Myeloid growth factor utilization in a commercial and Medicare population: Phase 1 of a quality improvement initiative.
242 Background: Some clinical practice guidelines encourage the judicial use of myeloid growth factors (MGFs) in the prevention of chemotherapy-induced febrile neutropenia (FN) because of efficacy and safety concerns. For example, the ASCO guidelines state that a dose reduction of myelosuppressive chemotherapy in patients with incurable disease rather than prescribing a MGF for secondary prophylaxis is a reasonable alternative. Because there is wide variation in MGF prescribing, New Century Health (NCH) conducted a quality improvement analysis of MGF requests in a commercial and Medicare population. The objectives are to: (1) describe the cohort demographics, (2) identify areas of improvement to promote cost-effective use, and (3) measure the economic impact from interventions. Methods: MGF authorization requests for oncology indications to NCH in 2013 were analyzed for cohort demographics: age, weight, tumor diagnosis, and treatment intention (e.g., metastatic/palliative, curative, etc.). Requests were analyzed for concurrent use with chemotherapy, approval status of the request (including reason for withdrawal), and cost saving associated with interventions. Results: There were 7,958 requests for a MGF; 81% were for pegfilgrastim and 19% for filgrastim. Average age of the cohort was 66 years, weight-based dosing (>70 kg) was appropriate in 43% of patients receiving 300 mcg and 72% of patients receiving 480 mcg. MGFs were most commonly requested in: breast (18%), lung (17%), lymphoma (14%), and gynecologic (8%) tumors. 40% of requests were for metastatic/recurrent disease and 38% for curative intent. 6,724 (84%) of requests were authorized based on established-use criteria. The main reason for not authorizing was lack of compendia support for both primary and secondary prophylaxis; this resulted in approximately $3.5 million in cost savings. Conclusions: There is opportunity to improve efficiency of MGFs use in this population through a dose rounding protocol and by promoting chemotherapy dose reductions, as advocated by the ASCO guidelines. Further analysis will assess the concordance of MGF use with guidelines, specifically in regard to chemotherapy regimens and their risk of FN.