Direct healthcare costs of chronic kidney disease management in Italy: What cost-savings can be achieved with higher biosimilar uptake and more appropriate use of erythropoiesis-stimulating agents?

PURPOSE: Erythropoiesis-stimulating agents (ESAs), are used for treating chronic kidney disease (CKD)-related anemia, contributing to CKD costs. The study was aimed at investigating direct healthcare costs of CKD patients treated with ESAs and the potential savings achievable by increasing the use of biosimilars and preventing inappropriate ESA use. METHODS: A multi-center, cohort study was conducted using claims databases of five large Italian geographic areas. Yearly mean direct healthcare costs per patient were estimated, stratifying by CKD stage. The total yearly cost and potential savings related to ESA use were estimated: (a) considering 25/50/75% of originator ESA substitution with biosimilars; (b) eliminating inappropriate ESA dispensing. RESULTS: During the study period, the ESA-related yearly mean cost represented 17% of total yearly costs in stage I-III, decreasing to 13% in stage IV-V and 6% in dialysis. Among originator users, assuming a 25% of biosimilar uptake, the annual cost-savings of ESA treatment would represent 10.5% of total ESA costs in CKD stage I-V and 7.7% in dialysis. Among incident ESA users for which hemoglobin levels were available, 9% started inappropriately ESA treatment, increasing to 62.0% during the first year of maintenance therapy. Hypothesizing prevention of the first inappropriate ESA dispensing, the total yearly cost-savings would amount to €35 772, increasing to €167 641 eliminating the inappropriate dispensing during maintenance therapy. CONCLUSIONS: Higher use of lowest cost ESA, prevention of inappropriate ESA use as well as other strategies aimed at slowing down the progressive renal impairment are essential for minimizing clinical and economic burden of CKD.

Comparative Effectiveness of Two Tiotropium Formulations: A Retrospective Cohort Study.

The effectiveness of the tiotropium Respimat® formulation in routine clinical practice is still an open issue due to concern about the generalizability of the Tiotropium Safety and Performance in Respimat® (TIOSPIR) trial findings. Our aim was to compare the incidence of acute respiratory events between new users of tiotropium Respimat® and HandiHaler®. The study population comprised patients aged ≥45 years resident in two Italian regions who received a first tiotropium prescription (HandiHaler® or Respimat®) between 1 July 2011 and 30 November 2013. The cohort was identified within the database of drug prescriptions reimbursed by the Italian National Health Service. Clinical outcomes were obtained from hospital records. The primary outcome was the first hospitalization for respiratory events, including chronic obstructive pulmonary disease (COPD) exacerbation, respiratory failure, hypoxemia/hyperventilation and pneumonia, during the exposure period. The hazard ratios were estimated for the propensity score matched groups with Cox regression. After matching, 31,334 patients with incident tiotropium prescriptions were included. Similar incidence rates of the primary outcome between the Respimat® and HandiHaler® users were identified (adjusted hazard ratio 0.95, 95% CI 0.84-1.07). No differences emerged in the subgroup analyses conducted according to the baseline characteristics of the tiotropium users. This study confirms the findings observed in the TIOSPIR trial in a more heterogeneous population that included patient subgroups with severe respiratory disease and unstable COPD.

[Adaptive studies to assess drug effectiveness]. / Gli studi adattativi nella valutazione di efficacia dei farmaci.

The clinical development of drugs is based on a consolidated model that adopts, as a reference, the conduct of consecutive dose-finding and activity studies (the phases), up to the classical randomized controlled trials (RCTs), which are strictly regulated by a study protocol. This model is likely to be too rigid, since it cannot incorporate the information that gradually becomes available. To overcome, at least partly, this limited flexibility, so-called adaptive designs have been proposed: in these designs, it is possible to introduce changes and also to modify relevant aspects of a single design on the basis of results/information obtained in the study itself. This article presents the main characteristics of these designs and discusses the precautions to be taken into account in the application in clinical studies.

Can systematic reviews contribute to regulatory decisions?

INTRODUCTION: The new call on independent research on drugs issued in October 2016 by the Italian Medicines Agency (AIFA) explicitly reported that proposals based on systematic reviews were not admissible, and no justification or explanation for this choice was given. Prompted by this policy decision, here, we briefly discuss the potential usefulness of systematic reviews in responding to regulatory needs. First, systematic reviews, by collecting, analysing and critically appraising all relevant studies on a specific topic, may be used by different stakeholders as a basis for making clinical and policy recommendations, including regulatory recommendations. Second, systematic reviews may advance knowledge as primary clinical research does. Third, systematic reviews may be particularly useful to detect signals of unknown adverse effects. Fourth, systematic reviews may be used to identify knowledge gaps. PROPOSAL: Systematic reviews may simultaneously produce new findings and summarize existing knowledge, with the potential of informing regulatory decisions more pragmatically and more rapidly than other research designs. We suggest that national and international calls on independent research on drugs should not put primary clinical research against systematic reviews, as it implies a focus on the methods instead of on the questions being asked. As most calls only broadly define the research areas and the topics to be covered, we argue that it should be up to the applicant to make a proposal on which design provides the most valid and useful answer, and up to the assessors to carefully check the validity, feasibility and relevance of such a proposal.

Triptan use in Italy: Insights from administrative databases.

INTRODUCTION: In this drug utilization study, we aimed at assessing the pattern of triptan use in Italy by means of the drug prescription databases of two local health authorities, accounting for approximately 1 million citizens. METHODS: The study population included all residents aged 18 to 84 years in the Vercelli province (about 175,000 inhabitants) and in the Umbria region (about 885,000 inhabitants), who had at least one dispensation for triptans in 2012. A frequent user, who might be at risk of medication-overuse headache (MOH), was defined as a patient being dispensed at least 10 defined daily doses (DDD) of triptans every month for at least three consecutive months. RESULTS: Triptans were used by 0.7%-1% of the population. While most patients were dispensed fewer than 60 DDDs per year, about 10% of all triptan users were classified as frequent users. In both areas, patients below the age of 29 were less likely to be frequent users while the 40- to 49-year-old population was the most affected, with no sex difference. About two-thirds of frequent users persisted in this behavior for an additional three-month period in the following six months. CONCLUSIONS: Our data indicate that approximately 10% of all triptan users in the Italian population are potentially at risk for MOH. An approach based on drug prescription databases could be useful to identify patients at risk for MOH.

[The role of drug registries in the post-marketing surveillance]. / I registri nella sorveglianza post-marketing dei farmaci. Un'introduzione.

The aim of this article is to provide an introduction to issue of Recenti Progressi in Medicina, devoted to the role of drug registries in the post-marketing surveillance. We first motivate the need to implement registries as a tool in promoting the appropriateness of drug use and acquiring additional information on the risk-benefit profile of drugs. Then, the different role that can be played by registries in comparison with prescription monitoring systems and observational studies is clarified. The presentation of some of the most relevant registries established in Italy since the end of the '90s, with the analysis of their strengths and weaknesses, helps to understand some of the crucial issues that should be taken into account before a new registry is adopted. Specifically, we deal with the relationship between objectives - of appropriateness, effectiveness and safety - and methods; the overlapping between drug-based registries and disease-based ones; the duration and extension of data collection, which may be either exhaustive or based on a sampling frame; the importance of ensuring the quality of the data and to minimize the number of subjects who are lost to follow-up; the importance of infrastructures, and of ad hoc funding, for the functioning of a registry; the independence in data analysis and publication of findings.

[A perspective for the role of drug registries in the post-marketing surveillance]. / Una prospettiva per i registri nella sorveglianza post-marketing dei farmaci.

Drug registries are implemented after the authorization of new products and represent a tool for systematic collection of data aimed at obtaining additional knowledge on appropriateness, effectiveness and safety. The design of registries needs to be coherent with the main objective and a study protocol is required before the implementation. A registry aimed at the appropriateness of drug use should be primarily considered for high cost drugs when there is a risk, either for the patients' safety or for public expenditure, in using the drug outside the approved indications. Since the registry is a condition for the access to drugs, and all users are included, an extremely simplified data collection is required. However, the data should be available at regional level to allow record linkage procedures with other databases for conducting outcome studies. When registries are aimed at acquiring new information on the risk profile, the duration and the regional extension of data collection should be coherent with the expected incidence of events of interest. A great attention should be devoted in preventing that patients are lost to follow-up, since the reasons for being lost are frequently associated with harmful outcomes, such as adverse drug reactions. In a registry focused on effectiveness, the main aim consists in ascertaining the reasons (the prognostic factors), for possible discrepancies between premarketing studies and clinical practice. Taking into account the greater incidence of the expected events, there are fewer reasons for extending data collection to all users, whereas the main attention should focus on quality controls and the ascertainment of confounding factors. Given the relevance of the validity issues, in the set out of a registry it is important to think about ad hoc resources and the adequacy of infrastructures. As for any epidemiological study, an adequate qualification of the researcher/clinician in charge of conducting a registry should be guaranteed, together with independence in data analysis and freedom to publish all findings.

[Protect the experts' work.] / Proteggere il lavoro degli esperti.

During the most worrying months of the Covid-19 pandemic, Italy's Regions and Autonomous Provinces were classified into four areas distinguished by different colours - red, orange, yellow and white - corresponding to three risk scenarios, thus leading to restrictive measures of varying degrees. The Public Prosecutor's Office of the Court of Bergamo - one of the cities hardest hit by the health emergency - has closed an initial investigation claiming that the failure to establish the red zone caused the epidemic to spread to a valley in Lombardy with a significant increase in avoidable mortality if the restrictive measures had been put in place in time. The accusation is an opportunity to consider the role of experts and the risks of error in the decision-making process. The choices made during the pandemic were often made under conditions of uncertainty: health policies need experts to take responsibility for making complex, risky decisions; but complex, risky decisions are also those for which it is more likely, in retrospect, to turn out that on some aspect a mistake was made, or the best choice was not made. By pushing technicians away from risky assessments, only the unskilled will be left to make those assessments.

Safety and efficacy of COVID-19 vaccines in patients on dialysis: a multicentre cohort study in Italy.

BACKGROUND: The aim of this study was to evaluate the efficacy and safety of COVID-19 vaccines in patients undergoing haemodialysis in Italy compared to the general population. METHODS: In this cohort study, 118 dialysis centres from 18 Italian Regions participated. Individuals older than 16 years on dialysis treatment for at least 3 months, who provided informed consent were included. We collected demographic and clinical information, as well as data on vaccination status, hospitalisations, access to intensive care units and adverse events. We calculated the incidence, hospitalisation, mortality, and fatality rates in the vaccinated dialysis cohort, adjusted for several covariates. The incidence rates of infection in the dialysis cohort and the general population were compared through Standardised Incidence Rate Ratio. RESULTS: The study included 6555 patients vaccinated against SARS-CoV-2 infection according to the schedule recommended in Italy. Between March 2021 and May 2022, there were 1096 cases of SARS-CoV-2 infection, with an incidence rate after completion of the three-dose vaccination cycle of 37.7 cases per 100 person-years. Compared to the general population, we observed a 14% reduction in the risk of infection for patients who received three vaccine doses (Standardised Incidence Rate Ratio: 0.86; 95% Confidence Interval: 0.81-0.91), whereas no statistically significant differences were found for COVID-19-related hospitalisations, intensive care unit admissions or death. No safety signals emerged from the reported adverse events. CONCLUSIONS: The vaccination program against SARS-CoV-2 in the haemodialysis population showed an effectiveness and safety profile comparable to that seen in the general population.

[Scientific rigor and attention to values. Memory of Alessandro Liberati.] / Rigore scientifico e attenzione ai valori. Ricordo di Alessandro Liberati.

The author describes the personality of Alessandro Liberati - an Italian doctor and researcher - ten years after his death: a competent, kind person with a good sense of humor. The take-home message is that it is worth engaging in the institutions in which we work throughout our lives and that the improvement of individual health conditions and public health go through daily work capable of combining values and the best scientific evidence available.

Dynamics of price competition in Italian pharmaceutical off-patent market.

Introduction: The aim of the study was to evaluate, in a regulated generics market, the effect of the number of manufacturers of generic drugs on the amplitude of off-patent products price reduction and the price evolution of originators and generics after the patent expiry of pharmaceuticals dispensed by community pharmacies and reimbursed by the Italian National Health Service (INHS). Methods: The AIFA "transparency list" was utilized to select unbranded and branded off-patent drug dispensed by community pharmacies and reimbursed by the Italian National Health Service between 2012 and 2018. The unbranded drug entry in the transparency list database was considered as a proxy of its patent expiry. Results: A total of 42 different active ingredients were included in the analysis. The relative price per dose at time t of unbranded and branded drugs, considering as common denominator the price per dose a year before the patent expiry, (t-1) decreased with the increase of unbranded manufacturers. At the time of the patent expiry, the price of unbranded drugs was almost 50% less than that of branded drugs at t-1 and the price of branded drugs started to decrease before the first unbranded entry. Conclusion: An inverse relation between the number of generic drug entrants and the price of generics and originators was detected. The patent expiry determines a price decline, more concentrated in the first year of patent expiry.

The timelines for the price and reimbursement authorization in Italy 2018-2020.

Objective: This investigation aimed to guarantee the principles of transparency in public administration; to inform citizens about the time to patient access to reimbursed medicines; to assess the duration of the P&R process for the first time in the period 2018-2020; and to evaluate whether and how the SARS-CoV-2 (COVID-19) pandemic affected the P&R activity. This study analyzed the timelines of pricing and reimbursement procedures submitted in Italy by the pharmaceutical marketing authorization holder (MAH) from 2018 to 2020. Methods: The analysis was run through an AIFA web-based platform that collects data about P&R procedures for each step of the Italian Price and Reimbursement (P&R) procedure, including dates of the Technical Scientific Committee (CTS) and Price and Reimbursement Committee (CPR) meetings from January 2018 to December 2020. On this basis, four indicators were developed relating to the completion time of each stage of the P&R negotiation process and were defined in terms of days. In this regard, descriptive analyses, graphical boxplots, and survival curves (Kaplan-Meier) were carried out, studying these indicators in relation to the typology of pharmaceutical procedures. Results: Overall, in the period 2018-2020, 57.1% of the 2,445 procedures entered were represented by the Off-patent pharmaceuticals procedures (generics, biosimilars, copies, and/or parallel trade). In 2020, the overall process duration for Off-patent pharmaceuticals procedures was equal to 129.8 average days [95% CI: (122.3-137.2)], with a median value of 108.0, whereas for In-patent pharmaceuticals procedures, it was equal to 283.1 average days [95% CI: (267.8-298.5)], with a median value of 284.0. Over time, the trend of the entire duration of the P&R process tended to decrease. In terms of estimated timing for the conclusion of each stage of the P&R negotiation process, the difference between Off-patent and In-patent pharmaceutical procedures was statistically significant by the Log-Rank test. Discussion and conclusion: This is the first study to examine the time of the P&R process in Italy, from MAH submission to the publication of the final decision in the Italian Official Journal. The time span considered is 3 years, including the first year of the COVID-19 pandemic. Compared to European average times, in Italy, the time necessary for evaluation, authorization for reimbursement, and definition of the price of a medicine can be considered satisfactory.

Effect of Fluoroquinolone Use in Primary Care on the Development and Gradual Decay of Escherichia coli Resistance to Fluoroquinolones: A Matched Case-Control Study.

The reversibility of bacterial resistance to antibiotics is poorly understood. Therefore, the aim of this study was to determine, over a period of five years, the effect of fluoroquinolone (FQ) use in primary care on the development and gradual decay of Escherichia coli resistance to FQ. In this matched case−control study, we linked three sources of secondary data of the Health Service of the Autonomous Province of Bolzano, Italy. Cases were all those with an FQ-resistant E. coli (QREC)-positive culture from any site during a 2016 hospital stay. Data were analyzed using conditional logistic regression. A total of 409 cases were matched to 993 controls (FQ-sensitive E. coli) by the date of the first isolate. Patients taking one or more courses of FQ were at higher risk of QREC colonization/infection. The risk was highest during the first year after FQ was taken (OR 2.67, 95%CI 1.92−3.70, p < 0.0001), decreased during the second year (OR 1.54, 95%CI 1.09−2.17, p = 0.015) and became undetectable afterwards (OR 1.09, 95%CI 0.80−1.48, p = 0.997). In the first year, the risk of resistance was highest after greater cumulative exposure to FQs. Moreover, older age, male sex, longer hospital stays, chronic obstructive pulmonary disease (COPD) and diabetes mellitus were independent risk factors for QREC colonization/infection. A single FQ course significantly increases the risk of QREC colonization/infection for no less than two years. This risk is higher in cases of multiple courses, longer hospital stays, COPD and diabetes; in males; and in older patients. These findings may inform public campaigns and courses directed to prescribers to promote rational antibiotic use.

Safety of switching between rituximab biosimilars in onco-hematology.

Comparable clinical efficacy and safety of the reference rituximab (MABTHERA) and its biosimilars has been established in randomized trials. However, safety concerns are often raised when switching from reference to biosimilar products and between different biosimilars. In this prospective observational study we aimed at evaluating the safety of switching between reference and biosimilar rituximab (TRUXIMA and RIXATHON) at Trento General Hospital (Italy). All patients (n = 83) with Non Hodgkin's Lymphoma (NHL, n = 72) and Chronic Lymphocytic Leukemia (CLL, n = 11) who received rituximab between March 2018 and March 2019 were asked to take part in the study. In 2017 and 2018 two tenders were carried out and two different biosimilars became available in the hospital, these were used sequentially. Thus, patients with or without previous treatments with the originator rituximab either received a biosimilar or were switched between different biosimilars. The incidence of adverse events in these groups of patients is described. The study population received 465 rituximab infusions and all received biosimilars. Fifty patients (60%) experienced at least one switch between different biosimilars or between rituximab originator and biosimilar, whereas 33 (40%) received one of the two biosimilars and one patient received reference rituximab. Adverse events (n = 146) were reported in 71 patients (84.5%). Treatment-related grade 3-4 events were reported in 5 patients (5.9%), whereas grade 1 rituximab related infusion events were observed in 6 patients (7.1%). No safety signal emerged in association with the use of a specific biosimilar nor with the practice of switching. Adverse events were similar, in terms of seriousness and frequency, to those described in the literature, providing further support to the clinical safety of rituximab biosimilars.

[Medicines use in Italy. 2020 OsMed National Report.] / L'uso dei farmaci in Italia. Il Rapporto Nazionale OsMed 2020.

The 2020 National Report "Medicines use in Italy", produced by the National Observatory on the Use of Medicines (OsMed) of the Italian Medicines Agency (AIFA), describes the Italian pharmaceutical assistance through different available information flows that allow to recompose pharmaceutical territorial and hospital assistance, concerning both the national health service and private citizens. In the Report the results of numerous analyzes, both general and focused on specific therapeutic categories and classes, relating to pharmaceutical expenditure and consumption, are reported, but it is also present an in-depth analysis about monitoring registries and conditional reimbursement agreements, and a comparison between the most relevant Italian data and those of nine other European countries.