Dyspnea Clinical Trials

Prospective cohort study to evaluate the utility of quantitative CT analysis to assess ventilation and perfusion defects in patients with Post-acute Sequelae of SARS-CoV-2 (PASC) and functional limitations Read Less

The investigators will study whether the drug tadalafil improves shortness of breath in 126 Veterans with Chronic Obstructive Pulmonary Disease (COPD) and high blood pressure in the lungs. The investigators will also assess whether tadalafil improves quality of life, home daily physical activity, exercise endurance, the frequency of acute flares of COPD, blood pressure in the lungs, and lung function. Veterans who enroll in the trial will be allocated by chance to either active tadalafil or an inactive identical capsule (placebo). Neither the Veteran nor the investigator will know whether the Veteran is taking tadalafil or placebo. Veterans will be followed closely in clinic or by telephone at 1, 2, 3, 4, 5, and 6 months, with attention to side effects and safety. At 1,3, and 6 months the investigators will repeat the questionnaires and testing of blood pressures in the lung and lung function. The investigators anticipate that the results of this study will determine whether tadalafil improves shortness of breath when added to usual medications for COPD. Read Less

Investigators are studying how a device called The Lung Master device can help people breathe better. The investigational device increases the amount of air our lungs can hold, which is important for overall lung health. The Lung Master is not approved by the FDA. The study has two visits approximately one month apart. In the first visit participants will take a spirometry test, particularly forced vital capacity (FVC), to measure volume change in the lungs. Participants will take the investigational device home to use daily, either in the morning or evening. Use will be recorded in a diary. After one month, participants will return for another spirometry test. Each study visit will take about one to two hours to complete. Read Less

The goal of this NIH-sponsored study is to characterize three biomarkers derived from 129Xe gas exchange MRI and to understand how they change in response to interventions. Read Less

To learn about the effect of Structured Personalized Oxygen and Supportive Therapies for Dyspnea in Oncology (SPOT-ON) treatment on the severity of shortness of breath in patients with cancer. Read Less

This study will determine if airway resistance to airflow and pressure, measured by Oscillometry, is associated with abnormal findings on Cardiopulmonary Exercise Testing in subjects who are experiencing shortness of breath. Read Less

This is a parallel design, randomized, controlled pilot trial comparing a controlled breath intervention (REST) to usual care for reducing stress in individuals with COPD. Read Less