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Commentary

Considerations and costs of disclosing study findings to research participants

Conrad V. Fernandez, Chris Skedgel and Charles Weijer
CMAJ April 27, 2004 170 (9) 1417-1419; DOI: https://doi.org/10.1503/cmaj.1031668
Conrad V. Fernandez
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Chris Skedgel
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Charles Weijer
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The disclosure of study findings to participants in research reflects the moral obligation of researchers, founded in the ethical principle of respect for human dignity, to avoid treating human participants as a means to an end. Human dignity is respected through proper procedures of obtaining informed consent, and an offer to provide research results to participants extends this respect. Unfortunately, researchers adhere inconsistently to this responsibility,1,2 and little guidance is provided in regulatory policies3,4 even though a desire for such information has been expressed by research participants.5Recently there has been a compelling call to offer research results to participants in clinical trials;6we have extended this argument to include all participants in human research.7

Funding agencies should support the allocation and use of research monies in an ethical manner and, thus, should support the appropriate disclosure of results to individual participants and to communities.8 However, the disclosure of results has economic implications for researchers in planning their budgets and for funding agencies in determining an appropriate level and duration of funding. In this article, we briefly review the rationale for offering to disclose research results, focus on specific factors that influence the cost of such a practice and suggest an approach for researchers and funding agencies to consider when developing or assessing research grant applications.

The rationale for disclosure

The offer and receipt of research results has many potential benefits for participants and may have a direct impact on their quality of life. For example, research has shown that women who received mantle radiation for Hodgkin's disease as teenagers are at high risk for secondary breast cancer;9 providing research results to these women may benefit them directly. Participants also benefit from the affirmation of the key role they play in the conduct of research. Disclosure of results may also benefit research as a whole by demonstrating its tangible benefits to the public and by engaging public enthusiasm and support for the principle of research.7

The receipt of results is not without potential for harm and thus requires informed consent and careful design of disclosure programs.7 The possible harms encompass immediate effects, for example distress at learning that one has participated in an inferior arm of a clinical trial, and longer-term harms, including a potential impact on the ability to obtain insurance by those with an anticipated high rate of late effects.

Research participants have indicated that results should be shared in a timely manner.10,11The need for peer review before disclosure to study participants has very significant implications for researchers and funding agencies.7 The resulting increase in the time from the end of data collection to peer review and subsequent publication will require substantially longer periods of research funding than are usually allowed for.12,13 Thus, the moral imperative to offer to return research results will require changes in funding practice to allow for this time frame.

It should be emphasized that no participant is obligated to receive results that he or she does not wish. Participants must be informed of the potential harms and benefits of receiving results.14,15,16 We argue solely for the universal offering of results with appropriate support.

Assessing the cost of disclosure

Factors that affect the complexity of returning research results, and thus costs, fall into 3 broad categories: the risks associated with nontherapeutic and therapeutic procedures of the study;17 the short- and long-term consequences of disclosure, including harms; and the logistics of the study, including its duration and the number and geographic location of the participants. Assessment of these factors can then be used to determine the requirements for returning results (Table 1), following a template of basic elements (Box 1).

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Table 1.

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Box 1.

Study risk

Almost all studies involving interventions of therapeutic intent will have consequences for the participant and, hence, will require some level of disclosure. The method of disclosure — written versus oral or face-to-face — will depend, in part, on the level of risk associated with the therapeutic research components. For example, a randomized trial of treatment for pediatric leukemia could entail significant investment by the child and family, including possible excess risk of life-threatening infections, admission to hospital and toxic effects to organs, and therefore warrant an offer of oral or face-to-face disclosure. In contrast, for a study comparing 2 antifungal medications for athlete's foot, the results may be offered in written format.

Studies of nontherapeutic intention can be divided into those associated with minimal risk versus those involving more than minimal risk. Participants can be expected to have more interest in the outcome of studies with more than minimal risk. Thus, higher-risk studies will likely require more rigorous, direct disclosure of results compared with studies of less direct interest to the participants, such as those exploring basic science questions. An offer of written disclosure is sufficient for nontherapeutic studies with minimal risk and consequences, such as disclosure of survey results.

Although the link between method of disclosure and therapeutic or nontherapeutic risk has not been established, we are in the process of studying whether participants' desire for disclosure is based on such a connection.

We propose the use of a hierarchy of study types, whereby studies are divided according to their therapeutic versus nontherapeutic intent and on a continuum from relatively low risk of participation to high risk. As the risk to the study participant increases, disclosure will likely become more detailed and more time-consuming (incurring greater costs); for studies with little intrinsic risk, a brief statement to each participant will be sufficient.

Consequences of disclosure

The second assessment should estimate the potential consequences to the participant falling into the range of findings, from interventions that will reduce the risk of future harm to those that have no direct impact. An example of the former (a significant consequence) is the need for breast cancer screening in female survivors of adolescent Hodgkin's disease who have received radiotherapy.18 An example of the latter (no anticipated consequence) is the validation of a psychometric tool in normal volunteers.

The return of results itself can be associated with significant distress in participants, including anger, sadness and fear.19 If necessary, the assessment of expected consequences may be assisted by a lay panel (made up of former participants or peers).

We have argued that all human research participants should be accorded the respect of an offer of results. This would require not only a dramatic increase in researchers' investment of time, but may also require modifications in the study design to allow the generation of individual-level results. This would, in turn, have cost implications related to maintenance of privacy and confidentiality. We have previously argued that results for participants should be subject to the same rigor of interpretation that is required for peer-reviewed publication.7 As a result, we believe that only individual-level results with sufficient predictive value should be shared with participants.

Associated costs may, therefore, include costs of study and software design, the extra effort required to generate individual-level results, the increased complexity of maintaining confidentiality, the costs of the disclosure procedure itself and the possible need for counselling by health care professionals beyond oral disclosure.

Logistics of follow-up

The size and duration of the study may have an impact on the sophistication of the database used to compile the results and follow-up procedures, especially when results are not expected for many years.

We believe that participants should be engaged in the process and to some degree be accountable for maintaining a liaison with researchers for the express purpose of receiving results.7 Although a password-protected, research-related Web site may seem appealing to facilitate this, preliminary evidence suggests that participants do not favour this route.20 Lost-to-follow up rates could be improved by providing routine, high-quality information about the potential benefits of receiving research results, an estimate of when the results might be available and information about access to a summary of results.

Summary

Estimating the costs of dissemination will be relatively straightforward for many studies but will be more challenging when it is necessary to quantify the differences in cost due to intrinsic risk, consequences and time elements. Researchers and granting agencies should consider the offer to return results to research participants as a mandatory part of practice and adjust budgets and duration of funding accordingly. If the disclosure is expected to be associated with harm, and if that harm can be minimized through direct disclosure, then direct disclosure ought to be offered. It is essential to determine the wants and needs of participants with respect to how best to offer and disseminate research results, and we are currently exploring these questions.

Footnotes

  • This article has been peer reviewed.

    Contributors: Conrad Fernandez conceived and wrote the initial draft of the manuscript. Chris Skedgel and Charles Weijer contributed further valuable ideas. All of the authors were involved in writing the many draft modifications of this article and approved the version submitted to be published.

    Competing interests: None declared.

    Correspondence to: Dr. Conrad V. Fernandez, IWK Health Centre, Box 3070, 5850 University Ave., Halifax NS B3J 3G9; fax 902 470-7216; conrad.fernandez{at}iwk.nshealth.ca

References

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Considerations and costs of disclosing study findings to research participants
Conrad V. Fernandez, Chris Skedgel, Charles Weijer
CMAJ Apr 2004, 170 (9) 1417-1419; DOI: 10.1503/cmaj.1031668

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Considerations and costs of disclosing study findings to research participants
Conrad V. Fernandez, Chris Skedgel, Charles Weijer
CMAJ Apr 2004, 170 (9) 1417-1419; DOI: 10.1503/cmaj.1031668
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