- Eligibility Criterion. Biomarker measured to help determine if patients can participate in the research trial.
- Treatment Assignment. Biomarker measured to help determine what treatment will be administered (or how much is given).
- Stratification Factor. Biomarker measured to help classify patients into strata as part of the randomization process or for purposes of data analysis.
- Research. Biomarker measured to support a hypothesis or trial objective which cannot be considered response assessment.
- Response Assessment. Biomarker measured to help determine how well the treatment is working or to characterize the impact of treatment.
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