Clinical trials
Placebo Effect clinical trials
Below are recruiting placebo effect clinical trials, each written for real people, not researchers. We’re tracking 758 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07377539RecruitingPhase 1
A study of JZP047 in healthy volunteers
This study tests a new investigational drug called JZP047 in healthy volunteers. Researchers want to see how safe it is, how the body processes it, and whether taking it with food changes its effects.
Lincoln, NebraskaAges 18–55 - NCT07521345RecruitingPhase 1
Safety Study of HSK55879 Tablet in Healthy Adults
This early-stage study tests how a new experimental medication (HSK55879) is tolerated and processed by the body in healthy volunteers. Researchers will also check how food affects the drug's absorption to help determine safe dosing for future patient studies.
Hefei, AnhuiAges 18–45 - NCT06500104Enrolling by invitation
Kefir for Childhood Obesity: A Trial
This trial tests whether a probiotic drink called kefir (a fermented milk beverage) can help children and teens with obesity lose weight or improve their health. It's for children who are significantly above a healthy weight and don't have other serious medical conditions or dairy allergies.
TaichungAges 7–17 - NCT04218409RecruitingEarly Phase 1
Tests a spray to reduce opioid use and pain
This early trial studies whether Syntocinon can lower pain and help reduce how much opioids people use. It checks safety and the best dose by giving participants the study drug under close medical monitoring.
Gainesville, FloridaAges 21–45 - NCT07035964Recruiting
Lactoferrin supplement for gut health in adults
This trial tests whether a daily supplement called Effera Human Lactoferrin can improve gut health in adults with belly fat and mild stomach issues. It compares the supplement to a placebo (a dummy pill) over several weeks.
Addison, IllinoisAges 18–40 - NCT07377994Enrolling by invitation
Gut health and immunity study with a probiotic in healthy adults
This trial tests a probiotic supplement containing Bacillus coagulans to see if it improves gut health and immune function in healthy adults. If you are generally healthy and not taking certain medications or supplements, you may be able to join.
Bangalore, KarnatakaAges 18–50 - NCT07377942Enrolling by invitation
Probiotic study for gut and immune health in healthy adults
This study tests a probiotic (a type of good bacteria) called Bacillus subtilis to see how it affects digestion and the immune system in healthy adults. It involves taking the product, giving stool samples, and visiting the clinic for checkups.
Bangalore, KarnatakaAges 18–50 - NCT06917404RecruitingPhase 3
Knee osteoarthritis pain study: comparing a new injection to placebo
This phase 3 study tests whether a medicine called pentosan polysulfate sodium (PPS), given as a shot under the skin, reduces pain in people with knee osteoarthritis. It compares PPS to a placebo (a shot with no active medicine) to see if it is safe and effective.
Peoria, ArizonaAges 18 years+ - NCT07548424Recruiting
Testing a Peptide Cream on Healthy Skin
This study tests whether a cream containing peptides (small protein fragments) can improve how well your facial skin barrier works. The cream will be tested on one side of your face, compared to the other side, to see if it strengthens and protects your skin.
SplitAges 18–50 - NCT06666673RecruitingEarly Phase 1
Effects of a muscle relaxant on arm movement after stroke
This study looks at how the brain controls arm movements after a stroke. It tests whether a medication called tizanidine, which relaxes muscles, can improve arm function when combined with physical therapy.
Chicago, IllinoisAges 18–80 - NCT05649059RecruitingPhase 4
Cannabidiol study for social anxiety symptoms
This trial studies whether cannabidiol (CBD) helps improve social anxiety symptoms. You may be able to join if you are an adult with significant social anxiety and meet medication and health safety requirements.
Cambridge, MassachusettsAges 18–55 - NCT04281979Recruiting
Testing a substance’s effects in adult cigarette and vape users
This study tests how a specific substance affects people who currently smoke cigarettes or e-cigarettes. You may be able to join if you’re within a certain age range and recently had specific smoking and drinking patterns, and if you meet health/safety requirements for study procedures like MRI.
Portland, OregonAges 21–40 - NCT07119788Recruiting
Haskap berry supplement for cognitive health
This study tests whether a supplement made from haskap berries can help improve cognitive health in older adults. If you are 50 or older, eat few fruits and vegetables, and are generally healthy, you may be able to join.
ReadingAges 50 years+ - NCT05814055RecruitingPhase 2
Kava to help quit smoking by easing stress and sleep issues
This Phase 2 study tests whether kava can help people quit smoking, especially by reducing stress and improving sleep during tobacco abstinence. You may be offered kava as part of a quitting support plan and monitored for safety and progress.
Gainesville, FloridaAges 21–75 - NCT06385054RecruitingPhase 2
Probiotics for infant colic in breastfed babies
This study tests a probiotic (friendly bacteria) to see if it can reduce crying and fussing in babies with colic. It is for exclusively breastfed infants 8 weeks and younger who have colic symptoms.
Bécon-les-GranitsAges Up to 2 months - NCT06938464Recruiting
Probiotics to prevent gestational diabetes in high-risk women
This study tests whether taking probiotics (friendly bacteria) during early pregnancy can help prevent gestational diabetes in women who are at higher risk for it.
Hangzhou, ZhejiangAges 18–50 - NCT07089238Recruiting
Citicoline for mood in healthy adults
This study tests whether a supplement called citicoline can improve mood in healthy adults who have some mild mood disturbance. It is designed to see if taking citicoline leads to a better mood.
Canfield, OhioAges 21–65 - NCT02781519RecruitingPhase 1
Study how THC affects men and women who have used cannabis before
This Phase 1 study tests how delta-9 THC (the main active ingredient in cannabis) affects healthy adults, and whether the effects differ by gender. It may help researchers understand risks and responses to THC, which could guide safer use and future treatments.
West Haven, ConnecticutAges 18–55 - NCT07425938Recruiting
How oxytocin affects emotional processing
This study looks at how oxytocin, a natural hormone, influences the way we process emotions. Healthy volunteers will receive oxytocin to understand its effects on emotion and brain activity.
Chengdu, SichuanAges 18–30 - NCT06686914RecruitingPhase 1
How CBD affects driving by dose and sex
This study tests how different doses of CBD (a cannabis compound) affect driving ability in healthy adults. It looks at whether men and women react differently, and helps understand if CBD is safe to use before driving.
Morgantown, West VirginiaAges 18–30 - NCT07073950RecruitingPhase 4
A study on a triple inhaler for COPD with hyperinflation
This study tests a triple-combination inhaler (budesonide, glycopyrronium, formoterol) against a placebo inhaler to see how it affects your heart and lungs if you have COPD and over-inflated lungs.
AhrensburgAges 40–80 - NCT07201051RecruitingPhase 2
Testing a new drug for people with bronchiectasis
This trial tests if a new drug, GSK3862995B, is safe and effective for adults with bronchiectasis. It might help reduce lung infections and improve symptoms.
Mobile, AlabamaAges 18–85 - NCT04781972RecruitingPhase 4
Brain scan study of ADHD effects from methylphenidate
This study uses brain imaging (MRI) to see how methylphenidate affects brain activity in people with ADHD. It may help doctors better understand how this medicine works and who benefits most.
Baltimore, MarylandAges 6–40 - NCT05358834Recruiting
Melatonin study to change uterine contractions near delivery
This study tests whether taking melatonin affects uterine contractions (how strongly and how often the uterus tightens) in pregnant people close to delivery. It may help researchers understand whether melatonin can influence labor-related processes and timing.
Boston, MassachusettsAges 18–35
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Common questions
- Are there clinical trials for placebo effect?
- Yes. Clin2 currently lists 758 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.