Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,158 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07840027RecruitingPhase 1
Vaccine for early Parkinson's disease
This study tests a new investigational vaccine called TRB-001 for people with early Parkinson's disease. It looks at whether the vaccine is safe and whether it can help the immune system fight the disease.
ViennaAges 40–75 - NCT07837934RecruitingPhase 2
Colchicine to prevent heart disease in adults with type 2 diabetes
This trial tests whether a daily low-dose of colchicine, a common anti-inflammatory medicine, can help prevent heart attacks and strokes in people with type 2 diabetes who do not yet have heart disease. If it works, it could be a simple addition to your current diabetes care.
Singapore, SingaporeAges 21–80 - NCT07838493Recruiting
Nasal spray oxytocin and vasopressin effects on emotion processing
This study tests whether a nasal spray of oxytocin or vasopressin changes how healthy people pay attention to emotional faces. It may help us understand how these hormones affect social behavior.
Chengdu, SichuangAges 18–30 - NCT07834346RecruitingPhase 3
Clarithromycin to prevent new infections in sepsis after pneumonia
This study tests whether an antibiotic called clarithromycin can help prevent additional infections in people who have sepsis from pneumonia. The goal is to see if it helps you recover faster and avoid complications.
Pátrai, AchaeaAges 18 years+ - NCT07842146Recruiting
Urolithin a for people with alzheimer's disease
This study tests a dietary supplement called Urolithin A (Mitopure®) to see if it helps people with mild-to-moderate Alzheimer's disease. You would take the supplement or a placebo, and researchers will track your memory and daily function over time.
PragueAges 55–85 - NCT03582293RecruitingPhase 3
Tranexamic acid to prevent worsening chronic brain bleed
This Phase 3 study tests whether tranexamic acid (a medicine that helps blood clot) can stop a chronic subdural hematoma from getting worse. It’s for people diagnosed by CT who are being treated without surgery at first.
AmsterdamAges 50 years+ - NCT06147635RecruitingPhase 2
Tributyrin for early acute pancreatitis
This trial tests a supplement called tributyrin (related to butyrate) to see if it can help prevent complications from acute pancreatitis when given early after diagnosis. It is for people having their first episode of pancreatitis, not for those with certain causes or weakened immune systems.
Delft, South HollandAges 18 years+ - NCT06264882RecruitingPhase 4
Study on ovarian suppression and body changes
This study looks at how temporarily stopping ovarian function affects weight, body fat, and blood vessel health in premenopausal women. If you qualify, you might help researchers understand the risks and benefits of short-term estrogen suppression.
Aurora, ColoradoAges 20–45 - NCT07826533Recruiting
Intravenous papaverine for term prelabour rupture of membranes
This study tests whether giving papaverine through a vein can help start labour in women whose water has broken but who are not yet having contractions. Papaverine is a medicine that relaxes smooth muscles, which may help the cervix prepare for delivery.
HolonAges Any age - NCT07826689RecruitingPhase 1/Phase 2
Oral pill for relapsing multiple sclerosis
This study tests an experimental oral drug, PRO-1562, in two parts: first in healthy volunteers to check safety, then in people with relapsing multiple sclerosis to see if it can reduce disease activity. It may offer a new, convenient treatment option.
Adelaide, South AustraliaAges 18–65 - NCT06341335RecruitingPhase 3
AK104 and AK109 plus paclitaxel for advanced stomach cancer
This trial tests a combination of two experimental immunotherapies (AK104 and AK109) with a standard chemo drug (paclitaxel) for people with advanced stomach or gastroesophageal junction cancer that has grown after initial treatment. The goal is to see if this new combination can help shrink tumors or slow the cancer better than chemo alone.
BeijingAges 18–75 - NCT07829029RecruitingPhase 4
Nighttime bladder leak treatments in older women
This study looks at whether two different bladder medications can help reduce nighttime bathroom trips and urine leaks in women with urgency incontinence. It aims to find out which treatment works better to improve sleep and quality of life.
San Francisco, CaliforniaAges 60 years+ - 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 - NCT05095857RecruitingPhase 4
Ketamine to improve care in severe acute brain injury
This Phase 4 trial tests whether giving ketamine during anesthesia is safe and helpful for adults with severe sudden brain injuries after surgery. It may improve how patients are sedated and cared for while they are on a breathing machine.
CopenhagenAges 18 years+ - NCT06472583RecruitingPhase 2
Immunotherapy and radiation before breast cancer surgery
This trial tests giving immunotherapy combined with a precise, high-dose radiation boost before surgery for HER2-negative breast cancer. The goal is to see if this approach can improve outcomes, especially for cancers that are more advanced or have spread to a few other spots in the body.
GliwiceAges 18 years+ - NCT07824271RecruitingPhase 1
Testing the safety of ALZ-507 in healthy older adults
This study tests a new oral drug called ALZ-507, which is being developed for Alzheimer's disease. It is an early-phase trial to check the drug's safety and how it is processed in the body, in healthy older adults.
Miami, FloridaAges 50–75 - NCT07822061RecruitingPhase 3
Weight loss study for people with excess weight
This study tests an investigational medicine for weight loss in people with excess weight. It aims to see how effective the medicine is and may help you lose weight and improve health.
Sapporo, HokkaidoAges 18 years+ - NCT07822321RecruitingPhase 3
Brexanolone for severe postpartum depression
This trial tests an investigational medicine to help mothers with severe depression that started late in pregnancy or shortly after childbirth. It aims to improve mood and overall well-being.
Tucson, ArizonaAges 15–45 - NCT07824622RecruitingPhase 1
Early safety study of an investigational drug in healthy adults
This study tests an investigational drug called AZD0543 to see if it is safe and how the body processes it. It is for healthy adults, not for treating a specific disease.
Los Alamitos, CaliforniaAges 18–55 - NCT07823608RecruitingPhase 3
Monthly study medicine for adults with sleep apnea and overweight who use a breathing machine
This study tests an investigational medicine taken once a month for adults with moderate to severe sleep apnea who are overweight or have obesity and use a CPAP or similar breathing machine. It aims to see if the medicine improves sleep-related breathing.
Cullman, AlabamaAges 18 years+ - NCT07819097RecruitingPhase 3
RSV vaccine study for healthy older adults
This study tests an RSV vaccine to see if it is safe and helps your immune system fight the virus. It's for older adults who are generally healthy, and it may help protect you from severe RSV illness.
Scottsdale, ArizonaAges 60 years+ - NCT07818564RecruitingPhase 1
Psilocybin study on belief and insight in healthy adults
This study tests whether a single dose of psilocybin (a psychedelic compound) can help people update their beliefs and gain new insights. It's for healthy adults with some prior psychedelic experience, and it's a small pilot study at Brown University.
Providence, Rhode IslandAges 18 years+ - NCT07821515Recruiting
How paracetamol affects gut hormones and blood sugar
This study looks at how paracetamol, a common painkiller, affects the release of gut hormones, sugar absorption from food, and blood sugar levels in healthy people. By participating, you'll help researchers understand more about how this everyday medicine influences your body's response to meals.
Copenhagen, CapitalAges 18 years+ - NCT07819552Recruiting
Virtual reality therapy for adult lazy eye
This trial tests a virtual reality (VR) therapy for adults with lazy eye (amblyopia) caused by a difference in prescription between the two eyes. It uses special glasses to train your eyes to work together, which may improve vision.
Coimbra, Coimbra DistrictAges 18–40
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,158 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.