Publications by authors named "S Crabb"
Article Synopsis
- Taxane-based chemotherapy, specifically paclitaxel, is commonly used for treating platinum- and immunotherapy refractory metastatic urothelial carcinoma (mUC), but survival outcomes are generally poor and biomarkers for predicting outcomes are lacking.
- A study was conducted using whole-transcriptome profiles from patients enrolled in a trial (PLUTO) to evaluate gene signatures related to survival, focusing on factors like immuno-oncology, angiogenesis, and genome instability.
- Results indicated that patients with high expressions of genome instability and evading growth suppressors experienced significantly better progression-free survival (PFS) and overall survival (OS), while activation of angiogenesis was associated with worse outcomes across both treatment cohorts.
Background: Poly (ADP-ribose) polymerase (PARP) inhibitors have activity in various cancers. Metastatic urothelial carcinoma (MUC) is platinum sensitive and a subset harbour DNA repair gene alterations.
Objective: To assess evidence for efficacy and safety of PARP inhibition for MUC.
Background: Cervical cancer is the fourth most common cancer in women, with an estimated 342,000 deaths worldwide in 2020. Current standard of care in the UK for locally advanced cervical cancer is concurrent chemoradiotherapy with weekly cisplatin, yet 5-year overall survival rates are only 65% with a distant relapse rate of 50%. Inhibitors of Apoptosis Proteins (IAPs) are often overexpressed in cancer cells and associated with tumour progression and resistance to treatment.
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- The study investigates the effectiveness of the AKT inhibitor capivasertib when combined with enzalutamide in patients with metastatic castration-resistant prostate cancer (mCRPC) who did not respond well to prior treatments with abiraterone acetate and docetaxel.
- Conducted as a double-blind, randomized phase 2 trial with 100 men, the primary focus was on the composite response rate, which showed no significant improvement with the combination treatment compared to placebo.
- Analysis revealed that patients with PTEN loss had poorer overall survival regardless of treatment, with common side effects including diarrhea and fatigue, indicating that while the combination was tolerable, it did not enhance treatment outcomes.
Article Synopsis
- - The ARON-2 study investigated the real-world effectiveness of pembrolizumab, an immune checkpoint inhibitor, in patients with advanced urothelial carcinoma who had progression after platinum-based chemotherapy, utilizing data from 836 patients across 88 institutions in 23 countries.
- - Results showed median overall survival (OS) of 10.5 months and overall response rate (ORR) of 31%; those who progressed after initial chemotherapy (cohort A) had lower OS (9.1 months) compared to those who recurred within a year post-chemotherapy (cohort B) with 14.6 months OS.
- - Multivariate analysis identified several prognostic factors affecting OS and progression-free survival (PFS),