Presents a firm mathematical basis for the use of response-adaptive randomization procedures in practice
The Theory of Response-Adaptive Randomization in Clinical Trials is the result of the authors' ten-year collaboration as well as their collaborations with other researchers in investigating the important questions regarding response-adaptive randomization in a rigorous mathematical framework. Response-adaptive allocation has a long history in biostatistics literature; however, largely due to the disastrous ECMO trial in the early 1980s, there is a general reluctance to use these procedures.
This timely book represents a mathematically rigorous subdiscipline of experimental design involving randomization and answers fundamental questions, including:
_ How does response-adaptive randomization affect power?
_ Can standard inferential tests be applied following response-adaptive randomization?
_ What is the effect of delayed response?
_ Which procedure is most appropriate and how can "most appropriate" be quantified?
_ How can heterogeneity of the patient population be incorporated?
_ Can response-adaptive randomization be performed with more than two treatments or with continuous responses?
The answers to these questions communicate a thorough understanding of the asymptotic properties of each procedure discussed, including asymptotic normality, consistency, and asymptotic variance of the induced allocation. Topical coverage includes:
_ The relationship between power and response-adaptive randomization
_ The general result for determining asymptotically best procedures
_ Procedures based on urn models
_ Procedures based on sequential estimation
_ Implications for the practice of clinical trials
Useful for graduate students in mathematics, statistics, and biostatistics as well as researchers and industrial and academic biostatisticians, this book offers a rigorous treatment of the subjectin order to find the optimal procedure to use in practice.
The Theory of Response-Adaptive Randomization in Clinical Trials is the result of the authors' ten-year collaboration as well as their collaborations with other researchers in investigating the important questions regarding response-adaptive randomization in a rigorous mathematical framework. Response-adaptive allocation has a long history in biostatistics literature; however, largely due to the disastrous ECMO trial in the early 1980s, there is a general reluctance to use these procedures.
This timely book represents a mathematically rigorous subdiscipline of experimental design involving randomization and answers fundamental questions, including:
_ How does response-adaptive randomization affect power?
_ Can standard inferential tests be applied following response-adaptive randomization?
_ What is the effect of delayed response?
_ Which procedure is most appropriate and how can "most appropriate" be quantified?
_ How can heterogeneity of the patient population be incorporated?
_ Can response-adaptive randomization be performed with more than two treatments or with continuous responses?
The answers to these questions communicate a thorough understanding of the asymptotic properties of each procedure discussed, including asymptotic normality, consistency, and asymptotic variance of the induced allocation. Topical coverage includes:
_ The relationship between power and response-adaptive randomization
_ The general result for determining asymptotically best procedures
_ Procedures based on urn models
_ Procedures based on sequential estimation
_ Implications for the practice of clinical trials
Useful for graduate students in mathematics, statistics, and biostatistics as well as researchers and industrial and academic biostatisticians, this book offers a rigorous treatment of the subjectin order to find the optimal procedure to use in practice.
"The book provides a comprehensive overview of the theory of repsonse-adaptive radomization and is recommended to readers with an interest in this specialist area." ( Statistics in Medicine , July 2008)
"I can recommend this book for the intended target audience which will include industry statisticians with a special interest in this area." ( Pharmaceutical Statisitcs, 2008)
"...this ground-breaking text is certainly a useful guide and reference for the academic and industry statistician alike." ( Journal of the American Statistical Association , December 2007)
"This book is useful for graduate students in mathematics, statistics and biostatistics as well as researchers and industrial and academic biostatisticians." ( Zentralblatt MATH , 2007)
"...a milestone in the literature on response-adaptive designs in clinical trials." ( Biometrics , September 2007)
"I can recommend this book for the intended target audience which will include industry statisticians with a special interest in this area." ( Pharmaceutical Statisitcs, 2008)
"...this ground-breaking text is certainly a useful guide and reference for the academic and industry statistician alike." ( Journal of the American Statistical Association , December 2007)
"This book is useful for graduate students in mathematics, statistics and biostatistics as well as researchers and industrial and academic biostatisticians." ( Zentralblatt MATH , 2007)
"...a milestone in the literature on response-adaptive designs in clinical trials." ( Biometrics , September 2007)