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Based on federal regulations, there are some circumstances that allow for a waiver of informed consent (informed consent not required) or an alteration of informed consent (some sections removed). 

This waiver applies in the special circumstances when the IRB determines that it is not necessary to obtain the participant's consent to conduct the research.

The IRB may approve research where investigators leave out or alter elements of informed consent, provided the research meets all applicable regulations.

HHS regulations allow the IRB to waive the requirement for obtaining informed consent or parental permission or to approve a consent procedure that leaves out or alters some or all of the elements of informed consent otherwise required under the regulations.


Situations When It Is Used

Waivers of informed consent may be used for the following types of studies:
  • Retrospective chart review studies. 
  • If participants may be involved and it would be either prohibitive or potentially dangerous to obtain a consent.  
  • Research designs require that participants be left unaware of the particular purpose of the research, because the participants’ responses might be biased if they know in advance what the investigators are seeking. Such research designs do not preclude offering potential participants some information about the research and giving them the opportunity to decide whether or not to participate.

Provisions for Participants Who Are Children

The IRB may waive the requirements for obtaining parental or guardian permission under the following provision:

The IRB determines that a research protocol is designed to study conditions, in children or a participant population, for which parental or guardian permission is not a reasonable requirement to protect the participants, for example, neglected or abused children, and the following two additional criteria are also met:

1. An appropriate mechanism is in place to protect the children, and

2. The waiver is not inconsistent with federal, state or local law (45 CFR 46.408(c)). The choice of an appropriate substitute mechanism, for example, appointing a child advocate or an assent monitor, for protecting children participating in research would depend on the nature and purpose of the activities described in the protocol, the risk and anticipated benefit to the research subjects, and the child’s age, maturity, status, and condition (45 CFR 46.408(c)). Note that an IRB may waive the requirement for obtaining parental or guardian permission under 45 CFR 46.408(c) even if the research involves more than minimal risk to the child subjects.

NKU also allows investigators to request to waive parental or guardian permission under the following provision:

Request to waive parental permission-Pursuant to 45 CFR 46.408 (a) and (b), request that guardian permission be waived as the participants are non-high school students enrolled in a university where they are expected to be treated and conduct themselves as adults and where their guardians have endorsed them to be enrolled and to conduct themselves as adults.


Scenarios for Possible Waiver or Alteration of Informed Consent (by HHS)

For adults and children, a waiver or alteration of the requirements for obtaining consent can occur under any of the following three provisions set forth by HHS:

1. Research in general: an IRB may waive or alter the requirement of informed consent under 45 CFR 46.116(d), provided that the IRB finds and documents that all of the following four conditions are met:

  • The research involves no more than minimal risk to the participants;
  • The waiver or alteration will not adversely affect the rights and welfare of the participants;
  • The research could not practicably be carried out without the waiver or alteration; and
  • Whenever appropriate, the participants will be provided with additional pertinent information after participation.

2. Public benefit or service programs: an IRB may approve a consent procedure that alters some or all of the elements of informed consent, or waive the requirement to obtain informed consent under HHS regulations at 45 CFR 46.116(c), provided that the IRB finds and documents that both of the following conditions are met:

  • The research could not practicably be carried out without the waiver or alteration; and
  • The research or demonstration project is to be conducted by or participant to the approval of state or local government officials and is designed to study, evaluate, or otherwise examine:
    • Public benefit or service programs;
    • Procedures for obtaining benefits or services under those programs;
    • Possible changes in or alternatives to those programs or procedures or
    • Possible changes in methods or levels of payment for benefits or services under those programs.

3. Research in emergency settings:  An IRB may also waive the requirement for obtaining informed consent if it finds, and documents, that the research meets the requirements of the HHS Secretarial waiver under 45 CFR 46.101(i) that permits a waiver of the general requirements for obtaining informed consent in a limited class of research in emergency settings.


HIPAA Requirements

If you plan to use or share protected health information (PHI) when conducting your research, you must conduct your study in accordance with the Privacy Rule of the Health Insurance Portability and Accountability Act (HIPAA).

This means that when applying for a waiver of documentation of consent, you will also have to request a waiver or alteration of HIPAA Authorization.  The IRB can grant the waiver of alteration if it deems the following criteria are met:

  1. An adequate plan to destroy identifiers at the earliest opportunity absent a health or research justification or legal requirement to retain them.
  2. An adequate plan to protect health information identifiers from improper use or disclosure.
  3. Adequate written assurances that the PHI will not be used or disclosed to a third party except as required by law, for authorized oversight of the research study, or for other research uses and disclosures permitted by the Privacy Rule.
  4. Research could not practicably be conducted without the waiver or alteration.
  5. Research could not practicably be conducted without access to and use of PHI.
Edited with Permission from Northwestern University IRB