1. Prostate cancer prognosis after initiation of androgen deprivation therapy among statin users. A population-based cohort study
- Author
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Teemu J. Murtola, A.I.P. Peltomaa, Anssi Auvinen, Paavo Raittinen, Kirsi Talala, Kimmo Taari, Teuvo L.J. Tammela, Tampere University, Department of Mathematics and Systems Analysis, Finnish Cancer Registry, University of Helsinki, Aalto-yliopisto, Aalto University, Department of Surgery, Clinical Medicine, Health Sciences, HUS Abdominal Center, Clinicum, Urologian yksikkö, and Helsinki University Hospital Area
- Subjects
Oncology ,Male ,Cancer Research ,medicine.medical_specialty ,Statin ,medicine.drug_class ,Urology ,3122 Cancers ,030232 urology & nephrology ,Article ,Androgen deprivation therapy ,03 medical and health sciences ,Prostate cancer ,0302 clinical medicine ,Cancer epidemiology ,Internal medicine ,Epidemiology ,Epidemiology of cancer ,medicine ,Humans ,Finland ,Aged ,business.industry ,Hazard ratio ,Prostatic Neoplasms ,Androgen Antagonists ,Middle Aged ,medicine.disease ,Prognosis ,3126 Surgery, anesthesiology, intensive care, radiology ,3. Good health ,Survival Rate ,030220 oncology & carcinogenesis ,Case-Control Studies ,Cohort ,Disease Progression ,Population study ,Drug Therapy, Combination ,Hydroxymethylglutaryl-CoA Reductase Inhibitors ,business ,Follow-Up Studies - Abstract
Purpose Statins’ cholesterol-lowering efficacy is well-known. Recent epidemiological studies have found that inhibition of cholesterol synthesis may have beneficial effects on prostate cancer (PCa) patients, especially patients treated with androgen deprivation therapy (ADT). We evaluated statins’ effect on prostate cancer prognosis among patients treated with ADT. Materials and methods Our study population consisted of 8253 PCa patients detected among the study population of the Finnish randomized study of screening for prostate cancer. These were limited to 4428 men who initiated ADT during the follow-up. Cox proportional regression model adjusted for tumor clinical characteristics and comorbidities was used to estimate hazard ratios for risk of PSA relapse after ADT initiation and prostate cancer death. Results During the median follow-up of 6.3 years after the ADT initiation, there were 834 PCa deaths and 1565 PSA relapses in a study cohort. Statin use after ADT was associated with a decreased risk of PSA relapse (HR 0.73, 95% CI 0.65–0.82) and prostate cancer death (HR 0.82; 95% CI 0.69–0.96). In contrast, statin use defined with a one-year lag (HR 0.89, 95% CI 0.76–1.04), statin use before ADT initiation (HR 1.12, 95% CI 0.96–1.31), and use in the first year on ADT (HR 1.02, 95% CI 0.85–1.24) were not associated with prostate cancer death, without dose dependency. Conclusion Statin use after initiation of ADT, but not before, was associated with improved prostate cancer prognosis.
- Published
- 2021