Chronic bronchitis
MONDO:0005607A type of chronic obstructive pulmonary disease characterized by chronic inflammation in the bronchial tree that results in edema, mucus production, obstruction, and reduced airflow to and from the lung alveoli. The most common cause is tobacco smoking. Signs and symptoms include coughing with excessive mucus production, and shortness of breath.
Also known as: bronchitis, chronic
65 clinical trials for this condition and its sub-types.
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Immune check could stop virus after lung transplants
Disease control Recruiting nowThis study looks at whether monitoring the immune response to the cytomegalovirus (CMV) can help prevent CMV disease in people who receive a lung transplant. About 100 adult lung transplant patients who have had CMV in the past will be followed. The goal is to see if tracking CMV…
Sponsor: University of Miami • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
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Boston study tests free AC and power subsidies to protect seniors from heat
Disease control Recruiting nowThis study is testing whether giving air conditioners and a $100 electricity subsidy to older adults in Boston neighborhoods can reduce heat stress, heat strain, and related health problems. One hundred participants aged 55-95 who don't have AC will be randomly assigned to receiv…
Phase: NA • Sponsor: Harvard School of Public Health (HSPH) • Aim: Disease control
Last updated Jun 27, 2026 08:12 UTC
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New PET tracer aims to reveal hidden inflammation in cancer patients
Diagnosis Recruiting nowThis early-stage study tests a new imaging agent called 18F-4FN for PET scans to safely detect inflammation in the body. It involves 55 adults with cancer who are on immunotherapy or have suspected inflammation. The goal is to see if this agent can highlight areas of inflammation…
Phase: PHASE1 • Sponsor: M.D. Anderson Cancer Center • Aim: Diagnosis
Last updated Jun 27, 2026 12:36 UTC
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Breathing in xenon: a new way to see lung problems?
Diagnosis Recruiting nowThis study is testing a special MRI scan that uses xenon gas to take detailed pictures of lung function. It includes 260 healthy volunteers and people with lung diseases like asthma, COPD, and cystic fibrosis. The goal is to see if this method can better detect and measure lung p…
Phase: PHASE1 • Sponsor: Mario Castro, MD, MPH • Aim: Diagnosis
Last updated Jun 27, 2026 12:29 UTC
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COPD patients may breathe easier by switching to heated tobacco
Symptom relief Recruiting nowThis study looks at whether people with COPD and chronic bronchitis who switch from regular cigarettes to a tobacco heating system feel better and breathe easier. About 290 adults aged 40 and older who have smoked for at least 10 years will take part. Researchers will measure cou…
Phase: NA • Sponsor: Philip Morris Products S.A. • Aim: Symptom relief
Last updated Jun 27, 2026 14:00 UTC
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Could racket sports boost lung rehab? small study tests feasibility
Symptom relief Recruiting nowThis study looks at whether Street Racket, a simple racket sport, can be added to standard pulmonary rehabilitation for people with chronic lung disease. Twelve participants will play Street Racket every two weeks during their rehab program. Researchers will measure how acceptabl…
Phase: NA • Sponsor: Mona Lichtblau • Aim: Symptom relief
Last updated Jun 27, 2026 11:01 UTC
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COPD study tests two education programs to keep patients out of hospital
Symptom relief Recruiting nowThis study compares two COPD self-management education programs: a self-guided booklet and a counselor-led phone program. Researchers want to see which approach better reduces hospitalizations and improves quality of life. 448 adults with COPD who have been hospitalized in the pa…
Phase: NA • Sponsor: Rush University Medical Center • Aim: Symptom relief
Last updated Jun 27, 2026 07:51 UTC
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Electric pulses to the lungs: a new hope for COPD cough?
Symptom relief Recruiting nowThis study tests a device that delivers gentle electric pulses to the airways to reduce chronic bronchitis symptoms in adults with COPD. About 210 participants will either receive the real treatment or a sham procedure. The goal is to see if the treatment improves breathing and q…
Phase: NA • Sponsor: Suzhou Hengruihongyuan Medical Technology Co. LTD • Aim: Symptom relief
Last updated Jun 26, 2026 12:32 UTC
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Can your breath reveal lung disease? researchers launch massive study
Knowledge-focused Recruiting nowThis study is analyzing the exhaled breath of 5,000 people with lung or airway diseases to find unique molecular patterns. The goal is to better identify and distinguish different respiratory conditions and improve disease management. Participants simply provide breath samples, a…
Sponsor: University of Zurich • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:00 UTC
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Partnerships with doctors may improve medical advice, study suggests
Knowledge-focused Recruiting nowThis study looks at how the relationship between doctors and patients affects the way medical decisions are made. Researchers will interview 300 patients and healthcare workers in Singapore to understand what makes a good partnership. The goal is to learn how these partnerships c…
Sponsor: Singapore General Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:34 UTC
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Can a simple breath test diagnose diseases in children?
Knowledge-focused Recruiting nowThis study aims to see if analyzing the chemicals in a child's breath can help diagnose and monitor diseases like asthma, neurological disorders, and type 1 diabetes. Researchers will collect breath samples from up to 3,600 children and teens to find patterns linked to these cond…
Sponsor: University Children's Hospital Basel • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:30 UTC
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Lung image & tissue bank aims to speed up new diagnostic tools
Knowledge-focused Recruiting nowThis study creates a registry and biorepository of lung images and biological samples from 100 people with pulmonary disease. Researchers will use this information to better understand imaging biomarkers and develop new analysis methods for CT and MRI scans. Participants must alr…
Sponsor: University of Kansas Medical Center • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:29 UTC
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Scientists probe sticky lung mucus to understand breathing disease
Knowledge-focused Recruiting nowThis study looks at the physical properties of lung mucus in people with obstructive pulmonary disease. Researchers will collect sputum samples before and after chest physiotherapy or exercise to see how these treatments change the mucus. The goal is to better understand the dise…
Phase: NA • Sponsor: Cliniques universitaires Saint-Luc- Université Catholique de Louvain • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:25 UTC
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10-Year lung study aims to create a 'Digital Twin' of your lungs
Knowledge-focused Recruiting nowThis study will follow 1000 adults for up to 10 years, using a special type of CT scan (photon-counting) to look for lung nodules, tumors, and other lung conditions. Researchers will also use artificial intelligence to create a virtual copy of each person's lungs, called a 'digit…
Sponsor: Casa di Cura Dott. Pederzoli • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:05 UTC
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New study probes breathing muscle weakness in kids
Knowledge-focused Recruiting nowThis study measures how hard children with conditions like neuromuscular disease, scoliosis, or heart problems work to breathe. Researchers use a thin tube placed through the nose into the esophagus to measure breathing muscle strength and effort. The goal is to better understand…
Phase: NA • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:03 UTC
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Scientists track prednisolone levels to improve dosing for inflammatory conditions
Knowledge-focused Recruiting nowThis pilot study is measuring prednisolone levels in 120 people with inflammatory diseases like thyroid eye disease, vasculitis, COPD, asthma, and others. Participants take high-dose prednisolone as part of their routine care, and researchers take timed blood samples to see how t…
Sponsor: Imperial College London • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
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Frozen lung probe could improve biopsy and ablation
Knowledge-focused Recruiting nowThis study uses donated human lungs to develop a standard method for a new freezing catheter that can take tissue samples (biopsy) and destroy abnormal tissue (ablation). Researchers will test different freezing times and temperatures to find the safest and most effective techniq…
Phase: NA • Sponsor: Centre hospitalier de l'Université de Montréal (CHUM) • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:02 UTC
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When to boost? new trial seeks best COVID-19 shot timing for vulnerable patients
Knowledge-focused Recruiting nowThis study looks at 320 adults who are about to start strong immune-suppressing therapy and have already had at least two COVID-19 shots. Researchers want to find out if giving a COVID-19 booster right before starting therapy or waiting six months provides better protection. Part…
Phase: PHASE3 • Sponsor: Kirby Institute • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:08 UTC
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New Bio-Bank aims to unlock secrets of lung disease and transplants
Knowledge-focused Recruiting nowThis study is building a bio-bank of blood samples from people who have had a lung transplant. Researchers will use these samples to study advanced lung diseases and improve transplant care. The goal is to better understand how infections and other factors affect patient outcomes…
Sponsor: Baylor Research Institute • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:00 UTC
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Blood test could spot lung transplant rejection early
Knowledge-focused Recruiting nowThis study is looking for better ways to predict if a lung transplant will be rejected. Researchers will collect blood samples from 244 lung transplant recipients over time and analyze them using advanced techniques. The goal is to create a model that can identify early signs of …
Sponsor: Chang Chen • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:59 UTC
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Scientists hunt for COPD genes in young patients
Knowledge-focused Recruiting nowThis study aims to find the genes that make some people develop severe COPD at a young age, even if they smoke. Researchers will collect DNA and health information from 2,000 participants with early-onset COPD. The goal is to understand why some people are more prone to this lung…
Sponsor: Brigham and Women's Hospital • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:55 UTC
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Scientists build genetic database to crack Emphysema's secrets
Knowledge-focused Recruiting nowThis study is creating a registry of people with emphysema to collect DNA, lung function tests, and medical information. Researchers hope to use this data to better understand the disease and develop new therapies. The registry will also help identify volunteers for future resear…
Sponsor: University of Pittsburgh • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:51 UTC
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New ultrasound technique could help prevent lung injury in ventilator patients
Knowledge-focused Recruiting nowThis pilot study is testing a new ultrasound tool that measures how much the lungs stretch (strain) in patients on breathing machines in the ICU. The goal is to collect initial data from 10 adults with lung disease to see if this technique can help doctors better monitor and prev…
Sponsor: Centre hospitalier de l'Université de Montréal (CHUM) • Aim: Knowledge-focused
Last updated Jun 26, 2026 18:04 UTC