Clinical trials
Placebo - Control clinical trials
Below are recruiting placebo - control clinical trials, each written for real people, not researchers. We’re tracking 3,955 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07536568Recruiting
Caffeine to speed recovery after eye surgery in older adults
This study tests whether a small dose of caffeine placed under the tongue helps older adults wake up faster and feel less confused after eye surgery under general anesthesia. Researchers want to see if this simple approach can improve how quickly patients recover and reduce post-surgery agitation.
CairoAges 65 years+ - NCT06533852RecruitingPhase 3
Fecal transplant trial for liver cirrhosis complications
This study tests whether stool from healthy donors can help people with advanced liver disease (cirrhosis) who have had complications like fluid buildup. You would receive the transplant through a colonoscopy or enema.
BarcelonaAges 18 years+ - NCT06934473Recruiting
How a gut hormone affects blood pressure after eating in healthy adults
This study looks at how a natural gut hormone called GIP affects blood pressure after a meal. It may help find new ways to treat blood pressure problems after eating.
Copenhagen, HellerupAges 18–40 - NCT06642883Recruiting
A supplement for gut health in ulcerative colitis remission
This study tests a supplement called ProLife 10 FORTE to see if it affects the natural balance of gut bacteria in people with ulcerative colitis (UC) that is in remission. If you have UC that is not active and you meet other health criteria, you may be able to join.
Padua, PaduaAges 18–75 - NCT07150026RecruitingPhase 1
Testing vorinostat for Pitt Hopkins syndrome
This trial tests whether vorinostat, a medication that may affect gene activity, is safe and helpful for children and young adults with Pitt Hopkins syndrome. Participants take the drug by mouth or feeding tube.
MedellínAges 3–21 - NCT07041359RecruitingPhase 4
Traditional Chinese medicine for elderly heart disease patients with ongoing symptoms
This trial tests whether traditional Chinese medicine can help elderly patients with coronary heart disease who still have chest pain or discomfort despite standard treatments. It focuses on those who cannot have or have not fully benefited from procedures like stents or bypass surgery.
Beijing, Beijing MunicipalityAges 75–90 - NCT06632613RecruitingPhase 2
Trial of ENN0403 to prevent kidney injury after heart surgery
This study tests a new drug (ENN0403) given during heart surgery to see if it prevents acute kidney injury—a sudden drop in kidney function. The trial is for people who are already at higher risk due to their specific heart surgery and other health factors.
ShanghaiAges 18–85 - NCT06123026RecruitingPhase 4
Medication to stop breast milk after 16–20 week abortion
This study tests a medication given after a second-trimester abortion (16–20 weeks) to see if it can safely and effectively stop the body from producing breast milk. It also wants to learn how well people tolerate the medicine.
Chicago, IllinoisAges 18–50 - NCT07132827RecruitingPhase 3
Study of SHR-1905 for chronic sinusitis with nasal polyps
This trial tests a new injection (SHR-1905) for people with chronic sinusitis and nasal polyps who still have symptoms despite using standard nasal spray treatments. It aims to see if the drug can reduce polyp size and improve symptoms.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07589465Recruiting
Lactulose to Help Digestion Recover After Appendix Surgery
This study tests whether taking lactulose (a gentle laxative) after appendix removal helps your stomach and intestines work normally again. The trial compares lactulose to a placebo (inactive pill) to see which helps patients recover bowel function faster.
SichuanAges 18 years+ - NCT07338344RecruitingPhase 2
Luspatercept with thalidomide for beta-thalassemia patients
This study tests whether a combination of two drugs, luspatercept and thalidomide, can help people with beta-thalassemia who need regular blood transfusions. It aims to reduce the number of transfusions needed.
Shenzhen, GuangdongAges 18–75 - NCT07134790RecruitingPhase 2
Probiotics to improve gut health during pregnancy
This trial tests whether taking probiotics during pregnancy can improve gut health in mothers living in areas where gut infections are common. It is for women who are in their first or early second trimester and who have certain bacteria in their stool.
Bobo-DioulassoAges 18 years+ - NCT06067100Recruiting
Effect of asthma medication on exercise in active adults
This trial tests how a common asthma medication (a long-acting beta-agonist combined with a corticosteroid) affects exercise performance in healthy, fit young adults. It may help you understand if you could join if you exercise regularly and have no asthma or heart issues.
CopenhagenAges 18–39 - NCT06617091RecruitingPhase 1
HIV vaccine trial for healthy adults with and without HIV
This trial tests an experimental HIV vaccine in healthy adults, including those living with HIV. The goal is to see if the vaccine is safe and prompts an immune response.
Mtubatuba, KwaZulu-NatalAges 18–50 - 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+ - 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
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Common questions
- Are there clinical trials for placebo - control?
- Yes. Clin2 currently lists 3,955 recruiting placebo - control 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 - control 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 - control 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.