Description

Book Synopsis
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?

    Trade Review
    "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)



    Table of Contents
    Dedication.

    Preface.

    1. Introduction.

    1.1 Randomization in clinical trials.

    1.2 Response-adaptive randomization in a historical context.

    1.3 Outline of the book.

    1.4 References.

    2. Fundamental Questions of response-Adaptive Randomization.

    2.1 Optimal allocation.

    2.2 The realtionship between power and response-adaptive randomization.

    2.3 The relationship for K > 2 treatments.

    2.4 Asymptotically best procedures.

    2.5 References.

    3. Likelihood-based Inference.

    3.1 Data structure and Likelihood.

    3.2 Asymptotic properties of maximum likelihood estimators.

    3.4 Conclusion.

    3.5 References.

    4. Procedures Based on Urn Models.

    4.1 Generalized Friedman's urn.

    4.2 The class of ternary urn models.

    4.3 References.

    5. Procedures Based on Sequential Estimation.

    5.1 Examples.

    5.2 Properties of procedures based on sequential estimation for K = 2.

    5.3 Notation and conditions for the general framework.

    5.4 Asymptotic results and some examples.

    5.5 Proving the main theorems.

    5.6 References.

    6. Sample Size Calculation.

    6.1 Power of a randomization procedure.

    6.2 Three types of sample size.

    6.3 Examples.

    6.4 References.

    7. Additional Considerations.

    7.1 The effect of delayed response.

    7.2 Continuous responses.

    7.3 Multiple (K > 2) treatments.

    7.4 Accommodating heterogeneity.

    7.5 References.

    8. Implications for the Practice of Clinical Trials.

    8.1 Standards.

    8.2 Binary response.

    8.3 Continuous responses.

    8.4 The effect of delayed response.

    8.5 Conclusions.

    8.6 References.

    9. Incorporating Covariates.

    9.1 Introduction and examples.

    9.2 General framework and asymptotic results.

    9.3 Generalized linear models.

    9.4 Two treatments with binary responses.

    9.5 Conclusions.

    9.6 References.

    10. Conclusions and Open Problems.

    10.1 Conclusions.

    10.2 Open problems.

    10.3 References.

    Appendix A: Supporting Technical Material.

    A.1 Some matrix theory.

    A.2 Jordan decomposition.

    A.3 Matrix recursions.

    A.4 Martingales.

    A.5 Cramér-Wold device.

    A.6 Multivariate martingales.

    A.7 Multivariate Taylor's expansion.

    A.8 References.

    Appendix B: Proofs.

    B.1 Proofs theorems in Chapter 4.

    B.2 Proof of theorems in Chapter 5.

    B.3 Proof of theorems in Chapter 7.

    B.4 References.

    Author Index.

    Subject Index.

The Theory of ResponseAdaptive Randomization in Clinical Trials

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    A Hardback by Feifang Hu, William F. Rosenberger

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      View other formats and editions of The Theory of ResponseAdaptive Randomization in Clinical Trials by Feifang Hu

      Publisher: Wiley
      Publication Date: 05/09/2006
      ISBN13: 9780471653967, 978-0471653967
      ISBN10:

      Description

      Book Synopsis
      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?

        Trade Review
        "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)



        Table of Contents
        Dedication.

        Preface.

        1. Introduction.

        1.1 Randomization in clinical trials.

        1.2 Response-adaptive randomization in a historical context.

        1.3 Outline of the book.

        1.4 References.

        2. Fundamental Questions of response-Adaptive Randomization.

        2.1 Optimal allocation.

        2.2 The realtionship between power and response-adaptive randomization.

        2.3 The relationship for K > 2 treatments.

        2.4 Asymptotically best procedures.

        2.5 References.

        3. Likelihood-based Inference.

        3.1 Data structure and Likelihood.

        3.2 Asymptotic properties of maximum likelihood estimators.

        3.4 Conclusion.

        3.5 References.

        4. Procedures Based on Urn Models.

        4.1 Generalized Friedman's urn.

        4.2 The class of ternary urn models.

        4.3 References.

        5. Procedures Based on Sequential Estimation.

        5.1 Examples.

        5.2 Properties of procedures based on sequential estimation for K = 2.

        5.3 Notation and conditions for the general framework.

        5.4 Asymptotic results and some examples.

        5.5 Proving the main theorems.

        5.6 References.

        6. Sample Size Calculation.

        6.1 Power of a randomization procedure.

        6.2 Three types of sample size.

        6.3 Examples.

        6.4 References.

        7. Additional Considerations.

        7.1 The effect of delayed response.

        7.2 Continuous responses.

        7.3 Multiple (K > 2) treatments.

        7.4 Accommodating heterogeneity.

        7.5 References.

        8. Implications for the Practice of Clinical Trials.

        8.1 Standards.

        8.2 Binary response.

        8.3 Continuous responses.

        8.4 The effect of delayed response.

        8.5 Conclusions.

        8.6 References.

        9. Incorporating Covariates.

        9.1 Introduction and examples.

        9.2 General framework and asymptotic results.

        9.3 Generalized linear models.

        9.4 Two treatments with binary responses.

        9.5 Conclusions.

        9.6 References.

        10. Conclusions and Open Problems.

        10.1 Conclusions.

        10.2 Open problems.

        10.3 References.

        Appendix A: Supporting Technical Material.

        A.1 Some matrix theory.

        A.2 Jordan decomposition.

        A.3 Matrix recursions.

        A.4 Martingales.

        A.5 Cramér-Wold device.

        A.6 Multivariate martingales.

        A.7 Multivariate Taylor's expansion.

        A.8 References.

        Appendix B: Proofs.

        B.1 Proofs theorems in Chapter 4.

        B.2 Proof of theorems in Chapter 5.

        B.3 Proof of theorems in Chapter 7.

        B.4 References.

        Author Index.

        Subject Index.

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