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Cost-Effectiveness of PHMB & betaine wound bed preparation compared with standard care in venous leg ulcers: A cost-utility analysis in the United Kingdom

Cooper DM, Bojke C, Ghosh P

J Tissue Viability, 2023 Mar 16.
PMID: 36990897 DOI: 10.1016/j.jtv.2023.03.001

BACKGROUND: Wounds cost £8.3 billion per year in the United Kingdom (UK) annually. Venous leg ulcers (VLUs) account for 15% of wounds and can be complicated to heal, increasing nurse visits and resource costs. Recent wound bed preparation consensus recommends wound cleansing and biofilm disrupting agents. However, inert cleansers such as tap water or saline are inexpensive, an evaluation of evidence is required to justify the higher upfront costs of treatment with active cleansers. We undertook a cost-effectiveness analysis of the use of a biofilm disrupting and cleansing solution and gel, Prontosan® Solution and Gel X, (PSGX) (B Braun Medical), as compared to the standard practice of using saline solution, for treating VLUs.
METHODS: A Markov model was parameterised to one-year costs and health-related quality of life consequences of treating chronic VLUs with PSGX versus saline solution. Costs are viewed from a UK healthcare payer perspective, include routine care and management of complications. A systematic literature search was performed to inform the clinical parameters of the economic model. Deterministic univariate sensitivity analysis (DSA) and probabilistic sensitivity analysis (PSA) were undertaken.
RESULTS: For PSGX an Incremental Net Monetary Benefit (INMB) of £1,129.65 to £1,042.39 per patient (with a Maximum Willingness to Pay of £30k and £20k per QALY respectively), of which cost savings are £867.87 and 0.0087 quality-adjusted life years (QALYs) gain per patient. PSA indicates a 99.3% probability of PSGX being cost-effective over saline.
CONCLUSIONS: PSGX for the treatment of VLUs is dominant compared with saline solution in the UK with expected cost-savings within a year and improved patient outcomes.

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