Systemic Therapy for Stage I-III Anal Squamous Cell Carcinoma: ASCO Guideline.

Purpose: To provide evidence-based guidance for clinicians who treat patients with stage I-III anal cancer.

Methods: A systematic review of the literature conducted by the Minnesota Evidence-based Practice Center provided the evidence base for this guideline. An ASCO Expert Panel reviewed this evidence and came to consensus on a set of evidence-based recommendations.

Clonal hematopoiesis of indeterminate potential (CHIP) and its association with treatment outcomes and adverse events in patients with solid tumours.

Clonal hematopoiesis of indeterminate potential (CHIP) is the clonal expansion of hematopoietic stem cells from somatic mutations. It is a common incidental finding in cell-free DNA (cfDNA). We investigated the incidence of CHIP in cfDNA from patients with solid tumours and explored its association with treatment outcomes and adverse events.

Plasma arginine as a predictive biomarker for outcomes with immune checkpoint inhibition in metastatic colorectal cancer: a correlative analysis of the CCTG CO.26 trial.

Background: Nutritional stress is a mechanism that allows tumor cells to evade the immune system. Arginine (ARG), an amino acid involved in immunomodulation, aids in regulating T-lymphocyte cell activity and the antitumor response. ARG deficiency in the tumor microenvironment can impair T-cell response while ARG supplementation may promote antitumor immune activity.

Kinetic Profiling of Mutations With Circulating Tumor DNA in the Canadian Cancer Trials Group CO.26 Trial Suggests the Loss of Mutations in Neo--Wildtype Metastatic Colorectal Cancer Is Transient.

Purpose: In metastatic colorectal cancer (mCRC), mutations drive resistance to anti-epidermal growth factor receptor antibodies. It is unclear whether mutations ever become clonally undetectable.

Methods: CO.