Enrichment Guidance To Prod Sponsors Toward Prospective Patient Stratification

The sensitivity and specificity of the target identification could determine size of the off-target population, CDER senior statistical advisor Robert O’Neill says at DIA/FDA meeting on revitalizing R&D.

When enriching clinical trials based on biomarker status, the sensitivity and specificity of the diagnostic used to classify the patients could be the deciding factors in sizing the off-target population, Robert O’Neill, senior statistical advisor at CDER’s Office of Translational Sciences, indicated during an Oct. 23 preview of FDA’s enrichment guidance.

That approach would determine the extent of participation of patients who do not test positive for the biomarker (or whatever...

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