RESUMO
BACKGROUND: The head and neck cancer (HNC) Patient Concerns Inventory (PCI) is a condition-specific prompt list that allows patients to raise concerns to cancer consultants that otherwise might be overlooked. OBJECTIVE: This is the first economic evaluation of the PCI in patients with HNC investigating the costs and effects to the health service of not prioritising certain treatment pathways in addition to the primary cancer pathway. Additional costs can be accrued due to delayed referral to other appropriate services, e.g. hospital dentist. Economic evidence could influence future policy direction in this area globally. METHODS: Alongside a 3-year clustered randomised controlled trial, an economic evaluation was undertaken with Client Service Receipt Inventory data collected at three different time points (baseline and 6 and 12 months post-baseline). Patients were identified by a multidisciplinary team at the trial clinics. This economic analysis compared the PCI intervention versus the non-PCI treatment pathway. A deterministic and probabilistic sensitivity analysis was conducted to investigate the cost per quality-adjusted life-year (QALY) gain of the PCI versus non-PCI intervention treatment pathways. Qualitative data were also collected from seven consultants to triangulate findings from the economic evaluation. RESULTS: The analysis used data from 191 patients (66% of the full trial sample). The PCI inventory was low cost, at just over £13 per participant. The PCI intervention was cost effective and also cost saving, with an incremental cost difference of £295.91 over the 12-month follow-up period. The QALY values were higher in the PCI intervention strategy, with a value of 0.79, whereas the non-PCI group had a value of 0.76, thus the PCI intervention was dominant. The sensitivity analysis showed that, at a willingness-to-pay threshold of £20,000 per QALY gained, the probability of being cost effective was 0.85 (95% confidence interval [CI] 0.80-0.83). Qualitative results showed that consultants using the PCI reported an enhanced awareness of patients' overall post-treatment needs. DISCUSSION: The PCI provided an effective means to conduct clinical consultations by avoiding unnecessary healthcare costs and focussing on aspects of care most important to patients. The cost per QALY gain was within the National Institute for Health and Care Excellence guideline threshold. The economic evaluation showed that the PCI intervention strategy was dominant and therefore cost saving to the national health service (NHS) and was more effective in terms of treatment. CONCLUSION: The PCI appears to be a low-cost intervention that generates a cost-effective benefit to patients from a NHS perspective if rolled out as part of routine care. Qualitative evidence has shown that the use of the PCI is supported by consultants in routine practice. TRIAL REGISTRATION: Clinical Trials Identifier: NCT03086629.
RESUMO
BACKGROUND: Critical limb ischaemia is a severe stage of lower limb peripheral artery disease which can lead to tissue loss, gangrene, amputation and death. FlowOx™ therapy is a novel negative-pressure chamber system intended for home use to increase blood flow, reduce pain and improve wound healing for patients with peripheral artery disease and critical limb ischaemia. METHODS: A Markov model was constructed to assess the relative cost-effectiveness of FlowOx™ therapy compared to standard care in lower limb peripheral artery disease patients with intermittent claudication or critical limb ischaemia. The model used data from two European trials of FlowOx™ therapy and published evidence on disease progression. From an NHS analysis perspective, various FlowOx™ therapy scenarios were modelled by adjusting the dose of FlowOx™ therapy and the amount of other care received alongside FlowOx™ therapy, in comparison to standard care. RESULTS: In the base case analysis, consisting of FlowOx™ therapy plus nominal care, the cost estimates were £12,704 for a single dose of FlowOx™ therapy per annum as compared with £15,523 for standard care. FlowOx™ therapy patients gained 0.27 additional quality adjusted life years compared to standard care patients. This equated to a dominant incremental cost-effectiveness ratio per QALY gained. At the NICE threshold WTP of £20,000 and £30,000 per QALY gained, FlowOx™ therapy in addition to standard care had a 0.80 and 1.00 probability of being cost-effectiveness respectively. CONCLUSIONS: FlowOx™ therapy delivered as a single annual dose may be a cost-effective treatment for peripheral artery disease. FlowOx™ therapy improved health outcomes and reduced treatment costs in this modelled cohort. The effectiveness and cost-effectiveness of FlowOx™ therapy is susceptible to disease severity, adherence, dose and treatment cost. Research assessing the impact of FlowOx™ therapy on NHS resource use is needed in order to provide a definitive economic evaluation.
