Chronic bronchitis

This phase 2 trial tested whether infusions of PROCHYMAL, a stem cell product, are safe and can help people with moderate to severe COPD. 62 participants received either stem cells or a placebo. The main goal was to check for side effects, and researchers also looked at changes i…

This study looked at how well the antibiotic Klacid SR works for adults with respiratory infections like bronchitis and mild pneumonia, especially in those who had taken it before. Over 3,000 participants were treated in regular doctor visits, and doctors checked if symptoms impr…

This study investigates whether patterns in speech and breathing can indicate the presence of obstructive respiratory diseases like COPD. Researchers will collect short voice recordings from patients with and without lung disease and compare them to standard lung function tests. …

This study tested two medications, roflumilast and azithromycin, in over 1,000 people with severe COPD and chronic bronchitis. The goal was to see which drug better prevents hospitalizations or death. Participants were current or former smokers aged 40 or older who had been hospi…

This trial tests whether a continuous infusion of the local anesthetic ropivacaine, delivered through small catheters placed near the breastbone, can improve recovery after cardiac surgery. The study focuses on patients at higher risk of respiratory complications, such as older a…

This study tests whether a device called oscillatory positive expiratory pressure (OPEP) therapy can reduce cough symptoms and improve lung mechanics in people with COPD. Participants use the device at home twice daily for four weeks. Researchers compare lung function and symptom…

This study tested how well the over-the-counter medication Mucinex works for people with stable chronic bronchitis when used over 12 weeks. 82 adults aged 40 and older took part, tracking their symptoms, satisfaction, and any side effects. The goal was to see if long-term use hel…

This study tested whether a supplement called GCWB1001 can help adults with mild breathing symptoms like cough, phlegm, and chest tightness. 120 people took either the supplement or a placebo for 12 weeks. The goal was to see if symptoms improved and if it was safe.

This study looked at whether people with chronic lung disease who experience drops in oxygen during exercise can walk just as far without extra oxygen as with it. Forty patients completed a 6-minute walk test twice: once breathing normal air and once with low-flow oxygen. The goa…

This phase 3 trial tested whether the drug N-acetylcysteine (NAC) can thin mucus and make it easier to cough up in adults with respiratory infections like bronchitis or bronchiectasis. About 333 hospitalized patients in China received either NAC, another expectorant (ambroxol), o…

This study investigates how the immune system responds to COVID-19 in people with chronic lung conditions like asthma, COPD, or cystic fibrosis, compared to those without lung disease. Researchers collect blood, sputum, and nasal samples to measure immune signals and gene activit…

This study tested a special MRI technique called Ultra Short Echo Time (UTE) to see if it can take clearer pictures of the lungs than traditional MRI. Researchers collected images and health information from people with and without lung disease to help doctors better understand l…