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  • Title: Cost-effectiveness modeling of intrathecal baclofen therapy versus other interventions for disabling spasticity.
    Author: Bensmail D, Ward AB, Wissel J, Motta F, Saltuari L, Lissens J, Cros S, Beresniak A.
    Journal: Neurorehabil Neural Repair; 2009; 23(6):546-52. PubMed ID: 19228818.
    Abstract:
    OBJECTIVE: To assess by simulation the cost-effectiveness of intrathecal baclofen (ITB) therapy compared with conventional medical treatments for patients with disabling spasticity and functional dependence caused by any neurological disease. METHODS: Two models were created to simulate therapeutic strategies for managing severe spasticity, one with and one without the use of ITB, to assess various treatment sequences over 2 years based on current medical practices in France. Successful treatment at each evaluation was defined as a combination of: (1) the increased patient and caregiver satisfaction as assessed by goal attainment scaling (GAS), and (2) a decrease of at least 1 point on the Ashworth score. Probabilistic sensitivity analyses were performed using 5000 Monte-Carlo simulations taking into account specific distribution curves for direct costs and effectiveness parameters in each treatment option. RESULTS: The model simulations suggest that including ITB as a first option strategy in the management of function of severely impaired patients with disabling spasticity results in a higher success rate (78.7% vs 59.3%; P < .001). In addition, the ITB therapy model revealed a lower cost (pound 59,391 vs pound 88,272; P < .001) and an overall more favorable cost-effectiveness ratio (pound 75,204/success vs pound 148,822/success; P < .001), compared with conventional medical management without ITB. CONCLUSION: Within the assumptions of our modeling, ITB therapy evaluated by a combination of treatment success criteria at 6-month intervals over a 2-year period may be a cost-effective strategy compared to conventional medical management alone.
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