Clinical trials
Placebo - Control clinical trials
Below are recruiting placebo - control clinical trials, each written for real people, not researchers. We’re tracking 3,962 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT03582293RecruitingPhase 3
Tranexamic acid to prevent worsening chronic brain bleed
This Phase 3 study tests whether tranexamic acid (a medicine that helps blood clot) can stop a chronic subdural hematoma from getting worse. It’s for people diagnosed by CT who are being treated without surgery at first.
AmsterdamAges 50 years+ - NCT03621553RecruitingPhase 4
Vitamin D balance study in people with sarcoidosis
This Phase 4 study looks at how your body keeps vitamin D levels balanced in sarcoidosis. It may help researchers understand what affects calcium and vitamin D in sarcoidosis, and guide safer care.
Dallas, TexasAges 21 years+ - NCT03667846RecruitingPhase 2
Biomarker-guided treatment for drinking and PTSD symptoms
This Phase 2 study tests whether blood/brain “biomarkers” can help choose a treatment plan for people who have alcohol use disorder and PTSD. The goal is to improve outcomes related to drinking and PTSD symptoms compared with a standard approach.
New York, New YorkAges 18–70 - 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 - NCT03713424RecruitingPhase 2
Brain scan study of an antibiotic for drug addiction
This study uses an MRI brain scan to see how taking clavulanic acid affects brain activity related to drug addiction. It may help researchers understand whether this medicine could change how addiction-related cues affect the brain.
Columbia, MissouriAges 18–65 - NCT03762395RecruitingPhase 2
Study of anti-inflammatory asthma molecules in adults
This Phase 2 study tests anti-inflammatory lipid mediators in people with asthma. You may be eligible if your asthma is not well controlled despite regular inhaler use and you meet the specific lung function and health criteria.
Aurora, ColoradoAges 18–65 - NCT03769766RecruitingPhase 3
Curcumin to help keep low-risk prostate cancer from worsening
This study tests whether curcumin (a supplement made from turmeric) can prevent low-risk prostate cancer from progressing while you stay on active surveillance. If you qualify, you would take curcumin and be monitored closely with regular checkups.
Dallas, TexasAges 40–89 - NCT03773003Recruiting
Study of fatigue caused by cancer or chronic fatigue
This study looks at why fatigue happens in people with cancer and, in some cases, in people with chronic fatigue conditions. It may help researchers better understand the causes of fatigue so future treatments can be improved.
Homburg, SaarlandAges 18–80 - NCT03775837Recruiting
Ginseng extract to improve abnormal liver blood tests
This trial studies whether a Panax ginseng extract can improve liver-related blood test results in adults. It may help people with mildly to moderately elevated liver enzymes, while carefully excluding people with other liver causes.
YangsanAges 19–75 - NCT03783416RecruitingPhase 1
Ixazomib safety study for people with multiple sclerosis
This early-phase study tests how safe ixazomib is for people with multiple sclerosis (MS). It focuses on targeting certain immune cells in MS and checks whether the treatment can be given safely.
London, Greater LondonAges 18–65 - NCT03817502RecruitingPhase 3
Cariprazine test for teens with schizophrenia
This trial tests whether cariprazine works and is safe for teens aged 13 to 17 with schizophrenia. It may help if your symptoms are still moderate to severe despite current care.
Culver City, CaliforniaAges 13–17 - NCT03819608Recruiting
Brain stimulation and rehab after mild concussion with PTSD or cognitive issues
This trial studies whether brain stimulation plus targeted brain rehabilitation can improve symptoms after a mild concussion (mTBI). You may be invited if your concussion happened at least 3 months ago and your symptoms are affecting thinking or mood, with or without PTSD.
Chicago, IllinoisAges 18–80 - NCT03821623RecruitingPhase 2
Vitamin-like nicotinamide riboside for higher blood pressure
This trial tests whether nicotinamide riboside can improve elevated blood pressure and blood vessel stiffness in middle-aged and older adults. You may be randomly assigned to take the study medicine or not, and the team will check your heart/blood vessel measurements over time.
Boulder, ColoradoAges 50 years+ - NCT03822949Recruiting
Bright light exposure during heart surgery for better recovery
This trial tests whether using bright light at the right time during and after heart surgery helps patients recover more comfortably. It focuses on people having a specific type of open-heart surgery and checks certain heart rhythm and safety factors.
Denver, ColoradoAges 18–90 - NCT03835767RecruitingPhase 2
Predicting food allergy from blood IgE levels in eczema patients
This study looks for blood test patterns that may predict whether a child with eczema (atopic dermatitis) is likely to have a food allergy. If you join, you may do supervised oral food challenges with a placebo and the suspected foods to see what triggers symptoms.
Bethesda, MarylandAges 3–21 - NCT03843463RecruitingPhase 2
Escitalopram plus language therapy after left stroke
This trial tests whether the antidepressant medicine escitalopram, along with language therapy, can improve language skills after a recent stroke that affected the left side of the brain. It may help some people with stroke-related aphasia (language difficulty) regain words and communication.
Baltimore, MarylandAges 18–99 - NCT03851627RecruitingPhase 4
Testosterone for fatty liver in overweight men with diabetes
This trial compares testosterone undecanoate versus a placebo (inactive pill) to see if it lowers fat in the liver measured by MRI. It focuses on overweight or obese men who have prediabetes or type 2 diabetes and low testosterone confirmed by blood tests.
ViennaAges 18–75 - NCT03860233RecruitingPhase 1
Oxytocin added to CPAP for obstructive sleep apnea
This early study tests whether adding oxytocin to your usual CPAP treatment improves obstructive sleep apnea. It may help see if oxytocin changes how well CPAP works or how people feel while using it.
Washington D.C., District of ColumbiaAges 18 years+ - NCT03866408RecruitingEarly Phase 1
Testing how insulin affects fat breakdown proteins
This early study looks at how insulin changes the body’s fat breakdown and related proteins. You might join if you’re within a certain body-weight range and can safely take the study medication.
Rochester, MinnesotaAges 18–55 - NCT03865290RecruitingPhase 2
Ondansetron for stomach nerve and motion problems in diabetes
This trial tests whether ondansetron can improve stomach “sensorimotor” problems—how the gut senses food and moves it—especially in people with diabetes and troubling indigestion. It may help reduce symptoms like early fullness, nausea, and discomfort after eating.
Rochester, MinnesotaAges 18–75 - NCT03875378RecruitingPhase 2
Transdermal estrogen treatment for anorexia-related bone loss
This trial studies whether estrogen delivered through the skin can help improve bone health in women with anorexia nervosa. It may be considered if your body weight is low and you have signs of bone thinning.
Pittsburgh, PennsylvaniaAges 19–45 - NCT03888924RecruitingPhase 2
BCG vaccine for people with radiologically isolated syndrome
This trial tests whether a BCG vaccine can help people who have radiologically isolated syndrome (RIS), a condition where MRI scans show signs of possible multiple sclerosis before symptoms develop. The study aims to see if vaccination is safe and can change disease behavior over time.
RomeAges 18 years+ - NCT03885245RecruitingPhase 2
L-citrulline supplement for overweight adults with later-onset asthma
This Phase 2 trial tests whether adding L-citrulline can improve asthma control in overweight adults whose asthma started later in life. It compares your asthma symptoms and lung testing results to see if the supplement helps when asthma is already being treated.
Durham, North CarolinaAges 18–65 - NCT03910010Recruiting
Brain scan study to study pain-related body signals in fibromyalgia
This study uses MRI brain scans to look for body “signals” (biomarkers) that may relate to chronic pain, including fibromyalgia. It may help researchers better understand what’s going on in the brain for people with long-term pain.
Halifax, Nova ScotiaAges 18–75
Hear when a new Placebo - Control 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 - control?
- Yes. Clin2 currently lists 3,962 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.