Drug-associated progressive multifocal leukoencephalopathy in multiple sclerosis patients

2018 ◽  
Vol 25 (8) ◽  
pp. 1141-1149 ◽  
Author(s):  
Yasuo Oshima ◽  
Tetsuya Tanimoto ◽  
Koichiro Yuji ◽  
Arinobu Tojo

Objective: To investigate characteristics of multifocal leukoencephalopathy (PML) in multiple sclerosis (MS) patients associated with drugs other than natalizumab since our experience in other disease-modifying drugs (DMD) is still limited. Methods: This is a descriptive observational study within the FAERS database, registered between July 2015 and June 2017. Results: The primary cohort for the analysis consisted of 100,921 MS patients (mean (standard deviation (sd)) age, 48.9 (12.8) years, 20.9% male). Among them 786 (0.78%) developed PML. The adjusted odds ratio of PML for each drug was as follows; natalizumab 115.72 (95% CI; 83.83, 159.74), fingolimod 4.98 (3.64, 6.81) followed by dimethyl fumarate 1.77 (1.2, 2.62) and rituximab 3.22 (1.07, 9.72). The median time from the start of suspected drugs to the onset of PML for natalizumab and other agents were 1463 and 178 days, respectively. The proportion of PML appeared higher in Japan (2.4%) compared to that in the United States (0.24%). Conclusion: The reporting proportion of PML was relatively higher in natalizumab followed by fingolimod, dimethyl fumarate and rituximab. Other characteristics of PML associated with DMDs, including the time to onset and differences in reporting among countries, are described.

2019 ◽  
Vol 12 ◽  
pp. 1179173X1882526 ◽  
Author(s):  
Baksun Sung

Background: Numerous studies have reported that shorter time to first cigarette (TTFC) is linked to elevated risk for smoking-related morbidity. However, little is known about the influence of early TTFC on self-reported health among current smokers. Hence, the objective of this study was to examine the association between TTFC and self-reported health among US adult smokers. Methods: Data came from the 2012-2013 National Adult Tobacco Survey (NATS). Current smokers aged 18 years and older (N = 3323) were categorized into 2 groups based on TTFC: ≤ 5 minutes (n = 1066) and >5 minutes (n = 2257). Propensity score matching (PSM) was used to control selection bias. Results: After adjusting for sociodemographic and smoking behavior factors, current smokers with early TTFC had higher odds for poor health in comparison with current smokers with late TTFC in the prematching (adjusted odds ratio [AOR] = 1.65; 95% confidence interval [CI] = 1.31-2.08) and postmatching (AOR = 1.60; 95% CI = 1.22-2.09) samples. Conclusions: In conclusion, smokers with early TTFC were associated with increased risk of poor health in the United States. To reduce early TTFC, elaborate efforts are needed to educate people about harms of early TTFC and benefits of stopping early TTFC.


Stroke ◽  
2021 ◽  
Author(s):  
Ying Xian ◽  
Haolin Xu ◽  
Eric E. Smith ◽  
Jeffrey L. Saver ◽  
Mathew J. Reeves ◽  
...  

Background and Purpose: The benefits of tPA (tissue-type plasminogen activator) in acute ischemic stroke are time-dependent. However, delivery of thrombolytic therapy rapidly after hospital arrival was initially occurring infrequently in hospitals in the United States, discrepant with national guidelines. Methods: We evaluated door-to-needle (DTN) times and clinical outcomes among patients with acute ischemic stroke receiving tPA before and after initiation of 2 successive nationwide quality improvement initiatives: Target: Stroke Phase I (2010–2013) and Target: Stroke Phase II (2014–2018) from 913 Get With The Guidelines-Stroke hospitals in the United States between April 2003 and September 2018. Results: Among 154 221 patients receiving tPA within 3 hours of stroke symptom onset (median age 72 years, 50.1% female), median DTN times decreased from 78 minutes (interquartile range, 60–98) preintervention, to 66 minutes (51–87) during Phase I, and 50 minutes (37–66) during Phase II ( P <0.001). Proportions of patients with DTN ≤60 minutes increased from 26.4% to 42.7% to 68.6% ( P <0.001). Proportions of patients with DTN ≤45 minutes increased from 10.1% to 17.7% to 41.4% ( P <0.001). By the end of the second intervention, 75.4% and 51.7% patients achieved 60-minute and 45-minute DTN goals. Compared with the preintervention period, hospitals during the second intervention period (2014–2018) achieved higher rates of tPA use (11.7% versus 5.6%; adjusted odds ratio, 2.43 [95% CI, 2.31–2.56]), lower in-hospital mortality (6.0% versus 10.0%; adjusted odds ratio, 0.69 [0.64–0.73]), fewer bleeding complication (3.4% versus 5.5%; adjusted odds ratio, 0.68 [0.62–0.74]), and higher rates of discharge to home (49.6% versus 35.7%; adjusted odds ratio, 1.43 [1.38–1.50]). Similar findings were found in sensitivity analyses of 185 501 patients receiving tPA within 4.5 hours of symptom onset. Conclusions: A nationwide quality improvement program for acute ischemic stroke was associated with substantial improvement in the timeliness of thrombolytic therapy start, increased thrombolytic treatment, and improved clinical outcomes.


2019 ◽  
Vol 33 (9) ◽  
pp. 1058-1067 ◽  
Author(s):  
James D Sexton ◽  
Michael S Crawford ◽  
Noah W Sweat ◽  
Allyson Varley ◽  
Emma E Green ◽  
...  

Background: Novel psychedelics approximate classic psychedelics, but unlike classic psychedelics, novel psychedelics have been used by humans for a shorter period of time, with fewer data available on these substances. Aims: The purpose of this study was to determine the prevalence of novel psychedelic use and the associations of novel psychedelic use with mental health outcomes. Methods: We estimated the prevalence of self-reported, write-in lifetime novel psychedelic use and evaluated the associations of novel psychedelic use with psychosocial characteristics, past month psychological distress, and past year suicidality among adult respondents pooled from years 2008–2016 of the National Survey on Drug Use and Health (weighted n=234,914,788). Results: A fraction (weighted n=273,720; 0.12%) reported lifetime novel psychedelic use. This cohort tended to be younger, male, and White, have greater educational attainment but less income, be more likely to have never been married, engage in self-reported risky behavior, and report lifetime illicit use of other drugs, particularly classic psychedelics (96.9%). (2-(4-Bromo-2,5-dimethoxyphenyl)ethanamine) (2C-B) (30.01%), (2,5-dimethoxy-4-iodophenethylamine) (2C-I) (23.9%), and (1-(2,5-dimethoxy-4-ethylphenyl)-2-aminoethane) (2C-E) (14.8%) accounted for the majority of lifetime novel psychedelic use. Although lifetime novel psychedelic use was not associated with psychological distress or suicidality compared to no lifetime novel psychedelic use or classic psychedelic use, relative to lifetime use of classic psychedelics but not novel psychedelics, lifetime novel psychedelic use was associated with a greater likelihood of past year suicidal thinking (adjusted Odds Ratio (aOR)=1.4 (1.1–1.9)) and past year suicidal planning (aOR=1.6 (1.1–2.4)). Conclusion: Novel psychedelics may differ from classic psychedelics in meaningful ways, though additional, directed research is needed.


2009 ◽  
Vol 15 (11) ◽  
pp. 1286-1294 ◽  
Author(s):  
PJ Veugelers ◽  
JD Fisk ◽  
MG Brown ◽  
K. Stadnyk ◽  
IS Sketris ◽  
...  

Randomized controlled trials have demonstrated the efficacy of disease-modifying drugs (DMDs) in persons with relapsing—remitting multiple sclerosis (MS) and secondary progressive MS with superimposed relapses. However, these brief studies of selected patients have focused mainly on reducing attacks and must be complemented by evaluations in ‘realworld’ clinical settings to establish the effectiveness of DMD programs in slowing disease progression and to inform health policy and program decision-making. We assessed the effectiveness of DMDs as administered in a comprehensive publicly funded drug insurance program that provides DMDs to a geographically defined population of MS patients who meet specific eligibility criteria. Data from 1752 MS patients (10,312 assessments) seen between 1980 and 2004 at a regional MS Clinic serving the entire population of Nova Scotia, Canada were analysed. Using survival methods we observed a statistically significant reduction in disease progression to specific Expanded Disability Status Scale endpoints following the introduction of this program. Subgroup analyses of patients eligible for treatment using hierarchical linear regression methods also suggested that disease progression was slowed in patients treated with the first DMD prescribed. These findings provide evidence supporting DMD program effectiveness that can be used to inform the broader implementation of such programs.


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