Two groups of adult patients with advanced (unresectable or metastatic) were included in this study:~Well-differentiated (G1/2), non-functional, neuroendocrine tumor of GI, pancreatic or thoracic (lung/thymus) origin who have progressed on prior treatment~Poorly-differentiated GEP-NEC who have progressed on or after one prior chemotherapy regimen.~The study was comprised of the following periods: screening, treatment, end of treatment (EOT), safety follow-up (30-Days, 60-Days, 90-Days, 120-Days, and 150-Days after the last dose of PDR001) and post-treatment efficacy follow-up. Subjects were treated with PDR001 as an infusion at a flat dose of 400 mg every 4 weeks (Q4W). Subjects were to continue study treatment beyond disease progression by RECIST 1.1 until disease progression as per irRECIST, as per BIRC, unacceptable toxicity, start of new antineoplastic therapy, withdrawal of consent, physician's decision, lost to follow-up, death, or study termination by the Sponsor.
This study aimed to investigate the efficacy and safety of PDR001 in patients with advanced or metastatic, well-differentiated, non-functional neuroendocrine tumors of pancreatic, gastrointestinal (GI), or thoracic origin or poorly-differentiated gastroenteropancreatic neuroendocrine carcinoma (GEP-NEC) that progressed on prior treatment.