Jazz Pharma (JAZZ) Begins Zepzelca Confirmatory Study for SCLC Posted byZacks Equity Research December 14, 2021 Leave a comment on Jazz Pharma (JAZZ) Begins Zepzelca Confirmatory Study for SCLC Jazz Pharmaceuticals (JAZZ) and partner PharmaMar initiate a late-stage study to evaluate Zepzelca in metastatic SCLC. Data from the study will support full approval of the drug for the indication.