ABSTRACT

In the United States, a rare disease is defined by the Orphan Drug Act as a disorder or condition that affects fewer than 200,000 persons. For the approval of "orphan" drug products for rare diseases, the traditional approach of power analysis for sample size calculation is not feasible because there are only limited number of subjects available for clinical trials. In this case, innovative approaches are needed for providing substantial evidence meeting the same standards for statistical assurance as drugs used to treat common conditions. Innovative Methods for Rare Disease Drug Development focuses on biostatistical applications in terms of design and analysis in pharmaceutical research and development from both regulatory and scientific (statistical) perspectives.

Key Features:

  • Reviews critical issues (e.g., endpoint/margin selection, sample size requirements, and complex innovative design).
  • Provides better understanding of statistical concepts and methods which may be used in regulatory review and approval.
  • Clarifies controversial statistical issues in regulatory review and approval accurately and reliably.
  • Makes recommendations to evaluate rare diseases regulatory submissions.
  • Proposes innovative study designs and statistical methods for rare diseases drug development, including n-of-1 trial design, adaptive trial design, and master protocols like platform trials.
  • Provides insight regarding current regulatory guidance on rare diseases drug development like gene therapy.

chapter 1|20 pages

Introduction

chapter 2|21 pages

Basic Considerations

chapter 3|24 pages

Hypotheses Testing for Clinical Evaluation

chapter 4|20 pages

Endpoint Selection in Clinical Trials

chapter 5|20 pages

Strategy for Margin Selection

chapter 6|17 pages

Probability of Inconclusiveness

chapter 8|26 pages

Real-World Data and Real-World Evidence

chapter 10|20 pages

The n-of-1 Trial Design and Its Application

chapter 11|22 pages

Two-Stage Adaptive Seamless Trial Design

chapter 12|19 pages

Master Protocol – Platform Trial Design

chapter 13|18 pages

Gene Therapy for Rare Diseases

chapter 14|18 pages

Clinical Development of NASH Program