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Cited by 112

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Creatine supplements in patients with idiopathic inflammatory myopathies who are clinically weak after conventional pharmacologic treatment: six-month, double-blind, randomized, placebo-controlled trial

Chung, Yuen‐li, Alexanderson, Helene, Pipitone, Nicoló, Morrison, Catherine, Dastmalchi, Maryam, Ståhl‐Hallengren, Christina, Richards, Selwyn, Thomas, E. Louise, Hamilton, Gavin, Bell, Jimmy D., Lundberg, Ingrid E., Scott, David L.·2007·Arthritis Care & Research
DOI 10.1002/art.22687
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Abstract

Objective: To test the hypothesis that oral creatine supplements with exercise are more effective than exercise alone in improving muscle function in patients with established dermatomyositis or polymyositis receiving chronic medical therapies who are clinically weak yet stable. Methods: In a 6‐month, 2‐center, double‐blind, randomized controlled trial, patients were randomized to receive oral creatine supplements (8 days, 20 gm/day then 3 gm/day) or placebo. All patients followed a home exercise program. The primary outcome was aggregate functional performance time (AFPT), reflecting the ability to undertake high‐intensity exercise. Secondary outcomes included a functional index measuring endurance and muscle bioenergetics on 31 P magnetic resonance spectroscopy ( 31 P MRS). Patients were receiving stable immunosuppressive treatment and/or corticosteroids. Results: A total of 37 patients with polymyositis or dermatomyositis were randomized (19 to creatine, 18 to placebo); 29 completed 6 months. Intent‐to‐treat analyses demonstrated that AFPT improved significantly at 6 months with creatine (median decrease 13%, range –32–8%) compared with placebo (median decrease 3%, range –13–16%; P = 0.029 by Mann‐Whitney U test). A completer analysis also showed significant benefits from creatine ( P = 0.014). The functional index improved significantly with both creatine and placebo ( P < 0.05 by paired Wilcoxon's rank sum test), with a significant benefit between groups in the completer analysis only. Phosphocreatine/β‐nucleoside triphosphate ratios using MRS increased significantly in the creatine group ( P < 0.05) but not in the control group. No clinically relevant adverse events were associated with creatine. Conclusion: Oral creatine supplements combined with home exercises improve functional performance without significant adverse effects in patients with polymyositis or dermatomyositis. They appear safe, effective, and inexpensive.

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Cited by

Metadata

Authors
Chung, Y., Alexanderson, H., Pipitone, N., Morrison, C., Dastmalchi, M., Ståhl‐Hallengren, C., Richards, S., Thomas, E. L., Hamilton, G., Bell, J. D., Lundberg, I. E., & Scott, D. L.
Venue
Arthritis Care & Research
Publisher
Wiley
Published
2007-04-30
Volume
57
Issue
4
Pages
694-702
ISSN
  • 0893-7524
  • 1529-0123
DOI
10.1002/art.22687
Cited by
112
References
6
Language
en
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)

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