Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,230 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05662111RecruitingPhase 2
Etidronate treatment for brain calcifications in Fahr disease
This Phase 2 study tests whether etidronate (a medicine that affects bone-calcium handling) can help people with Fahr disease or a similar condition marked by calcium deposits in the brain. It will also check safety and whether certain tests can track changes over time.
Utrecht, UtrechtAges 18 years+ - NCT05816343RecruitingPhase 2
Orlistat for high triglycerides in people with rare genetic lipid conditions
This Phase 2 trial studies how well and how safely orlistat works over the long term for people who have very high triglycerides linked to rare genetic lipid disorders. It may help lower triglycerides and assess long-term side effects, but you must meet specific genetic, lab, and health requirements.
Dallas, TexasAges 8 years+ - NCT05834777RecruitingPhase 3
Prevent low blood pressure during dialysis by blocking bradykinin
This Phase 3 trial tests a medicine that blocks a body signal (bradykinin) to help prevent dangerous drops in blood pressure during hemodialysis. If you often get “intradialytic hypotension,” this study may help you dialyze more safely.
Nashville, TennesseeAges 18–80 - NCT05829317RecruitingPhase 4
Magnesium to prevent new atrial fibrillation in ICU patients
This trial tests whether giving magnesium can lower the chance of developing new irregular heartbeat (atrial fibrillation) in critically ill adults in the ICU. If you are at risk but do not already have this rhythm issue, magnesium may help prevent it.
Hamilton, OntarioAges 18 years+ - NCT05711082Recruiting
Testing brain monitoring and dopamine in healthy adults
This study tests how the brain responds during monitoring tasks related to dopamine (a brain chemical involved in movement and motivation). It’s meant for healthy volunteers, so you may help researchers understand how dopamine-related signals work in real time.
BronAges 18–45 - NCT05703672RecruitingPhase 3
Switching smokers to e-cigarettes who do not want to quit
This study tests whether switching from regular cigarettes to e-cigarettes helps smokers who are not interested in quitting. You would also be offered varenicline and regular check-ins to compare outcomes over time.
Kansas City, MissouriAges 21 years+ - NCT05272254RecruitingPhase 2
Povidone iodine in kids’ dental cavities surgery
This trial tests whether povidone iodine helps prevent problems or improves outcomes when children with severe early childhood cavities need dental treatment in the operating room. You may be able to join if your child fits the age and dental needs and has no iodine-related or thyroid problems.
Rochester, New YorkAges 2 years–5.9 years - NCT07188051Enrolling by invitation
Beauty from within hair, nail and skin trial
This trial tests a daily supplement to see if it helps improve facial wrinkles, sagging skin, hair growth, thickness, and nail strength. It could help people who are concerned about these signs of aging and want a natural approach.
Cincinnati, OhioAges 35–65 - NCT05473793Recruiting
Dried vegetables study for constipation and gut bacteria
This study tests whether eating a dried vegetable can improve bowel habits and change gut bacteria. It may help people who feel their bowel function is not working well and have hard or infrequent stools.
Wageningen, GelderlandAges 20–80 - NCT05616819Recruiting
Morning light program to improve mood in some service members
This study tests whether getting morning light exposure can improve mood for service members who currently have mild or more depression symptoms. You’d follow a plan for morning light over about 6 weeks, and the researchers check changes in mood.
Tucson, ArizonaAges 18–60 - NCT05318534RecruitingPhase 1
Testing a new medicine for Cold Agglutinin Disease
This Phase 1 study checks whether an investigational medicine is safe and tolerable, and how the body processes it. For people with Cold Agglutinin Disease, it also looks at early blood markers of whether the disease responds.
LeedsAges 18 years+ - NCT05325645RecruitingPhase 3
Weekly brexpiprazole shot for acute schizophrenia flare-ups
This Phase 3 study tests whether a once-weekly brexpiprazole medicine can help people whose schizophrenia is currently flaring up and who need hospital-level care. It compares care for acute relapse using a longer-lasting (weekly) form of brexpiprazole.
Kure-shiAges 18–64 - NCT06569394RecruitingPhase 2
Testing CBD in young adults who use cannabis heavily
This study tests whether cannabidiol (CBD) can help young adults who use cannabis heavily but aren't looking to quit. You'll take a CBD pill and see if it changes your cannabis use or related symptoms.
Aurora, ColoradoAges 18–25 - NCT07237880Recruiting
Papaverine to shorten pushing phase of labor
This study tests whether a medicine called papaverine can shorten the pushing phase of labor in women whose labor is started with a balloon catheter. If you are planning a vaginal delivery and meet the other criteria, you may be able to join.
HaderaAges 18–50 - NCT05621070RecruitingPhase 3
Test drug JS002 for high cholesterol not at goal
This Phase 3 study tests whether JS002 alone can lower LDL “bad” cholesterol in people whose levels are still too high for their heart-risk level. It will also check how safe the treatment is, especially for heart and metabolic side effects.
Beijing, Beijing MunicipalityAges 18–80 - NCT05058872RecruitingPhase 4
Study links birth-control hormones to brain reward responses
This Phase 4 study uses brain imaging and daily questions to understand how contraceptive hormones may affect reward and brain signals. You may be able to join if you meet the health, birth-control, and safety requirements for MRI.
Aurora, ColoradoAges 18 years+ - NCT05203965RecruitingEarly Phase 1
Brain imaging study testing mavoglurant in alcohol risk
This early-stage study uses brain scans to understand how brain signaling tied to alcohol vulnerability works, and it tests mavoglurant, a medicine that blocks a brain receptor. Results may help researchers learn why some people are more vulnerable to alcohol problems.
Hartford, ConnecticutAges 18–45 - NCT05071131Recruiting
Inulin supplement to improve gut health in kidney disease
This trial studies whether taking inulin—a dietary fiber—can improve gut bacteria and the gut barrier in people with end-stage kidney disease on hemodialysis. It may help reduce gut-related problems that can affect overall health in kidney disease.
BerlinAges 18–75 - NCT05076019Recruiting
Atorvastatin during heart valve surgery for patients over 60
This trial studies whether taking atorvastatin (a cholesterol medicine) around the time of surgical aortic valve replacement can improve outcomes. It is mainly for people who have not taken similar medicines recently and do not have certain heart rhythm or liver/kidney problems.
OdenseAges 60–95 - NCT05245591RecruitingPhase 2/Phase 3
Pentosan for bladder irritation after pelvic radiation
This trial studies whether pentosan polysulfate sodium can reduce bladder bleeding (hematuria) and urinary symptoms caused by radiation cystitis after pelvic cancer radiation. It may help people who are still having these bladder problems more than 6 months after radiation.
TaipeiAges 20 years+ - NCT05080569RecruitingPhase 4
Extra support after IUI for couples with unclear infertility
This study tests whether adding support in the period after ovulation (the “luteal phase”) helps people who are starting IUI (intrauterine insemination) because their infertility is unexplained. It’s designed to see if the added care improves chances when mild ovarian stimulation is used.
UtrechtAges 18 years+ - NCT05248620Recruiting
Antibiotics to prevent infections in hemodialysis catheters
This trial tests whether taking preventive antibiotics (or a placebo sugar pill) can lower the risk of infections in people who receive hemodialysis through a catheter. It may help protect you from serious catheter-related infections, but you must be able to follow the study’s medicine and consent rules.
Copenhagen, Capital RegionAges 18 years+ - NCT05224960RecruitingPhase 2
Stem cell treatment for worsening liver cirrhosis
This trial tests umbilical-cord stem cells to see if they can improve outcomes in people with decompensated (worsening) cirrhosis. You may be considered if your liver disease is moderate to severe (MELD 15–30) and you do not have certain high-risk problems right now.
Lanzhou, GansuAges 18–75 - NCT05139719RecruitingPhase 2
HEC585 trial for slowing lung scarring decline
This Phase 2 study tests whether HEC585 can slow the decline in lung function in people with progressive fibrosing interstitial lung disease (PF-ILD). It may help preserve breathing capacity and breathing tolerance over time.
Beijing, Beijing MunicipalityAges 18 years+
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,230 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.