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
- NCT04645511Recruiting
Balloon treatment for long-term or repeat maxillary sinusitis
This study tests whether balloon sinuplasty works better or more efficiently for people with long-lasting or repeatedly returning inflammation in the maxillary sinuses (side sinuses near your cheeks). It focuses on people who did not improve with the usual nose spray (topical steroid) or who meet specific “recurrent” episode patterns.
TampereAges 18–69 - NCT03848962Recruiting
Share leftover or collected samples for research
This study helps collect and share human samples (like blood or other specimens) so researchers can do new studies. It’s mainly about providing samples for research use, not testing a treatment on you.
Huntsville, AlabamaAges 1 month–89 years - NCT05266092Recruiting
Study kidney disease immune system activity in dialysis patients
This study looks at how the body’s defense systems (immune system and related signals) behave in people with chronic kidney disease. It may help doctors understand what is driving inflammation and related complications in dialysis patients.
OdenseAges 18 years+ - NCT05661786Recruiting
Study outcomes for hepatitis B with “indeterminate” disease phase
This trial studies what happens to people with hepatitis B who have hepatitis B surface antigen for more than 6 months, are “HBeAg-negative,” and have certain blood and liver-scarring levels despite normal or near-normal liver inflammation. It may help doctors understand the best care for this specific group before clear treatment phases.
Changzhou, JiangsuAges 18 years+ - NCT05663008Recruiting
Testing nerve-to-muscle signal changes to diagnose movement diseases
This study measures how nerves communicate with muscles, using recordings and gels. It aims to spot early, personalized signs of conditions like ALS and related diseases, and to improve diagnosis.
Dublin, LeinsterAges 18 years+ - NCT04291768RecruitingPhase 4
Shorter 5-day antibiotics for certain gram-negative bloodstream infections
This trial tests whether people with a specific type of bloodstream infection caused by gram-negative bacteria can safely take antibiotics for only 5 days instead of longer. It may help by reducing antibiotic exposure if your infection source is controlled quickly.
AalborgAges 18 years+ - 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+ - NCT05728996Recruiting
Study of early HIV to guide future care
This study follows people with a very recent HIV infection and collects blood and other samples to learn more about the infection soon after it starts. It may help researchers better understand early HIV and improve future treatments.
Amsterdam, North HollandAges 18 years+ - NCT05713149Recruiting
Treating pressure sores with surgery and anti-bacterial medicines
This study looks at whether combining a surgical skin flap with anti-bacterial treatment can improve pressure sores that are complicated by bone infection (osteomyelitis). It targets adults who have nerve/movement problems that put them at high risk for these sores.
GarchesAges 18 years+ - NCT05554068RecruitingPhase 2
Testing the shingles vaccine response after bone marrow transplant
This Phase 2 study looks at how well the shingles vaccine works in people who had an allogeneic (donor) stem cell transplant. It aims to measure the body’s immune response to the vaccine and check that it’s safe in this recovery period.
Maywood, IllinoisAges Any age - NCT05742490Recruiting
Track infections in newborns to improve care
This study collects information about newborns in participating hospital units who have an infection confirmed by a lab test. The goal is to better understand infection patterns so care for newborns can improve.
LondonAges 1 minute–1 year - NCT05746715Recruiting
Study of people at risk for inherited CJD before symptoms
This study follows people who have a close family member with inherited Creutzfeldt-Jakob disease (CJD) to understand how the disease develops before any symptoms. It may involve genetic testing and safety-required procedures like brain scans and a spinal fluid test to learn about early changes.
Tel AvivAges 50 years+ - NCT04713670RecruitingPhase 4
Tested medicines to cure new H. pylori infection
This trial compares different stomach-medicine combinations to eliminate a new (first-time) H. pylori infection. It may help find the most effective treatment approach for people who have never tried eradication therapy before.
TaipeiAges 20 years+ - NCT05648019RecruitingPhase 2
CD19 CAR T-cell therapy for tough B-cell blood cancers
This Phase 2 study tests a one-time CAR T-cell treatment aimed at CD19, a target found on many B-cell leukemias and lymphomas. It’s for people whose disease has come back or hasn’t responded to prior treatments, or who can’t have a stem cell transplant.
SingaporeAges birth–70 years - NCT05766826Recruiting
Coupons to help pregnant women get safer water
This study gives pregnant women coupons to support safer water access. It aims to see whether this kind of help improves water safety during pregnancy.
KisumuAges Any age - NCT05766449Recruiting
Study of liver inflammation and scarring in hepatitis B or fatty liver
This study looks at what factors predict liver inflammation, scarring (fibrosis), and health outcomes in people with long-term hepatitis B or fatty liver disease. The goal is to better understand who is more likely to worsen over time.
NanjingAges 18 years+ - NCT05770765Recruiting
Biobank for infections and tropical diseases
This study sets up a library (biobank) of biological samples and related health data from people with infectious or tropical diseases. Your samples and information help researchers study these illnesses and develop better tests or treatments.
Negrar, VeronaAges Any age - NCT05774093Recruiting
Study how COVID immunity affects reinfection risk
This study looks at how well COVID-19 protection (immune barrier) holds up over time and how likely people are to get reinfected. It may help researchers understand who is more at risk after prior infection and why.
Guangzhou, GuangdongAges Any age - NCT02454569Recruiting
Study for people living with HIV willing to join
This study follows people who have tested positive for HIV. It aims to better understand HIV over time, but you can only participate if you agree to join the study.
Battalapalli, Andhra PradeshAges Any age - NCT03893188Recruiting
SwissPrEPared program study for HIV-negative teens and adults
This study looks at people who join the SwissPrEPared program and who are HIV-negative. It tests how well the program’s steps can be followed and how participants do while enrolled.
Aarau, Canton of AargauAges 16–120 - NCT04650607Recruiting
Phage therapy safety check in serious infection patients
This study checks the safety of using phage therapy (viruses that target certain bacteria) in adults being treated for serious infections. If you meet the safety rules, your care team may enroll you to help confirm phage treatment is safe.
LyonAges 18 years+ - NCT05153824Recruiting
Study of normal E. coli in the gut microbiome
This study looks at how a common gut bacterium (E. coli) naturally changes over time in healthy adults. It may help scientists understand how healthy gut bacteria behave and evolve.
ParisAges 18–65 - NCT05247112Recruiting
Tracking antibiotic resistance in H. pylori infections in Korea
This study looks at how resistant H. pylori (a stomach germ) is to different antibiotics in Korea. It uses stomach endoscopy samples to test which antibiotics may or may not work, helping guide future treatment choices.
Seongnam-si, Gyeonggi-doAges Any age - NCT05848570Recruiting
Digital program for reducing HIV risk in SGM youth
This trial tests a digital health program (available with limited in-person contact) to help SGM young people reduce their risk of HIV. You may be a good fit if you’re in the right age range and have had certain types of sex in the last 6 months.
Chicago, IllinoisAges 13–34
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.