A Pilot Study of the Combination of 5-Azacitidine and All-trans Retinoic Acid in Biochemically Recurrent Prostate Cancer.

Purpose: Biochemical recurrence (BCR) after definitive local therapy remains a major clinical challenge in prostate cancer (PCa), with heterogeneous disease trajectories and few established strategies to delay further progression without prolonged androgen deprivation. This pilot study evaluated the combination of 5-azacitidine (AZA) and all-trans retinoic acid (ATRA) to induce tumor dormancy and delay clinical progression in patients with BCR.

Experimental Design: In a prospective, open-label, randomized, single-institution pilot trial, patients with BCR of PCa and no recent hormonal or definitive therapy received low-dose AZA and sequential ATRA.

HER2 and urothelial carcinoma: current understanding and future directions.

Human epidermal growth factor receptor 2 (HER2) has emerged as a crucial biomarker across various cancers, shaping therapeutic strategies and prognostic evaluations. In urothelial carcinoma, HER2 positivity rates can reach up to 68% when HER2-low tumours (immunohistochemistry 1+) are included in the analysis. HER2 overexpression and ERBB2 genomic alterations have been linked to advanced disease stages and poor outcomes in urothelial carcinoma.

Exploratory subgroup analyses of EV-302: a phase III global study to evaluate enfortumab vedotin in combination with pembrolizumab versus chemotherapy in previously untreated locally advanced or metastatic urothelial carcinoma.

Background: In the phase III EV-302 study (NCT04223856), enfortumab vedotin (EV) plus pembrolizumab (P) demonstrated superior efficacy and safety versus platinum-based chemotherapy in patients with previously untreated locally advanced/metastatic urothelial cancer (la/mUC). We report the efficacy of EV+P in prespecified subgroups, including those defined by cisplatin eligibility status, the presence or absence of liver metastases, and metastatic disease sites.

Methods: Patients with previously untreated la/mUC were randomly assigned 1 : 1 to receive either EV 1.

Adjuvant nivolumab in muscle-invasive urothelial carcinoma: exploratory biomarker analysis of the randomized phase 3 CheckMate 274 trial.

Nivolumab monotherapy has been approved for the adjuvant treatment of adult patients with urothelial carcinoma who are at high risk of recurrence after undergoing radical resection of urothelial carcinoma based on results of the phase 3 CheckMate 274 trial, in which adjuvant nivolumab versus placebo demonstrated improvement in the primary endpoint of disease-free survival (DFS) in high-risk muscle-invasive urothelial carcinoma (MIUC). Identification of biomarkers associated with treatment outcomes can help refine patient selection, and inform on the immunobiology of disease. To assess the relevance of key biomarkers in the adjuvant MIUC setting, extensive exploratory analyses of tumor biomarkers, including associations with DFS, were performed.

Pathogenic Genomic Alterations in Circulating Tumor DNA Predict Overall Survival in Men with Metastatic Castrate-resistant Prostate Cancer.

Background And Objective: Although validated prognostic models exist for men with metastatic castration-resistant prostate cancer (mCRPC), current tools do not incorporate genomic biomarkers such as circulating tumor DNA (ctDNA) aneuploidy or pathogenic genetic alterations (PGAs). This study aimed to estimate the prevalence of PGAs in ctDNA, assess their correlation with ctDNA aneuploidy fraction, and evaluate their association with overall survival (OS). Additionally, we developed and validated a clinical-genetic (CG) model to predict OS.