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# Laboratory Values Cancer Trial Eligibility Criteria
- URL: https://www.fdaweb.com/laboratory-values-cancer-trial-eligibility-criteria/
- Published: 2024-04-25T12:00:00.000Z
- Updated: 2026-09-14T14:29:10.000Z
- Author: David McFarland
- Tags: Drugs, #legacy-id-D5156854

FDA has published a draft guidance, *Cancer Clinical Trial Eligibility Criteria: Laboratory Values*, with recommendations for selecting appropriate laboratory values as trial eligibility criteria to avoid unjustified exclusions of diverse trial participants. The [document](https://www.fda.gov/media/178013/download?ref=fdaweb.com) is one in a series of guidances that have recommendations about eligibility for clinical trials of investigational cancer drugs regulated by CDER and CBER.

This guidance describes general principles for selecting laboratory value-based eligibility criteria such as minimum blood counts, with a focus on later phase trials, FDA says.