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Walls GM, O'Connor J, Harbinson M, McCarron EP, Duane F, McCann C, McKavanagh P, Johnston DI, Erekkath J, Giacometti V, Gavin AT, McAleese J, Hounsell AR, Cole AJ, Butterworth KT, McGarry CK, Hanna GG, Jain S. Association between statin therapy dose intensity and radiation cardiotoxicity in non-small cell lung cancer: Results from the NI-HEART study. Radiother Oncol 2023; 186:109762. [PMID: 37348608 DOI: 10.1016/j.radonc.2023.109762] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/30/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Abstract
INTRODUCTION Radiation cardiotoxicity is a dose-limiting toxicity and major survivorship issue for patients with non-small cell lung cancer (NSCLC) completing curative-intent radiotherapy, however patients' cardiovascular baseline is not routinely optimised prior to treatment. In this study we examined the impact of statin therapy on overall survival and post-radiotherapy cardiac events. METHODS Patients treated between 2015-2020 at a regional center were identified. Clinical notes were interrogated for baseline patient, tumor and cardiac details, and both follow-up cancer control and cardiac events. Three cardiologists verified cardiac events. Radiotherapy planning scans were retrieved for application of validated deep learning-based autosegmentation. Pre-specified Cox regression analyses were generated with varying degrees of adjustment for overall survival. Fine and Gray regression for the risk of cardiac events, accounting for the competing risk of death and cardiac covariables was undertaken. RESULTS Statin therapy was prescribed to 59% of the 478 included patients. The majority (88%) of patients not prescribed a statin had at least one indication for statin therapy according to cardiovascular guidelines. In total, 340 patients (71%) died and 79 patients (17%) experienced a cardiac event. High-intensity (HR 0.68, 95%CI 0.50-0.91, p = 0.012) and medium-intensity (HR 0.70, 95%CI 0.51-0.97, p = 0.033) statin therapy were associated with improved overall survival after adjustment for patient, cancer, treatment, response and cardiovascular clinical factors. There were no consistent differences in the rate or grade of cardiac events according to statin intensity. CONCLUSIONS Statin therapy is associated with improved overall survival in patients receiving curative-intent radiotherapy for NSCLC, and there is evidence of a dose-response relationship. This study highlights the importance of a pre-treatment cardiovascular risk assessment in this cohort. Further studies are needed to examine if statin therapy is cardioprotective in patients undergoing treatment for NSCLC with considerable incidental cardiac radiation dose and a low baseline cardiac risk.
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Affiliation(s)
- Gerard M Walls
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom; Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom.
| | - John O'Connor
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
| | - Mark Harbinson
- Department of Cardiology, Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom; Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
| | - Eamon P McCarron
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom; Department of Clinical Biochemistry, Royal Victoria Hospital, Belfast Health and Social Care Trust, Falls Road, Belfast, Northern Ireland, United Kingdom
| | - Frances Duane
- St. Luke's Radiation Oncology Network, St. Luke's Hospital, Dublin, Ireland; Trinity St James's Cancer Institute, St. James's Hospital, Dublin, Ireland
| | - Conor McCann
- Department of Cardiology, Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom
| | - Peter McKavanagh
- Department of Cardiology, Ulster Hospital, South Eastern Health & Social Care Trust, Upper Newtonards Road, Dundonald, Northern Ireland, United Kingdom
| | - David I Johnston
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom
| | - Jayaraj Erekkath
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom
| | - Valentina Giacometti
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
| | - Anna T Gavin
- Northern Ireland Cancer Registry, Queen's University Belfast, Falls Road, Belfast, Northern Ireland, United Kingdom
| | - Jonathan McAleese
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom
| | - Alan R Hounsell
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom; Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
| | - Aidan J Cole
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom
| | - Karl T Butterworth
- Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
| | - Conor K McGarry
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom; Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
| | - Gerard G Hanna
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom; Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
| | - Suneil Jain
- Cancer Centre Belfast City Hospital, Belfast Health & Social Care Trust, Lisburn Road, Belfast, Northern Ireland, United Kingdom; Patrick G Johnston Centre for Cancer Research, Queen's University Belfast, Jubilee Road, Belfast, Northern Ireland, United Kingdom
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