Sustained clinical response to infliximab in refractory Cronkhite-Canada syndrome

BMJ Case Rep. 2020 Dec 21;13(12):e236990. doi: 10.1136/bcr-2020-236990.

Abstract

A 59-year-old man with refractory Cronkhite-Canada syndrome (CCS) had poor clinical response to high-dose intravenous steroids, azathioprine, total parenteral nutrition and best supportive care. He remained highly symptomatic with abdominal pain, diarrhoea, recurrent sepsis and profound weight loss. Infliximab induction was given as rescue therapy, with marked clinical improvement observed within 3 weeks. This allowed steroid taper. Within 12 months of infliximab therapy, he achieved complete clinical remission and returned to his baseline weight and a full oral diet. Sequential endoscopies observed significant regression of previous marked gastrointestinal polyposis, including histological remission on colonic biopsies at 3.5 and 5 years of treatment. He currently remains in remission following 6 years of combination therapy with 5 mg/kg 8 weekly infliximab and azathioprine, and there is ongoing discussion with regard to the benefits and risks of therapy de-escalation. This case demonstrates the effectiveness of infliximab in inducing and maintaining remission in refractory CCS.

Keywords: drugs: gastrointestinal system; gastrointestinal system; immunological products and vaccines.

Publication types

  • Case Reports

MeSH terms

  • Azathioprine / pharmacology
  • Azathioprine / therapeutic use
  • Colon / diagnostic imaging
  • Colon / pathology
  • Colonoscopy
  • Drug Resistance
  • Gastrointestinal Agents / pharmacology
  • Gastrointestinal Agents / therapeutic use*
  • Gastroscopy
  • Glucocorticoids / pharmacology
  • Glucocorticoids / therapeutic use
  • Humans
  • Immunosuppressive Agents / pharmacology*
  • Immunosuppressive Agents / therapeutic use
  • Induction Chemotherapy / methods
  • Infliximab / pharmacology
  • Infliximab / therapeutic use*
  • Intestinal Mucosa / diagnostic imaging
  • Intestinal Mucosa / pathology
  • Intestinal Polyposis / diagnosis
  • Intestinal Polyposis / drug therapy*
  • Male
  • Middle Aged
  • Pyloric Antrum / diagnostic imaging
  • Pyloric Antrum / pathology
  • Treatment Outcome

Substances

  • Gastrointestinal Agents
  • Glucocorticoids
  • Immunosuppressive Agents
  • Infliximab
  • Azathioprine