Mutational profile of hereditary breast and ovarian cancer - Establishing genetic testing guidelines in a developing country.

PURPOSE: Because many countries lack the capacity to follow the international guidelines for genetic testing, we suggest the specific approach for establishing local genetic testing guidelines that could be applied in developing countries. We focus on hereditary breast (BC) and ovarian cancer (OC) in Serbia. METHODS: From the cohort of 550 persons who were referred for genetic counseling at the Institute for Oncology and Radiology of Serbia, 392 were selected. Personal and family histories were collected and germline DNA was sequenced with NGS in a panel of 20 genes. RESULTS: Pathogenic (PV) and likely-pathogenic variants (LPV) were detected in 8 genes with the frequency of 23.7%. The most frequent were in BRCA1(7.6%), BRCA2(4.8%), PALB2(4.1%) and CHEK2(3.8%). They were also detected in ATM(1.8%), NBN(0.8%), TP53(0.5%) and RAD51C(0.3%). Whereas high carrier probability (CP), bilateral BC, BC and OC in the same patient and family history (FH) of BC/OC, were the strongest predictors for BRCA1/2 PV/LPV, lower CP values and early age of BC onset without FH were associated with higher frequency of PALB2 and CHEK2 PV/LPV. CONCLUSIONS: Population specific studies to identify specific mutational patterns and predictors of PV/LPV should be conducted in order to make scientifically sound and cost-effective guidelines for genetic testing in developing countries.

Oral administration of antineoplastic agents: the challenges for healthcare professionals.

Recent progress in cancer treatment has increased the use of oral antineoplastic agents. It is now estimated that at least 25% of the existing antineoplastic agents are planned to be used as oral agents and this mode of administration is likely to increase in the coming years. The use of oral anti- neoplastic agents affects many aspects of cancer treatment, and despite advantages, it also poses challenges to health care professionals and patients, many of which refer to the adherence and safety. Low patient adherence demonstrates the need for better management and monitoring of patients on oral antineoplastic agents. Patient education is essential to maintain adherence to oral antineoplastic therapy, promoting a better understanding of the patient treatment regimen, treatment goals and potential side-effects, patient safety and implementation of self-care measurement. This article discusses the above-mentioned challenges, as well as the possibilities of patient and family education to improve adherence, outcomes of treatment and quality of life, and offers recommendations for practice and further research.