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Updated: Jan 5, 2026

An R-Based Landscape Validation of a Competing Risk Model
Published on: September 16, 2022
Risk-Based Approach to Lot Release
Linas Mockus1, Gintaras Reklaitis1, Kenneth Morris2
1Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907-2100.
Abstract:
In this work, a novel risk-based methodology for lot release is proposed. Its objective is to assess the risk that a lot declared to have passed truly meets product specifications. The methodology consists of 3 parts: adaptive sample size determination, estimation of the probability that the product was within specifications, and the lot-release decision. The methodology provides a probabilistic statement about the true quality of the batch. Having a probability estimate is the essential condition of risk-based decision-making. We demonstrate the proposed methodology on experimental data generated from 17 immediate-release solid oral drug products from a number of different manufacturers with 5 to 10 lots per manufacturer.
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