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
- NCT06058819Recruiting
New blood test to guide antibiotic use in newborns
This study is testing a new blood test to see if it can help doctors decide when to use antibiotics for newborns who may have a late-onset infection. The goal is to reduce unnecessary antibiotic use.
BronAges 1 week–2 weeks - NCT06080698Recruiting
Oral antibiotics for bloodstream infection trial
This trial tests whether switching from IV to oral antibiotics is just as effective for treating Gram-negative bloodstream infections. If you qualify, you may receive either continued IV antibiotics or switch to pills, with follow-up on your recovery and quality of life.
San Francisco, CaliforniaAges 18 years+ - NCT06057519RecruitingPhase 3
Optimized rifampicin dosing for TB
This trial tests whether higher or standard doses of the antibiotic rifampicin work better for treating pulmonary tuberculosis (a lung infection). You may benefit if you are starting TB treatment and have not had a bad reaction to rifampicin before.
TurinAges 18 years+ - NCT06056544Enrolling by invitation
HIV prevention support for Black men who have sex with men
This study tests a personalized care coordination program to help Black men who have sex with men stay on HIV prevention. It focuses on men who are new to or have stopped PrEP and want to reduce their HIV risk.
Washington D.C., District of ColumbiaAges 18 years+ - NCT06070688Recruiting
A test to tell if your breathing infection is bacterial or viral
This study tests a new way to quickly figure out if a respiratory infection is caused by bacteria or a virus. Knowing this could help doctors choose the right treatment faster and avoid unnecessary antibiotics.
Houston, TexasAges 18 years+ - NCT06069141Recruiting
Comparing syphilis treatments for people with HIV
This study compares the standard treatment for early syphilis with a combination that includes an extra antibiotic, to see which is more effective. It is for people living with HIV who have early syphilis.
Hsinchu, TaiwanAges 18 years+ - NCT06062342Recruiting
HIV prevention study in Miami Black communities
This study aims to help prevent HIV in Black communities in Miami by using local gathering places like barbershops and salons. You may join if you visit these spots during study events and haven't already taken part before.
Miami, FloridaAges 18 years+ - NCT06058520RecruitingEarly Phase 1
Capsule microbiome transplant for hidradenitis suppurativa
This trial tests whether taking capsules containing healthy gut bacteria (fecal microbiota transplant) can help treat hidradenitis suppurativa. You may qualify if you have HS and haven't taken antibiotics in the last 30 days.
Minneapolis, MinnesotaAges 18 years+ - NCT02055105Recruiting
Study tests a blood test pattern in children with sepsis
This trial studies how a specific pattern in blood (called “molecular fingerprinting”) changes in children with suspected or developing sepsis. The goal is to help doctors better recognize sepsis early and understand how it progresses, which may improve care.
Phoenix, ArizonaAges 1–18 - NCT05931497Recruiting
Sauna heat treatment for long COVID fatigue
This trial tests whether regular sauna sessions using infrared heat can reduce fatigue from long COVID. You may be eligible if you have ongoing fatigue after a confirmed or strongly suspected COVID infection and can safely spend time lying in a sauna.
Boston, MassachusettsAges 18–65 - NCT04158882Recruiting
Study records about HIV care in Zambia
This trial uses health records to learn how people in Zambia access HIV care and treatments. It may help improve future HIV support and treatment planning.
LusakaAges 15 years+ - NCT03748069Recruiting
Study of complications from flu and lung Aspergillus infection
This study looks closely at how influenza (the flu) and a specific kind of lung fungus called Aspergillus affect people who are sick in the ICU with breathing problems. It may help doctors better understand the cause and improve treatment for severe lung infections.
LeuvenAges 18 years+ - NCT04149782Recruiting
HIV care records review in South Africa
This study gathers and reviews existing records from people receiving care for HIV in South Africa. It aims to better understand how HIV treatment is working in real-world settings and for different types of risk groups.
JohannesburgAges 15 years+ - NCT04158895Recruiting
HIV care records study to improve HIV treatment in Malawi
This study gathers information from people receiving HIV care in Malawi to better understand and improve HIV treatment. You may be included if you are an adult or older and you are currently accessing HIV care during the study’s time period.
LilongweAges 15 years+ - NCT04538053RecruitingPhase 4
Simpler antibiotics for uncomplicated bone and joint infections in children
This trial looks at whether a simpler antibiotic plan can work for children with uncomplicated bone or joint infections that start in the community. It may help reduce the need for complicated treatment while still keeping the infection under control.
Kingswood, New South WalesAges 1–18 - NCT06047379RecruitingPhase 1/Phase 2
Testing NEO212 for brain tumors and metastases
This trial tests a new drug called NEO212 for people with certain brain tumors (like astrocytoma or glioblastoma) or cancer that has spread to the brain from other parts of the body. The goal is to see if it is safe and if it can help shrink or control the tumors.
Beverly Hills, CaliforniaAges 18 years+ - NCT06037564Enrolling by invitationPhase 4
Switching HIV treatment to a simpler daily pill
This study tests whether switching your current HIV medication to a daily pill with doravirine, dolutegravir, and lamivudine is safe and effective. It is for people whose HIV is well-controlled but who have had to change treatment before because it stopped working.
Aarau, Canton of AargauAges 18 years+ - NCT06045338Recruiting
Mind-body program for long COVID symptoms
This trial tests a mind-body intervention to help people with ongoing long COVID symptoms like pain, fatigue, or brain fog. If you've had COVID-19 and have had symptoms at least 3 days a week for 3 months, this study might help.
Boston, MassachusettsAges 18–65 - NCT06052696RecruitingPhase 4
HPV vaccine after treatment for vulvar high-grade lesions
This trial tests whether getting the HPV vaccine after treatment for vulvar high-grade lesions can help prevent the lesions from coming back. It is for women who have not been vaccinated before and are about to have treatment for this condition.
RotterdamAges 18–100 - NCT06047093Recruiting
Study of Hepatitis B Virus in the Liver
This study collects a small sample of liver cells to understand how hepatitis B virus behaves in the liver and how the immune system responds. This could help improve future treatments for chronic hepatitis B.
LyonAges 18 years+ - NCT06039176Recruiting
Learning from the HeartMate 3 device
This study looks at information from the HeartMate 3 LVAD device to learn more about how it works and what it can tell us about the future. It may help people with advanced heart failure who need this specific device.
San Francisco, CaliforniaAges 18–100 - NCT06052436RecruitingPhase 1/Phase 2
Treg cell therapy for COVID-19 and acute respiratory distress
This trial tests a new cell therapy using Treg cells from thymic tissue to calm an overactive immune response in severe COVID-19 and ARDS. It aims to improve breathing and reduce inflammation.
Madrid, MadridAges 18–65 - NCT06055712Enrolling by invitationPhase 4
Antibiotics for children with open fractures
This trial tests whether giving antibiotics can prevent infections in children with mild open fractures (grade 1 or 2) that don't need surgery. It aims to find a safer, simpler treatment plan.
St Louis, MissouriAges birth–17 years - NCT06045416Recruiting
Borrelia (Lyme) blood test study
This trial is testing a new blood test to help diagnose Lyme disease (borrelia infection) in children. If you are at the emergency room with symptoms that might be Lyme disease and you have a healthy immune system, you might be able to join.
ZurichAges 1 month–17 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.