Clinical trials
Immunization; Infection clinical trials
Below are recruiting immunization; infection clinical trials, each written for real people, not researchers. We’re tracking 92 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT05858502Recruiting
Study immune response to COVID-19 and improve testing
This study looks at how the immune system in the body responds to different COVID-19 virus variants. It may help improve how COVID-19 is diagnosed by comparing people who are currently infected and those who are not.
ParisAges 18–65 - NCT06980480RecruitingPhase 3
Gammagard to prevent infections in multiple myeloma
This study tests if adding Gammagard (a type of antibody therapy) to your multiple myeloma treatment with Tecvayli can help prevent serious infections. You may qualify if you recently started Tecvayli and are still responding to it.
Mobile, AlabamaAges 18 years+ - NCT01386437Recruiting
Study immune problems and fungal infections
This study looks at how immune system problems relate to fungal infections, using medical records and lab tests on blood and tissue. It may help researchers understand the cause of these infections—especially for people with inherited immune conditions—and improve future care.
Bethesda, MarylandAges 1 day–99 years - NCT04875819RecruitingPhase 4
HIV vaccine safety check for meningitis and pneumonia shots
This trial studies how safe and how well the body’s immune system responds to meningococcal and pneumococcal vaccines in adults living with HIV. It may help confirm these vaccines work properly and are safe for people on HIV treatment.
HvidovreAges 18 years+ - NCT07770347Enrolling by invitation
Sepsis and the immune system study
This study looks at how the immune system works in people who are critically ill with sepsis. By understanding these changes, doctors hope to find better ways to treat this serious condition.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06810934RecruitingPhase 1/Phase 2
New COVID-19 vaccine study for those with prior mRNA vaccines
This study tests a new type of COVID-19 vaccine that is designed to train your immune system to make stronger, longer-lasting protection. You may be able to join if you are 40–64, have already had at least two doses of a mRNA COVID-19 vaccine (Pfizer or Moderna) more than 4 months ago, and are generally healthy.
Los Angeles, CaliforniaAges 40–64 - NCT07512518Recruiting
Study of Long-Term Viral Brain Infections
This study follows patients with chronic viral infections affecting the brain and spinal cord. Researchers will collect spinal fluid samples and track your health over one year to better understand these infections and improve care.
Beijing, Beijing MunicipalityAges 14 years+ - NCT07220915RecruitingPhase 3
Study of Panzyga to prevent infections in people with weak immune systems
This trial tests if a medication called Panzyga can help prevent infections in people with autoimmune conditions who have low antibody levels after B-cell therapy. It may be an option if you have a condition like multiple sclerosis, rheumatoid arthritis, or lupus.
Glendale, ArizonaAges 18 years+ - NCT07137247Recruiting
How the immune system changes over time in chronic hepatitis B
This study tracks how the immune system works in people with chronic hepatitis B who haven't taken antiviral medication in the last 6 months. It aims to understand the natural history of the infection without treatment.
Guangzhou, GuangdongAges 1–80 - NCT02299921Recruiting
Alcohol and drug effects on immunity in ICU breathing patients
This study looks at how alcohol and other drugs can affect the body’s immune system in people who are very sick in the ICU due to breathing problems. It may help doctors better understand immune changes during critical illness and respiratory failure.
Aurora, ColoradoAges 18–90 - NCT03684655RecruitingPhase 2
PET-MR scan study of immune activity in people with HIV
This Phase 2 study uses a special whole-body scan (PET-MR) to measure immune activity in people living with HIV. It may help researchers understand how well the immune system responds and how to better track HIV-related inflammation.
San Francisco, CaliforniaAges 18 years+ - NCT06667063Recruiting
Immune response study for COVID-19 and flu
This study looks at how your immune system responds to COVID-19 or the flu. It may help researchers understand these infections better, whether you are currently sick or healthy.
Wuhan, HubeiAges 18 years+ - NCT04815096RecruitingPhase 2
PET scan study of immune activity after COVID-19
This Phase 2 study uses a special PET scan to look at how active your immune system is after a recent COVID-19 infection. The goal is to understand what the immune response looks like and whether this imaging approach could help guide care.
San Francisco, CaliforniaAges 18 years+ - NCT06998264Recruiting
Immune response to flu in young children
This study looks at how children's immune systems fight the flu in the nose and throat. It aims to understand why some children get very sick and others don't, which could help create better treatments and vaccines.
GenevaAges 2–5 - NCT06998251Recruiting
Immune response to strep pneumonia in older adults
This study looks at how the immune system in the nose and throat reacts to Streptococcus pneumoniae bacteria and viruses in adults aged 60-85. It may help researchers find better ways to prevent or treat pneumonia.
GenevaAges 60–85 - NCT06539832Recruiting
Gut bacteria and immunity in people with an abnormal blood protein
This study looks at how your gut bacteria (intestinal flora) and immune system relate to a condition called monoclonal gammopathy, where an abnormal protein is found in the blood. The trial will check samples from your blood, plasma, and stool to understand these connections.
Guanzhou, GuangdongAges 45 years+ - NCT07596316Recruiting
Understanding Immune Response to Chlamydia Infection
This study examines how your body's immune system responds to a Chlamydia trachomatis infection by analyzing urine and blood samples. Researchers hope to better understand infection patterns and improve future treatments.
Antwerp, AntwerpAges 18 years+ - NCT07578298RecruitingPhase 4
RSV protection for aboriginal infants
This study tests an RSV antibody shot that helps protect babies from severe RSV. It aims to see how well this preventive shot works in Aboriginal and Torres Strait Islander infants when given around 6-9 months of age.
Darwin, Northern TerritoryAges 6 months–9 months - NCT06776692Recruiting
Dengue vaccine immunity study for all ages
This study looks at how the dengue vaccine works in people with and without past exposure to dengue or similar viruses like yellow fever or Zika. Volunteers receiving the dengue vaccine will give blood samples to help researchers understand the immune response.
Negrar, VRAges 4 years+ - NCT06774235RecruitingPhase 3
Interferon gamma to prevent infections in ICU patients
This trial tests if a drug called interferon gamma can help prevent new infections in ICU patients with a weakened immune system. It may help people who have been in the ICU for at least a week and have had multiple organ failure.
AngersAges 18 years+ - NCT06538961Recruiting
Immune registry for BK virus in kidney transplant patients
This study is creating a registry to learn how the immune system responds to BK virus in people who have recently received a kidney transplant from a deceased donor. Researchers hope this information will help improve treatment for BK virus infections.
Richmond, VirginiaAges 18 years+ - NCT05952804RecruitingPhase 2
IVIG to help prevent infections after CAR-T treatment
This Phase 2 study tests whether IVIG (a blood product that helps fight infections) can lower infection risk after you receive CD19 CAR-T therapy. It’s meant to help protect you during the vulnerable period after CAR-T treatment.
Duarte, CaliforniaAges 18 years+ - NCT04582903Recruiting
Send-in sample collection study for immune response to respiratory viruses
This study collects sent-in samples to better understand how your immune system responds during a COVID-19–like illness and after you recover. It may help researchers learn why some people get sick and others stay uninfected, and how immune protection works over time.
Rockville, MarylandAges 1 day–99 years - NCT06514547RecruitingPhase 4
Vaccine response and aging in people with HIV
This study is for people living with HIV who are 18 or older and on HIV medication. Researchers want to learn how the immune system and vaccine response change as people age, and will give a pneumococcal (pneumonia) vaccine to study that.
Minneapolis, MinnesotaAges 18 years+
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Common questions
- Are there clinical trials for immunization; infection?
- Yes. Clin2 currently lists 92 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.