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Seamless phase II/III/IIIb clinical trial designs with different endpoints for different phases

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  • Hui Quan
  • Xiaodong Luo
  • Tianyue Zhou
  • Peng-Liang Zhao

Abstract

In a seamless phase II/III/IIIb trial, K (K ≥ 2) doses versus placebo control are evaluated at phase II. Based on phase II results, one dose will be selected for phases III and IIIb. Pre-specified additional numbers of patients will be enrolled into the selected dose and placebo control during phases III and IIIb. Results of the phase III endpoint may be submitted for an early New Drug Application. Final analyses will be conducted for ultimate claims of treatment effects for the selected dose on the phase III and IIIb endpoints. Multiplicity adjustment is performed for the overall type I error rate control.

Suggested Citation

  • Hui Quan & Xiaodong Luo & Tianyue Zhou & Peng-Liang Zhao, 2020. "Seamless phase II/III/IIIb clinical trial designs with different endpoints for different phases," Communications in Statistics - Theory and Methods, Taylor & Francis Journals, vol. 49(22), pages 5436-5454, November.
    • Handle: RePEc:taf:lstaxx:v:49:y:2020:i:22:p:5436-5454
    DOI: 10.1080/03610926.2019.1618871
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