This is a randomized, double blind, sham-controlled trial designed to evaluate the efficacy of early EUS-guided celiac plexus neurolysis (EUS-CPN). "Early" refers to the fact that, in contrast to previous CPN trials, we targeted patients with inoperable, painful pancreatic cancer in whom pain was mild and who were taking little or no narcotics. Our a priori hypotheses were that, compared to conventional management with narcotics alone, early neurolysis: 1) will better control pain related to inoperable pancreatic cancer, 2) will prevent the escalating use of narcotics associated with disease progression, 3) will improve quality of life, and 4) will improve survival. The aim our study is to test these 4 hypotheses.