ArticleThe Prostate2026
The Prognostic Significance of Radiographic Progression Without PSA Progression in Patients With Metastatic Hormone-Sensitive Prostate Cancer Treated With First-Line ARPI Therapy.
Article in The Prostate, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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28 authors.
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Abstract
backgroundRadiographic progression (RP) without prostate-specific antigen (PSA) elevation has emerged as a clinically important pattern in the androgen receptor pathway inhibitors (ARPI) era, but its prevalence and prognostic significance in real-world metastatic hormone-sensitive prostate cancer (mHSPC) cohorts remain unclear.
objectiveTo assess the prevalence and prognostic implications of RP alone progression in mHSPC patients treated with first-line ARPIs.
methodsWe retrospectively analyzed 518 mHSPC patients treated with abiraterone acetate plus prednisolone, enzalutamide, or apalutamide. PSA progression was defined using PCWG3 criteria. Patients were categorized into PSA progression or RP alone progression groups, and clinical outcomes were compared.
resultsAmong 169 patients who developed castration-resistant prostate cancer (CRPC), 34 (20.1%) experienced RP alone. RP alone patients had significantly worse overall survival compared to those with PSA progression (median 21 vs. 39 months, p = 0.007), despite exhibiting deeper biochemical responses-PSA nadir (0.055 vs. 0.86 ng/mL, p < 0.001) and a higher rate of PSA nadir < 0.2 ng/mL (61.8% vs. 27.4%, p < 0.001). The baseline characteristic differing between groups was CHAARTED volume classification; high volume disease was markedly more common in RP alone patients (94.1% vs. 77.8%). In univariate and multivariate analyses of the overall cohort, CHAARTED high volume disease was identified as an independent risk factor for RP alone (HR 10.3, 95% CI 1.20-89.3; p = 0.034).
conclusionRP alone progression occurred in approximately one-fifth of patients and was associated with significantly poorer survival despite excellent PSA responses, underscoring the limitation of PSA-based monitoring and supporting routine imaging for early detection of PSA-incongruent disease progression in mHSPC.
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