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Understanding Fatigue in Primary Biliary Cholangitis.

Naw April Phaw1,2, Jessica Katharine Dyson1,2, George Mells3

  • 1Institute of Translational and Clinical Research, Level 4 William Leech Building, Newcastle University, Framlington Place, Newcastle-upon-Tyne, NE2 4HH, UK.

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Summary
This summary is machine-generated.

Fatigue in primary biliary cholangitis (PBC) is complex and heterogeneous. This study identified a distinct subgroup of PBC patients with both fatigue and cognitive symptoms, suggesting a potential target for future clinical trials.

Keywords:
CholestasisCognitive impairmentFatiguePrimary biliary cholangitis

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Area of Science:

  • Hepatology
  • Clinical Medicine
  • Patient-Reported Outcomes

Background:

  • Fatigue significantly impacts 50% of primary biliary cholangitis (PBC) patients, severely affecting quality of life for 20%.
  • The underlying mechanisms of fatigue in PBC remain poorly understood.
  • Patient heterogeneity in fatigue presentation complicates clinical trial recruitment and therapeutic development.

Purpose of the Study:

  • To investigate subgroups of fatigue in primary biliary cholangitis (PBC) patients.
  • To identify distinct patient profiles for targeted therapeutic strategies.
  • To facilitate more effective patient selection for clinical trials in PBC.

Main Methods:

  • Utilized data from the UK-PBC cohort, including 2002 patients.
  • Assessed symptoms using validated instruments: PBC-40, Hospital Anxiety and Depression Score, Epworth Sleepiness Scale, and Orthostatic Grading Scale.
  • Defined clinically significant fatigue and cognitive symptoms based on established "moderate" symptom cutoffs.

Main Results:

  • 60% of patients (1203/2002) reported significant fatigue, and 36% (730/2002) reported significant cognitive symptoms.
  • Among those with significant fatigue, 55% (663/1203) also had significant cognitive symptoms ("fatigue with cognitive symptoms").
  • Patients with "fatigue with cognitive symptoms" were younger, experienced more severe fatigue, and reported greater social and emotional impact.

Conclusions:

  • Fatigue in PBC is complex, with patient heterogeneity hindering therapeutic progress.
  • This study identified discrete subgroups, notably "fatigue with cognitive symptoms," which appears homogenous.
  • This homogenous subgroup represents a promising, coherent cohort for future clinical trials in primary biliary cholangitis.