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Simplified care-pathway selection for nonspecialist practice: the GLOBAL Primary Biliary Cholangitis Study Group Age, Bilirubin, Alkaline phosphatase risk assessment tool.

  • Carla F Murillo Perez
  • , Aliya Gulamhusein
  • , Marco Carbone
  • , Palak J Trivedi
  • , Adriaan J van der Meer
  • , Christophe Corpechot
  • , Pier Maria Battezzati
  • , Willem J Lammers
  • , Nora Cazzagon
  • , Annarosa Floreani
  • , Albert Parés
  • , Frederik Nevens
  • , Ana Lleo
  • , Marlyn J Mayo
  • , Kris V Kowdley
  • , Cyriel Y Ponsioen
  • , George N Dalekos
  • , Nikolaos K Gatselis
  • , Douglas Thorburn
  • , Andrew L Mason
  • Harry Janssen, Xavier Verhelst, Tony Bruns, Keith D Lindor, Olivier Chazouillères, Pietro Invernizzi, Bettina E Hansen, Gideon M Hirschfield, GLOBAL PBC Study Group

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Opportunity to redefine the care journeys for those living with primary biliary cholangitis (PBC) includes facilitating access to enhanced (PBC-dedicated) programmes by nonspecialist risk 'flagging' of patients.

OBJECTIVE: To develop a nonexpert PBC stratification tool to help care pathway choices (standard vs. enhanced) choices in PBC.

METHODS: We included ursodeoxycholic acid-treated patients with PBC from the Global PBC Study Group. The performance of baseline and 1-year clinical markers with transplant-free survival was assessed to develop the 'ABA' tool using Age (A), Bilirubin (B), and Alkaline phosphatase (A). Added value of fibrosis estimation was assessed.

RESULTS: 'ABA' classification mapped three risk groups (n = 2226): low [Age > 50 years, bilirubin ≤ 1 × ULN, alkaline phosphatase (ALP) ≤ 3 × ULN], high (Age ≤ 50 years, bilirubin > 1 × ULN, ALP > 3 × ULN), and intermediate (other). Transplant-free survival at 10 years in the low-, intermediate-, and high-risk groups were 89, 77, and 59% at baseline and 86, 76, and 40% at 1 year, respectively. We propose that high-risk patients at baseline be directly triaged to enhanced (PBC-dedicated) care and the remaining be reassessed at 1 year. Modelling showed after 1 year 46% patients were proposed to enhanced care and 54% to standard care. The 'ABA' mapped pathways facilitated identification of patients at risk based on a young age, as compared to traditional liver biochemical stratification. In patients proposed to standard care, estimated fibrosis stage had ongoing prognostic value.

CONCLUSION: Nonspecialist use of the 'ABA' risk tool could prioritize care journey choices for patients with PBC.

Original languageAmerican English
JournalArticles, Abstracts, and Reports
StatePublished - Dec 14 2020

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