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
- NCT05269459RecruitingPhase 2
Cannabidiol (CBD) for PTSD symptoms in adults
This study tests whether CBD, a non-psychoactive compound from cannabis, can help reduce symptoms of post-traumatic stress disorder (PTSD) in adults. If you have PTSD and are interested in a non-traditional treatment option, this might be worth exploring.
Omaha, NebraskaAges 21–65 - 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 - NCT05288790RecruitingPhase 2
Study how gut chemicals and alcohol affect heart risk in HIV
This Phase 2 study looks at how “microbiome metabolites” (chemicals from gut bacteria) and alcohol may affect heart and blood vessel risk in people living with HIV. If you qualify, you may be asked to follow a study plan to see how these factors change health markers related to cardiovascular disease.
Nashville, TennesseeAges 18–89 - NCT05285683RecruitingPhase 2
Study brain dopamine in people with chronic pain
This Phase 2 study looks at how a brain chemical called dopamine is involved in long-lasting pain. You may be able to join if you have chronic pain for over a year and your pain score is high enough, and if MRI and health checks are safe for you.
Rochester, New YorkAges 18 years+ - NCT05289063RecruitingPhase 1
Study new sleep apnea and blood vessel function
This Phase 1 study looks at how blood vessel function is affected by obstructive sleep apnea in adults who are newly diagnosed and have not used CPAP. It may help researchers understand the early effects of sleep apnea and guide future treatments.
New York, New YorkAges 18 years+ - NCT05275972RecruitingPhase 3
Compare cornea surgery thickness results for FECD
This Phase 3 trial compares outcomes from two cornea transplant procedures in people with FECD, a disease that makes the cornea swell and affect vision. It may help you and others by identifying which approach best supports clear vision and stable corneal thickness after surgery.
Palo Alto, CaliforniaAges 18 years+ - NCT05267821RecruitingPhase 2/Phase 3
Testing anakinra to reduce inflammation in pediatric sepsis MODS
This study tests whether a medicine called anakinra can “turn down” harmful inflammation in children with severe illness from sepsis. It aims to improve organ function when multiple organs are starting to fail.
Birmingham, AlabamaAges 1 day–17 years - 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+ - NCT05283421Recruiting
Improving tests for abnormal cervical cells after menopause
This trial is looking at better ways to diagnose changes in the cervix in women after menopause. It may help by improving how doctors decide which cervical abnormalities need attention and follow-up.
RandersAges 50 years+ - NCT05266417RecruitingPhase 2
Nasal insulin plus glutathione for Parkinson’s symptoms
This Phase 2 study tests whether adding nasal insulin and glutathione can improve Parkinson’s disease symptoms and function. You would use study medicine through the nose while keeping your other treatments mostly the same during the trial.
Davie, FloridaAges 30 years+ - NCT05303519RecruitingPhase 3
Safusidenib for IDH1-mutant glioma after main treatment
This Phase 3 trial tests safusidenib, a targeted medicine, to help stop or slow the return of certain brain tumors with an IDH1 mutation. It focuses on people after initial treatment (surgery and/or radiation and temozolomide), aiming to improve outcomes during maintenance therapy.
Birmingham, AlabamaAges 18 years+ - 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 - NCT04573673Recruiting
Tapping the shin nerve to help bladder control in MS
This study tests a noninvasive nerve stimulation applied to the lower leg to improve bladder emptying problems in people with multiple sclerosis. It may help reduce bladder dysfunction while you keep using clean intermittent self-catheterization.
LilleAges 18–65 - NCT05201469RecruitingPhase 2
VIB4920 for lupus kidney inflammation not responding well enough
This Phase 2 study tests VIB4920 to treat active lupus nephritis, a type of kidney disease caused by lupus. It may help reduce kidney inflammation and improve kidney outcomes in people with active disease despite standard care.
La Jolla, CaliforniaAges 18 years+ - NCT05232916RecruitingPhase 3
Vaccine for HER2-positive breast cancer after standard treatment
This trial tests a vaccine (GLSI-100) that may help prevent the return of HER2-positive breast cancer. It is given to patients who still had cancer cells after initial treatment with trastuzumab, or who had stage III disease and achieved a complete response.
Mobile, AlabamaAges 18–100 - 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+ - NCT05222529RecruitingPhase 2
Study medicine dosing in children with asthma using inhaler tests
This Phase 2 study checks how glycopyrronium bromide works in children with asthma, including its safety and how well inhaler dosing is tolerated. It also uses breathing tests and inhaler technique checks to confirm your child meets key asthma and lung function requirements.
RousseAges 6–11 - NCT05211401RecruitingPhase 2
Testing rituximab for heart attack patients
This study tests whether adding the drug rituximab to standard heart attack treatment can reduce damage to the heart muscle after a heart attack. Rituximab is usually used for immune system conditions, and it may help calm inflammation and protect the heart. Participants must have a certain type of heart attack and be treated quickly.
ParisAges 18 years+ - NCT05230758RecruitingPhase 3
Metformin trial for brain tumor survivors’ brain and behavior
This Phase 3 study tests whether metformin can improve brain function, behavior, and thinking in children and teens who were treated for certain brain tumors. You may be able to join if you meet age, time-since-treatment, language, and health/lab safety requirements.
New Lambton Heights, New South WalesAges 7–21 - 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 - NCT05224726Recruiting
Platelet-rich plasma for healing after C-section
This study tests whether a treatment made from your own platelets (platelet-rich plasma) can help the uterus heal after an elective C-section. You may be considered if you are full-term and having a planned C-section.
Ramat Gan, CenterAges 18–52 - NCT05248620Recruiting
Antibiotics to prevent infections in hemodialysis catheters
This trial tests whether taking preventive antibiotics (or a placebo sugar pill) can lower the risk of infections in people who receive hemodialysis through a catheter. It may help protect you from serious catheter-related infections, but you must be able to follow the study’s medicine and consent rules.
Copenhagen, Capital RegionAges 18 years+ - NCT05207085RecruitingPhase 2
Testing valbenazine for adult hair-pulling disorder symptoms
This Phase 2 study tests whether valbenazine can reduce symptoms of trichotillomania (a hair-pulling disorder) in adults. You may be able to join if your symptoms cause major distress or interfere with daily life.
New Haven, ConnecticutAges 18–65 - NCT05247255Enrolling by invitationEarly Phase 1
Nerve block during hip replacement surgery
This early-stage study tests whether a specific nerve block to numb the lower back area can make total hip replacement surgery more comfortable. It looks at patients who are having planned (elective) hip replacement and whether the nerve block is safe and works well.
Santa Monica, CaliforniaAges 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.