Context: With new treatment strategies approved in metastatic hormone-sensitive prostate cancer (mHSPC), heterogeneity across trials hinders the physicians' choice for first-line treatment. Objective: We conducted a systematic review and network meta-analysis to assess the efficacy of currently approved treatments for mHSPC stratifying patients according to their disease burden (high- vs. low-volume as per CHAARTED criteria) and onset of metastatic disease (synchronous vs. metachronous). Intervention: Eleven randomized controlled trials (RCTs) published until October 30, 2024 were included. Treatment regimens were grouped as triplets for combinations of docetaxel, androgen receptor pathway inhibitors (ARPIs) and androgen-deprivation therapy (ADT), separate doublets for docetaxel plus ADT, ARPI plus ADT, or monotherapy for ADT alone. Outcome measurements and statistical analysis: Overall survival (OS) and radiographic progression-free survival (rPFS) outcomes were collected. OS as primary endpoint, and rPFS as secondary endpoint, were analyzed separately in high- and low-volume patients. Additional subgroup analyses accounted for timing of metastases categorized as high-volume/synchronous, high-volume/metachronous, low-volume/synchronous, and low-volume/metachronous disease. Evidence synthesis: Triplet combinations prolonged significantly OS and rPFS in high-volume disease (P-score 0.99), and high-volume/synchronous disease (P-score 0.99). ARPI/ADT doublets performed best in low-volume patients (P-score 0.94), and low-volume/metachronous (P-score 0.99). In the high-volume/metachronous population, triplets, and doublets were equally effective. Conclusions: The results provide collective evidence for treatment selection based on disease volume and timing of metastasis with strongest survival benefits of triplets for high-volume/synchronous mHSPC patients and of ARPI doublets for low-volume disease.
Best therapeutic approach in metastatic hormone-sensitive prostate cancer based on disease volume: a systematic review and network meta-analysis
Banna, Giuseppe Luigi;De Giorgi, Ugo;Montorsi, Francesco;Di Maio, Massimo;
2026-01-01
Abstract
Context: With new treatment strategies approved in metastatic hormone-sensitive prostate cancer (mHSPC), heterogeneity across trials hinders the physicians' choice for first-line treatment. Objective: We conducted a systematic review and network meta-analysis to assess the efficacy of currently approved treatments for mHSPC stratifying patients according to their disease burden (high- vs. low-volume as per CHAARTED criteria) and onset of metastatic disease (synchronous vs. metachronous). Intervention: Eleven randomized controlled trials (RCTs) published until October 30, 2024 were included. Treatment regimens were grouped as triplets for combinations of docetaxel, androgen receptor pathway inhibitors (ARPIs) and androgen-deprivation therapy (ADT), separate doublets for docetaxel plus ADT, ARPI plus ADT, or monotherapy for ADT alone. Outcome measurements and statistical analysis: Overall survival (OS) and radiographic progression-free survival (rPFS) outcomes were collected. OS as primary endpoint, and rPFS as secondary endpoint, were analyzed separately in high- and low-volume patients. Additional subgroup analyses accounted for timing of metastases categorized as high-volume/synchronous, high-volume/metachronous, low-volume/synchronous, and low-volume/metachronous disease. Evidence synthesis: Triplet combinations prolonged significantly OS and rPFS in high-volume disease (P-score 0.99), and high-volume/synchronous disease (P-score 0.99). ARPI/ADT doublets performed best in low-volume patients (P-score 0.94), and low-volume/metachronous (P-score 0.99). In the high-volume/metachronous population, triplets, and doublets were equally effective. Conclusions: The results provide collective evidence for treatment selection based on disease volume and timing of metastasis with strongest survival benefits of triplets for high-volume/synchronous mHSPC patients and of ARPI doublets for low-volume disease.
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