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Aims: This retrospective analysis of the Optum Clinformatics Data Mart database evaluated US patient characteristics, healthcare resource utilization (HCRU), costs, and treatment patterns among unvaccinated adults with outpatient-diagnosed COVID-19 to quantify US economic burden., Materials and Methods: The index event was the earliest outpatient diagnosis of confirmed COVID-19 from May 1 to December 10, 2020. Patients had 12 months' continuous enrollment before and were followed for ≥60 days after index date until insurance dis-enrollment or study end., Results: 236,589 patients had outpatient-diagnosed COVID-19 (7,692 with and 228,897 without subsequent COVID-19-related inpatient admission >48 h post-diagnosis). The median age was 51 years (≥65 years, 30.0%); 72.4% had ≥1 risk factor. Patients with versus without subsequent inpatient admission were more often male, older, Black/Hispanic, and had comorbidities/risk factors. With a median follow-up of 162 days, patients had a median of 1 COVID-19-related outpatient visit (with inpatient admission, 5 outpatient visits). Those with inpatient admission had a median of 1 COVID-19-related inpatient visit (median length of stay [LOS], 6 days), 33.3% were admitted to intensive care (median LOS, 8 days), 8.4%, 7.1%, and 13.3% received invasive mechanical ventilation, noninvasive mechanical ventilation, and supplemental oxygen, respectively; 13.5% experienced readmission. Inpatient mortality was 6.0% (0.3% for nonhospitalized patients). Antithrombotic therapy, antibiotics, corticosteroids, and remdesivir use increased among patients with inpatient admission versus without. Median total COVID-19-related non-zero medical costs were $208 for patients without inpatient admission (with inpatient admission, $39,187)., Limitations: Results reflect the circulating SARS-CoV-2 and treatment landscape during the study period. Requirements for continuous enrollment could have biased the population. Cost measurements may have included allowed (typically higher) and charge amounts., Conclusions: Given the numbers of the US population who are still not fully vaccinated and the evolving epidemiology of the pandemic, this study provides relevant insights on real-world treatment patterns, HCRU, and the cost burden of outpatient-diagnosed COVID-19.

Aims: To estimate the cost impact of non-medical switching from originator to biosimilar etanercept in stable patients with rheumatoid arthritis (RA) in the UK. Materials and methods: A cohort-based decision tree model was developed with a 1-year time horizon. The model population included patients with stable RA (patients who responded to originator etanercept treatment with no treatment changes in the previous 6 months). Patients could undergo a non-medical switch to a biosimilar and then switch treatment again, if medically required, after 3-6 months. Data on the proportion of patients switching therapies, baseline healthcare resource use, and impact of switching on resource use were sourced from a survey of 150 rheumatologists from EU5 markets (France, Germany, Italy, Spain, UK). The average impact of switching was evaluated as mean values for change in resource utilization due to switching. Also, low- and high-impact scenarios (lower and upper values of the 95% confidence intervals for change in resource utilization due to switching) were modelled as sensitivity analyses. Cost data came from published UK sources. Results: The model assumed that 5,000 patients were treated with originator etanercept, with 1,259 (25.2%) switching to a biosimilar. Of those, 875 (69.5%) and 384 (30.5%) switched to SB4 and GP2015, respectively. After 3 months, 26.3% of patients who switched treatments did so again: 8.3% back to originator, 3.8% to the other biosimilar, and 14.2% to another biologic. Although originator etanercept was more expensive than the biosimilars, switching was more costly than continuous originator treatment across all impact scenarios. Switching treatment chains had higher overall annual per-patient costs than continuous originator treatment. Switching was associated with increased healthcare resource use. Limitations: Results from this analysis are not transferable to other (non-RA) etanercept indications. Conclusion: Non-medical switching can result in increased payer costs because of increased healthcare resource use following switching.

Lead, cadmium and mercury are non-essential heavy metals that may interfere with biological systems, exhibiting high toxicity to human and marine biota. Due to bioaccumulation of heavy metals in the food chain, seafood may concentrate high levels of these contaminants since they are often at the top of aquatic food chain. In this study, 342 seafood samples, subdivided into four categories (bivalve molluscs, cephalopod molluscs, blue-fish and other sea fish), were analysed by inductively coupled plasma mass spectrometry, in order to assess the levels of lead, cadmium and mercury. Contamination levels higher than allowable limits were verified. In particular, two bivalve mollusc samples were non-compliant for lead and cadmium, four cephalopod mollusc samples non-compliant for cadmium and 14 samples (4 blue-fish and 10 other sea fish) non-compliant for mercury. This survey confirmed the necessity to perform routinely controls related to this type of food inspection.

Objectives: To conduct a retrospective analysis of the association between drug tolerability and potential economic impact measured by medical resource utilization (MRU) for prophylaxis of invasive antifungal infections (IFI) after allogeneic hematopoietic stem cell transplantation (alloHCT)., Methods: An open-label, multi-center study (IMPROVIT) included patients (≥12-years old) who were randomized to receive oral voriconazole (VOR) or oral itraconazole (ITR) from the alloHCT day for at least 100 days and up to 180 days. Trial data on discontinuation and MRU for the first 100 days were analyzed., Results: Two hundred and twenty-four patients were in VOR and 241 in ITR, with similar demographic distributions (average age of 43 years, 58% male, 92% Caucasian). All-cause and study drug intolerance discontinuations were less frequent with VOR than ITR (50% vs 63%, p = 0.0137; 7% vs 22%, p < 0.0001). VOR patients had longer study drug exposure (median = 96 vs 68 days, p < 0.0001; mean = 68 vs 60 days, p = 0.0044). ITR patients were 2-times more likely (p = 0.0110) to use other antifungals vs VOR patients. Controlling for treatment and key baseline variables, longer IFI prophylaxis was associated with fewer hospital days (p < 0.0001) and less other antifungal use (p < 0.0001). Patients who discontinued prophylaxis during the first 100 days incurred 10 more hospital days (p < 0.0001) and 17 more other antifungal days (p < 0.0001) compared to their counterparts. Eight more prophylaxis days were associated with ∼1 less hospital day and 3.6 less other antifungal days (p < 0.0001). Key limitation: MRU data collection was limited to the first 100 days post-transplant, which may not fully capture the real-world utilization and outcomes., Conclusions: Patients' ability to tolerate and continue their antifungal prophylaxis after alloHCT is associated with less use of MRU such as other antifungals and hospital days. In the current resource-constrained healthcare environment, it is important to consider the potential economic impact of the tolerability of antifungal prophylaxis.

Objectives: Invasive aspergillosis (IA) is reported increasingly in non-traditional hosts, typically patients with chronic obstructive pulmonary disease (COPD). Objectives were to describe the excess burden of IA in COPD, including mortality, resource utilization, and costs, as well as to examine the impact of initial antifungal selection on clinical and economic outcomes., Methods: This retrospective cohort study used national data from 2005 to 2008, from the Premier Perspective hospital database. IA was identified using proxy ICD-9 codes based on published algorithms. The COPD + IA patient cohort was analyzed using descriptive statistics. Excess resource utilization was analyzed by matching cases (COPD + IA) and controls (COPD patients without aspergillosis) on demographic and clinical variables. Multivariate analyses were used to assess the impact of initial antifungal drug selection on outcomes in COPD + IA., Results: In total, 475 COPD + IA patients were identified (mean age 69 years, 50% male, 76% Caucasian). COPD + IA cases had significantly higher costs, length of stay, intensive care unit (ICU) stay, and mortality compared to COPD controls (all p < 0.01). On average, antifungal therapy was initiated on hospital day 6, with mean length of therapy 15 days, and one-third of patients were in the ICU when antifungal treatment was initiated. Most commonly used antifungals were voriconazole, fluconazole, and caspofungin. Patients receiving fluconazole as the initial antifungal, an agent inactive against moulds, had almost two times greater mortality (p = 0.016), two additional hospital days (p = 0.002), and 25% greater costs (p = 0.007), compared to patients receiving voriconazole first-line. Findings were consistent in sub-analyses including ICU patients., Limitations: 'Invasive' form of aspergillosis was identified using proxy ICD-9 codes based on published literature. Additional limitations stem from the study's non-randomized, retrospective design that is typical with any database analyses., Conclusions: COPD + IA patients had significantly higher mortality, resource utilization, and costs versus COPD controls. Treatment with an agent active against Aspergillus was associated with better survival and reduced economic burden, therefore this potential etiology of pneumonia should be considered when contemplating antifungal therapy in COPD patients.