89 research outputs found
Effectiveness and safety of adjunctive cenobamate in people with focal-onset epilepsy: Interim results after 24-week observational period from the BLESS study
Objective: Cenobamate is an antiseizure medication (ASM) with a dual mechanism of action that was recently approved for the treatment of focal seizures in adults. This analysis aimed to describe the outcomes at 12 and 24 weeks after starting cenobamate therapy in a real-world setting. Methods: BLESS [NCT05859854] is an ongoing, observational, retrospective and prospective cohort study to evaluate the real-world effectiveness and safety of adjunctive cenobamate in adults with uncontrolled focal epilepsy. Subgroup analysis was performed in subjects with 2 to 3 previous ASMs (early users) and those with >3 previous ASMs (late users). Results: The second interim analysis of the BLESS study included 388 participants with a median (interquartile range) age of 43.0 (31.0-54.0) years. They had a median of 6.0 (4.0-9.0) prior ASMs and a median of 7.2 (3.0-20.6) monthly seizures at baseline. The median monthly seizure frequency was reduced by 59.9% (19.2%-87.3%) from baseline to 24 weeks; 229 (59.0%) subjects had a >= 50% seizure frequency reduction, and 44 (11.3%) showed sustained seizure freedom. The proportion of participants taking <= 2 concomitant ASMs increased from 217 (56.5%) at baseline to 239 (65.7%) at 24 weeks. Among the early users (n = 76, 19.6%), the median reduction in monthly seizure frequency at 24 weeks was 78.0% (50.0-97.1%), and 76.3% of subjects had a >= 50% response rate. The frequency of adverse drug reactions (ADRs) was 5.3% and 23.4% in early and late users. The most frequent ADRs were somnolence, dizziness, and balance disorder; after the occurrence of ADRs, 63.5% of participants maintained the prescribed dose, and 5.2% permanently discontinued treatment. Significance: Cenobamate was effective in reducing seizure frequency in a real-world setting and showed a manageable safety profile. The treatment with cenobamate also reduced the burden of concomitant ASMs in both early and late users
Expression of 19 microRNAs in glioblastoma and comparison with other brain neoplasia of grades I-III
Several biomarkers have been proposed as useful parameters to better specify the prognosis or to delineate new target therapy strategies for glioblastoma patients. MicroRNAs could represent putative target molecules, considering their role in tumorigenesis, cancer progression and their specific tissue expression. Although several studies have tried to identify microRNA signature for glioblastoma, a microRNA profile is still far from being well-defined. In this work the expression of 19 microRNAs (miR-7, miR-9, miR-9 17, miR-10a, miR-10b, miR-17, miR-20a, miR-21, miR-26a, miR-27a, miR-31, miR-34a, miR-101, miR-137, miR-182, miR-221, miR-222, miR-330, miR-519d) was evaluated in sixty formalin-fixed and paraffin-embedded glioblastoma samples using a locked nucleic acid real-time PCR. Moreover, a comparison of miRNA expressions was performed between primary brain neoplasias of different grades (grades IV-I). The analysis of 14 validated miRNA expression in the 60 glioblastomas, using three different non-neoplastic references as controls, revealed a putative miRNA signature: mir-10b and miR-21 were up-regulated, while miR-7, miR-31, miR-101, miR-137, miR-222 and miR-330 were down-regulated in glioblastomas. Comparing miRNA expression between glioblastoma group and gliomas of grades I-III, 3 miRNAs (miR-10b, mir-34a and miR-101) showed different regulation statuses between high-grade and low-grade tumors. miR-10b was up-regulated in high grade and significantly down-regulated in low-grade gliomas, suggesting that could be a candidate for a GBM target therapy. This study provides further data for the identification of a miRNA profile for glioblastoma and suggests that different-grade neoplasia could be characterized by different expression of specific miRNA
miRNAs Expression Analysis in Paired Fresh/Frozen and Dissected Formalin Fixed and Paraffin Embedded Glioblastoma Using Real-Time PCR
miRNAs are small molecules involved in gene regulation. Each tissue shows a characteristic miRNAs epression profile that could be altered during neoplastic transformation. Glioblastoma is the most aggressive brain tumour of the adult with a high rate of mortality. Recognizing a specific pattern of miRNAs for GBM could provide further boost for target therapy. The availability of fresh tissue for brain specimens is often limited and for this reason the possibility of starting from formalin fixed and paraffin embedded tissue (FFPE) could very helpful even in miRNAs expression analysis. We analysed a panel of 19 miRNAs in 30 paired samples starting both from FFPE and Fresh/Frozen material. Our data revealed that there is a good correlation in results obtained from FFPE in comparison with those obtained analysing miRNAs extracted from Fresh/Frozen specimen. In the few cases with a not good correlation value we noticed that the discrepancy could be due to dissection performed in FFPE samples. To the best of our knowledge this is the first paper demonstrating that the results obtained in miRNAs analysis using Real-Time PCR starting from FFPE specimens of glioblastoma are comparable with those obtained in Fresh/Frozen samples
Adjunctive Brivaracetam in People with Epilepsy and Intellectual Disability: Evidence from the BRIVAracetam Add-On First Italian netwoRk Study
Introduction: Subjects with intellectual disability are usually excluded from clinical trials and there is limited evidence-based guidance for the choice of antiseizure medications in this vulnerable population. The study explored the effectiveness of brivaracetam (BRV) in people with epilepsy and intellectual disability. Methods: BRIVAracetam add-on First Italian netwoRk Study (BRIVAFIRST) was a 12-month retrospective, multicenter study including adults prescribed adjunctive BRV. Main outcomes included the rates of seizure‐freedom, seizure response (≥ 50% reduction in baseline seizure frequency), and treatment discontinuation. The occurrence of adverse events (AEs) was also considered. Analyses by the presence and severity of intellectual disability were performed. Results: Subjects with intellectual disability were 253 (24.6%) out of 1029 participants. The 12-month rates of seizure freedom were 18.4% and 10.3% in participants without and with intellectual disability, respectively; the corresponding values for seizure response were 40.0% and 28.9%. Intellectual disability was not an independent predictor of seizure outcomes. The rates of treatment discontinuation were 25.8% and 26.4% in participants without and with intellectual disability. respectively. There were no statistically significant differences in the rates of any AEs, somnolence, nervousness/agitation, and aggressiveness by the presence and degree of intellectual disability. Conclusion: Brivaracetam can be a suitable treatment option and offer opportunities for clinical improvement in subjects with intellectual disability and uncontrolled seizures
Sustained seizure freedom with adjunctive brivaracetam in patients with focal onset seizures
The maintenance of seizure control over time is a clinical priority in patients with epilepsy. The aim of this study was to assess the sustained seizure frequency reduction with adjunctive brivaracetam (BRV) in real-world practice. Patients with focal epilepsy prescribed add-on BRV were identified. Study outcomes included sustained seizure freedom and sustained seizure response, defined as a 100% and a ≥50% reduction in baseline seizure frequency that continued without interruption and without BRV withdrawal through the 12-month follow-up. Nine hundred ninety-four patients with a median age of 45 (interquartile range = 32–56) years were included. During the 1-year study period, sustained seizure freedom was achieved by 142 (14.3%) patients, of whom 72 (50.7%) were seizure-free from Day 1 of BRV treatment. Sustained seizure freedom was maintained for ≥6, ≥9, and 12 months by 14.3%, 11.9%, and 7.2% of patients from the study cohort. Sustained seizure response was reached by 383 (38.5%) patients; 236 of 383 (61.6%) achieved sustained ≥50% reduction in seizure frequency by Day 1, 94 of 383 (24.5%) by Month 4, and 53 of 383 (13.8%) by Month 7 up to Month 12. Adjunctive BRV was associated with sustained seizure frequency reduction from the first day of treatment in a subset of patients with uncontrolled focal epilepsy
Adjunctive Brivaracetam in Focal Epilepsy: Real-World Evidence from the BRIVAracetam add-on First Italian netwoRk STudy (BRIVAFIRST)
Background: In randomized controlled trials, add-on brivaracetam (BRV) reduced seizure frequency in patients with drug-resistant focal epilepsy. Studies performed in a naturalistic setting are a useful complement to characterize the drug profile. Objective: This multicentre study assessed the effectiveness and tolerability of adjunctive BRV in a large population of patients with focal epilepsy in the context of real-world clinical practice. Methods: The BRIVAFIRST (BRIVAracetam add-on First Italian netwoRk STudy) was a retrospective, multicentre study including adult patients prescribed adjunctive BRV. Patients with focal epilepsy and 12-month follow-up were considered. Main outcomes included the rates of seizure‐freedom, seizure response (≥ 50% reduction in baseline seizure frequency), and treatment discontinuation. The incidence of adverse events (AEs) was also considered. Analyses by levetiracetam (LEV) status and concomitant use of strong enzyme-inducing antiseizure medications (EiASMs) and sodium channel blockers (SCBs) were performed. Results: A total of 1029 patients with a median age of 45 years (33–56) was included. At 12 months, 169 (16.4%) patients were seizure-free and 383 (37.2%) were seizure responders. The rate of seizure freedom was 22.3% in LEV-naive patients, 7.1% in patients with prior LEV use and discontinuation due to insufficient efficacy, and 31.2% in patients with prior LEV use and discontinuation due to AEs (p < 0.001); the corresponding values for ≥ 50% seizure frequency reduction were 47.9%, 29.7%, and 42.8% (p < 0.001). There were no statistically significant differences in seizure freedom and seizure response rates by use of strong EiASMs. The rates of seizure freedom (20.0% vs. 16.6%; p = 0.341) and seizure response (39.7% vs. 26.9%; p = 0.006) were higher in patients receiving SCBs than those not receiving SCBs; 265 (25.8%) patients discontinued BRV. AEs were reported by 30.1% of patients, and were less common in patients treated with BRV and concomitant SCBs than those not treated with SCBs (28.9% vs. 39.8%; p = 0.017). Conclusion: The BRIVAFIRST provided real-world evidence on the effectiveness of BRV in patients with focal epilepsy irrespective of LEV history and concomitant ASMs, and suggested favourable therapeutic combinations
Pattern of care and effectiveness of treatment for glioblastoma patients in the real world: Results from a prospective population-based registry. Could survival differ in a high-volume center?
BACKGROUND:
As yet, no population-based prospective studies have been conducted to investigate the incidence and clinical outcome of glioblastoma (GBM) or the diffusion and impact of the current standard therapeutic approach in newly diagnosed patients younger than aged 70 years.
METHODS:
Data on all new cases of primary brain tumors observed from January 1, 2009, to December 31, 2010, in adults residing within the Emilia-Romagna region were recorded in a prospective registry in the Project of Emilia Romagna on Neuro-Oncology (PERNO). Based on the data from this registry, a prospective evaluation was made of the treatment efficacy and outcome in GBM patients.
RESULTS:
Two hundred sixty-seven GBM patients (median age, 64 y; range, 29-84 y) were enrolled. The median overall survival (OS) was 10.7 months (95% CI, 9.2-12.4). The 139 patients 64aged 70 years who were given standard temozolomide treatment concomitant with and adjuvant to radiotherapy had a median OS of 16.4 months (95% CI, 14.0-18.5). With multivariate analysis, OS correlated significantly with KPS (HR = 0.458; 95% CI, 0.248-0.847; P = .0127), MGMT methylation status (HR = 0.612; 95% CI, 0.388-0.966; P = .0350), and treatment received in a high versus low-volume center (HR = 0.56; 95% CI, 0.328-0.986; P = .0446).
CONCLUSIONS:
The median OS following standard temozolomide treatment concurrent with and adjuvant to radiotherapy given to (72.8% of) patients aged 6470 years is consistent with findings reported from randomized phase III trials. The volume and expertise of the treatment center should be further investigated as a prognostic factor
DEVELOPMENT INTEGRATED INDUCTIVE SENSORS FOR MAGNETIC IMMUNOASSAY IN "LAB ON CHIP" DEVICES
Monday preference in onset of ischemic stroke.
The onset of stroke has a specific temporal pattern, characterized by a higher frequency in winter and in the mornings. According to a meta-analysis of more than 11,000 patients, an estimated 37% of strokes occurred during morning hours. Variability of the day of week has not been extensively investigated, however. To verify a temporal weekly pattern, we reviewed all cases of stroke admitted to our hospital during a 4-year period.
Methods
Ferrara is a town in northeastern Italy with a population of 150,000. The only hospital is St. Anna Hospital, the teaching hospital for the University of Ferrara. House calls are made by family physicians during the daytime hours and by Emergency Department physicians during nighttime hours and on holidays at no charge to patients. Key physicians, including neurologists and neurosurgeons, are active 24 hours a day.
We ascertained the occurrence of stroke from January 1, 1994, to December 31, 1997. The diagnosis of stroke, which was always made by a neurologist, was defined according to World Health Organization criteria as rapidly developing clinical symptoms or signs of focal, and at times global, loss of cerebral function, with symptoms lasting more than 24 hours or leading to death, with no apparent cause other than that of vascular origin. In all patients, diagnostic and laboratory investigations included computed tomography (CT), blood tests, 12-lead electrocardiography, chest radiography, carotid duplex imaging, transcranial doppler imaging, cerebral angiography, echocardiography (transthoracic or transesophageal), and assessment of prothrombotic syndromes were done.
We observed 1610 consecutive cases of stroke (987 [61%] men). The mean (± SD) age of patients was 70 ± 12 years. There were 1,395 (87%) ischemic strokes and 315 (13%) hemorraghic strokes. Stroke onset was defined as the earliest time the patient or witness noted definite neurologic symptoms or signs; this information was obtained from patients, their relatives, or bystanders. Precise determination of the day of onset was possible in all cases.
We performed the main statistical analysis using a partial Fourier series, using a least-squares minimization fitting, and fitting a cosine function to the data by means of a regression method using a 168-hour period. Analyses were made using Chronolab software. This method selects the harmonic, or the combination of harmonics, that best explains the variance of the data. The percentage of overall variability of the data about the arithmetic mean that is attributable to the fitted rhythmic function estimates goodness of fit; and an F statistic is used to test the hypothesis of zero amplitude. Significance levels were set at P <0.05.
A circaseptan rhythm, with a significant peak on Monday (Figure, Table), was observed for all strokes (P = 0.012) and for ischemic strokes (P = 0.004). Stratified analyses of selected subgroups (hypertension and diabetes) showed a Monday peak only for nondiabetic patients (P = 0.04). For ischemic strokes, the Monday peak was found only for retired patients (P = 0.03).
Discussion
Monday seems to be a critical day for the occurrence of acute cardiovascular diseases. A Monday peak in the onset of cardiac arrest has been reported in a series of more than 6000 out-of-hospital cardiac arrests in Seattle and in a cohort of more than 24,000 sudden deaths in Berlin. As there is no evidence of weekly variations for life-threatening ventricular arrhythmias, it is possible that sudden deaths on Monday may be attributable mainly to coronary artery disease. Among Scottish men and women under 50 years of age, mortality from coronary artery disease was about 20% higher on Mondays than on other days of the week. Increased mortality from cardiovascular diseases has been observed in Lithuania throughout the weekend and on Monday, perhaps due to alcohol use. Two previous studies reported about a 20% increase on Mondays in the occurrence of myocardial infarction. Data from a Norwegian study suggested that biochemical factors associated with cardiovascular risk—such as measures of hematosis and carbohydrate and lipid metabolism—were less favorable on Mondays compared with other days of the week. Thus, similar to the association between increased thrombophilia in the mornings and the circadian pattern of other thrombotic disease such as myocardial infarction and limb ischemia, the Monday risk of ischemic stroke may reflect an increased thrombogenic condition. On the other hand, in other cardiovascular diseases that have a well-defined circadian pattern, emotional stress and greater blood pressure may be important factors
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