Management of Glucocorticoid-Induced Hyperglycemia in Cancer Patients: A Feasibility Study

Glucocorticoids are commonly used in the management of patients with hematological and solid malignancies. However, their use may be associated with impaired glycemic metabolism and increased treatment-related morbidity and mortality. This study aimed to examine the feasibility and acceptability of a nurse-led model of care (MOC) for screening and managing glucocorticoid-induced hyperglycemia (GIH) in non-diabetic patients requiring high-dose glucocorticoid (HDG) therapies, as well as patients' and health professionals' experiences with the MOC. This study was a single-site feasibility study. Patients with hematological or oncological malignancies who were >18 years of age, receiving a chemotherapy regimen including HDGs, had no prior diagnosis of diabetes or prediabetes, and were not at the end of life were considered eligible for this study. Participants were recruited from a district hospital's Cancer Centre in Australia. All consenting participants were screened for diabetes and were provided with a blood glucose meter to monitor their blood glucose levels (BGLs) four times a day on the days of glucocorticoid therapy (GT) plus one extra day following GT, for the first four cycles of their treatment, to screen for the presence of GIH. Feasibility and acceptability were assessed using rates of consent, study completion, and staff and patient surveys. Forty-eight percent (35/74) of patients approached consented to participate in the study and had screening tests for preexisting diabetes. None were diagnosed with diabetes. Six out of 35 patients withdrew, and 10/29 patients did not complete the recommended BGL monitoring. Thirteen percent (4/29) of patients developed GIH. The most common reasons for non-participation and study withdrawal were related to the self-monitoring of BGLs. While clinical stakeholders found the MOC feasible and acceptable, the results of this study suggest that alternative methods for encouraging self-monitoring of BGL and monitoring the presence of GIH during high-dose chemotherapy need to be explored to address issues associated with adherence and sustainability.