The PK Papyrus Covered Coronary Stent System is a Humanitarian Use device (HUD) approved for the use of acute perforation in native coronary vessels or coronary bypass grafts in vessels 2.4-5.0mm in diameter. In an emergency situation, PK Papyrus may be used emergently outside its' approved indications if a patient has a life threatening condition that needs immediate treatment and no generally acceptable alternative treatment for the condition exists.

This observational, multi-country cohort study examines the long-term safety of Filsuvez in real-world clinical practice. Researchers will collect both primary data and use existing patient registry data to gather information on Filsuvez exposure, skin malignancies, medical history, and other clinical characteristics. The study will include patients with confirmed diagnoses of DEB and JEB, regardless of whether they use Filsuvez, as long as they meet the approved indication. Patients previously exposed to Filsuvez through clinical trials, early access programs, or compassionate use programs may also participate. The study does not require any protocol-mandated visits or procedures, and the frequency of patient visits will follow local standard practice and individual patient needs.