Skip to main content
Top
Published in: Trials 1/2023

Open Access 01-12-2023 | Prostate Cancer | Study protocol

DEPROMP Trial: the additive value of PSMA-PET/CT-guided biopsy for prostate cancer management in biopsy naïve men—study protocol for a randomized trial

Authors: P. Krausewitz, R. A. Bundschuh, F. C. Gaertner, M. Essler, U. Attenberger, J. Luetkens, G. Kristiansen, M. Muders, C-H. Ohlmann, S. Hauser, J. Ellinger, M. Ritter

Published in: Trials | Issue 1/2023

Login to get access

Abstract

Background

The primary objective is to determine the proportion of men with suspected prostate cancer (PCA) in whom the management plans are changed by additive gallium-68 prostate-specific membrane antigen positron emission tomography/computed tomography (PSMA-PET/CT) guided prostate biopsy (PET-TB) in combination with standard of care (SOC) using systematic (SB) and multiparametric magnetic resonance imaging-guided biopsy (MR-TB) compared with SOC alone. The major secondary objectives are to determine the additive value of the combined approach of SB + MR-TB + PET-TB (PET/MR-TB) for detecting clinically significant PCA (csPCA) compared to SOC; to determine sensitivity, specificity, positive and negative predictive value and diagnostic accuracy of imaging techniques, respective imaging classification systems, and each biopsy method; and to compare preoperatively defined tumor burden and biomarker expression and pathological tumor extent in prostate specimens.

Methods

The DEPROMP study is a prospective, open-label, interventional investigator-initiated trial. Risk stratification and management plans after PET/MR-TB are conducted randomized and blinded by different evaluation teams of experienced urologists based on histopathological analysis and imaging information: one including all results of the PET/MR-TB and one excluding the additional information gained by PSMA-PET/CT guided biopsy. The power calculation was centered on pilot data, and we will recruit up to 230 biopsy-naïve men who will undergo PET/MR-TB for suspected PCA. Conduct and reporting of MRI and PSMA-PET/CT will be performed in a blinded fashion.

Discussion

The DEPROMP Trial will be the first to evaluate the clinically relevant effects of the use of PSMA-PET/CT in patients with suspected PCA compared to current SOC. The study will provide prospective data to determine the diagnostic yields of additional PET-TB in men with suspected PCA and the impact on treatment plans in terms of intra- and intermodal changes. The results will allow a comparative analysis of risk stratification by each biopsy method, including a performance analysis of the corresponding rating systems. This will reveal potential intermethod and pre- and postoperative discordances of tumor stage and grading, providing the opportunity to critically assess the need for multiple biopsies.

Trial registration

German Clinical Study Register DRKS 00024134. Registered on 26 January 2021.
Appendix
Available only for authorised users
Literature
10.
go back to reference van Leeuwen PJ, Emmett L, Ho B, Delprado W, Ting F, Nguyen Q, Stricker PD. Prospective evaluation of 68Gallium-prostate-specific membrane antigen positron emission tomography/computed tomography for preoperative lymph node staging in prostate cancer. BJU Int. 2017;119:209–15. https://doi.org/10.1111/bju.13540.CrossRefPubMed van Leeuwen PJ, Emmett L, Ho B, Delprado W, Ting F, Nguyen Q, Stricker PD. Prospective evaluation of 68Gallium-prostate-specific membrane antigen positron emission tomography/computed tomography for preoperative lymph node staging in prostate cancer. BJU Int. 2017;119:209–15. https://​doi.​org/​10.​1111/​bju.​13540.CrossRefPubMed
11.
go back to reference Lopci E, Saita A, Lazzeri M, Lughezzani G, Colombo P, Buffi NM, et al. (68)Ga-PSMA positron emission tomography/computerized tomography for primary diagnosis of prostate cancer in men with contraindications to or negative multiparametric magnetic resonance imaging: a prospective observational study. J Urol. 2018;200:95–103. https://doi.org/10.1016/j.juro.2018.01.079.CrossRefPubMed Lopci E, Saita A, Lazzeri M, Lughezzani G, Colombo P, Buffi NM, et al. (68)Ga-PSMA positron emission tomography/computerized tomography for primary diagnosis of prostate cancer in men with contraindications to or negative multiparametric magnetic resonance imaging: a prospective observational study. J Urol. 2018;200:95–103. https://​doi.​org/​10.​1016/​j.​juro.​2018.​01.​079.CrossRefPubMed
13.
go back to reference Kalapara AA, Nzenza T, Pan HYC, Ballok Z, Ramdave S, O’Sullivan R, et al. Detection and localisation of primary prostate cancer using (68) gallium prostate-specific membrane antigen positron emission tomography/computed tomography compared with multiparametric magnetic resonance imaging and radical prostatectomy specimen pathology. BJU Int. 2020;126:83–90. https://doi.org/10.1111/bju.14858.CrossRefPubMed Kalapara AA, Nzenza T, Pan HYC, Ballok Z, Ramdave S, O’Sullivan R, et al. Detection and localisation of primary prostate cancer using (68) gallium prostate-specific membrane antigen positron emission tomography/computed tomography compared with multiparametric magnetic resonance imaging and radical prostatectomy specimen pathology. BJU Int. 2020;126:83–90. https://​doi.​org/​10.​1111/​bju.​14858.CrossRefPubMed
15.
go back to reference Zhang L-L, Li W-C, Xu Z, Jiang N, Zang S-M, Xu L-W, et al. (68)Ga-PSMA PET/CT targeted biopsy for the diagnosis of clinically significant prostate cancer compared with transrectal ultrasound guided biopsy: a prospective randomized single-centre study. Eur J Nucl Med Mol Imaging. 2021;48:483–92. https://doi.org/10.1007/s00259-020-04863-2.CrossRefPubMed Zhang L-L, Li W-C, Xu Z, Jiang N, Zang S-M, Xu L-W, et al. (68)Ga-PSMA PET/CT targeted biopsy for the diagnosis of clinically significant prostate cancer compared with transrectal ultrasound guided biopsy: a prospective randomized single-centre study. Eur J Nucl Med Mol Imaging. 2021;48:483–92. https://​doi.​org/​10.​1007/​s00259-020-04863-2.CrossRefPubMed
16.
go back to reference Emmett L, Buteau J, Papa N, Moon D, Thompson J, Roberts MJ, et al. The additive diagnostic value of prostate-specific membrane antigen positron emission tomography computed tomography to multiparametric magnetic resonance imaging triage in the diagnosis of prostate cancer (PRIMARY): a prospective multicentre study. Eur Urol. 2021;80:682–9. https://doi.org/10.1016/j.eururo.2021.08.002.CrossRefPubMed Emmett L, Buteau J, Papa N, Moon D, Thompson J, Roberts MJ, et al. The additive diagnostic value of prostate-specific membrane antigen positron emission tomography computed tomography to multiparametric magnetic resonance imaging triage in the diagnosis of prostate cancer (PRIMARY): a prospective multicentre study. Eur Urol. 2021;80:682–9. https://​doi.​org/​10.​1016/​j.​eururo.​2021.​08.​002.CrossRefPubMed
17.
19.
go back to reference Artigas C, Diamand R, Shagera QA, Plouznikoff N, Fokoue F, Otte F-X, et al. Oligometastatic disease detection with (68)Ga-PSMA-11 PET/CT in hormone-sensitive prostate cancer patients (HSPC) with biochemical recurrence after radical prostatectomy: predictive factors and clinical impact. Cancers (Basel). 2021. https://doi.org/10.3390/cancers13194982.CrossRefPubMed Artigas C, Diamand R, Shagera QA, Plouznikoff N, Fokoue F, Otte F-X, et al. Oligometastatic disease detection with (68)Ga-PSMA-11 PET/CT in hormone-sensitive prostate cancer patients (HSPC) with biochemical recurrence after radical prostatectomy: predictive factors and clinical impact. Cancers (Basel). 2021. https://​doi.​org/​10.​3390/​cancers13194982.CrossRefPubMed
25.
go back to reference Scheltema MJ, Chang JI, Stricker PD, van Leeuwen PJ, Nguyen QA, Ho B, et al. Diagnostic accuracy of (68) Ga-prostate-specific membrane antigen (PSMA) positron-emission tomography (PET) and multiparametric (mp)MRI to detect intermediate-grade intra-prostatic prostate cancer using whole-mount pathology: impact of the addition of (68) Ga-PSMA PET to mpMRI. BJU Int. 2019;124(Suppl 1):42–9. https://doi.org/10.1111/bju.14794.CrossRefPubMed Scheltema MJ, Chang JI, Stricker PD, van Leeuwen PJ, Nguyen QA, Ho B, et al. Diagnostic accuracy of (68) Ga-prostate-specific membrane antigen (PSMA) positron-emission tomography (PET) and multiparametric (mp)MRI to detect intermediate-grade intra-prostatic prostate cancer using whole-mount pathology: impact of the addition of (68) Ga-PSMA PET to mpMRI. BJU Int. 2019;124(Suppl 1):42–9. https://​doi.​org/​10.​1111/​bju.​14794.CrossRefPubMed
Metadata
Title
DEPROMP Trial: the additive value of PSMA-PET/CT-guided biopsy for prostate cancer management in biopsy naïve men—study protocol for a randomized trial
Authors
P. Krausewitz
R. A. Bundschuh
F. C. Gaertner
M. Essler
U. Attenberger
J. Luetkens
G. Kristiansen
M. Muders
C-H. Ohlmann
S. Hauser
J. Ellinger
M. Ritter
Publication date
01-12-2023
Publisher
BioMed Central
Published in
Trials / Issue 1/2023
Electronic ISSN: 1745-6215
DOI
https://doi.org/10.1186/s13063-023-07197-0

Other articles of this Issue 1/2023

Trials 1/2023 Go to the issue