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A memory and organizational aid improves Alzheimer disease research consent capacity: results of a randomized, controlled trial.

ABSTRACT: Early and progressive cognitive impairments of patients with Alzheimer disease (AD) hinder their capacity to provide informed consent. Unfortunately, the limited research on techniques to improve capacity has shown mixed results. Therefore, the authors tested whether a memory and organizational aid improves the performance of patients with AD on measures of capacity and competency to give informed consent.Patients with AD randomly assigned to standard consent or standard plus a memory and organizational aid.Memory and organizational aid summarized the content of information mandated under the informed consent disclosure requirements of the Common Rule at a sixth grade reading level.Three psychiatrists without access to patient data independently reviewed MacArthur Competence Assessment Tool for Clinical Research (MacCAT-CR) interview transcripts to judge whether the patient was capable of providing informed consent. The agreement of at least two of the three experts defined a participant as capable of providing informed consent. Secondary outcomes are MacCAT-CR measures of understanding, appreciation and reasoning, and comparison with cognitively normal older adult norms.AD intervention and control groups were similar in terms of age, education, and cognitive status. The intervention group was more likely to be judged competent than control group and had higher scores on MacCAT-CR measure of understanding. The intervention had no effect on the measures of appreciation or reasoning.A consent process that addresses the deficits in memory and attention of a patient with AD can improve capacity to give informed consent for early phase AD research. The results also validate the MacCAT-CR as an instrument to measure capacity, especially the understanding subscale.ClinicalTrials.Gov#NCT00105612, http://clinicaltrials.gov/show/NCT00105612.

SUBMITTER: Rubright J

PROVIDER: S-EPMC2992096 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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A memory and organizational aid improves Alzheimer disease research consent capacity: results of a randomized, controlled trial.

Rubright Jonathan J Sankar Pamela P Casarett David J DJ Gur Ruben R Xie Sharon X SX Karlawish Jason J

The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry 20101201 12

<h4>Objectives</h4>Early and progressive cognitive impairments of patients with Alzheimer disease (AD) hinder their capacity to provide informed consent. Unfortunately, the limited research on techniques to improve capacity has shown mixed results. Therefore, the authors tested whether a memory and organizational aid improves the performance of patients with AD on measures of capacity and competency to give informed consent.<h4>Design, setting, and participants</h4>Patients with AD randomly assi ...[more]

PMID: 20808101

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Project description:Results of Alzheimer disease (AD) research assessments typically are not disclosed to participants. Recent research has suggested interest in disclosure, but, to our knowledge, few studies have accounted for awareness of potential benefits and limitations of disclosure.To determine the attitudes of cognitively normal research participants and members of the general public regarding disclosure of AD research results.Participants in a longitudinal aging study (Alzheimer Disease Research Center [ADRC]) were given preintervention and postintervention surveys about disclosure attitudes. In a general public sample (The American Panel Survey), participants responded to a similar survey about disclosure attitudes.Participants in the ADRC sample were randomly assigned to a group (n = 119) that read an education intervention about the usefulness of AD biomarkers or to a placebo group (n = 100) that read as its intervention general information about the ADRC. Participants in the general public sample read a brief vignette describing participation in a longitudinal AD study.Interest in disclosure of AD research results.Cognitively normal ADRC participants (n = 219) were 60.7% (n = 133) female, 83.6% (n = 183) of white race, and reported a mean of 15.91 years of education. Twenty-nine individuals refused participation. The American Panel Survey participants (n = 1418) indicated they did not have AD and were 50.5% (n = 716) female, 76.7% (n = 1087) of white race, and reported a mean of 13.85 years of education. Overall, 77.6% of eligible participants (1583 of 2041) completed the survey in July 2014. Interest in disclosure was high among the ADRC participants (55.1% [119 of 216] were "extremely interested"). Viewing the education intervention predicted lower interest in disclosure (odds ratio, 2.01; 95% CI, 1.15-3.53; P =?.02). High subjective risk of AD, a family history of AD, and minimal attendance at research meetings were associated with high interest after the intervention. In the general public, interest was lower overall (12.5% [174 of 1389] were "extremely interested"), but the subset of participants most likely to join an AD research study reported higher interest (43.5% [40 of 92] were extremely interested).Experience with AD appears to increase interest in disclosure of AD research results. Learning about potential limitations of disclosure somewhat tempered interest. These findings should inform the development of disclosure policies for asymptomatic individuals in AD studies.

Project description:ObjectiveTelemedicine networks are beginning to provide an avenue for conducting emergency medicine research, but using telemedicine to recruit participants for clinical trials has not been validated. The goal of this consent study was to determine whether patient comprehension of telemedicine-enabled research informed consent is noninferior to standard face-to-face (F2F) research informed consent.MethodsA prospective, open-label randomized controlled trial was performed in a 60,000-visit Midwestern academic emergency department (ED) to test whether telemedicine-enabled research informed consent provided noninferior comprehension compared with standard consent. This study was conducted as part of a parent clinical trial evaluating the effectiveness of 0.12% oral chlorhexidine gluconate in preventing hospital-acquired pneumonia among adult ED patients with expected hospital admission. Prior to being recruited into the study, potential participants were randomized in a 1:1 allocation ratio to consent by telemedicine versus standard F2F consent. Telemedicine connectivity was provided using a commercially available interface (REACH platform, Vidyo Inc.) to an emergency physician located in another part of the ED. Comprehension of research consent (primary outcome) was measured using the modified quality of informed consent (QuIC) instrument, a validated tool for measuring research informed consent comprehension. Parent trial accrual rate and qualitative survey data were secondary outcomes.ResultsA total of 131 patients were randomized (n = 64, telemedicine), and 101 QuIC surveys were completed. Comprehension of research informed consent using telemedicine was not inferior to F2F consent (QuIC scores 74.4 ± 8.1 vs. 74.4 ± 6.9 on a 100-point scale, p = 0.999). Subjective understanding of consent (p = 0.194) and parent trial study accrual rates (56% vs. 69%, p = 0.142) were similar.ConclusionTelemedicine is noninferior to F2F consent for delivering research informed consent, with no detected differences in comprehension and patient-reported understanding. This consent study will inform design of future telemedicine-enabled clinical trials.

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A memory and organizational aid improves Alzheimer disease research consent capacity: results of a randomized, controlled trial.

Publications

A memory and organizational aid improves Alzheimer disease research consent capacity: results of a randomized, controlled trial.

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