Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 3,968 recruiting studies in this area right now.
By phase
- Not applicable2,549
- Phase 2357
- Phase 4301
- Phase 1287
- Phase 3282
- Phase 1/Phase 2132
- Phase 2/Phase 360
Top conditions
Leading sponsors
- National Institute of Allergy and Infectious Diseases (NIAID)88
- 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 Alabama at Birmingham23
- University of Oxford23
- University of Washington23
Where studies are running
- California233
- Maryland142
- Alabama93
- New York73
- Florida72
- Texas62
- Massachusetts57
- Arizona48
- Pennsylvania43
- Illinois41
Recruiting studies3,968 total
- NCT05709028RecruitingPhase 3
Fosfomycin for drug-resistant bladder infections in children
This trial tests whether fosfomycin works better than the usual treatment for children with urine infections caused by antibiotic-resistant germs. It may help by using an antibiotic choice that can still work when common oral options may fail.
Sydney, New South WalesAges 6 months–17 years - NCT06446232Recruiting
Flu vaccine effectiveness in young children
This trial studies how well the flu vaccine works in young children in Taiwan. To join, your child must have a positive flu test and a known vaccination record.
TaipeiAges 6 months–18 years - NCT04422366RecruitingPhase 3
9-valent HPV vaccine study for healthy Chinese women
This trial tests a 9-type HPV vaccine to see how well it works, how it helps the body build protection, and whether it’s safe. It’s for healthy Chinese women who have not had HPV vaccination before and meet specific health and timing requirements.
Liuzhou, GuangxiAges 20–45 - NCT06451172RecruitingEarly Phase 1
New antibiotic eye drops for drug-resistant eye infections
This trial tests a new type of antibiotic eye drop for people with serious eye infections that don't respond to standard antibiotics. It aims to see if these drops can safely treat the infection and help improve vision.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT05814250Recruiting
Ultrasound in children after a first bladder infection
This trial studies whether doing an ultrasound scan after a child’s first febrile urinary tract infection (UTI) is useful. The goal is to see which children might need further attention based on the scan.
FlorenceAges 2 months–3 years - NCT04615065Recruiting
Biobank study collecting emergency data for very sick patients
This study collects health and sometimes blood sample information from people arriving at the emergency department with high-risk or serious conditions. The goal is to build a large emergency “biobank” to help researchers better understand and improve urgent care.
GroningenAges 18 years+ - NCT07838064Recruiting
Study of infection markers in hip revision surgery
This study looks for tiny markers in your blood and tissue that can tell whether a hip replacement is failing because of infection or another reason. By taking extra samples during your planned revision surgery, researchers hope to improve how infections are diagnosed in the future.
PortsmouthAges 18 years+ - NCT07842042Recruiting
Toothpaste study for gum health
This study tests a toothpaste with stannous fluoride to see how it affects gum health by measuring certain markers in the fluid around the teeth. It may help reduce gum inflammation and improve oral hygiene.
BirminghamAges 18–70 - NCT07834853Recruiting
HIV prevention and care study for Latino men and transgender women
This study helps Latino men, transgender women, and nonbinary people in Washington, DC and the San Francisco Bay Area get HIV prevention or care services. It aims to connect you with health services and support, whether you are living with HIV or want to prevent it.
Berkeley, CaliforniaAges 18 years+ - NCT07838051Recruiting
Muscle relaxants for sore throat after breathing tube
This study tests whether giving muscle relaxants during surgery can reduce sore throat after using a special breathing tube called a video laryngeal mask airway. It may help people who are having longer surgeries and have a higher body mass index.
Samsun, SamsunAges 18–70 - NCT07841691Recruiting
Improving antibiotic use for chest infections in young children
This study looks at how to use antibiotics more effectively for young children with chest infections. It aims to improve treatment and reduce unnecessary antibiotics.
Johannesburg, GautengAges 2 months–2 years - NCT07838298RecruitingPhase 4
Flu vaccine response in older adults who get it yearly
This study checks how well the seasonal flu vaccine works in people 65 and older who have had flu shots regularly. It compares their immune response to that of younger adults to see if repeated vaccination still protects them.
SeoulAges 19 years+ - NCT07840547Recruiting
Remote check-ins for Creutzfeldt-Jakob disease
This study uses video calls to check on people with Creutzfeldt-Jakob disease (a rare brain disorder) and their care partners. It aims to understand how the disease progresses and improve support.
Cleveland, OhioAges 18 years+ - NCT07834346RecruitingPhase 3
Clarithromycin to prevent new infections in sepsis after pneumonia
This study tests whether an antibiotic called clarithromycin can help prevent additional infections in people who have sepsis from pneumonia. The goal is to see if it helps you recover faster and avoid complications.
Pátrai, AchaeaAges 18 years+ - NCT07841535Recruiting
Faster germ detection in sepsis patients at an Indonesian hospital
This study compares different laboratory methods to find the exact germs causing your sepsis more quickly and accurately. Faster identification could mean better targeted treatment, potentially improving your recovery.
Jakarta, DKI JakartaAges 18 years+ - NCT07838714RecruitingPhase 1
Cord blood CAR-T cells for relapsed B-cell leukemia
This trial tests a new type of personalized cell therapy using your own immune cells (called CAR-T cells) that are designed to find and attack leukemia cells that have certain markers (CD19 and CD22). It is for people whose leukemia has returned or not responded to standard treatments.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT07841288Recruiting
Klebsiella pneumoniae infections in the respiratory ICU
This study looks at how common Klebsiella pneumoniae bacteria are in patients in the respiratory ICU. If you have this infection, the study may help doctors understand how many people get it and how it affects them.
SohagAges 18 years+ - NCT03862924Recruiting
Study tests standardized e-cigarette effects in people with HIV who smoke
This study looks at how a specific e-cigarette affects health in people who have HIV and smoke cigarettes regularly. You might be able to join if you meet smoking, HIV care, and safety requirements and are not planning to quit right away.
Providence, Rhode IslandAges 18 years+ - NCT06466707Recruiting
Collecting gut bacteria samples from healthy volunteers
This study collects stool or other samples from healthy people to learn more about the helpful bacteria in our gut. It may help researchers understand how these bacteria affect health.
Ghent, East FlandersAges 2–70 - NCT07830550Enrolling by invitation
Blood donation study for a syphilis test
This study is collecting blood samples from healthy adults to help develop a new test for syphilis, an infection that can be spread through sex. If you are willing to give a small blood sample, you may be able to join and help improve testing.
Salem, New HampshireAges 22 years+ - NCT07833852Enrolling by invitation
Long-term protection study for bivalent HPV vaccine
This study follows up with people who received the bivalent HPV vaccine to see how long their protection lasts and whether any breakthrough infections occur. It involves extra blood tests or follow-up visits over several years.
Mianyang, SichuanAges 12–34 - NCT07828184Recruiting
Filmogel topical treatment for toenail fungus
This trial tests a gel applied to the toenail that may treat mild to moderate fungus infections in one or two big toenails. It aims to see if the film-forming gel helps clear the infection.
DijonAges 18–85 - NCT07828860RecruitingPhase 1
Soquelitinib for adults with hidradenitis suppurativa
This trial tests a new oral medication, soquelitinib, in adults with moderate-to-severe hidradenitis suppurativa (HS), the skin condition that causes painful lumps and tunnels. Soquelitinib works by calming the immune system to reduce inflammation. The study aims to see if it is safe and effective.
West Lafayette, IndianaAges 18 years+ - NCT07833436RecruitingPhase 1
Testing a new Lassa fever vaccine
This trial tests a new vaccine against Lassa fever to see if it is safe and how well it triggers an immune response. It may help protect against this serious infection.
ParisAges 18–55
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 3,968 recruiting infectious disease studies from the U.S. registry right now, out of 6,521 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.