Clinical trials
Placebo - Control clinical trials
Below are recruiting placebo - control clinical trials, each written for real people, not researchers. We’re tracking 3,962 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05230784Recruiting
Air purifier study for people with heart failure
This trial tests whether using air purifiers can help people with heart failure breathe better and feel better. It enrolls adults with recent heart failure and specific heart and lung conditions, while avoiding people with certain severe breathing problems or recent heart device treatment.
Thiruvananthapuram, KeralaAges 18 years+ - NCT05231785RecruitingPhase 1
Test drug safety for early Alzheimer’s memory trouble
This Phase 1 trial tests how safe and tolerable ALN-APP is in people with early Alzheimer’s-related mild memory impairment or mild dementia. It may help researchers find a treatment path for early Alzheimer’s, while closely monitoring side effects and basic health markers.
La Jolla, CaliforniaAges 18 years+ - NCT05233722Recruiting
Study of how mTOR affects insulin sensitivity in healthy men
This study looks at whether a body pathway called mTOR helps control how your body handles insulin and blood sugar. It’s done in healthy men to understand insulin sensitivity before testing approaches in people with health problems later.
CopenhagenAges 22–35 - NCT05240976RecruitingPhase 2
Testing add-on treatments for very treatment-resistant schizophrenia
This trial tests a combination of an NMDA-targeting medicine and an anti-inflammatory treatment for people with schizophrenia that has not responded well to several standard treatments, including clozapine. If you qualify, the goal is to see whether this combination improves symptoms more than usual care.
TaichungAges 18–65 - NCT05241405Recruiting
American ginseng to reduce fatigue after cancer treatment
This study tests whether taking American ginseng for 8 weeks can lessen long-lasting tiredness (fatigue) in people who recently finished certain breast or gynecologic cancer treatments. It may help reduce fatigue when other causes have been ruled out.
AmiensAges 18 years+ - NCT05243654RecruitingPhase 2
Metformin add-on for newly diagnosed leprosy treatment
This Phase 2 trial tests whether adding metformin to standard leprosy treatment (multidrug therapy, or MDT) helps people with multibacillary leprosy recover better and remain tolerable over 48 weeks. Participants also get monitored closely for side effects and safety issues.
Tangerang, BantenAges 18–65 - NCT05247125RecruitingPhase 4
Testing light or melatonin to help brain recovery after stroke
This study looks at whether changing your sleep timing using light therapy or melatonin can improve “brain rewiring” after an ischemic stroke. It mainly focuses on people who arrive very soon after stroke symptoms and who also meet specific safety and sleep/medication requirements.
Saint PetersburgAges 18–80 - NCT05257538Recruiting
Stool transplant to treat early C. difficile infection
This trial tests whether giving a stool transplant (also called FMT) can treat a new, early C. difficile infection in people who have improved while on antibiotics. It may help some people prevent the infection from coming back or worsening.
TurkuAges 18–120 - NCT05262010RecruitingPhase 3
HPV vaccine study for Chinese women, ages 9–45
This trial tests an 11-type HPV vaccine to prevent infection from multiple HPV strains. If you enroll, you’ll receive scheduled vaccine doses and have health and gynecologic check-ins to see how well the vaccine works and is tolerated.
Hechi, GuangxiAges 18–45 - NCT05264025RecruitingPhase 1/Phase 2
Fexofenadine for active rheumatoid arthritis
This Phase 1/2 study tests whether fexofenadine (an allergy medicine) can improve symptoms and inflammation in people with active rheumatoid arthritis. Participants may be assigned to different treatment groups, and the study looks at safety and early signs of benefit.
Banī SuwayfAges 18–60 - NCT05266040RecruitingPhase 2
Valacyclovir to reduce pain from infected tooth abscess
This Phase 2 study tests whether valacyclovir, an antiviral medicine, can help reduce moderate-to-severe pain from an acute infected tooth abscess. Participants also receive standard dental treatment, and the study looks at whether the added medicine helps with pain.
San Francisco, CaliforniaAges 18–80 - NCT05267886RecruitingPhase 4
Testing an inotrope medicine versus placebo in shock patients
This trial studies whether an inotrope medicine (a drug that helps the heart pump) works better than a placebo in adults in intensive care with cardiogenic shock. It may help doctors find safer, more effective treatment for this life-threatening condition.
Rochester, MinnesotaAges 18 years+ - NCT05268289RecruitingPhase 2
Trial for lupus kidney inflammation using LNP023
This Phase 2 study tests whether LNP023 can improve outcomes and safety in people with active lupus nephritis (lupus-related kidney inflammation), class III or IV. It may help by targeting the ongoing immune activity that is damaging the kidneys.
Phoenix, ArizonaAges 18–100 - NCT05272579RecruitingEarly Phase 1
Phage treatment to help gut development in very preterm babies
This early-phase trial tests whether giving a specific bacteria-fighting treatment (called bacteriophage) through the gut can help preterm babies’ intestinal development mature faster. It may help reduce early gut-related problems, but the study is mainly to check safety and early effects.
CopenhagenAges Any age - NCT05269628RecruitingPhase 2
Cannabidiol for multiple sclerosis sleep and pain patterns
This study looks at whether cannabidiol (CBD, a cannabis-related medicine) can improve symptoms in people with multiple sclerosis (MS), especially how sleep and pain type affect outcomes. It’s mainly for people with MS and ongoing moderate-to-severe pain, while carefully checking safety and medication interactions.
Ann Arbor, MichiganAges 18–65 - NCT05270525RecruitingPhase 2
Ensifentrine nebulizer trial to reduce COPD airway inflammation markers
This trial tests ensifentrine, given through a nebulizer, to see if it changes inflammation-related substances found in mucus/phlegm in people with COPD. It may help doctors understand whether this treatment improves COPD biology and could lead to better symptom control.
Birmingham, AlabamaAges 40–80 - NCT05275738Recruiting
Nicotinamide treatment for glaucoma progression
This trial studies whether nicotinamide (a form of vitamin B3/niacin) can slow or affect glaucoma progression. You may be eligible if you have newly diagnosed, untreated glaucoma or if you have treated glaucoma with measurable visual field changes.
StockholmAges 18 years+ - NCT05282277RecruitingPhase 4
Estradiol to improve brain and reward changes in midlife women
This study tests whether a hormone called estradiol (given as a patch and pill) changes how the brain and body respond to reward in some midlife women with low pleasure and/or psychosis symptoms during menopause transition. It may help researchers understand whether estrogen treatment can improve mood-related “reward” function in this group.
Chapel Hill, North CarolinaAges 45–55 - NCT05278494Recruiting
Dextromethorphan to reduce pain after knee replacement
This trial studies whether dextromethorphan (a medicine sometimes used for cough) can reduce pain after total knee replacement surgery. If you’re having this operation and meet safety criteria, it may help improve how you feel during recovery.
Los Angeles, CaliforniaAges 18 years+ - NCT05283382RecruitingEarly Phase 1
Cannabidiol trial for learning and anxiety
This early-phase study tests how cannabidiol (CBD) affects learning and anxiety. You may be able to join if you meet age and health requirements and have not used CBD or other cannabis recently.
Storrs, ConnecticutAges 18–50 - NCT05288179RecruitingPhase 3
Pirfenidone capsules for silicosis or coal dust lung disease
This Phase 3 trial tests whether pirfenidone slows or improves lung damage in people with silicosis or coal worker’s pneumoconiosis. It looks at both effectiveness and side effects, and uses lung function tests and lung scans to track changes over time.
BeijingAges 18–70 - NCT05290285Recruiting
Amino acids for anorexia nervosa, compared with placebo
This study tests whether taking certain amino acids can help people with anorexia nervosa. Participants are randomly assigned to amino acids or a placebo (a look-alike with no active ingredient) to see which works better.
Garda, ItalyAges 16–50 - NCT05292001RecruitingPhase 4
Single IV iron dose for anemia after leg or pelvic fractures
This trial tests whether giving a one-time IV iron treatment can improve anemia (low blood count) after surgery for a leg or pelvic fracture. It may help your body make red blood cells faster after blood loss from the injury and operation.
Portland, OregonAges 18–89 - NCT05293600RecruitingPhase 1/Phase 2
Rescue medicine trial for sleep apnea after other treatments fail
This trial studies a “rescue” set of medicines for obstructive sleep apnea when two common treatments haven’t worked well enough. If you still have frequent breathing pauses during sleep, the study may test whether these medicines can reduce them and improve safety and symptoms.
Boston, MassachusettsAges 21–70
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Common questions
- Are there clinical trials for placebo - control?
- Yes. Clin2 currently lists 3,962 recruiting placebo - control 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 - control 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 - control 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.