Clinical trials
Humans clinical trials
Below are recruiting humans clinical trials, each written for real people, not researchers. We’re tracking 1,228 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04647240RecruitingPhase 2
Drug trial for stubborn leg ulcers that won’t heal
This Phase 2 trial tests MTX-001 to help heal “venous stasis ulcers,” which are open sores caused by weak leg vein circulation. It may be an option if you’ve tried standard high-compression care for weeks and your ulcer is still not healing.
Tucson, ArizonaAges 18 years+ - NCT04666636RecruitingPhase 2
Test a drug idea to activate fat that burns energy
This Phase 2 study tests whether a medication approach can activate “beige” fat, which may help the body burn more energy. It mainly looks for people with higher body weight and prediabetes who are not on diabetes medicines.
Lexington, KentuckyAges 35–65 - NCT04613583Recruiting
Study of fetal tissue collected during normal pregnancy
This study asks pregnant people with a normal ultrasound to join research where fetal tissue may be collected at an important point in pregnancy (7–20 weeks). It aims to better understand fetal development, and participation requires being able to understand the study in English.
AberdeenAges 16 years+ - NCT04645602RecruitingPhase 2
Study of pembrolizumab and lenvatinib for lung papillomas
This early-phase trial tests how well pembrolizumab plus lenvatinib can treat respiratory papillomas that have spread to the lungs. It may help people whose lung disease is caused by human papillomavirus (HPV).
New Haven, ConnecticutAges 18 years+ - NCT04650256Recruiting
Chinese herbal add-on after breast surgery
This trial looks at whether a Chinese herbal complementary treatment used alongside standard radiation after breast cancer surgery can improve health outcomes. It is for women newly diagnosed with certain stages of breast cancer who are planning chest-wall radiation.
Miami, FloridaAges 18 years+ - NCT04545112Enrolling by invitation
Testing a new heart bypass graft in people needing multi-vessel CABG
This study tests a new way to connect a bypass graft during heart bypass surgery for people with blocked heart arteries. The goal is to see if the new graft can be safely placed and works well enough to improve outcomes compared with the standard approach.
LeuvenAges 18 years+ - NCT04500119Enrolling by invitation
Study of brain activity during memory tasks in epilepsy
This study looks at how brain cells work during a simple memory task in people with hard-to-control epilepsy who are being monitored in the hospital. You may help researchers understand the brain mechanisms of memory, which could guide better treatments in the future.
Los Angeles, CaliforniaAges 13 years+ - NCT04419870Recruiting
Acute infections in people with mitochondrial disease
This study looks at how people with mitochondrial disease respond to acute infections like COVID-19 or the flu. It aims to understand how infections affect the body and to find better ways to care for patients.
Bethesda, MarylandAges 2 months–115 years - NCT04396899RecruitingPhase 1/Phase 2
Stem cell heart patch for advanced heart failure
This early-phase study tests a lab-made heart tissue (“engineered myocardium”) placed surgically to help the heart work better in people with advanced heart failure. It mainly checks safety first, and also looks for signs the patch can improve heart function in selected patients.
Göttingen, Lower SaxonyAges 18–80 - NCT04413994Recruiting
Exclusive breast milk study in preterm babies
This study tests whether feeding extremely preterm babies only human milk (no formula) affects early health outcomes, including risks that may develop later. It also includes term-born babies for comparison. The study is mainly about feeding and safety, and you would follow the study’s feeding plan.
Innsbruck, TyrolAges 1 day–5 years - NCT04263792RecruitingPhase 1
Scan trial to track a new tracer in suspected bacterial infections
This Phase 1 study uses a special scan tracer ([18F]F-TMP) to see how it moves in the body and how fast it changes in people with suspected or known bacterial infections. It’s mainly testing the scan’s behavior and safety, which may help future infection-targeting imaging.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04356287RecruitingPhase 1/Phase 2
Cord cell treatment for severe systemic sclerosis symptoms
This early-phase study tests whether umbilical cord-derived “cord blood–type” cells can reduce or improve severe systemic sclerosis (a type of hardening/scarring disease of connective tissue). It may help people whose current standard treatments haven’t worked or caused side effects.
Montreal, QuebecAges 18 years+ - NCT04239157RecruitingPhase 2
Canakinumab shot for lower-risk MDS and related blood disorders
This trial tests canakinumab, a medication that blocks inflammation, given as a skin (subcutaneous) injection. It is for adults with lower-risk myelodysplastic syndromes (MDS) or a related condition (chronic myelomonocytic leukemia or CCUS) to see if it can improve blood counts and reduce problems like anemia or transfusion needs.
Houston, TexasAges 18 years+ - NCT04178174RecruitingPhase 3
Boost radiation for HPV throat cancer with shorter treatment
This trial studies whether adding a precise “extra boost” to radiation can work as well as (or better than) standard radiation for HPV-related oropharynx cancer, while keeping the overall treatment shorter. It may help improve tumor control while aiming for manageable side effects.
London, OntarioAges 18 years+ - NCT04232566Recruiting
Study links in obesity surgery and liver scarring
This study looks at how the immune system relates to liver scarring in people with obesity who are getting gastric bypass surgery. If you qualify, you may help doctors better understand liver disease and who is at higher risk.
Scottsdale, ArizonaAges 30–70 - NCT04159675Recruiting
Burosumab and vitamin D for kids needing skull surgery
This study tests whether burosumab and vitamin D affect bone cells before and around the time of craniosynostosis surgery in children. It may help researchers understand treatment options for rare calcium and phosphate bone disorders that can affect skull growth.
BronAges 4 months–18 years - NCT04226313Recruiting
Home self-swab tests for people not doing cervical screening
This study looks at whether a home self-sampling swab can help people who haven’t joined cervical cancer screening in the past few years. If you qualify, you’ll be asked to collect a swab yourself so it can be tested, aiming to make screening easier to access.
OlomoucAges 30–65 - NCT04232917RecruitingPhase 4
Testing a treatment to help clear genital high-risk HPV
This trial studies 2LPAPI® to see if it helps the body clear high-risk HPV infections in the cervix. It may be an option if you have a current HPV infection with mild/early abnormal cervical findings and can complete follow-up for about a year.
BrusselsAges 25–45 - NCT04049604Recruiting
Study of pregnancy cancer risk after unusual DNA screening
This study follows pregnant people who had unusual noninvasive prenatal blood test results, to better understand the natural course and possible causes, including concerns about maternal cancer. You may join during pregnancy or up to 2 years after delivery, and you would share medical information and undergo follow-up visits.
Bethesda, MarylandAges 18–100 - NCT04066127Enrolling by invitation
Heart transplant study comparing two types of heart storage
This trial tests whether using a different method to store a donated heart before transplant improves outcomes. It compares “non-ischemic preservation” versus standard cold storage for people getting a new heart.
Lund, Skåne CountyAges 18 years+ - NCT04131413RecruitingPhase 1
HPV vaccine given through the skin for HPV16 cervical disease
This early-phase study tests a vaccine designed to help your immune system fight HPV16, a type of human papillomavirus linked to abnormal cells in the cervix. You may or may not be living with HIV, and the team will check safety and immune response after giving the vaccine in a specific way.
Birmingham, AlabamaAges 19 years+ - NCT04101188Recruiting
Study how extra potassium affects blood vessels
This study looks at how eating more potassium may protect blood vessels in healthy people. You may be eligible if you have normal blood pressure and a normal heart rhythm test, and you do not have certain health conditions.
Newark, DelawareAges 18–45 - NCT04053478Recruiting
Testing common blood-pressure drugs on uterine and umbilical muscle
This study tests how several medicines used for blood pressure affect muscle “tightening” in tissue taken during planned C-sections. It’s an in-vitro (lab) study, so it mainly helps doctors understand how to prevent weak uterine contractions (uterine atony) during delivery.
Toronto, OntarioAges 19–40 - NCT04142697Recruiting
Study of how you feel motion with sight and balance
This study looks at how people with normal health—and people with balance (vestibular) loss—perceive motion using their eyes and inner ear. You may help researchers understand how vision and balance systems work together.
Rochester, New YorkAges 18–80
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Common questions
- Are there clinical trials for humans?
- Yes. Clin2 currently lists 1,228 recruiting humans 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 humans 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 humans 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.