Journal of medical economics · 2021
Cost-effectiveness of topical glycopyrronium tosylate for the treatment of primary axillary hyperhidrosis.
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Bloudek Lisa M, Gillard Kristin Khalaf, Nguyen Victor B, Klein Stephanie Zone
Аннотация
AIMS: Primary axillary hyperhidrosis (PAHH) is a condition characterized by excessive sweating that negatively impacts health-related quality of life, with significant psychological and social impacts. Glycopyrronium tosylate (GT) is a topical anticholinergic approved in the United States for treatment of PAHH in patients 9 years of age and older. Our objective was to assess the cost-effectiveness of GT as first-line topical therapy compared to topical aluminum chloride from a United States commercial perspective.
MATERIALS AND METHODS: A Markov model was developed consisting of four health states based on the Hyperhidrosis Disease Severity Scale (HDSS) over a time horizon of 5 years with discount rates of 3% for both costs and outcomes. Transitions between health states were driven by HDSS response, defined as an improvement of ≥2 points. Non-responders and those who discontinue could switch to later line treatments or no treatment. Health utility scores were based on HDSS scores, supported by published literature.
RESULTS: Over 5 years, GT yielded 0.12 greater QALYs and 0.93 greater LYs with response compared to treatment with prescription aluminum chloride at an incremental cost of $10,584. Relative to prescription aluminum chloride, GT resulted in an incremental cost-effectiveness ratio (ICER) of $87,238 per QALY gained, $11,349 per LY with response. The ICER fell below $100,000 for 66% of probabilistic sensitivity analysis simulations and below $150,000 for 82% of simulations.
LIMITATIONS: This analysis represents a simplified scenario of a hypothetical PAHH patient. Due to sparse data, assumptions were required for treatment patterns, efficacy, and persistence.
CONCLUSION: Based on the analysis of incremental cost per QALY gained, GT may be cost-effective relative to prescription aluminum chloride at commonly accepted willingness to pay thresholds.
MATERIALS AND METHODS: A Markov model was developed consisting of four health states based on the Hyperhidrosis Disease Severity Scale (HDSS) over a time horizon of 5 years with discount rates of 3% for both costs and outcomes. Transitions between health states were driven by HDSS response, defined as an improvement of ≥2 points. Non-responders and those who discontinue could switch to later line treatments or no treatment. Health utility scores were based on HDSS scores, supported by published literature.
RESULTS: Over 5 years, GT yielded 0.12 greater QALYs and 0.93 greater LYs with response compared to treatment with prescription aluminum chloride at an incremental cost of $10,584. Relative to prescription aluminum chloride, GT resulted in an incremental cost-effectiveness ratio (ICER) of $87,238 per QALY gained, $11,349 per LY with response. The ICER fell below $100,000 for 66% of probabilistic sensitivity analysis simulations and below $150,000 for 82% of simulations.
LIMITATIONS: This analysis represents a simplified scenario of a hypothetical PAHH patient. Due to sparse data, assumptions were required for treatment patterns, efficacy, and persistence.
CONCLUSION: Based on the analysis of incremental cost per QALY gained, GT may be cost-effective relative to prescription aluminum chloride at commonly accepted willingness to pay thresholds.