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
- NCT05495906RecruitingPhase 4
Lower-dose HPV vaccine study for women with HIV
This trial tests whether giving a lower dose of the HPV vaccine can still be effective and safe for women living with HIV. It may be helpful if you need HPV protection and the study’s dose schedule could reduce vaccine burden.
Surrey, British ColumbiaAges 18–45 - NCT05496036RecruitingPhase 2
Pembrolizumab before surgery for resectable Merkel cell cancer
This trial tests pembrolizumab (an immune therapy) given before surgery to shrink Merkel cell carcinoma and improve outcomes. Participants also have extra tumor biopsies to study biomarkers, which may help explain who benefits most.
Philadelphia, PennsylvaniaAges 18 years+ - NCT05502380RecruitingPhase 3
Antibiotic prevention study for high-risk bone and spine surgeries
This Phase 3 study tests whether giving a broad set of preventive antibiotics before certain high-risk orthopedic surgeries lowers the chance of serious wound or bone infection. It mainly targets people who have contaminated wounds, tumor-related surgery, or known high-risk germs on the skin.
ZurichAges 18 years+ - NCT05504057Recruiting
Testing antihistamines and amantadine for COVID-19
This study looks at how ongoing antihistamines or amantadine treatment affects the course of COVID-19. If you already take one of these medicines regularly, the study may help understand whether it offers any benefit.
Terrassa, BarcelonaAges Any age - 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 - NCT05507125Recruiting
Study of how inflammatory genes work in hidradenitis
This study looks at how certain body “inflammatory genes” behave in people with hidradenitis suppurativa. It may help researchers understand what drives this condition and how future treatments could be targeted.
Birmingham, AlabamaAges 18–89 - NCT05509959Recruiting
Tech-based peer support for women with HIV and low adherence
This study tests a phone/computer-based peer support program to help women with HIV improve how consistently they take their HIV medicine (ART). It may help if you’ve had trouble meeting your medication schedule recently and you’re eligible to safely participate.
La Jolla, CaliforniaAges 18 years+ - NCT05515770RecruitingPhase 3
Injectable PrEP shot for HIV prevention in higher-risk adults
This Phase 3 study tests whether an injectable HIV prevention medicine (cabotegravir) given before exposure can help prevent HIV in people at higher risk. You may join if you are HIV-negative and meet specific sexual health, medication, and health-testing requirements.
Rio de JaneiroAges 18–30 - NCT05516069Recruiting
Using a self-serve kiosk to test for HIV and reduce harm
This study tests an interactive, self-serve machine (kiosk) to help people access HIV testing and other harm-reduction services more easily. It may help by making testing and support more private and simpler to use.
Moncton, New BrunswickAges 16 years+ - 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 - NCT05524649Recruiting
Probiotics for healthy newborns’ poop bacteria balance
This study looks at whether giving probiotics to healthy newborns changes the bacteria in their stool. It may help researchers understand early gut health, but it is only for babies who meet specific health and timing requirements.
Alcaldía Coyoacán, PueblaAges 1 day–3 months - NCT05526105Recruiting
Ultrasound for stomach fluid in ICU patients
This trial tests using an ultrasound scan to estimate stomach fluid and volume in ICU patients. It may help clinicians better assess aspiration risk and prepare for safe anesthesia or procedures.
Lebanon, New HampshireAges 18–100 - NCT05531747Recruiting
Study of stress in skin stem cells in hidradenitis
This study looks at how “stress” inside skin cells may be connected to hidradenitis suppurativa, a long-term painful skin condition with recurrent bumps and tunnels. Your participation may help researchers understand what drives the disease.
Créteil, Val-de-marneAges 18–99 - NCT05531773Recruiting
Study for ongoing symptoms after COVID-19
This trial studies people with mild to moderate COVID-19 symptoms to better understand and help “post-COVID” condition (ongoing effects after infection). You may be eligible if you’re an adult with a recent confirmed COVID-19 test and you agreed to take part.
DüsseldorfAges 18 years+ - NCT05534009Recruiting
Study of healthcare workers’ COVID infection and vaccine history
This study gathers information about healthcare workers (adults) and tracks your past COVID-19 infection and vaccination history. It may help researchers understand how COVID affects healthcare workers and how vaccines relate to infection outcomes.
DüsseldorfAges 18 years+ - NCT05534750RecruitingPhase 2
Early test of two antibiotics for new lung TB
This trial tests how quickly two antibiotics (tedizolid vs linezolid) can kill tuberculosis germs in the lungs after a first TB infection is suspected. It may help doctors learn which option works faster and safely in the early treatment phase.
ParisAges 18–75 - NCT05536219Recruiting
Study how autoantibodies affect virus levels in severe lung infections
This study measures blood immune “autoantibodies” that may affect how much virus is in the body during severe respiratory infections. It may help doctors understand which patients are more likely to have higher virus levels and could guide future treatment choices.
Bron, RhoneAges Any age - NCT05537935RecruitingPhase 4
Low-dose naltrexone for nerve pain in people with HIV
This trial studies whether a low dose of naltrexone can reduce long-lasting nerve-related pain in adults living with HIV. It may help if your pain has been ongoing and you have stable HIV control.
Atlanta, GeorgiaAges 18–75 - NCT05539014Recruiting
Study of newly diagnosed tuberculosis patients at Avicenne Hospital
This study follows people who are newly treated for tuberculosis, including lung and non-lung (extra-lung) cases. It may help doctors better understand tuberculosis and how patients respond after treatment starts.
BobignyAges 18–80 - NCT05539482Recruiting
Community education to help detect COVID-19 early and prevent illness
This study tests community-based health education in Hong Kong to help people recognize COVID-19 early, get vaccinated, and use everyday self-protective steps. It may help participants learn practical ways to lower their risk and respond sooner if symptoms appear.
Hung HomAges 12 years+ - NCT05539560Recruiting
Olfactory training for loss of smell after COVID-19
This trial studies whether daily smell training can improve smell loss caused by COVID-19. It may help people regain smell and possibly reduce related symptoms like distorted smells.
CopenhagenAges 18 years+ - NCT05544019RecruitingPhase 1
Testing an investigational drug for mature B-cell cancers
This early (Phase 1) study tests SGR-1505, an experimental treatment, in people with certain mature B-cell cancers. It’s mainly designed to see how the drug works in the body and to check safety, and it may offer an option if standard treatments aren’t enough.
Gilbert, ArizonaAges 18 years+ - NCT05553236Recruiting
Using gene testing to guide treatment for drug-resistant tuberculosis
This study uses next-generation gene testing to help manage active drug-resistant tuberculosis. It may help doctors choose the most appropriate treatment by better identifying the TB’s drug resistance.
Cape TownAges Any age - NCT05553743Recruiting
Study of donated breast milk and how it affects child health
This study looks at breast milk donated for research and how it may relate to infant and child health. If you’re an adult who is breastfeeding and can donate extra milk, you may be able to participate.
San Diego, CaliforniaAges 18 years+
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.