No abstract

Inactivation of the cyclin-dependent kinase inhibitor 2A (CDKN2A) gene is considerably more frequent in squamous cell lung cancer (SqCLC) than in other subtypes of lung cancer and may be a promising target for this histology. Here, we present the course of diagnosis and treatment of a patient with advanced SqCLC, harboring not only CDKN2A mutation but also PIK3CA amplification, Tumor Mutational Burden-High (>10 mutations/megabase), and a Tumor Proportion Score of 80%. After disease progression on multiple lines of chemotherapy and immunotherapy, he responded favorably to treatment with the CDK4/6i Abemaciclib and later achieved a durable partial response to immunotherapy rechallenge with a combination of anti-PD-1 and anti-CTLA-4, nivolumab, and ipilimumab.

Background: Arginine is considered a semi-essential amino acid in healthy adults and the elderly. This amino acid seems to improve the immune system, stimulate cell growth and differentiation, and increase endothelial permeability, among other effects. For those reasons, it has been theorized that arginine supplementation may be used as an adjuvant to conventional cancer therapy treatments. Objective: This review aims to evaluate the existing knowledge of the scientific community on arginine supplementation in order to improve the efficacy of current cancer treatment. Results: Despite the continued efforts of science to improve treatment strategies, cancer remains one of the greatest causes of death on the planet in adults and elderly people. Chemo and radiotherapy are still the most effective treatments but at the cost of significant side effects. Conclusion: Thus, new therapeutic perspectives have been studied in recent years, to be used in addition to traditional treatments or not, seeking to treat or even cure the various types of cancer with fewer side effects.

Targeted and immunotherapy have revolutionized cancer treatment. They safely substitute for traditional chemotherapy in a significant and growing number of malignancies. In this article, we review the United States Food and Drug Administration (FDA) -approved targeted and immunotherapies, currently used in oncology and compare their safety and efficacy in young versus geriatric and frail sub-population. The results suggest an overall comparable, if not superior efficacy in several tumor types, with acceptable toxicities across the board compared to cytotoxic chemotherapy and a favorable analysis in the comparison to the results observed in the younger population. The very decision to place elderly patients on exclusive palliative care can no longer be supported based on age or frailty alone. The historical concept of medical oncologists leaning for palliative treatments for these patients needs to be revisited.