Pharmacists' practices and views regarding management of sexual health in patients with cancer.

INTRODUCTION: Sexual health issues associated with cancer can significantly impact patients' psychosocial well-being and overall quality of life. These issues are frequently medication-related, placing pharmacists in an opportune position to manage sexual health concerns in patients with cancer. Currently, no literature exists exploring pharmacists' practices related to the management of sexual health in oncology patients. METHODS: An anonymous, descriptive, cross-sectional, web-based survey was conducted to elicit pharmacists' views and practices regarding managing sexual health in oncology patients. Pharmacists practicing in Canada who provide care to adult malignant hematology or oncology patients were eligible to participate. The survey was disseminated through the Canadian Association of Pharmacy in Oncology and through informal oncology pharmacy practitioner networks. RESULTS: Of the 102 pharmacists who participated, 96 completed the survey in its entirety. Most respondents were female, practiced in Alberta, and primarily saw oncology patients in outpatient cancer facilities. Although 85% of participants felt pharmacists should be involved in giving patients an opportunity to discuss sexual health, only 8% reported managing sexual health in at least 50% of their oncology patients. The most commonly agreed upon barriers to this were presence of family members and friends at appointments, lack of knowledge or training, limited time, and the belief that sexual health is not applicable to all oncology patients. CONCLUSIONS: This study explored pharmacists' views and practices regarding managing sexual health in patients with cancer. Several barriers were identified, which may aid in future development of resources to assist pharmacists in routinely addressing sexual health in oncology patients.

The clinical significance of QT prolongation associated with tamoxifen: A review of the literature.

Objective To review the literature discussing QT prolongation associated with the use of tamoxifen in order to evaluate the clinical significance. Data sources A search of PubMed (1946 to 2017), MEDLINE (1946 to 2017) and EMBASE (1947 to 2017) was performed using a combination of the following search terms: tamoxifen, estrogen antagonist, selective estrogen receptor modulator, QT prolongation, QT interval, long QT syndrome and torsades de pointes. All searches were limited to human subjects. Reference lists of the literature found were also reviewed but did not reveal any further articles. Study selection Articles reviewed were relating to humans only and included clinical trials and case reports that mentioned QT prolongation in association with the use of tamoxifen. Data synthesis It can be common for patients on tamoxifen to also be on a number of different medications being used to treat comorbid medical conditions. Such combinations of medications increase the potential risk for drug interactions, such as drug-induced QT prolongation. Tamoxifen is often flagged by tertiary drug information sources as a drug with indeterminate effects on the QT interval. However, the risk may be elevated when combined with other QT-prolonging agents. A total of five publications were identified, including two phase I clinical trials and three case reports, which discussed the association between tamoxifen and QT prolongation. Conclusions Tertiary drug information sources identify tamoxifen as an agent that may cause QT prolongation when used in combination with other QT-prolonging agents. However, based on the limited number of published reports found, it would suggest that the use of tamoxifen concurrently with other agents known to prolong the QT interval is likely to be of low risk for causing a clinically significant QT-prolonging event, especially at a dose of 20 mg daily.