News|Articles|April 2, 2021

Pharmaceutical Technology

  • Pharmaceutical Technology-04-02-2021
  • Volume 45
  • Issue 4

Reducing Uncertainty of an Analytical Method through Efficient Use of Replication

A well-chosen replication strategy can effectively reduce the uncertainty for an analytical method, enabling appropriate decisions regarding pharmaceutical quality.

For a robustly developed analytical method, a well-chosen replication strategy can effectively reduce the uncertainty. A statistically sound approach involves replicating the factors associated with large amounts of variation followed by an appropriate analysis. The amount of reduction in uncertainty needed is informed by the precision requirements of the analytical target profile (ATP), ensuring that risks of making inappropriate quality decisions are minimized.

In this article, the authors describe two case studies: the use of a high-performance liquid chromatography separation method for a small-molecule API and a bioassay for a biopharmaceutical or vaccine.

Read this article as a PDF.

About the authors

Phil Borman, DSc, is senior fellow and director of product quality, GlaxoSmithKline; Timothy Schofield is owner and consultant, CMC Sciences, LLC; and David Lansky, PhD, is president, Precision Bioassay, Inc.

Article Details

Pharmaceutical Technology
Vol. 45, No. 4
April 2021
Pages: 46–56

Citation

When referring to this article, please cite it as P. Borman, T. Schofield, and D. Lansky, “Reducing Uncertainty of an Analytical Method through Efficient Use of Replication,” Pharmaceutical Technology 45 (4) 2021.


Related to this article

Glass vial, pipette and woman scientist in laboratory for medical study, research or experiment. Test tube, dropper and professional female person with chemical liquid for pharmaceutical innovation. | Image Credit: ©HockleyMedia24/peopleimages.com -stock.adobe.com
Equivalence test using two one-sided tests are widely used for demonstrating the comparability of treatment effects in different research fields. The method described in the manuscript aims to use simulations in Microsoft Excel to compute power for 2 one-sided tests for two groups with unequal variances.
Ask the Expert: Choosing Ingredient Suppliers
Jane Zhang of ETCH Sourcing explains why geopolitics, transparency, and partnership now weigh as heavily as cost and quality when companies choose suppliers, in this episode of Ask the Expert, moderated by Susan J. Schniepp of Nelson Labs.