Randomization rules

A randomization rule is a specialized form of calculation that returns the number of a drug kit to assign to a randomized patient. In a randomization rule you test the criteria, if any, for patient stratification, set the properties of the Randomization object, and call a function that generates the drug kit number. This rule is attached to a special drug kit calculated control in a randomization item and section. The rule runs when a user clicks the Randomization button in the form window. For examples of randomization rules, see Randomization rule scripts.

Note: A randomization rule can be attached to only one control, that is, it can have only one context. For more information, see About rule contexts.