Priorities for pulmonary hypertension research: A James Lind Alliance priority setting partnership.

Pulmonary hypertension (PH) is a rare condition associated with significant morbidity and mortality. The priorities for future research in PH according to patients, caregivers, and clinicians have not been established. We performed a James Lind Alliance priority setting partnership in Canada. An initial survey of 249 respondents (76% patients and/or caregivers, 12.5% clinicians) generated 1588 questions, which were combined into 187 summary questions. An evidence check identified 352 systematic reviews and guidelines which were mapped to the summary questions, which determined that 157 summary questions were unanswered by existing research. An interim prioritisation survey (240 respondents, 66% patients and/or caregivers, 18% clinicians) asked respondents to choose which of the 157 summary questions were among the 30-40 most important. In a final workshop patients, caregivers, and clinicians discussed and ranked the top 25 questions from the interim survey to identify the Top 10 PH research priorities. These results will inform researchers and funding bodies about patient, caregiver, and clinician priorities for future research on PH.