Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 3,968 recruiting studies in this area right now.
By phase
- Not applicable2,549
- Phase 2357
- Phase 4301
- Phase 1287
- Phase 3282
- Phase 1/Phase 2132
- Phase 2/Phase 360
Top conditions
Leading sponsors
- National Institute of Allergy and Infectious Diseases (NIAID)88
- 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 Alabama at Birmingham23
- University of Oxford23
- University of Washington23
Where studies are running
- California233
- Maryland142
- Alabama93
- New York73
- Florida72
- Texas62
- Massachusetts57
- Arizona48
- Pennsylvania43
- Illinois41
Recruiting studies3,968 total
- NCT05348148Recruiting
Compare treatments for moderate to severe rhinitis symptoms
This trial compares different ways to reduce rhinitis symptoms in people with moderate to severe nasal irritation. It may help find which treatment works best for you, depending on what type of rhinitis you have and your recent health and medication history.
Luodong, YilanAges 6–65 - NCT04684602RecruitingPhase 1/Phase 2
Study of stem cells for several short- and long-term illnesses
This early-stage study tests whether injections of mesenchymal stem cells can be safe and helpful for certain chronic (long-term) and acute (short-term) conditions. You might be considered if you can consent, are able to return for follow-up visits, and do not have key reasons that would make stem-cell treatment unsafe.
Culver City, CaliforniaAges 18 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+ - NCT04672525RecruitingPhase 3
Rifabutin versus rifampicin for knee or hip staph implant infection
This Phase 3 trial compares two antibiotics—rifabutin and rifampicin—for treating staphylococcal (staph) infections around hip or knee joint implants when the implant is kept in place after cleaning (DAIR). It aims to see which drug works better to stop the infection from coming back.
AmiensAges 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 - 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+ - 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 - NCT05426720Recruiting
Looking for TB lung damage risk factors and blood markers
This study looks at what increases the risk of long-term lung damage after active pulmonary tuberculosis (TB). It also tests whether certain blood or other markers can predict who is more likely to have lung problems later.
BeijingAges 25–60 - NCT05085171RecruitingPhase 3
Care plan to help reduce death risk in advanced HIV
This Phase 3 study tests an enhanced clinic care package for adults with advanced HIV to lower the risk of death. It may help by improving follow-up and treatment support for people who need closer care.
KampalaAges 18 years+ - NCT05461651Recruiting
Preventing knee infections after knee replacement
This study looks at ways to lower the risk of infection after knee replacement surgery (with or without vancomycin, an antibiotic). If you’re a good candidate, you may receive an approach aimed at preventing post-surgery infections and related complications.
Otwock, Masovian VoivodeshipAges 40 years+ - NCT04767945Recruiting
Cirrhosis patient hospital registry
This study keeps a record of people who have liver cirrhosis and were admitted to the hospital after a worsening event. It may help doctors better understand what leads to hospital stays and improve future care.
Banská BystricaAges 19 years+ - NCT05491941Recruiting
Testing ways to improve care for sepsis patients
This trial looks at how to best put proven sepsis care steps into practice in the emergency department. It may help you or other patients receive faster, more consistent treatment for sepsis.
Providence, Rhode IslandAges 18 years+ - NCT05493267RecruitingPhase 4
Tested immune-cell therapy for drug-resistant tuberculosis
This trial studies an immune-based treatment made from certain T cells (Vγ2Vδ2 T lymphocytes) for multi-drug–resistant tuberculosis (MDR-TB). It may help people whose current drug regimen is not working well or who have limited effective options.
ShanghaiAges 18–65 - NCT05504928Recruiting
School program to prevent hidden heart valve disease
This study tests whether a prevention program done at a specific school can reduce how common “latent” (hidden) rheumatic heart disease is in children. If you attend the study’s school in Tulsipur, this program may be offered to help protect students’ heart health over time.
Tulsi̇̄purAges 5–16 - NCT05518383RecruitingPhase 4
Pediatric B-cell lymphoma treatment study using established care
This trial studies treatment for children and teens with certain B-cell non-Hodgkin lymphomas using a specific treatment protocol. It may help doctors confirm how well the regimen works in young patients and improve care over time.
Moscow, RFAges 1 day–18 years - NCT03240328RecruitingPhase 1
CAR-T therapy study for rebuilding HIV immune defenses
This early-stage study tests whether CAR-T cells can help rebuild the immune system’s ability to fight HIV. You may be a candidate if your HIV is well controlled on standard treatment and you don’t have certain serious infections or organ problems.
Guangzhou, GuangdongAges 18–60 - NCT04667026Recruiting
Study of people living with HIV on treatment
This is an observational study that follows people with HIV who are taking HIV medicines (antiretroviral therapy). It may help researchers understand how treatment is going and what factors relate to doing well on therapy.
Guangzhou, GuangdongAges 14 years+ - NCT03603977Recruiting
Simplified HIV treatment for people living with HIV
This trial looks at whether a simpler set of HIV medicines works for people with confirmed HIV-1 infection. It may help by making treatment easier to follow, while monitoring health with regular blood tests.
Guangzhou, GuangdongAges 18 years+ - NCT03884673Recruiting
Simpler two-drug HIV treatment with dolutegravir and lamivudine
This trial studies whether taking dolutegravir plus lamivudine (a simpler two-drug regimen) can work as well as a standard three-drug HIV regimen for people who have reasons they can’t stay on the usual medicines. You may be offered free treatment if you meet the safety checks and can attend follow-up visits.
Guangzhou, GuangdongAges 18 years+ - NCT05566106Recruiting
Study follow-up for high-risk HPV in people with gynecologic history
This study looks at follow-up care for anal (rear passage) HPV risk in adults who previously had high-risk HPV–related gynecologic changes. It aims to better track disease that may be related to HPV and possibly help guide future monitoring.
ParisAges 18 years+ - NCT05553652Recruiting
A probiotic test for repeat bladder infections
This trial studies ASTARTE™, a probiotic, to see if it can reduce repeat urinary tract infections (UTIs). It may help people who get UTIs often by testing whether the supplement lowers how frequently they come back.
Hvidovre, CopenhagenAges 18–40 - NCT04855773Recruiting
Mobile text-message support to help people stay on PrEP
This trial tests whether phone-based (iPhone/Android) text-message support can improve how consistently people use PrEP, an HIV prevention medicine. It may help you stay on track with refills and clinic visits, especially if you’re at higher risk of stopping PrEP.
San Francisco, CaliforniaAges 15 years+ - NCT03346694Recruiting
Testing a new chest dressing to prevent wound infections
This trial looks at whether a different dressing placed on the chest incision during certain heart surgeries can lower the risk of surgical wound infections. If you are having a sternotomy (a cut through the breastbone), this could help keep your incision cleaner while you heal.
Stanford, CaliforniaAges 18 years+ - NCT05588492RecruitingPhase 4
Rifamycin treatment to prevent TB after kidney transplant
This study looks at whether a rifamycin-containing medicine plan is safe and effective at preventing latent (hidden) TB after a kidney transplant. If your TB test shows you likely have hidden TB, you would be offered treatment to reduce the chance it becomes active TB.
TaipeiAges 20 years+
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 3,968 recruiting infectious disease studies from the U.S. registry right now, out of 6,521 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.