Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 3,963 recruiting studies in this area right now.
By phase
- Not applicable2,541
- Phase 2359
- Phase 4302
- Phase 1287
- Phase 3283
- Phase 1/Phase 2132
- Phase 2/Phase 359
Top conditions
Leading sponsors
- National Institute of Allergy and Infectious Diseases (NIAID)89
- Assistance Publique - Hôpitaux de Paris69
- University of California, San Francisco39
- Johns Hopkins University30
- National Cancer Institute (NCI)28
- Hospices Civils de Lyon27
- Columbia University24
- University of Washington23
- University of Alabama at Birmingham22
- University of Oxford22
Where studies are running
- California234
- Maryland142
- Alabama93
- New York73
- Florida71
- Texas63
- Massachusetts55
- Arizona48
- Pennsylvania43
- Illinois41
Recruiting studies3,963 total
- NCT00001205Recruiting
Understanding neurocysticercosis outcomes in treated patients
This study follows patients who have been treated for neurocysticercosis—a brain infection caused by a parasite—to learn how they recover over time and what long-term effects they experience. By joining, you'll help doctors better understand this condition and improve care for future patients.
Bethesda, MarylandAges 3–99 - NCT00006150Recruiting
Understanding Hyper-IgE Syndrome: Natural History and Genetics
This study follows people with or suspected Hyper-IgE syndrome (a rare immune disorder causing repeated infections and skin problems) to understand how the condition develops, how best to manage it, and which genes are involved. Researchers also welcome healthy relatives of patients to help identify genetic patterns.
Bethesda, MarylandAges 1 month–120 years - NCT00344188Recruiting
Study of Leishmania infections
This trial studies people with Leishmania infections (a parasitic disease often from sand fly bites). Researchers aim to better understand and treat the infection, and you may benefit from expert care.
Bethesda, MarylandAges 3–100 - NCT00767312Enrolling by invitation
Study how HIV multiplies during HIV drug treatment
This study looks at how HIV continues to multiply (or stays suppressed) while you are taking antiretroviral therapy, using blood samples. It may help researchers better understand what HIV is doing during treatment and why some people experience changes like viral rebound.
Bethesda, MarylandAges 18–99 - NCT00867269Recruiting
Study of causes and progression of low CD4 blood cells
This study looks for what causes and how idiopathic low CD4 cells happen over time, using blood and tissue samples. It may help doctors learn why this occurs and how to better track people with it.
Bethesda, MarylandAges 18 years+ - NCT00789009Recruiting
Monitoring people with known or suspected HIV infection
This study tests how well researchers can track HIV-related health and immune changes over time by collecting blood and other samples. It may help you and your care team by creating detailed monitoring, even if your HIV diagnosis is new or still being evaluated.
Bethesda, MarylandAges 18 years+ - NCT00001230Recruiting
Understanding How Your Body Responds to Filarial Infection
This study looks at how the body's immune system reacts to filarial infections—parasitic worms that affect millions worldwide. Researchers will observe your infection and response to treatment to better understand the disease and improve future care.
Bethesda, MarylandAges 3–100 - NCT00001778Recruiting
Understanding HTLV Infection and HAM/TSP Disease
This research study evaluates people with HTLV infection, a virus that can cause a nerve disorder called HAM/TSP. Researchers want to better understand who gets this condition and why, which may help develop future treatments.
Bethesda, MarylandAges 18–120 - NCT00001351Enrolling by invitation
Long-term study of immune system disorders
This study evaluates and follows patients with inflammatory conditions related to immune system problems. It aims to understand these disorders better and may offer opportunities to participate in other research.
Bethesda, MarylandAges 2 years+ - NCT00557726Recruiting
Evaluation and care for inflammatory or infectious illnesses
This trial helps doctors evaluate possible infection or inflammation and decide on the best management plan. You may be able to receive specialized care at the NIH if the study team thinks your situation fits.
Bethesda, MarylandAges 3–100 - NCT00005917Recruiting
Understanding Chediak-Higashi Syndrome: A Research Study
This study helps researchers understand Chediak-Higashi syndrome, a rare genetic condition that affects how the body fights infections and controls bleeding. Participation involves medical evaluation and may help guide future treatments.
Bethesda, MarylandAges 1 month–70 years - NCT00029445Recruiting
Blood and Cell Collection Study for HIV Research
This research study collects blood cells from adults with HIV and their family members to understand why some people's immune systems control HIV better than others. Researchers will use your cells to study HIV immunity and develop better treatments.
Bethesda, MarylandAges 18–100 - NCT01222741Recruiting
Study of people with higher risk of fungal infections
This study looks at immune system differences that can make some people get unusual or frequent fungal (fungus) infections. It may help researchers better understand these conditions, and you may be asked to store blood for future research.
Bethesda, MarylandAges 18–85 - NCT00404560Recruiting
Blood tests to study infection risk and immune problems
This study looks at how the immune system works in people who have—or might have—an increased risk of infections. It also enrolls their healthy blood relatives so researchers can compare immune features; results may help doctors understand who is at higher risk and why.
Bethesda, MarylandAges 1 month–100 years - NCT00018044Recruiting
Study of mycobacterial infections and immune system
This study looks at how the body fights mycobacterial infections (a type of bacteria) and aims to find immune problems that make some people more prone to these infections. It may help us understand why some people get sick and could lead to better treatments.
Bethesda, MarylandAges Up to 100 years - NCT01200953Recruiting
Study care after contact with serious infectious germs
This study helps doctors manage people who may have been exposed to, infected with, or are recovering from dangerous infectious germs (including emerging outbreaks). It may help by setting safe evaluation and care steps after these high-risk exposures.
Bethesda, MarylandAges 3–99 - NCT01212003Recruiting
Study of how tuberculosis develops over time
This study follows people with suspected or confirmed tuberculosis (TB), whether they have inactive “latent” TB or active TB. It helps researchers better understand TB’s natural course and may improve future testing and care by allowing collection and storage of samples.
Bethesda, MarylandAges 2–100 - NCT00001406Recruiting
Understanding eosinophil behavior in rare blood and tissue conditions
This research study examines how eosinophils (a type of white blood cell) behave and function when they become abnormally high in the blood or tissues. Researchers want to understand these conditions better to potentially improve treatment options.
Bethesda, MarylandAges 1–100 - NCT00077909Recruiting
Study of Lung Proteins in Patients With Pneumonia
This research study examines proteins in fluid collected from your lungs during a breathing tube procedure (bronchoscopy) to better understand pneumonia. By studying these proteins, researchers hope to improve how doctors diagnose and treat lung infections.
Bethesda, MarylandAges 3–99 - NCT00128973Recruiting
Study immune system problems in people with unusual infections
This study looks at how the immune system works in people who have abnormal immune function, often shown by unusual or repeated infections or long-lasting inflammation. It may involve tests using blood samples and storage of blood for future research.
Bethesda, MarylandAges Any age - NCT00001355Recruiting
Understanding immune system cell defects and family patterns
This research study investigates problems with immune system cells called phagocytes that help fight infections. Researchers will study patients with suspected immune defects and their blood relatives to better understand these conditions and develop better care.
Bethesda, MarylandAges 1 month–100 years - NCT00001316Recruiting
Study viral levels in blood and lymph node tissue with HIV
This study measures how much HIV is in your blood and lymph node tissue. If you qualify, you would also allow blood and other tests (including genetic and hepatitis screening), which may help researchers better understand how HIV affects the body.
Bethesda, MarylandAges 18–100 - NCT00114647Recruiting
Blood draw to collect plasma or white blood cells for lab tests
This trial uses a special blood-removal procedure called apheresis to collect either plasma or white blood cells for laboratory research. It may help scientists understand infection or immune-related processes by providing specific blood components for study.
Bethesda, MarylandAges 18–100 - NCT00001971Recruiting
Evaluation of patients with liver disease
This research study evaluates people with liver disease or at risk for liver disease, and compares them with healthy volunteers. The goal is to better understand liver disease and improve how doctors diagnose and treat it.
Bethesda, MarylandAges 2–100
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 3,963 recruiting infectious disease studies from the U.S. registry right now, out of 6,646 we cover in this area in total.
- What does “Infections” cover here?
- Bacterial, viral, and other infections — from common illnesses to emerging threats. We group each study into infections based on the conditions it studies, so you can scan the whole therapeutic area at once and drill into a specific condition.
- How do I find a infections trial near me?
- Use the search to filter infections studies by location and eligibility. Every Clin2 trial page explains the criteria in plain English and offers a short, optional pre-screen for a fit read — the study team makes the final decision.
Other specialties
- Cancer
- Brain & nervous system
- Heart & circulation
- Hormones & metabolism
- Mental health
- Digestive system
- Lungs & breathing
- Immune system & allergy
- Women’s health & pregnancy
- Skin
- Blood & lymphatic
- Kidney & urinary
- Genetic & congenital
- Bones, joints & muscles
- Pain
- Injuries & trauma
- Mouth & dental
- Eyes & vision
- Ear, nose & throat
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov; specialty groupings are derived from each study’s conditions. Talk with your doctor about whether a specific trial is right for you.