Clinical trials
Immunization; Infection clinical trials
Below are recruiting immunization; infection clinical trials, each written for real people, not researchers. We’re tracking 95 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04197596RecruitingPhase 1/Phase 2
BK infection immune-cell treatment after transplant or weak immunity
This Phase 1/2 study tests lab-made immune cells that specifically target BK virus in people whose BK infection keeps coming back or doesn’t improve. It may help by boosting the body’s ability to clear the virus, especially when standard antiviral treatments don’t work or can’t be tolerated.
San Francisco, CaliforniaAges 1 month–79 years - NCT05672927RecruitingPhase 4
Comparing HPV vaccine schedules: 2 doses vs 3 doses
This study compares how well your immune system responds to an HPV vaccine given as either 2 doses or 3 doses in people ages 27–45 who have never had the HPV vaccine. It may help improve HPV prevention strategies and guide the best dose schedule for adults.
Galveston, TexasAges 27–45 - NCT03266640RecruitingPhase 2
CMV cell therapy for difficult-to-treat viral infection
This trial tests an immune cell treatment (CMV-specific cytotoxic T cells) for people with a CMV infection that is not improving despite standard antivirals, or who cannot tolerate them. If eligible, the treatment aims to help the body control the virus after transplant-related immune problems.
Los Angeles, CaliforniaAges 1 month–79 years - NCT06180993Recruiting
Nirsevimab for infants born in Galicia
This trial tests a preventive medicine called nirsevimab given to infants to see how well it protects them from a common serious lung infection. It is offered as part of regular check-ups for babies born during a specific time period.
Santiago de Compostela, A CoruñaAges 1 day–2 years - NCT01780168Recruiting
Study of metabolism, infections, and immunity in mitochondrial disease
This study looks at how the body’s energy metabolism (metabolism), infection risk, and immune responses work in people with mitochondrial disease. It may help researchers understand why symptoms happen and how to better monitor health over time.
Bethesda, MarylandAges 2–115 - NCT07638670Recruiting
How mycobacterial infection affects the immune system
This study examines how different types of mycobacterial infections (including tuberculosis) affect your body's immune response. Researchers will compare immune function across different TB types and drug-resistance patterns to better understand the disease and improve treatment.
NingboAges 18 years+ - NCT04579588Recruiting
Study flu vaccine immunity in people after COVID-19
This study looks at how well your immune system (your body’s infection-fighting system) responds to a flu vaccine after you’ve had COVID-19. It may help doctors understand why some people have different protection after vaccines.
Palo Alto, CaliforniaAges 9–64 - NCT06401720Enrolling by invitation
Flu immune response study by age
This study looks at how the immune system reacts to the flu in people of different ages. If you have flu symptoms and don't have cancer or take immune-suppressing drugs, you may be able to join.
SödertäljeAges 18 years+ - NCT06841913RecruitingPhase 4
Woodsmoke, flu, and your nasal immune response
This study tests how breathing woodsmoke affects your nose's ability to fight off the flu virus. You will be exposed to woodsmoke and then given a live flu vaccine to see how your immune system responds.
Chapel Hill, North CarolinaAges 18–49 - NCT07347769Recruiting
BK virus risk study in kidney transplant patients
This study looks at the type and genetic makeup of BK virus in kidney transplant patients and their donors. It aims to find patients at higher risk for a kidney infection caused by the virus, which could help improve monitoring and treatment.
GrenobleAges 18 years+ - NCT07579312Recruiting
Blood Test for Diagnosing Belly Infections in Kids and Adults
This study tests whether a simple blood test measuring RNA levels can help doctors quickly identify intra-abdominal infections (infections inside the belly) in patients with abdominal pain. If successful, it could help doctors decide faster whether imaging or surgery is needed.
Washington D.C., District of ColumbiaAges 7 years+ - NCT05708508RecruitingPhase 3
Immune-guided vs universal medicine to prevent CMV after kidney transplant
This study compares two strategies to prevent a viral infection called CMV after kidney transplant. It tests whether an “immune-guided” approach (using your immune test results) can prevent CMV as well as or better than giving preventive antiviral medicine to everyone.
RouenAges 18–75 - NCT03266627RecruitingPhase 2
Adenovirus T-cell therapy for hard-to-treat virus after transplants
This trial tests a special immune-cell treatment made to fight adenovirus in people whose adenovirus infection keeps coming back or won’t improve after transplant. It may help control infection when standard antiviral medicines are not working or can’t be tolerated.
Los Angeles, CaliforniaAges 1 month–79 years - NCT06605755Recruiting
Testing a pentavalent vaccine in 2-month-old babies
This trial tests a combined vaccine that protects against five diseases (diphtheria, tetanus, whooping cough, polio, and Hib) in 2-month-old babies who have already received 4 doses. It aims to check the vaccine's safety and how well it builds immunity.
Nanjing, JiangsuAges 1.6 years–1.8 years - NCT06620185Recruiting
Flu immunity study: Vaccination and infection in lungs
This study looks at how your lungs and lymph nodes respond to flu infection and the nasal flu vaccine. It will help researchers understand how to create better protection against the flu.
LondonAges 18–55 - NCT06278337Recruiting
Moesin-associated immunodeficiency study
This study looks at a rare immune system condition caused by changes in the MOESIN gene. It aims to better understand the condition and may help develop future treatments.
Bethesda, MarylandAges 4–80 - NCT06749483Recruiting
Gut bacteria and infection in intensive care patients
This study looks at how gut bacteria affect severe infections in the ICU. It tests whether the microbiome can be a source of sepsis and a target for treatment. If you are critically ill or a long-term sepsis survivor, you might help find new ways to prevent infections.
Jena, ThuringiaAges 18 years+ - NCT01011712Recruiting
Study immune causes of severe viral infections
This study looks at why some people have severe or unusual viral infections, even when they do not have a known immune problem. It collects blood and tissue samples to better understand possible inherited immune issues and may help future diagnosis and treatment.
Bethesda, MarylandAges 2–100 - NCT05121025Recruiting
Study of stomach bacteria and gut microbes in Helicobacter infection
This study looks at how stomach bacteria (Helicobacter pylori) interact with the normal microbes in your gut. You may be asked to provide tissue, stool, and blood samples to help researchers understand infection and the body’s response.
Freiburg im Breisgau, Baden-WurttembergAges 18 years+ - NCT06859424RecruitingPhase 2
Testing a new GVHD prevention method after donor stem cell transplant
This trial tests a new way to prevent graft-versus-host disease (a common side effect of stem cell transplant) using a drug called cyclophosphamide after transplant. It is for adults with certain blood cancers who need a transplant from a partially matched unrelated donor.
Birmingham, AlabamaAges 18–66 - NCT06522880Recruiting
CMV transmission and immune tracking study
This study looks at how cytomegalovirus (CMV) spreads among children and staff at daycare centers. It uses a simple saliva test to check for the virus, which can help researchers better understand how to keep people healthy.
Worcester, MassachusettsAges 1 day–3 years - NCT07240350Recruiting
Hepatitis B immune response in surgery patients
This study looks at how the body's immune system responds in people with chronic hepatitis B who also need surgery on certain organs. The goal is to learn more about the immune reaction in tonsils, lymph nodes, or other tissues to help find better treatments for hepatitis B.
Guangzhou, GuangdongAges 18–75 - NCT06484335RecruitingPhase 1
Testing an HIV vaccine and antibody combo for treatment-free control
This study tests a combination of an HIV vaccine and an antibody infusion to see if your immune system can control HIV without daily pills. You would temporarily stop your HIV medication under close monitoring and restart if needed.
Pathum Wan, BangkokAges 18–60 - NCT07696884Recruiting
Vascular graft and endograft infection study
This study looks at how the body responds to infections in artificial blood vessels (vascular grafts or endografts). It may help understand why some people get infections and how to better treat them.
AarhusAges 18 years+
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Common questions
- Are there clinical trials for immunization; infection?
- Yes. Clin2 currently lists 95 recruiting immunization; infection 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 immunization; infection 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 immunization; infection 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.