COHORT STUDY

This study looks at whether biologic drugs can safely reduce flare-ups in people with allergic bronchopulmonary aspergillosis (ABPA), a lung condition caused by an allergic reaction to a common mold. About 50 adults with severe asthma and a history of asthma attacks will receive …

This study looks at whether a common, minimally invasive treatment called radiofrequency ablation is safe and helpful for people aged 80 and older with severe chronic venous insufficiency (leg vein disease causing swelling, skin changes, or ulcers). Researchers will treat 50 pati…

This study follows 1,088 newborns in Colombia and Panama until age 5 to learn what causes respiratory infections and why some children get sicker than others. Families report symptoms twice a week and provide samples during illnesses. No treatments are tested—the goal is to gathe…

This study follows 425 adults with recent psoriatic arthritis (PsA) for up to 10 years to see how many develop joint damage and what factors predict it. Researchers will use X-rays and other data to identify early signs of aggressive disease. The goal is to help doctors decide wh…

This study is following about 1 million adults in northwest China to understand how different diseases develop over time. Participants are enrolled through routine health checkups, and researchers collect data on their health, lifestyle, and medical history. The goal is to gather…