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Clinical Trial
Journal Article
Multicenter Study
Declining brachytherapy utilization for high-risk prostate cancer-Can clinical pathways reverse the trend?
Brachytherapy 2018 November
PURPOSE: Although external beam radiation therapy (EBRT) plus a brachytherapy boost (BB) offers a 20% improvement in biochemical progression-free survival compared with dose-escalated EBRT alone for men with intermediate and high-risk prostate cancer, population studies show a concerning decline in BB utilization.
METHODS: We modified our clinical pathway (CP) in January 2016 to indicate EBRT with BB as first-choice modality for high-risk prostate cancer, based on preliminary findings of Androgen Suppression Combined with Elective Nodal and Dose-Escalated Radiation Therapy. A retrospective review was performed on 659 patients with high-risk prostate cancer treated with definitive intent EBRT ± BB within a network of 19 sites between December 2011 and July 2017. χ2 test was used to determine changes in practice pattern before vs. after CP modification.
RESULTS: Before CP modification, 25.2% of patients were planned for BB, compared with 45.4% afterward (p < 0.001). Among 23 nonbrachytherapist physicians, utilization of BB increased from 3.4% to 14.8% (p < 0.001) after CP modification. Among nine brachytherapists, utilization increased from 46.4% to 55.6% (p = 0.120). Among patients treated by a nonbrachytherapist who did not receive BB, the reason was physician preference in 59.7%, patient preference in 19.9%, and other in 20.4%.
CONCLUSION: Based on recent evidence suggesting improved biochemical progression-free survival with use of BB for high-risk prostate cancer, we modified our CP, after which we observed increased use of a BB across a network, especially among physicians who do not perform brachytherapy. However, physician preference remains the most significant factor in the nonutilization of BB. New mechanisms are needed to overcome this barrier.
METHODS: We modified our clinical pathway (CP) in January 2016 to indicate EBRT with BB as first-choice modality for high-risk prostate cancer, based on preliminary findings of Androgen Suppression Combined with Elective Nodal and Dose-Escalated Radiation Therapy. A retrospective review was performed on 659 patients with high-risk prostate cancer treated with definitive intent EBRT ± BB within a network of 19 sites between December 2011 and July 2017. χ2 test was used to determine changes in practice pattern before vs. after CP modification.
RESULTS: Before CP modification, 25.2% of patients were planned for BB, compared with 45.4% afterward (p < 0.001). Among 23 nonbrachytherapist physicians, utilization of BB increased from 3.4% to 14.8% (p < 0.001) after CP modification. Among nine brachytherapists, utilization increased from 46.4% to 55.6% (p = 0.120). Among patients treated by a nonbrachytherapist who did not receive BB, the reason was physician preference in 59.7%, patient preference in 19.9%, and other in 20.4%.
CONCLUSION: Based on recent evidence suggesting improved biochemical progression-free survival with use of BB for high-risk prostate cancer, we modified our CP, after which we observed increased use of a BB across a network, especially among physicians who do not perform brachytherapy. However, physician preference remains the most significant factor in the nonutilization of BB. New mechanisms are needed to overcome this barrier.
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