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European Association of Nuclear Medicine Focus 5 : Consensus on Molecular Imaging and Theranostics in Prostate Cancer

Oprea-Lager, Daniela Elena ; MacLennan, Steven ; Bjartell, Anders LU ; Briganti, Alberto ; Burger, Irene A. ; de Jong, Igle ; De Santis, Maria ; Eberlein, Uta ; Emmett, Louise and Fizazi, Karim , et al. (2024) In European Urology 85(1). p.49-60
Abstract

Background: In prostate cancer (PCa), questions remain on indications for prostate-specific membrane antigen (PSMA) positron emission tomography (PET) imaging and PSMA radioligand therapy, integration of advanced imaging in nomogram-based decision-making, dosimetry, and development of new theranostic applications. Objective: We aimed to critically review developments in molecular hybrid imaging and systemic radioligand therapy, to reach a multidisciplinary consensus on the current state of the art in PCa. Design, setting, and participants: The results of a systematic literature search informed a two-round Delphi process with a panel of 28 PCa experts in medical or radiation oncology, urology, radiology, medical physics, and nuclear... (More)

Background: In prostate cancer (PCa), questions remain on indications for prostate-specific membrane antigen (PSMA) positron emission tomography (PET) imaging and PSMA radioligand therapy, integration of advanced imaging in nomogram-based decision-making, dosimetry, and development of new theranostic applications. Objective: We aimed to critically review developments in molecular hybrid imaging and systemic radioligand therapy, to reach a multidisciplinary consensus on the current state of the art in PCa. Design, setting, and participants: The results of a systematic literature search informed a two-round Delphi process with a panel of 28 PCa experts in medical or radiation oncology, urology, radiology, medical physics, and nuclear medicine. The results were discussed and ratified in a consensus meeting. Outcome measurements and statistical analysis: Forty-eight statements were scored on a Likert agreement scale and six as ranking options. Agreement statements were analysed using the RAND appropriateness method. Ranking statements were analysed using weighted summed scores. Results and limitations: After two Delphi rounds, there was consensus on 42/48 (87.5%) of the statements. The expert panel recommends PSMA PET to be used for staging the majority of patients with unfavourable intermediate and high risk, and for restaging of suspected recurrent PCa. There was consensus that oligometastatic disease should be defined as up to five metastases, even using advanced imaging modalities. The group agreed that [177Lu]Lu-PSMA should not be administered only after progression to cabazitaxel and that [223Ra]RaCl2 remains a valid therapeutic option in bone-only metastatic castration-resistant PCa. Uncertainty remains on various topics, including the need for concordant findings on both [18F]FDG and PSMA PET prior to [177Lu]Lu-PSMA therapy. Conclusions: There was a high proportion of agreement among a panel of experts on the use of molecular imaging and theranostics in PCa. Although consensus statements cannot replace high-certainty evidence, these can aid in the interpretation and dissemination of best practice from centres of excellence to the wider clinical community. Patient summary: There are situations when dealing with prostate cancer (PCa) where both the doctors who diagnose and track the disease development and response to treatment, and those who give treatments are unsure about what the best course of action is. Examples include what methods they should use to obtain images of the cancer and what to do when the cancer has returned or spread. We reviewed published research studies and provided a summary to a panel of experts in imaging and treating PCa. We also used the research summary to develop a questionnaire whereby we asked the experts to state whether or not they agreed with a list of statements. We used these results to provide guidance to other health care professionals on how best to image men with PCa and what treatments to give, when, and in what order, based on the information the images provide.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Molecular hybrid imaging, Nuclear medicine, Prostate cancer, Systemic radioligand therapy, Theranostics
in
European Urology
volume
85
issue
1
pages
12 pages
publisher
Elsevier
external identifiers
  • pmid:37743194
  • scopus:85172001357
ISSN
0302-2838
DOI
10.1016/j.eururo.2023.09.003
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2023 The Author(s)
id
4c75d921-0ee0-49a2-8ed9-ec7fb06ba0bd
date added to LUP
2024-01-08 14:28:17
date last changed
2024-04-23 10:04:08
@article{4c75d921-0ee0-49a2-8ed9-ec7fb06ba0bd,
  abstract     = {{<p>Background: In prostate cancer (PCa), questions remain on indications for prostate-specific membrane antigen (PSMA) positron emission tomography (PET) imaging and PSMA radioligand therapy, integration of advanced imaging in nomogram-based decision-making, dosimetry, and development of new theranostic applications. Objective: We aimed to critically review developments in molecular hybrid imaging and systemic radioligand therapy, to reach a multidisciplinary consensus on the current state of the art in PCa. Design, setting, and participants: The results of a systematic literature search informed a two-round Delphi process with a panel of 28 PCa experts in medical or radiation oncology, urology, radiology, medical physics, and nuclear medicine. The results were discussed and ratified in a consensus meeting. Outcome measurements and statistical analysis: Forty-eight statements were scored on a Likert agreement scale and six as ranking options. Agreement statements were analysed using the RAND appropriateness method. Ranking statements were analysed using weighted summed scores. Results and limitations: After two Delphi rounds, there was consensus on 42/48 (87.5%) of the statements. The expert panel recommends PSMA PET to be used for staging the majority of patients with unfavourable intermediate and high risk, and for restaging of suspected recurrent PCa. There was consensus that oligometastatic disease should be defined as up to five metastases, even using advanced imaging modalities. The group agreed that [<sup>177</sup>Lu]Lu-PSMA should not be administered only after progression to cabazitaxel and that [<sup>223</sup>Ra]RaCl<sub>2</sub> remains a valid therapeutic option in bone-only metastatic castration-resistant PCa. Uncertainty remains on various topics, including the need for concordant findings on both [<sup>18F</sup>]FDG and PSMA PET prior to [<sup>177</sup>Lu]Lu-PSMA therapy. Conclusions: There was a high proportion of agreement among a panel of experts on the use of molecular imaging and theranostics in PCa. Although consensus statements cannot replace high-certainty evidence, these can aid in the interpretation and dissemination of best practice from centres of excellence to the wider clinical community. Patient summary: There are situations when dealing with prostate cancer (PCa) where both the doctors who diagnose and track the disease development and response to treatment, and those who give treatments are unsure about what the best course of action is. Examples include what methods they should use to obtain images of the cancer and what to do when the cancer has returned or spread. We reviewed published research studies and provided a summary to a panel of experts in imaging and treating PCa. We also used the research summary to develop a questionnaire whereby we asked the experts to state whether or not they agreed with a list of statements. We used these results to provide guidance to other health care professionals on how best to image men with PCa and what treatments to give, when, and in what order, based on the information the images provide.</p>}},
  author       = {{Oprea-Lager, Daniela Elena and MacLennan, Steven and Bjartell, Anders and Briganti, Alberto and Burger, Irene A. and de Jong, Igle and De Santis, Maria and Eberlein, Uta and Emmett, Louise and Fizazi, Karim and Gillessen, Silke and Herrmann, Ken and Heskamp, Sandra and Iagaru, Andrei and Jereczek-Fossa, Barbara Alicja and Kunikowska, Jolanta and Lam, Marnix and Nanni, Cristina and O'Sullivan, Joe M. and Panebianco, Valeria and Sala, Evis and Sathekge, Mike and Sosnowski, Roman and Tilki, Derya and Tombal, Bertrand and Treglia, Giorgio and Tunariu, Nina and Walz, Jochen and Yakar, Derya and Dierckx, Rudi and Sartor, Oliver and Fanti, Stefano}},
  issn         = {{0302-2838}},
  keywords     = {{Molecular hybrid imaging; Nuclear medicine; Prostate cancer; Systemic radioligand therapy; Theranostics}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{49--60}},
  publisher    = {{Elsevier}},
  series       = {{European Urology}},
  title        = {{European Association of Nuclear Medicine Focus 5 : Consensus on Molecular Imaging and Theranostics in Prostate Cancer}},
  url          = {{http://dx.doi.org/10.1016/j.eururo.2023.09.003}},
  doi          = {{10.1016/j.eururo.2023.09.003}},
  volume       = {{85}},
  year         = {{2024}},
}