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173,440 result(s) for "Survival analysis"
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Nusinersen versus Sham Control in Infantile-Onset Spinal Muscular Atrophy
In this phase 3 trial, among infants with spinal muscular atrophy, those who received nusinersen were more likely to achieve major motor milestones and less likely to need permanent assisted ventilation than those who underwent a sham procedure.
Pembrolizumab plus Chemotherapy for Squamous Non–Small-Cell Lung Cancer
The addition of pembrolizumab, an anti–PD-1 antibody, to a platinum–taxane chemotherapy combination significantly prolonged progression-free and overall survival among patients with untreated squamous cell lung cancer, regardless of the level of tumor PD-L1 expression.
Frailty Models in Survival Analysis
Accessible to nonspecialists, this book explains the basic ideas in frailty modeling and statistical techniques, with a focus on real data application and interpretation of the results. It extensively explores how univariate frailty models can represent unobserved heterogeneity. It also emphasizes correlated frailty models as extensions of univariate and shared frailty models. The author analyzes similarities and differences between frailty and copula models, discusses problems related to frailty models, and describes parametric and semiparametric models using both frequentist and Bayesian approaches. He also shows how to apply the models to real data using R, SAS, and Stata.
European LeukemiaNet 2020 recommendations for treating chronic myeloid leukemia
The therapeutic landscape of chronic myeloid leukemia (CML) has profoundly changed over the past 7 years. Most patients with chronic phase (CP) now have a normal life expectancy. Another goal is achieving a stable deep molecular response (DMR) and discontinuing medication for treatment-free remission (TFR). The European LeukemiaNet convened an expert panel to critically evaluate and update the evidence to achieve these goals since its previous recommendations. First-line treatment is a tyrosine kinase inhibitor (TKI; imatinib brand or generic, dasatinib, nilotinib, and bosutinib are available first-line). Generic imatinib is the cost-effective initial treatment in CP. Various contraindications and side-effects of all TKIs should be considered. Patient risk status at diagnosis should be assessed with the new EUTOS long-term survival (ELTS)-score. Monitoring of response should be done by quantitative polymerase chain reaction whenever possible. A change of treatment is recommended when intolerance cannot be ameliorated or when molecular milestones are not reached. Greater than 10% BCR-ABL1 at 3 months indicates treatment failure when confirmed. Allogeneic transplantation continues to be a therapeutic option particularly for advanced phase CML. TKI treatment should be withheld during pregnancy. Treatment discontinuation may be considered in patients with durable DMR with the goal of achieving TFR.
Randomized Trial of TAS-102 for Refractory Metastatic Colorectal Cancer
TAS-102, a combination of trifluridine and tipiracil in which tipiracil interferes with the deactivation of trifluridine, improved overall and progression-free survival in patients whose disease had progressed after treatment with fluorouracil-containing drug combinations. Fluoropyrimidines have long represented the cornerstone of treatment for colorectal cancer. 1 Such compounds act primarily as inhibitors of thymidylate synthase, the rate-limiting enzyme in the synthesis of pyrimidine nucleotides. 2 Fluorouracil has been combined with folinic acid (also known as leucovorin) to enhance the capacity of fluorouracil to bind to thymidylate synthase. 2 The addition of irinotecan (FOLFIRI) or oxaliplatin (FOLFOX) to fluorouracil and folinic acid, in combination with either a vascular endothelial growth factor inhibitor (bevacizumab) or an epidermal growth factor inhibitor (e.g., cetuximab or panitumumab) if the tumor contains a wild-type RAS gene, represents contemporary standard therapy and has extended . . .
Atezolizumab plus Bevacizumab in Unresectable Hepatocellular Carcinoma
In patients with unresectable hepatocellular carcinoma, the combination of atezolizumab and bevacizumab was associated with better progression-free and overall survival outcomes, response rate, and preservation of quality of life than sorafenib. Serious toxic effects were noted in 38% of patients, similar to that seen in previous studies of these agents.
Lenvatinib plus Pembrolizumab or Everolimus for Advanced Renal Cell Carcinoma
Lenvatinib plus either pembrolizumab or everolimus was compared with sunitinib as first-line therapy for advanced renal cell cancer. Progression-free survival was significantly longer with lenvatinib plus pembrolizumab than with sunitinib. Lenvatinib plus everolimus was also more effective than sunitinib, but the difference was smaller.
Estimating covariate-balanced survival curve in distributed data environment using data collaboration quasi-experiment
The sharing of patient-level data necessary for covariate-adjusted survival analysis between medical institutions is difficult due to privacy protection restrictions. We propose a privacy-preserving framework that estimates balanced Kaplan–Meier curves from distributed observational data without exchanging raw data. Each institution sends only the low-dimensional representation obtained through dimensionality reduction of the covariate matrix. Analysts reconstruct the aggregated dataset, perform propensity score matching, and estimate survival curves. Experiments using simulation datasets and five publicly available medical datasets showed that the proposed method consistently outperformed single-site analyses. This method can handle both horizontal and vertical data distribution scenarios and enables the collaborative acquisition of reliable survival curves with minimal communication and no disclosure of raw data.
Ruxolitinib for Glucocorticoid-Refractory Chronic Graft-versus-Host Disease
Standard treatment for GVHD is glucocorticoids, but for glucocorticoid-refractory GVHD, no intervention has emerged as standard second-line treatment. This trial with 329 patients compared ruxolitinib with control (chosen from among 10 possible therapies) in patients with glucocorticoid-refractory chronic GVHD. Response at week 24 was 50% with ruxolitinib as compared with 26% with control therapy.
MethSurv: a web tool to perform multivariable survival analysis using DNA methylation data
To develop a web tool for survival analysis based on CpG methylation patterns. We utilized methylome data from 'The Cancer Genome Atlas' and used the Cox proportional-hazards model to develop an interactive web interface for survival analysis. MethSurv enables survival analysis for a CpG located in or around the proximity of a query gene. For further mining, cluster analysis for a query gene to associate methylation patterns with clinical characteristics and browsing of top biomarkers for each cancer type are provided. MethSurv includes 7358 methylomes from 25 different human cancers. The MethSurv tool is a valuable platform for the researchers without programming skills to perform the initial assessment of methylation-based cancer biomarkers.