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
- NCT05276557RecruitingPhase 3
Kids study of a breath test to check H. pylori
This Phase 3 study tests whether a urea breath test (a safe breath test) works well and is safe for children ages 3–17. It may help doctors find and manage an H. pylori infection without using repeated samples.
Doral, FloridaAges 3–17 - NCT05681689RecruitingPhase 3
Check how well a urea breath test works after H. pylori treatment
This Phase 3 study tests whether a urea breath test can confirm that H. pylori infection has been cleared after recent treatment. If the test works well, it may help doctors confirm cure without needing invasive procedures.
Doral, FloridaAges 18 years+ - NCT04218422Recruiting
Battlefield-style ear acupuncture for hidradenitis pain
This trial tests a type of ear acupuncture (“battlefield acupuncture”) to reduce pain from hidradenitis suppurativa, a long-term skin condition. You may be eligible if your hidradenitis pain is frequent and your treatments are stable.
Dearborn, MichiganAges 18 years+ - NCT05367089RecruitingPhase 3
Honey treatment for frequent vaginal yeast infections
This Phase 3 study tests a medical-grade honey product (L-Mesitran) to reduce symptoms from recurrent vaginal yeast infections. If you have frequent episodes, the honey treatment may help lower symptom flare-ups compared with usual care.
HeerlenAges 18 years+ - NCT05870969Recruiting
Digital monitoring to catch liver cancer risk early
This study tests a digital (computer/phone-based) system to help track people with higher risk of liver cancer so cancers can be found earlier. It may help by guiding regular check-ins and making early diagnosis more efficient.
Shanghai, Shanghai MunicipalityAges 18–75 - NCT05855889Recruiting
Study of care for babies with congenital CMV infection
This is an observational study that looks at how babies with congenital CMV infection are diagnosed and managed in real life. It may help doctors understand which care approaches are used and how they relate to outcomes over time.
LondonAges Up to 10 years - NCT05127252Recruiting
Study how gut bacteria may affect time to pregnancy
This study looks at whether differences in the gut (microbiome) are linked to how long it takes to get pregnant and pregnancy outcomes. It may help researchers understand who might benefit from future microbiome-focused approaches.
Stockholm, HuddingeAges 18–40 - NCT05883995Recruiting
Phage therapy clinic program in Lyon
This trial is an organized clinic to help patients request bacteriophage (phage) therapy. It mainly checks that you were referred to the Lyon hospital for a phage therapy request and that you agree to be part of the program.
LyonAges Any age - NCT05922306RecruitingEarly Phase 1
Testing continuous vs pulsed treatment for chronic hepatitis B
This early-phase study compares two ways of giving treatment for chronic hepatitis B: continuous antiviral therapy versus pulsed treatment. It may help find a schedule that works well and is tolerable for people with hepatitis B.
Hefei, AnhuiAges 18–60 - NCT05911503RecruitingEarly Phase 1
High-dose ganciclovir eye drops for CMV eye infection
This early-phase study tests high-concentration ganciclovir eye drops to treat cytomegalovirus (CMV) retinitis, a serious eye infection. It may help people who are hard to treat with regular (systemic) antiviral medicine or who face higher risks with an injection directly into the eye.
Tianjin, Tianjin MunicipalityAges 2–80 - NCT05937178Recruiting
Real-World Study to Optimize Hepatitis B Tablet Treatment
This study looks at how to best use existing hepatitis B “nucleotide-analog” tablets in everyday care. It may help tailor when to start, and whether to continue or adjust treatment, based on your test results.
Hefei, AnhuiAges 18–80 - NCT05955859Recruiting
Testing how to diagnose fungal sinus infections
This study looks at better ways to diagnose a fungal (mycotic) infection in the sinus/near-nose area. You may be considered if you have symptoms on only one side, such as blockage or drainage, and you can safely take part in the study tests.
Ostrava, Czech RepublicAges 18–80 - NCT05965128Recruiting
Testing a new 3-step diagnosis for fever and lung infections
This study tests a new, step-by-step way doctors identify what’s causing sudden fever and respiratory infections (like pneumonia or flu-like illness). It may help clinicians diagnose faster and choose the right next care.
Lanzhou, GansuAges 12–100 - NCT05224401RecruitingPhase 3
Oral antibiotic step-down for ESBL bladder infections
This Phase 3 trial tests whether switching from short-term IV antibiotics to an oral antibiotic combo is safe and effective for ESBL urine infections. It may help you avoid staying on IV antibiotics as long, if your bacteria are the right match.
HelsingborgAges 18–130 - NCT05988879Recruiting
Functional cure for hepatitis B in HIV/HBV co-infection
This trial tests whether people with both HIV and hepatitis B can achieve a functional cure for hepatitis B. It aims to see if current treatment can be stopped safely after the hepatitis B virus is no longer active.
Guangzhou, GuangdongAges 18–65 - NCT05991219Recruiting
Rheumatic heart disease screening and prevention study
This study is looking for people living in rural areas of Sindh, Pakistan, to help screen for and prevent rheumatic heart disease. It aims to find and treat the condition early.
Karachi, SindhAges 10–30 - NCT06000527Recruiting
A French study on juvenile recurrent respiratory papillomatosis
This study is creating a national group of patients with juvenile recurrent respiratory papillomatosis, a condition causing wart-like growths in the airway. It aims to learn more about the disease and improve care.
ParisAges Any age - NCT06012552RecruitingPhase 2
Tianeptine for COVID-19 brain fog
This study tests whether the medication tianeptine can improve brain fog and thinking problems that persist after COVID-19. It may help if you are 18 or older, have had COVID-19, and have noticed new memory or concentration issues.
WarsawAges 18 years+ - NCT06005246Recruiting
Munich ME/CFS Study for Young People
This study is tracking children, teens, and young adults (up to age 25) who developed ME/CFS after an infection. It aims to better understand the condition in younger people.
Munich, BavariaAges Up to 25 years - NCT03413683Recruiting
Studying frailty in older adults living with HIV
This study looks at frailty (feeling weak, having trouble with daily activities, or losing strength) in people age 50 and older who are living with HIV. It may help researchers understand frailty in HIV and how to better support older adults.
ShatinAges 50 years+ - NCT05860387Recruiting
Testing faster diagnosis of serious lung fungal infection
This study aims to detect invasive lung aspergillosis earlier by testing samples from your lungs and measuring specific lab markers. It may help doctors start the right antifungal treatment sooner when the infection is suspected.
Havířov, Moravian-Silesian RegionAges 18 years+ - NCT06023056Recruiting
Hepatitis B vaccine after newborn surgery
This trial tests whether giving the hepatitis B vaccine to full-term newborns who had multiple stomach or intestine surgeries is safe and works well. It aims to protect these babies from hepatitis B infection.
Chongqing, Chongqing MunicipalityAges Any age - NCT06050148RecruitingPhase 2/Phase 3
Fecal Transplant to Prevent Repeat Urinary Tract Infections
This trial tests whether a fecal microbiota transplant (a procedure that transfers healthy bacteria from a donor's stool into your gut) can help prevent repeat urinary tract infections in women who have frequent infections.
HelsinkiAges 18–90 - NCT06044077RecruitingPhase 3
Testing a new pneumonia vaccine in healthy people
This trial tests a new 23-valent pneumococcal vaccine to see if it safely protects healthy people against pneumonia and other infections caused by pneumococcal bacteria.
Chengdu, SichuanAges 2 years+
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.