Infectious disease
Infections clinical trials
Bacterial, viral, and other infections — from common illnesses to emerging threats. We’re tracking 3,961 recruiting studies in this area right now.
By phase
- Not applicable2,540
- Phase 2357
- Phase 4303
- Phase 1287
- Phase 3283
- Phase 1/Phase 2132
- 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
- M.D. Anderson Cancer Center21
Where studies are running
- California234
- Maryland142
- Alabama92
- New York73
- Florida72
- Texas62
- Massachusetts55
- Arizona48
- Pennsylvania43
- Illinois41
Recruiting studies3,961 total
- NCT06834113Recruiting
Testing pain relief from HIV shot location and virtual reality
This study looks at whether changing where you get your HIV injection (in the buttock area) and using a virtual reality headset during the shot can reduce pain. It is for people whose HIV is well-controlled with the injectable medicines cabotegravir and rilpivirine.
Orléans, LoiretAges 18 years+ - NCT06825819Recruiting
Dysbiosis and long COVID study
This study looks at gut bacteria changes in people with and without long COVID symptoms after a confirmed COVID infection. It may help find why some people have long-term health problems.
Chicago, IllinoisAges 18–80 - NCT06833957Recruiting
Preparing for a maternal GBS vaccine in Africa
This study is preparing for future trials of a vaccine for Group B Strep (GBS) in pregnant women. It includes different parts: watching pregnant women and their babies, surveying GBS infections, and understanding how communities feel about vaccines.
Mariakani, CoastAges Any age - NCT06332040RecruitingPhase 4
Gentamicin in the bladder to prevent catheter infections
This trial tests whether giving a low dose of the antibiotic gentamicin directly into the bladder through the catheter can prevent infections in people who are critically ill and have a Foley catheter. If you qualify, you might receive this treatment to help reduce the risk of a catheter-related urinary tract infection.
Phoenix, ArizonaAges 18 years+ - NCT05455034RecruitingPhase 1/Phase 2
Blood and lung-sample test to guide treatment for lung inflammation
This Phase 1/2 study uses detailed “single-cell” testing (from lung samples) to better understand why lung inflammation happens after cancer radiation or immunotherapy. It aims to help choose the right treatment approach for people with radiation pneumonitis or immune checkpoint inhibitor pneumonitis.
Chongqing, Chongqing MunicipalityAges 18–80 - NCT05332067RecruitingPhase 2
Omalizumab to prevent future asthma flare-ups before they start
This trial studies whether starting omalizumab before asthma flare-ups begin can reduce how often children get worsening asthma that needs strong steroid medicine. It is for children with persistent asthma who have signs of allergic/asthma triggers and recent flare-up history.
Washington D.C., District of ColumbiaAges 6–17 - NCT06819176RecruitingPhase 1
Testing a new drug to shrink hidden HIV in people with suppressed virus
This study tests whether adding a new anti-HIV drug called lenacapavir to your regular HIV treatment can shrink the hidden reservoir of virus in your body. This could be a step toward a cure.
Bethesda, MarylandAges 18–75 - NCT06821594Enrolling by invitationEarly Phase 1
Heart medicines injected into warts for treatment
This trial tests whether injecting a combination of two heart medicines (furosemide and digoxin) directly into warts can help remove them. It may be an option for people with multiple warts who haven't had recent treatment.
Karachi, SindhAges 18–60 - NCT06821126RecruitingPhase 1/Phase 2
Nasal spray COVID-19 vaccine booster study for healthy adults
This study tests a new nasal spray COVID-19 vaccine to see how it compares to an mRNA booster shot. It is for healthy adults who have already had at least 3 doses of an mRNA COVID-19 vaccine (or 2 doses plus a confirmed COVID infection) and are looking for a needle-free booster option.
DijonAges 18–60 - NCT06822426RecruitingPhase 3
Catheter lock solution to prevent bloodstream infections in patients on IV nutrition
This study tests a catheter lock solution called DefenCath (taurolidine and heparin) against a standard heparin lock to see if it reduces central line bloodstream infections in people receiving IV nutrition (total parenteral nutrition) for more than 3 months.
Los Angeles, CaliforniaAges 12 years+ - NCT06824519RecruitingPhase 1/Phase 2
Quadrivalent flu vaccine trial for adults
This trial tests a new quadrivalent influenza (flu) vaccine in adults 18 and older. It aims to see if the vaccine is safe and helps protect against the flu. You may be able to join if you are generally healthy and have not had the flu or a flu shot recently.
Shijiazhuang, HebeiAges 18 years+ - NCT06824350Recruiting
Chlorine in water to prevent newborn infections
This trial tests whether adding a small amount of chlorine to the drinking water at public health facilities can reduce infections (including those resistant to antibiotics) in newborns. You and your baby may be eligible if you deliver at a participating facility that does not already chlorinate its water.
Berkeley, CaliforniaAges Any age - NCT06823596Recruiting
HIV treatment study switching to efavirenz
This study tests whether switching to a medication called efavirenz can help control HIV. It is for people who have been on stable HIV treatment for years but still have low levels of virus in their blood.
Toronto, OntarioAges 18–89 - NCT06822478RecruitingPhase 3
Arnica tincture for treating cutaneous leishmaniasis
This trial tests whether arnica tincture (a plant extract) can treat cutaneous leishmaniasis, an infection causing skin ulcers. It compares arnica to a standard injected treatment and looks at how well each works and how safe they are.
Medellín, AntioquiaAges 12 years+ - NCT06824649RecruitingPhase 4
Comparing biologics for chronic sinusitis with nasal polyps
This trial compares three different biologic medications (injectable drugs) to see which one works best for people with chronic sinusitis and nasal polyps. If you have moderate to severe symptoms and are considering biologic therapy, this study might help find the best option for you.
Gainesville, FloridaAges 18 years+ - NCT06821100RecruitingPhase 1
Thymalfasin to Boost COVID-19 Vaccine Response in Older Adults
This trial tests whether a drug called thymalfasin (thymosin alpha 1) can help older adults (65+) get a stronger immune response from their COVID-19 booster shot. It may be especially helpful for those whose immune systems have weakened with age.
Houston, TexasAges 65–100 - NCT06822907RecruitingPhase 4
Testing pneumococcal vaccine during a fever in adults
This trial tests if a pneumococcal vaccine (PCV-20) is safe and works well when given to adults during a fever. It may help protect people with certain health conditions from serious pneumococcal infections.
Saint-Etienne, FranceAges 18–85 - NCT06821282Recruiting
Tracking antibiotic resistance in the DRC
This study looks for antibiotic-resistant bacteria in the blood of patients with a suspected bloodstream infection. The goal is to understand which antibiotics still work, helping doctors choose the right treatment.
Kinshasa, Kinshasa CityAges 6 months+ - NCT06819462Recruiting
Inhaled colistin to prevent ventilator pneumonia in brain injury patients
This trial tests whether giving an inhaled antibiotic called colistin can prevent pneumonia in patients with brain injuries who are on ventilators. If effective, it could reduce lung infections and improve recovery.
Nanjing, JiangsuAges 18–80 - NCT06815250Recruiting
Boosting maternal vaccine knowledge and uptake: The InTroDuce-Programme
This trial tests a programme to help pregnant women learn about and get flu and Tdap vaccines. It aims to increase vaccination rates and improve health for mothers and babies.
Bandar Baru Bangi, SelangorAges 18 years+ - NCT06821113Recruiting
COVID-19 prevention program for Latino day laborers
This trial tests a program adapted for Latino day laborers to help prevent COVID-19. It aims to see if the program works for people who look for work at street corners.
Houston, TexasAges 18 years+ - NCT06825117Enrolling by invitation
Probiotics after kidney transplant
This trial tests whether taking a probiotic supplement helps people recovering from a kidney transplant. If you are between 18 and 75 years old and had a smooth recovery in the first month after surgery, you may be able to join.
UdineAges 18–75 - NCT06817421RecruitingPhase 4
Pneumococcal vaccine for children with severe malnutrition
This study tests whether giving the pneumococcal vaccine during hospitalization for severe malnutrition can help prevent infections. It may help protect your child from serious illness.
DiliAges 6 months–4.9 years - NCT06822465Recruiting
Gut bacteria study in critically ill patients
This study looks at the bacteria in the gut of people who are very ill in the hospital. It may help doctors understand how gut health affects recovery.
Hyde Park, IllinoisAges 18–85
Common questions
- How many infections clinical trials are recruiting?
- Clin2 is tracking 3,961 recruiting infectious disease studies from the U.S. registry right now, out of 6,600 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.