Clinical trials
Placebo clinical trials
Below are recruiting placebo clinical trials, each written for real people, not researchers. We’re tracking 5,158 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07761546Enrolling by invitation
Ai-test: microbiome nutrition for low testosterone
This study tests whether a special diet can improve symptoms of low testosterone in men. It is intended to help men with certain symptoms like a low sex drive or trouble having erections and whose blood tests show low to borderline testosterone levels.
AydinAges 30–65 - NCT07759245RecruitingPhase 2
Brenipatide for moderate-to-severe COPD
This trial tests a new medicine called Brenipatide to see if it can help people with moderate-to-severe COPD who still have symptoms despite using standard inhalers. The study will compare the effects of Brenipatide against a placebo to understand if it is safe and effective.
Birmingham, AlabamaAges 40–75 - NCT07759128RecruitingPhase 3
Test of a new anxiety medication for adults with generalized anxiety disorder
This study tests a new medicine (SEP-363856) for adults with generalized anxiety disorder to see if it reduces anxiety symptoms and is safe. It may help if other treatments haven't worked well.
Tucson, ArizonaAges 18 years+ - NCT07758634RecruitingPhase 1/Phase 2
Study of an experimental treatment for high blood pressure
This trial tests a new treatment called CTX340 for high blood pressure that is hard to control even with multiple medications. The study aims to see if it is safe and effective.
Port Orange, FloridaAges 18–75 - NCT07758595RecruitingPhase 1
Study of DNL921 for healthy people and people with Alzheimer's disease
This trial tests an investigational drug called DNL921 in healthy volunteers and in people with mild to moderate Alzheimer's disease. The goal is to see if it is safe and how the body handles it, which is a first step in finding a new treatment.
ManchesterAges 18–75 - NCT07761429RecruitingPhase 2/Phase 3
Study of a new drug with chemo for cancer of unknown primary
This trial tests a new drug (F520) combined with two chemotherapy drugs for people whose cancer started in an unknown place in the body. It aims to see if the combination shrinks tumors and is safe.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07765004Recruiting
Probiotic supplement for constipation relief
This study tests whether a probiotic supplement can improve constipation symptoms like infrequent bowel movements or hard stools. It might help you have more regular, softer stools.
Suzhou, JiangsuAges 18–65 - NCT07766655RecruitingPhase 3
Medication for quitting smoking
This study tests if an investigational medication helps adults stop smoking. Participation takes place of over several weeks, and may increase your chances of quitting successfully.
Little Rock, ArkansasAges 18–65 - NCT07759362RecruitingPhase 3
Study of a new treatment for flexible hammertoe
This trial tests an investigational treatment called KN3835 for flexible or semi-flexible hammertoe, a condition where one of your toe joints bends downward. The treatment is given as an injection and may help straighten the toe and reduce pain.
Corona, CaliforniaAges 18–75 - NCT07764991RecruitingPhase 2
Lactoferrin supplement for diabetic kidney disease
This study tests whether taking a lactoferrin supplement can help people with type 2 diabetes and chronic kidney disease (stage 3 or 4) by reducing protein in their urine, which is a sign of kidney damage. It may offer a new way to slow the progression of kidney disease.
CairoAges 18–75 - NCT07759635Recruiting
Effects of Plan B on heart health in young women
This study looks at how the emergency contraceptive Plan B (levonorgestrel) affects heart and blood vessel health in young, naturally cycling women. Participants will take the medication and have their cardiovascular health measured over a short period.
Hamilton, OntarioAges 18–35 - NCT06141226RecruitingPhase 2
New drug combo for immunotherapy-resistant lung cancer
This trial tests a combination of an immunotherapy drug (TQB2450), a targeted therapy (anlotinib), and chemotherapy for people with advanced non-small cell lung cancer whose cancer stopped responding to prior immunotherapy. It aims to find a new option when the first treatment didn't work anymore.
Huizhou, GuangdongAges 18–75 - NCT07753122Recruiting
Hydrogen water for chronic fatigue syndrome
This trial tests whether drinking hydrogen water can help with symptoms of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). If you have ME/CFS, this study might show if hydrogen water is a helpful treatment.
Stony Brook, New YorkAges 18–65 - NCT07754968Recruiting
Probiotic for formula-fed babies with colic
This study tests whether adding a probiotic called Bifidobacterium bifidum to formula can help reduce colic symptoms in babies who are not breastfed. It may also help if the baby has eczema (atopic dermatitis).
Roma, RMAges 1 week–5 months - NCT07750002Recruiting
Ergothioneine supplement for healthy aging and skin
This trial tests a daily supplement called ergothioneine, which may support healthy aging and improve skin health. If you are a generally healthy adult aged 35 to 55, you may be able to join.
DhakaAges 35–55 - NCT07754175Recruiting
Stem cell knee treatment for osteoarthritis patients
This study tests a stem cell injection for knee osteoarthritis in patients who previously received a placebo. It aims to see if the treatment is safe and effective over a longer period.
SeoulAges 19 years+ - NCT07757529Recruiting
Sage extract for thinking and memory in middle-aged adults
This study tests whether a daily sage extract supplement can improve thinking, focus, and memory in healthy middle-aged adults. If it works, it could offer a natural way to support brain health.
College Station, TexasAges 40–60 - NCT07754461RecruitingPhase 3
Survodutide for blood sugar control in type 2 diabetes
This study tests an investigational drug called survodutide to see if it helps people with type 2 diabetes manage their blood sugar levels. Participants will receive either survodutide or a placebo, and the study will compare changes in HbA1c (a measure of blood sugar control).
Birmingham, AlabamaAges 18 years+ - NCT07749716RecruitingPhase 2
Oral tablet for severe hair loss
This study tests an experimental oral tablet for severe alopecia areata, a condition that causes patches of hair to fall out. The goal is to see if it can help regrow hair safely. You may be able to join if you have this type of hair loss and meet the health requirements.
Beijing, Beijing MunicipalityAges 18–65 - NCT07754474RecruitingPhase 1
Testing a new medicine for overweight or obesity
This study tests a new drug called BI 3034701 to see how well people tolerate different doses. It may help with weight loss and related health issues.
MannheimAges 18–74 - NCT07749768RecruitingPhase 1
Oral drug for ulcerative colitis safety study
This study tests an investigational oral drug for ulcerative colitis. It is an early-stage trial to check safety and how the drug is processed by the body in both healthy volunteers and patients with active ulcerative colitis.
Miami, FloridaAges 18–55 - NCT07750158RecruitingPhase 3
Zanzalintinib for colorectal cancer with residual tumor dna
This trial is testing a new drug (zanzalintinib) alone or with pembrolizumab to see if it can stop cancer from coming back in people with colorectal cancer who have no visible cancer on scans but still have tumor DNA in their blood.
Council Bluffs, IowaAges 18 years+ - NCT07758101RecruitingPhase 1
Study of a new medicine for ulcerative colitis
This trial tests a new medicine to see if it's safe for people with moderate to severe ulcerative colitis. It also tests the medicine in healthy volunteers to check for side effects. If you have ulcerative colitis, this might offer a new treatment option.
Hangzhou, ZhejiangAges 18–55 - NCT07749742RecruitingPhase 1
Study of MI226 injection for belly fat
This trial tests a new injection called MI226 to reduce belly fat. It is for people with noticeable belly fat who want to see if this treatment can help slim that area.
Beijing, Beijing MunicipalityAges 18–65
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Common questions
- Are there clinical trials for placebo?
- Yes. Clin2 currently lists 5,158 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.