COVID smell loss
This study tests whether a combination of smell training and a type of nerve stimulation can improve persistent smell problems after COVID. It is meant for people who had normal smell before COVID and still struggle with smell changes months later.
Charleston, South CarolinaAges 18–65 - NCT05858437Recruiting
Testing propionic acid to improve immune function in children with kidney failure
This study tests whether propionic acid can help the immune system work differently in children with advanced chronic kidney disease who receive regular dialysis. It may help regulate immune cells, aiming for better immune function while keeping you medically stable.
BerlinAges 12–20 - NCT05860465RecruitingPhase 2/Phase 3
Tested blood cancer medicine with hormone therapy for breast cancer
This trial studies SPH4336 given together with standard hormone (endocrine) therapy for breast cancer that has spread or cannot be treated with surgery. It aims to see whether the combination is safer and more effective than hormone therapy alone.
Guangzhou, GuangdongAges 18–75 - NCT05860270RecruitingPhase 4
Vitamin D by mouth to prevent peritoneal dialysis peritonitis
This trial tests whether taking vitamin D by mouth can lower the risk of peritonitis (a painful infection of the lining around the abdomen) in people on peritoneal dialysis. You might benefit if your vitamin D level is low and you meet other safety requirements.
Beijing, Beijing MunicipalityAges 19 years+ - NCT05860699RecruitingPhase 2
Cannabidiol added during inpatient alcohol withdrawal
This trial tests whether cannabidiol (CBD) given during an inpatient alcohol detox helps people stay off alcohol afterward. You would be compared with standard care to see if CBD improves recovery during and after withdrawal.
Créteil, Albert ChenevierAges 18–75 - NCT05864521Recruiting
Beetroot juice to improve sleep
This trial studies whether drinking beetroot juice can help improve sleep. It may be most helpful if you are generally healthy and have trouble sleeping under the study’s conditions.
Rochester, MinnesotaAges 18–80 - NCT05867849RecruitingPhase 3
Cannabidiol treatment for bipolar depression symptoms
This trial tests whether cannabidiol (CBD) can reduce symptoms of bipolar depression. You may be eligible if you have bipolar I or II and a current depressive episode while staying on approved mood-stabilizing or antipsychotic medication.
Vancouver, British ColumbiaAges 19–70 - NCT05868837RecruitingPhase 3
Rituximab for myasthenia gravis in people with moderate symptoms
This Phase 3 trial tests rituximab (an immune system medicine) to see if it improves myasthenia gravis (MG) symptoms and function. It’s for adults with confirmed MG and moderate-to-severe impact on daily activities despite current care.
RomaAges 18 years+ - NCT05868733RecruitingPhase 2
Lassa fever vaccine study for people in West Africa
This trial tests an investigational vaccine to prevent Lassa fever, a serious illness found in parts of West Africa. People in different age groups will get the vaccine or a placebo and be followed to see if it’s safe and helps the immune system respond.
AccraAges 1.5 years–70 years - NCT05873881RecruitingPhase 3
Colchicine and vitamin B1 for ischemic heart failure
This study tests whether colchicine and thiamine (vitamin B1) can improve outcomes in people with heart failure caused by blocked or narrowed heart arteries. It’s mainly for people with moderate-to-severe symptoms and reduced heart pumping ability.
Hamilton, OntarioAges 45 years+ - NCT05874258Recruiting
Electric brain stimulation plus vision training for glaucoma
This trial tests whether combining a short vision learning program with non-invasive electrical stimulation to the brain can improve vision in people with open-angle or normal-tension glaucoma. It may help by training the visual system while stimulating brain pathways to support vision.
Hong KongAges 18–80 - NCT05876312RecruitingPhase 1/Phase 2
Study drug ADX-038 in healthy people and PNH patients
This early-stage study tests how safe and tolerable ADX-038 is, and how the body processes it, in healthy volunteers and in people with paroxysmal nocturnal hemoglobinuria (PNH). It may help researchers understand whether the drug works safely for PNH patients and identify the right dosing.
Brisbane, QueenslandAges 18 years+ - NCT05876182RecruitingPhase 2
Vancomycin for primary sclerosing cholangitis
This Phase 2 study tests whether the antibiotic vancomycin can improve primary sclerosing cholangitis (PSC), a long-term bile-duct disease. You may be eligible if you have confirmed PSC and certain blood test and safety criteria, and you can follow medication washout rules.
Monza, Monza E BrianzaAges 15–70
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,245 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.