Condition

Immunization clinical trials and research

• 8Clinical trials
• 3Countries

Newest Immunization clinical trials

All recruiting trials (8)

• High-dose versus standard-dose flu vaccine for lung transplant recipients

  This study will test whether two yearly doses of the high‑dose flu vaccine produce stronger immune responses than two yearly standard‑dose flu vaccines in people who have received a lung transplant.

  Recruiting Phase 2 Vanderbilt University Medical Center · Nashville, Tennessee · NCT07192458

• Monocyte HLA-DR monitoring to detect immune weakness in severe intra-abdominal infections at risk for fungal invasion

  This will test whether measuring monocyte HLA-DR can reveal innate immune weakness in adult ICU patients with severe intra‑abdominal infections who are at risk for invasive Candida.

  Recruiting Central Hospital, Nancy, France · Vandœuvre-lès-Nancy · NCT07130799

• How COVID-19 affected fitness, sleep, diet, and blood pressure

  This project will see if past COVID-19 or long COVID is linked to changes in fitness, physical activity, blood pressure, sleep, and mental stress in adults aged 18 to 75.

  Recruiting Indiana University · Bloomington, Indiana · NCT07128095

• Exploring immune responses to yellow fever vaccination

  This study is testing whether yellow fever and typhoid vaccines can boost the immune system's ability to fight off other infections, and it involves collecting blood samples from participants after they get vaccinated.

  Recruiting Institut Pasteur · Paris · NCT06718127

• Comparing high and standard dose influenza vaccines in pediatric organ transplant recipients

  This study is testing whether a higher dose of the flu vaccine works better and is safe for kids aged 3 to 17 who have recently received an organ transplant.

  Recruiting at 11 sites Phase 2 National Institute of Allergy and Infectious Diseases (NIAID) · Stanford, California and 10 other locations · NCT05947071

• Assessing immune response to yellow fever vaccine in previously vaccinated adults

  This study is testing how well the yellow fever vaccine works in adults who have already been vaccinated before, to see if their previous shots help boost their immune response when they get vaccinated again.

  Recruiting Phase 1/2 Oregon Health and Science University · Portland, Oregon · NCT05859490

• Evaluating COVID-19 immunity and reinfection risk

  This study is testing how well COVID-19 vaccines and previous infections protect medical staff from getting reinfected with the virus over 48 weeks.

  Recruiting Sun Yat-sen University · Guangzhou, Guangdong · NCT05774093

• Influenza vaccination for adults over 75 years old

  This study tests how well the flu vaccine works for adults over 75, especially looking at how a common virus might affect their immune response.

  Recruiting Johns Hopkins University · Baltimore, Maryland · NCT02200276

Related topics

Quick answers

How many Immunization clinical trials are recruiting right now?

8, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 3 countries. The most sites are in United States (5 trials), France (2 trials), China (1 trial). Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 2: 2, Phase 1/2: 1. Trials with no phase listed are usually device, behavioural or observational studies.

How do I join one?

Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.

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