Topics Map > OnCore > Data Field Definitions > Non-oncology
On Arm Date
| Field Name | Definition | Requirement Entry Instructions |
QA |
|---|---|---|---|
| On Arm Date | The date a subject is registered or randomized to the first (or only) arm or the first day of a subsequent arm. If entered, an Off Arm Date must also be entered. This field is required for studies that involve crossover or subsequent arms for subjects. |
Not Required | No |