Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,154 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06550167Recruiting
Nano PSO for brain protection in substance users
This trial tests whether a supplement called Nano PSO can help protect the brain in people who have used methamphetamines, cocaine, and cannabis for at least three years. It looks at effects during the withdrawal period for men currently in residential treatment.
Guadalajara, JaliscoAges 18–50 - NCT07783802RecruitingPhase 2
Study of clazakizumab for adults with high inflammation and heart risk
This study tests whether clazakizumab can reduce the risk of heart attacks or strokes in people with high levels of inflammation (measured by a blood test called hsCRP) and conditions like heart disease, obesity, diabetes, high blood pressure, or kidney disease. If you qualify, you'll receive either the study drug or a placebo to see if it helps lower your risk.
Huntsville, AlabamaAges 18 years+ - NCT07778836RecruitingPhase 3
Study of daily injections for Friedreich's ataxia
This study tests an investigational drug given as a daily injection to see if it can improve walking and balance in people with Friedreich's ataxia.
Tampa, FloridaAges 12–40 - NCT07779265Recruiting
Probiotic supplement for gut health in healthy adults
This trial tests a daily probiotic supplement's effect on digestion, immune health, and overall well-being. If you're a healthy adult, you may help discover if this product can make you feel better day-to-day.
TrierAges 18–65 - NCT07782970RecruitingPhase 3
Treatment for chronic sinusitis with nasal polyps
This study tests a new medication (felcorekibart) to see if it reduces nasal polyps and symptoms like congestion and loss of smell. It may help people whose current treatments aren't enough.
Los Angeles, CaliforniaAges 18 years+ - NCT07779252RecruitingPhase 3
Study of a new treatment for frown lines between the eyebrows
This study tests a new medication (IPN10200) to safely reduce moderate to severe frown lines between the eyebrows in adults. It may help if you are bothered by these lines and are looking for a non-surgical option.
Guangzhou, GuangdongAges 18 years+ - NCT07776509RecruitingPhase 3
Adding a new drug to current weight-loss therapy for adults with obesity or overweight
This study tests a new medication (AZD6234) added to your current weight-management medication (an incretin-based drug) to see if it helps with weight loss. You may be eligible if you are overweight or obese with related health issues or type 2 diabetes.
Escondido, CaliforniaAges 18 years+ - NCT07777861RecruitingPhase 2
Testing an eye drop for worsening glaucoma
This study tests an eye drop (G01) for people with primary open-angle glaucoma that is getting worse despite current treatments. It aims to see if G01 can safely slow down or stop the progression of glaucoma.
Beijing, Beijing MunicipalityAges 18–80 - NCT07775924RecruitingPhase 2
New drug for moderate to severe lichen planus
This study tests a new medication for people with moderate to severe lichen planus that has not improved with topical treatments. The goal is to see if it reduces symptoms and improves quality of life.
Birmingham, AlabamaAges 18–99 - NCT07777822RecruitingPhase 3
First-line treatment for metastatic non-squamous lung cancer with RAS mutation
This trial tests whether adding a new drug (zoldonrasib) to standard chemotherapy and immunotherapy can help people with a specific type of lung cancer. It is for those with a RAS G12D mutation and no prior treatment for metastatic disease.
Plantation, FloridaAges 18 years+ - 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 - NCT07781514Enrolling by invitation
Vitamin E as an add-on to levothyroxine for hypothyroidism
This trial tests whether adding vitamin E to your usual levothyroxine treatment helps improve thyroid function and reduce oxidative stress (a type of cell damage) in adults with hypothyroidism.
DhakaAges 18–75 - 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 - NCT07778511Recruiting
How opioids affect stress and social behavior
This study looks at how opioid medicines affect stress and social behavior in healthy men and women, and whether childhood experiences play a role. Participation involves taking a study drug and giving blood samples.
ZurichAges 18–40 - NCT06446479RecruitingPhase 2
THC's effect on alcohol use and brain reward
This study tests whether THC (the active ingredient in cannabis) can change how much alcohol you drink and how your brain responds to rewards. You will have MRI scans and take THC or a placebo, then drink alcohol in a controlled setting.
Aurora, ColoradoAges 21–40 - NCT06093932RecruitingPhase 4
Songling Xuemaikang Capsules for mild high blood pressure
This study tests whether Songling Xuemaikang Capsules can help lower blood pressure in people with mild hypertension who are not currently on regular medication. It may offer a natural treatment option for managing early-stage high blood pressure.
Beijing, Beijing MunicipalityAges 35–65 - 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 - NCT07770464RecruitingPhase 2
Montelukast for acute bronchiolitis in infants
This study tests whether montelukast, a medicine that helps reduce airway inflammation, can improve symptoms of acute bronchiolitis (a common lung infection in babies) when given early. It may help babies breathe easier and recover faster.
Islamabad, FederalAges 4 weeks–2 years - NCT05923333Recruiting
Breastfed infants of HIV-exposed mothers get a probiotic
This study gives a specific probiotic (from B. infantis) to babies born without HIV to see if it can improve the baby’s early immune health. It focuses on babies who are HIV-exposed because their mother has HIV and plans to exclusively breastfeed for the first 6 months.
Cape TownAges birth–50 years - NCT07770685RecruitingPhase 1/Phase 2
Study of a new eye drop for advanced glaucoma
This trial tests an investigational eye drop called ASP2767 to see if it is safe and can help slow or prevent further vision loss in people with advanced glaucoma-related optic nerve damage.
Boston, MassachusettsAges 18 years+ - NCT07770841RecruitingPhase 3
Oral medication for weight loss study
This study tests an oral medicine (semaglutide) to see if it helps adults with excess weight lose weight. It might offer an easier, pill-based treatment option for weight management.
Birmingham, AlabamaAges 18 years+ - NCT07775300RecruitingPhase 3
Study of an injectable drug for major depressive disorder
This study tests an investigational drug called brenipatide for major depressive disorder. It is given as a self-injection and is being compared to a placebo to see if it helps improve depression symptoms in people who are already on standard treatment.
Birmingham, AlabamaAges 18–75 - NCT07767175RecruitingPhase 1
Weight loss study for adults with overweight or obesity
This study tests an investigational medication, called NNC0721-8060, to see how it works in people with excess weight (overweight or obesity). It may help with weight loss, but is still in early human testing.
Lenexa, KansasAges 18–55 - NCT07775404RecruitingPhase 3
Weight loss medication for Asian adults with obesity or overweight
This study tests an investigational medication called elecoglipron for weight loss in Asian adults who are overweight or have obesity, with or without type 2 diabetes. It may help participants lose weight and improve health.
BaotouAges 18 years+
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,154 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.