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Published in: European Journal of Nuclear Medicine and Molecular Imaging 3/2022

Open Access 01-02-2022 | Prostate Cancer | Original Article

The prognostic power of inflammatory indices and clinical factors in metastatic castration-resistant prostate cancer patients treated with radium-223 (BIO-Ra study)

Authors: Matteo Bauckneht, Sara Elena Rebuzzi, Alessio Signori, Viviana Frantellizzi, Veronica Murianni, Elisa Lodi Rizzini, Manlio Mascia, Valentina Lavelli, Maria Isabella Donegani, Marta Ponzano, Angela Gaudiano, Maria Lina Stazza, Maria Licari, Letizia Cavallini, Viola Laghi, Luca Cindolo, Martina Maggi, Alessandro Sciarra, Paolo Mammucci, Gianmario Sambuceti, Renato Patrizio Costa, Angela Spanu, Giuseppe Rubini, Fabio Monari, Giuseppe De Vincentis, Giuseppe Fornarini

Published in: European Journal of Nuclear Medicine and Molecular Imaging | Issue 3/2022

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Abstract

Purpose

To combine peripheral blood indices and clinical factors in a prognostic score for metastatic castration-resistant prostate cancer (mCRPC) patients treated with radium-223 dichloride ([223Ra]RaCl2).

Patients and methods

Baseline neutrophil-to-lymphocyte ratio (NLR), derived NLR (donor), lymphocyte-to-monocyte ratio (LMR), platelet-to-lymphocyte ratio (PLR), systemic inflammation index (SII), Eastern Cooperative Oncology Group performance status (ECOG PS), Gleason score (GS) group, number of bone metastases, prostate-specific antigen (PSA), alkaline phosphatase (ALP), line of therapy, previous chemotherapy, and the presence of lymphadenopathies were collected from seven Italian centers between 2013 and 2020. Lab and clinical data were assessed in correlation with the overall survival (OS). Inflammatory indices were then included separately in the multivariable analyses with the prognostic clinical factors. The model with the highest discriminative ability (c-index) was chosen to develop the BIO-Ra score.

Results

Five hundred and nineteen mCRPC patients (median OS: 19.9 months) were enrolled. Higher NLR, dNLR, PLR, and SII and lower LMR predicted worse OS (all with a p < 0.001). The multivariable model including NLR, ECOG PS, number of bone metastases, ALP, and PSA (c-index: 0.724) was chosen to develop the BIO-Ra score. Using the Schneeweiss scoring system, the BIO-Ra score identified three prognostic groups (36%, 27.3%, and 36.6% patients, respectively) with distinct median OS (31, 26.6, and 9.6 months, respectively; hazard ratio: 1.62, p = 0.008 for group 2 vs. 1 and 5.77, p < 0.001 for group 3 vs. 1).

Conclusions

The BIO-Ra score represents an easy and widely applicable tool for the prognostic stratification of mCRPC patients treated with [223Ra]RaCl2 with no additional costs.
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Metadata
Title
The prognostic power of inflammatory indices and clinical factors in metastatic castration-resistant prostate cancer patients treated with radium-223 (BIO-Ra study)
Authors
Matteo Bauckneht
Sara Elena Rebuzzi
Alessio Signori
Viviana Frantellizzi
Veronica Murianni
Elisa Lodi Rizzini
Manlio Mascia
Valentina Lavelli
Maria Isabella Donegani
Marta Ponzano
Angela Gaudiano
Maria Lina Stazza
Maria Licari
Letizia Cavallini
Viola Laghi
Luca Cindolo
Martina Maggi
Alessandro Sciarra
Paolo Mammucci
Gianmario Sambuceti
Renato Patrizio Costa
Angela Spanu
Giuseppe Rubini
Fabio Monari
Giuseppe De Vincentis
Giuseppe Fornarini
Publication date
01-02-2022
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Nuclear Medicine and Molecular Imaging / Issue 3/2022
Print ISSN: 1619-7070
Electronic ISSN: 1619-7089
DOI
https://doi.org/10.1007/s00259-021-05550-6

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