Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,240 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06975618RecruitingPhase 1/Phase 2
Study of CYH33 for PIK3CA-related overgrowth and vascular malformations
This trial tests a new drug called CYH33 for people with conditions caused by a specific gene mutation (PIK3CA) that leads to abnormal tissue growth or blood vessel problems. It aims to see if the drug is safe and can help shrink or control these growths.
Beijing, Beijing MunicipalityAges Any age - NCT06958952Recruiting
Digestive aid for new stomach upset
This study tests whether a natural digestive supplement can help people with new-onset dyspepsia (stomach upset). It's for people who haven't taken other medications and don't have other stomach problems.
TehranAges 18–75 - NCT07492160RecruitingPhase 2
Cabergoline for Breast Symptoms After Pregnancy Loss
This study tests whether a medication called cabergoline can help stop milk production and reduce breast discomfort after a pregnancy loss or abortion.
Brooklyn, New YorkAges 18 years+ - NCT06446479RecruitingPhase 2
THC's effect on alcohol use and brain reward
This study tests whether THC (the active ingredient in cannabis) can change how much alcohol you drink and how your brain responds to rewards. You will have MRI scans and take THC or a placebo, then drink alcohol in a controlled setting.
Aurora, ColoradoAges 21–40 - NCT07470021Recruiting
Numbing injection for pain relief after ankle surgery
This study tests whether a numbing injection around the ankle nerves before surgery can reduce pain and help you recover faster after ankle arthroscopy. It is for people having this keyhole surgery and staying in the hospital for a short time.
Hangzhou, ZhejiangAges 18–65 - NCT07711990Recruiting
Studying ketone supplements and brain health
This trial tests how a ketone drink affects the brain in healthy middle-aged adults. It may help researchers understand if ketones can support brain function.
Columbus, OhioAges 45–65 - NCT07709494RecruitingPhase 1
Inhaled Rev-56 for healthy volunteers and people with bronchiectasis
This trial tests an inhaled drug called Rev-56 in healthy adults and in adults with non-cystic fibrosis bronchiectasis who have a chronic lung infection with Pseudomonas aeruginosa. It aims to see if the drug is safe, well-tolerated, and helps reduce the bacteria in the lungs.
Miami, FloridaAges 18–80 - NCT07707648RecruitingEarly Phase 1
Testing ENCER for fatigue during chemo or radiation
This trial tests if ENCER can safely help with cancer-related fatigue. You can join if you're starting a new round of chemo or radiation and can use a smartwatch and answer digital surveys.
Tel AvivAges 18 years+ - NCT06764966RecruitingPhase 2
Statin and beta blocker study for liver disease
This trial tests if adding a statin to beta blocker treatment helps people with advanced liver disease (cirrhosis) who have had complications like fluid buildup, confusion, or bleeding. It is for patients who are already taking a non-selective beta blocker and will be followed for 12 months.
Charleston, West VirginiaAges 18 years+ - NCT07229014Recruiting
Collagen supplement for quality of life and appetite
This trial tests whether a daily collagen supplement can improve quality of life, appetite, and blood sugar control in overweight adults who feel low energy or have trouble sleeping. You will take the supplement, use a continuous glucose monitor, and complete online surveys.
London, LondonAges 18–65 - NCT06765057RecruitingPhase 2/Phase 3
Probiotics for Depression and Metabolic Health
This trial tests whether taking a probiotic supplement can improve both depression symptoms and metabolic health (like waist size, blood sugar, and cholesterol) in people with major depression. It may be a good fit if you are already on an antidepressant and have signs of metabolic syndrome.
Riyadh, Riyadh RegionAges 18–65 - NCT07699393RecruitingPhase 2
Choline supplement study for healthy pregnancies
This trial tests whether taking extra choline (a nutrient similar to B vitamins) during pregnancy can improve health for mothers and babies. You may be eligible if you are early in a singleton pregnancy and do not drink alcohol.
Cape TownAges 18–45 - NCT06715748RecruitingPhase 4
Ketone drink study for cyclists after hard exercise
This study tests if taking a ketone drink before intense cycling helps your heart recover faster afterwards. It's for healthy recreational cyclists who are very fit for their age and sex.
Hasselt, LimburgAges 18–50 - NCT07254403Recruiting
Beef vs. plant protein for muscle health in older adults
This study compares how well beef protein and plant protein help build muscle in older adults who may be starting to feel weak or lose muscle. You'll eat test meals and have your muscle response measured using a safe, stable isotope technique.
College Station, TexasAges 65–95 - NCT07181486RecruitingPhase 1
Safety study of a vaginal gel for healthy women
This trial tests a gel placed in the vagina to see if it is safe. Healthy women with regular periods who have a steady partner may join.
San Francisco, CaliforniaAges 18–45 - NCT06986993RecruitingPhase 4
Semaglutide for smoking and weight in people with obesity
This study tests whether the medication semaglutide (similar to Ozempic/Wegovy) can help people who smoke and have obesity cut down on cigarettes, even if they aren't ready to quit. Participants will receive the drug and be monitored for changes in smoking habits and health.
Oklahoma City, OklahomaAges 18–65 - NCT07484061Recruiting
Drinkable supplement for hair loss in women on weight-loss drugs
This trial tests if a special drinkable supplement can help prevent or reduce hair loss in women who are taking a GLP-1 or GIP receptor agonist (a type of weight-loss or diabetes medication). The study looks for women who have just started this medication or have been on it for less than 3 months.
Madrid, MadridAges 35 years+ - NCT06719180RecruitingPhase 4
Pain relief after a hysterectomy
This study tests if numbing the top of the vagina (vaginal cuff) with a local anesthetic can reduce the need for pain medicine after a hysterectomy done by laparoscopy (small cuts in the belly). If you are having this surgery for a non-cancerous condition or cancer, you may be able to join.
Flushing, New YorkAges 18 years+ - NCT06033196RecruitingPhase 2
Tocilizumab to prevent lung transplant rejection
This trial tests a drug called tocilizumab (brand name Actemra) to see if it helps prevent rejection after lung transplantation. Tocilizumab targets part of the immune system that may otherwise attack the new lungs.
Phoenix, ArizonaAges 12–75 - NCT06391957Recruiting
Spirulina for recovery after hard exercise
This trial tests if taking a spirulina supplement helps your muscles recover faster after a tough workout. You might join if you are healthy, exercise regularly, and don't do formal weightlifting.
ExeterAges 18–40 - NCT07673107RecruitingPhase 2
Botulinum toxin injection for essential tremor of hands and arms
This trial tests an investigational botulinum toxin injection (AGN-151607-DP) to reduce shaking in the hands and arms caused by essential tremor. It is for adults who have been diagnosed with this condition and who do not have certain nerve or muscle disorders.
Fresno, CaliforniaAges 18–85 - NCT06686693RecruitingPhase 4
IV iron and exercise at high altitude
This study tests whether giving iron through a vein helps you perform better at high altitude. It may help you if you are a healthy adult who exercises regularly.
Natick, MassachusettsAges 18–40 - NCT07056699RecruitingPhase 3
Study on diabetes drugs and ketone production in type 1 diabetes
This trial tests how two diabetes medications, SGLT2i and pioglitazone, affect ketone production in people with type 1 diabetes. It aims to find new ways to improve blood sugar control.
San Antonio, TexasAges 18 years+ - NCT07667803RecruitingPhase 3
Study of elecoglipron for weight loss in obesity or overweight
This trial tests an investigational drug called elecoglipron to see if it helps people with obesity or overweight lose weight. It may be an option if you have a high body mass index or weight-related health issues like high blood pressure or prediabetes.
Birmingham, AlabamaAges 18 years+
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,240 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.