BRCA2 mutation

Regarding "druggable markers," DLL3 was expressed in 66% of tumors and PD-L1 in 17.4%. Detailed analyses of different prognostic and predictive markers are needed to better understand EP-SCNC biology and create more personalized therapy to improve patient prognosis.

Our comprehensive findings underscore the clinical significance of BRCA1/2 mutations in gastric cancer, advocating for further research to elucidate their mechanistic implications and therapeutic opportunities.

We conclude that low dose DNA methyltransferase inhibition can cooperate with low dose PARP inhibition to increase DNA damage predominantly in cells with HRR deficiencies, ultimately producing more cell death than in HRR proficient tumors. We predict that clinical benefit will more likely be apparent in patients with DNA repair defective tumors and are focusing clinical exploration of this drug combination in these patients, with the goals of enhancing tumor cell death at minimal toxicities.

Yet, published research on intensive screening of women at high breast cancer risk has largely ignored these outcomes, leaving patients, providers, and guideline developers lacking the evidence needed for best practice. Outcomes research is both feasible and urgently needed to inform care decisions and health policy for this patient population.

Evidence was reviewed from controlled clinical trials in which eribulin, vinorelbine, capecitabine, gemcitabine, gemcitabine plus carboplatin, fam-trastuzumab-deruxtecan, sacituzumab govitecan, olaparib, and talazoparib were used in the second-line treatment for metastatic breast cancer, either as study drugs or as comparators. Exploratory data for fam-trastuzumab-deruxtecan suggest a survival benefit in human epidermal growth factor receptor 2-low, hormone-receptor-negative patients, but further solid evidence is required. Other chemotherapies with lower European Society for Medical Oncology-Magnitude of Clinical Benefit Scale scores may continue to be useful in highly selected patients.

P2, N=23, Active, not recruiting, Memorial Sloan Kettering Cancer Center | Recruiting --> Active, not recruiting

P=N/A, N=200, Recruiting, Abramson Cancer Center at Penn Medicine | Trial completion date: May 2028 --> May 2030 | Trial primary completion date: May 2026 --> May 2028

This review provides a comprehensive overview of BRCA1/2 mutations testing in PC, focusing on the germline and somatic mutations frequencies and the technical approach for their identification. A revision of the main data reported in the literature regarding BRCA1/2 mutations identification will be presented, highlighting the critical issue for the detection both in formalin fixed paraffin embedded (FFPE) and blood samples.

We also highlight the potential of small molecules e.g. p53 activators like XI-011, Tenovin-1, and Nutlin-3a for the treatment of breast and ovarian cancers. The therapeutic efficacy of natural compounds in amelioration of these two types of cancers is also discussed.

While providing survival benefits to previously progressed mCRPC patients presenting deleterious BRCA1/2 gene mutations, PARP inhibitors are not cost-effective and require major price reductions to reach local WTP thresholds.

In patients with mCRPC, we did not find a statistical difference in anti-tumor activity after receiving platinum chemotherapy among patients harboring a pathogenic HRR alterations compared to patients without a HRR alteration. Additionally, we were unable to detect an association between BRCA1/2 mutation status and response to platinum chemotherapy. Platinum chemotherapy, however, had clinically meaningful activity in a subset of patients regardless of HRR alteration status. Additional studies are warranted using genomic data to predict sensitivity to platinum chemotherapy.

In a pre-selected population with HRD according to a genetic test, RAD51 testing identifies patients with different pCR rates under PARPi or platinum-based therapies. Future biomarker-driven studies should consider this information to refine stratification factors and to improve patient selection.