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Medication non-adherence can result in poor health outcomes. Understanding differences in adherence rates to non-vitamin K oral anticoagulants (NOACs) could guide treatment decisions and improve clinical outcomes among patients with non-valvular atrial fibrillation (NVAF). To compare adherence to rivaroxaban and apixaban among the overall NVAF population and subgroups of prior oral anticoagulant (OAC) users (e.g., multiple comorbidities, non-adherence risk factors). Using healthcare claims from the Truven Health Analytics MarketScan (7/2012-7/2015), adult patients with ≥2 dispensings of rivaroxaban or apixaban ≥ 180 days apart with > 60 days of supply, ≥ 6 months of pre- and post-index eligibility, ≥ 1 atrial fibrillation diagnosis pre- or on the index date, and without valvular involvement were identified. Propensity-score methods adjusting for potential baseline confounders were used to create matched cohorts of rivaroxaban and apixaban patients. Adherence was assessed during the implementation phase using the percentage of patients with proportion of days covered (PDC) ≥0.8 at 6 months. Subgroups of patients with prior OAC use were evaluated; additional subgroups were identified and evaluated by Quan-Charlson Comorbidity index ≥2 and presence of non-adherence risk factors (i.e., mental disorders, stress, isolation, and rheumatoid arthritis). A total of 13,890 NVAF subjects were included in each of the 2 matched cohorts. All baseline characteristics were balanced between cohorts. At 6 months, significantly more rivaroxaban users were adherent to treatment compared to apixaban users (81.8% vs. 78.0%; absolute difference of 3.8%; p<.001). Rivaroxaban users had significantly higher adherence rates in all subgroups examined. Rivaroxaban users had consistently higher adherence rates than apixaban users overall and among all NVAF subgroups examined.

Clinical guidelines recommend early discharge of patients with low-risk pulmonary embolism (LRPE). This study measured the overall impact of early discharge of LRPE patients on clinical outcomes and costs in the Veterans Health Administration population. Adult patients with ≥1 inpatient diagnosis for pulmonary embolism (PE) (index date) between 10/2011-06/2015, continuous enrollment for ≥12 months pre- and 3 months post-index date were included. PE risk stratification was performed using the simplified Pulmonary Embolism Stratification Index. Propensity score matching (PSM) was used to compare 90-day adverse PE events (APEs) [recurrent venous thromboembolism, major bleed and death], hospital-acquired complications (HACs), healthcare utilization, and costs among short (≤2 days) versus long length of stay (LOS). Net clinical benefit was defined as 1 minus the combined rate of APE and HAC. Among 6,746 PE patients, 95.4% were men, 22.0% were African American, and 1,918 had LRPE. Among LRPE patients, only 688 had a short LOS. After 1:1 PSM, there were no differences in APE, but short LOS had fewer HAC (1.5% vs 13.3%, 95% CI: 3.77-19.94) and bacterial pneumonias (5.9% vs 11.7%, 95% CI: 1.24-3.23), resulting in better net clinical benefit (86.9% vs 78.3%, 95% CI: 0.84-0.96). Among long LOS patients, HACs (52) exceeded APEs (14 recurrent DVT, 5 bleeds). Short LOS incurred lower inpatient ($2,164 vs $5,100, 95% CI: $646.8-$5225.0) and total costs ($9,056 vs $12,544, 95% CI: $636.6-$6337.7). LRPE patients with short LOS had better net clinical outcomes at lower costs than matched LRPE patients with long LOS.

Non-vitamin K antagonist oral anticoagulant medications are increasingly used for stroke prophylaxis in patients with nonvalvular atrial fibrillation (NVAF). This study aimed to compare adherence with rivaroxaban and apixaban among patients with NVAF in routine clinical practice. Using pharmacy and medical claims from Truven Health Analytics MarketScan databases, we identified NVAF patients aged ≥18 years treated with rivaroxaban or apixaban. Baseline demographic and clinical features were balanced using 1:1 propensity score matching. Adherence to therapy was measured at 90 and 180 days post-index date and was defined by the proportion of days covered (PDC) ≥0.80 and PDC ≥0.90. “Gaps in care,” defined as those with 10 or more day gaps in supply, were also evaluated. Between June 2012 and April 2014, 11,477 rivaroxaban and 2992 apixaban users were identified. Baseline characteristics for rivaroxaban and apixaban users were well matched. Relative to apixaban users, rivaroxaban users were more likely to have a PDC ≥0.80 at both 90 days (85.3% vs 79.9%; P < 0.001) and 180 days (75.8% vs 72.2%; P = 0.001). Similar results were observed with PDC ≥0.90. The proportion of patients with at least one 5+ and 10+ day gap in prescriptions was significantly lower in the rivaroxaban versus apixaban cohorts: 54.2% versus 62.4% (P < 0.001) and 40.0% versus 49.2% (P < 0.001), respectively. Adherence to non-vitamin K antagonist oral anticoagulants among NVAF patients is less than ideal, and gaps in treatment are common. Those on once-a-day rivaroxaban had significantly higher adherence and fewer gaps in treatment compared with twice-a-day apixaban. Future studies are needed to explore whether these treatment differences affect comparative patient outcomes.

Background The potential association of long‐term oral corticosteroid (OCS) use with adverse events (AEs) in patients with bullous pemphigoid (BP) is not well characterized in a real‐world setting. Objectives To evaluate the effect of OCS use and treatment duration on the incident AEs in patients with BP. Methods This retrospective cohort study used medical and pharmacy claims and patient enrollment data from IQVIA PharMetrics® Plus from 2006−2021. Eligible patients had a diagnosis of BP between 1 January 2006 and 30 June 2020 (≥2 claims for BP ≥ 30 days apart). Patients in the OCS cohort also had a claim for OCS use, ≥7.5 mg daily dose of prednisone or equivalent, and no claims for a nonoral systemic corticosteroid (CS) at any time during the study period. A control cohort of patients with BP not using OCS was also selected. Relative risk ratios were estimated between the incidence of AEs in OCS users with different exposure durations (short‐term, <30 days; medium‐term, 30−90 days; long‐term, >90 days) and nonusers by Poisson regression, after adjusting for age, sex, prior drug use, and baseline Charlson Comorbidity Index score within the follow‐up period. Results At the 1‐year follow‐up, long‐term OCS users had a higher incidence of infections, cataract, osteoporosis, heart failure, depression or anxiety, and diabetes compared with OCS nonusers (p < 0.05). Furthermore, compared with nonusers, long‐term users had increased 1‐year risks (risk ratio; 95% confidence interval) for heart failure (2.27; 1.50−3.44), diabetes (2.05; 1.30−3.24), osteoporosis (1.72; 1.23−2.41), and infection (1.50; 1.13−1.99). Long‐term OCS users also had increased 1‐year risks for heart failure (2.00; 1.21−3.28) and osteoporosis (1.70; 1.16−2.50) compared with short‐term OCS users. Conclusions Long‐term OCS use (≥7.5 mg) in patients with BP was associated with an increased risk of AEs. Study findings demonstrate a need for steroid‐sparing options with an improved safety profile.

Introduction Ciltacabtagene autoleucel (cilta‐cel) is a novel chimeric antigen receptor T‐cell therapy that is being evaluated in the CARTITUDE‐1 trial (NCT03548207) in patients with relapsed or refractory multiple myeloma (RRMM) who received as part of their previous therapy an immunomodulatory drug, proteasome inhibitor, and an anti‐CD38 monoclonal antibody (i.e., triple‐class exposed). Given the absence of a control arm in CARTITUDE‐1, this study assessed the comparative effectiveness of cilta‐cel and physician's choice of treatment (PCT) using an external real‐world control arm from the Flatiron Health multiple myeloma cohort registry. Methods Given the availability of individual patient data for cilta‐cel from CARTITUDE‐1 and PCT in Flatiron, inverse probability of treatment weighting was used to adjust for unbalanced baseline covariates of prognostic significance: refractory status, cytogenetic profile, International Staging System stage, time to progression on last regimen, number of prior lines of therapy, years since diagnosis, and age. Comparative effectiveness was estimated for progression‐free survival (PFS), time to next treatment (TTNT), and overall survival (OS). A range of sensitivity analyses were conducted. Results Baseline characteristics were similar between the two cohorts after propensity score weighting. Patients with cilta‐cel had improved PFS (HR: 0.18 [95% CI: 0.12, 0.27; p < 0.0001]), TTNT (HR: 0.15 [95% CI: 0.09, 0.22; p < 0.0001]), and OS (HR: 0.25 [95% CI: 0.13, 0.46; p < 0.0001]) versus PCT. Cilta‐cel treatment benefit was robust and consistent across all sensitivity analyses. Conclusion Cilta‐cel demonstrated significantly superior effectiveness over PCT for all outcomes, highlighting its potential as an effective therapy in patients with triple‐class exposed RRMM.

Using real-world data, this study compares inpatient length of stay (LOS) and costs for patients with a primary diagnosis of pulmonary embolism (PE) initiating treatment with oral anticoagulation with rivaroxaban versus warfarin. Hospitalizations from MarketScan’s Hospital Drug Database were selected from November 1, 2012, through December 31, 2013, for adults with a primary diagnosis of PE initiating treatment with rivaroxaban or warfarin. Warfarin patients were matched 1:1 to rivaroxaban patients using exact and propensity score matching. Hospital LOS, treatment patterns, and hospitalization costs were evaluated. Matched cohorts included 751 rivaroxaban-treated patients and 751 warfarin-treated patients. Adjusted mean LOS was 3.77 days for rivaroxaban patients (95% CI, 3.66–3.87 days) and 5.48 days for warfarin patients (95% CI, 5.33–5.63 days; P < .001). Mean (SD) LOS was shorter for patients taking rivaroxaban whether admission was for provoked PE (rivaroxaban: 5.2 [5.1] days; warfarin: 7.0 [6.5] days; P < .001) or unprovoked PE (rivaroxaban: 3.4 [2.3] days; warfarin: 5.1 [2.7] days; P < .001). Mean (SD) days from first dose to discharge were 2.5 (1.7) (rivaroxaban) and 4.0 (2.9) (warfarin) when initiated with parenteral anticoagulants (P < .001) and 2.7 (1.7) (rivaroxaban) and 4.0 (2.2) (warfarin) without parenteral anticoagulants (P < .001). The rivaroxaban cohort incurred significantly lower unadjusted mean (SD) hospitalization costs (rivaroxaban: $8473 [$9105]; warfarin: $10,291 [$9185]; P < .001), confirmed by covariate adjustment with generalized linear modeling estimating predicted mean hospitalization costs of $8266 for rivaroxaban patients (95% CI, $7851–$8681) and $10,511 for warfarin patients (95% CI, $10,031–$10,992; P < .001). patients with PE treated with rivaroxaban incurred significantly lower hospitalization costs by $2245 per admission compared with patients treated with warfarin, which was attributable to cost offsets from 1.71 fewer days of stay in the hospital.

Introduction: There are limited studies evaluating the ability of the Hestia criteria to accurately identify patients with acute pulmonary embolism (PE) at low risk of early mortality. We sought to externally validate the Hestia criteria for predicting in-hospital and 30-day post-PE mortality. Methods: We retrospectively identified consecutive, adult, objectively confirmed PE patients presenting to the emergency department at our institution from November 21, 2010, to January 31, 2014. We ascertained the total number of Hestia criteria met for each patient, calculated the proportion of patients categorized as low risk (ie, no Hestia criteria met), and determined the accuracy of the Hestia criteria for predicting in-hospital and 30-day all-cause mortality. Mortality was determined through Social Security Death Index searches. Results: A total of 577 patients with PE were included, of which 19 (3.3%) and 35 (6.6%) died in hospital or within 30 days of presentation. Both in-hospital and 30-day case fatality rates rose as the number of Hestia criteria increased. One-hundred forty nine (25.8%) patients were classified as low risk for early mortality, and none of these patients died within 30 days (negative predictive values of 100%). The Hestia criteria had excellent sensitivity (100%, 95% confidence interval [CI] = 79.1%-100% and 100%, 95% CI = 87.7%-100%) for predicting in-hospital and 30-day mortality but low specificity (<27.5% for both). The c-statistics for in-hospital and 30-day mortality were 83.5%, 95% CI = 77.1%-89.9% and 78.5%, 95% CI = 71.9%-85.1%. The predictive accuracy of the Hestia criteria remained acceptable in patients >80 years of age, with active cancer or chronic cardiopulmonary disease. Conclusion: The Hestia criteria have an acceptable predictive accuracy to identify patients with PE at low risk for in-hospital or 30-day mortality.

Compared with low-molecular-weight heparin (LMWH) and warfarin, the oral anticoagulant rivaroxaban has advantages, such as simplified care, that may lead to less health care resource utilization. A retrospective, matched-cohort analysis was conducted using claims dated between January 2011 and December 2013 from the Truven Health Analytics MarketScan databases. Adult patients who had a primary diagnosis of deep vein thrombosis (DVT) during an outpatient or emergency room (ER) visit after November 2, 2012, and who were treated with rivaroxaban or LMWH/warfarin on the same day, were identified. Patients were observed over 1, 2, 3, and 4 weeks after the DVT diagnosis. The mean numbers of hospitalizations for all causes and for venous thromboembolism (VTE) (which included those for DVT or pulmonary embolism), as well as other health care resource utilization (ER, outpatient, and other visits), and the associated health care costs and pharmacy costs, were evaluated and compared between cohorts using the Lin method. All of the 512 rivaroxaban-treated patients were well matched with the LMWH/warfarin-treated patients. The mean numbers of all-cause hospitalizations were significantly lower in the rivaroxaban users compared with those in the LMWH/warfarin users over 1 week (0.012 vs 0.032; P = 0.044) and 2 weeks (0.022 vs 0.048; P = 0.040). The corresponding mean numbers of VTE-related hospitalizations were significantly lower with rivaroxaban over 1 week (0.008 vs 0.028; P = 0.020), 2 weeks (0.016 vs 0.042; P = 0.020), and 4 weeks (0.034 vs 0.068; P = 0.036). The mean numbers of all-cause and VTE-related outpatient visits were also significantly lower in rivaroxaban users compared with those in LMWH/warfarin users over 1, 2, 3, and 4 weeks (all, P < 0.001). In terms of all-cause and VTE-related ER and other visits, no statistically significant differences were found between cohorts over the first 4 weeks. The associated mean all-cause total health care costs were significantly lower in the rivaroxaban users compared with those in the LMWH/warfarin users over 1 week (US $2332 vs $3428; P < 0.001) and 2 weeks ($3108 vs $4524; P < 0.001); moreover, significantly lower mean costs related to all-cause hospitalizations (weeks 1 and 2) and pharmacy (weeks 1–4) were observed in patients treated with rivaroxaban, while no differences were found in costs related to ER visits (weeks 1–4), outpatient visits (weeks 1–4), or other visits (with the exception of week 1). Patients with DVT treated with rivaroxaban after an outpatient/ER visit had significantly lower mean numbers of hospitalizations and outpatient visits, as well as lower mean total, hospitalization, and pharmacy costs during the first 2 weeks of treatment compared with those in matched LMWH/warfarin users.

Compared with warfarin, the new target-specific oral anticoagulant agents may have advantages, such as shorter hospital length of stay, in patients with nonvalvular atrial fibrillation (NVAF). The objective of the present study was to assess, among patients with NVAF, the effects of rivaroxaban versus warfarin on the number of hospitalization days and other health care resource utilization in a cohort of rivaroxaban users and matched warfarin users. Data from health care claims dated from May 2011 to December 2012 from the Humana database were analyzed. Adult patients newly initiated on treatment with rivaroxaban or warfarin, with ≥2 diagnoses of AF (ICD-9-CM code 427.31), and without valvular AF were identified. Based on propensity score methods, warfarin recipients were matched 1:1 to rivaroxaban recipients. The end of the observation period was defined as the end of data availability, the end of insurance coverage, death, the date of a switch to another anticoagulant agent, or day 14 of treatment nonpersistence. The total number of hospitalization days and other health care resource utilization parameters (numbers of hospitalizations, emergency department [ED] visits, and outpatient visits) were evaluated using the method by Lin et al. Matches for all rivaroxaban recipients were found, and the characteristics of the matched groups (n = 2253 per group) were well balanced. The mean age of both cohorts was 74 years; 46% were female. The estimated mean total numbers of hospitalization days were significantly less in rivaroxaban users compared with those in warfarin users (all-cause, 2.71 vs 3.87 days [P = 0.032]; AF-related, 2.11 vs 3.02 days [P = 0.014]). The numbers of outpatient visits were also significantly less (all-cause, 25.26 vs 35.79 visits [P < 0.001]; AF-related, 5.48 vs 9.06 visits [P < 0.001]). Rivaroxaban users had a lesser estimated mean number of all-cause hospitalizations compared with warfarin users (0.55 vs 0.73; P = 0.084), and a significantly lesser estimated mean number of AF-related hospitalizations (0.40 vs 0.57; P = 0.022). The difference in the estimated mean numbers of all-cause ED visits was not statistically significant between the rivaroxaban and warfarin users. In this study conducted in clinical practice, the estimated mean numbers of hospitalization days, outpatient visits, and AF-related hospitalizations associated with rivaroxaban were significantly less than were those associated with warfarin in these patients with NVAF. The corresponding estimated difference in all-cause ED visits was not statistically significant.