Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 3,966 recruiting studies in this area right now.
By phase
- Not applicable2,544
- Phase 2357
- Phase 4302
- Phase 1287
- Phase 3286
- Phase 1/Phase 2131
- 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
- Alabama92
- New York73
- Florida72
- Texas63
- Massachusetts55
- Arizona48
- Pennsylvania44
- Illinois41
Recruiting studies3,966 total
- 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 - NCT05264259Recruiting
Monoclonal antibodies for BK virus infection
This study tests a new treatment using lab-made antibodies to treat BK virus infection. It may help by controlling the virus in adults who already test BK positive.
StrasbourgAges 18 years+ - NCT05458440Recruiting
Study using immune cells from recovered COVID-19 donors
This study collects immune cells from people who recovered from COVID-19 and may use them to boost protection against SARS-CoV-2. It’s for hospitalized patients who already show a certain level of COVID-19 fighting immune response.
Vandœuvre-lès-Nancy, LorraineAges 18–70 - NCT05293366Recruiting
Long COVID study testing supportive care for multiple body systems
This study looks at people who have recovered from COVID-19 but still deal with long-term problems. It aims to better understand (and potentially help with) ongoing issues that can affect hormones, metabolism, mood, muscles, the heart, lungs, and skin.
NaplesAges 18 years+ - NCT05660733Recruiting
Study of infections of the aorta and large arteries
This trial studies how to care for infections that involve the aorta or other large blood vessels. If you have signs and test results that fit this diagnosis, you may be invited to help researchers better understand the condition and treatments.
Vandœuvre-lès-Nancy, LorraineAges 18 years+ - NCT06503588Recruiting
No ureteral stent change for urinary infections
This trial tests whether leaving a ureteral stent in place during a urinary tract infection is safe. It may help avoid unnecessary procedures for patients with an indwelling ureteral catheter who develop a urinary infection.
Nancy, LorraineAges Any age - NCT06694766Recruiting
Yellow Fever Vaccine Safety and Immune Response in Pregnancy
This study gathers safety and antibody information from women who received their first yellow fever vaccine either during pregnancy or outside of pregnancy. It aims to better understand how the vaccine affects pregnant women and their babies.
ParisAges 18 years+ - NCT06702449RecruitingPhase 1/Phase 2
UTI vaccine safety and immune response study for adults 18-64
This trial tests a new vaccine to prevent urinary tract infections (UTIs). It first checks safety and immune response in healthy adults, then in women with recent E. coli UTIs. The goal is to see if the vaccine can reduce future infections.
Lenexa, KansasAges 18–64 - NCT06693895RecruitingPhase 3
Chickenpox vaccine safety study for healthy toddlers
This study tests a new chickenpox vaccine for healthy children ages 12 to 15 months. It aims to see if the vaccine is safe and helps protect against chickenpox.
Phoenix, ArizonaAges 1 year–1.3 years - NCT05379556Recruiting
Study for long COVID sexual and reproductive symptoms
This study is looking at people who have recovered from COVID-19 but still have ongoing (long COVID) sexual, reproductive, or related symptoms. Researchers want to learn about these lingering problems and what may help, based on your answers and study procedures.
Naples, ItalyAges 18 years+ - NCT06694428Recruiting
Testing a software tool for CMV blood test results in pregnancy
This trial is testing a computer program that helps doctors interpret blood test results for CMV infection in pregnant women. If you are pregnant and have had a CMV blood test, this study may help doctors better understand your results.
LimogesAges 18 years+ - NCT06703060Recruiting
A trauma-informed approach to help Black women start PrEP
This study tests a program that helps Black women start PrEP (a daily pill to prevent HIV). It focuses on understanding and addressing past trauma to make it easier to take PrEP, and is designed for women who have not used PrEP before.
Baltimore, MarylandAges 18 years+ - NCT06704048Recruiting
Heart rehab after endocarditis: quality of life study
This study looks at how a heart rehabilitation program affects quality of life and personal experiences in people who have been treated for infective endocarditis (a serious heart infection). It aims to find out if this type of rehab helps patients feel better and recover more fully.
Halmstad, Halland CountyAges 18–90 - NCT06698211Enrolling by invitation
Posaconazole to prevent fungal infection in stem cell transplant patients with gut GVHD
This trial tests if giving the antifungal drug posaconazole as a tablet can prevent serious fungal infections in people who have had a stem cell transplant and develop gut graft-versus-host disease (GVHD), which is a complication where donor cells attack the digestive tract. It may help protect patients who need strong immune-suppressing treatment for GVHD.
TianjinAges 18–75 - NCT06693726RecruitingPhase 4
Early blood pressure medication in the ER
This trial tests a drug called angiotensin II for people in the emergency room who need a specific dose of norepinephrine (a medicine to raise blood pressure) and are also getting antibiotics. The goal is to see if giving angiotensin II early can help stabilize blood pressure.
Iowa City, IowaAges 18–99 - NCT06703034Recruiting
Studying the immune response in people who had severe or mild COVID-19
This study looks at how the body's immune system reacted to COVID-19 in people who had either severe or mild cases. The goal is to learn more about a specific part of the immune response (called IFN-I) to better understand the disease.
LyonAges 18 years+ - NCT06698510Recruiting
Arpraziquantel for schistosomiasis in young children
This study tests a new medicine called arpraziquantel to treat schistosomiasis (a disease from parasites in water) in young children aged 2 to 5. It aims to see if giving this treatment in communities where the disease is common is safe and helpful.
AbidjanAges 2 years–4.9 years - NCT06694181Recruiting
Safe and explainable AI for heart, sepsis, and breast cancer patients
This trial uses artificial intelligence (AI) to create prediction models for three groups: cardiology patients, sepsis patients, and breast cancer patients. It aims to make these models safe and easy to understand for doctors.
Philadelphia, PennsylvaniaAges 18 years+ - NCT06694740RecruitingPhase 2/Phase 3
Interferon gamma for immune recovery in the ICU
This trial tests if a drug called interferon gamma can help boost the immune system of patients in the ICU who are fighting serious infections. It is for adults who are on a breathing machine and have low immune function.
ParisAges 18 years+ - NCT05045612RecruitingPhase 4
Antibiotics for certain viral lung infections in hospitalized adults
This trial studies whether giving antibiotics affects recovery in adults hospitalized with moderately severe infections caused by specific viruses (influenza, parainfluenza, RSV, or hMPV). It may help show when antibiotics are helpful or unnecessary for viral airway illness.
BergenAges 18 years+ - NCT05667506RecruitingPhase 1/Phase 2
Check CNCT19 cell therapy for relapsed childhood ALL
This early-stage trial tests a personalized immune-cell treatment called CNCT19 in children and teens whose leukemia (ALL) has come back or not responded to prior therapy. It may help the immune system recognize and attack leukemia cells that carry CD19.
Hefei, AnhuiAges 3–18 - NCT05939167RecruitingPhase 1/Phase 2
Stem cell treatment study for people with late-stage HIV
This Phase 1/2 study tests whether mesenchymal stem cells can help people with HIV who have lower immune cell counts. You would join a treatment plan and follow study rules closely, while the researchers track safety and early signs of benefit.
BeijingAges 18–65 - NCT06236932Recruiting
Infection risk in obesity study
This study looks at how obesity and related conditions affect your body's ability to fight infections. It may help find ways to prevent illness in people with obesity.
NaplesAges 18–65 - NCT06689397Enrolling by invitation
Study of Epstein-Barr virus-related pink eye
This trial is studying a specific type of eye infection (pink eye) caused by the Epstein-Barr virus. It aims to better understand the condition and may help guide treatment for people with these symptoms.
LondonAges 16 years+
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 3,966 recruiting infectious disease studies from the U.S. registry right now, out of 6,624 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.