TY - JOUR
T1 - Greater Transplant-Free Survival in Patients Receiving Obeticholic Acid for Primary Biliary Cholangitis in a Clinical Trial Setting Compared to Real-World External Controls
AU - Murillo Perez, C. Fiorella
AU - Fisher, Holly
AU - Hiu, Shaun
AU - Kareithi, Dorcas
AU - Adekunle, Femi
AU - Mayne, Tracy
AU - Malecha, Elizabeth
AU - Ness, Erik
AU - van der Meer, Adriaan J.
AU - Lammers, Willem J.
AU - Trivedi, Palak J.
AU - Battezzati, Pier Maria
AU - Nevens, Frederik
AU - Kowdley, Kris V.
AU - Bruns, Tony
AU - Cazzagon, Nora
AU - Floreani, Annarosa
AU - Mason, Andrew L.
AU - Parés, Albert
AU - Londoño, Maria Carlota
AU - Invernizzi, Pietro
AU - Carbone, Marco
AU - Lleo, Ana
AU - Mayo, Marlyn J.
AU - Dalekos, George N.
AU - Gatselis, Nikolaos K.
AU - Thorburn, Douglas
AU - Verhelst, Xavier
AU - Gulamhusein, Aliya
AU - Janssen, Harry L.A.
AU - Smith, Rachel
AU - Flack, Steve
AU - Mulcahy, Victoria
AU - Trauner, Michael
AU - Bowlus, Christopher L.
AU - Lindor, Keith D.
AU - Corpechot, Christophe
AU - Jones, David
AU - Mells, George
AU - Hirschfield, Gideon M.
AU - Wason, James
AU - Hansen, Bettina E.
AU - Ward, Emma
AU - Banim, Paul
AU - Barclay, Stephen
AU - Rushbrook, Simon
AU - Corbett, Chris
AU - Taylor, Nicola
AU - Gordon, Fiona
AU - Fellows, Helen
AU - GLOBAL PBC Study Group and the members of the UK-PBC Consortium
N1 - Publisher Copyright:
© 2022 The Authors
PY - 2022/12
Y1 - 2022/12
N2 - Background & Aims: The Primary Biliary Cholangitis (PBC) Obeticholic Acid (OCA) International Study of Efficacy (POISE) randomized, double-blind, placebo-controlled trial demonstrated that OCA reduced biomarkers associated with adverse clinical outcomes (ie, alkaline phosphatase, bilirubin, aspartate aminotransferase, and alanine aminotransferase) in patients with PBC. The objective of this study was to evaluate time to first occurrence of liver transplantation or death in patients with OCA in the POISE trial and open-label extension vs comparable non-OCA–treated external controls. Methods: Propensity scores were generated for external control patients meeting POISE eligibility criteria from 2 registry studies (Global PBC and UK-PBC) using an index date selected randomly between the first and last date (inclusive) on which eligibility criteria were met. Cox proportional hazards models weighted by inverse probability of treatment assessed time to death or liver transplantation. Additional analyses (Global PBC only) added hepatic decompensation to the composite end point and assessed efficacy in patients with or without cirrhosis. Results: During the 6-year follow-up, there were 5 deaths or liver transplantations in 209 subjects in the POISE cohort (2.4%), 135 of 1381 patients in the Global PBC control (10.0%), and 281 of 2135 patients in the UK-PBC control (13.2%). The hazard ratios (HRs) for the primary outcome were 0.29 (95% CI, 0.10–0.83) for POISE vs Global PBC and 0.30 (95% CI, 0.12–0.75) for POISE vs UK-PBC. In the Global PBC study, HR was 0.20 (95% CI, 0.03–1.22) for patients with cirrhosis and 0.31 (95% CI, 0.09–1.04) for those without cirrhosis; HR was 0.42 (95% CI, 0.21–0.85) including hepatic decompensation. Conclusions: Patients treated with OCA in a trial setting had significantly greater transplant-free survival than comparable external control patients.
AB - Background & Aims: The Primary Biliary Cholangitis (PBC) Obeticholic Acid (OCA) International Study of Efficacy (POISE) randomized, double-blind, placebo-controlled trial demonstrated that OCA reduced biomarkers associated with adverse clinical outcomes (ie, alkaline phosphatase, bilirubin, aspartate aminotransferase, and alanine aminotransferase) in patients with PBC. The objective of this study was to evaluate time to first occurrence of liver transplantation or death in patients with OCA in the POISE trial and open-label extension vs comparable non-OCA–treated external controls. Methods: Propensity scores were generated for external control patients meeting POISE eligibility criteria from 2 registry studies (Global PBC and UK-PBC) using an index date selected randomly between the first and last date (inclusive) on which eligibility criteria were met. Cox proportional hazards models weighted by inverse probability of treatment assessed time to death or liver transplantation. Additional analyses (Global PBC only) added hepatic decompensation to the composite end point and assessed efficacy in patients with or without cirrhosis. Results: During the 6-year follow-up, there were 5 deaths or liver transplantations in 209 subjects in the POISE cohort (2.4%), 135 of 1381 patients in the Global PBC control (10.0%), and 281 of 2135 patients in the UK-PBC control (13.2%). The hazard ratios (HRs) for the primary outcome were 0.29 (95% CI, 0.10–0.83) for POISE vs Global PBC and 0.30 (95% CI, 0.12–0.75) for POISE vs UK-PBC. In the Global PBC study, HR was 0.20 (95% CI, 0.03–1.22) for patients with cirrhosis and 0.31 (95% CI, 0.09–1.04) for those without cirrhosis; HR was 0.42 (95% CI, 0.21–0.85) including hepatic decompensation. Conclusions: Patients treated with OCA in a trial setting had significantly greater transplant-free survival than comparable external control patients.
KW - Global PBC
KW - Obeticholic Acid
KW - Propensity Score
KW - Transplant-Free Survival
KW - UK-PBC
UR - https://www.scopus.com/pages/publications/85140657330
U2 - 10.1053/j.gastro.2022.08.054
DO - 10.1053/j.gastro.2022.08.054
M3 - Article
C2 - 36150526
AN - SCOPUS:85140657330
SN - 0016-5085
VL - 163
SP - 1630-1642.e3
JO - Gastroenterology
JF - Gastroenterology
IS - 6
ER -