Bronchiolitis
MONDO:0002465Inflammation of the bronchioles characterized by swelling of the bronchioles and mucus accumulation. It is usually caused by the respiratory syncytial virus and affects children. Signs and symptoms include coughing, wheezing, and shortness of breath.
Also known as: bronchiolitis, bronchiolitis (disease), wheezy bronchitis, RSV bronchiolitis, viral bronchiolitis
104 clinical trials for this condition and its sub-types, 51 tagged with Bronchiolitis itself.
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Sub-types of Bronchiolitis
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Bronchiolitis obliterans syndrome 42 trials · 44 incl. sub-types
2 sub-types
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Acute bronchiolitis 19 trials
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Mac-Leod-Swyer-James-Syndrome 0 trials
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Toxic bronchiolitis 0 trials
1 sub-type
- Toxic bronchiolitis obliterans 0 trials
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Breathing exercises may cut hospital stays for babies with bronchiolitis
Disease control Recruiting nowThis study tests whether outpatient respiratory physiotherapy can prevent hospitalizations in infants up to 12 months old with mild to moderate acute viral bronchiolitis. The therapy includes gentle airway clearance techniques and, if needed, continuous positive airway pressure (…
Sponsor: University of Sao Paulo • Aim: Disease control
Last updated Sep 18, 2026 00:00 UTC
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New drug vimseltinib aims to tame chronic GVHD in failed treatments
Disease control Recruiting nowThis study tests whether the drug vimseltinib is safe and effective for adults with moderate to severe chronic graft-versus-host disease (cGVHD) who have not improved after at least two prior treatments. About 48 participants will take vimseltinib daily for up to two years. The g…
Phase 2 • Sponsor: Deciphera Pharmaceuticals, LLC • Aim: Disease control
Last updated Jun 27, 2026 08:04 UTC
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Sea spray might soothe sick Babies' breathing
Symptom relief Recruiting nowThis study tests whether a nose spray made from treated seawater can shorten the time babies (1 month to 1 year) have symptoms of bronchiolitis, compared to a standard saltwater spray. About 458 infants with their first, mild-to-moderate bout of bronchiolitis will take part. Pare…
Sponsor: University Hospital, Brest • Aim: Symptom relief
Last updated Jun 27, 2026 08:04 UTC
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Ocean in a bottle? new study tests seawater sprays for sinus relief
Symptom relief Recruiting nowThis study looks at how well seawater nasal sprays work in everyday life for people with nasal and sinus issues like colds, allergies, or after surgery. About 1065 people of all ages, including pregnant women, will use the sprays and report their symptoms. The goal is to see if t…
Sponsor: Laboratoire de la Mer • Aim: Symptom relief
Last updated Jun 27, 2026 08:01 UTC
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Smarter breathing machine may help sick babies breathe easier
Symptom relief Recruiting nowThis study compares two types of non-invasive breathing support for infants under 2 years old with bronchiolitis in the pediatric ICU. One method uses standard ventilation, while the other uses a smarter mode called NAVA that synchronizes with the baby's own breathing. The goal i…
Sponsor: Montefiore Medical Center • Aim: Symptom relief
Last updated Jun 26, 2026 13:23 UTC
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Study aims to cut unnecessary doctor visits for kids with bronchiolitis
Knowledge-focused Recruiting nowThis study looks at two different approaches to help doctors and families avoid unnecessary follow-up visits after a child is hospitalized for bronchiolitis. About 2,700 children will take part to see which method works better at encouraging follow-up only when needed. The goal i…
Sponsor: Seattle Children's Hospital • Aim: Knowledge-focused
Last updated Sep 12, 2026 00:00 UTC
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Scientists to decode why common cold turns severe in kids
Knowledge-focused Recruiting nowThis study aims to find out how often rhinovirus (the virus behind many common colds) causes serious breathing problems that require hospital care in children. Researchers will follow 120 young children at home for 3 years and study 450 hospitalized infants and children, plus 100…
Sponsor: University of Wisconsin, Madison • Aim: Knowledge-focused
Last updated Aug 12, 2026 00:00 UTC
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Baby breathing treatment: gene test may end guesswork for albuterol in bronchiolitis
Knowledge-focused Recruiting nowThis study looks at whether a common asthma drug, albuterol, helps babies with bronchiolitis (a lung infection). Researchers will give 400 children either albuterol or a placebo and check their breathing. They will also collect DNA samples to see if certain genes predict who gets…
Phase 3 • Sponsor: Nemours Children's Clinic • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:30 UTC
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Veterans' lung health under the microscope: new database launches
Knowledge-focused Recruiting nowThis study builds a research database and blood sample bank for veterans and contractors who served in Iraq or Afghanistan and have lung problems. Researchers will collect symptom and exposure information and store blood for future analysis. The goal is to better understand deplo…
Sponsor: National Jewish Health • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:08 UTC
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New study tracks RSV ear infections in kids
Knowledge-focused Recruiting nowThis study looks at how often young children get ear infections from RSV, a common virus. Researchers will track 1900 children under 2 years old to see how many have RSV-related ear infections, with or without bronchiolitis. The goal is to better understand the burden of RSV in t…
Sponsor: Association Clinique Thérapeutique Infantile du val de Marne • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:03 UTC
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Can ultrasound and breathing tests predict which infants will get worse?
Knowledge-focused Recruiting nowThis study follows 200 infants hospitalized with lower respiratory tract infections (like bronchiolitis) to see if lung ultrasound and special breathing tests can help doctors predict how sick a child will get and who might develop asthma later. Researchers will track symptoms, h…
Sponsor: Helse Møre og Romsdal HF • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:01 UTC
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Smart alerts aim to curb antibiotic overuse in Kids' lung infections
Knowledge-focused Recruiting nowThis study tests whether computer-based decision support tools can help doctors reduce unnecessary antibiotic use in children with lower respiratory tract infections like pneumonia, bronchiolitis, and asthma flare-ups. Most of these infections are caused by viruses, not bacteria,…
Sponsor: Vanderbilt University Medical Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:13 UTC
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RSV returns with a vengeance after COVID lockdowns
Knowledge-focused Recruiting nowThis study tracks RSV (respiratory syncytial virus) in UK children under 2, after COVID-19 disrupted normal seasonal patterns. Researchers are monitoring when RSV appears, how severe it is, and whether older children are affected. The goal is to help hospitals prepare for surges …
Sponsor: University Hospitals, Leicester • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:08 UTC