Feasibility of singlicate-based analysis in bridging ADA assay on Meso-Scale Discovery platform: comparison with duplicate analysis

Aim: To investigate the feasibility of singlicate analysis in anti-drug antibody (ADA) assay by comparing performance characteristics for assays qualified in duplicate and singlicate formats. Materials & methods: We employed modeling to assess and quantify the impact of singlicate to cut point factor (CPF) in scenarios with the duplicate precision from 1-20% and the proportion of well-to-well variance to overall assay variance from 0.01-0.90. The impact to CPF by singlicate is marginal if the well-to-well coefficient of variation is Results & conclusion: The assay parameters including sensitivity, precision, selectivity, drug and target tolerance were comparable between singlicate and duplicate based assays. Our results suggested the minimal impact of singlicate analysis on ADA assay with good duplicate precision. The study provided additional supportive evidence that the singlicate-based analysis is feasible in ADA ligand binding assays.

Automated summary

The study investigated the feasibility of singlicate analysis in ADA assay by comparing performance characteristics for duplicate and singlicate formats. The results showed that the assay parameters were comparable between singlicate and duplicate based assays, suggesting minimal impact of singlicate analysis on ADA assay with good duplicate precision. The study provided additional supportive evidence for the feasibility of singlicate-based analysis in ADA ligand binding assays.