Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 4,178 recruiting studies in this area right now.
By phase
- Not applicable2,713
- Phase 2361
- Phase 4321
- Phase 1290
- Phase 3288
- Phase 1/Phase 2141
- Phase 2/Phase 364
Top conditions
Leading sponsors
- National Institute of Allergy and Infectious Diseases (NIAID)89
- Assistance Publique - Hôpitaux de Paris80
- University of California, San Francisco44
- Johns Hopkins University31
- Hospices Civils de Lyon30
- National Cancer Institute (NCI)28
- University of Washington27
- University Hospital, Strasbourg, France26
- Columbia University23
- University of Alabama at Birmingham23
Where studies are running
- California235
- Maryland146
- Alabama89
- New York76
- Florida74
- Texas61
- Massachusetts56
- Arizona47
- Pennsylvania45
- Illinois42
Recruiting studies4,178 total
- 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 - NCT00537966Recruiting
Study of new HIV infections in the Zurich area
This study enrolls people whose HIV infection is very recent or newly diagnosed (within the last few months). The researchers want to better understand early stages of HIV to improve how doctors identify and track new infections.
ZurichAges 18 years+ - NCT00001405Recruiting
Blood Cell Collection Study for Immune and Blood Disorders
This study collects blood cells and bone marrow from people with immune system or blood disorders, and from healthy volunteers. Researchers will study these cells and may convert them into special stem cells (iPS cells) to better understand diseases and develop treatments.
Bethesda, MarylandAges 18–70 - 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 - 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 - 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+ - NCT01905826Recruiting
Study of GATA2 deficiency causes and health outcomes
This natural history study looks at how GATA2 deficiency (a genetic condition) affects health over time. It may help doctors better understand complications and plan future care, and it includes genetic testing and stored samples.
Bethesda, MarylandAges 2–100 - 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 - 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 - 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 - NCT00901602Recruiting
Study of invasive pneumococcal infections in Lebanon
This study collects laboratory samples from patients with invasive pneumococcal infections to learn about the germ and where it spreads. It may help doctors and public health teams track infection patterns and improve prevention and treatment planning.
BeirutAges 1 day+ - NCT00001539Recruiting
Understanding Symptoms After Lyme Disease Treatment
This research study examines why some people continue to have symptoms months after being treated for Lyme disease. Researchers will compare patients with ongoing symptoms to people who recovered well, to better understand what causes lasting problems and how to help.
Bethesda, MarylandAges 13–99 - NCT01730131Recruiting
Study of PML in patients, at-risk people, and healthy volunteers
This study follows people with suspected or confirmed progressive multifocal leukoencephalopathy (PML), people at higher risk, and healthy volunteers. It uses visits, brain imaging (MRI), and stored biological samples to better understand how PML progresses and who is at risk.
Bethesda, MarylandAges 2–120 - NCT00411983Recruiting
Long-term follow-up for people in the HIV-NAT studies
This study checks in with people who have joined HIV-NAT research in the past or are joining it now, to learn how their HIV and treatment outcomes look over time. It may help improve future care and research for people living with HIV.
BangkokAges 18 years+ - NCT00039689Recruiting
Blood collection study for newly diagnosed HIV research
This research study collects blood cells from people recently diagnosed with HIV who haven't started HIV medicines yet. Researchers use these samples to understand how HIV affects the immune system and develop better treatments.
Bethesda, MarylandAges 18–120 - NCT02048332RecruitingPhase 1/Phase 2
Donor immune cells for preventing infections after stem cell transplant
This trial studies donor-made immune cells (T-cells) given after a stem cell transplant to help your body fight infections. It aims to test how safe the treatment is and whether it supports the immune system in the months after transplant.
Akron, OhioAges 4 weeks+ - 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 - 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 - 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 - NCT00307281Recruiting
Emphysema and COPD patient registry with sample storage
This study enrolls people who have emphysema/COPD into a research registry and collects health information and biological samples. It may help researchers understand the disease better and improve future treatments.
Pittsburgh, PennsylvaniaAges 21 years+ - NCT01137825Recruiting
Older patient cancer registry for a health check
This study is a registry that collects information from older adults who may be dealing with cancer. It includes a short health and function check to help doctors understand needs and guide care, even for people who turn out not to have cancer.
Boone, North CarolinaAges 65 years+ - NCT01068990Recruiting
Testing how to identify pneumonia germs in ICU patients
This study looks at how well doctors can detect and identify the cause of new pneumonia in people in the medical intensive care unit (ICU). It may help improve how pneumonia is diagnosed and treated in critically ill patients.
SeoulAges 16 years+ - NCT00032513Recruiting
Genetic study of chronic active Epstein-Barr virus disease
This research study looks for genetic factors that may explain why some people develop severe, long-lasting Epstein-Barr virus (EBV) infection. Researchers will study blood and tissue samples from patients with this rare condition, their healthy relatives, and unrelated volunteers to understand the disease better.
Bethesda, MarylandAges 1–120 - 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
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 4,178 recruiting infectious disease studies from the U.S. registry right now, out of 7,113 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.