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
- NCT03188796RecruitingPhase 3
High-dose vitamin D for ICU patients with low vitamin D
This trial tests whether giving a high dose of vitamin D3 can reduce death within 28 days for critically ill adults in the ICU who have very low vitamin D levels. It may help by correcting vitamin D deficiency, which the study team thinks could affect outcomes in serious illness.
EnzenbachAges 18–100 - NCT03211793RecruitingPhase 1/Phase 2
Cell treatment for painful hand sores in systemic sclerosis
This trial tests a cell-based treatment (mesenchymal stromal cells) to help heal painful finger/toe ulcers in people with systemic sclerosis. It is for ulcers that did not improve after a specific IV medicine called prostacyclins.
UtrechtAges 18 years+ - NCT03228732RecruitingEarly Phase 1
Fluoxetine and/or DHEA in people with type 1 diabetes
This early-stage study tests whether the medicines fluoxetine and/or DHEA can improve health in adults with type 1 diabetes. It’s mainly looking for people without major diabetes complications or major medical problems to safely study the effects.
Baltimore, MarylandAges 18–50 - NCT03290456Recruiting
Prednisone plus rituximab to help keep ANCA vasculitis in remission
This trial studies whether extending low-dose prednisone alongside rituximab (given as infusions at set times) helps keep microscopic polyangiitis (MPA) or granulomatosis with polyangiitis (GPA) in remission. If you respond to initial treatment, the goal is to reduce the chance of relapse and maintain disease control.
AmiensAges 18 years+ - NCT03312556Recruiting
CPAP for high blood pressure when lying down
This trial looks at whether using CPAP (a breathing device) can help control high blood pressure that happens when you lie down, in people with autonomic failure. It’s designed for safety and effectiveness and may improve symptoms and blood pressure control.
Nashville, TennesseeAges 18–85 - NCT03339128RecruitingPhase 2
Eluxadoline for diarrhea-predominant IBS in children
This trial tests whether eluxadoline can reduce symptoms of IBS with diarrhea (IBS-D) in children ages 6 to 17. It also asks families to track symptoms with a daily diary to measure whether treatment helps over the study period.
Hot Springs, ArkansasAges 6–17 - NCT03407079RecruitingPhase 2
Study of sucralose’s effects on digestion of drugs
This study tests whether the sugar substitute sucralose changes how your body absorbs and breaks down certain medicines. You’d take sucralose or a placebo for 4 weeks, visit the clinic, and complete required samples and medicine doses during visits.
Bethesda, MarylandAges 18–60 - NCT03418038RecruitingPhase 2
Vitamin C with chemotherapy for certain relapsed blood cancers
This Phase 2 trial tests whether intravenous vitamin C (ascorbic acid) added to chemotherapy can improve outcomes for people with certain relapsed or treatment-resistant lymphomas or chronic myelomonocytic leukemia (CMML). It may help by boosting chemotherapy’s effectiveness and/or changing how the cancer responds.
Mankato, MinnesotaAges 18 years+ - NCT03423680RecruitingPhase 3
Aripiprazole added to mood stabilizers for bipolar depression
This trial tests whether adding aripiprazole (Abilify) to a mood stabilizer helps people with bipolar disorder who are currently in a major depressive episode. It may help improve depressive symptoms compared with the mood stabilizer alone.
SeoulAges 19–70 - NCT03480971RecruitingPhase 2
Tempol to reduce mouth and other side effects from radiation and cisplatin
This Phase 2 trial tests tempol to lessen harmful side effects caused by head-and-neck radiation and the chemotherapy drug cisplatin. If you qualify, you may receive tempol during treatment to help protect normal tissues and reduce toxicity.
La Jolla, CaliforniaAges 18 years+ - NCT03522545RecruitingPhase 1
Stem cell add-on for hard-to-treat bipolar depression
This Phase 1 study tests whether adding allogeneic (donor) stem cells to standard care is safe and may help adults with bipolar depression that has not improved with usual treatments. It mainly targets people with more severe symptoms and certain blood inflammation levels.
Houston, TexasAges 18–65 - NCT03540758RecruitingPhase 2
Study of how brain sugar control channels affect blood sugar
This Phase 2 study tests how certain channels in the brain help control how your body makes and releases sugar (glucose). It may help explain blood sugar problems in people with type 2 diabetes and healthy volunteers.
The Bronx, New YorkAges 21–70 - NCT03543839RecruitingPhase 4
Belimumab for early lupus activity in the first two years
This trial tests belimumab to see if it can improve lupus (SLE) disease activity in people who were diagnosed within the last two years. You may be eligible if your lupus is currently mild to moderate and your background lupus medicines are stable.
Manhasset, New YorkAges 18 years+ - NCT03547232RecruitingPhase 4
Indomethacin given early to treat acute pancreatitis
This trial tests whether taking indomethacin (an anti-inflammatory medicine) early can improve outcomes in people with acute pancreatitis. You might be eligible if your pancreatitis is diagnosed soon and you meet specific lab, imaging, and safety requirements.
Beijing, Beijing MunicipalityAges 18–80 - NCT03570450RecruitingPhase 1
Stem cell treatment for non-lacunar stroke after the first day
This early-phase study tests a stem cell treatment for certain types of stroke, focusing first on safety and the right dose. It may help doctors learn whether the treatment is safe and potentially beneficial when given soon after stroke begins.
GrenobleAges 18 years+ - 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+ - NCT03592472RecruitingPhase 3
Testing pazopanib with or without abexinostat for kidney cancer
This Phase 3 trial studies how well pazopanib works, and whether adding abexinostat can improve outcomes, for advanced kidney cancer that cannot be removed by surgery or has spread. You may qualify if you have clear cell renal cell carcinoma and have not already had certain targeted kidney-cancer medicines.
Phoenix, ArizonaAges 18 years+ - NCT03593317RecruitingPhase 2
Test medicine that blocks hormones for ARVD heart disease
This Phase 2 trial studies whether blocking certain heart/hormone signals can improve ARVD (a heart muscle condition). It also looks at safety by checking how well your kidneys and electrolytes tolerate these medicines.
AmiensAges 18 years+ - NCT03614962Recruiting
Warmth and TENS to improve thinking in dementia
This study tests whether using a warmth treatment and a gentle electrical nerve-stimulation device (TENS) can improve thinking and memory in people with mild to moderate dementia. It may help by supporting brain and nerve function, alongside your usual care.
Hong KongAges 65 years+ - NCT03615742RecruitingPhase 4
Study how diesel fumes affect asthma medicine response
This trial looks at how diesel exhaust exposure can change how well asthma “steroid” medicine works in your body. It may help researchers understand why some asthma symptoms are harder to control and guide better treatment strategies.
Vancouver, British ColumbiaAges 19–49 - NCT03642028RecruitingPhase 4
Sleep medicine study for PTSD-related sleep problems
This trial tests suvorexant, a sleep medicine, to help improve sleep disturbance in people with PTSD. It’s designed for adults who have had PTSD symptoms for at least a few months and also have insomnia.
Long Beach, CaliforniaAges 18–75 - 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 - NCT03695887RecruitingEarly Phase 1
Disposable nitrous oxide for pain during burn dressing changes
This early-stage study tests whether using disposable nitrous oxide canisters can better control pain when you need burn dressing changes. It may help by making dressing changes more comfortable, but eligibility depends on your burn size, health, and breathing ability.
Winnipeg, ManitobaAges 18 years+ - 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
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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.