Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,154 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- 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+ - NCT05478720RecruitingPhase 1/Phase 2
Tested medicine for children with cerebral malaria
This early-stage study tests how a medicine (involving ondansetron and ceftriaxone) works in people with malaria. It especially focuses on children with cerebral malaria to see if it can improve safety and early effectiveness.
BlantyreAges 1 year+ - 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 - NCT05469854RecruitingPhase 1
Study of linaprazan glurate in healthy volunteers
This study tests a new drug called linaprazan glurate in healthy adults aged 18 to 65. It looks at how the drug moves through your body and if it affects your heart rhythm.
UppsalaAges 18–65 - NCT05485961RecruitingPhase 2/Phase 3
Clazakizumab for kidney failure patients on dialysis
This study tests an experimental drug called clazakizumab (CSL300) to see if it can reduce inflammation and lower the risk of heart problems in people with kidney failure who are on dialysis. It may help if you have diabetes or heart disease and have high inflammation levels.
Decatur, AlabamaAges 18 years+ - NCT05478707RecruitingPhase 2
Treating small blood vessel problems in type 1 diabetes
This study tests whether two different treatment strategies can improve the function of the tiny blood vessels in people with type 1 diabetes. It aims to find a way to prevent or reduce diabetes-related complications.
Orlando, FloridaAges 18–40 - 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 - NCT05473520RecruitingPhase 3
Doxycycline add-on therapy for lung improvement in tuberculosis
This Phase 3 trial tests whether adding doxycycline to standard TB medicine can improve lung function and reduce lung tissue damage. It aims to see if patients recover better by targeting the lung response to TB.
Kota Kinabalu, SabahAges 21 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+ - NCT05474989RecruitingPhase 2
LSD-assisted therapy for alcohol use disorder
This Phase 2 trial studies whether an LSD treatment approach, combined with study procedures, can help people with moderate-to-severe alcohol use disorder cut down or stop drinking. It may help reset patterns around cravings and drinking, but it also requires careful safety screening.
BaselAges 25 years+ - NCT05498116RecruitingPhase 4
Montelukast to improve kidney and blood vessel function in type 1 diabetes
This trial tests whether montelukast, a medicine commonly used for allergies, can improve kidney health and blood vessel function in adults with long-term type 1 diabetes. You may join a treatment group and have kidney and circulation measurements taken over the study period.
Aurora, ColoradoAges 18–80 - NCT05461157Enrolling by invitation
Silicone ointment before head or neck surgery to improve healing
This trial studies whether applying a silicone ointment before and around the time of planned head or neck surgery can improve how your wound heals after surgery. It may help reduce problems like poor scar healing, but you can only join if you meet specific medical and safety requirements.
New Haven, ConnecticutAges 18 years+ - 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 - NCT05483465RecruitingPhase 4
NAD supplement trial for brain blood vessel health in aging
This trial studies whether taking an NAD supplement can support brain blood vessel health as people age. Participants will be tested for brain and health changes and may help researchers understand how to keep the brain’s blood vessels healthier over time.
Oklahoma City, OklahomaAges 60–85 - NCT03701581RecruitingPhase 2/Phase 3
4-aminopyridine to help erections after prostate nerve surgery
This trial tests whether a medicine called 4-aminopyridine (4AP) can help recover or protect erectile function after “nerve-sparing” prostate surgery. It’s for men with early-stage, non-spread prostate cancer who are scheduled for robotic prostate surgery and have good baseline erections.
Tucson, ArizonaAges 45–75 - NCT02915198RecruitingPhase 4
Metformin for prediabetes to reduce heart and blood-vessel events
This trial tests whether taking metformin in people with prediabetes can lower the chance of future heart attack, stroke, or other blood-vessel problems. You may be a good fit if you have prediabetes plus existing cardiovascular disease or significant blood-vessel disease.
Phoenix, ArizonaAges 18 years+ - NCT04722978RecruitingPhase 3
Chemo plus moxifloxacin for metastatic triple-negative breast cancer
This trial tests whether adding moxifloxacin (an antibiotic) to standard chemotherapy helps people with metastatic triple-negative breast cancer live longer or respond better. You may qualify if your cancer has the right lab markers and you haven’t had treatment for metastatic disease yet.
Guangzhou, GuangdongAges 18–70 - NCT05084196RecruitingPhase 3
Melatonin to help prevent kidney damage from vancomycin
This Phase 3 study tests whether melatonin can help protect the kidneys in people who are starting or continuing vancomycin, an antibiotic that can sometimes affect kidney function. If you qualify, you would take melatonin as an added prevention step while you’re on vancomycin.
New Brunswick, New JerseyAges 18–75 - NCT05432804RecruitingPhase 1/Phase 2
Selinexor added to temozolomide for recurring brain glioblastoma
This trial studies whether adding selinexor to the standard chemotherapy temozolomide (with radiation) can better treat glioblastoma that has come back after prior treatment. If you meet specific tumor, health, and lab requirements, the goal is to slow tumor growth or improve symptoms.
Phoenix, ArizonaAges 18 years+ - NCT05440422RecruitingPhase 2
Anifrolumab for heart health in lupus patients
This study tests whether anifrolumab, a drug that targets the immune system, can improve markers of blood vessel health in people with lupus. It may help reduce the risk of heart problems associated with lupus.
Bethesda, MarylandAges 18–80 - NCT05448365Recruiting
Vitamins and plant compounds for uterine fibroid symptoms
This trial studies whether a combination of vitamin D, epigallocatechin gallate (a plant compound), D-chiro-inositol, and vitamin B6 can improve symptoms from uterine fibroids. It may help by reducing symptoms such as heavy or irregular bleeding and pelvic pain in people who can undergo surgery.
Francavilla Fontana, ApuliaAges 30–40 - NCT05421858RecruitingPhase 3
Study drug for adults with bloodstream or deep Candida infection
This Phase 3 trial tests fosmanogepix to treat adults with candidemia (Candida in the bloodstream) and/or invasive candidiasis (a deep Candida infection). It looks at whether the medicine is effective and safe, and whether it helps the infection improve when doctors also manage the infection source.
Birmingham, AlabamaAges 18 years+ - NCT05441280RecruitingPhase 2
Pimavanserin to improve sleep in veterans with PTSD
This Phase 2 trial studies pimavanserin, a medicine meant to improve insomnia, in veterans who also have PTSD. It may help reduce problems with falling asleep, staying asleep, or waking too early that affect daytime functioning.
Houston, TexasAges 18–64 - NCT05418244RecruitingPhase 2/Phase 3
Inhaled isopropyl alcohol for nausea and vomiting relief
This trial tests whether breathing in a small amount of isopropyl alcohol through the nose can reduce nausea or vomiting. It may help people who still have bothersome nausea even with usual care, by using a non-oral approach to start feeling better.
Buffalo, New YorkAges 7–17
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,154 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.