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
- NCT05477459RecruitingPhase 2
LSD treatment for reducing the burden of cluster headaches
This Phase 2 trial tests LSD to see if it can reduce how much cluster headaches disrupt your life. You may be eligible if your cluster headaches are frequent and steady, and if you meet key safety and mental-health requirements.
LeidenAges 16–75 - NCT06768580Recruiting
Melatonin or lidocaine to prevent confusion after hip replacement
This trial tests if giving either oral melatonin or lidocaine during surgery can reduce the chance of confusion (delirium) in older adults after total hip replacement. It compares these two approaches to standard care.
Tanta, El-GharbiaAges 65 years+ - NCT06286657Recruiting
Xanthohumol and viral infections study
This study tests whether a natural compound called xanthohumol (found in hops) can help your body fight off common viruses. Healthy adults with a normal BMI are invited to participate.
ViennaAges 18–70 - NCT06731374RecruitingPhase 4
New pneumonia vaccine study for healthy adults 18–50
This study tests a new pneumococcal vaccine (PCV15) to see how well it protects against carrying the bacteria that can cause pneumonia. Healthy adults aged 18–50 who have not had a pneumococcal vaccine in the last 5 years may join.
Liverpool, North WestAges 18–50 - NCT06857227RecruitingPhase 1
Study of GNC-038 for active rheumatoid arthritis
This trial tests a new experimental antibody called GNC-038 for people with moderate to severe rheumatoid arthritis (RA) that hasn't responded well enough to standard treatments. It aims to see if targeting specific immune cells can reduce inflammation and improve symptoms.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT06837246Recruiting
Nutritional supplement study for cognitive health in adults
This study tests whether a nutritional supplement taken as 3 capsules daily for 12 weeks can improve cognitive function. It is designed for generally healthy adults who do not have certain medical conditions or take certain medications.
Addison, IllinoisAges 25–65 - NCT06859853RecruitingPhase 1
MWN109 injection safety study in healthy volunteers
This trial tests an investigational injection called MWN109 to see if it is safe and how the body processes it. It is for healthy adults only, and the results will help decide if the drug should be tested in people with medical conditions.
Melbourne, VictoriaAges 18–50 - NCT06877611RecruitingPhase 1
Testing the drug S-4321 in healthy volunteers for safety
This trial tests a new drug called S-4321 to make sure it's safe and well-tolerated in healthy people. You would take the drug and have regular check-ups to see how your body handles it.
Bayswater, VictoriaAges 18–65 - NCT07209306Recruiting
Psychological help for migrants in Italy: The ADVANCE trial
This trial tests two WHO-designed psychological programs (called SH+ and DWM) to help migrants in Italy cope with stress, anxiety, and depression. You will be randomly assigned to one of the programs to see if they improve your mental health and well-being.
Verona, ItalyAges 18 years+ - NCT07206407Recruiting
Study on how a test product affects your immune system
This trial tests whether a natural product can quickly change your immune system. It is looking for healthy adults who can keep a steady diet and lifestyle for the study period.
Klamath Falls, OregonAges 18–75 - NCT07211711Recruiting
Splint therapy for tinnitus linked to jaw joint issues
This trial tests if a custom mouthpiece (occlusal splint) can relieve ringing in the ears (tinnitus) that started along with jaw or face pain (TMD). It aims to see if stabilizing the jaw helps reduce both the noise in your ears and the discomfort.
São Paulo, São PauloAges 18 years+ - NCT07203144RecruitingPhase 2
Selenium for depression in teens
This study tests whether taking selenium (a mineral found in some foods) can help improve depression symptoms in young people. Participants will take selenium supplements and have their mood and brain activity monitored over time.
Chongqing, Chongqing MunicipalityAges 12–18 - NCT07203638Enrolling by invitation
Antibiotics to prevent pneumonia in ventilated patients
This trial tests whether giving preventive antibiotics to adults on breathing machines lowers the risk of developing pneumonia during ventilation. It is a double-blind study, meaning neither you nor your doctor will know if you receive the antibiotic or a placebo.
Banhā, Al-QalyubiaAges 18–70 - NCT07208279Recruiting
Cognitive Vitality Study: Can Axolt help memory?
This clinical trial is testing whether a special dietary supplement called Axolt can help keep your memory and thinking sharp as you get older. It is for healthy adults 55 and older who live independently and have no major memory problems.
West Palm Beach, FloridaAges 55 years+ - NCT07210684Recruiting
Dihydroberberine for blood sugar, appetite, and mood in prediabetes
This study tests a supplement called dihydroberberine (DHB) to see if it helps improve blood sugar control, appetite, and mood in adults with prediabetes. You will wear a small sensor to track your blood sugar and use a phone app to record what you eat.
Addison, IllinoisAges 35–65 - NCT07206745Recruiting
Chinese and Western medicine for severe pneumonia from drug-resistant bacteria
This trial tests a combination of traditional Chinese and Western medicine for adults with severe pneumonia caused by bacteria that are resistant to multiple antibiotics. It aims to see if this combined approach can improve treatment outcomes.
Zhengzhou, HenanAges 18–80 - NCT07207057RecruitingPhase 3
Platform trial testing multiple drugs for Parkinson's disease
This trial tests several experimental drugs at once to find new treatments for Parkinson's disease. If you have Parkinson's and take medication, you may be able to join and help speed up research.
LondonAges 30 years+ - NCT07207434RecruitingPhase 2
Probiotic supplement for pregnant women to improve gut health
This trial tests whether taking a probiotic during pregnancy can improve gut health in women living in areas where gut infections are common. It may help reduce harmful bacteria and related health problems for both you and your baby.
Matiari, SindhAges 18–49 - NCT07203339Recruiting
Home brain stimulation vs. duloxetine for fibromyalgia pain
This trial compares a non-invasive, at-home brain stimulation technique (tDCS) to the medication duloxetine for treating fibromyalgia pain. It aims to see if the brain stimulation works as well as the drug.
Porto Alegre, Rio Grande do SulAges 18–75 - NCT07209501Enrolling by invitation
Aromatherapy for stem cell transplant patients
This trial tests if inhaling essential oils can help patients who are having a stem cell transplant after high-dose chemotherapy. It aims to see if this is a feasible and acceptable way to feel better during treatment.
SingaporeAges 21–99 - NCT07204210Enrolling by invitation
Shockwave therapy vs. massage for plantar fasciitis
This study compares two treatments for plantar fasciitis—shockwave therapy and a type of deep massage. The goal is to see which works better for reducing foot pain.
KayseriAges 18 years+ - NCT05043116RecruitingPhase 2
Vitamin D for preventing asthma-like flare-ups in young children
This study tests whether a high-dose vitamin D supplement can help preschool children have fewer acute asthma-like symptoms (coughing, wheezing, or trouble breathing) that require hospital care. It may help by supporting the immune and airway system, but you can only join if the child meets several safety and treatment criteria.
Gentofte Municipality, GentofteAges 1 year–5.9 years - NCT06862596RecruitingPhase 2/Phase 3
Mexiletine for spinal and bulbar muscular atrophy
This trial tests whether mexiletine hydrochloride can help men with spinal and bulbar muscular atrophy (SBMA) by improving muscle strength and function. It may be an option if you have mild to moderate symptoms and meet heart and medication safety checks.
Bunkyō CityAges 18–80 - NCT06928844Recruiting
Low dose progesterone injection for ovulation
This trial tests whether a low dose of progesterone (a hormone) can help trigger ovulation in women who have trouble getting pregnant. It may offer a new option for women with infertility.
CairoAges 20–35
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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.