Central Randomization

IDDI statisticians provide both fixed and dynamic randomization methods, using IDDI's web-based central randomization and drug supply management platform ID-net™ and ID-supply™

Several methods can be used to allocate treatments at random, and the choice of the most appropriate method must be carefully studied before the trial is launched.

Methods such as randomly permuted blocks within strata and stochastic minimization are used to balance for prognostic factors. IDDI has extensive expertise to help you to choose the most appropriate randomization method. IDDI has developed ID-net™ an Interactive Web Response System (IWRS) dedicated to centralized randomization and treatment allocation. A Voice Interactive Response (IVRS) solution is optional.

To learn more about centralized randomization download 'Centralized Treatment Allocation in Comparative Clinical Trials' by Dr. Marc Buyse.

Client Access


Drug Supply

ID-supply™ is a workflow management system to perform drug distribution to depots and sites, and treatment kit allocation at the site.

When the study drug availability is low and the expected inventory at the site is minimum, an option in ID-supply™ can be turned on to combine dynamic treatment allocation allowing partial treatment stock at the site while maintaining the expected balance for the study by using an innovative method to re-supply the sites.

ID-supply operates seamlessly in conjunction with the ID-net TM centralized randomization module. The web interface modules provide a unified access to a central database.

allocation