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Exposure to bisphosphonates and risk of common non-gastrointestinal cancers: series of nested case–control studies using two primary-care databases

Vinogradova, Yana; Coupland, Carol; Hippisley-Cox, Julia

Authors

CAROL COUPLAND carol.coupland@nottingham.ac.uk
Professor of Medical Statistics

Julia Hippisley-Cox



Abstract

Background: Bisphosphonates are the most commonly prescribed osteoporosis drugs but long-term effects are unclear, although antitumour properties are known from preclinical studies.
Methods: Nested case–control studies were conducted to investigate bisphosphonate use and risks of common nongastrointestinal cancers (breast, prostate, lung, bladder, melanoma, ovarian, pancreas, uterus and cervical). Patients 50 years and older, diagnosed with primary cancers between 1997 and 2011, were matched to five controls using the UK practice-based QResearch and Clinical Practice Research Datalink (CPRD) databases. The databases were analysed separately and the results combined.
Results: A total of 91 556 and 88 845 cases were identified from QResearch and CPRD, respectively. Bisphosphonate use was associated with reduced risks of breast (odds ratio (OR): 0.92, 95% confidence interval (CI): 0.87–0.97), prostate (OR: 0.87, 95% CI: 0.79–0.96) and pancreatic (OR: 0.79, 95% CI: 0.68–0.93) cancers in the combined analyses, but no significant trends with duration. For alendronate, reduced risk associations were found for prostate cancer in the QResearch (OR: 0.81, 95% CI: 0.70–0.93) and combined (OR: 0.84, 95% CI: 0.75–0.93) analyses (trend with duration P-values 0.009 and 0.001). There were no significant associations from any of the other analyses.
Conclusion: In this series of large population-based case–control studies, bisphosphonate use was not associated with increased risks for any common non-gastrointestinal cancers.

Citation

Vinogradova, Y., Coupland, C., & Hippisley-Cox, J. (2013). Exposure to bisphosphonates and risk of common non-gastrointestinal cancers: series of nested case–control studies using two primary-care databases. British Journal of Cancer, 109, doi:10.1038/bjc.2013.383

Journal Article Type Article
Publication Date Jul 18, 2013
Deposit Date Apr 22, 2014
Publicly Available Date Apr 22, 2014
Journal British Journal of Cancer
Print ISSN 0007-0920
Electronic ISSN 0007-0920
Publisher Cancer Research UK
Peer Reviewed Peer Reviewed
Volume 109
DOI https://doi.org/10.1038/bjc.2013.383
Public URL http://eprints.nottingham.ac.uk/id/eprint/2981
Publisher URL http://www.nature.com/bjc/journal/v109/n3/full/bjc2013383a.html
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nd-sa/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nd-sa/4.0





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