Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 4,175 recruiting studies in this area right now.
By phase
- Not applicable2,709
- Phase 2361
- Phase 4321
- Phase 1292
- Phase 3286
- Phase 1/Phase 2141
- Phase 2/Phase 365
Top conditions
Leading sponsors
- National Institute of Allergy and Infectious Diseases (NIAID)89
- Assistance Publique - Hôpitaux de Paris80
- University of California, San Francisco44
- Johns Hopkins University32
- Hospices Civils de Lyon30
- National Cancer Institute (NCI)28
- University of Washington27
- University Hospital, Strasbourg, France26
- Columbia University23
- University of Alabama at Birmingham23
Where studies are running
- California237
- Maryland147
- Alabama89
- New York77
- Florida74
- Texas61
- Massachusetts56
- Arizona46
- Pennsylvania45
- Illinois42
Recruiting studies4,175 total
- NCT05764538RecruitingPhase 2
Drug trial for brain fog after COVID-19
This Phase 2 trial tests DAOIB to improve “brain fog” and thinking problems that happen after COVID-19. You may be screened if your symptoms started after a COVID infection and have lasted for months, and if your health tests are normal.
Kaohsiung CityAges 18–100 - NCT05765162Recruiting
Research study on safer, more tailored anesthesia
This study looks at safer anesthesia—meaning medicines used during procedures—using a more personalized approach. It may help make anesthesia safer for adults having medical procedures.
Nykøbing FalsterAges 18–100 - 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+ - 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 - NCT05767671Recruiting
Breathing tube patients in ICU tested for lung inflammation treatment
This trial studies whether changing immune cells in the lungs (using a procedure called MiniBAL) can improve outcomes in adults who are critically ill and on a breathing tube. It may help doctors better manage acute lung injury by targeting inflammation early in the ICU stay.
Denver, ColoradoAges 18–99 - NCT05769816RecruitingPhase 2
Combination treatment aimed to cure chronic hepatitis B
This Phase 2 study tests a combination therapy to help people with chronic hepatitis B reach a “functional cure,” meaning the hepatitis B surface antigen (HBsAg) is lost for a sustained period. If you qualify, you’ll be closely monitored to see how well the treatment works and whether it’s safe for you.
Chongqing, Chongqing MunicipalityAges 18–70 - NCT05770622RecruitingPhase 4
Vancocin dosing check in young infants with infections
This trial studies a better way to monitor and adjust vancomycin (an antibiotic) dosing in very young infants. It may help your baby get the right dose while reducing the risk of under- or over-dosing.
Melbourne, VictoriaAges birth–3 months - 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 - NCT05771402RecruitingPhase 2
Combination treatment aimed at clearing hepatitis B long-term
This Phase 2 study tests a combination treatment to help people with chronic hepatitis B stop having detectable hepatitis B surface antigen (called HBsAg). If successful, it may move you closer to a “functional cure,” meaning lower ongoing virus activity over time.
Chongqing, Chongqing MunicipalityAges 18–70 - NCT05774548Recruiting
Study of PrEP use and its cost in HIV prevention
This study looks at how taking PrEP (medicine to prevent HIV) affects HIV prevention and how much it costs in real life. You may be able to join if you are HIV-negative and are interested in starting, currently using, or have used PrEP before.
Bangkok, BangkapiAges 18 years+ - 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 - NCT05774561Recruiting
Using blood tests to monitor HPV-related cancer treatment
This study checks whether “liquid biopsies” (blood tests that look for cancer-related signals) can help monitor how HPV-related cancers respond to treatment. It may help doctors spot changes earlier during care.
OlomoucAges 18–99 - NCT05776251Recruiting
Noninvasive nerve stimulation for ongoing Lyme symptoms
This trial tests whether taVNS (a noninvasive nerve stimulation done through the skin near the ear) can reduce long-lasting symptoms after Lyme disease. It targets people whose symptoms have stayed for months after standard antibiotic treatment.
New York, New YorkAges 18–65 - NCT05777447Recruiting
Study for infected aorta/iliac aneurysm after in-place repair
This study looks at treatment outcomes for people whose aorta or iliac artery aneurysm became infected (a “mycotic” aneurysm) and who were treated with an in-place repair. It may help doctors understand the best way to manage this rare condition after surgery.
Roma, RMAges 18 years+ - NCT05778006Recruiting
Registry for people with ME/CFS
This study is a registry, meaning it collects information from people who have ME/CFS. It helps researchers better understand ME/CFS and may guide future studies that could improve care.
Munich, BavariaAges birth+ - NCT05780099Recruiting
Study of patients treated in internal medicine clinics
This observational study follows people receiving care in Internal Medicine at San Raffaele Hospital to better understand what kinds of conditions they have. It does not test a new treatment, but your information may help improve future care.
MilanAges 18 years+ - NCT05782010Recruiting
Testing a hemorrhoid device for grade II or III hemorrhoids
This study tests how safe and well a hemorrhoid treatment device (PexyEazy®) works for adults with moderate-to-severe hemorrhoids (grade II–III). You may be a candidate if you fit the hemorrhoid grade and medical safety requirements and can follow the study plan.
FrölundaAges 18–84 - NCT05783375Recruiting
Rheumatic heart prevention program for Ugandan communities
This study helps deliver prevention care for rheumatic heart disease in specific districts of northern Uganda. If you live there (or provide care in the selected clinics), the program may offer extra support to help stop heart damage before it starts.
Kampala, UgandaAges 5 years+ - NCT05784038Recruiting
Study of monkeypox infection in Brazil
This is an observational study that follows people with confirmed monkeypox (mpox) to better understand the illness over time. It may help doctors learn what to expect and improve care, but it does not test a new treatment.
Belém, ParáAges 18 years+ - NCT05784311RecruitingPhase 4
Longer vs shorter antibiotic prevention after pancreatoduodenectomy
This trial compares a standard length of preventive antibiotics versus a longer course after Whipple surgery to see if it lowers infection risk without causing extra side effects. It targets people considered higher risk for contamination of bile during surgery.
Leiden, South HollandAges 18–90 - NCT05784740Recruiting
Exercise program to improve recovery after sepsis
This study tests whether a structured, supervised exercise program helps people recover better after sepsis. It may improve physical fitness and day-to-day outcomes over about 12 weeks.
Vancouver, British ColumbiaAges 19 years+ - NCT05786547RecruitingPhase 3
Varenicline plus support to help quit tobacco in HIV care
This Phase 3 trial tests a quit-smoking program using varenicline (a medicine) plus additional support, for people with HIV who currently use tobacco. It may help you stop smoking or using tobacco and stay quit with safer, guided care.
Aurora, ColoradoAges 18 years+ - NCT05787379Recruiting
Care program for Veterans with long-lasting COVID symptoms
This trial tests a care approach for Veterans who have long-COVID—aiming to improve symptoms and follow-up care through participating VA clinicians. You may be included if you are a Veteran with long-COVID and can be seen by a participating clinician soon, unless you had severe COVID requiring ICU care.
East Orange, New JerseyAges Any age - NCT05788094RecruitingPhase 4
Compare two medicines for P. vivax malaria
This study tests how well a malaria treatment plan works for people with P. vivax malaria who don’t have another malaria type at the same time. It aims to see whether adding or using different medicines (ACT vs chloroquine with tafenoquine) helps clear infection and prevent return of disease.
Mae Sot, Changwat TakAges 18 years+
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 4,175 recruiting infectious disease studies from the U.S. registry right now, out of 7,076 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.