Patients and caregivers provide valuable insight about PH that scientists and physicians do not have. Therefore, they have a crucial role to play as key partners in research. On this page, learn more about non-clinical research studies currently seeking participants, as well as results and recommendations from previous research projects involving the PH community. For more information about clinical trial studies, please visit the Clinical Trials in Canada. Learn more about current studies by scrolling down or by clicking on "Current Studies" below. Learn more about past studies by scrolling down or by clicking on "Past Studies" below.