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
- NCT05540574RecruitingPhase 2
Zolpidem for sleep problems in autistic children
This Phase 2 study tests zolpidem (a sleep medicine) to help children with autism sleep better. It will check sleep changes using sleep testing and to confirm zolpidem is safe for this age group.
Stanford, CaliforniaAges 8–17 - NCT05543681RecruitingPhase 2
Study drug for agitation in Alzheimer’s dementia with caregiver support
This Phase 2 trial tests a study medicine to reduce “agitation” behaviors in people with Alzheimer’s dementia. You and your caregiver would complete required assessments and may need genetic and blood testing to check how the body handles the drug.
Maitland, FloridaAges 60 years+ - NCT05545605Recruiting
Sodium oligomannate to prevent thinking problems after stroke
This trial tests whether sodium oligomannate can help prevent or lessen memory and thinking problems that can happen after a first stroke. It may help people who are recently hospitalized for ischemic stroke and have mild cognitive decline risk.
Guangzhou, BaiyunAges 18–80 - NCT05546554RecruitingPhase 2
Suvorexant for sleep problems in teens with autism
This Phase 2 study tests whether suvorexant helps improve sleep in children and teens with autism who have significant sleep trouble. It may help reduce behaviors related to poor sleep by changing how the brain promotes sleep.
Stanford, CaliforniaAges 13–17 - NCT05550415RecruitingPhase 2
Simvastatin with chemotherapy for triple-negative breast cancer
This trial studies whether adding simvastatin (a cholesterol medicine) can slow or change how breast cancer spreads in triple-negative breast cancer. It compares outcomes while you receive planned chemotherapy, and you may or may not be taking simvastatin as part of the study treatment.
Jakarta Pusat, DKI JakartaAges 18 years+ - NCT05551793RecruitingPhase 2
Dupilumab for patchy hair loss with scalp inflammation
This Phase 2 trial tests dupilumab (an injection medicine) to regrow hair in people with alopecia areata, a condition where the immune system attacks hair follicles. It may help by reducing the immune-related inflammation linked to hair loss.
Irvine, CaliforniaAges 18 years+ - NCT05552755RecruitingPhase 1/Phase 2
Drug trial for FAP to reduce pre-cancer growth
This early-phase trial studies REC-4881 in adults with familial adenomatous polyposis (FAP), a condition that causes many colon/rectum and duodenal polyps. It aims to see whether the treatment can safely help control or shrink polyp growth in people who have had bowel surgery.
Scottsdale, ArizonaAges 18 years+ - NCT05553652Recruiting
A probiotic test for repeat bladder infections
This trial studies ASTARTE™, a probiotic, to see if it can reduce repeat urinary tract infections (UTIs). It may help people who get UTIs often by testing whether the supplement lowers how frequently they come back.
Hvidovre, CopenhagenAges 18–40 - NCT05555576Recruiting
Vitamin C to reduce opioid use after an ER visit
This trial tests whether taking vitamin C after an emergency room visit for a new, short-term muscle or joint pain can lower how many opioid pain pills you use. It may help by reducing opioid consumption while you recover.
Montreal, QuebecAges 18 years+ - NCT05557448RecruitingPhase 2
N-Acetylcysteine treatment for serious acetaminophen overdose
This Phase 2 trial studies whether TYNADOTE® can treat people who have taken a harmful acetaminophen (Tylenol) overdose while checking safety. It may be considered if your overdose is high enough to put you at risk for liver injury and you can follow the treatment and follow-up visits.
Taipei, Beitou DistrictAges 20 years+ - NCT05559671RecruitingPhase 4
Shingles vaccine safety study for people with lupus
This Phase 4 study checks how safe a shingles vaccine (Shingrix, a non-live vaccine) is for adults with lupus. You might be invited if you have lupus and haven’t had certain shingles or chickenpox-related vaccines recently, and if your lupus symptoms and immune health meet the study rules.
New York, New YorkAges 18–90 - NCT05562167RecruitingPhase 2
Inorganic nitrate plus exercise for heart failure performance
This Phase 2 study tests whether taking inorganic nitrate can improve exercise ability and heart-function symptoms in people with heart failure with reduced pumping. It also checks whether the treatment is safe when combined with an exercise program.
St Louis, MissouriAges 19–79 - NCT05562609RecruitingPhase 3
Tranexamic acid to reduce heavy bleeding after childbirth
This trial tests whether tranexamic acid (a medicine that helps blood clot) can prevent heavy bleeding after delivery in women who are at higher risk. If it works, it may lower the chance of serious postpartum bleeding and related complications.
MbeyaAges 18 years+ - NCT05568498RecruitingPhase 2
Probiotic trial for depression in Parkinson’s disease
This Phase 2 study tests whether taking probiotics can improve depression and mood symptoms in people with Parkinson’s disease. It’s meant for those with mild to moderate depression and stable Parkinson’s and mood treatments.
Vancouver, British ColumbiaAges 40–80 - NCT05569382RecruitingPhase 4
Testing bisoprolol and verapamil in hypertrophic heart disease
This study tests whether two common heart medicines, bisoprolol and verapamil, improve symptoms in adults with non-obstructive hypertrophic cardiomyopathy. It may help you and your care team understand which medicine works better for symptom control and heart function.
Aarhus NAges 18 years+ - NCT05570253RecruitingPhase 2
SDX-7320 plus eribulin for metastatic triple-negative breast cancer
This Phase 2 study tests whether adding SDX-7320 to eribulin can work better for people with triple-negative metastatic breast cancer. It focuses on patients who have had prior chemotherapy and who also show signs of metabolic imbalance such as higher body weight or higher HbA1c.
Miami, FloridaAges 18 years+ - NCT05570812RecruitingPhase 2
Pregnenolone to improve depressed mood in people with HIV
This Phase 2 trial tests a brain-acting steroid called pregnenolone to help reduce depressed mood. It studies whether it can improve mood in adults with HIV who are already on HIV treatment and still have depression symptoms.
Boston, MassachusettsAges 18–85 - NCT05575882Recruiting
Skin cream trial to prevent relapses in very dry eczema skin
This trial tests whether a cosmetic cream can reduce eczema flare-ups and is comfortable/safe to use on very dry, irritated, eczema-prone skin. It’s mainly for children who have had recent flare-ups and moderate eczema severity.
Ciudad Autónoma de Buenos Aire, Ciudad Autónoma de Buenos AireAges 6 months–15 years - NCT05577754RecruitingPhase 2
Trial tests alpelisib for MCAP with PIK3CA mutations
This Phase 2 study tests alpelisib in children and adults with MCAP, a condition caused by a specific PIK3CA gene mutation. The goal is to see if the treatment is effective and safe, while carefully monitoring blood sugar and organ function.
AmiensAges 2–40 - NCT05579392Recruiting
Bright light therapy for gut inflammation in Crohn’s or colitis
This trial studies whether daily bright light can improve gut barrier “leakiness” and reduce inflammation in adults with Crohn’s disease or ulcerative colitis. It compares bright light versus dim light in a crossover design, meaning you may receive both.
Chicago, IllinoisAges 18 years+ - NCT05580666RecruitingPhase 3
Lower death risk by adding azithromycin to HIV treatment
This Phase 3 study tests whether adding azithromycin helps people with advanced HIV disease live longer. You would start (or restart or adjust) HIV treatment within 4 weeks and may also receive azithromycin or a comparison approach to see if outcomes improve.
AbidjanAges 18 years+ - NCT05583773RecruitingPhase 4
Herbal medicine for heart failure with lower pumping strength
This trial tests SHengXIaN-QuYu decoction (an herbal treatment) in people with symptomatic heart failure and reduced pumping function. It looks to see whether the herbal formula is safe and helpful for heart failure symptoms and heart function.
Beijing, Beijing MunicipalityAges 18 years+ - NCT05584007RecruitingPhase 3
Choosing the best antibiotic length for leg cellulitis
This Phase 3 study compares 5 days versus 7 days of antibiotic treatment for new leg cellulitis (skin infection). It may help you get the right treatment duration while keeping side effects and recovery in mind.
SouthamptonAges 18 years+ - NCT05588934Recruiting
Testing the best daily caffeine dose for sleep and alertness
This study compares an adjusted caffeine plan versus a typical caffeine dose to see how it affects your sleep timing and daytime alertness. It may help find a caffeine amount that supports wakefulness without disrupting sleep.
Tucson, ArizonaAges 18–39
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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.