Combination of Assay Results

The European Pharmacopoeia and the US Pharmacopeia describe different methods of combination calculations for independent assay results to obtain reportable values for the potency. PLA supports all different weighting methods for combination calculations. PLA also supports automatic data aggregation of independent assay data.

  • Unweighted Combination
  • Homogeneously Weighted Combination
  • Heterogeneously Weighted Combination according to European Pharmacopoeia, chapter 5.3
  • Heterogeneously Weighted Combination according to US Pharmacopeia <111>
  • Heterogeneously Weighted Combination according to US Pharmacopeia <1034>

Grouping of Calculations

PLA 3.0 also supports grouping of combination calculations. 

Example: consider two independent quantitative response assays with two test samples in each assay: Assay 1 contains test samples for Product A and Product B. Assay 2 contains test samples for the same products. In a grouped analysis you will receive two seperate combination calculations. One for Product A as well as one for Product B.

Test System

You can set up acceptance tests for the calculation results of the combination calculation.

Example