Safety of combined exemestane and everolimus in postmenopausal hormone receptor positive metastatic breast cancer patients - a retrospective analysis

Jenny Gilchrist, J. Todd, R. Kefford

Research output: Contribution to journalMeeting abstract


Background: Combination therapy with exemestane and everolimus prolongs progression-free survival in patients with metastatic breast cancer but carries significant and novel toxicities with up to 19% of patients ceasing treatment due to adverse events.

Aims: To assess the rate of adverse events in metastatic breast cancer patients commencing exemestane and everolimus combination treatment in the Western Sydney Oncology Network.

Methods: Over a period of 12 months, thirty-four women on combination therapy were identified. Adverse events were identified as documented in the medical records. The records held by the Clinical Nurse Consultant were analysed for additional adverse events. Maximum follow-up is 15 months.

Results: In a more heavily pre-treated population than in previously published trials, 41% of patients ceased therapy due to toxicities associated with treatment and 60% patients ceased due to progressive disease. The incidence of all grades of stomatitis was 56% with grade 3/4 toxicity 6%. The incidence of pneumonitis was 12%. A total of 56% patients required dose interruptions or reductions whilst on combination therapy.

Conclusions: In a more heavily pretreated population of metastatic breast cancer patients than in the reported Bolero-2 study, more patients ceased treatment due to toxicities. Excepting this, our data was similar to that in the previously reported Bolero-2 Trial.
Original languageEnglish
Pages (from-to)176-176
Number of pages1
JournalAsia-Pacific Journal of Clinical Oncology
Issue numberS8
Early online date19 Nov 2014
Publication statusPublished - Dec 2014

Cite this