Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,225 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05290285Recruiting
Amino acids for anorexia nervosa, compared with placebo
This study tests whether taking certain amino acids can help people with anorexia nervosa. Participants are randomly assigned to amino acids or a placebo (a look-alike with no active ingredient) to see which works better.
Garda, ItalyAges 16–50 - NCT05300035RecruitingPhase 2
HIV treatment add-on antibodies during early infection
This study tests whether adding two antibody medicines to standard HIV treatment helps people control HIV better after stopping treatment. It focuses on people with recently diagnosed (“primary”) HIV infection, aiming to improve long-term control after ART is interrupted.
BobignyAges 18–70 - NCT05317819RecruitingPhase 3
Test ADI-PEG 20 versus placebo for advanced liver cancer
This study tests whether ADI-PEG 20 helps people with advanced, unresectable hepatocellular carcinoma (liver cancer) who have high arginine levels. Participants get ADI-PEG 20 or a placebo to see which works better and improves outcomes.
ChanghuaAges 18–99 - NCT05327790RecruitingPhase 2
Fecal transplant to boost new biologic treatment for ulcerative colitis
This trial tests whether fecal microbiota transfer (a stool-based therapy) can improve outcomes when added to starting a new biologic medicine for ulcerative colitis. It compares fecal transplant versus placebo (a sham treatment) to see if symptoms and inflammation improve faster or more strongly.
Edmonton, AlbertaAges 18–75 - NCT05338190RecruitingPhase 3
Belimumab added to rituximab for chronic immune thrombocytopenia
This Phase 3 study tests whether adding an injection called belimumab (or a placebo) to rituximab works better and is safe for adults with long-lasting immune thrombocytopenia (ITP). You may be eligible if your platelet counts stay low despite prior steroid and/or IVIG treatment and if infections, vaccines, and other health conditions meet the study rules.
CréteilAges 18 years+ - NCT05342194RecruitingPhase 3
Testing an immunotherapy plus chemo for advanced bile duct cancer
This Phase 3 study tests whether toripalimab (an immunotherapy) combined with lenvatinib and chemotherapy works better than standard treatment for advanced intrahepatic cholangiocarcinoma. It aims to help people live longer and/or control the cancer more effectively.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05377034RecruitingPhase 2
Y-90 and immunotherapy vs Y-90 plus placebo for liver cancer
This phase 2 study tests whether adding immunotherapy drugs (atezolizumab and bevacizumab) after Y-90 treatment works better and is safe compared with Y-90 followed by placebo. It is for people with liver cancer that has not spread outside the liver but is difficult to treat.
BeijingAges 21–99 - NCT05389930RecruitingPhase 2
Study how cannabis affects alcohol drinking
This Phase 2 study looks at whether using cannabis changes how much alcohol you drink. You may be able to take part if you’ve been drinking heavily and using cannabis recently and can meet health and screening requirements.
Providence, Rhode IslandAges 21–50 - NCT05405868RecruitingPhase 3
Nicotinamide for early to moderate open-angle glaucoma
This trial tests whether nicotinamide (a form of vitamin B3) can slow vision changes from open-angle glaucoma. It compares nicotinamide versus a placebo (inactive pill) in adults with early to moderate disease.
Belfast, Northern IrelandAges 18 years+ - NCT05424003RecruitingPhase 2
Semaglutide to prevent weight gain after liver transplant
This trial tests semaglutide (a diabetes/weight-loss medicine) to help prevent weight gain after liver transplant. It is also looking at blood sugar and safety while you continue your transplant medicines.
Richmond, VirginiaAges 18–75 - NCT05432466RecruitingPhase 3
Celiprolol vs placebo for vascular Ehlers-Danlos heart vessel fragility
This Phase 3 study compares celiprolol (a blood vessel–related medicine) versus placebo to see which better reduces vascular risks in people with vascular Ehlers-Danlos syndrome. It requires confirmed COL3A1 genetic findings and specific imaging before starting.
Culver City, CaliforniaAges 15–64 - NCT05534672RecruitingPhase 3
Rapamycin for drug-resistant seizures in tuberous sclerosis
This trial tests whether rapamycin (compared with a placebo) can reduce seizures caused by tuberous sclerosis complex (TSC) that have not been controlled by usual medicines. If you qualify, you may be helping doctors find a safer and more effective option for seizure control.
LodzAges 3 months–50 years - NCT05540288RecruitingPhase 3
Nalmefene vs placebo to reduce cravings in behavioral addictions
This study tests whether nalmefene, a non-opioid medicine, can reduce craving episodes in people with behavioral addictions like gambling, food addiction, or sexual addiction. Participants keep tracking cravings weekly, and compare the nalmefene effect against a placebo in addition to their usual care.
BesançonAges 18 years+ - NCT05558007RecruitingPhase 2
Topical treatment trial after prostate surgery in men
This Phase 2 study tests how safe and effective a topical medicine (BZ371A) is for men after prostate surgery, with the goal of improving sexual recovery and monitoring side effects. You may be able to join if you meet specific timing, health, and medication criteria after radical prostatectomy.
Belo HorizonteAges 40–65 - NCT05580562RecruitingPhase 3
ONC201 for newly diagnosed H3 K27M brain tumor after radiation
This study tests whether ONC201 (also called ONC201) can improve outcomes for people with a newly diagnosed H3 K27M–mutant diffuse brain tumor after they finish radiation. It looks for safety and whether treatment can help control the tumor.
Phoenix, ArizonaAges Any age - NCT05587361RecruitingPhase 4
Nicotine cue study using propranolol to study craving
This study tests whether a beta-blocking medicine (propranolol) and nicotine patches change how strongly your brain responds to smoking cues. It may help researchers understand what drives cigarette cravings and how to reduce them.
Tulsa, OklahomaAges 21–60 - NCT05596786RecruitingPhase 3
Rituximab for worsening inflammatory lung scarring
This trial studies whether rituximab can slow worsening lung scarring (interstitial lung disease) when there is an inflammatory component. You would get rituximab or a placebo (inactive treatment) in a blinded, randomized design to compare safety and effectiveness.
ToursAges 18–100 - NCT05633810RecruitingPhase 3
Testing colchicine plus coated aspirin to prevent heart events
This Phase 3 study tests whether colchicine and a special type of aspirin can lower the risk of future heart attacks, strokes, or other major heart problems in people with type 2 diabetes who have not had a prior heart event. It aims to reduce cardiovascular risk using medicines that may calm inflammation and protect blood vessels.
Bentley, Western AustraliaAges 55–80 - NCT05640843Recruiting
Plant-based diet study for MGUS or smoldering myeloma
This trial tests whether a whole-food, plant-based eating pattern—plus supplements or placebo—can improve health outcomes in people with MGUS or smoldering multiple myeloma. You may be asked to follow specific recipes and stop certain supplements, so it helps to confirm you can stick with the plan.
Atlanta, GeorgiaAges 18 years+ - NCT05690048RecruitingPhase 2
Fecal transplant to help liver cancer respond to standard drugs
This trial studies whether a fecal microbiota transfer (a “gut bacteria transfer” from a donor) can help liver cancer patients overcome resistance to atezolizumab and bevacizumab. It aims to improve how well the standard medicines control the cancer.
Heidelberg, Baden-WurttembergAges 18 years+ - NCT05695313RecruitingPhase 2
Prevent nerve damage during weekly paclitaxel breast cancer treatment
This Phase 2 study tests whether a daily tablet (Onlife) can help prevent nerve side effects (“neurotoxicity”) caused by weekly paclitaxel given for breast cancer. You’d be randomly assigned to the tablet or a placebo, and you would be closely followed with questionnaires and clinic visits.
DijonAges 1.5 years+ - NCT05695261RecruitingPhase 2
Oral microbiome capsules for peanut allergy in teens
This Phase 2 study tests whether taking capsules made from donor gut microbes is safe and can reduce allergic reactions to peanuts. It involves peanut allergy testing and close follow-up with stool samples and check-ins.
Boston, MassachusettsAges 12–17 - NCT05716100RecruitingPhase 3
Study drug for focal epilepsy that isn’t controlled on current meds
This trial tests XEN1101 compared with a placebo (inactive pill) in people with focal-onset seizures that haven’t been fully controlled despite trying at least two anti-seizure medicines. If you qualify, you may help researchers see whether the study drug reduces seizure frequency and improves control.
Little Rock, ArkansasAges 18 years+ - NCT05722782RecruitingPhase 2
Kidney stone pain treatment after ER discharge
This study compares an anti-inflammatory pain medicine (NSAID) given by mouth versus acetaminophen (paracetamol) or placebo after you leave the emergency room for a “renal colic” (kidney stone pain). It looks at whether the NSAID helps control pain better and whether it’s safe for people with uncomplicated kidney stone pain.
MonastirAges 18 years+
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,225 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.