Informed consent is one of the primary ethical requirements underpinning research with human subjects; it reflects the basic principle of respect for persons. It is too often forgotten that informed consent is an ongoing process, not a piece of paper or a discrete moment in time. Informed consent assures that prospective human subjects will understand the nature of the research and can knowledgeably and voluntarily decide whether or not to participate. The prospective subject should be presented with the information, then given an opportunity to ask questions and have them answered, prior to signing the consent document.
Basic elements of informed consent:
Additional elements of informed consent. When appropriate, one or more of the following elements of information shall also be provided to each subject:
Yes. Sample consent forms may be found within the Informed Consent guidance material that is available online on the Institutional Review Board website. Sample forms are presented to provide guidance to researchers from various disciplines. Additional forms may be added periodically.
Assent is defined as, "A child's affirmative agreement to participate in research. Mere failure to object should not be construed as assent [45 CFR 46.402(b)]". While children may be legally incapable of giving informed consent, they nevertheless may possess the ability to assent to or dissent from participation. Out of respect for children as developing persons, children should be asked whether or not they wish to participate in the research, particularly if the research: (1) does not involve interventions likely to be of benefit to the subjects; and (2) the children can comprehend and appreciate what it means to be a volunteer for the benefit of others. The IRB must determine for each protocol - depending on such factors as the nature of the research and the age, status, and condition of the proposed subjects - whether all or some of the children are capable of assenting to participation. Where appropriate, IRB’s may choose to review on a case-by-case basis whether assent should be sought from given individual subjects.
The IRB may waive the requirement for written documentation of informed consent, if it finds and documents either of the following:
In situations in which signed consent will not be obtained, it is often advisable to present subjects with an information sheet or letter that contains the elements of informed consent, for their future reference.
Consent is required from any human subject in research unless informed consent has been specifically waived by the IRB. The IRB may waive consent under two sets of circumstances:
Otherwise, written informed consent must be obtained. For additional information, review the applicable federal regulation online at 45 CFR 46.116.