Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 4,173 recruiting studies in this area right now.
By phase
- Not applicable2,709
- Phase 2360
- Phase 4322
- Phase 1292
- Phase 3284
- 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
- California235
- Maryland147
- Alabama89
- New York77
- Florida74
- Texas61
- Massachusetts56
- Arizona46
- Pennsylvania45
- Illinois42
Recruiting studies4,173 total
- NCT04381936RecruitingPhase 3
Testing COVID-19 or pneumonia treatments in hospitalized patients
This trial tests different treatments for serious lung infections in people who are already in the hospital. It may help doctors learn which treatment works best for recovery and survival when pneumonia-like illness is suspected.
BrusselsAges birth+ - NCT04382846RecruitingPhase 3
Testing new treatment combinations for COVID-19
This trial studies new drug treatment plans for people who currently have COVID-19. If it works better than standard care, it could improve recovery for patients.
TantaAges 18 years+ - NCT04389463Recruiting
Study of heart surgery outcomes during COVID-19
This study looks at how people do after heart or chest surgery when they test positive for COVID-19. It may help doctors understand risks and outcomes for surgical patients during the pandemic.
NantesAges 18 years+ - NCT04391816Recruiting
Study of how alcohol use changed during the COVID-19 pandemic
This study follows people over time to understand how the COVID-19 pandemic affected alcohol use and related health or behaviors. You may help by answering short surveys by phone or online on a regular schedule.
Bethesda, MarylandAges 18–100 - NCT04402086Recruiting
Rheumatology patient and skin sample registry study at Yale
This study builds a health record and blood/skin sample collection for people with rheumatic autoimmune diseases who are getting care at Yale. It may help researchers understand these conditions and develop better tests or treatments over time.
New Haven, ConnecticutAges 18–99 - NCT04404062Recruiting
COVID-19 test study using blood and swab samples
This study checks whether different COVID-19 tests (a blood test and swab-based tests) can detect or confirm infection. If you join, you’ll follow the study steps so researchers can compare results and improve testing.
London, LondonAges 5–70 - 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 - NCT04424992Recruiting
Observing hospitalized adults with COVID-19 lung infection
This study follows adults who are hospitalized with COVID-19 in the lungs. The goal is to better understand how COVID-19 behaves in the hospital over time.
MonzaAges 18 years+ - NCT04425421Recruiting
Treatment plan for children with Burkitt lymphoma
This trial uses a recommended treatment approach for children who have Burkitt lymphoma, a specific type of blood cancer. It may help by guiding care when the full standard treatment schedule can’t be followed for every child.
OuagadougouAges Up to 18 years - NCT04429594Recruiting
Study tracking COVID-19 infection rates in the public
This study looks at how often SARS-CoV-2 (the virus that causes COVID-19) infection happens in people who may have been exposed in the community. It may help researchers understand infection rates and patterns in the general population.
NiceAges 18 years+ - NCT04430257Recruiting
PrEP for people at higher risk of HIV
This study checks whether taking HIV prevention medicine called PrEP can help protect people who are not living with HIV but have recent risk of HIV exposure. You may qualify if you have ongoing risk and are not already taking PrEP.
Cambridge, MassachusettsAges 18 years+ - NCT04436991Recruiting
Testing antibiotic doses in older adults in the emergency room
This study looks at how best to dose certain antibiotics in people age 75 and older who are admitted to a geriatric (older-adult) hospital unit. It aims to measure antibiotic levels in the body to see whether dosing can be improved for older patients.
GhentAges 75 years+ - NCT04439916Recruiting
Preventing CMV after lung transplant in special donor/recipient pairs
This study looks at how to prevent and monitor a virus called CMV after a lung transplant. It is for adults who are not carrying CMV themselves, but who receive lungs from donors who are CMV-positive, and it may help tailor safer follow-up care after transplant.
Edmonton, AlbertaAges 18 years+ - NCT04442191RecruitingPhase 2
Convalescent plasma for hospitalized COVID-19 patients over 40
This trial tests whether donated “recovered patient” plasma (antibodies from people who had COVID-19) can improve outcomes for people hospitalized with COVID-19. It focuses on patients early in their illness who need a small amount of oxygen.
Chicago, IllinoisAges 40 years+ - NCT04443179Recruiting
Baby brain scans in England to study early development
This study does brain imaging (brain scans) in babies to better understand early brain development and how factors like family history and COVID-19 might relate to development. It may help researchers learn which babies could need extra support later.
LondonAges 16–75 - NCT04445285RecruitingPhase 2
Test drops to thin lung mucus in severe COVID-19
This Phase 2 trial tests rhDNase (a medication similar to Pulmozyme) to improve outcomes and reduce the risk of death in people with severe COVID-19 causing breathing failure. It’s meant for adults who need high-flow oxygen or a breathing machine.
Mobile, AlabamaAges 18 years+ - NCT04446676Recruiting
Stabilization method after staged knee revision for infection risk
This study compares two ways of stabilizing a knee implant after a two-step (staged) knee revision to see which better prevents reinfection. It may help people trying to avoid another infection after treatment of a previously infected knee implant.
Otwock, Masovian VoivodeshipAges 18–90 - NCT04447742Recruiting
Study of how healthy babies’ gut microbes develop from birth
This study follows pregnant people from about 20 weeks until delivery, to understand how gut microbes (tiny organisms in the intestines) develop in healthy babies. It may help researchers learn how early-life gut development affects health later on.
BernAges 18–45 - NCT04448145Recruiting
Study why COVID lasts after recovery
This study looks at what factors may make COVID-19 symptoms or infection effects last after someone has recovered. It also collects certain body samples to better understand why this persistence happens.
New York, New YorkAges 7 years+ - NCT04448951Recruiting
Study of immune response in early sepsis or septic shock
This trial looks at how the immune system behaves in the first day after septic shock begins. It may help researchers find better ways to support the body’s immune balance during sepsis, but you must be enrolled very quickly.
Pilsen, Česká RepublikaAges 18 years+ - NCT04471493Recruiting
Study of children’s common infections in a clinic program
This trial is for children under 16 who have one of several common infections seen in outpatient or clinic visits. It aims to better study and manage these illnesses using a specific clinical documentation software.
CréteilAges 1 day–16 years - NCT04474301Recruiting
Quality of life check for people with melanoma during COVID-19
This study looks at how people with melanoma are feeling during the COVID-19 pandemic, including quality of life. You may be asked to share information through surveys or study contact so the researchers can understand needs and concerns.
Houston, TexasAges Any age - NCT04484727Recruiting
Measure lung pressure and breathing in ventilated ICU patients
This study measures lung pressures and breathing mechanics during planned or emergency breathing machine (ventilator) treatment. It may help doctors better understand lung behavior in both healthy and breathing-distressed lungs to improve care.
Gothenburg, Västra Götaland CountyAges 18 years+ - NCT04486638Recruiting
Dengvaxia pregnancy registry in the US
This registry collects information about people who were pregnant and exposed to the Dengvaxia vaccine during pregnancy, to better understand outcomes after that exposure. It may help future mothers and clinicians by building a clearer safety and health record over time.
San JuanAges Any age
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 4,173 recruiting infectious disease studies from the U.S. registry right now, out of 7,061 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.