Clinical trials
General Population (no Specific Condition or Disease) clinical trials
Below are recruiting general population (no specific condition or disease) clinical trials, each written for real people, not researchers. We’re tracking 10,565 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05746039RecruitingPhase 1/Phase 2
Testing semaglutide for advanced lung disease
This study checks whether semaglutide is safe and feasible for people with advanced lung diseases and higher body weight. It may help by testing a structured treatment approach, but it includes several health and safety limits.
Philadelphia, PennsylvaniaAges 18–80 - NCT05727852Enrolling by invitation
Breath and heart tests to study lung disease stiffness
This study uses breath analysis and heart/electrical heart testing to look at how stiff the arteries are in people with long-term lung conditions. It may help researchers better understand lung disease effects on the cardiovascular system.
MoscowAges 18 years+ - NCT05656378Recruiting
Storing samples to study how the body interacts with microbes
This study creates a storage bank of biological samples like blood, stool, and tissue. Researchers will use these samples to learn how the body interacts with the natural microbes that live in and on us, which may help improve treatments for many diseases.
Bethesda, MarylandAges Any age - NCT05659901Recruiting
Study tracks symptoms and test results in PLP1-confirmed PMD
This study follows children with Pelizaeus-Merzbacher disease (PMD) who have a specific genetic change (PLP1 duplication). It aims to learn which body measurements (“biomarkers”) and symptoms change over time, to better understand disease progression.
Atlanta, GeorgiaAges 6 months–17 years - NCT05653466RecruitingPhase 2
Telehealth therapy schedule for stroke-related aphasia patients
This trial tests an approach that adjusts therapy scheduling for people with long-lasting (over 6 months) language problems after a stroke. It may help some patients by matching the therapy timing to what works best for them.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT05653440RecruitingPhase 2
Naming therapy training for chronic post-stroke aphasia
This Phase 2 trial studies a speech therapy approach that teaches people with aphasia how to name words, using different learning methods. You may be able to join if your language problem started after a stroke and has lasted more than 6 months.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT05655650Recruiting
Finding blood or brain markers in Alzheimer’s disease
This study looks for “biomarkers,” or measurable signs, that help identify Alzheimer’s disease. It may help doctors diagnose Alzheimer’s more accurately by comparing people with Alzheimer’s to others where the diagnosis is different.
Hong Kong, Hong HongAges 20 years+ - NCT05568498RecruitingPhase 2
Probiotic trial for depression in Parkinson’s disease
This Phase 2 study tests whether taking probiotics can improve depression and mood symptoms in people with Parkinson’s disease. It’s meant for those with mild to moderate depression and stable Parkinson’s and mood treatments.
Vancouver, British ColumbiaAges 40–80 - NCT05552157RecruitingPhase 2/Phase 3
Study of treatments for early onset Alzheimer's caused by genetic mutations
This trial tests potential treatments for people who are at risk for or have early onset Alzheimer's disease due to a specific genetic mutation. It aims to find treatments that could slow or prevent symptoms.
Birmingham, AlabamaAges 18 years+ - NCT05499091Recruiting
Study rare disease genetics using family and health data
This study tries to find genetic causes for rare diseases that are not yet understood. It uses a national rare-disease data bank and collects consent from patients and sometimes close family members.
AngersAges Any age - NCT05462106RecruitingPhase 1/Phase 2
ACI-24.060 study for early Alzheimer’s in adults and Down syndrome
This Phase 1/2 study tests an Alzheimer’s treatment called ACI-24.060 to see if it affects the disease in people with early Alzheimer’s changes. It includes two groups: older adults with early symptoms and people with Down syndrome who also show Alzheimer’s-related changes on brain scans.
Phoenix, ArizonaAges 35–85 - NCT05432349Recruiting
Rett syndrome genetic registry for MECP2 changes
This trial is a registry that collects health and genetic information from people with Rett syndrome. It may help researchers better understand how MECP2 loss-of-function changes lead to symptoms and how to support patients.
Birmingham, AlabamaAges birth–99 years - NCT05435547RecruitingPhase 4
Pre-surgery steroid medicine for autoimmune thyroid disease
This trial tests whether taking corticosteroids (anti-inflammatory medicines) before thyroid surgery is safe and helpful for people with autoimmune thyroid disease. It focuses on Graves’ or Hashimoto’s disease patients who are planning total thyroid removal.
Indianapolis, IndianaAges 18 years+ - NCT05398783Recruiting
Study of how metabolism and body composition change over time
This natural history study follows people to understand how metabolism and body composition vary in health and disease. It may help researchers better measure metabolic changes and understand who is at risk as health and treatments change.
Bethesda, MarylandAges 2–99 - NCT05386108RecruitingPhase 1/Phase 2
Test abemaciclib plus elacestrant for breast cancer brain spread
This trial studies whether the combination of abemaciclib and elacestrant can slow or shrink ER-positive, HER2-negative breast cancer that has spread to the brain. It is designed for people whose cancer has progressed despite prior hormone (endocrine) treatment.
Fullerton, CaliforniaAges 18 years+ - NCT05364294Recruiting
Molecular testing for rare inflammatory (autoinflammatory) diseases
This study uses lab testing to better identify the cause of certain rare inflammatory conditions that happen without infection. Finding the cause may help doctors choose more targeted care for you or your child.
ParisAges 1 week–120 years - NCT05368038Enrolling by invitation
Newborn screening program for babies up to 4 weeks old
This trial tests a flexible newborn screening process that looks for certain conditions early in life. It may help by catching problems sooner, when treatment can be started earlier.
Brooklyn, New YorkAges Up to 4 weeks - NCT05370014Recruiting
Partner support program for chronic health conditions
This study tests a program that helps patients with chronic health conditions and their care partners work together to improve their health and well-being. If you live in a rural or underserved area in South Carolina and have a condition like diabetes or high blood pressure, you and your support person might be able to join.
Columbia, South CarolinaAges 18 years+ - NCT05333471RecruitingPhase 1/Phase 2
Fecal transplant for chronic bowel inflammation in CGD
This study tests whether transplanting stool microbiome (fecal microbiota transplant) can improve chronic colitis in people with chronic granulomatous disease (CGD). It aims to reduce bowel inflammation and symptoms by changing gut bacteria.
Bethesda, MarylandAges 10–60 - NCT05294107Recruiting
Intestinal organoid study in digestive biopsies
This study collects small tissue samples (biopsies) during a routine endoscopy to create organoids—miniature versions of your intestine grown in a lab. The goal is to better understand digestive diseases and test potential treatments. You may be eligible if you're already scheduled for an endoscopy.
RennesAges 18–75 - NCT05283993Recruiting
Hospital study following people with plasma cell disorders
This is a hospital-based study that follows people with plasma cell disorders to better understand these conditions. It mainly gathers information from patients who are confirmed to have one of several related diseases.
BeijingAges Any age - NCT05216133Enrolling by invitation
Study WTC lung and reflux markers using noninvasive tests
This study looks at blood “biomarkers” and breathing/acid-reflux measurements in FDNY workers exposed to the 9/11 site to understand airway disease, Barrett’s esophagus, and reflux. It may help identify which people have hidden (underdiagnosed) reflux or lung involvement after 9/11.
New York, New YorkAges 37–90 - NCT05236062Recruiting
Exercise during steroid treatment for GVHD
This study looks at whether doing moderate-to-vigorous exercise can reduce complications from corticosteroids in people with newly diagnosed GVHD. It may help your body tolerate steroids better, while checking exercise safety during treatment.
Boston, MassachusettsAges 18 years+ - NCT05183165Recruiting
Study measures copper levels in breast milk for Wilson’s disease
This study measures how much copper is present in breast milk in people with Wilson’s disease. It aims to provide safer guidance for breastfeeding during treatment, including during pregnancy.
ParisAges 18 years+
Hear when a new General Population (no Specific Condition or Disease) trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for general population (no specific condition or disease)?
- Yes. Clin2 currently lists 10,565 recruiting general population (no specific condition or disease) 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 general population (no specific condition or disease) 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 general population (no specific condition or disease) 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.