Clinical outcomes in patients with metastatic castrate-resistant prostate cancer treated with abiraterone with or without ongoing androgen deprivation therapy: A retrospective case-control study.

INTRODUCTION: Abiraterone and concurrent androgen deprivation therapy (ADT) are used in the treatment of patients with metastatic castration-resistant prostate cancer. Recently, it has been suggested that the use of abiraterone alone (without ADT) may have comparable efficacy to abiraterone with ongoing ADT. Here, we sought to assess the impact of ADT cessation in patients beginning abiraterone for castration-resistant prostate cancer. METHODS: We identified 39 patients at our institution who received abiraterone alone (with discontinuation of ADT) between 2011 and 2022. We then procured a comparable group of 39 patients (matched by age, Gleason score, and prostate-specific antigen [PSA] level) who received abiraterone with ongoing ADT during the same period. We assessed and compared clinical outcomes in the two groups (abiraterone-alone vs. abiraterone-ADT) with respect to PSA response rates, PSA progression-free survival, and overall survival. Results were adjusted using Cox proportional-hazards multivariable models. RESULTS: The median PSA before treatment initiation was 12.7 (range: 0.2-199) ng/mL in the abiraterone-alone group and 15.5 (range: 0.6-212) ng/mL in the abiraterone-ADT group. Use of abiraterone alone adequately suppressed testosterone levels in 35/37 (94.6%) patients. Patients receiving abiraterone alone had a median PSA reduction of 80.2% versus 79.5% in patients receiving abiraterone plus ADT. The median PSA progression-free survival in patients receiving abiraterone alone was 27.4 versus 25.8 months in patients receiving abiraterone plus ADT (hazard ratio [HR] 1.10; 95% confidence interval [CI] 0.65-1.71; p = 0.82). In addition, abiraterone alone was associated with an overall survival of 3.6 versus 3.1 years in patients receiving abiraterone plus ADT (HR 0.90; 95% CI 0.50-1.62; p = 0.72). There were no differences in PFS or OS between groups after performing Cox multivariable regression analyses. CONCLUSION: Use of abiraterone alone was associated with comparable clinical outcomes to patients who received abiraterone together with ADT. Further prospective studies are warranted to evaluate the impact of abiraterone alone on treatment outcomes and cost savings.

Improved postoperative blood glucose control through implementation of clinical pharmacist driven glycemic management model after colorectal surgery.

BACKGROUND: Poor postoperative glycemic control has been linked with higher mortality, cardiovascular complications, stroke, infection, impaired wound healing, and increased length of stay. METHODS: This multicenter, retrospective study of colorectal surgery patients with Type 2 Diabetes Mellitus evaluated the difference in mean blood glucose levels postoperatively in a pharmacist driven glycemic management model vs standard of care. Secondary objectives assessed hyperglycemic events, severe hyperglycemia, hypoglycemia, postoperative infection, and rates of endocrinology consults. RESULTS: 186 patients were included, 120 in the pharmacist driven cohort and 66 in the standard of care. The pharmacist managed cohort demonstrated significantly lower mean blood glucose (133.9 vs 148.3 mg/dL, 95% CI [-17 to -11] p < 0.001), significantly fewer hyperglycemic events (9.6% vs 20.5%, p < 0.0001), and non-significant reduction of hypoglycemic events (0.7% vs 1.2%, p = 0.1443). CONCLUSIONS: Expansion of the postoperative care team by utilizing pharmacists to manage postoperative blood glucose resulted in improved glycemic control.