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
- NCT06500156Recruiting
Metabolic patterns in septic shock patients
This study looks at how the body uses energy (metabolism) in people with septic shock. It collects information from standard monitoring during a fluid challenge (a small IV fluid test) to find patterns that might help doctors better understand and treat septic shock.
Sabadell, BarcelonaAges 18 years+ - NCT06498817Recruiting
Cholera home care for diarrhea patients without running water
This trial tests a 7-day hospital-based program to help patients with diarrhea who lack running water at home. It aims to prevent the spread of cholera and improve recovery.
MānikganjAges Any age - NCT06510010RecruitingPhase 2
Chemo plus H. pylori treatment for advanced stomach cancer
This trial tests whether adding H. pylori bacteria treatment to standard chemotherapy (before and after surgery) can improve outcomes for people with locally advanced stomach cancer. It combines oxaliplatin and S-1 chemo with antibiotics to clear the infection.
GuangzhouAges 18–75 - NCT06509139Enrolling by invitationPhase 4
Finding the best treatment length for H. pylori infection
This study tests how long (10 or 14 days) a combination of four medicines (bismuth quadruple therapy) should be taken to best treat H. pylori infection, and whether the best duration differs between women and men. It aims to find the shortest effective treatment to reduce side effects.
TainanAges 18–100 - NCT06501781Recruiting
PUSH: Helping People with HIV and Substance Use
This study tests if a program that encourages positive activities (behavioral activation) can help people with HIV or on PrEP who also use substances improve their health. It focuses on those receiving long-acting injectable medications for HIV prevention or treatment.
Washington D.C., District of ColumbiaAges 18–88 - NCT06513286RecruitingPhase 1/Phase 2
Therapeutic hepatitis B vaccine study using a two-part shot
This trial tests a new vaccine to treat chronic hepatitis B. It's for people who have been on antiviral medication for at least 6 months and still have a low level of the virus in their blood.
FrankfurtAges 18–70 - NCT06498414RecruitingPhase 2/Phase 3
Shorter and safer treatment for latent TB
This trial tests a shorter, safer treatment for people with latent TB infection (TB germs in your body but not making you sick). The goal is to prevent you from getting sick with active TB later.
CotonouAges 5 years+ - NCT06506188Recruiting
Improving HIV prevention for breastfeeding women in Malawi
This study looks at how to make it easier for women in Malawi to stay on PrEP after giving birth while breastfeeding. Researchers will check medical records and ask some women to do a short survey and a finger stick blood test.
LilongweAges 15–99 - NCT06511063RecruitingPhase 2
Antiviral trial for treating long covid symptoms
This study tests whether antiviral drugs (Truvada and Selzentry) can help people with long COVID. You may qualify if you have had long COVID symptoms for at least 6 months, including fatigue and post-exertional malaise.
New York, New YorkAges 18 years+ - NCT06510699RecruitingPhase 2
Genetics to improve fungal infection treatment
This trial tests if using genetic information can help doctors choose the right dose of the antifungal drug voriconazole. It aims to improve treatment and reduce side effects for people with fungal infections.
Seattle, WashingtonAges 2 years+ - NCT04150497RecruitingPhase 1/Phase 2
Testing a new cell therapy for CD22-positive leukemia
This trial tests UCART22, a new cell-based treatment, for people with relapsed or refractory B-cell acute lymphoblastic leukemia (B-ALL) that has the CD22 marker. It may help by attacking leukemia cells that carry CD22.
Los Angeles, CaliforniaAges 15–50 - NCT06489964Recruiting
Paying for unfunded vaccines at your pharmacy
This trial tests a way for you to get vaccines that are recommended but not free, like FluMist for kids, Shingrix for shingles, or RSV vaccines. You pay a copayment at a participating pharmacy instead of the full price.
Halifax, Nova ScotiaAges 2 years+ - NCT06484686Enrolling by invitationPhase 4
Long-term immunity study of chickenpox vaccine booster
This study follows up people who were in a previous phase 3 chickenpox vaccine trial. It checks how long protection from a booster dose lasts, by taking a blood sample.
Zhengzhou, HenanAges 8–16 - NCT06485505RecruitingPhase 1
Isotretinoin vs light for nail fungus treatment
This trial compares two treatments for nail fungus (onychomycosis): a medication called isotretinoin and a special light therapy (excimer light) used alongside standard care. It aims to find which works better as an add-on treatment.
Zagazig, ZagazigAges 18–60 - NCT06481163RecruitingPhase 2
Telacebec treatment for Buruli ulcer in adults
This trial tests whether the drug telacebec can treat Buruli ulcer, a skin infection caused by bacteria. It aims to find a simpler, shorter treatment for people with mild to moderate lesions.
Geelong, VictoriaAges 18 years+ - NCT06494072RecruitingPhase 4
Short vs standard antibiotics for kids hospitalized with pneumonia
This trial compares a shorter course of antibiotics to the usual longer course for children hospitalized with uncomplicated bacterial pneumonia. The goal is to see if fewer days of antibiotics work just as well, which could reduce side effects and make treatment easier.
Milwaukee, WisconsinAges 3 months–18 years - NCT06488846Enrolling by invitation
Giving HIV injections at home with a helper
This study tests whether having a trained friend or family member give you your HIV injections at home is safe and works as well as getting them at a clinic. You may qualify if you are already on the injectable HIV medication cabotegravir/rilpivirine (Cabenuva) and have a support person willing to help.
San Francisco, CaliforniaAges 18 years+ - NCT06495021Recruiting
Osteopathic manipulation for newly diagnosed respiratory illness in older adults
This study tests whether osteopathic manipulation (a gentle hands-on treatment) helps older adults recover from common respiratory illnesses like bronchitis or pneumonia when added to regular care. It may be a good option for you if you're 65 or older and have just been diagnosed with a respiratory infection.
Bloomsburg, PennsylvaniaAges 65–100 - NCT06480578RecruitingPhase 2
Sensor pill study to improve HIV medication adherence
This study tests a special pill that has a sensor inside, which sends information to your doctor or care team to help you remember to take your HIV medication. It is for people who sometimes miss doses and want extra support.
Los Angeles, CaliforniaAges 18 years+ - NCT06483854Recruiting
HIV testing from traditional healers in rural South Africa
This trial compares HIV counseling and testing provided by traditional healers to the standard care approach. If you are over 18 and would like to receive an HIV test from a traditional healer, you may be able to join.
Agincourt, MPAges 18 years+ - NCT06482138Recruiting
Why smell may change after COVID-19: a nose tissue study
This study looks at why some people lose or change their sense of smell after COVID-19. Researchers will take a tiny sample of tissue from your nose to study the cells and molecules involved.
Brussels, Brussels CapitalAges 18–70 - NCT06478160Recruiting
Closed blood-sampling system for ICU patients
This trial is testing a new way to draw blood from an arterial line that may reduce infection and blood loss. It is for adults in the ICU who need an arterial line for several days.
Madrid, MadridAges 18 years+ - NCT06485154RecruitingPhase 4
Finding the best HIV treatment after PrEP shot failure
This trial is for people who got exposed to HIV despite taking the long-acting PrEP shot (cabotegravir). It tests different pill-based HIV treatment plans to find the best option for them.
Johannesburg, GautengAges 15 years+ - NCT06484335RecruitingPhase 1
HIV vaccine study with treatment pause for Thai adults
This study tests whether adding an experimental vaccine can help your immune system control HIV during a temporary break from your antiretroviral therapy (ART). If you have been on ART since shortly after infection with a suppressed viral load, this trial could help you understand if a 'functional cure' is possible.
Pathum Wan, BangkokAges 18–60
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.