Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,245 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06093477Recruiting
Melatonin and recovery for teens after surgery
This study tests whether taking melatonin (a natural sleep hormone) after a major bone or joint surgery helps teens recover better. If you are 12-18 and having a surgery like scoliosis repair, you may be able to join.
Palo Alto, CaliforniaAges 12–18 - NCT06093932RecruitingPhase 4
Songling Xuemaikang Capsules for mild high blood pressure
This study tests whether Songling Xuemaikang Capsules can help lower blood pressure in people with mild hypertension who are not currently on regular medication. It may offer a natural treatment option for managing early-stage high blood pressure.
Beijing, Beijing MunicipalityAges 35–65 - NCT06095765RecruitingPhase 3
Colchicine for heart disease after stent placement
This trial tests if colchicine, a common anti-inflammatory medicine, can help prevent future heart problems in people who have coronary artery disease and recently had a stent placed. It's for adults with at least one extra risk factor like diabetes, smoking, or high blood pressure.
AalstAges 45 years+ - NCT06096116RecruitingPhase 3
Trial of a blood product for heparin resistance during heart surgery
This study tests a blood-derived medicine (antithrombin) to help people who do not respond well to the blood thinner heparin during heart surgery. It aims to make surgery safer by improving blood thinning.
Stanford, CaliforniaAges 18–85 - NCT06096259RecruitingPhase 2
Preventing knee arthritis after ACL injury
This trial tests whether metformin, a common diabetes medicine, can prevent arthritis after an ACL injury. If you are planning to have ACL surgery soon, you may be able to join.
Atlanta, GeorgiaAges 18–45 - NCT06096597RecruitingPhase 2/Phase 3
Amniotic Membrane Therapy for Bladder Pain
This trial tests a treatment made from amniotic membrane (a natural tissue) to help reduce pain and discomfort in people with Interstitial Cystitis (also called Painful Bladder Syndrome). It is for women who have tried at least one other treatment without success.
Clevleand, OhioAges 18 years+ - NCT06096857RecruitingPhase 2
Cardamom and topical bacteria cream for eczema
This study tests whether taking cardamom by mouth and applying a cream made from a harmless bacteria (Roseomonas) can help treat eczema (atopic dermatitis) in people age 2 and older.
Bethesda, MarylandAges 2–100 - NCT06104839RecruitingPhase 2
Oral NXC-736 for moderate to severe alopecia areata
This trial tests an oral medication called NXC-736 for people with moderate to severe alopecia areata. It aims to see if the drug is safe and can help regrow hair.
SeoulAges 19–65 - NCT06105775Recruiting
Nitrate supplement for high blood pressure in pregnancy
This trial tests if a nitrate supplement (similar to beetroot) can help control chronic high blood pressure in early pregnancy. It is for women already taking methyldopa and enrolled before 16 weeks.
Ribeirão Preto, São PauloAges 18 years+ - NCT06106646Recruiting
Vitamin C and smoking in pregnancy: long-term lung health follow-up
This study is checking on the long-term lung health of children whose mothers took vitamin C or a placebo during pregnancy and either smoked or did not smoke. It's a follow-up to see if vitamin C might have lasting benefits for their breathing.
Indianapolis, IndianaAges 6–16 - NCT06110130RecruitingPhase 4
Empagliflozin for kidney health in African American veterans
This study is testing whether the drug empagliflozin (Jardiance) can help protect the kidneys of African American veterans who already have some kidney damage but do not have diabetes. The goal is to see if the drug can reduce damage at the cellular level.
Washington D.C., District of ColumbiaAges 19–90 - NCT06111976Recruiting
TMS plus reactivation therapy for resistant PTSD
This trial tests if adding a type of brain stimulation (TMS) to a memory reactivation therapy can reduce PTSD symptoms that haven't improved with standard antidepressants. If you have persistent PTSD, this study could offer a new treatment option.
ParisAges 18–65 - NCT06112990RecruitingPhase 3
Creatine and exercise to keep muscles strong in prostate cancer
This trial tests if taking creatine plus doing resistance exercises at home can help men with prostate cancer maintain muscle mass and slow cancer growth. You would take creatine or a placebo for 52 weeks and do simple strength exercises twice a week.
Salt Lake City, UtahAges 18 years+ - NCT06115603RecruitingPhase 2
Testing CBG for ADHD symptoms
This study tests whether a non-psychoactive compound from hemp called CBG (cannabigerol) can help with ADHD symptoms. You will take CBG capsules or a placebo for several weeks to see if it improves focus and reduces hyperactivity.
Fayetteville, ArkansasAges 18–55 - NCT06118034RecruitingPhase 3
Colchicine for heart surgery recovery
This study tests whether the drug colchicine can reduce inflammation and protect organs during and after planned heart surgery. It may help people recover better.
Nanjing, JiangsuAges 50–80 - NCT06118580RecruitingPhase 2
Alcohol and aggression brain study
This study looks at how alcohol affects the brain in people with a history of aggression or alcohol use disorder. You may be able to join if you're a right-handed adult who drinks regularly and fits one of the specific groups being studied.
Columbus, OhioAges 21–55 - NCT06121284RecruitingPhase 2
Brain stimulation plus medication for youth suicide
This study tests if a new type of brain stimulation (iTBS) combined with a medicine called D-cycloserine can reduce suicidal thoughts in young adults who have previously attempted suicide. It aims to find a faster, mood-boosting treatment option for young people at risk.
Calgary, AlbertaAges 18–24 - NCT06123156RecruitingPhase 3
Early erectile rehabilitation after rectal cancer treatment
This trial tests if sildenafil (Viagra) given soon after surgery and radiation for rectal cancer can help preserve erectile function. It is for men with normal erectile function before treatment who have a regular partner.
AmiensAges 18–70 - NCT06123715RecruitingPhase 2
Vitamin C to reduce pain after knee replacement
This study tests whether taking vitamin C before and after knee replacement surgery can reduce long-term pain. You may be eligible if you are having knee replacement for osteoarthritis and are generally healthy.
Toronto, OntarioAges 18 years+ - NCT06125054RecruitingPhase 2
Ketamine and brain training for cocaine addiction
This trial tests whether a combination of ketamine (a medicine that may help the brain change) and neurofeedback training (a brain-exercise technique) can help people with cocaine addiction. The goal is to see if these treatments can improve brain flexibility and reduce cravings.
Zurich, Canton of ZurichAges 18–55 - NCT06126315RecruitingPhase 2/Phase 3
Testing acetyl-L-carnitine in early ALS
This study tests a supplement called acetyl-L-carnitine (ALCAR) to see if it can slow the progression of ALS. It is for people in the early stages of the disease who are already taking riluzole and have good lung and muscle function.
SydneyAges 18 years+ - NCT06127407RecruitingPhase 3
Ivosidenib for advanced chondrosarcoma with IDH1 mutation
This trial tests an experimental drug called ivosidenib for people with a specific type of bone cancer (chondrosarcoma) that has spread or can't be removed with surgery. The drug targets a genetic change (IDH1 mutation) found in some chondrosarcomas. It may help slow or stop tumor growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06128278RecruitingPhase 2
Equol supplement and blood vessel health in women
This study tests whether taking an Equol supplement (a soy-related compound) improves blood vessel function in postmenopausal women with and without chronic kidney disease (CKD). It could help women with or without early-stage CKD learn if this supplement supports heart health.
Aurora, ColoradoAges 50–69 - NCT06128252Recruiting
Taurine with chemotherapy and immunotherapy for gastric cancer
This trial tests whether adding taurine to standard chemo-immunotherapy before surgery helps treat locally advanced gastric cancer. It may be an option for patients whose tumors are PD-L1 positive and can be fully removed with surgery.
Wuhan, HubeiAges 18–75
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,245 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.