Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 3,966 recruiting studies in this area right now.
By phase
- Not applicable2,544
- Phase 2357
- Phase 4302
- Phase 1287
- Phase 3286
- Phase 1/Phase 2131
- Phase 2/Phase 359
Top conditions
Leading sponsors
- National Institute of Allergy and Infectious Diseases (NIAID)89
- 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 Washington23
- University of Alabama at Birmingham22
- University of Oxford22
Where studies are running
- California234
- Maryland142
- Alabama92
- New York73
- Florida72
- Texas63
- Massachusetts55
- Arizona48
- Pennsylvania44
- Illinois41
Recruiting studies3,966 total
- NCT05455359RecruitingPhase 4
Tube-fed children at high risk for aspiration pneumonia
This Phase 4 study looks at gastrointestinal movement (dysmotility) and how it may increase the risk of aspiration pneumonia in children who eat through a tube and have swallowing safety problems. It may help doctors better prevent lung infections in children who cough/choke and need suction often.
Boston, MassachusettsAges 5–21 - NCT05447559RecruitingPhase 4
Testing how long to give antibiotics after heart surgery
This study looks at how long patients should receive an antibiotic after certain types of heart surgery, to help prevent infections. It may help find the best “duration” of antibiotic prophylaxis after surgery through the breastbone (median sternotomy).
Dallas, TexasAges 18 years+ - NCT05443321Enrolling by invitation
Health information sharing during hospital transfers
This trial studies whether sharing patients’ health information between hospitals during transfers can improve outcomes. You may be included if you are moved from a specific partner hospital to Brigham and Women’s Hospital and admitted to certain hospital units.
Boston, MassachusettsAges 18 years+ - NCT05425524Recruiting
Hospital care bundle study for suspected leptospirosis
This trial tests a structured set of hospital treatments (“care bundle”) for adults with suspected leptospirosis, a serious infection often linked to flood water exposure. It may help by improving how quickly and consistently key care steps are delivered in the hospital.
Bangkok, BangkokAges 18 years+ - NCT05418088RecruitingPhase 1
CAR T-cell therapy for hard-to-treat B-cell cancers
This Phase 1 study tests lab-made immune cells (CAR T-cells) that target CD19, CD20, and/or CD22 in people with certain relapsed or refractory B-cell cancers. It may help by attacking cancer cells that still carry these targets, but eligibility is very specific and includes prior treatments and health/lab requirements.
Columbus, OhioAges 2 years+ - NCT05446571RecruitingPhase 3
Letermovir in pregnancy versus valaciclovir for fetal CMV
This trial tests whether letermovir can treat a baby’s early (first-trimester) congenital CMV infection in pregnancy, compared with the standard drug valaciclovir. The goal is to reduce serious effects from CMV while monitoring safety and pregnancy outcomes.
ParisAges 18 years+ - NCT05453695RecruitingPhase 1
IV DNase for ICU sepsis with organ stress
This Phase 1 study tests whether an IV medicine called DNase I can safely help people with sepsis who are having worsening organ function. It’s designed to see if the treatment is tolerated and could improve outcomes for ICU patients with early sepsis.
Hamilton, OntarioAges 18–100 - NCT05444946Recruiting
Itraconazole alone versus with steroid pills for Aspergillus lung overlap
This trial compares itraconazole taken by mouth alone versus itraconazole plus steroid pills in people who have a mix of two Aspergillus lung conditions. It aims to see which approach works better to control symptoms and lung changes caused by Aspergillus infection.
Chandigarh, ChandigarhAges 15–90 - NCT05434104Recruiting
Trial tests vaginal lactoferrin instead of medicines for BV or thrush
This study checks whether using lactoferrin vaginal pessaries can work for bacterial vaginosis (BV) or thrush, compared with standard antibiotic or antifungal tablets. It’s a feasibility study, meaning the main goal is to see if the approach and home sample collection are practical.
LondonAges 16–50 - NCT05453513Recruiting
Study how depression and cannabis affect the brain in young adults with HIV
This study looks at brain activity to understand how depression and cannabis use may be linked in young adults living with HIV. It mainly involves questionnaires, mental health screening, and brain scans, which may help researchers better understand risk factors and brain “underpinnings.”
Miami, FloridaAges 18–59 - NCT05452564RecruitingPhase 2
Baricitinib to help reduce HIV in the brain
This Phase 2 study tests baricitinib to see if it can lower HIV activity in the brain (CNS) for people already on stable HIV treatment. If you have well-controlled HIV in your blood, this trial looks for additional benefit inside the nervous system.
Atlanta, GeorgiaAges 18–65 - NCT05458700Recruiting
Study of complicated urinary tract infections
This study looks at complicated urinary tract infections (UTIs), which are infections in the urinary system that happen when there is an underlying issue like a urinary catheter, blockage, or other urinary tract problem. The trial aims to gather information to better understand and treat these infections.
Seville, SevillaAges 18 years+ - NCT01829204Recruiting
Health study registry for vaginal conditions
This study is building a database (a secure record) to learn about vaginal/vulva conditions in women. You may be invited if you’re coming in for a routine women’s health visit or you’re being seen for a vaginal concern, and you can share information safely.
Midland, TexasAges 21–75 - NCT05389423RecruitingPhase 1
Pomalidomide plus chemotherapy for HIV-related lymphoma
This Phase 1 study tests whether a combination of pomalidomide and a dose-adjusted chemotherapy plan (EPOCH), with or without rituximab, can treat certain aggressive B-cell lymphomas in people living with HIV. It aims to find a safe dosing approach and see how well the treatment works for specific lymphoma types or high risk of spread to the brain.
Bethesda, MarylandAges 18–120 - 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+ - NCT05373043Recruiting
Long COVID recovery and exercise study
This study looks at how long-term COVID affects your body and tests an exercise program to help with recovery. It compares people with long COVID to those who recovered fully.
Salt Lake City, UtahAges 18 years+ - NCT05369052RecruitingPhase 3
New antibiotic for moderate or severe diabetic foot infections
This Phase 3 trial tests a new medicine (contezolid acefosamil, and contezolid) to treat moderate or severe diabetic foot infections. It compares the new treatment to linezolid to see which works better and is safer for adults.
Corona, CaliforniaAges 18 years+ - NCT05400824Recruiting
Health study in La Réunion
This study looks at how metabolism and infections affect people in La Réunion. Participants will provide consent for genetic analysis and answer health questions.
La Réunion, Saint-PierreAges 18–67 - 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+ - 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+ - 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+ - 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+ - NCT05405491Recruiting
DNA test to guide antibiotic use for pneumonia in ICU patients
This study tests whether using a DNA test on lung fluid can help doctors choose better antibiotics for pneumonia in ICU patients with weakened immune systems. It may lead to more effective treatment and fewer side effects.
LilleAges 18 years+ - NCT05384561Recruiting
Training your sense of smell to help after COVID
This trial studies whether structured smell (olfactory) training can improve ongoing smell problems after COVID-19. It may help people whose sense of smell hasn’t fully returned long after the infection.
Trois-Rivières, QuebecAges 18 years+
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 3,966 recruiting infectious disease studies from the U.S. registry right now, out of 6,624 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.