Clinical trials
Vaccination clinical trials
Below are recruiting vaccination clinical trials, each written for real people, not researchers. We’re tracking 599 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06926062Recruiting
Improving HPV vaccine communication in pharmacies
This study looks at whether training pharmacy staff in communication and vaccination workflows can improve HPV vaccine recommendations and uptake. If you are a parent or guardian of a child aged 9–17 who has not yet completed the HPV vaccine series, you may be eligible to participate.
University Park, PennsylvaniaAges 18 years+ - NCT07243236Recruiting
Do vaccine funding help more patients get shots?
This study looks at whether funding from the French National Health Insurance helps more people get recommended vaccines. It focuses on adults who need the pneumococcal vaccine and pregnant women who need the pertussis (whooping cough) vaccine.
Paris, IDFAges 18 years+ - NCT06530875Enrolling by invitation
Understanding vaccine concerns in pregnant women
This study looks at why some pregnant women might be unsure about getting vaccines. It aims to understand their concerns so that doctors and nurses can better support them.
VanAges 18–45 - NCT07509047RecruitingPhase 2
Cholera vaccine safety study for adults and children
This trial tests a new cholera vaccine in healthy people ages 1 to 45. It aims to see if the vaccine is safe and creates a good immune response.
Nairobi, Kenyatta National Hospital ComplexAges 1–45 - NCT06890403Recruiting
Can stories help older adults get vaccinated?
This trial tests whether watching personalized story videos along with informational videos can encourage older adults to get recommended vaccines. It aims to see if these videos are more effective than standard information alone.
New York, New YorkAges 50 years+ - NCT07002203RecruitingPhase 1/Phase 2
Personalized cancer vaccine trial for solid tumors
This trial tests a custom-made vaccine designed to train your immune system to fight your specific cancer. It may be an option if you have advanced cancer that stopped responding to treatment or early-stage cancer with a high risk of coming back.
BangkokAges 20 years+ - NCT06650956Recruiting
HPV vaccine and health education for teens in Laos
This trial offers HPV vaccination and sexual health education to 10-13 year old students and out-of-school youth in Laos. It aims to improve health knowledge and vaccination rates.
Muang Sing, ProvinceAges 10–13 - NCT07016152RecruitingPhase 1
A study of a Klebsiella vaccine for healthy adults
This trial tests a new two-part vaccine (CHO-V08) to prevent Klebsiella pneumoniae infection. It looks at safety and immune response in healthy adults aged 18 to 50.
TaipeiAges 18–50 - NCT07473999Recruiting
Vaccine protection in transplant recipients
This study looks at how well vaccines work in people who have received a bone marrow or solid organ transplant. Researchers will track infections and outcomes to understand vaccine effectiveness.
Pavia, LombardyAges Any age - NCT06029933Recruiting
Comparing two flu vaccines for older adults
This study compares two types of flu shots for people 65 and older to see which works better. If you are a Kaiser Permanente member and get your flu shot at a Kaiser facility, this trial looks at your health records to see how well the vaccine protected you.
Oakland, CaliforniaAges 65 years+ - NCT05655182RecruitingPhase 1/Phase 2
RSV vaccine study for infants and toddlers who may be at risk
This Phase 1/2 study tests an RSV vaccine (BLB-201) in infants and young children. It aims to see how the vaccine works and how safe it is, including in children who already have RSV antibodies or not.
La Mesa, CaliforniaAges 6 months–5 years - NCT07347002Enrolling by invitation
Observational study of chikungunya vaccine effectiveness in Brazil
This study looks at how well the VLA1553 vaccine prevents chikungunya disease in parts of Brazil where the vaccine is being offered as part of a pilot program. If you live in one of those areas and have had symptoms that might be chikungunya, this study will use your health records and blood tests to check how effective the vaccine is.
Belo Horizonte, Minas GeraisAges 18–59 - NCT03346772RecruitingPhase 4
Study immune response after your flu shot
This study looks at how your immune system responds after you get a routine flu vaccine. It may help researchers understand who builds strong protection and how vaccination works in everyday adults.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04166006RecruitingPhase 2
Vaccine made from your tumor cells after surgery for rare cancers
This trial tests a personalized vaccine made from your own tumor material, aiming to lower the chance cancer returns after surgery. It is for people whose rare cancers have been removed completely and who have no standard treatment available after surgery.
Meldola, FCAges 18 years+ - NCT04367883Recruiting
Study of flu shots and blood-pressure medicines in COVID
This study looks at people who were admitted to the hospital in Terrassa starting in March 2020. Researchers want to see whether having a flu vaccine and using certain blood-pressure medicines (ACE inhibitors or ARBs) is linked to how COVID infection develops.
Terrassa, BarcelonaAges Any age - NCT04446832Recruiting
Vaccine study for people waiting for liver transplant
This study tests a vaccine strategy for people who are being evaluated and waiting for a liver transplant. The goal is to see how well the immune system responds and how the results are interpreted before transplant.
LyonAges 18 years+ - NCT04523688RecruitingPhase 2
Dendritic cell vaccine made from your own tumor cells
This Phase 2 study tests a personalized glioblastoma vaccine made from your own immune cells (collected by apheresis) and your own tumor material. It’s meant to help your immune system recognize and attack the cancer after standard chemotherapy and radiation.
Meldola, FCAges 18 years+ - NCT04664569Recruiting
Study of treatments for bacterial meningitis in children
This study enrolls children and newborns with suspected or confirmed bacterial meningitis. The goal is to understand and improve care for serious infections that affect the lining around the brain.
CréteilAges 1 day–18 years - NCT04834869Recruiting
Track safety after COVID-19 vaccination in adults
This study follows adults who have already received a COVID-19 vaccine to monitor side effects and safety over time. Your participation helps researchers understand how the vaccine affects different people who are at higher risk due to their work.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04970836Recruiting
Hepatitis B revaccination for young adults in Taiwan
This study looks at how well your immune system responds after getting 1–2 extra doses of the hepatitis B vaccine. It may help doctors understand who needs revaccination and how to strengthen protection.
TaipeiAges 20–36 - NCT05183854RecruitingPhase 2
Vaccine study for CLL patients to prevent pneumococcal infections
This trial tests a series of two pneumococcal vaccines (PCV20 and PPSV23) in people with CLL-related immune weakness. It aims to see how well the vaccines work and how safe they are for preventing serious lung infections.
Salt Lake City, UtahAges 18 years+ - NCT05212792Recruiting
Study genes after COVID vaccine side effects
This study looks at genetic information to better understand why some people develop serious side effects after a COVID-19 vaccine, such as GBS, blood clotting with low platelets (VITT/TTS), or heart inflammation (myocarditis/pericarditis). Your information may help researchers learn who is at higher risk and improve future safety.
Vancouver, British ColumbiaAges 5–99 - NCT05215327RecruitingPhase 2
Higher-dose flu vaccine vs standard dose after lung transplant
This trial tests whether a higher dose of flu vaccine works better than the standard dose for people who have had a lung transplant. It may help improve protection against seasonal flu while monitoring safety.
Nashville, TennesseeAges 16 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
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Common questions
- Are there clinical trials for vaccination?
- Yes. Clin2 currently lists 599 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.