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
- NCT07641634RecruitingPhase 1/Phase 2
Testing PRO-203 for active systemic sclerosis
This trial tests a new investigational medicine called PRO-203 for people with systemic sclerosis (scleroderma). It aims to see if the medicine can help control active disease that hasn't responded to other treatments.
Melbourne, VictoriaAges 18–65 - NCT07641179RecruitingPhase 2
Testing MAR002 for Acromegaly (a Pituitary Tumor Condition)
This study tests a new drug called MAR002 to treat acromegaly, a hormone disorder caused by a pituitary tumor that makes too much growth hormone. The drug is designed to help lower hormone levels and improve symptoms.
Phoenix, ArizonaAges 18–75 - NCT07644052RecruitingPhase 3
Study of a new medicine to ease cannabis withdrawal
This study tests a new medicine, PP-01, to help adults who use cannabis daily and want to quit. It aims to reduce withdrawal symptoms like anxiety, irritability, and sleep problems during the first week after stopping.
Little Rock, ArkansasAges 18–55 - NCT07640451RecruitingPhase 2
HRS-9821 inhalation treatment for moderate to severe COPD
This trial tests whether an inhaled medication called HRS-9821 can help people with moderate to severe COPD (chronic obstructive pulmonary disease) breathe better and reduce symptoms. You inhale the medication, and researchers will measure how well your lungs work and how you feel over time.
Shanghai, Shanghai MunicipalityAges 40–80 - NCT07640425RecruitingPhase 1/Phase 2
Testing a new collagenase injection for Dupuytren's contracture
This study tests whether a new injectable enzyme called CNT201 can safely and effectively treat Dupuytren's contracture—a condition where fingers curl and can't straighten. The injection aims to break down the thick tissue cords causing the problem, without surgery.
Kippa-Ring, QueenslandAges 18–75 - NCT07641517RecruitingPhase 2
Testing LY4065967 for chronic knee osteoarthritis pain
This study tests an experimental drug called LY4065967 to see if it can help reduce pain from osteoarthritis in the knee. You'll be in the trial for several months, with regular check-ins and pain assessments.
Birmingham, AlabamaAges 40 years+ - NCT07644364RecruitingPhase 1
Blood Pressure Medication Study for Japanese Adults
This early-stage trial tests a new blood pressure medication called HJB647 in Japanese adults with elevated or high blood pressure. The study aims to see if the drug is safe and how the body handles it.
Sumida Ku, TokyoAges 18–60 - NCT07645924RecruitingPhase 3
Elismetrep for fast relief of migraine attacks
This trial tests a new oral medication called elismetrep (K-304) for quickly stopping migraine pain and other symptoms. If you have regular migraines, this could offer a new option that works fast when a migraine starts.
Birmingham, AlabamaAges 18–75 - NCT05272579RecruitingEarly Phase 1
Phage treatment to help gut development in very preterm babies
This early-phase trial tests whether giving a specific bacteria-fighting treatment (called bacteriophage) through the gut can help preterm babies’ intestinal development mature faster. It may help reduce early gut-related problems, but the study is mainly to check safety and early effects.
CopenhagenAges Any age - NCT04925414RecruitingPhase 4
Testing high-flow oxygen for migraine in the emergency room
This trial looks at whether breathing high-flow oxygen in the emergency department can help relieve migraine-like headaches. You may qualify if you are 18+ and are admitted to the ER for a migraine that fits standard diagnostic rules.
NiceAges 18 years+ - NCT07644000Recruiting
Hydrogen inhalation and exercise response in healthy women
This study tests whether breathing in molecular hydrogen before exercise affects how your body uses energy during physical activity. Researchers want to see if this simple intervention might improve exercise performance or recovery in healthy women.
OlomoucAges 18–30 - NCT07639177RecruitingPhase 2
Fecal Microbiota Transplant for Hard-to-Treat Rheumatoid Arthritis
This trial tests whether transferring healthy gut bacteria from a donor to patients with rheumatoid arthritis that hasn't improved on standard medications can reduce joint pain and swelling. The goal is to see if rebalancing the gut microbiome (the community of bacteria in your intestines) helps control inflammation.
Beijing, Beijing MunicipalityAges 18–65 - NCT07643558Recruiting
Fish oil and weight training for cancer patients' muscle health
This study tests whether taking fish oil supplements combined with progressive weight training exercises can help preserve or build muscle strength in cancer patients undergoing treatment. The goal is to help you maintain physical function and quality of life during cancer care.
Erlangen, BavariaAges 18 years+ - NCT07638865Recruiting
CoQ10 supplement for enlarged prostate symptoms
This trial tests whether a natural supplement called CoQ10 (Ralivia) can help reduce urinary symptoms caused by an enlarged prostate. You'll take the supplement and have your symptoms monitored over time.
ThessalonikiAges 50–80 - NCT07641075Recruiting
High-Dose Vitamin D Effects in Experienced Athletes
This study tests whether high-dose vitamin D supplements improve athletic performance, brain function, and body composition in experienced athletes. Researchers will measure hormones, muscle strength, thinking ability, and muscle mass over time.
Katowice, Mikołowska 72aAges 17–60 - NCT07642869Recruiting
Vitamins and minerals for healthy aging in middle-aged adults
This study tests whether taking a daily multivitamin and mineral supplement helps middle-aged adults stay healthier and more active as they age. Researchers will track changes in your fitness, energy, and overall wellness over the study period.
La Jolla, CaliforniaAges 40–60 - NCT07641335Recruiting
Caffeine's Effects on Chess Playing and Thinking Skills
This study tests whether caffeine helps professional chess players think more clearly and play better. Researchers will measure your chess performance and mental focus after you take caffeine or a placebo.
St Louis, MissouriAges 18–50 - NCT03944876RecruitingPhase 3
Botulinum toxin to block a facial nerve for chronic cluster headaches
This trial tests whether injections of botulinum toxin type A can reduce frequent, severe cluster headache attacks by targeting a facial nerve area. It’s for people whose cluster headaches have not responded well—or have caused side effects—to standard preventive treatments.
HamburgAges 18–85 - NCT07630545RecruitingPhase 1
Testing a new drug for Parkinson's disease
This study tests an experimental drug, MTX325, in people with Parkinson's disease. The goal is to see if it is safe and how the body processes it, which may lead to new treatment options.
AdelaideAges 18–75 - NCT07630506RecruitingPhase 2
Folinic Acid for Autism in Children Ages 3–10
This study tests whether folinic acid (a type of B vitamin) can help improve symptoms of autism in children. Researchers want to see if this supplement, combined with your child's current treatments, might make a difference.
Singapore, SingaporeAges 3–10 - NCT07636811RecruitingPhase 2
Mivelsiran for Early Alzheimer's in Down Syndrome
This trial tests a new drug called mivelsiran designed to slow early-stage Alzheimer's disease in adults with Down syndrome. The drug works by targeting amyloid, a protein that builds up in the brain and causes cognitive decline.
Maitland, FloridaAges 40–55 - NCT07635563RecruitingPhase 2
Sleep Apnea Treatment with Dronabinol and Acetazolamide
This study tests a combination medication (dronabinol and acetazolamide) to treat obstructive sleep apnea in people who cannot tolerate or use CPAP machines. The goal is to find the right dose that safely reduces breathing interruptions during sleep.
Chula Vista, CaliforniaAges 18–65 - NCT07637981RecruitingPhase 2
Safety Study of DX243 for Hearing Loss in Noise
This study tests a new medicine (DX243) to see if it is safe and well-tolerated in people with hearing difficulties, especially trouble hearing speech in noisy environments. The goal is to understand how the body processes this medicine and whether it might help improve hearing.
Liège, LiègeAges 18–75 - NCT07629999RecruitingPhase 1
Safety study of experimental drug BMS-986533 in healthy people
This early-stage study tests how a new experimental drug (BMS-986533) is processed and tolerated by healthy volunteers. Researchers will also check how food and stomach acid affect the drug, and whether it interacts with other medications.
Lincoln, NebraskaAges 18–55
Hear when a new Placebo trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
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.