Randomised double-blind phase 3 clinical study testing impact of atorvastatin on prostate cancer progression after initiation of androgen deprivation therapy: study protocol

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  • Aino Siltari, Tampere University, University of Helsinki
  • ,
  • Jarno Riikonen, Tampere University
  • ,
  • Juha Koskimäki, Tampere University
  • ,
  • Tomi Pakarainen, Tampere University
  • ,
  • Otto Ettala, University of Turku
  • ,
  • Peter Boström, University of Turku
  • ,
  • Heikki Seikkula, Jyvaskyla Central Hospital
  • ,
  • Andres Kotsar, University of Tartu
  • ,
  • Teuvo Tammela, Tampere University
  • ,
  • Mika Helminen, Tampere University
  • ,
  • Paavo V. Raittinen, Aalto University
  • ,
  • Terho Lehtimäki, Tampere University
  • ,
  • Mikkel Fode, Københavns Universitet
  • ,
  • Peter Østergren, Københavns Universitet
  • ,
  • Michael Borre
  • Antti Rannikko, University of Helsinki
  • ,
  • Timo Marttila, Seinajoki Central Hospital
  • ,
  • Arto Salonen, University of Eastern Finland
  • ,
  • Hanna Ronkainen, University of Oulu
  • ,
  • Sven Löffeler, Vestfold Hospital Trust
  • ,
  • Teemu J. Murtola, Tampere University

INTRODUCTION: Blood cholesterol is likely a risk factor for prostate cancer prognosis and use of statins is associated with lowered risk of prostate cancer recurrence and progression. Furthermore, use of statins has been associated with prolonged time before development of castration resistance (CR) during androgen deprivation therapy (ADT) for prostate cancer. However, the efficacy of statins on delaying castration-resistance has not been tested in a randomised placebo-controlled setting.This study aims to test statins' efficacy compared to placebo in delaying development of CR during ADT treatment for primary metastatic or recurrent prostate cancer. Secondary aim is to explore effect of statin intervention on prostate cancer mortality and lipid metabolism during ADT. METHODS AND ANALYSIS: In this randomised placebo-controlled trial, a total of 400 men with de novo metastatic prostate cancer or recurrent disease after primary treatment and starting ADT will be recruited and randomised 1:1 to use daily 80 mg of atorvastatin or placebo. All researchers, study nurses and patients will be blinded throughout the trial. Patients are followed until disease recurrence or death. Primary outcome is time to formation of CR after initiation of ADT. Serum lipid levels (total cholesterol, high-density lipoprotein (HDL), low-density lipoprotein (LDL) and trigyserides) are analysed to test whether changes in serum cholesterol parameters during ADT predict length of treatment response. Furthermore, the trial will compare quality of life, cardiovascular morbidity, changes in blood glucose and circulating cell-free DNA, and urine lipidome during trial. ETHICS AND DISSEMINATION: This study is approved by the Regional ethics committees of the Pirkanmaa Hospital District, Science centre, Tampere, Finland (R18065M) and Tarto University Hospital, Tarto, Estonia (319/T-6). All participants read and sign informed consent form before study entry. After publication of results for the primary endpoints, anonymised summary metadata and statistical code will be made openly available. The data will not include any information that could make it possible to identify a given participant. TRIAL REGISTRATION NUMBER: Clinicaltrial.gov: NCT04026230, Eudra-CT: 2016-004774-17, protocol code: ESTO2, protocol date 10 September 2020 and version 6.

OriginalsprogEngelsk
Artikelnummere050264
TidsskriftBMJ Open
Vol/bind12
Nummer4
ISSN2044-6055
DOI
StatusUdgivet - apr. 2022

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© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.

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