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
- NCT06451913RecruitingPhase 4
Probiotic for gut health during Lyme disease antibiotics
This trial tests if a probiotic (Saccharomyces boulardii) can help maintain healthy gut bacteria while you take antibiotics for the early skin rash of Lyme disease (erythema migrans). You'll take amoxicillin for 14 days, plus either the probiotic or a placebo.
LjubljanaAges 18 years+ - NCT05228691Recruiting
Study Long COVID symptoms in the Canary Islands
This study looks at how common long-term COVID symptoms are in people across the Canary Islands. It may help researchers better understand who is affected and what symptoms last, which can support future care.
Las Palmas de Gran Canaria, Las PalmasAges 18 years+ - NCT06577467Recruiting
Studying leftover virus after covid recovery
This study looks for signs of leftover SARS-CoV-2 virus in people who have fully recovered from COVID-19, including those with ongoing neurological symptoms (like brain fog, fatigue, or nerve pain). It aims to understand why some people have long-lasting symptoms after infection.
Bethesda, MarylandAges 18–110 - NCT06580301RecruitingPhase 1/Phase 2
Study of YK012 for relapsed or refractory B-ALL
This trial tests a new drug, YK012, for people with a certain kind of B-cell acute lymphoblastic leukemia (B-ALL) that has returned or not gotten better after standard therapies. It aims to see if the drug is safe and works against these leukemia cells that have the CD19 marker.
Guangzhou, GuangdongAges 18–75 - NCT06580210Recruiting
Seawater spray with essential oils for stuffy nose
This trial tests a seawater and essential oil spray to clear a stuffy nose caused by a cold, sinus infection or allergies. The spray is meant to help you breathe easier without strong medicines.
BayeuxAges 12 years+ - NCT06577363Recruiting
Maribavir tablets for CMV infection after transplant
This study looks at the medication maribavir for people who have a CMV infection after a transplant that is not getting better with current treatments. The goal is to see how well maribavir works in this situation.
Tokyo, TokyoAges Any age - NCT06583395Enrolling by invitation
Meditation retreat study with fitness tracker
This trial studies people attending a 7-day meditation retreat to see how meditation affects well-being. You will wear a fitness tracker and answer surveys.
Palm Desert, CaliforniaAges 21 years+ - NCT06570889RecruitingPhase 3
Vitamin D in pregnancy to prevent early childhood asthma
This trial tests if taking extra vitamin D during pregnancy can prevent asthma in young children. It is for pregnant women in Denmark who already have certain healthy fat levels in their blood.
Gentofte MunicipalityAges 18–45 - NCT06569862Recruiting
Comparing early vs. late dressing removal after abdominal surgery
This trial compares taking off the surgical dressing one day after surgery versus waiting about 6 days after elective (planned) abdominal surgery to see which approach reduces the risk of surgical site infections.
ParisAges 18 years+ - NCT06576648Recruiting
HIV prevention study for young transgender women in Thailand
This study aims to reduce HIV stigma and improve PrEP use among young transgender women in Thailand. It is testing a new program to help those who are not already taking PrEP consistently.
BangkokAges 18–29 - NCT06574321Enrolling by invitation
Wrap It Up: A school program for healthy relationships
This study tests a school-based program called 'Wrap It Up' that teaches teens about healthy relationships and safer sex. The program is done in groups over two years, and the study compares doing it first versus later.
Scotts Valley, CaliforniaAges 16–19 - NCT06575374RecruitingPhase 2
Letermovir to prevent CMV after CAR T-cell therapy
This trial tests if a drug called letermovir can safely prevent CMV (a common virus) from reactivating after you receive CAR T-cell therapy (Axi-cel). It may help reduce infections and side effects.
Houston, TexasAges 18 years+ - NCT06568484RecruitingPhase 2/Phase 3
Preventing TB with bedaquiline in people exposed to TB
This study tests if bedaquiline can prevent tuberculosis (TB) in people who have been in close contact with someone with active TB, including people living with HIV. If you qualify, you would take the study medicine and be monitored to see if it prevents you from developing TB.
UlaanbaatarAges Any age - NCT06574789RecruitingPhase 2
Personalized ganciclovir dosing for CMV in children with weak immune systems
This study tests whether a personalized dose of the antiviral drug ganciclovir can better treat CMV infection in children with weakened immune systems. It aims to make the treatment more effective and safer for each child.
Sydney, New South WalesAges 1 month–18 years - NCT06576830RecruitingPhase 4
Pain relief study for kids having tonsil surgery
This study tests different ways to manage pain after tonsillectomy in children. The goal is to find better pain relief options.
Durham, North CarolinaAges 3–17 - NCT04577313Recruiting
Study to improve HIV medicine adherence reminders
This study looks at a way to help people take their HIV medicines as prescribed. It focuses on people who are HIV-positive and not currently taking their treatment consistently.
Storrs, ConnecticutAges 18 years+ - NCT04168866Recruiting
Appendicitis abscess treatment: drain surgery or antibiotics
This study compares two ways to treat appendicitis that has formed an abscess or firm inflammatory mass (phlegmon) on a CT scan. It aims to see which approach works better and is safer for people with complicated appendicitis.
New Haven, ConnecticutAges 18 years+ - NCT04332848RecruitingPhase 4
Testing-guided treatment for stubborn stomach H. pylori
This trial studies whether using lab testing to guide antibiotic choice works better than using a standard (empirical) treatment plan for stubborn H. pylori infection. You might benefit if past treatments have not cleared the infection after multiple attempts.
TaipeiAges 20–90 - NCT05157685RecruitingPhase 3
Azithromycin for chronic pus-filled sinus inflammation
This Phase 3 trial tests whether the antibiotic azithromycin can improve chronic sinus problems where there is persistent pus and swelling. It’s for adults who have not improved despite at least two prior antibiotics.
BordeauxAges 18–70 - NCT06555848Recruiting
Testing a new antibiotic bone filler for chronic bone infection surgery
This study is testing whether the CERAMENT G bone filler can help treat chronic bone infections (osteomyelitis) when doctors remove the infected bone in a single surgery. It is for people who have had symptoms for at least six months and need the bone gap filled after surgery.
OxfordAges 18 years+ - NCT06555432Recruiting
Study of maribavir for CMV infection after transplant
This study tests a medication called LIVTENCITY (maribavir) for adults in South Korea who have a CMV infection after a transplant. It is for people whose infection has not improved or has become resistant to other antiviral medicines.
SeoulAges 19 years+ - NCT04474132Recruiting
Testing for current or past Toxoplasmosis infection
This study checks whether a simple “point-of-care” test can detect current or past Toxoplasmosis infection (a common germ). Your results may help evaluate how well the test works and how it could be used in care.
Chicago, IllinoisAges 18–90 - NCT06559618RecruitingPhase 1
Phage therapy for bladder bacteria in spinal cord injury
This trial tests whether a special virus (bacteriophage) that attacks E. coli bacteria can help control bacteria in the bladder without causing an infection. It's for people with spinal cord injury who use a catheter and have E. coli in their urine but no active infection.
St Louis, MissouriAges 18 years+ - NCT06562803Recruiting
Cleaning the blood for liver failure with sepsis
This trial tests if a special blood-filtering method combined with plasma exchange can help people with severe liver failure and sepsis. It aims to reduce inflammation and improve survival.
Guangzhou, GuangdongAges 18–70
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.