Treatment patterns and outcomes for younger patients with metastatic castration-resistant prostate cancer (mCRPC); An Australian prospective registry study
Colin Williams , Andrisha-Jade Inderjeeth , Wei Hong , Jane McKenzie , Angelyn Anton , Andrew Weickhardt , Shirley Wong , Jeremy Shapiro , Phillip Parente , Jeffrey Goh , Javier Torres , Annabel Smith , Anthony Joshua , Stephen Brown , Christopher Steer , Julie Johns , Peter Gibbs , Ben Tran , Arun A. Azad
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引用次数: 0
Abstract
Introduction and Objectives
There is an increasing incidence of cancer in younger patients, including prostate cancer.
Cancers developing in younger patients are reported to have a more aggressive phenotype. There is a need to examine younger patients with metastatic castration-resistant prostate cancer (mCRPC).
Methods
Analysis of the prospectively collected, multisite, electronic Prostate Cancer Australian Database (ePAD) was conducted to identify all mCRPC patients enrolled between June 2016 and March 2024. We defined patients diagnosed aged < 55 years as younger patients (YP) and compared their characteristics, treatment patterns and outcomes to the other patients aged ≥ 55 years (OP).
Results
Of 915 patients with mCRPC, 59 (6%) were YP. De-novo metastatic presentation, Gleason score, presence of liver metastasis and PSA doubling time at mCRPC were similar between YP and OP. In the mCRPC setting, first line treatment with docetaxel (19% YP vs. 21% OP; P = .72) and ARPI (68% YP vs. 74% OP; P = .31) was also similar. YP were more likely to receive ≥ 3 lines of therapy for mCRPC (37% YP vs. 23% OP; P = .016). There was no significant difference in overall survival from start of first line therapy (median 41.9 m YP vs. 35.1 m OP; HR 0.73; 95% CI, 0.47-1.15; P = .17) or time-to-treatment discontinuation for ARPI (median 15.8 m YP vs. 14.9 m OP; HR 0.93; 95% CI, 0.61-1.42; P = .75). Age < 55 was not independently associated with survival on multivariable analysis (HR 0.82; 95% CI, 0.52-1.29; P = .38).
Conclusion
Young patients with prostate cancer who go on to develop mCRPC do not appear to have distinct clinical outcomes to other patients.
期刊介绍:
Clinical Genitourinary Cancer is a peer-reviewed journal that publishes original articles describing various aspects of clinical and translational research in genitourinary cancers. Clinical Genitourinary Cancer is devoted to articles on detection, diagnosis, prevention, and treatment of genitourinary cancers. The main emphasis is on recent scientific developments in all areas related to genitourinary malignancies. Specific areas of interest include clinical research and mechanistic approaches; drug sensitivity and resistance; gene and antisense therapy; pathology, markers, and prognostic indicators; chemoprevention strategies; multimodality therapy; and integration of various approaches.