Current medical research and opinion
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Aims: We aimed to assess treatment persistence of tumor necrosis factor (TNF) inhibitors and non-TNF inhibitors in two groups of rheumatoid arthritis (RA) patients: biologic disease-modifying antirheumatic drug (bDMARD) initiators and switchers. Patients and methods: This retrospective cohort study utilized a national health insurance claims database. Patients aged ≥18 years initiating/switching bDMARD between 1 December 2013 and 31 December 2014, the index period, were followed for 12 months. ⋯ Adalimumab and etanercept were significantly more likely to show non-persistence (HR 1.58, 95% CI 1.27-1.96; HR 1.42, 95% CI 1.14-1.76) compared to infliximab for initiators, while tocilizumab was significantly more likely to show persistence (HR 0.411, 95% CI 0.206-0.819) in switchers. Conclusions: Non-TNF inhibitors showed higher persistence rates than TNF inhibitors in South Korean RA patients, and tocilizumab especially was associated with higher persistence in patients with inadequate response to TNF inhibitors. Good persistence with non-TNF inhibitors indicates the potential for long-term efficacy as first-line treatment.
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Comparative Study
Time to treatment failure following initiation of fingolimod versus teriflunomide for multiple sclerosis: a retrospective US claims study.
Objective: Disease modifying therapies (DMTs) for multiple sclerosis (MS) aim to delay progression and reduce relapses. Evidence is limited on the comparative effectiveness of the oral DMTs fingolimod and teriflunomide. This study evaluated time to treatment failure among patients with MS who initiated fingolimod versus teriflunomide in real-world settings. ⋯ Median time to treatment failure was 19.5 months with fingolimod versus 9.6 months with teriflunomide (p < .001). After controlling key demographic and clinical characteristics through multivariable regression, fingolimod was associated with 38.9% lower hazards of treatment failure versus teriflunomide (adjusted hazard ratio = 0.611; 95% CI: 0.559-0.669; p < .001). Conclusions: In a large cohort of US adults with MS, controlling for key baseline characteristics, fingolimod was associated with significantly longer time to treatment failure and lower risk of treatment failure compared with teriflunomide.
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Comparative Study
Long-term safety, tolerability, and efficacy of magnesium valproate versus sodium valproate in acute seizures.
Objectives: To evaluate the safety, tolerability and efficacy of magnesium valproate and sodium valproate as monotherapies in patients with epilepsy in China. Methods: We recruited patients admitted with seizures over a two-year period. All patients underwent early neurological assessments, electroencephalogram testing, and neuroimaging. ⋯ The incidence of adverse events in the magnesium valproate group was significantly lower than that in the sodium valproate group (30% versus 51%). Conclusions: Magnesium valproate treatment shows favorable safety and tolerability and is associated with markedly improved seizure control. Ideally, future large, prospective, randomized, and double-blind studies are needed to confirm these findings.
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Objective: The purpose of this study is to assess the real-world impact of cardiac resynchronization therapy (CRT) on adherence to heart failure (HF) medications. Methods: MarketScan administrative health care claims data from 2008 to 2014 among patients with HF were used. The date of first CRT implantation served as the index date. ⋯ Large increases between the pre- and post-CRT period were also observed when considering adherence as dichotomized PDC ≥0.80 in the 12 months pre- versus post-CRT. Conclusion: Adherence to HF medications significantly improved among HF patients post-CRT implantation. Further research is needed to better understand the underlying determinants of this effect, including whether the effect is attributable to factors such as enhanced patient monitoring and improved access to high-quality specialized HF care among patients receiving CRT.
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Objective: To characterize the rate of healthcare resource utilization (HCRU) between anti-cyclic citrullinated peptide (CCP; a surrogate for anti-citrullinated protein antibodies [ACPAs]) positive (+) patients with rheumatoid arthritis (RA), either with or without erosions, who initiated biologic disease-modifying antirheumatic drug (bDMARD) treatment. Methods: Data from the Corrona RA registry, a prospective registry of adult patients with RA from 177 sites across 42 states in the US, were analyzed. Annual rates of HCRU (measured based on rates of all-cause hospitalization, joint surgery, imaging procedures and use of assistive devices) were estimated in anti-CCP + patients with and without erosions following bDMARD initiation using a Poisson regression model. ⋯ The rate of joint surgery visits was also numerically higher in patients with versus without erosion. Conclusions: ACPA seropositivity with erosive disease was associated with higher rates of HCRU compared with seropositivity without erosions. These findings suggest that providers may want to manage anti-CCP + patients aggressively to achieve better disease control to prevent the development of erosions and the associated increase in HCRU.