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
- NCT06679816RecruitingPhase 4
Hydrocortisone for hormone replacement in large pituitary tumor surgery
This trial tests hydrocortisone as hormone replacement therapy after surgery for large pituitary tumors. It aims to help patients maintain healthy cortisol levels during recovery.
Beijing, Beijing MunicipalityAges 18–70 - NCT06680128RecruitingPhase 1/Phase 2
Testing mRNA Japanese encephalitis vaccines in healthy adults
This trial tests two new mRNA vaccines for Japanese encephalitis, a brain infection spread by mosquitoes. It aims to find the safest and most effective dose in healthy adults, with a first stage in younger adults and a second stage in all adults.
BrisbaneAges 18 years+ - NCT06681012Recruiting
Gelsectan for irritable bowel syndrome with diarrhea
This trial tests a supplement called Gelsectan to see if it reduces diarrhea and belly pain in people with diarrhea-predominant irritable bowel syndrome (IBS-D). It may help if you have loose, urgent stools more often than not.
LeuvenAges 18–65 - NCT06682975RecruitingPhase 1
Safety study of ZP9830 in healthy people
This study tests a new medicine called ZP9830 to see if it is safe for people and how it works in the body. Healthy volunteers aged 18 to 45 can join.
Leiden, CLAges 18–45 - NCT06684470RecruitingEarly Phase 1
Combining a low-FODMAP diet with medication for IBS-D
This trial tests if a special diet (low-FODMAP) combined with a medication (mirtazapine) can improve IBS with diarrhea symptoms. It is for adults who have not tried these treatments before.
Jacksonville, FloridaAges 18–70 - NCT06686355RecruitingPhase 2
Yiqilishui formula for sepsis-related heart problems
This trial tests a Chinese herbal formula called Yiqilishui in people with sepsis who have developed heart muscle weakness. It aims to see if the formula can help improve heart function.
BeijingAges 50–85 - NCT06686472RecruitingPhase 2
Testing TL-925 eye drops for allergic conjunctivitis
This trial tests an investigational eye drop called TL-925 to see if it can treat allergic conjunctivitis (eye allergies). If you have a history of eye allergies and a positive allergy skin test, you may be able to join.
Memphis, TennesseeAges 18 years+ - NCT06687057Recruiting
Heart rate training for anxiety and stomach issues
This study tests whether a special breathing and heart-rate training program (called HRV biofeedback) can help people who have both anxiety and a sensitive stomach or bowel (functional gastrointestinal disorder). If you often feel anxious and have belly discomfort without a clear medical cause, this training might improve both your digestion and your mood.
MilanAges 18 years+ - NCT06687265RecruitingPhase 2
Metformin for reducing liver pressure in cirrhosis
This trial tests if metformin can lower the pressure in the liver's blood vessels (portal hypertension) in people with cirrhosis. The goal is to see if it can help reduce complications like swelling or bleeding.
Clichy, FranceAges 18 years+ - NCT06689254RecruitingPhase 2
Testing mifepristone for hard-to-treat PTSD in Dutch adults
This study tests a new medicine (mifepristone) to see if it helps people with PTSD that hasn't improved after standard treatments. You must be fluent in Dutch and have tried at least two PTSD treatments, including trauma-focused therapy.
Amsterdam, North HollandAges 18 years+ - NCT06693674RecruitingPhase 3
Sacubitril-valsartan for heart health in congenital heart disease
This trial tests if a drug called sacubitril-valsartan can improve heart structure and function in adults with congenital heart disease. You will take the drug and have heart imaging to see changes.
Rochester, MinnesotaAges 18 years+ - NCT06695221Recruiting
Kefir trial for better health in Edmonton adults
This study tests if drinking kefir, a fermented dairy drink, can improve health in adults who are overweight or have high blood sugar or type 2 diabetes. It looks at how kefir might help with weight, blood sugar, and overall wellness.
Edmonton, AlbertaAges 24–70 - NCT06696222Recruiting
Fermented vegan diet for health and colitis
This trial tests whether a fermented vegan diet can improve health in people with inflammatory bowel disease (IBD), like ulcerative colitis or Crohn's disease, and in healthy volunteers. It aims to see how the diet affects the gut.
MalmöAges 18 years+ - NCT06696703Recruiting
Human urinary kallidinogenase for acute ischemic stroke
This trial tests whether a medicine called human urinary kallidinogenase can reduce inflammation after a stroke. It may help people who have had a first or recent stroke and have certain levels of disability.
Harbin, HeilongjiangAges 18 years+ - NCT06696794RecruitingPhase 3
Testing mitomycin before surgery for high-risk bladder cancer
This trial tests whether giving mitomycin directly into the bladder before surgery can help people with high-risk non-muscle-invasive bladder cancer. The goal is to see if this approach is safe and effective at preventing cancer from coming back.
Wuhan, HubeiAges 18–75 - NCT06697886RecruitingPhase 3
Antiwei Granules for Common Cold
This trial tests Antiwei Granules for treating the common cold. It looks for adults aged 18 to 65 who started having cold symptoms within the past 48 hours and have a mild fever.
BeijingAges 18–65 - NCT06699030Recruiting
Diet therapy to pass tiny gallstones
This trial tests whether a special diet can help pass tiny gallstones (smaller than 2 mm) out of your gallbladder without surgery. It might be a good option if you have very small stones and want to avoid more invasive treatments.
Lanzhou, GansuAges 18–70 - NCT06699121RecruitingPhase 2
Testing LB-P8 for people with primary sclerosing cholangitis
This trial tests a new treatment called LB-P8 for people with primary sclerosing cholangitis (PSC), a liver disease. It aims to see if LB-P8 is safe and can help slow the disease down. You may join if you meet certain health requirements.
Sacramento, CaliforniaAges 18–75 - NCT06699420RecruitingPhase 4
Qishenyiqi pill for small vessel heart disease
This trial tests if a Chinese herbal pill called Qishenyiqi can help people with chest pain caused by tiny heart blood vessels that are too tight. It may be an option if standard tests show your heart vessels are mostly clear but your blood flow is reduced.
Jinan, ShandongAges 40–75 - NCT06700044Recruiting
Probiotics for high-risk pregnancy
This study tests whether taking a probiotic supplement during pregnancy can help prevent complications in women at risk for preeclampsia. You would take a daily probiotic or placebo pill from about 20 weeks until delivery.
LundAges 18 years+ - NCT06700915Recruiting
Berberine supplement study for blood sugar support
This study tests if a berberine-based supplement can help regulate blood sugar and metabolism in people who are overweight and have slightly elevated blood sugar (prediabetes). Participants will take the supplement and maintain their normal lifestyle.
Santa Monica, CaliforniaAges 18–70 - NCT06701396RecruitingPhase 3
Tasimelteon for delayed sleep phase disorder with genetic variant
This study tests a new sleep medication called tasimelteon compared to a placebo (inactive treatment) for people with a specific sleep disorder linked to a genetic change in the body's internal clock. If you have Delayed Sleep-Wake Phase Disorder and carry the CRY1Δ11 variant, this trial may help improve your sleep timing.
Çankaya, AnkaraAges 18–75 - NCT06702124RecruitingPhase 3
Rotigotine patch with rivastigmine for mild to moderate Alzheimer's
This trial tests if adding a rotigotine patch to your usual rivastigmine treatment can help with symptoms of Alzheimer's. It is for people with mild to moderate Alzheimer's who have been stable on rivastigmine for at least 3 months.
Rome, ItalyAges 50–85 - NCT06702449RecruitingPhase 1/Phase 2
UTI vaccine safety and immune response study for adults 18-64
This trial tests a new vaccine to prevent urinary tract infections (UTIs). It first checks safety and immune response in healthy adults, then in women with recent E. coli UTIs. The goal is to see if the vaccine can reduce future infections.
Lenexa, KansasAges 18–64
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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.