Randomize

Returns a drug kit number based on the randomization type and the sequence and drug kit numbers stored in the randomization source database on the InForm host computer.

Syntax

Randomize(source,type)

Parameters

Parameters for Randomize

Parameter

Definition

Data type

source

Randomization source list name, or stratification code.

String

type

Randomization type:

Simple Central—The study uses one list of drug kits. Each new patient is assigned the next sequential drug kit number on the list.
Central Stratified—The study has multiple lists of drug kits. Each new subject is assigned to a drug kit list based on entered subject data. Then, the subject is assigned the next sequential drug kit number on that list.
Simple Site—Each site has a different drug kit list. Each new subject is assigned the next sequential drug kit number on the list for the site of the subject.
Stratified by Site—Each site has multiple lists of drug kits. Each new subject is first assigned to the set of lists for the site of the subject. Then, the subject is assigned to one of the site drug kit lists based on entered subject data. Finally, the subject is assigned the next sequential drug kit number on that list.

String

Returns

Drug kit number (String), in the format sequence/drug_kit

Notes

Using the Randomize function requires special configuration in the study design and on the computer hosting the InForm study:

The rule using the Randomization function must calculate the value of an item with the Special Fields custom property value of Randomization field (Randomization).
The following configuration is required on the computer hosting the InForm study:
- Define a randomization sequence for each different list of drug kits used in the study and install it in the study database using the MedML Installer tool.
- Configure the randomization data source manager.
- Configure the format of each randomization sequence.
- Set up a randomization source database.
- Create an ODBC connection for the randomization source database.

For more information, see the InForm documentation.