Volume 170, Issue 4 pp. 930-938
Therapeutics

Beta-blocker usage after malignant melanoma diagnosis and survival: a population-based nested case–control study

C. McCourt

C. McCourt

Department of Dermatology, Belfast Health and Social Care Trust, Belfast, Northern Ireland

Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Institute of Clinical Sciences-B, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BJ Northern Ireland

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H.G. Coleman

H.G. Coleman

Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Institute of Clinical Sciences-B, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BJ Northern Ireland

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L.J. Murray

L.J. Murray

Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Institute of Clinical Sciences-B, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BJ Northern Ireland

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M.M. Cantwell

M.M. Cantwell

Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Institute of Clinical Sciences-B, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BJ Northern Ireland

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O. Dolan

O. Dolan

Department of Dermatology, Belfast Health and Social Care Trust, Belfast, Northern Ireland

Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Institute of Clinical Sciences-B, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BJ Northern Ireland

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D.G. Powe

D.G. Powe

Department of Cellular Pathology, Queen's Medical Centre, Nottingham University Hospitals NHS Trust and The John Van Geest Cancer Centre, Nottingham Trent University, Nottingham, U.K

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C.R. Cardwell

Corresponding Author

C.R. Cardwell

Cancer Epidemiology and Health Services Research Group, Centre for Public Health, Institute of Clinical Sciences-B, Royal Victoria Hospital Site, Queen's University Belfast, Grosvenor Road, Belfast, BT12 6BJ Northern Ireland

Correspondence

Christopher Cardwell.

E-mail: [email protected]

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First published: 05 March 2014
Citations: 53
Funding sources This work was supported by a clinician training bursary from Cancer Research U.K. (awarded to C.M.). H.G.C. is supported by a Cancer Research U.K. Population Research Postdoctoral Fellowship. This study is based in part on data from the General Practice Research Database obtained under licence from the U.K. Medicines and Healthcare Regulatory Agency. The interpretation and conclusions contained in study are those of the authors alone.
Conflicts of interest None declared.

Summary

Background

Beta-blockers have potential antiangiogenic and antimigratory activity. Studies have demonstrated a survival benefit in patients with malignant melanoma treated with beta-blockers.

Objectives

To investigate the association between postdiagnostic beta-blocker usage and risk of melanoma-specific mortality in a population-based cohort of patients with malignant melanoma.

Methods

Patients with incident malignant melanoma diagnosed between 1998 and 2010 were identified within the U.K. Clinical Practice Research Datalink and confirmed using cancer registry data. Patients with malignant melanoma with a melanoma-specific death (cases) recorded by the Office of National Statistics were matched on year of diagnosis, age and sex to four malignant melanoma controls (who lived at least as long after diagnosis as their matched case). A nested case–control approach was used to investigate the association between postdiagnostic beta-blocker usage and melanoma-specific death and all-cause mortality. Conditional logistic regression was applied to generate odds ratios (ORs) and 95% confidence intervals (CIs) for beta-blocker use determined from general practitioner prescribing.

Results

Beta-blocker medications were prescribed after malignant melanoma diagnosis to 20·2% of 242 patients who died from malignant melanoma (cases) and 20·3% of 886 matched controls. Consequently, there was no association between beta-blocker use postdiagnosis and cancer-specific death (OR 0·99, 95% CI 0·68–1·42), which did not markedly alter after adjustment for confounders including stage (OR 0·87, 95% CI 0·56–1·34). No significant associations were detected for individual beta-blocker types, by defined daily doses of use or for all-cause mortality.

Conclusions

Contrary to some previous studies, beta-blocker use after malignant melanoma diagnosis was not associated with reduced risk of death from melanoma in this U.K. population-based study.

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