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
- NCT05357170Recruiting
Testing gut bacteria changes after severe ICU illnesses
This study looks at changes in the microbiome (gut bacteria) in adults after serious ICU illnesses like sepsis, major trauma, or open heart/abdominal surgery. It may help researchers understand why recovery can be harder in some people and guide future treatments.
Gainesville, FloridaAges 18–110 - NCT05359991Recruiting
Exercise study in children and teens with lung or blood conditions
This study tests how safe and effective a structured exercise program is for children and teens. It also compares results between children with sickle cell disease, cystic fibrosis, and healthy peers (and some teens after COVID-19 infection).
Irvine, CaliforniaAges 10–17 - NCT05360914Recruiting
Hospital care at home for older adults with acute illnesses
This trial tests whether it is safe and helpful to manage certain sudden (acute) infections and medical problems with hospital-level care delivered at home or in a nursing home. It may help you avoid unnecessary hospital stays while still getting close medical follow-up.
SilkeborgAges 65 years+ - NCT05361603Recruiting
Screening for hepatitis B, C, and HIV at the same time
This trial tests how acceptable it is for people who use services outside traditional clinics to be screened for hepatitis B, hepatitis C, and HIV during the same visit. If you join, you would be asked to participate and provide consent for the screening process.
Limoges, Haute VienneAges 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+ - NCT05368974Recruiting
Pregnancy registry for hepatitis C treatment timing
This study is a pregnancy registry that collects information about people who have hepatitis C during pregnancy and took hepatitis C medicines early in pregnancy. It aims to better understand the safety and outcomes of treatment around conception.
Atlanta, GeorgiaAges Any age - NCT05371353Recruiting
Study of how long HPV vaccine immunity lasts
This study checks how well the HPV (cancer-preventing) vaccine protection stays in your body over time. It may help confirm the vaccine’s “long-lasting” immune response and guide future vaccination confidence.
Yangchun, GuangdongAges 9–45 - NCT05372861Recruiting
Eye test using nanopore sequencing for endophthalmitis
This trial studies endophthalmitis, an infection inside the eye, using a genetic test to better understand what’s causing it. It may help doctors learn more about the infection and guide treatment decisions in the future.
Graz, StyriaAges 18–99 - NCT05373758Recruiting
Help for people whose HIV treatment is not working
This trial tests different ways to manage “virologic failure,” meaning HIV viral load stays high while taking TLD (a common HIV medicine combination). It may help people better control the virus and improve treatment results, especially in parts of sub-Saharan Africa.
DurbanAges 15 years+ - NCT05378139Recruiting
At-home and hospital wireless monitoring for worsening health
This trial tests a system that continuously checks vital signs (like heart rate and breathing) using wireless sensors and sends automatic alerts if you seem to be getting worse. It may help clinicians spot problems sooner whether you’re being monitored at home or around a major surgery hospital stay.
Copenhagen, CopenhagenAges 18 years+ - NCT05379556Recruiting
Study for long COVID sexual and reproductive symptoms
This study is looking at people who have recovered from COVID-19 but still have ongoing (long COVID) sexual, reproductive, or related symptoms. Researchers want to learn about these lingering problems and what may help, based on your answers and study procedures.
Naples, ItalyAges 18 years+ - NCT05383963Recruiting
Using ICU routine data to diagnose sepsis sooner
This study checks whether information collected routinely in the ICU can help doctors recognize sepsis or septic shock earlier. If it works, it may improve how quickly diagnosis happens and potentially outcomes for patients.
BerlinAges 18 years+ - NCT05383742RecruitingPhase 2
Compare 6- vs 9-month treatment for tuberculous meningitis
This Phase 2 study tests whether a shorter, stronger 6-month set of medicines works as well as the usual 9-month regimen for tuberculous meningitis (TB infection in the covering of the brain/spinal cord). The goal is to improve outcomes while reducing treatment time and exposure.
Porto AlegreAges 15 years+ - NCT05384132Recruiting
Dental gel trial with deep cleaning for gum disease
This study tests whether a new dental gel used along with deep gum cleaning (scaling and root planing) can improve periodontitis. If you qualify, you would receive standard gum treatment plus the study gel, then be followed over time.
Birmingham, AlabamaAges 18–85 - NCT05387304Recruiting
Follow-up study for people with COVID infection in Shanghai
This study follows people in Shanghai who have tested positive for the COVID virus, even if they have no symptoms yet. It helps doctors understand what happens after infection and in people who later get a diagnosis.
ShanghaiAges Any age - NCT05387369Recruiting
Real-world study of Paxlovid for hospitalized COVID-19 patients
This study checks how Paxlovid works in everyday care for people who are hospitalized with confirmed COVID-19. If you have a positive COVID-19 test and mild to moderate symptoms, this trial may help doctors understand how well the treatment performs outside of tightly controlled settings.
ShanghaiAges 12 years+ - NCT05388773RecruitingPhase 2
Surgery then lower-dose radiation for p16+ throat cancer
This Phase 2 study tests whether removing the tumor through the mouth, followed by a reduced course of radiation, can control HPV-related (p16+) oropharynx throat cancer. It may help reduce treatment intensity after surgery, while still aiming to keep the cancer from coming back.
Pittsburgh, PennsylvaniaAges 18 years+ - NCT05389904Recruiting
Prevent C. difficile infection in high-risk hospital patients
This trial tests whether giving prevention right away can stop C. difficile infection from developing in people identified as high risk after a VRE swab. It may help reduce stomach infection and serious complications during hospital stay.
Boston, MassachusettsAges 18 years+ - NCT05390424Recruiting
Test dried blood spots for hepatitis and HIV
This study checks blood from a simple dried blood spot to screen for hepatitis B, hepatitis C, and HIV. It may help find infections early, which can allow earlier treatment.
AvranchesAges 18 years+ - NCT05392387Recruiting
Treatment and outcomes study for long-term hepatitis B
This trial looks at people with long-term hepatitis B infection and studies how treatment may affect health over time. It may help you understand whether your care improves outcomes for chronic hepatitis B.
Changsha, HunanAges 18–79 - NCT05394363Recruiting
Victoria children birth-cohort study with parent/guardian consent
This study follows children born in a specific 2-year window and their parents or guardians over time. It helps researchers understand how children and families change as they grow, which can guide future health supports in Victoria.
Parkville, VictoriaAges 1 day+ - NCT05401071RecruitingPhase 2/Phase 3
Test shorter rifapentine-based treatment for drug-sensitive TB
This trial studies whether a rifapentine-based TB regimen can work just as well while shortening treatment time. It’s for people with rifampicin-sensitive, smear-positive lung tuberculosis.
Guiyang, GuizhouAges 18–60 - NCT05401292RecruitingPhase 4
Skin prep for planned foot and ankle surgery
This trial studies whether a specific skin-prep approach before elective (planned) foot and ankle surgery can help prevent infection. You may be able to take part if your surgery is not for an injury and you meet the age and health requirements.
Columbia, MissouriAges 18 years+ - NCT05403710Recruiting
Botox injections for people with hidradenitis suppurativa
This trial studies whether botulinum toxin (Botox) injections can improve hidradenitis suppurativa (HS), a painful skin condition with recurring bumps and tunnels. You might be a good match if you have long-lasting HS in more than one body area and can safely do skin-area treatment visits (including skin biopsy if needed).
Worcester, MassachusettsAges 18–75
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.