Consent Is a Medical Conversation

Part of Sub-Investigator (SUBI) Training: Consent You Take Yourself.

About 2 minutes. Free, in your language, no account needed.

This is why a clinician takes it

Informed consent for a trial involves explaining risk, uncertainty, alternatives and what happens if the participant says no.

Those are medical explanations. Many protocols therefore require a delegated physician to conduct the discussion, even when a coordinator handles the documentation.

Check you are delegated for it

Not every sub-investigator is delegated to take consent. It is a listed duty like any other.

Explain the alternatives honestly

Including the alternative of not taking part and receiving standard care.

A participant who does not understand that standard treatment remains available has not been adequately informed, however carefully the risks were described.

Be clear about what is research

Participants routinely believe a trial intervention is the best available treatment chosen for them personally. That belief is common, it is understandable, and it is not consent.

Say plainly which parts are research, that the benefit is not known, and that randomization means neither you nor they choose the arm.

Uncertainty is the thing to convey

"We do not know whether this works better" is the honest sentence and the hard one. It is also the reason the trial exists.

Give time and do not rush the signature

A participant deciding in the same conversation in which they first heard about the study has had little chance to consider.

Where the protocol allows, offer time and a copy to take away. A signature obtained under time pressure is fragile in every sense.

Check understanding with open questions

"What have you understood this study will involve?" tells you what landed. "Do you have any questions?" almost always gets a no.

Voluntariness needs saying

That they may decline, may stop at any time, and that their care will not be affected. Say it even when it feels obvious, especially when you are also their treating clinician.