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
- NCT05367245RecruitingPhase 2
Butyrate supplement for Gulf War illness symptoms
This Phase 2 study tests whether a calcium–magnesium butyrate supplement can reduce symptoms of Gulf War Illness (GWI), especially by targeting gut and immune-related pathways. You may be eligible if you’re a Gulf War–era veteran with moderate-to-severe physical symptoms and no conditions or medicines that could explain them instead.
Long Beach, CaliforniaAges 40–70 - NCT05588934Recruiting
Testing the best daily caffeine dose for sleep and alertness
This study compares an adjusted caffeine plan versus a typical caffeine dose to see how it affects your sleep timing and daytime alertness. It may help find a caffeine amount that supports wakefulness without disrupting sleep.
Tucson, ArizonaAges 18–39 - NCT05616819Recruiting
Morning light program to improve mood in some service members
This study tests whether getting morning light exposure can improve mood for service members who currently have mild or more depression symptoms. You’d follow a plan for morning light over about 6 weeks, and the researchers check changes in mood.
Tucson, ArizonaAges 18–60 - NCT05837897RecruitingPhase 3
Vedolizumab for adults with moderate-to-severe Crohn’s
This Phase 3 study tests whether vedolizumab can better control moderate-to-severe Crohn’s disease in adults whose symptoms haven’t improved enough with other treatments. You’d need to meet specific symptom scores, recent colonoscopy findings, and safety checks (including infections and vaccination status).
Hefei, AnhuiAges 18–80 - 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 - NCT06079398RecruitingPhase 2
Weekly injection for infants with achondroplasia
This trial tests a new weekly injection called TransCon CNP for infants with achondroplasia (the most common form of dwarfism). The goal is to see if it can help children grow better than a placebo (a shot with no medicine).
Saint Paul, MinnesotaAges birth–2 years - NCT06072482RecruitingPhase 4
Avacopan for ANCA-associated vasculitis
This trial tests a medication called avacopan for people with ANCA-associated vasculitis, a condition where the immune system attacks blood vessels. Avacopan is taken with standard treatments to help control the disease and may reduce the need for steroids.
Anchorage, AlaskaAges 18–100 - NCT05015439RecruitingPhase 1
CBD study for adults with autism and challenging symptoms
This Phase 1 study tests cannabidiol (CBD) in adults on the autism spectrum who also have mood, sleep, or behavior problems. The goal is to learn whether CBD can be given safely and may help symptoms that affect daily life.
Baltimore, MarylandAges 18 years+ - NCT06008860RecruitingPhase 4
Astepro nasal spray for early COVID-19
This trial tests whether Astepro nasal spray can help people with mild or no COVID-19 symptoms recover faster. If you have tested positive and are vaccinated, you may qualify.
Chicago, IllinoisAges 18 years+ - NCT06058585RecruitingPhase 3
Testing new treatments for chronic kidney disease
This study compares two experimental treatments—one that reduces protein in urine and another that may help control blood sugar and weight—for people with chronic kidney disease. It aims to find safer, more effective ways to slow kidney damage.
Garran, Australian Capital TerritoryAges 18 years+ - NCT06076304RecruitingPhase 4
Comparing treatments for acute sinusitis
This trial tests whether nasal steroids, nasal irrigation, or oral antibiotics work best for acute sinusitis. It may help if you have ongoing sinus symptoms or a 'double-sickening' pattern after a cold.
Los Angeles, CaliforniaAges 18–75 - NCT06070350RecruitingPhase 3
Massive transfusion for life-threatening bleeding in children
This study tests whether adding the drug tranexamic acid (TXA) to a massive blood transfusion helps control life-threatening bleeding in children who are severely injured. It compares two groups: one gets TXA and the other gets a placebo (a dummy drug with no active ingredient).
Tucson, ArizonaAges Up to 17 years - NCT06075914Recruiting
Ketones and sleep: can nutrition help?
This study tests if a special nutritional supplement (ketones) can help your body stay resilient when you don't get enough sleep. If you join, you'll follow a specific diet and have your sleep and health monitored for about 9 weeks.
Columbus, OhioAges 18–40 - NCT06063486RecruitingPhase 2
Curcumin for inflammation and symptoms in blood disorders
This trial tests whether curcumin, a natural compound found in turmeric, can reduce inflammation and improve symptoms like fatigue in people with certain blood disorders that cause low blood counts or overproduction of blood cells. It is for patients with clonal cytopenia of uncertain significance, low-risk myelodysplastic syndrome, or myeloproliferative neoplasms (polycythemia vera, essential thrombocytosis, or myelofibrosis) who have bothersome symptoms.
Los Angeles, CaliforniaAges 18 years+ - NCT06072963RecruitingPhase 2
Combining insulin and semaglutide for memory in MCI with metabolic syndrome
This study tests if a combination of insulin and semaglutide (a diabetes drug) can improve memory and thinking in people with mild cognitive impairment (MCI) who also have metabolic syndrome (a cluster of health issues like large waist, high blood sugar, and high blood pressure). It aims to see if treating blood sugar problems helps protect the brain.
Ramat GanAges 60–90 - NCT06066710RecruitingEarly Phase 1
Propranolol for Primary Progressive Aphasia
This trial tests whether the drug propranolol, often used for high blood pressure, can help people with primary progressive aphasia (a condition that slowly affects language skills). You would take the drug and have MRI brain scans to see if it slows language decline.
Columbia, MissouriAges 50 years+ - NCT06058702RecruitingPhase 1
Genetics of cannabis use disorder and response
This study looks at how genes affect cannabis use disorder and how people respond to cannabis. It may help explain why some people develop problems with cannabis while others do not.
West Haven, ConnecticutAges 21–60 - NCT06075771RecruitingPhase 4
Testing a Parkinson's drug for depression-related loss of interest
This trial tests whether a medication used for Parkinson's disease (carbidopa-levodopa) can help people with major depression who have lost interest or pleasure in things. It is for adults who have not been helped enough by other treatments and have signs of inflammation.
Atlanta, GeorgiaAges 25–55 - NCT06078683Recruiting
Ketone drink for exercise and heart health in type 2 diabetes
This study tests whether a special ketone drink can improve exercise ability and heart function in people with type 2 diabetes. Participants will have two treadmill exercise tests and heart MRI scans to see how the drink affects their performance and cardiac efficiency.
Columbus, OhioAges 18–80 - NCT06066996RecruitingEarly Phase 1
Study of withdrawal symptoms when people vape less
This study looks at what happens when people who vape nicotine daily try to cut back. Researchers want to understand withdrawal symptoms and find better ways to help people reduce or quit vaping.
Baltimore, MarylandAges 21–55 - NCT05975983RecruitingPhase 2
Oral treatment test for idiopathic pulmonary fibrosis
This Phase 2 study tests whether an oral medication (INS018_055) can help people with idiopathic pulmonary fibrosis (IPF). You may be a fit if your lung function is in a certain range and your condition is stable.
Birmingham, AlabamaAges 40 years+ - NCT04811313Recruiting
Tranexamic acid for children having hip bone surgery
This study tests whether tranexamic acid (a medicine that helps reduce bleeding) can safely help children during certain hip bone operations. It may help lower blood loss around the surgery.
AsyutAges 1–18 - NCT06044935Recruiting
Nicotinamide riboside for fat burning and metabolism
This study tests whether a supplement called nicotinamide riboside (a form of vitamin B3) helps the body burn fat more efficiently during exercise. It may be a good option if you are overweight or have a specific type of diabetes (MODY2) and want to see if a natural supplement can boost your metabolism.
Bethesda, MarylandAges 18–65 - NCT06055452RecruitingPhase 4
SGLT2 Inhibitors for Pre-Heart Failure with Hypertension
This trial tests if a medicine (SGLT2 inhibitor) given to people with high blood pressure and early signs of heart stress can help prevent heart failure. You may join if your blood pressure is controlled but tests show your heart is beginning to struggle.
Beijing, Beijing MunicipalityAges 18 years+
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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.