Nurse-led DSME is associated with improved glycemic control, demonstrating that programs are most effective among seniors and with follow-up periods of 1 to 6 months. Future programs tailored to the needs of patients younger than 65 years may improve the impact of DSME on blood glucose.
The purpose of this study was to compare in clinical and economic terms the long-acting insulin analogue detemir with intermediate-acting Neutral Protamine Hagedorn (NPH) insulin and with long-acting insulin glargine. Investigators used the validated Center for Outcomes Research (CORE) Diabetes Model to project clinical and cost outcomes over a 35-year base case time horizon; outcome data were extracted directly from randomized, controlled trials designed to compare detemir with NPH and with insulin glargine. Modeled patient characteristics were derived from corresponding trials, and simulations incorporated published quality-of-life utilities with cost data obtained from a Medicare perspective. Detemir, when compared with NPH, increased quality-adjusted life expectancy by 0.698 quality-adjusted life-years (QALYs). Lifetime direct medical costs were increased by 10,451 dollars per patient, although indirect costs were reduced by 4688 dollars. On the basis of direct costs, the cost per QALY gained with detemir was 14,974 dollars. In comparison with glargine, detemir increased quality-adjusted life expectancy by 0.063 QALYs, reduced direct medical costs by 2072 dollars per patient, and decreased indirect costs by 3103 dollars (dominant). Reductions in diabetes-related comorbidities were also associated with detemir in both instances, most notably in the complications of retinopathy and nephropathy. Relative reductions in rates of complications were greatest in the comparison of detemir with NPH. Results were most sensitive to variation in hemoglobin A1c (HbA1c) levels. However, variation among any of the key assumptions, including HbA1c, did not alter the relative results. Detemir represents an attractive clinical and economic intervention in the US health care setting compared with both NPH insulin and insulin glargine.
The aim of this study was to gain a preliminary indication of the long-term clinical and economic implications of converting treatment for patients with type 2 diabetes to insulin detemir+/-oral hypoglycemic agents (OHAs) in a routine clinical practice setting in the United States. With the use of outcome data and patient characteristics reported from an ongoing prospective observational trial, a validated computer simulation model of diabetes was used to project the clinical and cost outcomes associated with therapy conversion to insulin detemir over a 35-y period from (1) OHA only, (2) neutral protamine Hagedorn insulin (NPH)+/-OHA, and (3) insulin glargine+/-OHA. Cost-effectiveness was assessed from a third-party healthcare payer perspective for the year 2005. Costs and clinical outcomes were discounted at a rate of 3%. Treatment with insulin detemir+/-OHA was associated with increases in quality-adjusted life expectancy of 0.309, 0.350, and 0.333 quality-adjusted life-years (QALYs) versus treatment with OHA alone, NPH+/-OHA, and insulin glargine+/-OHA, respectively. Increases in pharmacy costs were partially offset by reduced complications, rticularly renal complications and neuropathy. Projected incremental cost-effectiveness ratios were well within the range considered to represent good value in the United States, at $7412, $6269, and $3951 per QALY gained for treatment with Idet+/-OHA versus OHA alone, NPH+/-OHA, and Iglarg+/-OHA, respectively. On the basis of preliminary evidence of short-term improvements in glycemic control and reduced hypoglycemia, therapy conversion to insulin detemir+/-OHA from OHA alone, NPH+/-OHA, or insulin glargine+/-OHA was projected to increase quality-adjusted life expectancy and to represent a cost-effective treatment option in the United States.
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