Marra CA, Frighetto L, Quaia CB, de Lemos ML, Warkentin DI, Marra F, Jewesson PJ. A new ciprofloxacin stepdown program in the treatment of high-risk febrile neutropenia: a clinical and economic analysis.
Pharmacotherapy 2000;
20:931-40. [PMID:
10939554 DOI:
10.1592/phco.20.11.931.35258]
[Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
STUDY OBJECTIVE
To determine treatment outcomes and economic impact of a ciprofloxacin stepdown program for high-risk febrile neutropenic adults from the hospital's perspective.
DESIGN
Unblinded, two-phase, single-center study.
SETTING
Adult leukemia and stem cell transplant unit.
PATIENTS
High-risk adults with febrile neutropenia.
INTERVENTION
Two conditions were analyzed: a multidisciplinary ciprofloxacin stepdown program involving a reduction in parenteral ciprofloxacin dose from 400 to 200 mg (i.v.-i.v.) and conversion to oral ciprofloxacin (i.v.-p.o.) when criteria were met; and no i.v.-i.v. stepdown program.
MEASUREMENTS AND MAIN RESULTS
Forty-six sequential treatment courses were compared with 42 treatment course from 6-month periods in preintervention (P1) and postintervention (P2) phases. Assessed parameters were clinical and microbiologic outcomes, adverse drug reactions (ADRs), and direct medical resource use and costs (1998 $Canadian) for the episode of febrile neutropenia. A decision analytic model was used to map probabilities and costs and to conduct sensitivity analyses. To supplement standard statistical testing, 1,000 bootstrap samples were created, and the mean cost difference was calculated between phases for each sample. Patient demographics, percentage i.v.-p.o. stepdown, and duration of therapy were similar between phases. Clinical success (83% P1, 81% P2), microbiologic eradication (15% P1, 24% P2), and possible ADRs (6% P1, 9% P2) did not differ. Intravenous-to-intravenous dose stepdown occurred in 33% of P2 and no P1 treatment courses (p<0.001). Resource use and costs were similar between phases, although a reduction was seen in the drug's mean total cost/day ($58 P1, $52 P2, p=0.04). There was also a trend toward a decrease in mean total treatment costs ($4,843 P1, $3,493 P2, p=0.08). In 1,000 bootstrap samples, 99.8% showed a cost advantage for P2. The model was robust to sensitivity analyses.
CONCLUSION
This intervention influenced administration of ciprofloxacin without apparent compromise of patient outcomes and resulted in a reduction in total costs of treating febrile neutropenia.
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