Abstract
ABSTRACTObjective: The objective of this study was to generate estimates of cost-effectiveness/utility of somatropin (rDNA origin) in the treatment of growth hormone deficiency (GHD) in childrenMethods: A decision-analytic model of the epidemiology and treatment of GHD in children was developed. Treatment of GHD was assessed in two hypothetical cohorts compared to no treatment – treatment with somatropin 0.030 mg/kg/day from ages 5 to 16 years, and treatment from ages 3 to 18 years. Costs (stated in 2005 US$) included those related to drug acquisition, endocrinologist consultations, and primary care office visits. Estimates of patient weight by age and sex were derived from published literature, as was the proportion of patients achieving normal height through somatropin treatment and pre/post-treatment patient utilities. Cost-effectiveness/utility was estimated over patients’ expected lifetimes, and was stated alternatively as discounted (3% per annum) US dollars per normal height year (NHY) gained, and cost per quality adjusted life-year (QALY) gained. Multivariate sensitivity analyses were conducted to ensure robustness of the model.Results: The cost-effectiveness and cost-utility of treating children from ages 5 to 16 years with somatropin was estimated at approximately $8900 per NHY gained and $37 000 per QALY gained, respectively. Corresponding ratios pertaining to treatment of children from ages 3 to 18 years were $9300 per NHY gained and $42 600 per QALY gained. Findings were relatively insensitive to variation in most model parameters.Conclusions: For both age cohorts, the cost-effectiveness/utility of somatropin in the treatment of GHD compares favorably to well-accepted threshold values. The use of somatropin represents reasonable value for money for the treatment of GHD in children.
Published Version
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