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Journal of Biopharmaceutical Statistics Volume 22, 2012 - Issue 4: Adaptive Designs for Clinical Trials: Considerations about and Beyond the FDA Adaptive Designs Guidance
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Original Articles

On Adaptive Error Spending Approach for Group Sequential Trials with Random Information Levels

Qing Liu Janssen Research and Development, LLC, Raritan, New Jersey, USACorrespondence[email protected]
,
Pilar Lim Janssen Research and Development, LLC, Raritan, New Jersey, USA
,
Issac Nuamah Janssen Research and Development, LLC, Raritan, New Jersey, USA
&
Yulan Li Novartis Pharmaceuticals, East Hanover, New Jersey, USA
Pages 687-699 | Received 01 Jun 2010, Accepted 15 Feb 2012, Published online: 31 May 2012

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