Management of Ductal Carcinoma In Situ: An Ontario Health (Cancer Care Ontario) Clinical Practice Guideline.

(1) Background: To make recommendations on the most effective therapy options for Ductal Carcinoma of the Breast (DCIS) patients; (2) Methods: MEDLINE, EMBASE, Cochrane Library, PROSPERO databases, and main relevant guideline websites were searched. Draft versions of the guideline went through formal internal and external reviews, with a final approval by the Program in Evidence Based Care and the DCIS Expert Panel. The Grading of Recommendations, Assessment, Development, and Evaluation approach was followed; (3) Results: Based on the current evidence from the systematic review and this guideline authors' clinical opinions, initial draft recommendations were developed to improve the management of patients with DCIS.

Genetics Adviser: The development and usability testing of a new patient digital health application to support clinical genomic testing.

Purpose: Increasing demand for genomic testing coupled with genetics workforce shortages has placed unsustainable pressure on standard models of care. Digital tools can offer improved access, efficiency, and cost savings. We created a patient-facing digital health application to support genomic testing.

Clinical Utility of Genomic Sequencing for Hereditary Cancer Syndromes: An Observational Cohort Study.

Purpose: Genomic sequencing (GS) is increasingly used to improve diagnoses and inform targeted therapies. GS can also be used to identify the 10% of cancer patients with an underlying hereditary cancer syndrome (HCS), who can benefit from surveillance and preventive surgery that reduce morbidity/mortality. However, the evidence on clinical utility of GS for HCS is limited: we aimed to fill this gap by assessing yield of all cancer results and associated recommendations for patients undergoing GS for HCS.

Circulating Endothelial Progenitor Cells in Patients with Established Cardiovascular Disease Treated with PCSK9 Monoclonal Antibodies.

Background: The role of circulating endothelial progenitor cells (cEPCs) in vascular repair and their association to cardiovascular protection is well established.

Objectives: We examined the effect of proprotein convertase subtilisin kexin type 9 monoclonal antibodies (PCSK9 mAb) on cEPCs in adults with hypercholesterolemia and cardiovascular disease, aiming to establish a pleotropic class effect.

Methods: Non-interventional prospective study in patients with cardiovascular disease treated with either evolocumab or alirocumab.

The incidence of pancreatic cancer in women with a BRCA1 or BRCA2 mutation.

Background: The lifetime risk of pancreatic cancer in women with a germline mutation in BRCA1 and BRCA2 is not well established. In an international prospective cohort of female carriers of BRCA1 and BRCA2 mutations, the cumulative incidence of pancreatic cancer from age 40 until 80 years was estimated.

Methods: A total of 8295 women with a BRCA1 or BRCA2 mutation were followed for new cases of pancreatic cancer.