Sequential Medical Trials

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Sequential Experimentation in Clinical Trials

Author : Jay Bartroff
Publisher : Springer Science & Business Media
ISBN 13 : 1461461146
Total Pages : 250 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Sequential Experimentation in Clinical Trials by : Jay Bartroff

Download or read book Sequential Experimentation in Clinical Trials written by Jay Bartroff and published by Springer Science & Business Media. This book was released on 2012-12-12 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sequential Experimentation in Clinical Trials: Design and Analysis is developed from decades of work in research groups, statistical pedagogy, and workshop participation. Different parts of the book can be used for short courses on clinical trials, translational medical research, and sequential experimentation. The authors have successfully used the book to teach innovative clinical trial designs and statistical methods for Statistics Ph.D. students at Stanford University. There are additional online supplements for the book that include chapter-specific exercises and information. Sequential Experimentation in Clinical Trials: Design and Analysis covers the much broader subject of sequential experimentation that includes group sequential and adaptive designs of Phase II and III clinical trials, which have attracted much attention in the past three decades. In particular, the broad scope of design and analysis problems in sequential experimentation clearly requires a wide range of statistical methods and models from nonlinear regression analysis, experimental design, dynamic programming, survival analysis, resampling, and likelihood and Bayesian inference. The background material in these building blocks is summarized in Chapter 2 and Chapter 3 and certain sections in Chapter 6 and Chapter 7. Besides group sequential tests and adaptive designs, the book also introduces sequential change-point detection methods in Chapter 5 in connection with pharmacovigilance and public health surveillance. Together with dynamic programming and approximate dynamic programming in Chapter 3, the book therefore covers all basic topics for a graduate course in sequential analysis designs.

The Design and Analysis of Sequential Clinical Trials

Author : John Whitehead
Publisher : Horwood Publishing Limited
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Design and Analysis of Sequential Clinical Trials by : John Whitehead

Download or read book The Design and Analysis of Sequential Clinical Trials written by John Whitehead and published by Horwood Publishing Limited. This book was released on 1983 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book details all aspects of sequential clinical trials from preliminary planning, through the monitoring of the trial, to the final analysis of the results.

Small Clinical Trials

Author : Institute of Medicine
Publisher : National Academies Press
ISBN 13 : 9780309171144
Total Pages : 222 pages
Book Rating : 4.1/5 (711 download)

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Book Synopsis Small Clinical Trials by : Institute of Medicine

Download or read book Small Clinical Trials written by Institute of Medicine and published by National Academies Press. This book was released on 2001-01-01 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical trials are used to elucidate the most appropriate preventive, diagnostic, or treatment options for individuals with a given medical condition. Perhaps the most essential feature of a clinical trial is that it aims to use results based on a limited sample of research participants to see if the intervention is safe and effective or if it is comparable to a comparison treatment. Sample size is a crucial component of any clinical trial. A trial with a small number of research participants is more prone to variability and carries a considerable risk of failing to demonstrate the effectiveness of a given intervention when one really is present. This may occur in phase I (safety and pharmacologic profiles), II (pilot efficacy evaluation), and III (extensive assessment of safety and efficacy) trials. Although phase I and II studies may have smaller sample sizes, they usually have adequate statistical power, which is the committee's definition of a "large" trial. Sometimes a trial with eight participants may have adequate statistical power, statistical power being the probability of rejecting the null hypothesis when the hypothesis is false. Small Clinical Trials assesses the current methodologies and the appropriate situations for the conduct of clinical trials with small sample sizes. This report assesses the published literature on various strategies such as (1) meta-analysis to combine disparate information from several studies including Bayesian techniques as in the confidence profile method and (2) other alternatives such as assessing therapeutic results in a single treated population (e.g., astronauts) by sequentially measuring whether the intervention is falling above or below a preestablished probability outcome range and meeting predesigned specifications as opposed to incremental improvement.

Sequential Medical Trials

Author : P. Armitage
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Sequential Medical Trials by : P. Armitage

Download or read book Sequential Medical Trials written by P. Armitage and published by John Wiley & Sons. This book was released on 1975 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Group Sequential Methods with Applications to Clinical Trials

Author : Christopher Jennison
Publisher : CRC Press
ISBN 13 : 9781584888581
Total Pages : 416 pages
Book Rating : 4.8/5 (885 download)

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Book Synopsis Group Sequential Methods with Applications to Clinical Trials by : Christopher Jennison

Download or read book Group Sequential Methods with Applications to Clinical Trials written by Christopher Jennison and published by CRC Press. This book was released on 1999-09-15 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Group sequential methods answer the needs of clinical trial monitoring committees who must assess the data available at an interim analysis. These interim results may provide grounds for terminating the study-effectively reducing costs-or may benefit the general patient population by allowing early dissemination of its findings. Group sequential methods provide a means to balance the ethical and financial advantages of stopping a study early against the risk of an incorrect conclusion. Group Sequential Methods with Applications to Clinical Trials describes group sequential stopping rules designed to reduce average study length and control Type I and II error probabilities. The authors present one-sided and two-sided tests, introduce several families of group sequential tests, and explain how to choose the most appropriate test and interim analysis schedule. Their topics include placebo-controlled randomized trials, bio-equivalence testing, crossover and longitudinal studies, and linear and generalized linear models. Research in group sequential analysis has progressed rapidly over the past 20 years. Group Sequential Methods with Applications to Clinical Trials surveys and extends current methods for planning and conducting interim analyses. It provides straightforward descriptions of group sequential hypothesis tests in a form suited for direct application to a wide variety of clinical trials. Medical statisticians engaged in any investigations planned with interim analyses will find this book a useful and important tool.

Group Sequential and Confirmatory Adaptive Designs in Clinical Trials

Author : Gernot Wassmer
Publisher : Springer
ISBN 13 : 3319325620
Total Pages : 301 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Group Sequential and Confirmatory Adaptive Designs in Clinical Trials by : Gernot Wassmer

Download or read book Group Sequential and Confirmatory Adaptive Designs in Clinical Trials written by Gernot Wassmer and published by Springer. This book was released on 2016-07-04 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date review of the general principles of and techniques for confirmatory adaptive designs. Confirmatory adaptive designs are a generalization of group sequential designs. With these designs, interim analyses are performed in order to stop the trial prematurely under control of the Type I error rate. In adaptive designs, it is also permissible to perform a data-driven change of relevant aspects of the study design at interim stages. This includes, for example, a sample-size reassessment, a treatment-arm selection or a selection of a pre-specified sub-population. Essentially, this adaptive methodology was introduced in the 1990s. Since then, it has become popular and the object of intense discussion and still represents a rapidly growing field of statistical research. This book describes adaptive design methodology at an elementary level, while also considering designing and planning issues as well as methods for analyzing an adaptively planned trial. This includes estimation methods and methods for the determination of an overall p-value. Part I of the book provides the group sequential methods that are necessary for understanding and applying the adaptive design methodology supplied in Parts II and III of the book. The book contains many examples that illustrate use of the methods for practical application. The book is primarily written for applied statisticians from academia and industry who are interested in confirmatory adaptive designs. It is assumed that readers are familiar with the basic principles of descriptive statistics, parameter estimation and statistical testing. This book will also be suitable for an advanced statistical course for applied statisticians or clinicians with a sound statistical background.

A Practical Guide to Managing Clinical Trials

Author : JoAnn Pfeiffer
Publisher : CRC Press
ISBN 13 : 1315299771
Total Pages : 292 pages
Book Rating : 4.3/5 (152 download)

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Book Synopsis A Practical Guide to Managing Clinical Trials by : JoAnn Pfeiffer

Download or read book A Practical Guide to Managing Clinical Trials written by JoAnn Pfeiffer and published by CRC Press. This book was released on 2017-05-18 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Practical Guide to Managing Clinical Trials is a basic, comprehensive guide to conducting clinical trials. Designed for individuals working in research site operations, this user-friendly reference guides the reader through each step of the clinical trial process from site selection, to site set-up, subject recruitment, study visits, and to study close-out. Topics include staff roles/responsibilities/training, budget and contract review and management, subject study visits, data and document management, event reporting, research ethics, audits and inspections, consent processes, IRB, FDA regulations, and good clinical practices. Each chapter concludes with a review of key points and knowledge application. Unique to this book is "A View from India," a chapter-by-chapter comparison of clinical trial practices in India versus the U.S. Throughout the book and in Chapter 10, readers will glimpse some of the challenges and opportunities in the emerging and growing market of Indian clinical trials.

Fundamentals of Clinical Trials

Author : Lawrence M. Friedman
Publisher : Springer Science & Business Media
ISBN 13 : 9780387985862
Total Pages : 384 pages
Book Rating : 4.9/5 (858 download)

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Book Synopsis Fundamentals of Clinical Trials by : Lawrence M. Friedman

Download or read book Fundamentals of Clinical Trials written by Lawrence M. Friedman and published by Springer Science & Business Media. This book was released on 1998 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic reference, now updated with the newest applications and results, addresses the fundamentals of such trials based on sound scientific methodology, statistical principles, and years of accumulated experience by the three authors.

The Design and Analysis of Sequential Clinical Trials

Author : John Whitehead
Publisher : John Wiley & Sons
ISBN 13 : 9780471975502
Total Pages : 342 pages
Book Rating : 4.9/5 (755 download)

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Book Synopsis The Design and Analysis of Sequential Clinical Trials by : John Whitehead

Download or read book The Design and Analysis of Sequential Clinical Trials written by John Whitehead and published by John Wiley & Sons. This book was released on 1997-08-04 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book details all aspects of sequential clinical trials from preliminary planning, through the monitoring of the trial, to the final analysis of the results. Emphasis is placed on the triangular test and other procedures based on straight line stopping boundaries. These methods allow for frequent or occasional interim analyses and permit the analysis of a wide variety of patient responses. Alternative procedures are also covered in detail, and these include -spending function methods, repeated confidence intervals and Bayesian approaches to sequential clinical trials.

Statistical Design, Monitoring, and Analysis of Clinical Trials

Author : Weichung Joe Shih
Publisher : CRC Press
ISBN 13 : 1000462811
Total Pages : 320 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Statistical Design, Monitoring, and Analysis of Clinical Trials by : Weichung Joe Shih

Download or read book Statistical Design, Monitoring, and Analysis of Clinical Trials written by Weichung Joe Shih and published by CRC Press. This book was released on 2021-10-26 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical Design, Monitoring, and Analysis of Clinical Trials, Second Edition concentrates on the biostatistics component of clinical trials. This new edition is updated throughout and includes five new chapters. Developed from the authors’ courses taught to public health and medical students, residents, and fellows during the past 20 years, the text shows how biostatistics in clinical trials is an integration of many fundamental scientific principles and statistical methods. The book begins with ethical and safety principles, core trial design concepts, the principles and methods of sample size and power calculation, and analysis of covariance and stratified analysis. It then focuses on sequential designs and methods for two-stage Phase II cancer trials to Phase III group sequential trials, covering monitoring safety, futility, and efficacy. The authors also discuss the development of sample size reestimation and adaptive group sequential procedures, phase 2/3 seamless design and trials with predictive biomarkers, exploit multiple testing procedures, and explain the concept of estimand, intercurrent events, and different missing data processes, and describe how to analyze incomplete data by proper multiple imputations. This text reflects the academic research, commercial development, and public health aspects of clinical trials. It gives students and practitioners a multidisciplinary understanding of the concepts and techniques involved in designing, monitoring, and analyzing various types of trials. The book’s balanced set of homework assignments and in-class exercises are appropriate for students and researchers in (bio)statistics, epidemiology, medicine, pharmacy, and public health.

Randomised Response-Adaptive Designs in Clinical Trials

Author : Anthony C Atkinson
Publisher : CRC Press
ISBN 13 : 1584886935
Total Pages : 341 pages
Book Rating : 4.5/5 (848 download)

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Book Synopsis Randomised Response-Adaptive Designs in Clinical Trials by : Anthony C Atkinson

Download or read book Randomised Response-Adaptive Designs in Clinical Trials written by Anthony C Atkinson and published by CRC Press. This book was released on 2013-12-26 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Randomised Response-Adaptive Designs in Clinical Trials presents methods for the randomised allocation of treatments to patients in sequential clinical trials. Emphasizing the practical application of clinical trial designs, the book is designed for medical and applied statisticians, clinicians, and statisticians in training. After introducing clinical trials in drug development, the authors assess a simple adaptive design for binary responses without covariates. They discuss randomisation and covariate balance in normally distributed responses and cover many important response-adaptive designs for binary responses. The book then develops response-adaptive designs for continuous and longitudinal responses, optimum designs with covariates, and response-adaptive designs with covariates. It also covers response-adaptive designs that are derived by optimising an objective function subject to constraints on the variance of estimated parametric functions. The concluding chapter explores future directions in the development of adaptive designs.

Randomization in Clinical Trials

Author : William F. Rosenberger
Publisher : John Wiley & Sons
ISBN 13 : 1118742249
Total Pages : 284 pages
Book Rating : 4.1/5 (187 download)

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Book Synopsis Randomization in Clinical Trials by : William F. Rosenberger

Download or read book Randomization in Clinical Trials written by William F. Rosenberger and published by John Wiley & Sons. This book was released on 2015-11-23 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praise for the First Edition “All medical statisticians involved in clinical trials should read this book…” - Controlled Clinical Trials Featuring a unique combination of the applied aspects of randomization in clinical trials with a nonparametric approach to inference, Randomization in Clinical Trials: Theory and Practice, Second Edition is the go-to guide for biostatisticians and pharmaceutical industry statisticians. Randomization in Clinical Trials: Theory and Practice, Second Edition features: Discussions on current philosophies, controversies, and new developments in the increasingly important role of randomization techniques in clinical trials A new chapter on covariate-adaptive randomization, including minimization techniques and inference New developments in restricted randomization and an increased focus on computation of randomization tests as opposed to the asymptotic theory of randomization tests Plenty of problem sets, theoretical exercises, and short computer simulations using SAS® to facilitate classroom teaching, simplify the mathematics, and ease readers’ understanding Randomization in Clinical Trials: Theory and Practice, Second Edition is an excellent reference for researchers as well as applied statisticians and biostatisticians. The Second Edition is also an ideal textbook for upper-undergraduate and graduate-level courses in biostatistics and applied statistics. William F. Rosenberger, PhD, is University Professor and Chairman of the Department of Statistics at George Mason University. He is a Fellow of the American Statistical Association and the Institute of Mathematical Statistics, and author of over 80 refereed journal articles, as well as The Theory of Response-Adaptive Randomization in Clinical Trials, also published by Wiley. John M. Lachin, ScD, is Research Professor in the Department of Epidemiology and Biostatistics as well as in the Department of Statistics at The George Washington University. A Fellow of the American Statistical Association and the Society for Clinical Trials, Dr. Lachin is actively involved in coordinating center activities for clinical trials of diabetes. He is the author of Biostatistical Methods: The Assessment of Relative Risks, Second Edition, also published by Wiley.

Meta-Analysis of Controlled Clinical Trials

Author : Anne Whitehead
Publisher : John Wiley & Sons
ISBN 13 : 0470854197
Total Pages : 352 pages
Book Rating : 4.4/5 (78 download)

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Book Synopsis Meta-Analysis of Controlled Clinical Trials by : Anne Whitehead

Download or read book Meta-Analysis of Controlled Clinical Trials written by Anne Whitehead and published by John Wiley & Sons. This book was released on 2003-01-17 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last twenty years there has been a dramatic upsurge in the application of meta-analysis to medical research. This has mainly been due to greater emphasis on evidence-based medicine and the need for reliable summaries of the vast and expanding volume of clinical research. At the same time there have been great strides in the development and refinement of the associated statistical methodology. This book describes the planning, conduct and reporting of a meta-analysis as applied to a series of randomized controlled clinical trials. * The various approaches are presented within a general unified framework. * Meta-analysis techniques are described in detail, from their theoretical development through to practical implementation. * Each topic discussed is supported by detailed worked examples. * A comparison of fixed and random effects approaches is included, as well as a discussion of Bayesian methods and cumulative meta-analysis. * Fully documented programs using standard statistical procedures in SAS are available on the Web. Ideally suited for practising statisticians and statistically-minded medical professionals, the book will also be of use to graduate students of medical statistics. The book is a self-contained and comprehensive account of the subject and an essential purchase for anyone involved in clinical trials.

Sequential medical trials ( stopping rules/ asymptotic optimality).

Author : STANFORD UNIV CA DEPT OF STATISTICS.
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (227 download)

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Book Synopsis Sequential medical trials ( stopping rules/ asymptotic optimality). by : STANFORD UNIV CA DEPT OF STATISTICS.

Download or read book Sequential medical trials ( stopping rules/ asymptotic optimality). written by STANFORD UNIV CA DEPT OF STATISTICS. and published by . This book was released on 1980 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model for sequential clinical trials is discussed. Three proposed stopping rules are studied by Monte Carlo for small patient horizons and mathematically for large patient horizons. They are shown to be about equally effective and asymptotically optimal from both Bayesian and frequentist points of view. Their advantage over any fixed sample size rule is emphasized. (Author).

Modern Approaches to Clinical Trials Using SAS

Author : Sandeep Menon
Publisher : SAS Institute
ISBN 13 : 1629600822
Total Pages : 482 pages
Book Rating : 4.6/5 (296 download)

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Book Synopsis Modern Approaches to Clinical Trials Using SAS by : Sandeep Menon

Download or read book Modern Approaches to Clinical Trials Using SAS written by Sandeep Menon and published by SAS Institute. This book was released on 2015-12-09 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get the tools you need to use SAS® in clinical trial design! Unique and multifaceted, Modern Approaches to Clinical Trials Using SAS: Classical, Adaptive, and Bayesian Methods, edited by Sandeep M. Menon and Richard C. Zink, thoroughly covers several domains of modern clinical trial design: classical, group sequential, adaptive, and Bayesian methods that are applicable to and widely used in various phases of pharmaceutical development. Written for biostatisticians, pharmacometricians, clinical developers, and statistical programmers involved in the design, analysis, and interpretation of clinical trials, as well as students in graduate and postgraduate programs in statistics or biostatistics, the book touches on a wide variety of topics, including dose-response and dose-escalation designs; sequential methods to stop trials early for overwhelming efficacy, safety, or futility; Bayesian designs that incorporate historical data; adaptive sample size re-estimation; adaptive randomization to allocate subjects to more effective treatments; and population enrichment designs. Methods are illustrated using clinical trials from diverse therapeutic areas, including dermatology, endocrinology, infectious disease, neurology, oncology, and rheumatology. Individual chapters are authored by renowned contributors, experts, and key opinion leaders from the pharmaceutical/medical device industry or academia. Numerous real-world examples and sample SAS code enable users to readily apply novel clinical trial design and analysis methodologies in practice.

Group-Sequential Clinical Trials with Multiple Co-Objectives

Author : Toshimitsu Hamasaki
Publisher : Springer
ISBN 13 : 4431559000
Total Pages : 113 pages
Book Rating : 4.4/5 (315 download)

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Book Synopsis Group-Sequential Clinical Trials with Multiple Co-Objectives by : Toshimitsu Hamasaki

Download or read book Group-Sequential Clinical Trials with Multiple Co-Objectives written by Toshimitsu Hamasaki and published by Springer. This book was released on 2016-06-01 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on group sequential methods for clinical trials with co-primary endpoints based on the decision-making frameworks for: (1) rejecting the null hypothesis (stopping for efficacy), (2) rejecting the alternative hypothesis (stopping for futility), and (3) rejecting the null or alternative hypothesis (stopping for either futility or efficacy), where the trial is designed to evaluate whether the intervention is superior to the control on all endpoints. For assessing futility, there are two fundamental approaches, i.e., the decision to stop for futility based on the conditional probability of rejecting the null hypothesis, and the other based on stopping boundaries using group sequential methods. In this book, the latter approach is discussed. The book also briefly deals with the group sequential methods for clinical trials designed to evaluate whether the intervention is superior to the control on at least one endpoint. In addition, the book describes sample size recalculation and the resulting effect on power and type I error rate. The book also describes group sequential strategies for three-arm clinical trials to demonstrate the non-inferiority of experimental intervention to actively control and to assess the assay sensitivity to placebo control.

Recent Advances in Clinical Trial Design and Analysis

Author : Peter F. Thall
Publisher : Springer Science & Business Media
ISBN 13 : 1461520096
Total Pages : 263 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Recent Advances in Clinical Trial Design and Analysis by : Peter F. Thall

Download or read book Recent Advances in Clinical Trial Design and Analysis written by Peter F. Thall and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical trials have two purposes -- to treat the patients in the trial, and to obtain information which increases our understanding of the disease and especially how patients respond to treatment. Statistical design provides a means to achieve both these aims, while statistical data analysis provides methods for extracting useful information from the trial data. Recent advances in statistical computing have enabled statisticians to implement very rapidly a broad array of methods which previously were either impractical or impossible. Biostatisticians are now able to provide much greater support to medical researchers working in both clinical and laboratory settings. As our collective toolkit of techniques for analyzing data has grown, it has become increasingly difficult for biostatisticians to keep up with all the developments in our own field. Recent Advances in Clinical Trial Design and Analysis brings together biostatisticians doing cutting-edge research and explains some of the more recent developments in biostatistics to clinicians and scientists who work in clinical trials.