Document Detail


Comparison of Skeletal Complications and Treatment Patterns Associated With Early vs. Delayed Zoledronic Acid Therapy in Multiple Myeloma.
MedLine Citation:
PMID:  21700528     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: This study retrospectively compared the risks of skeletal-related events (SREs) and zoledronic acid (ZOL) treatment discontinuation associated with early vs. delayed ZOL therapy for patients with symptomatic multiple myeloma (MM). PATIENTS AND METHODS: Data were collected from a physician-administered medical chart review among US patients with a confirmed diagnosis of symptomatic MM treated after 01/01/2002. Early and delayed ZOL therapy were defined, respectively, as initiating ZOL ≤ 60 days (N = 126) vs. > 60 days (N = 186) after the first symptomatic MM diagnosis. Kaplan-Meier analysis with a log-rank test was performed to compare the risk of SREs between the cohorts. Cox proportional hazard modeling compared the risk of SREs associated with early vs. delayed ZOL treatment, controlling for demographic factors, stage of MM, bone health status, and presence of major comorbidities at diagnosis. Time to ZOL discontinuation was evaluated using the Kaplan-Meier method, following patients from the date of ZOL initiation. RESULTS: Time to the first SRE was significantly longer for patients who received early treatment with ZOL (P = .005). At 2 years after diagnosis, the SRE-free rate was 74.6% vs. 56.5% in the early vs. delayed treatment group, respectively. Early ZOL therapy was associated with a significantly lower risk of any SRE (hazard rate [HR] = .625 vs. delayed ZOL therapy; P = .029). At 2 years from ZOL therapy initiation, rates of ZOL discontinuation were 9.6% vs. 16.4% among patients with early vs. delayed therapy, respectively (P < .05). CONCLUSION: Early treatment with ZOL was associated with significantly reduced risks of SREs and with better treatment persistence compared with delayed treatment.
Authors:
Eric Q Wu; Arielle G Bensimon; Maryna Marynchenko; Madhav Namjoshi; Amy Guo; Andrew P Yu; Solveig G Ericson; Noopur Raje
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-5-6
Journal Detail:
Title:  Clinical lymphoma, myeloma & leukemia     Volume:  -     ISSN:  2152-2669     ISO Abbreviation:  -     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-6-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101525386     Medline TA:  Clin Lymphoma Myeloma Leuk     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Inc. All rights reserved.
Affiliation:
Analysis Group, Boston, MA.
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