Skip to main content

Economic evaluation of weekly epoetin alfa versus biweekly darbepoetin alfa for chemotherapy-induced anaemia: evidence from a 16-week randomised trial.

Publication ,  Journal Article
Reed, SD; Radeva, JI; Daniel, DB; Mody, SH; Forlenza, JB; McKenzie, RS; Schulman, KA
Published in: Pharmacoeconomics
2006

INTRODUCTION: A 16-week, open-label, multicentre, randomised trial of weekly epoetin alfa 40 000 units versus biweekly darbepoetin alfa 200microg among 358 patients with solid-tumour cancers and chemotherapy-induced anaemia demonstrated superior haematological outcomes with epoetin alfa. We sought to compare resource use, costs and clinical outcomes between treatment groups and report the results using a cost-consequences framework. METHODS: Pre-specified methods were used to assign costs (US dollars, year 2004-5 values) to medical resources and patient time using a societal perspective. Costs for inpatient care, outpatient care and physician services were based on US Medicare reimbursement rates. Indirect costs assigned to patient time spent receiving study medication were based on the mean hourly wage in the US. In the base-case analysis, the average wholesale price was used to assign costs to medications. Clinical outcomes included all haemoglobin levels and transfusions recorded throughout the trial. Sensitivity analyses were performed to evaluate the impact of different costing methods, cost sources, perspectives and methods to assign haemoglobin values following a blood transfusion. RESULTS: Over a mean follow-up duration of 11.8 weeks, the average cost of study medications and their administration was the single largest component of total costs and was similar between groups (epoetin alfa 5979 US dollars and darbepoetin alfa 5935 US dollars, difference 44 US dollars; 95% CI -590, 692). There were no significant differences in the proportions of patients hospitalised (epoetin alfa 24.6%, darbepoetin alfa 22.0%; p = 0.57). Patients randomised to epoetin alfa experienced more inpatient days, on average, than patients randomised to darbepoetin alfa (2.6 vs 1.6, 95% CI for the difference, 0.07, 2.27). However, with regard to transfusions, patients in the epoetin alfa arm required fewer units of blood than patients in the darbepoetin alfa arm (0.46 vs 0.88, 95% CI for the difference -0.77, -0.08). Mean total costs, comprising costs for study medications and their administration, inpatient care, transfusions, unplanned radiation therapy, haematology and laboratory services, chemotherapy and non-chemotherapy drugs and indirect costs were 14,976 US dollars in the epoetin alfa arm compared with 14,101 US dollars in the darbepoetin alfa arm, a difference of 875 US dollars (95% CI for difference -849, 2607), of which 98% of the difference was attributable to higher inpatient costs in the epoetin alfa arm (2374 US dollars vs 1520 US dollars; 95% CI for difference -33, 1955). Assessments of multiple clinical measures demonstrated improved outcomes with epoetin alfa relative to darbepoetin alfa. CONCLUSION: Most clinical outcome measures suggested greater improvement with epoetin alfa relative to darbepoetin alfa, but most costs for both agents appeared similar. Decision makers must evaluate the differences in costs and efficacy measures that are most relevant from their perspectives.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Pharmacoeconomics

DOI

ISSN

1170-7690

Publication Date

2006

Volume

24

Issue

5

Start / End Page

479 / 494

Location

New Zealand

Related Subject Headings

  • United States
  • Treatment Outcome
  • Recombinant Proteins
  • Office Visits
  • Middle Aged
  • Male
  • Humans
  • Hospitalization
  • Hematologic Tests
  • Hematinics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Reed, S. D., Radeva, J. I., Daniel, D. B., Mody, S. H., Forlenza, J. B., McKenzie, R. S., & Schulman, K. A. (2006). Economic evaluation of weekly epoetin alfa versus biweekly darbepoetin alfa for chemotherapy-induced anaemia: evidence from a 16-week randomised trial. Pharmacoeconomics, 24(5), 479–494. https://doi.org/10.2165/00019053-200624050-00006
Reed, Shelby D., Jasmina I. Radeva, Davey B. Daniel, Samir H. Mody, Jamie B. Forlenza, R Scott McKenzie, and Kevin A. Schulman. “Economic evaluation of weekly epoetin alfa versus biweekly darbepoetin alfa for chemotherapy-induced anaemia: evidence from a 16-week randomised trial.Pharmacoeconomics 24, no. 5 (2006): 479–94. https://doi.org/10.2165/00019053-200624050-00006.
Reed SD, Radeva JI, Daniel DB, Mody SH, Forlenza JB, McKenzie RS, et al. Economic evaluation of weekly epoetin alfa versus biweekly darbepoetin alfa for chemotherapy-induced anaemia: evidence from a 16-week randomised trial. Pharmacoeconomics. 2006;24(5):479–94.
Reed, Shelby D., et al. “Economic evaluation of weekly epoetin alfa versus biweekly darbepoetin alfa for chemotherapy-induced anaemia: evidence from a 16-week randomised trial.Pharmacoeconomics, vol. 24, no. 5, 2006, pp. 479–94. Pubmed, doi:10.2165/00019053-200624050-00006.
Reed SD, Radeva JI, Daniel DB, Mody SH, Forlenza JB, McKenzie RS, Schulman KA. Economic evaluation of weekly epoetin alfa versus biweekly darbepoetin alfa for chemotherapy-induced anaemia: evidence from a 16-week randomised trial. Pharmacoeconomics. 2006;24(5):479–494.

Published In

Pharmacoeconomics

DOI

ISSN

1170-7690

Publication Date

2006

Volume

24

Issue

5

Start / End Page

479 / 494

Location

New Zealand

Related Subject Headings

  • United States
  • Treatment Outcome
  • Recombinant Proteins
  • Office Visits
  • Middle Aged
  • Male
  • Humans
  • Hospitalization
  • Hematologic Tests
  • Hematinics