Associate Professor Alexander is a pharmacist-researcher dedicated to enhancing cancer care by optimising medication use, improving treatment outcomes, and reducing toxicities. She serves as Deputy Director of Pharmacy (Quality and Research) at Peter MacCallum Cancer Centre and is an Associate Professor at The University of Melbourne. With expertise in oncology pharmacy, thoracic cancers, clinical trials, and population studies, her research focuses on biomarker-driven therapies, pharmacogenomics, longitudinal registries, and biobanking.

Associate Professor Alexander leads programs integrating clinical, health services, and translational studies to advance personalised medicine for supportive care and leverage real-world data to inform cancer research. She is the lead investigator for the multisite PRECISION trial on pharmacogenomic optimisation of cancer medicines and co-leads the Australasian Thoracic Cancers Longitudinal Cohort Study and Biobank (AURORA).