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Goyal NA, Greenberg SA, Cauchi J, Araujo N, Li V, Wencel M, Irani T, Wang LH, Palma AM, Villalta SA, Mozaffar T. Correlations of disease severity outcome measures in inclusion body myositis. Neuromuscul Disord 2022; 32:800-805. [PMID: 36050251 PMCID: PMC10069380 DOI: 10.1016/j.nmd.2022.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/13/2022] [Accepted: 08/22/2022] [Indexed: 11/21/2022]
Abstract
This study aimed to evaluate the correlation between various outcome measures used to assess disease severity and progression in inclusion body myositis (IBM) clinical trials. A cross-sectional study, involving 51 IBM patients meeting the European Neuromuscular Center (ENMC) 2011 criteria for clinically defined or probable IBM, was completed at the University of California, Irvine. Clinical details, demographic data, and functional data including timed get up (TGU), manual muscle testing, hand grip, pinch dynamometry, as well as IBM functional rating scale (IBMFRS), modified Rankin score, forced vital capacity (FVC), and modified ocular bulbar facial respiratory scale (mOBFRS) were collected on all patients. Descriptive statistics and Pearson's r correlation were performed to analyze the data. Age of the patient did not correlate with any of the outcome measures. Greater severity of IBMFRS scores correlated with longer disease duration as well as greater severity for FVC, strength outcomes, TGU, modified Rankin, and mOBFRS. Additionally, TGU strongly correlated with muscle strength measurements, modified Rankin, and mOBFRS. mOBFRS moderately correlated with IBMFRS, muscle strength, FVC, TGU and modified Rankin score. We demonstrate moderate to strong correlations among the disease severity outcome measures in this study.
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Affiliation(s)
- Namita A Goyal
- Department of Neurology, University of California, Irvine, CA, United States.
| | - Steven A Greenberg
- Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Jonathan Cauchi
- Department of Neurology, University of California, Irvine, CA, United States
| | - Nadia Araujo
- Department of Neurology, University of California, Irvine, CA, United States
| | - Vivian Li
- Department of Neurology, University of California, Irvine, CA, United States
| | - Marie Wencel
- Department of Neurology, University of California, Irvine, CA, United States
| | - Tyler Irani
- Department of Neurology, University of California, Irvine, CA, United States
| | - Leo H Wang
- Department of Neurology, University of Washington Medical Center, Seattle, WA, United States
| | - Anton M Palma
- Institute for Clinical and Translational Science, University of California, Irvine, CA, United States
| | - S Armando Villalta
- Department of Neurology, University of California, Irvine, CA, United States; Institute for Immunology, United States; Department of Physiology and Biophysics, United States
| | - Tahseen Mozaffar
- Department of Neurology, University of California, Irvine, CA, United States; Institute for Immunology, United States; Department of Pathology and Laboratory Medicine, University of California, Irvine, CA, United States
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