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
- NCT05484349RecruitingPhase 3
Tizanidine to prevent frequent migraine attacks
This Phase 3 trial tests tizanidine to help prevent migraine attacks. If you have frequent migraine with or without aura, it compares tizanidine against placebo while tracking your headaches in diaries.
Luzhou, SichuanAges 18–65 - NCT05487092Recruiting
Letrozole to help prevent endometrioma coming back after surgery
This study tests whether taking letrozole after laparoscopic ovarian cyst surgery can lower the chance that an endometrioma (a type of ovarian endometriosis cyst) comes back. It may help some people reduce recurrence after the cyst is removed.
Hong KongAges 18–45 - NCT05487391RecruitingPhase 3
QL1706 plus chemo after lung cancer surgery
This trial studies whether a study drug called QL1706 added to standard platinum chemotherapy can lower the chance of lung cancer coming back after surgery. It targets people with stage II to IIIB non-small cell lung cancer who have had their tumor fully removed.
ShanghaiAges 18 years+ - NCT05488431RecruitingPhase 2
Bempedoic acid to lower cholesterol and inflammation in HIV
This Phase 2 trial studies whether bempedoic acid can lower cholesterol and inflammation in people with HIV who are already on effective HIV medications. It may help reduce signs of artery inflammation that can contribute to heart and stroke risk.
Los Angeles, CaliforniaAges 40 years+ - NCT05488340RecruitingPhase 2
Study drug for hard-to-treat bladder infection in women
This Phase 2 trial tests LBP-EC01 to treat a bladder infection (UTI) caused by drug-resistant E. coli. It may help by targeting the specific bacteria that make UTIs harder to cure with common antibiotics.
Fresno, CaliforniaAges 18–75 - NCT05489289RecruitingPhase 3
AK104 to prevent HCC coming back after surgery
This trial tests whether AK104, taken after liver cancer surgery, can lower the chance that the cancer returns. It is for people with high risk of recurrence but no remaining cancer after surgery.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05500170Recruiting
Study of nicotinamide riboside for sleep and thinking
This trial tests whether nicotinamide riboside can improve sleep quality and help with thinking and memory. You may be invited if your sleep is poor and you do not show signs of dementia on a brief mental test.
Buffalo, New YorkAges 65–85 - NCT05501678RecruitingPhase 2
Diphenhydramine to help sleep in autistic children
This Phase 2 study tests whether diphenhydramine improves sleep in children with autism who have significant sleep problems. It requires sleep monitoring (watch data and sleep testing) and checking for side effects to see if the treatment is safe and helpful.
Stanford, CaliforniaAges 8–17 - NCT05507242RecruitingPhase 2
Drug that blocks TSLP to reduce COPD flare airway inflammation
This Phase 2 trial tests whether blocking TSLP can reduce inflammation in the airways of people with COPD, especially around flare-ups. If you often need prednisone and/or antibiotics for COPD exacerbations, this study may help determine a new treatment approach.
CopenhagenAges 40 years+ - NCT05508347RecruitingPhase 2
Testing a new antibody with chemo for locally advanced throat cancer
This study tests nituzumab (a targeted antibody) added to standard induction chemotherapy versus placebo plus chemotherapy. It aims to improve tumor control and safety for people with locally advanced nasopharyngeal (throat) cancer.
Chengdu, SichuanAges 18–70 - NCT05509257RecruitingEarly Phase 1
Naltrexone and brain scans for teens with eating disorders
This early study tests whether naltrexone (a prescription medicine) changes brain activity measured by MRI in teens and young adults with binge eating and/or purging. It may help researchers understand how the brain works in these eating disorders and whether this treatment could be helpful.
Kansas City, MissouriAges 13–21 - NCT05509153RecruitingPhase 2
N-acetylcysteine trial for people at risk of Huntington’s disease
This Phase 2 study tests whether NAC (a supplement-like medicine) can delay symptoms in people who carry the Huntington’s disease gene expansion but do not yet have clear movement symptoms. You may be asked to take NAC and attend regular visits, scans, and blood tests to see if it changes how likely you are to develop Huntington’s disease within the next 10 years.
Westmead, New South WalesAges 18 years+ - NCT05512234Recruiting
Probiotic drops to reduce crying in breastfed baby colic
This trial tests whether probiotic Limosilactobacillus reuteri (a specific friendly gut bacteria) can shorten how long a baby cries when they have colic. If you join, you’ll keep feeding as usual and track crying in a diary across several visits.
CorkAges 3 weeks–2 months - NCT05516472RecruitingEarly Phase 1
Fecal transplant study for people with frequent kidney stones
This trial tests whether transplanting donated stool microbiome (fecal microbiota transplantation) can change gut bacteria and help reduce harm from frequent kidney stones. You would provide urine and stool samples and have follow-up checks to watch for side effects.
Park City, UtahAges 18–69 - NCT05516862Recruiting
Find the best acupuncture for PTSD recovery
This trial tests different kinds of acupuncture to help people with PTSD (post-traumatic stress disorder). It aims to find which acupuncture approach leads to better recovery over the study period.
Nellis Air Force Base, NevadaAges 18–74 - NCT05517928Recruiting
Probiotic trial to help gut changes caused by acid-reducing pills
This study tests whether a probiotic called Lactobacillus rhamnosus GG can improve gut bacteria changes caused by proton pump inhibitors (acid-reducing medicines). It mainly involves people who are otherwise healthy and do not currently have ongoing stomach or gut symptoms.
Scottsdale, ArizonaAges 18 years+ - NCT05519254RecruitingPhase 3
Lactoferrin and lysozyme for lasting diarrhea in young children
This trial tests whether a supplement (lactoferrin and lysozyme) can help children who have long-term effects after diarrhea. It’s designed for children ages 6 to 24 months and checks whether improving gut recovery can reduce ongoing problems.
Homa BayAges 6 months–2 years - NCT05519111RecruitingPhase 2
Cannabinoid treatment to lower inflammation and sickle pain
This Phase 2 study tests a cannabinoid medicine (dronabinol) to reduce inflammation and pain related to sickle cell disease. It may help you have less pain that interferes with daily life if you meet the study requirements and can safely avoid cannabis during the study.
New York, New YorkAges 18 years+ - NCT05519475RecruitingPhase 2
Gene-silencing medicine trial for adults with MASH and liver scarring
This Phase 2 study tests a gene-silencing treatment to improve chronic liver disease called MASH, especially in people with certain genetic risk. You may be eligible if you have MASH with moderate-to-advanced scarring and specific test results, and if other liver causes and recent substance/alcohol issues don’t apply.
Chandler, ArizonaAges 18–75 - NCT05524649Recruiting
Probiotics for healthy newborns’ poop bacteria balance
This study looks at whether giving probiotics to healthy newborns changes the bacteria in their stool. It may help researchers understand early gut health, but it is only for babies who meet specific health and timing requirements.
Alcaldía Coyoacán, PueblaAges 1 day–3 months - NCT05526144RecruitingPhase 2
Thyroid hormone treatment for fatty liver in Veterans
This trial tests whether thyroid hormone can improve nonalcoholic steatohepatitis (fatty liver with inflammation) in Veterans. You may be asked to have a medically needed liver biopsy, and the study also focuses on safety in people with related conditions like diabetes and heart risks.
Columbia, MissouriAges 18–75 - NCT05529927RecruitingPhase 2
Dexamphetamine given long-acting to reduce cocaine use
This Phase 2 study tests whether a long-acting form of dexamphetamine can reduce cocaine use in people with moderate to severe cocaine use disorder. It also checks safety, including heart and mental health side effects, while you attend study visits regularly.
The HagueAges 18 years+ - NCT05538910Recruiting
Study brain links between depression and substance use
This study uses brain imaging and questionnaires to understand how substance use and depression are connected in the brain. It may help researchers identify biological patterns that could guide better treatments in the future.
Baltimore, MarylandAges 18–60 - NCT05539729RecruitingPhase 1
Testing vancomycin for newly diagnosed multiple sclerosis
This Phase 1 study tests whether the antibiotic vancomycin can be given safely to people with newly diagnosed multiple sclerosis (or related early stages). It mainly focuses on safety and side effects, and whether the approach is feasible for this group.
New York, New YorkAges 18–50
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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.