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
- NCT07217873RecruitingPhase 2/Phase 3
IV iron for teens with scoliosis and low iron
This trial tests whether giving intravenous (IV) iron before spine surgery helps teens with scoliosis who have low iron stores. The goal is to see if it can reduce the need for blood transfusions during surgery.
New York, New YorkAges 10–19 - NCT07218445RecruitingPhase 4
Tirzepatide for hot flashes in post-menopausal women with obesity
This study tests whether tirzepatide, a weekly injection, can reduce bothersome hot flashes and slow biological aging in post-menopausal women with obesity. It also includes a personalized diet and exercise plan.
Jacksonville, FloridaAges 46–60 - NCT07213063Recruiting
Creatine and HMB supplements for Down syndrome
This trial tests whether taking creatine and HMB supplements can improve muscle strength, reduce inflammation, and increase muscle mass in people with Down syndrome. It may help if you or your loved one can do basic physical tests like standing from a chair and do not have kidney disease or severe mobility issues.
Burgos, BurgosAges 18 years+ - NCT07213323Recruiting
Probiotics for Digestion During Weight-Loss Treatment
This study tests whether taking a probiotic (a type of 'good' bacteria) can improve digestion and gut health in people who are starting a GLP-1 RA medicine for weight loss. You would take the probiotic daily and answer questions about your digestive symptoms.
Pierre-BéniteAges 18–75 - NCT07220382RecruitingPhase 4
Botox injections before large hernia surgery
This trial tests if getting Botox shots in the belly muscles before hernia surgery makes the repair easier and more successful. It is for adults who need a planned, open surgery for a large ventral hernia.
Cleveland, OhioAges 18 years+ - NCT07218549RecruitingPhase 1
Study of psychoactive substances in people with past opioid use
This trial tests how safe certain psychoactive substances are and what effects they have in people who have used opioids in the past but are not currently dependent on them. It aims to gather information that could help future treatment options.
Houston, TexasAges 18–55 - NCT07212868RecruitingPhase 1
How glucagon affects blood sugar after weight loss surgery
This study looks at how the hormone glucagon affects blood sugar in people who have had gastric bypass or sleeve gastrectomy surgery more than a year ago, compared to people who have not had any gastrointestinal surgery. It aims to understand glucose metabolism better and may help improve care for people after bariatric surgery.
San Antonio, TexasAges 18–65 - NCT07213167Recruiting
Low contrast vision test for different lens implants
This trial checks how well you see in low light and low contrast after having cataract surgery with specific lens implants. It helps doctors understand which lenses work best in dim conditions.
Bakersfield, CaliforniaAges 22 years+ - NCT07215910RecruitingPhase 3
Testing vorasidenib with temozolomide after radiation for advanced brain cancer
This trial tests whether adding the targeted drug vorasidenib to standard chemotherapy (temozolomide) after radiation helps people with a specific type of advanced brain cancer called IDH-mutant astrocytoma. It is for patients who have not had previous treatments like chemotherapy or radiation and whose tumors have certain genetic features.
Bakersfield, CaliforniaAges 12 years+ - NCT07212361Recruiting
Restoring infant gut bacteria with mother's microbes
This study tests whether giving healthy newborns a special mix of their own mother's friendly bacteria can help build a healthy gut. It is for mothers who had a healthy pregnancy, plan to breastfeed, and live near Helsinki.
HelsinkiAges Up to 50 years - NCT07216755Recruiting
Breathing training and nitrate for altitude exercise
This study tests whether breathing training and a natural nitrate supplement (from beets) can improve how well you exercise in conditions that simulate high altitude. You'll do cycling workouts while we measure your performance.
Daytona Beach, FloridaAges 18–40 - NCT07214207RecruitingPhase 2
Testing a sleep medicine for alcohol use disorder and stress-related drinking
This trial tests whether a medicine called suvorexant, which is used for sleep, can help people with alcohol use disorder drink less, especially when stressed. You would receive the medicine or a placebo, and researchers will track your drinking and stress levels over several weeks.
Columbus, OhioAges 18–65 - NCT07214155RecruitingPhase 1
How different cannabis strains affect your experience
This study tests different strains of cannabis to see how they change your perception, feelings, and behavior. It may help you understand how cannabis affects you personally.
Baltimore, MarylandAges 21–55 - NCT07217665Enrolling by invitationPhase 2
AADvac1 vaccine for progressive supranuclear palsy
This trial tests a vaccine called AADvac1 for people with progressive supranuclear palsy (PSP), a brain condition that affects movement and thinking. The study wants to see if the vaccine can slow the disease down.
San Francisco, CaliforniaAges 41–86 - NCT07215884RecruitingPhase 1
Dopamine and movement in people who stutter
This study looks at how dopamine affects speech and movement in adults who stutter. It may help us understand why stuttering happens.
San Francisco, CaliforniaAges 18–65 - NCT03789552RecruitingPhase 3
Testing T89 to prevent chest pain during stable angina
This Phase 3 trial tests whether T89 reduces angina (chest pain caused by heart-related reduced blood flow) in people with stable angina. You may help confirm the treatment’s benefit by completing symptom tracking and exercise heart tests over several weeks.
Naples, FloridaAges 18–90 - NCT05508347RecruitingPhase 2
Testing a new antibody with chemo for locally advanced throat cancer
This study tests nituzumab (a targeted antibody) added to standard induction chemotherapy versus placebo plus chemotherapy. It aims to improve tumor control and safety for people with locally advanced nasopharyngeal (throat) cancer.
Chengdu, SichuanAges 18–70 - NCT06077019Recruiting
How lung function affects exercise in fit adults
This study looks at how your lung function may limit your exercise capacity, even if you are very active. If you are a healthy, highly fit adult aged 18-39, you may be able to help researchers better understand this connection.
CopenhagenAges 18–39 - NCT06067100Recruiting
Effect of asthma medication on exercise in active adults
This trial tests how a common asthma medication (a long-acting beta-agonist combined with a corticosteroid) affects exercise performance in healthy, fit young adults. It may help you understand if you could join if you exercise regularly and have no asthma or heart issues.
CopenhagenAges 18–39 - NCT06655012Recruiting
How salmeterol affects exercise performance
This trial tests whether salmeterol, a medication usually used for asthma, can improve exercise performance in healthy, very fit adults. You will exercise on a bike or treadmill and have your oxygen use measured.
CopenhagenAges 18–40 - NCT06779149Recruiting
Comparing therapy and medication for chronic insomnia
This trial compares two treatments for chronic insomnia: cognitive behavioral therapy (CBT-I) and a medication called lemborexant. It aims to find which works better for different types of insomnia. You may qualify if you have ongoing trouble sleeping and are not taking other sleep aids.
Québec, QuebecAges 18 years+ - NCT06919328Recruiting
Testing a new form of Niagen for energy and fatigue
This trial tests how well a new injectable form of Niagen (a supplement that may boost cellular energy) is absorbed and tolerated compared to NAD+. It may help if you are between 40 and 65, live near the study site, and feel unusually tired.
Huntsville, AlabamaAges 40–65 - NCT06066606Recruiting
Exercise performance and vilanterol study
This trial tests how a common asthma medication affects exercise performance in healthy, fit young adults. You may be able to join if you are very active and have high fitness levels.
Copenhagen, DKAges 18–39 - NCT06902181Recruiting
Inhaling an essential oil for mild memory loss
This trial tests whether inhaling a special essential oil (CXMCI-01) can help people with mild cognitive impairment (MCI) — a condition where you have more memory problems than normal for your age. The study aims to see if the oil is safe and might improve memory and thinking.
TaichungAges 50 years+
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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.