Minimal clinically important difference of the EORTC QLQ-CIPN20 for worsening peripheral neuropathy in patients receiving neurotoxic chemotherapy

Fiona Yeo, Chiu Chin Ng, Kiley W.J. Loh, Alex Molassiotis, Hui Lin Cheng, Joseph S.K. Au, Kwun To Leung, Yu Chung Li, Kam Hung Wong, Lorna Suen, Choi Wan Chan, Janelle Yorke, Carole Farrell, Aishwarya Bandla, Emily Ang, Violeta Lopez, Raghav Sundar, Alexandre Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

9 Citations (Scopus)

Abstract

Context/objectives: This is the first study to determine the minimal clinically important difference (MCID) of the European Organisation of Research and Treatment of Cancer Quality of Life Questionnaire-CIPN twenty-item scale (EORTC QLQ-CIPN20), a validated instrument designed to elicit cancer patients’ experience of symptoms and functional limitations related to chemotherapy-induced peripheral neuropathy. Methods: Cancer patients receiving neurotoxic chemotherapy completed EORTC QLQ-CIPN20 and the Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity [FACT/GOG-NTX] at baseline, second cycle of chemotherapy (T2, n = 287), and 12 months after chemotherapy (T3, n = 191). Anchor-based approach used the validated FACT/GOG-NTX neurotoxicity (Ntx) subscale to identify optimal MCID cutoff for deterioration. Distribution-based approach used one-third standard deviation (SD), half SD, and one standard error of measurement of the total EORTC QLQ-CIPN20 score. Results: There was a moderate correlation between the change scores of the Ntx subscale and sensory and motor subscales of QLQ-CIPN20 (T2: r = − 0.722, p < 0.001 and r = − 0.518, p < 0.001, respectively; T3: r = − 0.699; p < 0.001 and r = − 0.523, p < 0.001, respectively). The correlation between the change scores of the Ntx subscale and the QLQ-CIPN20 autonomic subscale was poor (T2: r = − 0.354, p < 0.001; T3: r = 0.286, p < 0.001). Based on the MCID derived using distribution-based method, the MCID for the QLQ-CIPN20 sensory subscale was 2.5–5.9 (6.9% to 16.4% of the subdomain score) and for motor subscale was 2.6–5.0 (8.1%–15.6% of the subdomain score). Conclusion: The MCID for the EORTC QLQ-CIPN20 established using distribution-based approaches was 2.5–5.9 for the sensory subscale and 2.6–5.0 for the motor subscale. When noted in assessments even with small change in scores, clinicians can be alerted for appropriate intervention.

Original languageEnglish
Pages (from-to)4753-4762
Number of pages10
JournalSupportive Care in Cancer
Volume27
Issue number12
DOIs
Publication statusPublished - 1 Dec 2019

Keywords

  • Cancer
  • EORTC QLQ-CIPN20
  • FACT/GOG-NTX
  • Minimal clinically important difference
  • Peripheral neuropathy

ASJC Scopus subject areas

  • Oncology

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