Anti-tumour necrosis factor-alpha treatment for perianal Crohn's disease in Australia

Daniel C Burger1, Ian C Lawrance, Peter A Bampton

  • 1Department of Gastroenterology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia.

Insights

Many patients with perianal Crohn's disease (PCD) cannot access anti-tumour necrosis factor-alpha (anti-TNFalpha) treatments due to current Australian Pharmaceutical Benefits Scheme (PBS) guidelines. This study highlights the need to expand PBS criteria for this patient group.

Area of Science:

  • Gastroenterology
  • Immunology
  • Pharmacoeconomics

Background:

  • Perianal Crohn's disease (PCD) affects a significant portion of inflammatory bowel disease (IBD) patients.
  • Access to advanced therapies like anti-tumour necrosis factor-alpha (anti-TNFalpha) is crucial for managing severe PCD.
  • Current Australian Pharmaceutical Benefits Scheme (PBS) guidelines may limit access to these essential treatments.

Purpose of the Study:

  • To determine the prevalence of PCD within a large Australian IBD cohort.
  • To assess the eligibility of PCD patients for PBS-subsidised anti-TNFalpha therapy.
  • To identify gaps in current PBS criteria for optimal PCD management.

Main Methods:

  • Retrospective analysis of 3589 IBD patients from four Australian centres (2004-2008).
  • Identification of patients with Crohn's disease (CD) and specifically PCD.
  • Evaluation of anti-TNFalpha therapy indication and PBS eligibility for PCD patients.

Main Results:

  • Out of 1815 CD patients, 310 (17%) had PCD.
  • Anti-TNFalpha therapy was indicated for 166 (54%) PCD patients.
  • 49 (30%) of indicated PCD patients did not meet PBS criteria for subsidised treatment.

Conclusions:

  • A substantial proportion of patients with clinically significant PCD are denied optimal medical treatment.
  • Current PBS criteria for anti-TNFalpha therapy require revision to include this vulnerable IBD subgroup.
  • Expanding PBS access could improve outcomes for Australian patients with perianal Crohn's disease.
Abstract

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