Document Detail


Palliative radiotherapy trials for bone metastases: a systematic review.
MedLine Citation:
PMID:  17416863     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: The objective is to update previous meta-analyses with a systematic review of randomized palliative radiotherapy (RT) trials comparing single fractions (SFs) versus multiple fractions (MFs). METHODS: The analysis includes all published reports from randomized trials comparing SF or MF schedules for the treatment of painful bone metastases with localized RT. A systematic review was performed using the random-effects model with Review Manager version 4.1 (Cochrane Collaboration, Oxford, UK). The odds ratio and 95% CI were calculated for each trial and presented in a forest plot. RESULTS: A total of 16 randomized trials from 1986 onward were identified. For intention-to-treat patients, the overall response (OR) rates for pain were similar for SF at 1,468 (58%) of 2,513 patients and MF RT at 1,466 (59%) of 2,487 patients. The complete response (CR) rates for pain were 23% (545 of 2,375 patients) for SF and 24% (558 of 2,351 patients) for MF RT. No significant differences were found in response rates. Trends showing an increased risk for SF RT arm patients in terms of pathological fractures and spinal cord compressions were observed, but neither were statistically significant (P = .75 and P = .13, respectively). The likelihood of re-treatment was 2.5-fold higher (95% CI, 1.76 to 3.56) in SF RT arm patients (P < .00001). Repeated analysis of these end points, excluding dropout patients, did not alter the conclusions. Generally, no significant differences with respect to acute toxicities were observed between the arms. CONCLUSION: No significant differences in the arms were observed for overall and CR rates in both intention-to-treat and assessable patients. However, a significantly higher re-treatment rate with SFs was evident.
Authors:
Edward Chow; Kristin Harris; Grace Fan; May Tsao; Wai M Sze
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review    
Journal Detail:
Title:  Journal of clinical oncology : official journal of the American Society of Clinical Oncology     Volume:  25     ISSN:  1527-7755     ISO Abbreviation:  J. Clin. Oncol.     Publication Date:  2007 Apr 
Date Detail:
Created Date:  2007-04-09     Completed Date:  2007-05-15     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8309333     Medline TA:  J Clin Oncol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1423-36     Citation Subset:  IM    
Affiliation:
Department of Radiation Oncology, Toronto Sunnybrook Regional Cancer Centre, University of Toronto, Toronto, Ontario, Canada. edward.chow@sunnybrook.ca
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MeSH Terms
Descriptor/Qualifier:
Bone Neoplasms / radiotherapy*,  secondary*
Confidence Intervals
Humans
Odds Ratio
Palliative Care / methods*
Randomized Controlled Trials as Topic

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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