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
- NCT04367857Recruiting
Study of COVID antibody levels in healthcare workers
This study measures how many healthcare workers have COVID antibodies (proof of past infection or immune response). Results may help estimate how widespread COVID exposure has been among hospital staff.
New York, New YorkAges 18 years+ - NCT04327570Recruiting
Study of immune responses in hospitalized COVID-19 patients
This study looks closely at how your immune system responds during COVID-19. It may help researchers better understand why COVID-19 varies from person to person and how to improve future care.
LeuvenAges 18 years+ - NCT04372875Recruiting
Help for teens using health tech in the emergency room
This trial tests whether using a health information technology tool in the emergency department can improve sexual health care and reduce health disparities for teens. It focuses on gathering survey and screening information so care can better meet needs.
Washington D.C., District of ColumbiaAges 15–21 - NCT04330599Recruiting
COVID-19 study following people in the UK
This observational study follows how COVID-19 affects people in the UK over time. It may help researchers understand patterns of illness and health changes, without testing a new treatment.
London, County (optional)Ages 16 years+ - NCT04357574Enrolling by invitation
Testing a radiation treatment decision system during COVID-19 changes
This trial looks at whether a computer system can help guide high-intensity radiation treatment decisions when care has been disrupted during COVID-19. It may help improve how treatment is planned and adjusted during times when patients’ situations change.
Durham, North CarolinaAges 18 years+ - NCT04369599Enrolling by invitation
Test chest vibration during ventilation for severe lung failure
This study looks at whether a special chest “vest” and related lung measurements can improve breathing in people with sudden severe lung failure who need a breathing machine. You may be eligible if you have ARDS and can safely use the vest during mechanical ventilation.
Atlanta, GeorgiaAges 18 years+ - NCT04278404Recruiting
Drug safety study for children already on certain medicines
This study measures how certain medicines move through the body and checks their safety in children. It may help doctors better understand dosing and side effects in kids who are already receiving these treatments, or in some kids who recently tested positive for COVID-19.
Phoenix, ArizonaAges birth–20 years - NCT04367883Recruiting
Study of flu shots and blood-pressure medicines in COVID
This study looks at people who were admitted to the hospital in Terrassa starting in March 2020. Researchers want to see whether having a flu vaccine and using certain blood-pressure medicines (ACE inhibitors or ARBs) is linked to how COVID infection develops.
Terrassa, BarcelonaAges Any age - NCT04263792RecruitingPhase 1
Scan trial to track a new tracer in suspected bacterial infections
This Phase 1 study uses a special scan tracer ([18F]F-TMP) to see how it moves in the body and how fast it changes in people with suspected or known bacterial infections. It’s mainly testing the scan’s behavior and safety, which may help future infection-targeting imaging.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04359186Recruiting
Stopping HIV medicines briefly with close monitoring
This study looks at a planned, supervised “treatment interruption” period for people with HIV who are very well controlled on HIV medicines. It mainly aims to understand what happens when therapy is paused and how to reduce the risk of passing HIV to others.
San Francisco, CaliforniaAges 18 years+ - NCT04362150Recruiting
Study of long-term effects after COVID-19 infection
This study follows adults who had COVID-19 to learn how the illness can affect health over the long term. It may help researchers understand lasting symptoms and who is at higher risk, which could improve future care.
San Francisco, CaliforniaAges 18–100 - NCT04330521Recruiting
Cancer patients share experiences during the COVID-19 outbreak
This study asks adult cancer patients to complete a survey and talk in an interview about how COVID-19 affected their care and daily life. Your answers may help researchers understand what challenges cancer patients faced during the pandemic.
Stanford, CaliforniaAges 18–99 - NCT04318366Recruiting
Study of COVID-19 samples and how patients respond to treatment
This trial collects and studies COVID-19 test results and other patient information to better predict treatment response and outcomes. Your sample(s) help researchers understand who may improve, worsen, or need different care.
Milan, LombardyAges 18 years+ - NCT03963622Recruiting
Test of careful breathing support for severe lung distress
This study compares a more careful ventilation approach for people with severe lung breathing failure (ARDS). It aims to improve outcomes by using a specific strategy for how the ventilator controls breathing.
New York, New YorkAges 18 years+ - NCT04198740Recruiting
Test tear fluid and eye chemistry patterns in eye surface diseases
This study looks at tiny chemical patterns in tear fluid to better understand different causes of eye surface problems. Your participation may help researchers compare healthy eyes with conditions like dry eye, infections, or allergies.
Montreal, QuebecAges 18 years+ - NCT04226313Recruiting
Home self-swab tests for people not doing cervical screening
This study looks at whether a home self-sampling swab can help people who haven’t joined cervical cancer screening in the past few years. If you qualify, you’ll be asked to collect a swab yourself so it can be tested, aiming to make screening easier to access.
OlomoucAges 30–65 - NCT04169542Recruiting
Study on how COVID-19 affected costs for breast surgery patients
This study asks people with breast cancer who are having breast surgery about how COVID-19 affected their out-of-pocket costs, work income, and job stability. Your answers may help improve support for patients during public health emergencies.
Conroe, TexasAges 18 years+ - NCT04197596RecruitingPhase 1/Phase 2
BK infection immune-cell treatment after transplant or weak immunity
This Phase 1/2 study tests lab-made immune cells that specifically target BK virus in people whose BK infection keeps coming back or doesn’t improve. It may help by boosting the body’s ability to clear the virus, especially when standard antiviral treatments don’t work or can’t be tolerated.
San Francisco, CaliforniaAges 1 month–79 years - NCT04230356RecruitingPhase 2
Viral immune T-cells for viral infections after stem cell transplant
This Phase 2 study tests donor-made immune T-cells that specifically target viruses to treat or prevent viral infections after a stem cell transplant. It may help your body control dangerous viruses like adenovirus, CMV, EBV, and BK virus, while checking safety with different timing of the treatment.
Cincinnati, OhioAges Any age - NCT04220671Enrolling by invitationPhase 4
Measles vaccination for children during hospital visits
This trial offers a measles vaccine to children who have not had full measles shots, timed around visits to a children’s hospital. It aims to see whether vaccinating children at these health care contacts helps improve protection against measles.
BissauAges 9 months–4.9 years - NCT04178915Enrolling by invitation
Blood marker study to predict severe bacterial lung infection
This study looks at specific immune cells and how fats are transported in the blood to predict which people will have a severe bacterial infection (like pneumonia or sepsis). Your results may help doctors identify higher-risk patients earlier.
MinskAges 18–60 - NCT04162938Recruiting
Tablet app to help emergency patients learn about hepatitis C
This trial tests whether a patient-friendly electronic app given in the emergency department can increase what you know about hepatitis C and help you move to the next steps of care. It may be most helpful for people who are hepatitis C–positive but don’t yet have clear information about their status.
Baltimore, MarylandAges 18–100 - NCT04195633RecruitingPhase 2
Haploidentical donor stem cell transplant to treat blood cancers
This Phase 2 trial tests whether a specific stem cell transplant method (from a related “half-matched” donor) plus conditioning chemo and radiation can improve outcomes for several blood cancers. It may help people whose cancer is in remission but still considered high risk, or those who have had limited response after prior treatment.
Seattle, WashingtonAges 6 months+ - NCT04203979Recruiting
Sepsis care tailored to patients
This study looks at how to better recognize and manage sepsis (a serious body-wide reaction to infection) and tailor care to the individual. You may be eligible if you are newly admitted to the emergency department and your care is handled by a rapid response team for sepsis.
OsloAges 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.