Clinical trials
Placebo Effect clinical trials
Below are recruiting placebo effect clinical trials, each written for real people, not researchers. We’re tracking 725 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06971445Enrolling by invitation
Omega-3 supplements for pregnant women with HIV
This trial tests whether taking omega-3 supplements can improve pregnancy outcomes and reduce inflammation in pregnant women living with HIV who are on antiretroviral therapy. If you are between 20 and 29 weeks pregnant with a single baby, you may be eligible to join.
Mexico City, Mexico CityAges 18 years+ - NCT06422741Recruiting
Grape seed extract for cholesterol in night shift workers
This study tests whether a grape seed extract supplement can help lower LDL (bad) cholesterol in people who work rotating night shifts. It is looking for healthy adults with moderately high cholesterol who are not taking cholesterol medicine.
Reus, TarragonaAges 18 years+ - NCT07777328Recruiting
5-HTP for ADHD traits and eye movements in adults
This study looks at how a supplement called 5-HTP (a natural amino acid) affects attention and eye movements in adults. You will receive either 5-HTP or a placebo to see if it changes ADHD-like traits.
Sheffield, South YorkshireAges 18–65 - NCT07318896Recruiting
Agar and collagen supplement study for knee pain
This trial tests whether a supplement made from agar and collagen can help reduce knee pain in people with mild to moderate osteoarthritis. If you are between 40 and 70 and have knee pain, this may be an option for you.
Reus, TarragonaAges 40–70 - NCT07234422RecruitingPhase 3
Selenium and CoQ10 for heart failure
This study tests whether adding selenium and CoQ10 (two natural supplements) to standard heart failure treatment helps people with chronic heart failure feel better and improve their health. Researchers are using a registry-based approach to track participants in the Netherlands.
AlkmaarAges 18 years+ - NCT07173062Recruiting
Algae supplement for heart health and gut bacteria
This study tests whether a supplement made from algae can help improve markers of heart health and affect the bacteria in your gut. It is for people age 50 and older who already have a condition like heart disease, kidney disease, or diabetes.
PortoAges 50 years+ - NCT06676774RecruitingPhase 2
Does oxytocin nasal spray help people with diabetes insipidus?
This study tests if a nasal spray with oxytocin (a natural hormone) can improve emotion recognition and reduce stress-related hormone levels in people with central diabetes insipidus compared to healthy volunteers.
BaselAges 18 years+ - NCT06894875Recruiting
Lentil protein's effect on blood pressure and exercise
This trial tests a lentil protein supplement to see if it helps control blood pressure, improve blood vessel function, and boost exercise performance. You may be able to join if you're a healthy, active adult aged 18-45.
Melbourne, VictoriaAges 18–45 - NCT06746220Recruiting
Effect of activity and probiotics on body and health in women
This study looks at how adding physical activity and/or probiotics might affect your body composition and health. It is for women who are students at the University of Orléans and do not already exercise regularly.
OrléansAges 18 years+ - NCT06495684Recruiting
A brain stimulation study for adults with autism
This trial tests whether mild brain stimulation (transcranial direct current stimulation or tDCS) over multiple sessions can improve thinking, behavior, and brain activity in adults with autism. It may help researchers learn if this safe, noninvasive treatment can support better daily functioning.
Albuquerque, New MexicoAges 18–35 - NCT06861062Recruiting
Vitamin D and yeast beta-glucan for type 2 diabetes
This trial tests if taking vitamin D3 and yeast beta-glucan supplements can help control blood sugar and lower heart disease risk in people with type 2 diabetes. It may be an option for those who want to see if supplements can improve their diabetes management.
Nanning, GuangxiAges 40–79 - NCT07097506RecruitingPhase 2
Ketone drink for liver fat and health
This study tests whether a daily ketone ester drink can reduce liver fat and improve metabolism in people with excess liver fat. You may join if you are 18–40, have overweight or obesity, and your liver has extra fat.
St Louis, MissouriAges 18–40 - NCT06734975RecruitingPhase 2
Nerve block for better recovery after vocal cord surgery
This study tests if a nerve block can help reduce pain and improve recovery after surgery to remove a noncancerous growth on the vocal cords. Participants will be randomly assigned to receive either the nerve block or standard care.
Newark, New JerseyAges 18 years+ - NCT07553143Recruiting
Melatonin before gallbladder removal surgery
This study tests whether taking melatonin (a natural sleep hormone) before elective gallbladder removal surgery helps patients recover better and feel less pain or discomfort afterward. Melatonin may help reduce stress on the body during surgery.
Dhaka, Dhaka DivisionAges 18–60 - NCT07449117Recruiting
Brain stimulation for language in mild cognitive decline
This study tests a new type of gentle brain stimulation (called temporal interference) to see if it can improve language processing in people with mild cognitive impairment. The stimulation uses electrodes placed on the head and is done while you are in an MRI scanner.
Brno, South MoravianAges 60–80 - NCT07244991Recruiting
Effect of a special toothpaste on plaque bacteria and cavities during braces treatment
This trial tests whether a special paste (MI Paste Plus) can reduce cavity-causing bacteria and prevent early white spots on teeth while you are wearing braces.
Tirana, AlbaniaAges 5–45 - NCT07063342RecruitingPhase 1
Study of new drug versions in healthy adults
This study is testing new versions of a drug (called KarX and KarT) in healthy adults to see how the body handles them. Researchers will also look at how food affects the drug when taken multiple times.
Nottingham, NottinghamshireAges 18–55 - NCT07099859RecruitingPhase 4
Losartan after aortic valve surgery for severe leakage
This trial tests if the drug losartan can help the heart recover better after surgery to replace a leaky aortic valve. It may reduce strain on the heart and improve long-term outcomes.
São Paulo, São PauloAges 18–85 - NCT06925880Recruiting
Can creatine help seniors recover strength after knee replacement?
This trial tests if taking creatine supplements can help people aged 65+ rebuild muscle mass and strength more quickly after total knee replacement surgery. Participants will take creatine during their standard outpatient rehab program.
Mataró, BarcelonaAges 65 years+ - NCT06347770RecruitingPhase 1
Oral Gan Shuangbi for recovery after C-section
This trial tests an oral herbal medicine (Gan Shuangbi) to see if it helps your intestines work normally again after a C-section. It may speed up recovery after delivery.
Guangzhou, GuangdongAges 18–45 - NCT05961501Enrolling by invitationPhase 2/Phase 3
CBD and CBN for long-lasting facial pain and muscle headaches
This trial tests whether CBD and CBN can reduce facial pain and headaches caused by muscle-related problems that have lasted more than 3 months. It may help people who have ongoing symptoms find a new treatment option.
WroclawAges 18 years+ - NCT07118059RecruitingPhase 2
Omega-3 fish oil added to TB treatment
This trial tests whether adding omega-3 (fish oil) to standard TB treatment helps clear the infection faster and reduces inflammation. You may be eligible if you have confirmed lung TB and meet a few health criteria.
Klerksdorp, North WestAges 18–45 - NCT07026539RecruitingPhase 4
Finerenone for heart and kidney health in type 2 diabetes
This trial tests whether adding finerenone to your current diabetes medications can better protect your heart and kidneys. It is for people with type 2 diabetes who already take an SGLT2 inhibitor and an ACE inhibitor or ARB.
Aarhus NAges 18 years+ - NCT06939088RecruitingPhase 2
Tirzepatide for alcohol reduction in schizophrenia
This trial tests if tirzepatide, a once-weekly injection, can help reduce heavy drinking in people who have both schizophrenia and alcohol use disorder. If you struggle with alcohol and have stable schizophrenia, this study may offer a new treatment option.
Aalborg, DenmarkAges 18–70
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Common questions
- Are there clinical trials for placebo effect?
- Yes. Clin2 currently lists 725 recruiting placebo effect 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 effect 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 effect 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.