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. 2010;15(6):636-47.
doi: 10.1634/theoncologist.2009-0265. Epub 2010 May 18.

Changes in functional performance measures in adults undergoing chemoradiation for primary malignant glioma: a feasibility study

Lee W Jones  1 , Marina Mourtzakis, Katherine B Peters, Allan H Friedman, Miranda J West, Stephanie K Mabe, William E Kraus, Henry S Friedman, David A Reardon
Affiliations

Changes in functional performance measures in adults undergoing chemoradiation for primary malignant glioma: a feasibility study

Lee W Jones et al. Oncologist. 2010.

Abstract

Purpose: To investigate the feasibility of longitudinal assessment of functional performance measures in newly diagnosed postsurgical malignant glioma patients.

Methods: Patients with histologically confirmed, clinically stable, postsurgical, and previously untreated high-grade glioma (HGG) or low-grade glioma (LGG) were studied. Using a prospective design, all participants performed a cardiopulmonary exercise test with expired gas analysis to assess cardiorespiratory function (VO(2peak)) immediately following surgical resection (mean, 10 days). Additional functional outcomes were skeletal muscle cross-sectional area (CSA) via magnetic resonance imaging, isokinetic muscle strength (isokinetic dynamometry), and body composition (air displacement plethysmography). Quality of life (QOL) was assessed by the Functional Assessment of Cancer Therapy-Brain scale. All study assessments were repeated at 6 and 24 weeks following surgery.

Results: Thirty-five patients (HGG, n = 25; LGG, n = 10) completed baseline assessments. Of these, 20 HGG (80%) and nine LGG (90%) and 15 HGG (60%) and nine LGG (90%) patients completed study assessments at 6 weeks and 24 weeks, respectively. Intention-to-treat analyses indicated several significant time-by-group interactions, with favorable improvements in functional and QOL endpoints from baseline to 24 weeks in the LGG cohort and unfavorable changes in the HGG cohort. Per-protocol analyses including participants assessed at all three study timepoints indicated significant improvements in VO(2peak) and fatigue from baseline to 24 weeks in the HGG cohort; peak workload, body composition, and muscle strength improved from baseline to 6 weeks (all p-values < .05).

Conclusions: Longitudinal quantitative functional assessments are safe and feasible among select patients undergoing chemoradiation for primary malignant glioma. Large prospective studies investigating the clinical importance of these measures appear warranted.

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Conflict of interest statement

Disclosures: Lee W. Jones: None; Marina Mourtzakis: None; Katherine B. Peters: None; Allan H. Friedman: None; Miranda J. West: None; Stephanie K. Mabe: None; William E. Kraus: None; Henry S. Friedman: None; David A. Reardon: None.

The content of this article has been reviewed by independent peer reviewers to ensure that it is balanced, objective, and free from commercial bias. No financial relationships relevant to the content of this article have been disclosed by the authors or independent peer reviewers.

Figures

Figure 1.
Figure 1.
Study flow.
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