Clinical trials
Placebo - Control clinical trials
Below are recruiting placebo - control clinical trials, each written for real people, not researchers. We’re tracking 3,902 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03014687RecruitingPhase 4
Preventing sinus symptoms after pituitary surgery with antibiotics
This trial studies whether taking antibiotic medicine by mouth after endoscopic pituitary surgery can reduce post-surgery sinus and nasal symptoms. It may help people recover more comfortably and improve specific nasal outcome scores.
Phoenix, ArizonaAges 18–84 - NCT03919461RecruitingPhase 2
Preventing colon and rectal cancer spread after surgery
This Phase 2 study tests medicines given around the time of colon or rectal cancer surgery to help lower the chance the cancer will later spread to other parts of the body. If you are planned for curative (potentially curable) surgery and have no signs of spread yet, the trial may help prevent future metastases.
AfulaAges 20–80 - NCT03949049RecruitingPhase 3
Citi-coline for babies who had low oxygen at birth
This trial studies whether a medicine called citicoline can protect the brain in newborns who had low oxygen (hypoxia). It may help reduce brain injury in babies, but it does not include babies with a specific severe brain condition.
CairoAges Up to 1 month - NCT03965988RecruitingPhase 3
Omega-3 oil to help children’s breath-holding spells
This trial studies whether docosahexaenoic acid (an omega-3 fatty acid found in fish oil) can reduce breath-holding spells in children who have just been diagnosed. If it works, it could help lessen how often these spells happen and how severe they are.
TantaAges 1 month–5 years - NCT03966170RecruitingPhase 3
CitiColine to help protect the brain in preterm babies
This Phase 3 study tests whether citicoline can act as a protective treatment for the brain in babies born early and needing breathing support. It may help reduce risks tied to prematurity and breathing complications by supporting the brain’s health.
TantaAges Up to 1 month - NCT02423395RecruitingPhase 3
Orphenadrine for muscle cramps in people with cirrhosis
This trial tests whether orphenadrine (a medication used to reduce muscle cramping) can lessen muscle cramps in people who have cirrhosis of the liver. It may help if your cramps happen often, but you must avoid certain medication conflicts and health situations.
TantaAges Any age - NCT04494724RecruitingPhase 2
Clazakizumab for hospitalized COVID-19 patients
This trial tests a drug called clazakizumab, which may reduce harmful inflammation in the lungs of people hospitalized with COVID-19. It aims to see if the drug can help patients recover better than a placebo.
Houston, TexasAges 18 years+ - NCT04442191RecruitingPhase 2
Convalescent plasma for hospitalized COVID-19 patients over 40
This trial tests whether donated “recovered patient” plasma (antibodies from people who had COVID-19) can improve outcomes for people hospitalized with COVID-19. It focuses on patients early in their illness who need a small amount of oxygen.
Chicago, IllinoisAges 40 years+ - NCT04601116RecruitingPhase 3
Atorvastatin for hormone-positive breast cancer to prevent recurrence
This Phase 3 study tests whether taking atorvastatin (a cholesterol-lowering medicine) can improve outcomes for women with estrogen-receptor–positive breast cancer. It may help by affecting cancer-related pathways and reducing risk of recurrence or progression.
AarhusAges 18 years+ - NCT04766177RecruitingPhase 3
Bumetanide for children with autism symptoms
This trial tests whether bumetanide can improve autism symptoms in children. It is for children aged 3 to 12 with autism diagnosed using a standard symptom rating scale.
TantaAges 3–12 - NCT03136341RecruitingPhase 4
Dysport injections for task-specific hand tremor
This study tests whether injections of botulinum toxin (Dysport) can help people whose hand tremor only happens when they try to do specific tasks, like pouring a drink or eating. If you qualify, you would receive injections and be monitored to see if your tremor improves.
New York, New YorkAges 18–80 - NCT03989323Recruiting
Register to track cancer immune therapy and side effects
This study sets up a real-world patient database to follow people starting cancer immunotherapy and record immune-related side effects. You may help doctors better understand who gets these side effects and how they change over time.
BronAges 18 years+ - NCT04685148RecruitingPhase 1/Phase 2
Study of mental health treatment during pregnancy
This trial studies a treatment aimed at improving maternal mental health during pregnancy. It focuses on people who have had depression around pregnancy before, and checks whether the approach is safe and helpful for them.
CopenhagenAges 18–45 - NCT04316364RecruitingPhase 3
New immunotherapy plus chemo for resectable lung cancer
This Phase 3 trial studies whether an immunotherapy drug (SHR-1316) added to standard chemotherapy helps people live longer or delay cancer returning after surgery. It focuses on people with resectable non-small cell lung cancer (NSCLC) that has not been treated before.
Beijing, Beijing MunicipalityAges 18–70 - NCT04846777Recruiting
Phone-based support program for generalized anxiety
This study tests a brief treatment approach delivered through a smartphone app (or phone-based program) for people with generalized anxiety disorder. It may help you manage anxiety while also contributing to research on easier ways to get mental health support.
University Park, PennsylvaniaAges 18 years+ - NCT05353504Recruiting
Testing how gut changes affect food choices
This study looks at whether interventions that change your gut bacteria can change how you decide what to eat. It may help researchers understand the gut–brain link behind eating behavior.
LeipzigAges 18–60 - NCT05245591RecruitingPhase 2/Phase 3
Pentosan for bladder irritation after pelvic radiation
This trial studies whether pentosan polysulfate sodium can reduce bladder bleeding (hematuria) and urinary symptoms caused by radiation cystitis after pelvic cancer radiation. It may help people who are still having these bladder problems more than 6 months after radiation.
TaipeiAges 20 years+ - NCT03082755RecruitingPhase 4
Study sleep agitation and restless legs in Alzheimer’s patients
This trial studies treatment for troubling nighttime restlessness and agitation in people with Alzheimer’s disease. It may help improve sleep and nighttime comfort and reduce nighttime behavior problems.
Austin, TexasAges 55 years+ - NCT04951635RecruitingPhase 3
Almonertinib after chemoradiation for stage III lung cancer
This Phase 3 trial tests whether almonertinib given after standard chemoradiation can help people with stage III, non-surgical lung cancer live longer and/or control the cancer. It is for tumors with specific EGFR mutations linked to sensitivity to EGFR-targeted medicines.
Ji'nan, ShandongAges 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 - NCT04637438Recruiting
Fecal transplant for Crohn’s around the small and large bowel
This trial studies fecal microbiota transplantation (a transplant of beneficial gut bacteria from a donor) to help people with Crohn’s disease that is causing narrowing (strictures) and/or abnormal tunnels (fistulas) and who need bowel surgery. You may qualify if you’re an adult, planning ileal/ileocecal surgery, and can complete the colonoscopy while not on certain gut-altering medicines.
TampereAges 18–120 - NCT05698862Recruiting
Study how gut bacteria affect brain and behavior
This study looks at how gut bacteria may influence brain function and behavior, through a chemical called GABA. It may help researchers understand brain–gut links, though it is not yet a treatment trial.
ReadingAges 18–50 - NCT04436081RecruitingPhase 2
CBD oil without THC for agitation in Alzheimer’s dementia
This trial studies whether a THC-free CBD oil softgel can reduce agitation in people with Alzheimer’s-related dementia. It compares CBD to a control to see if it improves difficult behaviors and is safe over the study period.
Norfolk, VirginiaAges 50–90 - NCT05649605Recruiting
Testing early response to gender-affirming hormone treatment
This study looks at how people respond early after starting gender-confirming hormones. It may help doctors understand what changes happen soon after treatment starts and how to manage it safely.
StockholmAges 18–99
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Common questions
- Are there clinical trials for placebo - control?
- Yes. Clin2 currently lists 3,902 recruiting placebo - control 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 - control 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 - control 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.