Artificial Urinary Sphincters as a Treatment for Post-Prostatectomy Severe Urinary Incontinence in Italy: A Cost-Utility Analysis

Abstract Objective: This study aimed at evaluating the cost-utility of artificial urinary sphincter (AUS) in men affected by postprostatectomy severe urinary incontinence and identifying the most cost-effective alternative among the various devices analyzed in Italy. Methods: A 5-year cycles Markov model was developed to simulate the disease evolution. The analysis compared conservative therapy, ZSI 375®, single-cuff (SC) AMS 800TM, and double-cuff (DC) AMS 800TM. A Probabilistic Sensitivity Analysis (PSA) was performed. One thousand Monte Carlo simulations were conducted to generate the Cost-Effectiveness Acceptability Curve for each intervention strategy. A sensitivity analysis on the price of the device was conducted. Results: From the Italian National Health Service perspective, DC AMS 800TM was the most cost-effective alternative in comparison with conservative therapy, with an Incremental Cost-Effectiveness Ratio (ICER) value equal to € 12,893. From the NHS + patient perspective, both the AMS 800TM devices (SC and DC) were dominant in comparison with conservative therapy. From the societal perspective, ICER was dominant for all the alternatives considered in terms of cost-effectiveness. The PSA showed that DC AMS 800TM had a greater probability to be cost-effective with respect to the other strategies considered in the analysis. The sensitivity analysis on the price of the device showed that in all the cases analyzed the incremental cost per QALY gained would be below € 25,000. Conclusions: This cost-utility analysis confirms that AUSs are cost-effective options in the Italian context with respect to conservative therapy. Among AUSs, DC AMS 800TM has the greatest probability to be cost-effective

Economic Consequences of Anti-HCV Treatment of Patients Diagnosed Through Screening in Italy: A Prospective Modelling Analysis

Aim To evaluate the cost-consequences of the investment for anti-hepatitis C virus (HCV) treatment by the Italian National Health System (NHS) for patients who will be newly diagnosed through active HCV screening, implemented in Italy from 2020. Methods A previously published Markov model was used to estimate the disease complications avoided and the associated savings over 20 years to treat a standardised population of 10,000 HCV-infected patients diagnosed as a result of screening. Disease progression probabilities and fibrosis stage distribution were based on previously reported data in the literature. Real-life treatment effectiveness and medical expenses for disease management were estimated starting from a representative cohort of HCV-treated patients in Italy (Italian Platform for the Study of Viral Hepatitis Therapies). The breakeven point in time (BPT) was defined as the years required for the initial investment in treatment to be recovered in terms of cumulative costs saved. Results Over a 20-year time horizon, the treatment of 10,000 standardized patients diagnosed through active HCV screening results in 7769 avoided events of progression, which are associated with euro838.73 million net savings accrued by the Italian NHS. The initial investment in treatment is recouped in 4.3 years in the form of savings from disease complications avoided. Conclusion Investment in treatment of newly diagnosed patients will bring a significant reduction in disease complications, which is associated with great economic benefits. This type of action can reduce the infection rate as well as the clinical and economic disease burden of HCV in Italy

Additive energy forward curves in a Heath-Jarrow-Morton framework

One of the peculiarities of power and gas markets is the delivery mechanism of forward contracts. The seller of a futures contract commits to deliver, say, power, over a certain period, while the classical forward is a financial agreement settled on a maturity date. Our purpose is to design a Heath-Jarrow-Morton framework for an additive, mean-reverting, multicommodity market consisting of forward contracts of any delivery period. The main assumption is that forward prices can be represented as affine functions of a universal source of randomness. This allows us to completely characterize the models which prevent arbitrage opportunities: this boils down to finding a density between a risk-neutral measure $\mathbb{Q}$, such that the prices of traded assets like forward contracts are true $\mathbb{Q}$-martingales, and the real world probability measure $\mathbb{P}$, under which forward prices are mean-reverting. The Girsanov kernel for such a transformation turns out to be stochastic and unbounded in the diffusion part, while in the jump part the Girsanov kernel must be deterministic and bounded: thus, in this respect, we prove two results on the martingale property of stochastic exponentials. The first allows to validate measure changes made of two components: an Esscher-type density and a Girsanov transform with stochastic and unbounded kernel. The second uses a different approach and works for the case of continuous density. We apply this framework to two models: a generalized Lucia-Schwartz model and a cross-commodity cointegrated market.Comment: 28 page

Economic burden of HPV9-related diseases : a real world cost analysis from Italy

The objectives of this study were to estimate the economic burden of HPV in Italy, accounting for total direct medical costs associated with nine major HPV-related diseases, and to provide a measure of the burden attributable to HPV 6, 11, 16, 18, 31, 33, 45, 52, 58 infections

Cost-effectiveness analysis of Vaborem in Carbapenem-resistant Enterobacterales (CRE) -Klebsiella pneumoniae infections in Italy

Background: Vaborem is a fixed dose combination of vaborbactam and meropenem with potent activity against target Carbapenem-resistant Enterobacterales (CRE) pathogens, optimally developed for Klebsiella pneumoniae carbapenemase (KPC). The study aims to evaluate the cost-effectiveness of Vaborem versus best available therapy (BAT) for the treatment of patients with CRE-KPC associated infections in the Italian setting. Methods: A cost-effectiveness analysis was conducted based on a decision tree model that simulates the clinical pathway followed by physicians treating patients with a confirmed CRE-KPC infection in a 5-year time horizon. The Italian National Health System perspective was adopted with a 3% discount rate. The clinical inputs were mostly sourced from the phase 3, randomised, clinical trial (TANGO II). Unit costs were retrieved from the Italian official drug pricing list and legislation, while patient resource use was validated by a national expert. Model outcomes included life years (LYs) and quality adjusted life years (QALYs) gained, incremental costs, incremental cost- effectiveness ratio (ICER) and incremental cost-utility ratio (ICUR). Deterministic and probabilistic sensitivity analyses were also performed. Results: Vaborem is expected to decrease the burden associated with treatment failure and reduce the need for chronic renal replacement therapy while costs related to drug acquisition and long-term care (due to higher survival) may increase. Treatment with Vaborem versus BAT leads to a gain of 0.475 LYs, 0.384 QALYs, and incremental costs of €3549, resulting in an ICER and ICUR of €7473/LY and €9246/QALY, respectively. Sensitivity analyses proved the robustness of the model and also revealed that the probability of Vaborem being cost-effective reaches 90% when willingness to pay is €15,850/QALY. Conclusions: In the Italian setting, the introduction of Vaborem will lead to a substantial increase in the quality of life together with a minimal cost impact, therefore Vaborem is expected to be a cost-effective strategy compared to BAT