This is a Phase 2, multicenter study in adult participants with an acute COPD exacerbation and type 2 inflammation
This is a multi-center randomized, sham-controlled clinical trial to determine the effectiveness of an air cleaner intervention aimed at improving indoor air quality on reducing COPD exacerbation risk and improving quality of life, functional status, rescue medication use.
This study will seek to enroll immunocompromised patients with Lower Tract parainfluenza infection.
It also contains a sub-study to enroll patients with severe COVID-19.
Researchers are looking for ways to treat pulmonary hypertension (PH) caused by chronic obstructive pulmonary disease (COPD). The goal of the study is to learn if people who take frespaciguat can walk farther in 6 minutes at Week 24 compared to people who take placebo.
The purpose of this study is to compare the efficacy and safety of a real time video telehealth pulmonary rehabilitation intervention with standard of care in patients hospitalized for an exacerbation of chronic obstructive pulmonary disease (COPD) to determine the impact on hospital readmissions and respiratory morbidity, and to investigate the cost-effectiveness of the intervention.
This study will use dual energy x-ray computed tomography (DECT) to evaluate the relationship between heterogeneous perfusion, hypoxia (low oxygen in inspired gas) and induction of pulmonary vascular dilatation to characterize emphysema susceptibility in a normal smoking population. The investigators will correlate DECT measures of perfusion with lung injury measured by single photon emission computed tomography (SPECT). The investigators will study the effect of pulmonary arterial vasodilation to see if it eliminates indices of persistent lung injury in smokers that are susceptible to emphysema