JSM 2011 Online Program

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Abstract Details

Activity Number: 580
Type: Contributed
Date/Time: Wednesday, August 3, 2011 : 2:00 PM to 3:50 PM
Sponsor: Biopharmaceutical Section
Abstract - #301973
Title: Sample Size Determination for Cut Point of Immunogenicity Assays
Author(s): Lanju Zhang and Jianchun Zhang*+ and Harry Yang
Companies: MedImmune, Inc. and MedImmune, Inc.
Address: One Medimmune Way, , ,
Keywords: Confidence interval ; Nonparametric ; Quantile
Abstract:

Immunogenicity assays are critical for evaluation of safety profiles of biological drugs. Key to the development and validation of an immunogenicity assay validation is the determination of a cut point. Precise estimation of this parameter requires adequate number of test samples. In practice, data for cut point calculation may have a normal, gamma, or any other skewed distributions. This talk centers on sample size determination when the cut point is the defined as a quantile of the underlying distribution.


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