Clinical trials
Vaccination clinical trials
Below are recruiting vaccination clinical trials, each written for real people, not researchers. We’re tracking 601 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04853186Recruiting
Cholera vaccine program monitoring and household tracking
This study monitors how cholera vaccination efforts are working in areas where cholera is common. It checks people who come to cholera treatment centers and certain household contacts to see who has cholera and follows them for surveillance.
GomaAges Any age - NCT04910802RecruitingPhase 4
HPV vaccine with routine HPV screening for ages 22–26
This study looks at giving the HPV vaccine (Gardasil 9) to women while they go through Sweden’s routine HPV screening. It helps researchers understand how vaccine use alongside screening affects HPV infection and cervical cancer prevention.
StockholmAges 22–27 - NCT04999943RecruitingPhase 1
Testing two blood-cancer medicines plus eDC in older MDS patients
This early-phase study tests a combination of two standard medicines for myelodysplastic syndrome (MDS) along with an added eDC therapy in people age 60 and older. It may help improve blood counts or disease control for those who cannot or do not want stem cell transplant.
BeijingAges 60 years+ - NCT05000801Recruiting
DC-AML cells for AML after remission but with relapse risk
This study tests DC-AML immune cells to help people with acute myeloid leukemia (AML) who are in remission but still show signs of leftover cancer cells or relapse risk. It may help the immune system attack AML cells, especially when a stem cell transplant is not an option.
Beijing, Beijing MunicipalityAges 18–70 - NCT05013216RecruitingPhase 1
Vaccine trial for people at high risk of pancreatic cancer
This early-phase trial studies a long-peptide vaccine designed for people with certain genetic changes that raise the risk of pancreatic cancer. The goal is to help your immune system recognize and respond to cancer-related changes before cancer develops.
Baltimore, MarylandAges 40 years+ - NCT05027776RecruitingPhase 3
HPV vaccine study for healthy girls and young women
This trial studies whether a quadrivalent HPV vaccine is safe and helps the body build protection (immunity) against HPV. It enrolls healthy Chinese females who are not already treated for HPV-related infection.
Mianyang, SichuanAges 9–26 - NCT05041556Recruiting
Study of RTS,S malaria vaccine evidence in local areas
This study checks how well evidence about the RTS,S/AS01 malaria vaccine helps inform health policy. You may be included if you live in a specific local area and your child is the right age for the vaccine schedule, and you agree to participate.
KintampoAges 6 months–4.9 years - NCT05046002Recruiting
COVID vaccine heart inflammation symptom registry
This study is a “registry,” meaning it collects medical information about people who develop possible heart inflammation after a COVID-19 vaccine. It may help doctors understand how often this happens and which findings are linked to it.
Ottawa, OntarioAges 5 years+ - NCT05104515RecruitingPhase 1
First cancer vaccine test for advanced lung, ovarian, or prostate cancer
This Phase 1 study tests OVM-200, a new cancer vaccine, to see how it is tolerated and how it affects the immune system in people with advanced NSCLC, ovarian cancer, or prostate cancer. You may be eligible if your cancer has already had approved treatment(s) and no further standard options are planned within the first two months.
London, LondonAges 18–75 - NCT05197621Recruiting
Study how COVID-19 affects pregnancy and newborn outcomes
This study looks at how COVID-19 and COVID vaccination during pregnancy may affect mothers and newborns. Your team will collect health information around delivery to understand what outcomes are most common.
Baltimore, MarylandAges 14–55 - NCT05266664Recruiting
Studying immune development in preterm and vaccinated full-term babies
This study looks at how babies’ immune systems develop in early life and how they respond to immunization. It compares preterm infants with full-term infants whose mothers received Tdap during pregnancy, to learn what protection and immune responses to expect.
BredaAges 1 day–2 months - NCT05291676RecruitingPhase 2
Study how vaccines work in aging and frailty adults
This trial studies how well your immune system responds to a vaccine in people who are younger adults or, especially, older adults and those with frailty. Your participation may help researchers understand why vaccine responses can differ with age.
New Haven, ConnecticutAges 21 years+ - NCT05325632RecruitingPhase 2
HER2 breast cancer vaccine plus chemo and targeted antibodies
This Phase 2 study tests a personalized immune-therapy vaccine made from your immune cells, given with weekly paclitaxel and HER2-targeted antibodies (trastuzumab and pertuzumab). It aims to improve treatment outcomes for people with HER2-positive breast cancer before standard local treatment (like surgery and radiation).
Tampa, FloridaAges 18 years+ - NCT05344209RecruitingPhase 2
Pembrolizumab plus or minus vaccine for advanced lung cancer
This Phase 2 trial studies pembrolizumab (an immune-boosting cancer medicine) alone or with an added investigational UV1 vaccine in people with advanced non-small cell lung cancer. It aims to see whether adding the vaccine improves safety and effectiveness, especially in tumors with high PD-L1 levels.
Drammen, AkershusAges 18 years+ - NCT05384288Recruiting
How kids with blood cancers respond to the flu vaccine
This study looks at how children with blood cancers respond to the seasonal flu shot. It may help doctors understand what protection the vaccine provides for pediatric oncology patients.
Memphis, TennesseeAges Up to 18 years - NCT05452941Recruiting
Pneumonia vaccine study for hospitalized adults 65 and older
This study tests a pneumococcal vaccine designed for 20 types of bacteria in older adults who are hospitalized with suspected community-acquired pneumonia. It aims to see how the vaccine works in real-world care and whether it affects how pneumonia happens or progresses.
El Centro, CaliforniaAges 65 years+ - NCT05528952RecruitingPhase 2
Vaccine plus immunotherapy for unresectable liver cancer
This Phase 2 trial studies whether adding a cancer vaccine (to help the immune system recognize your tumor) to two medicines—atezolizumab and bevacizumab—can better control unresectable or advanced liver cancer. It’s for people who haven’t had prior whole-body (systemic) cancer treatment.
BesançonAges 18 years+ - NCT05539482Recruiting
Community education to help detect COVID-19 early and prevent illness
This study tests community-based health education in Hong Kong to help people recognize COVID-19 early, get vaccinated, and use everyday self-protective steps. It may help participants learn practical ways to lower their risk and respond sooner if symptoms appear.
Hung HomAges 12 years+ - NCT05553743Recruiting
Study of donated breast milk and how it affects child health
This study looks at breast milk donated for research and how it may relate to infant and child health. If you’re an adult who is breastfeeding and can donate extra milk, you may be able to participate.
San Diego, CaliforniaAges 18 years+ - NCT05554068RecruitingPhase 2
Testing the shingles vaccine response after bone marrow transplant
This Phase 2 study looks at how well the shingles vaccine works in people who had an allogeneic (donor) stem cell transplant. It aims to measure the body’s immune response to the vaccine and check that it’s safe in this recovery period.
Maywood, IllinoisAges Any age - NCT05562323Recruiting
Study of immune response after monkeypox vaccination
This is an observational study that follows adults after they get a monkeypox vaccine to learn how their immune system responds. The results may help researchers understand what types of protection the vaccine creates.
Badalona, BarcelonaAges 18 years+ - NCT05580458RecruitingPhase 1/Phase 2
Shingles vaccine study for adults with well-controlled HIV
This Phase 1/2 study tests how safe and how well a shingles (varicella zoster) vaccine works in adults living with HIV whose immune status is measured by CD4 count, plus a healthy comparison group. It may help researchers understand whether the vaccine can safely boost protection in people with HIV.
Bethesda, MarylandAges 18 years+ - NCT05585983RecruitingPhase 4
Flu shot in newly diagnosed type 1 diabetes patients
This trial checks whether giving a flu vaccine to people who were just diagnosed with type 1 diabetes affects their health and immune response. It may help doctors understand if flu vaccination is safe and useful soon after diagnosis.
AalborgAges 7–17 - NCT05616546RecruitingPhase 4
Study of immune responses during and after flu infection
This study looks at how your immune system (your body’s infection-fighting system) responds during and around the time of a flu illness. It’s meant to help researchers better understand immune changes in healthy adults and may guide future flu care.
Atlanta, GeorgiaAges 18–64
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Common questions
- Are there clinical trials for vaccination?
- Yes. Clin2 currently lists 601 recruiting vaccination 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 vaccination 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 vaccination 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.