Respiratory tract infectious disorder

This Phase 3 trial tests updated versions of the BNT162b2 COVID-19 vaccine in adults and children aged 5 and older. Participants include those aged 5 to 64 with medical conditions that raise their risk of severe COVID-19, as well as everyone aged 65 and older. The study compares …

This study tests a new mRNA vaccine called IN006 to see if it is safe and helps the body fight RSV, a virus that can cause serious breathing problems. About 200 healthy adults, both younger (18-59) and older (60-79), will receive one or two shots of the vaccine or a placebo. Rese…

This study looks at whether a quick lab test (multiplex PCR) can help doctors pick the right antibiotics faster for ICU patients with ventilator-associated pneumonia. About 170 adults on ventilators will be randomly assigned to get either the rapid test or standard testing. The g…

This study tests a special gelled water (GEL-AID) in nursing home residents aged 65 and older. The goal is to see if it helps them drink more fluids, preventing dehydration, urinary infections, and respiratory infections. One group gets the usual hydration plan, while the other g…

Researchers swab the noses of children scheduled for elective surgery under general anesthesia to check for respiratory viruses. They want to learn how many children carry viruses without showing symptoms and whether those children have more breathing problems during or after sur…

This study tests whether an AI-powered digital stethoscope can help health workers more accurately diagnose pneumonia in children aged 2 months to 5 years. 350 children with cough or breathing difficulty will be randomly assigned to standard care or care plus the AI stethoscope. …

This study investigates whether a real-time breath analysis device can quickly and non-invasively diagnose lower respiratory tract infections. Researchers will collect breath samples from 450 patients with suspected infections or chronic airway colonization and analyze volatile o…

This study tests whether analyzing chemicals in a person's breath can quickly identify serious respiratory infections like COVID-19, flu, and Legionella in hospitalized patients. Researchers will collect breath samples from 777 adults using a simple bag, then analyze them in a la…

This study aims to see if analyzing chemicals in a person's breath can rapidly detect respiratory infections like COVID-19 or the flu. Researchers will collect breath samples from 1,665 adults with symptoms and healthy volunteers. If successful, this non-invasive test could offer…

This study tests whether a rapid PCR test done right in the clinic can help doctors diagnose and treat acute respiratory infections faster. Over 16,000 adults at risk of severe illness will take part. The goal is to see if this approach lowers rates of respiratory failure and hos…

Researchers are testing whether a single dose of the antiviral drug baloxavir marboxil can stop influenza from spreading among people who live with someone who has the flu. The trial enrolls households in China where one person has confirmed influenza and up to five other members…

This trial tests whether a daily supplement called Immune X can help prevent common colds in healthy adults who often get upper respiratory infections. Over 16 weeks during winter, participants take either Immune X or a placebo and track any cold symptoms. The study compares how …

This trial tests a handheld light device (RD-X19) to see if using it for 5 minutes every other day can prevent upper respiratory infections like COVID-19 and flu. It involves 130 military personnel and their families at a single base. Half will get the real device, half a sham de…

This trial tests whether giving children a probiotic called Saccharomyces boulardii alongside a common antibiotic can prevent diarrhea, a frequent side effect. Children aged 6 months to 5 years with upper respiratory infections will receive either the antibiotic alone or the anti…

This study tests whether a daily supplement called AHCC, made from shiitake mushrooms, can reduce the number of respiratory infections (like colds) in children aged 2 to 4. Sixty children in daycare will receive either AHCC or a placebo for three months. Researchers will track fe…

This study tests whether a special combination of supplements (sodium nucleinate, magnesium, vitamin B6, and high-dose vitamin D) can prevent respiratory infections like colds and flu better than standard multivitamins. Two hundred healthy male military recruits in Kazakhstan wil…

This study tests two nasal protective devices (Noseguard and Noseguard Night) in 2000 adults to see if they can reduce the risk of catching respiratory infections like COVID-19 and influenza. Participants will use the devices as directed for 8 weeks, and researchers will track in…

This study tests a new herbal blend designed to shorten the duration and reduce the severity of common cold symptoms. Researchers will enroll 300 healthy adults in Australia who get frequent colds. Participants will take the herbal product or a placebo whenever they feel a cold c…

This study looks at how well and how safely SIROPSEDAL syrup works for acute cough caused by colds or upper respiratory infections. About 124 children and adults will take the syrup as prescribed by their doctor and report their cough severity over one week. The main goal is to s…

This study looks at whether a fast, bedside test (SPOTFIRE) can help doctors better treat children with respiratory infections in the emergency department. About 720 children aged 2 months to 18 years will be randomly assigned to either get the rapid test or standard care. The go…

This study looks at how well a saltwater (saline) nasal spray works and how safe it is for infants and toddlers aged 3 months to 4 years with stuffy noses from colds, flu, or allergies. About 83 children will use the spray for up to 14 days, and parents will report symptom change…

Researchers are following about 1,200 children in Zhejiang Province, China, from birth through age 7 to understand how the immune system develops and why some children get more respiratory infections or asthma. The study includes healthy children, children with a history of serio…

This study looks at whether changing climate patterns are shifting when winter respiratory viruses, like the flu, peak each year. Researchers will review medical records of 5,000 patients who tested positive for these viruses and compare infection rates with weather data from the…

This study aims to better understand tuberculosis (TB) across its entire spectrum—from early, symptom-free infection to active disease and after treatment. Researchers will recruit TB patients and their close contacts to analyze immune responses and identify biomarkers that could…

This study examines data from up to 70,000 patients hospitalized with respiratory tract infections in Dutch hospitals between 2018 and 2026. Researchers will analyze how long patients stay, how many need intensive care, and the overall costs. The goal is to help improve hospital …

This study looks at 200 people with pneumonia to find out how many actually have an infection caused by Chlamydia pneumoniae, a type of bacteria. Researchers will use PCR tests to check for the germ and compare results with standard care. The goal is to see if this infection is o…

This study tests whether adding special air quality sensors and software to hospital ventilation systems can lower the number of respiratory infections among healthcare workers. About 850 Mayo Clinic staff will report symptoms and provide self-swabs when sick. The goal is to see …

This study looks at vitamin D levels in 63 critically ill children (ages 1 month to 12 years) admitted to the ICU with severe breathing infections. Researchers will measure vitamin D in the first 24 hours and compare it to how severe the infection is and the risk of death. The go…

This study will observe 65 children, aged 1 to 24 months, hospitalized with bronchiolitis at Assiut University Hospital. Researchers will collect information on family, social, and medical factors to identify what makes the illness more severe. The goal is to help doctors predict…

This study looks at how different features of an AI system affect the way primary care doctors diagnose and treat respiratory infections. About 3,000 doctors in China will use a web-based tool with various AI features, such as automated data entry or stepwise medication suggestio…

This study follows 270 preterm babies (born before 32 weeks) from birth to age 3. Researchers will regularly swab their noses to analyze the bacteria and other microbes living there. The goal is to see if the nose microbiome can predict which babies will develop bronchopulmonary …

This study will examine gut bacteria, immune markers, and nutrient levels in 120 children with different respiratory health conditions, including pneumonia and recurrent infections, compared to healthy kids. By analyzing stool samples and health data, researchers hope to understa…

This study will observe up to 4,000 children under 5 years old who test positive for RSV and visit emergency departments in Turkey. Researchers will track how many children need to be admitted to the hospital or intensive care, and what treatments they receive. The goal is to bet…

This observational study will track over 2,500 adults hospitalized with severe community-acquired pneumonia across dozens of countries. Researchers will collect data from medical records to see how closely hospitals follow international treatment guidelines and what factors lead …

This study will observe 300 children and young adults (ages 0-20) with respiratory tract infections to see if chest ultrasound can predict their outcomes, such as need for hospitalization or ICU care. Researchers will use an ultrasound score and combine it with clinical data to s…