- Patient consent must be obtained according to local institutional policy. It will be the responsibility of the local participating investigators to obtain the necessary local clearance, and to indicate in writing to the IAEA Study Coordinator that such clearance has been obtained, before the trial can commence in that centre. A copy of the initial full board ERB approval and approved consent form must be sent to the Project Officer at IAEA. The patient must sign the consent form prior to randomization or registration.