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Charnysh E, Pal S, Reader JM, Uhlmann WR, McCain S, Sanghavi K, Blasco D, Brandt R, Feero WG, Ferber R, Giri VN, Hendy K, Prince AER, Lee C, Roberts JS. Health care utilization and behavior changes after workplace genetic testing at a large US health care system. Genet Med 2024; 26:101160. [PMID: 38733246 DOI: 10.1016/j.gim.2024.101160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 05/01/2024] [Accepted: 05/01/2024] [Indexed: 05/13/2024] Open
Abstract
PURPOSE This study explored employee health behavior changes and health care utilization after workplace genetic testing (wGT). Wellness-program-associated wGT seeks to improve employee health, but the related health implications are unknown. METHODS Employees of a large US health care system offering wGT (cancer, heart disease, and pharmacogenomics [PGx]) were sent electronic surveys. Self-reported data from those who received test results were analyzed. Descriptive statistics characterized responses, whereas logistic regression analyses explored correlates of responses to wGT. RESULTS 53.9% (n = 418/776) of respondents (88.3% female, mean age = 44 years) reported receiving wGT results. 12.0% (n = 48/399) received results indicating increased risk (IR) of cancer, 9.5% (n = 38/398) had IR of heart disease, and 31.4% (n = 125/398) received informative PGx results. IR results for cancer and/or heart disease (n = 67) were associated with health behavior changes (adjusted odds ratio: 3.23; 95% CI 1.75, 6.13; P < .001) and health care utilization (adjusted odds ratio: 8.60; 95% CI 4.43, 17.5; P < .001). Informative PGx results (n = 125) were associated with medication changes (PGx-informative: 15.2%; PGx-uninformative: 4.8%; P = .002). CONCLUSION This study explored employee responses to wGT, contributing to the understanding of the ethical and social implications of wGT. Receiving IR results from wGT may promote health behavior changes and health care utilization in employees.
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Affiliation(s)
| | - Subhamoy Pal
- Department of Neurology, University of Michigan School of Medicine, Ann Arbor, MI
| | - Jonathan M Reader
- Department of Neurology, University of Michigan School of Medicine, Ann Arbor, MI
| | - Wendy R Uhlmann
- Departments of Internal Medicine and Human Genetics, University of Michigan School of Medicine, Ann Arbor, MI
| | - Sarah McCain
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI
| | - Kunal Sanghavi
- The Jackson Laboratory for Genomic Medicine, Farmington, CT
| | - Drew Blasco
- Department of Social and Behavioral Health, School of Public Health, University of Nevada, Las Vegas, Las Vegas, NV
| | | | | | - Rebecca Ferber
- Departments of Internal Medicine and Human Genetics, University of Michigan School of Medicine, Ann Arbor, MI
| | - Veda N Giri
- Yale School of Medicine and Yale Cancer Center, New Haven, CT
| | - Katherine Hendy
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI
| | | | - Charles Lee
- The Jackson Laboratory for Genomic Medicine, Farmington, CT.
| | - J Scott Roberts
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI.
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Schaeffer E, Yilmaz R, St Louis EK, Noyce AJ. Ethical Considerations for Identifying Individuals in the Prodromal/Early Phase of Parkinson's Disease: A Narrative Review. JOURNAL OF PARKINSON'S DISEASE 2024:JPD230428. [PMID: 38995800 DOI: 10.3233/jpd-230428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2024]
Abstract
The ability to identify individuals in the prodromal phase of Parkinson's disease has improved in recent years, raising the question of whether and how those affected should be informed about the risk of future disease. Several studies investigated prognostic counselling for individuals with isolated REM sleep behavior disorder and have shown that most patients want to receive information about prognosis, but autonomy and individual preferences must be respected. However, there are still many unanswered questions about risk disclosure or early diagnosis of PD, including the impact on personal circumstances, cultural preferences and specific challenges associated with different profiles of prodromal symptoms, genetic testing or biomarker assessments. This narrative review aims to summarize the current literature on prognostic counselling and risk disclosure in PD, as well as highlight future perspectives that may emerge with the development of new biomarkers and their anticipated impact on the definition of PD.
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Affiliation(s)
- Eva Schaeffer
- Department of Neurology, University Hospital Schleswig-Holstein, Campus Kiel and Kiel University, Kiel, Germany
| | - Rezzak Yilmaz
- Department of Neurology, Ankara University School of Medicine, Ankara, Turkey
- Ankara University Brain Research Center, Ankara, Turkey
| | - Erik K St Louis
- Mayo Center for Sleep Medicine, Mayo Clinic, Rochester, MN, USA
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN, USA
- Department of Medicine, Mayo Clinic, Rochester, MN, USA
- Department of Neurology, Mayo Clinic, Rochester, MN, USA
- Mayo Clinic Health System Southwest Wisconsin, La Crosse, WI, USA
| | - Alastair J Noyce
- Centre for Preventive Neurology, Wolfson Institute of Population Health, Queen Mary University of London, London, United Kingdom
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3
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Waterink L, Masselink LA, van der Lee SJ, Visser LNC, Cleutjens S, van der Schaar J, van Harten AC, Scheltens P, Sikkes SAM, van der Flier WM, Zwan MD. Interest in genetic susceptibility testing and disclosure of AD dementia risk in cognitively normal adults: a survey study. Alzheimers Res Ther 2024; 16:1. [PMID: 38167083 PMCID: PMC10759504 DOI: 10.1186/s13195-023-01364-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 12/03/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Apolipoprotein-E (APOE) genetic testing for Alzheimer's disease is becoming more important as clinical trials are increasingly targeting individuals carrying APOE-ε4 alleles. Little is known about the interest in finding out one's genetic risk for Alzheimer's disease in the general population. Our objective was to examine this in a sample of cognitively normal (CN) adults within a population-based online research registry with the goal to implement APOE-ε4 status for trial recruitment. METHODS An online survey was completed by 442 CN participants between the age of 49 and 75 years (56% female) from the Dutch Brain Research Registry. The survey assessed interest in participation in research into, and disclosure of, genetic risk for dementia. The survey assessed interest in participation in research into, and disclosure of, genetic risk for dementia and knowing their genetic risk in different hypothetical risk scenarios (10%, 30%, and 50% genetic risk for dementia at age 85, corresponding to APOEε2/ε2 or ε2/ε3, APOEε3/ε4 or ε2ε4, and APOE-ε4/ε4 genotypes). Cochran's Q and post hoc McNemar tests were used to analyse differences in frequencies across scenarios. RESULTS Most participants were interested in participating in research into and disclosure of their genetic risk (81%). The most reported reason was to contribute to scientific research (94%). Interest was higher in males, whilst lower-educated participants were more often undecided. When provided with different risk scenarios, interest in knowing their risk was somewhat higher in the scenarios with higher risk, i.e. in the 50% (79%) compared to the 10% scenario (73%;χ2(2) = 7.98; p = .005). Most individuals expected they would share their genetic risk with close relatives (77-89%), would participate in medication trials (79-88%), and would make long-term arrangements, e.g. retirement, health care, will (69-82%), with larger proportions for scenarios with higher hypothetical genetic risk. CONCLUSIONS Our findings indicate that the vast majority of CN adults participating in a research registry expresses interest in AD genetic risk research and disclosure. Interest in genetic risk disclosure is higher in scenarios corresponding to the APOE-ε4 genotype. This suggests APOE-ε4 screening within an online research registry is potentially a well-received method to accelerate inclusion for trials.
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Affiliation(s)
- Lisa Waterink
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands.
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, 1081, HV, The Netherlands.
| | - Larissa A Masselink
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
| | - Sven J van der Lee
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, 1081, HV, The Netherlands
- Genomics of Neurodegenerative Diseases and Aging, Human Genetics, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
| | - Leonie N C Visser
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, 1081, HV, The Netherlands
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, 171 77, Stockholm, Sweden
- Department of Medical Psychology, Amsterdam UMC location AMC, University of Amsterdam, Amsterdam, 1105, AZ, the Netherlands
- Amsterdam Public Health research Institute, Quality of Care, Amsterdam, 1105, BP, The Netherlands
| | - Solange Cleutjens
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
| | - Jetske van der Schaar
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, 1081, HV, The Netherlands
| | - Argonde C van Harten
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
| | - Philip Scheltens
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- EQT Life Sciences Partners, Amsterdam, 1071, DV, The Netherlands
| | - Sietske A M Sikkes
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Faculty of Behavioural and Movement Sciences, Department of Clinical, Neuro and Developmental Psychology, Vrije Universiteit, Amsterdam, 1081, HV, The Netherlands
| | - Wiesje M van der Flier
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, 1081, HV, The Netherlands
- Department of Epidemiology and Data Science, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Amsterdam, 1081, HZ, The Netherlands
| | - Marissa D Zwan
- Alzheimer Center Amsterdam, Neurology, Vrije Universiteit Amsterdam, Amsterdam UMC location VUmc, Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Neurodegeneration, Amsterdam, 1081, HV, The Netherlands
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Feldman SJ, Blasco D, Mones M, Scott Roberts J. Interest in and Experience with Genetic Testing for Late-Onset Medical Conditions: Results from the National Poll on Healthy Aging. J Prev Alzheimers Dis 2024; 11:1079-1086. [PMID: 39044520 PMCID: PMC11339685 DOI: 10.14283/jpad.2024.69] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
BACKGROUND The increasing availability of genetic testing for late-onset diseases such as Alzheimer's disease necessitates understanding public perceptions and experiences of such testing among at-risk populations. OBJECTIVES To assess (a) prior uptake of genetic testing (both in medical and direct-to-consumer settings), (b) future interest in genetic testing for late-onset conditions (e.g., Alzheimer's disease, Parkinson's disease), and (c) perceptions of testing pros and cons among middle-to-older aged adults. DESIGN Online, cross-sectional survey study. SETTING The National Poll on Healthy Aging at the University of Michigan is a recurring biannual survey of a nationally representative sample of adults aged 50-80. This study reports on a March 2018 fielding of the survey that included a genetic testing module administered to adults aged 50-64. PARTICIPANTS Study participants were 991 community-dwelling adults aged 50-64. MEASUREMENTS Survey measures assessed (a) prior use of genetic testing, (b) reasons for engaging in genetic testing, (c) interest in different types of genetic testing, including for Alzheimer's disease, Parkinson's disease, and macular degeneration, and (d) perceived benefits, risks, and limitations of testing. RESULTS Previous uptake of genetic testing was limited (medical use: 5.1%; direct-to-consumer: 10.8%), with direct-to-consumer test uptake higher among respondents with household incomes of $100,000 or more. Over half of adults endorsed interest in genetic testing for estimation of disease risk (58.9%), ancestry knowledge (58%), and informing medical care (53.8%). Interest in genetic testing for specific late-onset conditions was even higher, including Alzheimer's disease (70%), Parkinson's disease (65.3%), and macular degeneration (64.3%). Multivariable logistic regression models showed that older adults more likely to be interested in genetic testing for medical or disease risk purposes were those with higher levels of education (college degree or higher) and who endorsed the benefits of genetic testing, whereas respondents who endorsed testing risks and limitations were less likely to express interest. CONCLUSION While prior use of genetic testing among the middle-to-older age population was low, interest in testing for Alzheimer's disease and other late-onset conditions was high. This high interest may translate into increased uptake given expanded access to testing and recent treatment advances for Alzheimer's disease.
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Affiliation(s)
- S J Feldman
- J. Scott Roberts, University of Michigan School of Public Health, USA,
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Kim JE, Tamres LK, Orbell SL, Cheng RZ, Klunk WE, Aizenstein HJ, Butters MA, McDade E, Lingler JH. "And Does That Necessarily Mean Absolutely Alzheimer's?" An Analysis of Questions Raised Following Amyloid PET Results Disclosure. Am J Geriatr Psychiatry 2024; 32:45-54. [PMID: 37634955 PMCID: PMC10841154 DOI: 10.1016/j.jagp.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 08/03/2023] [Accepted: 08/07/2023] [Indexed: 08/29/2023]
Abstract
INTRODUCTION Amyloid PET scans provide individuals with mild cognitive impairment (MCI) information about their risk of progressing to Alzheimer's dementia (AD). Given the wide-ranging implications of this information, best practice guidelines are needed to support researchers and clinicians disclosing these high-stakes test results. To inform the development of such guidelines, this analysis aims to describe questions and concerns raised during the disclosure of amyloid PET results in the context of MCI. METHODS Qualitative description was performed to analyze (n = 34) transcripts of audio-recorded amyloid PET results disclosure sessions involving MCI care dyads. The analysis focused on characterizing the frequency and nature of questions raised during an open question-and-answer (Q&A) period following the return of scan results using a standardized protocol. RESULTS Nearly all (n = 32/34) dyads posed questions during Q&A. Questions fell within six main categories with the most common being requests for clarification regarding AD/MCI, and next steps given the result. Questions were interspersed with comments reflecting the need for emotional support. Independently administered assessments of comprehension of results showed that, following the disclosure and Q&A, 31/32 participants with MCI and 31/31 care partners scored ≥4 on a 5-point scale. The number of questions asked by care partners during Q&A positively correlated with their level of comprehension (n = 31, Spearman's r = 0.370, p = 0.040). DISCUSSION This analysis highlights the value of providing opportunities for patients and their family members to ask questions upon learning patients' brain amyloid status. Disclosing clinicians should be prepared to provide clarification, resources, and support to patients and families during the return of amyloid PET results.
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Affiliation(s)
- Jeong Eun Kim
- University of Pittsburgh School of Nursing (JEK, LKT, SLO, RZC, JHL), Pittsburgh, PA.
| | - Lisa K Tamres
- University of Pittsburgh School of Nursing (JEK, LKT, SLO, RZC, JHL), Pittsburgh, PA; University of Pittsburgh Alzheimer's Disease Research Center (LKT, WEK, HJA, MAB, EM, JHL), Pittsburgh, PA
| | - Staci L Orbell
- University of Pittsburgh School of Nursing (JEK, LKT, SLO, RZC, JHL), Pittsburgh, PA
| | - Rebekah Z Cheng
- University of Pittsburgh School of Nursing (JEK, LKT, SLO, RZC, JHL), Pittsburgh, PA
| | - William E Klunk
- University of Pittsburgh Alzheimer's Disease Research Center (LKT, WEK, HJA, MAB, EM, JHL), Pittsburgh, PA; Department of Psychiatry, School of Medicine, University of Pittsburgh (WEK, HJA, MAB, EM, JHL), Pittsburgh, PA
| | - Howard J Aizenstein
- University of Pittsburgh Alzheimer's Disease Research Center (LKT, WEK, HJA, MAB, EM, JHL), Pittsburgh, PA; Department of Psychiatry, School of Medicine, University of Pittsburgh (WEK, HJA, MAB, EM, JHL), Pittsburgh, PA
| | - Meryl A Butters
- University of Pittsburgh Alzheimer's Disease Research Center (LKT, WEK, HJA, MAB, EM, JHL), Pittsburgh, PA; Department of Psychiatry, School of Medicine, University of Pittsburgh (WEK, HJA, MAB, EM, JHL), Pittsburgh, PA
| | - Eric McDade
- University of Pittsburgh Alzheimer's Disease Research Center (LKT, WEK, HJA, MAB, EM, JHL), Pittsburgh, PA; Department of Psychiatry, School of Medicine, University of Pittsburgh (WEK, HJA, MAB, EM, JHL), Pittsburgh, PA
| | - Jennifer H Lingler
- University of Pittsburgh School of Nursing (JEK, LKT, SLO, RZC, JHL), Pittsburgh, PA; University of Pittsburgh Alzheimer's Disease Research Center (LKT, WEK, HJA, MAB, EM, JHL), Pittsburgh, PA; Department of Psychiatry, School of Medicine, University of Pittsburgh (WEK, HJA, MAB, EM, JHL), Pittsburgh, PA
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6
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Wolf SM, Green RC. Return of Results in Genomic Research Using Large-Scale or Whole Genome Sequencing: Toward a New Normal. Annu Rev Genomics Hum Genet 2023; 24:393-414. [PMID: 36913714 PMCID: PMC10497726 DOI: 10.1146/annurev-genom-101122-103209] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Genome sequencing is increasingly used in research and integrated into clinical care. In the research domain, large-scale analyses, including whole genome sequencing with variant interpretation and curation, virtually guarantee identification of variants that are pathogenic or likely pathogenic and actionable. Multiple guidelines recommend that findings associated with actionable conditions be offered to research participants in order to demonstrate respect for autonomy, reciprocity, and participant interests in health and privacy. Some recommendations go further and support offering a wider range of findings, including those that are not immediately actionable. In addition, entities covered by the US Health Insurance Portability and Accountability Act (HIPAA) may be required to provide a participant's raw genomic data on request. Despite these widely endorsed guidelines and requirements, the implementation of return of genomic results and data by researchers remains uneven. This article analyzes the ethical and legal foundations for researcher duties to offer adult participants their interpreted results and raw data as the new normal in genomic research.
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Affiliation(s)
- Susan M Wolf
- Law School and Medical School, University of Minnesota, Minneapolis, Minnesota, USA;
| | - Robert C Green
- Genomes2People Research Program, Harvard Medical School, Mass General Brigham, Broad Institute, and Ariadne Labs, Boston, Massachusetts, USA;
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Brodtmann A, Darby D, Oboudiyat C, Mahoney CJ, Le Heron C, Panegyres PK, Brew B. Assessing preparedness for Alzheimer disease-modifying therapies in Australasian health care systems. Med J Aust 2023; 218:247-249. [PMID: 36934371 DOI: 10.5694/mja2.51880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 02/01/2023] [Accepted: 02/08/2023] [Indexed: 03/20/2023]
Affiliation(s)
- Amy Brodtmann
- Monash University, Melbourne, VIC.,Florey Institute of Neuroscience and Mental Health, Melbourne, VIC
| | | | | | | | | | | | - Bruce Brew
- University of New South Wales, Sydney, NSW
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Alber J, Popescu D, Thompson LI, Tonini GM, Arthur E, Oh H, Correia S, Salloway SP, Lee AK. Safety and Tolerability of APOE Genotyping and Disclosure in Cognitively Normal Volunteers From the Butler Alzheimer's Prevention Registry. J Geriatr Psychiatry Neurol 2022; 35:293-301. [PMID: 33550928 DOI: 10.1177/0891988721993575] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AIMS Alzheimer's disease (AD) is a gradually progressive neurodegenerative disease that ultimately results in total loss of cognitive and functional independence in older adults. This study aimed to examine the safety and tolerability of APOE disclosure in community-dwelling, cognitively normal (CN) older adults from the Butler Alzheimer's Prevention Registry (BAPR), and to determine whether APOE disclosure impacted participant's decisions to participate in AD clinical research. METHODS 186 (N = 106 ∊4 non-carriers, 80 ∊4 carriers) CN older adults aged 58-78 from the BAPR completed 2 visits: one for psychological readiness screening and genotyping and one for APOE disclosure. Online follow-ups were completed 3 days, 6 weeks, and 6 months post-disclosure. Primary outcomes were scores on self-report measures of depression, anxiety, impact of events, and perceived risk of AD, along with enrollment in AD clinical trials. RESULTS ∊4 carriers and non-carriers did not differ significantly on measures of depression, anxiety, or suicidal ideation over the 6-month follow-up period. ∊4 carriers reported higher impact of disclosure than non-carriers immediately after disclosure, but both groups' scores on impact of events measures remained sub-clinical. ∊4 carriers and non-carriers were equally likely to participate in AD research after disclosure, with genotype-dependent differences in type of clinical trial enrollment. CONCLUSIONS APOE genotyping and disclosure was safe and well tolerated in a group of CN, community-dwelling older adults, who were pre-screened after volunteering for AD research through BAPR. Implications for the inclusion of APOE genotyping and disclosure at AD clinical trial sites are discussed.
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Affiliation(s)
- Jessica Alber
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,George and Anne Ryan Institute for Neuroscience, University of Rhode Island, Providence, RI, USA.,Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Providence, RI, USA
| | - Dominique Popescu
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
| | - Louisa I Thompson
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
| | | | - Edmund Arthur
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,Department of Biomedical and Pharmaceutical Sciences, University of Rhode Island, Providence, RI, USA
| | - Hwamee Oh
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA.,Carney Institute for Brain Science, Brown University, Providence, RI, USA
| | - Stephen Correia
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
| | - Stephen P Salloway
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA.,Department of Neurology, Alpert Medical School of Brown University, Providence, RI, USA
| | - Athene K Lee
- Butler Hospital Memory & Aging Program, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
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9
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van der Schaar J, Visser LNC, Bouwman FH, Ket JCF, Scheltens P, Bredenoord AL, van der Flier WM. Considerations regarding a diagnosis of Alzheimer's disease before dementia: a systematic review. Alzheimers Res Ther 2022; 14:31. [PMID: 35144684 PMCID: PMC8829985 DOI: 10.1186/s13195-022-00971-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 01/31/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND The NIA-AA research framework proposes a purely biological definition of Alzheimer's disease (AD). This implies that AD can be diagnosed based on biomarker abnormalities, irrespective of clinical manifestation. While this brings opportunities, it also raises challenges. We aimed to provide an overview of considerations regarding the disclosure of AD pathology before the onset of dementia. METHODS A systematic literature review was conducted and reported according to PRISMA guidelines. We searched PubMed, Embase, APA PsycINFO, and Web of Science Core Collection (on 10 December 2020) for references on conveying AD biomarker results to individuals without dementia. Our query combined variations on the terms Alzheimer's disease, disclosure, or diagnosis, preclinical or prodromal, and biomarkers. Two reviewers independently screened the resulting 6860 titles and abstracts for eligibility and examined 162 full-text records for relevance. We included theoretical articles in English, on communicating amyloid and/or tau results to individuals with mild cognitive impairment, subjective cognitive decline, or normal cognition. MAXQDA-software was used for inductive data analysis. RESULTS We included 27 publications. From these, we extracted 26 unique considerations, which we grouped according to their primary relevance to a clinical, personal, or societal context. Clinical considerations included (lack of) validity, utility, and disclosure protocols. Personal considerations covered psychological and behavioral implications, as well as the right to (not) know. Finally, societal considerations comprised the risk of misconception, stigmatization, and discrimination. Overall, views were heterogeneous and often contradictory, with emphasis on harmful effects. CONCLUSIONS We found 26 diverse and opposing considerations, related to a clinical, personal, or societal context, which are relevant to diagnosing AD before dementia. The theoretical literature tended to focus on adverse impact and rely on common morality, while the motivation for and implications of biomarker testing are deeply personal. Our findings provide a starting point for clinicians to discuss biomarker-based diagnosis with their patients, which will become even more relevant in light of the conditional approval of a first disease-modifying drug for AD.
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Affiliation(s)
- Jetske van der Schaar
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, De Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands.
| | - Leonie N C Visser
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, De Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Femke H Bouwman
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, De Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
| | | | - Philip Scheltens
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, De Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
| | - Annelien L Bredenoord
- Erasmus School of Philosophy, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Wiesje M van der Flier
- Alzheimer Center Amsterdam, Department of Neurology, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam UMC, De Boelelaan 1118, 1081, HZ, Amsterdam, The Netherlands
- Department of Epidemiology & Data Sciences, Vrije Universiteit Amsterdam, Amsterdam UMC, Amsterdam, The Netherlands
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Mozersky J, Roberts JS, Rumbaugh M, Chhatwal J, Wijsman E, Galasko D, Blacker D. Spillover: The Approval of New Medications for Alzheimer's Disease Dementia Will Impact Biomarker Disclosure Among Asymptomatic Research Participants. J Alzheimers Dis 2022; 90:1035-1043. [PMID: 35404285 PMCID: PMC9794032 DOI: 10.3233/jad-220113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this article we address how the recent, and anticipated upcoming, FDA approvals of novel anti-amyloid medications to treat individuals with mild Alzheimer's disease (AD) dementia could impact disclosure of biomarker results among asymptomatic research participants. Currently, research is typically the context where an asymptomatic individual may have the option to learn their amyloid biomarker status. Asymptomatic research participants who learn their amyloid status may have questions regarding the meaning of this result and the implications for accessing a potential intervention. After outlining our rationale, we provide examples of how current educational materials used in research convey messages regarding amyloid positivity and the availability of treatments, or lack thereof. We suggest language to improve messaging, as well as strengths of current materials, in addressing these issues for research participants. Although novel medications are currently only approved for use among symptomatic individuals, their availability may have implications for disclosure among asymptomatic research participants with evidence of amyloid deposition, who may be especially interested in information on these interventions for potential prevention, or future treatment, of mild cognitive impairment or dementia due to AD.
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Affiliation(s)
- Jessica Mozersky
- Bioethics Research Center, Division of General Medical Sciences, Washington University School of Medicine, St. Louis, MO, USA
| | - J. Scott Roberts
- Department of Health Behavior & Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Malia Rumbaugh
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jasmeer Chhatwal
- Massachusetts General Hospital and Brigham and Women’s Hospitals, Harvard Medical School, Boston, MA, USA
| | - Ellen Wijsman
- Department of Medicine, Division of Medical Genetics, University of Washington, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Douglas Galasko
- Department of Neurosciences and ADRC, University of California San Diego, San Diego, CA, USA
| | - Deborah Blacker
- Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, MA, USA
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11
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Abstract
Alzheimer's disease (AD) research, treatment, and prevention focus increasingly on developing personalized interventions based on personal genetic, biological, phenotypic data, for early intervention (EI) to limit harm. This approach has much to recommend it, but important ethical and philosophical challenges follow that should be considered, which we analyze here. We argue that advancing understanding of the causes of AD undermines the clarity of the distinction between primary and secondary prevention. This makes it increasingly unclear how primary and secondary categories can be appealed to as the basis for making judgements about what interventions are permissible, and for distinguishing between acceptably vs unacceptably early points in life to intervene. Timely efforts at prevention are vital for limiting harm from AD and given the logic of EI is that, in presence of risk, earlier is better, one might assume that earliest is best. This may or may not be the case; however, the permissibility of intervening in different ways at different stages of life is complex and turns on numerous contextual factors. We consider the particular ethical implications of intervening at different points in the life course, presenting a valuable resource for negotiating clinical and policy implications of EI in AD.
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Affiliation(s)
- Alex McKeown
- University of Oxford and Wellcome Centre for Ethics and Humanities
| | - Gin S Malhi
- University of Sydney Faculty of Medicine and Health
| | - Ilina Singh
- University of Oxford and Wellcome Centre for Ethics and Humanities
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12
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Rostamzadeh A, Schwegler C, Gil-Navarro S, Rosende-Roca M, Romotzky V, Ortega G, Canabate P, Moreno M, Schmitz-Luhn B, Boada M, Jessen F, Woopen C. Biomarker-Based Risk Prediction of Alzheimer’s Disease Dementia in Mild Cognitive Impairment: Psychosocial, Ethical, and Legal Aspects. J Alzheimers Dis 2021; 80:601-617. [DOI: 10.3233/jad-200484] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background: Today, a growing number of individuals with mild cognitive impairment (MCI) wish to assess their risk of developing Alzheimer’s disease (AD) dementia. The expectations as well as the effects on quality of life (QoL) in MCI patients and their close others through biomarker-based dementia risk estimation are not well studied. Objective: The PreDADQoL project aims at providing empirical data on effects of such prediction on QoL and at developing an ethical and legal framework of biomarker-based dementia risk estimation in MCI. Methods: In the empirical study, 100 MCI-patients and their close others will be recruited from two sites (Germany and Spain). They receive standardized counselling on cerebrospinal fluid (CSF) biomarker-based prediction of AD dementia and a risk disclosure based on their AD biomarker status. A mixed methods approach will be applied to assess outcomes. Results: The pilot-study yielded a specification of the research topics and newly developed questionnaires for the main assessment. Within this binational quantitative and qualitative study, data on attitudes and expectations toward AD risk prediction, QoL, risk communication, coping strategies, mental health, lifestyle changes, and healthcare resource utilization will be obtained. Together with the normative part of the project, an empirically informed ethical and legal framework for biomarker-based dementia risk estimation will be developed. Conclusion: The empirical research of the PreDADQoL study together with the ethical and legal considerations and implications will help to improve the process of counselling and risk disclosure and thereby positively affect QoL and health of MCI-patients and their close others in the context of biomarker-based dementia risk estimation.
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Affiliation(s)
- Ayda Rostamzadeh
- Department of Psychiatry and Psychotherapy, Medical Faculty, University of Cologne, Cologne, Germany
| | - Carolin Schwegler
- Cologne Center for Ethics, Rights, Economics, and Social Sciences of Health (ceres), University of Cologne, Cologne, Germany
| | - Silvia Gil-Navarro
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Maitée Rosende-Roca
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Vanessa Romotzky
- Cologne Center for Ethics, Rights, Economics, and Social Sciences of Health (ceres), University of Cologne, Cologne, Germany
| | - Gemma Ortega
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Pilar Canabate
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Mariola Moreno
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Björn Schmitz-Luhn
- Cologne Center for Ethics, Rights, Economics, and Social Sciences of Health (ceres), University of Cologne, Cologne, Germany
| | - Mercè Boada
- Research Center and Memory Clinic, Fundació ACE, Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - Frank Jessen
- Department of Psychiatry and Psychotherapy, Medical Faculty, University of Cologne, Cologne, Germany
- German Center for Neurodegenerative Diseases (DZNE), Venusberg Campus 1, Bonn, Germany
- Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | - Christiane Woopen
- Cologne Center for Ethics, Rights, Economics, and Social Sciences of Health (ceres), University of Cologne, Cologne, Germany
- Institute for the History of Medicine and Medical Ethics, Research Unit Ethics, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
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13
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Largent EA, Bhardwaj T, Abera M, Stites SD, Harkins K, Lerner AJ, Bradbury AR, Karlawish J. Disclosing Genetic Risk of Alzheimer's Disease to Cognitively Unimpaired Older Adults: Findings from the Study of Knowledge and Reactions to APOE Testing (SOKRATES II). J Alzheimers Dis 2021; 84:1015-1028. [PMID: 34602479 PMCID: PMC8629880 DOI: 10.3233/jad-210675] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Current practice guidelines recommend against Apolipoprotein E (APOE) testing. However, advances in Alzheimer's disease (AD) research and care may soon change this. OBJECTIVE To examine longitudinally the experience of learning an APOE result and, if an ɛ4 carrier, taking a disease-specific treatment to reduce one's risk of AD. METHODS Fifty ɛ4 carriers and 20 non-carriers completed semi-structured interviews 3 months and 15 months after APOE disclosure. RESULTS Individuals generally understand their APOE results. While non-carriers felt relief, ɛ4 carriers often described themselves as disappointed by their result but nevertheless glad to know. Carriers expressed concerns about stigma and discrimination, including in the workplace. Carriers adopted new health behaviors at higher rates than non-carriers and revised their future plans to account for their increased risk of AD. Individuals participating in research were hopeful that their participation would help them or others; individuals who learned they were at increased risk for AD but who could not participate in research were disappointed. CONCLUSION Providers disclosing APOE results should be sensitive to how APOE results shape emotions, self-perceptions, and attitudes about memory; raise concerns about stigma and discrimination in personal and professional relationships; influence health behaviors and decision-making; and can have follow-on effects on family members.
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Affiliation(s)
- Emily A Largent
- Department of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Maramawit Abera
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Shana D Stites
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kristin Harkins
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Alan J Lerner
- Brain Health and Memory Center, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Angela R Bradbury
- Department of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jason Karlawish
- Department of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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14
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Stewart DR, Frone MN, Chanock SJ. Stomaching Multigene Panel Testing: What to Do About CDH1? J Natl Cancer Inst 2020; 112:325-326. [PMID: 31841165 DOI: 10.1093/jnci/djz230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022] Open
Affiliation(s)
- Douglas R Stewart
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD
| | - Megan N Frone
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Rockville, MD
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15
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Bardach SH, Jicha GA, Karanth S, Zhang X, Abner EL. Genetic Sample Provision Among National Alzheimer's Coordinating Center Participants. J Alzheimers Dis 2020; 69:123-133. [PMID: 30958359 DOI: 10.3233/jad-181159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND Genetic data help detect preclinical Alzheimer's disease and target individuals for clinical trials, making genetic research engagement critical for continued advancement in dementia prevention and treatment. OBJECTIVE To understand what individual and institutional factors may relate to provision of genetic samples within the Alzheimer's Disease Centers. METHODS Data from the National Alzheimer's Coordinating Center Uniform Data Set (2009-2016) were obtained along with genetic sample availability. Logistic regression was used to assess independent contributions of demographic and clinical characteristics to the probability of sample provision. Sites contributing data completed a brief survey exploring regulatory and scientific issues related to genetic research engagement. RESULTS Just over half (52.1%) of the 27,519 unique participants had genetic data available. Female sex, white race, non-Hispanic ethnicity, normal cognition, and greater than 5 years of follow-up were associated with greater probability of availability. Sites identified refusals as the most frequent barrier to sample provision, followed by staff availability. CONCLUSION These results highlight the importance of strategies to promote minority engagement and encourage earlier genetic research participation.
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Affiliation(s)
| | | | | | - Xuan Zhang
- University of Kentucky, Lexington, KY, USA
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16
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Hercher L. Discouraging Elective Genetic Testing of Minors: A Norm under Siege in a New Era of Genomic Medicine. Cold Spring Harb Perspect Med 2020; 10:a036657. [PMID: 31548217 PMCID: PMC7197418 DOI: 10.1101/cshperspect.a036657] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Consistently, the field of genetic counseling has advocated that parents be advised to defer elective genetic testing of minors until adulthood to prevent a range of potential harms, including stigma, discrimination, and the loss of the child's ability to decide for him- or herself as an adult. However, consensus around the policy of "defer-when-possible" obscures the extent to which this norm is currently under siege. Increasingly, routine use of full or partial genome sequencing challenges our ability to control what is discovered in childhood or, when applied in a prenatal context, even before birth. The expansion of consumer-initiated genetic testing services challenges our ability to restrict what is available to minors. As the barriers to access crumble, medical professionals should proceed with caution, bearing in mind potential risks and continuing to assess the impact of genetic testing on this vulnerable population.
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Affiliation(s)
- Laura Hercher
- Sarah Lawrence College, Joan H. Marks Graduate Program in Human Genetics, Bronxville, New York 10708, USA
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17
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Points to consider for reporting of germline variation in patients undergoing tumor testing: a statement of the American College of Medical Genetics and Genomics (ACMG). Genet Med 2020; 22:1142-1148. [PMID: 32321997 DOI: 10.1038/s41436-020-0783-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 02/08/2023] Open
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18
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Christensen KD, Karlawish J, Roberts JS, Uhlmann WR, Harkins K, Wood EM, Obisesan TO, Le LQ, Cupples LA, Zoltick ES, Johnson MS, Bradbury MK, Waterston LB, Chen CA, Feldman S, Perry DL, Green RC. Disclosing genetic risk for Alzheimer's dementia to individuals with mild cognitive impairment. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2020; 6:e12002. [PMID: 32211507 PMCID: PMC7087414 DOI: 10.1002/trc2.12002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/26/2019] [Indexed: 01/08/2023]
Abstract
INTRODUCTION The safety of predicting conversion from mild cognitive impairment (MCI) to Alzheimer's disease (AD) dementia using apolipoprotein E (APOE) genotyping is unknown. METHODS We randomized 114 individuals with MCI to receive estimates of 3-year risk of conversion to AD dementia informed by APOE genotyping (disclosure arm) or not (non-disclosure arm) in a non-inferiority clinical trial. Primary outcomes were anxiety and depression scores. Secondary outcomes included other psychological measures. RESULTS Upper confidence limits for randomization arm differences were 2.3 on the State Trait Anxiety Index and 0.5 on the Geriatric Depression Scale, below non-inferiority margins of 3.3 and 1.0. Moreover, mean scores were lower in the disclosure arm than non-disclosure arm for test-related positive impact (difference: -1.9, indicating more positive feelings) and AD concern (difference: -0.3). DISCUSSION Providing genetic information to individuals with MCI about imminent risk for AD does not increase risks of anxiety or depression and may provide psychological benefits.
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Affiliation(s)
- Kurt D. Christensen
- Department of Population MedicineHarvard Pilgrim Health Care Institute and Harvard Medical SchoolBostonMassachusettsUSA
- Broad Institute of Harvard and MITCambridgeMassachusettsUSA
| | - Jason Karlawish
- Department of MedicinePerelman School of Medicine at the University of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - J. Scott Roberts
- Department of Health Behavior and Health EducationUniversity of Michigan School of Public HealthAnn ArborMichiganUSA
| | - Wendy R. Uhlmann
- Departments of Internal Medicine and Human GeneticsUniversity of MichiganAnn ArborMichiganUSA
| | - Kristin Harkins
- Department of MedicinePerelman School of Medicine at the University of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Elisabeth M. Wood
- Department of MedicinePerelman School of Medicine at the University of PennsylvaniaPhiladelphiaPennsylvaniaUSA
| | - Thomas O. Obisesan
- Department of MedicineHoward University College of MedicineWashington, DCUSA
| | - Lan Q. Le
- Department of Health Behavior and Health EducationUniversity of Michigan School of Public HealthAnn ArborMichiganUSA
| | - L. Adrienne Cupples
- Departments of Biostatistics and EpidemiologyBoston University School of Public HealthBostonMassachusettsUSA
| | - Emilie S. Zoltick
- Division of Genetics, Department of MedicineBrigham and Women's HospitalBostonMassachusettsUSA
| | - Megan S. Johnson
- Department of MedicineHoward University College of MedicineWashington, DCUSA
| | | | - Leo B. Waterston
- Center for Outcomes Research & Evaluation (CORE)Maine Medical Center Research InstitutePortlandMaineUSA
| | - Clara A. Chen
- Biostatistics and Epidemiology Data Analytics CenterBoston University School of Public HealthBostonMassachusettsUSA
| | - Sara Feldman
- Department of Health Behavior and Health EducationUniversity of Michigan School of Public HealthAnn ArborMichiganUSA
| | - Denise L. Perry
- Division of Genetics, Department of MedicineBrigham and Women's HospitalBostonMassachusettsUSA
| | - Robert C. Green
- Broad Institute of Harvard and MITCambridgeMassachusettsUSA
- Division of Genetics, Department of MedicineBrigham and Women's HospitalBostonMassachusettsUSA
- Department of MedicineHarvard Medical SchoolBostonMassachusettsUSA
- Partners Personalized MedicineBostonMassachusettsUSA
| | - for the REVEAL Study Group
- Department of Population MedicineHarvard Pilgrim Health Care Institute and Harvard Medical SchoolBostonMassachusettsUSA
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19
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Manrique de Lara A, Soto-Gómez L, Núñez-Acosta E, Saruwatari-Zavala G, Rentería ME. Ethical issues in susceptibility genetic testing for late-onset neurodegenerative diseases. Am J Med Genet B Neuropsychiatr Genet 2019; 180:609-621. [PMID: 30525300 DOI: 10.1002/ajmg.b.32699] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/16/2018] [Accepted: 10/30/2018] [Indexed: 12/12/2022]
Abstract
Genome-wide association studies have revolutionized our understanding of the genetic architecture of complex traits and diseases over the last decade. This knowledge is enabling clinicians, researchers, and direct-to-consumer genetics companies to conduct disease susceptibility testing based on powerful methods such as polygenic risk scoring. However, these technologies raise a set of complex ethical, legal, social, and policy considerations. Here we review and discuss a series of ethical dilemmas associated with susceptibility genetic testing for the two most common late-onset neurodegenerative diseases, Alzheimer's and Parkinson's disease, including testing in asymptomatic individuals. Among others, these include informed consent, disclosure of results and unexpected findings, mandatory screening, privacy and confidentiality, and stigma and genetic discrimination. Importantly, appropriate counseling is a deciding factor for the ethical soundness of genetic testing, which poses a challenge for the regulation of these tests and the training of healthcare professionals. As genetic knowledge about these diseases continues growing and genetic testing becomes more widespread, it is increasingly important to raise awareness among researchers, medical practitioners, genetic counselors, and decision makers about the ethical, legal, and social issues associated with genetic testing for polygenic diseases.
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Affiliation(s)
- Amaranta Manrique de Lara
- Licenciatura en Ciencias Genómicas, Instituto de Biotecnología y Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Liliana Soto-Gómez
- Instituto de Investigaciones Jurídicas, Universidad Nacional Autónoma de México, Coyoacán, Ciudad de México, Mexico
| | - Elisa Núñez-Acosta
- Oficina de Información Científica y Tecnológica para el Congreso de la Unión (INCyTU), Foro Consultivo Científico y Tecnológico, A.C., Coyoacán, Ciudad de México, Mexico
| | - Garbiñe Saruwatari-Zavala
- Departamento de Estudios Jurídicos, Éticos y Sociales, Instituto Nacional de Medicina Genómica, Tlalpan, Ciudad de México, Mexico
| | - Miguel E Rentería
- Department of Genetics & Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia
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20
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Best MC, Butow P, Jacobs C, Savard J, Biesecker B, Ballinger ML, Bartley N, Davies G, Napier CE, Smit AK, Thomas DM, Newson AJ. Who should access germline genome sequencing? A mixed methods study of patient views. Clin Genet 2019; 97:329-337. [PMID: 31674008 DOI: 10.1111/cge.13664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/29/2019] [Accepted: 10/07/2019] [Indexed: 11/29/2022]
Abstract
Implementation of any new medical test, including germline genome sequencing (GS) to inform cancer risk, should take place only when a test is effective, ethically justifiable and acceptable to a population. Little empirical evidence exists on patient views regarding GS for cancer risk. The aim of this study was to elicit opinions on who should be offered GS and who should pay for it. Participants with a probable genetic basis for their cancer (n = 335) and blood relatives (n = 199) were recruited to undergo GS and invited to complete questionnaires at baseline. A subset (n = 40) also participated in qualitative interviews about their views regarding access to GS to detect cancer risk. Our response rate was 92% for questionnaires and 100% for interviews. Participants expressed high enthusiasm overall for access to GS for those with a family history of cancer and anyone who requested testing, but enthusiasm was lower for universal access, if opting out was possible and finances not an issue. Rationales for these views reflected maximising the sound use of resources. Challenges to introducing community screening via GS to limit cancer burden were raised, including the current limits of science and individual ability to cope with uncertain results. Participants undergoing GS supported cancer risk testing for those with a family history of cancer but were concerned about the challenges of designing and implementing a population-based GS cancer-screening program.
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Affiliation(s)
- Megan C Best
- Faculty of Science/Psycho-oncology Co-operative Research Group (PoCoG); Faculty of Medicine and Health, PoCoG, University of Sydney, Sydney Health Ethics, Camperdown, Australia
| | - Phyllis Butow
- Faculty of Science/Psycho-oncology Co-operative Research Group (PoCoG); Faculty of Medicine and Health, PoCoG, University of Sydney, Camperdown, Australia
| | - Chris Jacobs
- Faculty of Health/Graduate School of Health, University of Technology Sydney, Sydney, Australia
| | | | - Barbara Biesecker
- Newborn Screening, Ethics and Disability Studies, RTI International, Washington, DC, USA
| | - Mandy L Ballinger
- CancerTheme/Genomic Cancer Medicine, St Vincent's Clinical School, UNSW, Garvan Institute of Medical Research, Sydney, Australia
| | - Nicci Bartley
- Faculty of Science/PoCoG, School of Psychology, University of Sydney, Camperdown, Australia
| | - Grace Davies
- Faculty of Science/PoCoG, School of Psychology, University of Sydney, Camperdown, Australia
| | | | - Amelia K Smit
- Sydney School of Public Health, Cancer Epidemiology and Prevention Research, Sydney Health Ethics, School of Public Health, Melanoma Institute Australia, University of Sydney, Sydney, Australia
| | - David M Thomas
- CancerTheme/Genomic Cancer Medicine, St Vincent's Clinical School, UNSW, Garvan Institute of Medical Research, Sydney, Australia
| | - Ainsley J Newson
- Faculty of Medicine and Health, Sydney School of Public Health, Sydney Health Ethics, University of Sydney, Sydney, Australia
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21
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Langlois CM, Bradbury A, Wood EM, Roberts JS, Kim SYH, Riviere ME, Liu F, Reiman EM, Tariot PN, Karlawish J, Langbaum JB. Alzheimer's Prevention Initiative Generation Program: Development of an APOE genetic counseling and disclosure process in the context of clinical trials. ALZHEIMERS & DEMENTIA-TRANSLATIONAL RESEARCH & CLINICAL INTERVENTIONS 2019; 5:705-716. [PMID: 31921963 PMCID: PMC6944715 DOI: 10.1016/j.trci.2019.09.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Introduction As the number of Alzheimer's disease (AD) prevention studies grows, many individuals will need to learn their genetic and/or biomarker risk for the disease to determine trial eligibility. An alternative to traditional models of genetic counseling and disclosure is needed to provide comprehensive standardized counseling and disclosure of apolipoprotein E (APOE) results efficiently, safely, and effectively in the context of AD prevention trials. Methods A multidisciplinary Genetic Testing, Counseling, and Disclosure Committee was established and charged with operationalizing the Alzheimer's Prevention Initiative (API) Genetic Counseling and Disclosure Process for use in the API Generation Program trials. The objective was to provide consistent information to research participants before and during the APOE counseling and disclosure session using standardized educational and session materials. Results The Genetic Testing, Counseling, and Disclosure Committee created a process consisting of eight components: requirements of APOE testing and reports, psychological readiness assessment, determination of AD risk estimates, guidance for identifying providers of disclosure, predisclosure education, APOE counseling and disclosure session materials, APOE counseling and disclosure session flow, and assessing APOE disclosure impact. Discussion The API Genetic Counseling and Disclosure Process provides a framework for large-scale disclosure of APOE genotype results to study participants and serves as a model for disclosure of biomarker results. The process provides education to participants about the meaning and implication(s) of their APOE results while also incorporating a comprehensive assessment of disclosure impact. Data assessing participant safety and psychological well-being before and after APOE disclosure are still being collected and will be presented in a future publication. Participants may need to learn their risk for Alzheimer's disease to enroll in studies. Alternatives to traditional models of apolipoprotein E counseling and disclosure are needed. An alternative process was developed by the Alzheimer's Prevention Initiative. This process has been implemented by the Alzheimer's Prevention Initiative Generation Program.
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Affiliation(s)
| | - Angela Bradbury
- Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, PA, USA
| | - Elisabeth M Wood
- Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, PA, USA
| | - J Scott Roberts
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | | | | | - Fonda Liu
- Novartis Pharmaceuticals Corporation, East Hanover, NJ, USA
| | - Eric M Reiman
- Banner Alzheimer's Institute, Phoenix, AZ, USA.,Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA.,Department of Psychiatry, University of Arizona School of Medicine - Phoenix, Phoenix, AZ, USA.,Department of Psychiatry, University of Arizona, Tucson, AZ, USA.,Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA.,Arizona Alzheimer's Consortium, Phoenix, AZ, USA
| | | | - Jason Karlawish
- Departments of Medicine, Medical Ethics and Health Policy, and Neurology, University of Pennsylvania, Philadelphia, PA, USA
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22
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Abstract
BACKGROUND The apolipoprotein E (APOE) genotype provides information about Alzheimer's disease risk, yet genotype disclosure is discouraged due to concerns about possible distress. This is the first study investigating the psychological and behavioral impacts that genetic susceptibility testing for Alzheimer's disease has in an Asian population. METHODS From March 2016 to November 2017, we ran a prospective cohort study at Duke-National University of Singapore Medical School. 280 healthy Chinese elderly filled in questionnaires that measured psychological symptoms and health behaviors, 1 week before and 6 weeks after APOE genotype disclosure. Responses from ε4-positive subjects (associated with greater Alzheimer's disease risk) were compared to responses from ε4-negative subjects. RESULTS ε4 presence was not significantly associated with anxiety (p = 0.09) or depression (p = 0.25). No associations were found for changes to diet (p = 0.36), dietary supplements consumption (p = 0.90), physical activity (p = 0.15), or cognitive activity (p = 0.18). CONCLUSION There is no evidence to suggest that disclosure of APOE to Asian populations was associated with any short-term adverse psychological or behavioral impacts.
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Roberts JS. Assessing the Psychological Impact of Genetic Susceptibility Testing. Hastings Cent Rep 2019; 49 Suppl 1:S38-S43. [PMID: 31268575 PMCID: PMC7026861 DOI: 10.1002/hast.1015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The expanded use of genetic testing raises key ethical and policy questions about possible benefits and harms for those receiving disease-risk information. As predictive testing for Huntington's was initiated in a clinical setting, survey research posing hypothetical test scenarios suggested that the vast majority of at-risk relatives wanted to know whether they carried a disease-causing mutation. However, only a small minority ultimately availed themselves of this opportunity. Many at-risk individuals concluded that a positive test result would be too psychologically overwhelming. A substantial literature suggests that individuals are often more resilient than anticipated in coping with many different health-related stresses. Much of my own work in the field has been through the Risk Evaluation & Education for Alzheimer's Disease study (REVEAL), a series of randomized clinical trials assessing the impact of genetic susceptibility testing on asymptomatic individuals at risk for Alzheimer's disease. Our experience in developing and implementing four successive, multisite trials provides some potentially useful lessons for the field. More people will be asking for their personal genetic information. Better understanding will help us decide when access is appropriate and how best to disclose results in a manner that supports adjustment to test findings and promotes use of genetic information to improve human health.
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Langbaum JB, Karlawish J, Roberts JS, Wood EM, Bradbury A, High N, Walsh TL, Gordon D, Aggarwal R, Davis P, Stowell C, Trisko L, Langlois CM, Reiman EM, Tariot PN. GeneMatch: A novel recruitment registry using at-home APOE genotyping to enhance referrals to Alzheimer's prevention studies. Alzheimers Dement 2019; 15:515-524. [PMID: 30772251 PMCID: PMC6461487 DOI: 10.1016/j.jalz.2018.12.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 11/16/2018] [Accepted: 12/11/2018] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Recruitment for Alzheimer's disease (AD) prevention research studies is challenging because of lack of awareness among cognitively healthy adults coupled with the high screen fail rate due to participants not having a genetic risk factor or biomarker evidence of the disease. Participant recruitment registries offer one solution for efficiently and effectively identifying, characterizing, and connecting potential eligible volunteers to studies. METHODS Individuals aged 55-75 years who live in the United States and self-report not having a diagnosis of cognitive impairment such as MCI or dementia are eligible to join GeneMatch. Participants enroll online and are provided a cheek swab kit for DNA extraction and apolipoprotein E (APOE) genotyping. Participants are not told their APOE results, although the results may be used in part to help match participants to AD prevention studies. RESULTS As of August 2018, 75,351 participants had joined GeneMatch. Nearly 30% of participants have one APOE4 allele, and approximately 3% have two APOE4 alleles. The percentages of APOE4 heterozygotes and homozygotes are inversely associated with age (P < .001). DISCUSSION GeneMatch, the first trial-independent research enrollment program designed to recruit and refer cognitively healthy adults to AD prevention studies based in part on APOE test results, provides a novel mechanism to accelerate prescreening and enrollment for AD prevention trials.
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Affiliation(s)
| | - Jason Karlawish
- Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, PA, USA
| | - J Scott Roberts
- Department of Health Behavior & Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Elisabeth M Wood
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Angela Bradbury
- Department of Medical Ethics and Health Policy, University of Pennsylvania, Philadelphia, PA, USA; Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nellie High
- Banner Alzheimer's Institute, Phoenix, AZ, USA
| | | | | | | | | | | | | | | | - Eric M Reiman
- Banner Alzheimer's Institute, Phoenix, AZ, USA; Neurodegenerative Disease Research Center, Arizona State University, Tempe, AZ, USA; Department of Psychiatry, University of Arizona, Tucson, AZ, USA; Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA; Arizona Alzheimer's Consortium, Phoenix, AZ, USA
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Bunnik EM, Richard E, Milne R, Schermer MHN. On the personal utility of Alzheimer's disease-related biomarker testing in the research context. JOURNAL OF MEDICAL ETHICS 2018; 44:830-834. [PMID: 30154216 DOI: 10.1136/medethics-2018-104772] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 06/18/2018] [Accepted: 08/04/2018] [Indexed: 05/02/2023]
Abstract
Many healthy volunteers choose to take part in Alzheimer's disease (AD) prevention studies because they want to know whether they will develop dementia-and what they can do to reduce their risk-and are therefore interested in learning the results of AD biomarker tests. Proponents of AD biomarker disclosure often refer to the personal utility of AD biomarkers, claiming that research participants will be able to use AD biomarker information for personal purposes, such as planning ahead or making important life decisions. In this paper, the claim that AD biomarkers have personal utility for asymptomatic individuals is critically assessed. It demonstrates that in the absence of clinical validity, AD biomarkers cannot have personal utility and do not serve research participants' autonomy. Over the next few years, many research groups will be confronted with participants' preferences to learn the results of AD biomarker tests. When researchers choose to make results available upon explicit request, they should ensure adequate information provision and education, notably on the uncertain clinical significance of AD biomarker information. Routine disclosure of AD biomarkers to cognitively unimpaired individuals in research settings cannot be justified with an appeal to the personal utility of AD biomarker information.
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Affiliation(s)
- Eline M Bunnik
- Department of Medical Ethics and Philosophy of Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Edo Richard
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Richard Milne
- Institute of Public Health, University of Cambridge, Cambridge, UK
| | - Maartje H N Schermer
- Department of Medical Ethics and Philosophy of Medicine, Erasmus MC, Rotterdam, The Netherlands
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Gordon EJ, Amόrtegui D, Blancas I, Wicklund C, Friedewald J, Sharp RR. African American Living Donors' Attitudes About APOL1 Genetic Testing: A Mixed Methods Study. Am J Kidney Dis 2018; 72:819-833. [PMID: 30360961 PMCID: PMC6252162 DOI: 10.1053/j.ajkd.2018.07.017] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 07/24/2018] [Indexed: 12/16/2022]
Abstract
RATIONALE & OBJECTIVE African American live kidney donors ("donors") have a greater risk for kidney failure than European American donors. Apolipoprotein L1 gene (APOL1) variants in African Americans may be associated with this disparity. STUDY DESIGN Cross-sectional mixed-methods design. SETTING & PARTICIPANTS African American donors at 1 transplantation center. ANALYTICAL APPROACH Semistructured interviews assessed attitudes about APOL1 genetic testing, willingness to undergo APOL1 testing, hypothetical decisions about donating with 2 APOL1 variants, and demographics. Surveys assessed perceptions of ethnic identity and genetics knowledge. Interview transcriptions were analyzed using thematic analysis. Survey data were analyzed using descriptive statistics. RESULTS 23 donors participated in semistructured interviews. Most (96%) reported that transplantation centers should routinely offer APOL1 genetic testing to all African American potential donors. Most (87%) would have been willing to undergo APOL1 testing before donating. Although study participants noted that APOL1 testing may deter African American potential donors from donating, most (61%) would have donated even if they had 2 high-risk APOL1 variants. Several themes emerged. Study participants believed that APOL1 testing was beneficial for providing information to help donors make informed donation decisions. Participants expressed concern about APOL1 variants placing donors at harm for kidney failure, and therefore valued taking preventive health measures. Participants believed that potential donors would experience psychological distress from learning that they have 2 gene variants and could harm their recipients. Participants were apprehensive about insurance coverage and costs of APOL1 testing and feared that APOL1 genetic test results could discriminate against African Americans. LIMITATIONS Findings may not be generalizable to African American potential donors. CONCLUSIONS Findings suggest that African American donors support APOL1 genetic testing yet fear that APOL1 variants and genetic testing could adversely affect donors' health and ethnic identity. Transplantation centers using APOL1 genetic testing should address African American donors' concerns about APOL1 genetic testing to optimize future donors' informed consent practices.
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Affiliation(s)
- Elisa J Gordon
- Division of Transplantation, Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL; Center for Healthcare Studies, Feinberg School of Medicine, Northwestern University, Chicago, IL; Center for Bioethics and Medical Humanities, Feinberg School of Medicine, Northwestern University, Chicago, IL.
| | - Daniela Amόrtegui
- Center for Healthcare Studies, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Isaac Blancas
- Center for Healthcare Studies, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Catherine Wicklund
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - John Friedewald
- Division of Transplantation, Department of Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL; Division of Internal Medicine, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL
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Poey JL, Burr JA, Roberts JS. Social Connectedness, Perceived Isolation, and Dementia: Does the Social Environment Moderate the Relationship Between Genetic Risk and Cognitive Well-Being? THE GERONTOLOGIST 2018; 57:1031-1040. [PMID: 28329797 DOI: 10.1093/geront/gnw154] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 08/19/2016] [Indexed: 11/14/2022] Open
Abstract
Purpose of the Study This study examined whether the social environment moderates the relationship between the APOE e4 allele and cognitive functioning. Design and Methods The Aging, Demographics, and Memory Study (ADAMS) data and multinomial logistic regression models were used to investigate these relationships for a nationally representative sample of U.S. adults aged 70 and older (n = 779). Results Living alone (relative risk ratio [RRR] = 5.814; p = .000) and self-reported loneliness (RRR = 1.928, p = .049) were associated with a greater risk of cognitive difficulty. Living arrangements, perceived social support, and loneliness were found to moderate the relationship between the APOE e4 allele and cognitive function. Implications The results support the need to consider the social context when examining cognitive well-being in later life. These findings also indicate a need for the development of policies and services that promote a rich social environment.
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Affiliation(s)
- Judith L Poey
- Center on Aging, College of Human Ecology, Kansas State University, Manhattan
| | - Jeffrey A Burr
- Department of Gerontology, McCormack Graduate School of Policy and Global Studies, University of Massachusetts, Boston
| | - J Scott Roberts
- Department of Health Behavior and Health Education, School of Public Health, University of Michigan, Ann Arbor
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Guan Y, Roter DL, Wolff JL, Gitlin LN, Christensen KD, Roberts JS, Green RC, Erby LH. The impact of genetic counselors' use of facilitative strategies on cognitive and emotional processing of genetic risk disclosure for Alzheimer's disease. PATIENT EDUCATION AND COUNSELING 2018; 101:817-823. [PMID: 29203084 PMCID: PMC5911203 DOI: 10.1016/j.pec.2017.11.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/22/2017] [Accepted: 11/27/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To determine the impact of genetic counselor (GC) communication on cognitive and emotional processing of Alzheimer's disease (AD) risk information during discussions with patients with clinical diagnoses of mild cognitive impairment and their companion. METHODS 79 recordings and transcripts of AD risk disclosure sessions collected as part of the fourth REVEAL Trial were coded using the Roter Interaction Analysis System (RIAS) and the Linguistic Inquiry Word Count (LIWC). Multilevel analyses were used to determine the association between GCs' use of communication facilitation strategies and patient and companion use of words indicative of cognitive and emotional processing. RESULTS GC used somewhat more cognitive (14%) than emotional (10%) facilitation strategies. Both patients and companions used more words indicative of cognitive (18% and 17%) than emotional (6% and 5%) processing. GC use of facilitative strategies and patient and companion use of cognitive and emotional processing words were significantly associated in both unadjusted and adjusted models (all p-values<0.01). CONCLUSIONS GCs' use of facilitative strategies assist in cognitive and emotional processing in a way that may be linked to therapeutic benefit. PRACTICE IMPLICATIONS These findings highlight mechanisms through which GCs may assist patients and companions to better understand and cope with risk information.
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Affiliation(s)
- Yue Guan
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Debra L Roter
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Jennifer L Wolff
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Laura N Gitlin
- Department of Community Public Health, School of Nursing, Center for Innovative Care in Aging, Johns Hopkins University, Baltimore, MD, USA
| | - Kurt D Christensen
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - J Scott Roberts
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Robert C Green
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Partners Personalized Medicine, Boston, MA, USA
| | - Lori H Erby
- Social and Behavioral Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
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Best M, Newson AJ, Meiser B, Juraskova I, Goldstein D, Tucker K, Ballinger ML, Hess D, Schlub TE, Biesecker B, Vines R, Vines K, Thomas D, Young MA, Savard J, Jacobs C, Butow P. The PiGeOn project: protocol of a longitudinal study examining psychosocial and ethical issues and outcomes in germline genomic sequencing for cancer. BMC Cancer 2018; 18:454. [PMID: 29685123 PMCID: PMC5914013 DOI: 10.1186/s12885-018-4366-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 04/12/2018] [Indexed: 12/23/2022] Open
Abstract
Background Advances in genomics offer promise for earlier detection or prevention of cancer, by personalisation of medical care tailored to an individual’s genomic risk status. However genome sequencing can generate an unprecedented volume of results for the patient to process with potential implications for their families and reproductive choices. This paper describes a protocol for a study (PiGeOn) that aims to explore how patients and their blood relatives experience germline genomic sequencing, to help guide the appropriate future implementation of genome sequencing into routine clinical practice. Methods We have designed a mixed-methods, prospective, cohort sub-study of a germline genomic sequencing study that targets adults with cancer suggestive of a genetic aetiology. One thousand probands and 2000 of their blood relatives will undergo germline genomic sequencing as part of the parent study in Sydney, Australia between 2016 and 2020. Test results are expected within12–15 months of recruitment. For the PiGeOn sub-study, participants will be invited to complete surveys at baseline, three months and twelve months after baseline using self-administered questionnaires, to assess the experience of long waits for results (despite being informed that results may not be returned) and expectations of receiving them. Subsets of both probands and blood relatives will be purposively sampled and invited to participate in three semi-structured qualitative interviews (at baseline and each follow-up) to triangulate the data. Ethical themes identified in the data will be used to inform critical revisions of normative ethical concepts or frameworks. Discussion This will be one of the first studies internationally to follow the psychosocial impact on probands and their blood relatives who undergo germline genome sequencing, over time. Study results will inform ongoing ethical debates on issues such as informed consent for genomic sequencing, and informing participants and their relatives of specific results. The study will also provide important outcome data concerning the psychological impact of prolonged waiting for germline genomic sequencing. These data are needed to ensure that when germline genomic sequencing is introduced into standard clinical settings, ethical concepts are embedded, and patients and their relatives are adequately prepared and supported during and after the testing process.
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Affiliation(s)
- Megan Best
- Psycho-oncology Co-operative Research Group (PoCoG), Level 6 North, Lifehouse (C39Z), University of Sydney, Sydney, NSW, 2006, Australia. .,Sydney Health Ethics, Sydney School of Public Health, University of Sydney, Sydney, NSW, 2006, Australia.
| | - Ainsley J Newson
- Sydney Health Ethics, Sydney School of Public Health, University of Sydney, Sydney, NSW, 2006, Australia
| | - Bettina Meiser
- Prince of Wales Clinical School, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Ilona Juraskova
- Centre for Medical Psychology and Evidence-based Decision-making, School of Psychology (CeMPED - Psychology), University of Sydney, Sydney, NSW, 2006, Australia
| | - David Goldstein
- Prince of Wales Clinical School, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Kathy Tucker
- Hereditary Cancer Centre, Prince of Wales Hospital, Sydney, NSW, 2052, Australia
| | - Mandy L Ballinger
- Cancer Division, Garvan Institute of Medical Research, 384 Victoria St, Darlinghurst, NSW, 2021, Australia
| | - Dominique Hess
- Cancer Division, Garvan Institute of Medical Research, 384 Victoria St, Darlinghurst, NSW, 2021, Australia
| | - Timothy E Schlub
- Sydney School of Public Health, University of Sydney, Sydney, NSW, 2006, Australia
| | - Barbara Biesecker
- National Human Genome Research, National Institutes of Health, 31 Center Drive, MSC 2073, Bethesda, MD, 20892, USA
| | - Richard Vines
- Rare Cancers, PO Box 440, Bowral, NSW, 2576, Australia
| | - Kate Vines
- Rare Cancers, PO Box 440, Bowral, NSW, 2576, Australia
| | - David Thomas
- Cancer Division, Garvan Institute of Medical Research, 384 Victoria St, Darlinghurst, NSW, 2021, Australia
| | - Mary-Anne Young
- Genome One, Garvan Institute of Medical Research, 384 Victoria St, Darlinghurst, NSW, 2021, Australia
| | - Jacqueline Savard
- Sydney Health Ethics, Sydney School of Public Health, University of Sydney, Sydney, NSW, 2006, Australia
| | - Chris Jacobs
- Prince of Wales Clinical School, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Phyllis Butow
- Psycho-oncology Co-operative Research Group (PoCoG), Level 6 North, Lifehouse (C39Z), University of Sydney, Sydney, NSW, 2006, Australia.,Centre for Medical Psychology and Evidence-based Decision-making, School of Psychology (CeMPED - Psychology), University of Sydney, Sydney, NSW, 2006, Australia
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“Well, good luck with that”: reactions to learning of increased genetic risk for Alzheimer disease. Genet Med 2018. [DOI: 10.1038/gim.2018.13] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Milne R, Bunnik E, Diaz A, Richard E, Badger S, Gove D, Georges J, Fauria K, Molinuevo JL, Wells K, Ritchie C, Brayne C. Perspectives on Communicating Biomarker-Based Assessments of Alzheimer's Disease to Cognitively Healthy Individuals. J Alzheimers Dis 2018; 62:487-498. [PMID: 29480179 PMCID: PMC5836405 DOI: 10.3233/jad-170813] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2017] [Indexed: 12/20/2022]
Abstract
In clinical trials which target pathophysiological mechanisms associated with Alzheimer's disease, research participants who are recruited based on biomarker test results should be informed about their increased risk of developing Alzheimer's dementia. This paper presents the results of a qualitative focus group study of attitudes and concerns toward learning information about biomarker-based risk status among healthy research participants in the United Kingdom and Spain and people with dementia and their supporters/caregivers from countries represented in the European Working Group of People with Dementia of Alzheimer Europe. The study identified expectations related to learning risk status and preferences related to the content, quality, and follow-up of the disclosure process. The latter emphasize distinctions between risk and diagnoses, the importance of clear information about risk, and suggestions for risk reduction, as well as expectations for follow up and support. The implications of these preferences for practice are discussed. Providing details of research participants' experience and views may serve as a guide for the development of processes for the responsible disclosure of Alzheimer's disease biomarkers.
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Affiliation(s)
- Richard Milne
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | - Eline Bunnik
- Department of Medical Ethics and Philosophy of Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | | | - Edo Richard
- Department of Neurology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Shirlene Badger
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge School of Clinical Medicine, Cambridge, UK
| | | | | | - Karine Fauria
- BarcelonaBeta Brain Research Centre, Fundació Pasqual Maragall, Barcelona, Spain
| | - Jose-Luis Molinuevo
- BarcelonaBeta Brain Research Centre, Fundació Pasqual Maragall, Barcelona, Spain
| | - Katie Wells
- Centre of Mental Health, Imperial College London, London, UK
| | - Craig Ritchie
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
| | - Carol Brayne
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge School of Clinical Medicine, Cambridge, UK
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Guan Y, Roter DL, Erby LH, Wolff JL, Gitlin LN, Roberts JS, Green RC, Christensen KD. Communication Predictors of Patient and Companion Satisfaction with Alzheimer's Genetic Risk Disclosure. JOURNAL OF HEALTH COMMUNICATION 2018; 23:807-814. [PMID: 30325721 PMCID: PMC6452435 DOI: 10.1080/10810730.2018.1528319] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The objective of this study was to identify how features of Alzheimer's disease (AD) genetic risk disclosure communication relate to patient and visit companion satisfaction. We conducted secondary analyses of 79 session recordings from the fourth REVEAL Study, a randomized-controlled trial of AD genetic risk disclosure among patients with mild cognitive impairment. Patient and companion satisfaction were ascertained from postdisclosure surveys. The Roter Interaction Analysis System (RIAS) was used to code triadic communication between the counselor, patient, and companion. High satisfaction was evident for 24% of patients (N = 19) and 48% of companions (N = 38). Multivariate logistic regressions showed that high patient satisfaction was associated with patients' expression of emotions (OR = 1.1, 95% CI: 1.0-1.1) and companions' questions about psychosocial and lifestyle topics (OR = 1.8, 95% CI: 1.1-2.8). High companion satisfaction was positively related to the RIAS overall patient-centeredness score for the session (OR = 4.0, 95% CI: 1.0-15.6) (all p-values <0.05). Communication predictors of patient and companion satisfaction reflect specific or summary indicators of patient-centeredness. Findings also suggest that visit companions positively influence patient satisfaction. The study results support the growing literature and policy attention directed toward delivering family-centered care.
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Affiliation(s)
- Yue Guan
- a Behavioral Sciences and Health Education, Rollins School of Public Health , Emory University , Atlanta , GA , USA
| | - Debra L Roter
- b Department of Health, Behavior and Society , Johns Hopkins Bloomberg School of Public Health , Baltimore , MD , USA
| | - Lori H Erby
- c Social and Behavioral Research Branch , National Human Genome Research Institute, National Institutes of Health , Bethesda , Maryland , USA
| | - Jennifer L Wolff
- d Department of Health Policy and Management , Johns Hopkins Bloomberg School of Public Health , Baltimore , MD , USA
| | - Laura N Gitlin
- e Department of Community Public Health, Center for Innovative Care in Aging, School of Nursing , Johns Hopkins University , Baltimore , MD , USA
| | - J Scott Roberts
- f Department of Health Behavior and Health Education , University of Michigan School of Public Health , Ann Arbor , MI , USA
| | - Robert C Green
- g Division of Genetics, Department of Medicine , Brigham and Women's Hospital , Boston , MA , USA
- h Department of Medicine , Harvard Medical School , Boston , MA , USA
- i Broad Institute of MIT and Harvard , Cambridge , MA , USA
- j Partners Personalized Medicine , Boston , MA , USA
| | - Kurt D Christensen
- g Division of Genetics, Department of Medicine , Brigham and Women's Hospital , Boston , MA , USA
- h Department of Medicine , Harvard Medical School , Boston , MA , USA
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A randomized controlled trial of disclosing genetic risk information for Alzheimer disease via telephone. Genet Med 2017; 20:132-141. [PMID: 28726810 PMCID: PMC5897910 DOI: 10.1038/gim.2017.103] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 05/18/2017] [Indexed: 12/20/2022] Open
Abstract
Purpose Telephone disclosure of genetic test results can improve access to services. To date, studies of its impact have focused on return of Mendelian risk information, principally hereditary cancer syndromes. Methods In a multisite trial of Alzheimer’s disease genetic risk disclosure, asymptomatic adults were randomized to receive test results in-person or via telephone. Primary analyses examined patient outcomes 12 months after disclosure. Results Data from 257 participants showed that telephone disclosure occurred 7.4 days sooner and were 30% shorter, on average, than in-person disclosure (both p<0.001). Anxiety and depression scores were well below cutoffs for clinical concern across protocols. Comparing telephone and in-person disclosure protocols, 99% CIs of mean differences were within non-inferiority margins on scales assessing anxiety, depression, and test-related distress, but inconclusive about positive impact. No differences were observed on measures of recall and subjective impact. Sub-analyses supported non-inferiority on all outcomes among APOE ε4-negative participants. Sub-analyses were inconclusive for APOE ε4-positive participants, although mean anxiety and depression scores were still well below cutoffs for clinical concern. Conclusion Telephone disclosure of APOE results and risk for Alzheimer’s disease is generally safe and helps providers meet demands for services, even when results identify an increased risk for disease.
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Viaña JNM, Bittlinger M, Gilbert F. Ethical Considerations for Deep Brain Stimulation Trials in Patients with Early-Onset Alzheimer’s Disease. J Alzheimers Dis 2017; 58:289-301. [DOI: 10.3233/jad-161073] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- John Noel M. Viaña
- University of Tasmania, Hobart, Tasmania, Australia
- Ethics, Policy & Public Engagement (EPPE) Program, Australian Research Council Centre of Excellence for Electromaterials Science, Hobart, Tasmania, Australia
| | | | - Frederic Gilbert
- University of Tasmania, Hobart, Tasmania, Australia
- Ethics, Policy & Public Engagement (EPPE) Program, Australian Research Council Centre of Excellence for Electromaterials Science, Hobart, Tasmania, Australia
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Kaiwar C, McAllister TM, Lazaridis KN, Klee EW. Preemptive sequencing in the genomic medicine era. EXPERT REVIEW OF PRECISION MEDICINE AND DRUG DEVELOPMENT 2017. [DOI: 10.1080/23808993.2017.1322898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Guan Y, Roter DL, Erby LH, Wolff JL, Gitlin LN, Roberts JS, Green RC, Christensen KD. Disclosing genetic risk of Alzheimer's disease to cognitively impaired patients and visit companions: Findings from the REVEAL Study. PATIENT EDUCATION AND COUNSELING 2017; 100:927-935. [PMID: 28012682 PMCID: PMC5400683 DOI: 10.1016/j.pec.2016.12.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 10/20/2016] [Accepted: 12/12/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To describe the impact of genetic information on Alzheimer's disease (AD) risk communication to patients with mild cognitive impairment (MCI) and their visit companions. METHODS Participants of the fourth REVEAL Study trial were randomized to receive AD risk assessments with or without genotype results. We coded 79 audio recorded risk disclosure sessions with the Roter Interaction Analysis System. Multilevel analyses explored differences in communication when disclosed risks were based on age and MCI diagnosis alone or in addition to APOE genotype status. RESULTS The addition of genotype results diminished the patient-centered nature of the sessions (p<0.001). When ε4 positive relative to ε4 negative results were disclosed, visit companions were more verbally active (p<0.05), disclosed more medical information (p<0.05), were more positive verbally and non-verbally (p<0.05) and were more proactive in setting the visit agenda (p<0.05). CONCLUSIONS Delivery of complex genetic risk information reduces the patient-centeredness of disclosure sessions. Visit companions are more actively engaged in session communication when patients are at increased genetic risk for AD. PRACTICE IMPLICATIONS AD risk discussions can be improved by supporting the positive role of visit companions and addressing the challenges inherent in the delivery of complex genetic information in a patient-centered manner.
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Affiliation(s)
- Yue Guan
- Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Debra L Roter
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Lori H Erby
- Social and Behavioral Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jennifer L Wolff
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Laura N Gitlin
- Department of Community-Public Health, Johns Hopkins School of Nursing, Baltimore, MD, USA
| | - J Scott Roberts
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Robert C Green
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Partners Personalized Medicine, Boston, MA, USA
| | - Kurt D Christensen
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
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Qian J, Wolters FJ, Beiser A, Haan M, Ikram MA, Karlawish J, Langbaum JB, Neuhaus JM, Reiman EM, Roberts JS, Seshadri S, Tariot PN, Woods BM, Betensky RA, Blacker D. APOE-related risk of mild cognitive impairment and dementia for prevention trials: An analysis of four cohorts. PLoS Med 2017; 14:e1002254. [PMID: 28323826 PMCID: PMC5360223 DOI: 10.1371/journal.pmed.1002254] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 02/03/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND With the onset of prevention trials for individuals at high risk for Alzheimer disease, there is increasing need for accurate risk prediction to inform study design and enrollment, but available risk estimates are limited. We developed risk estimates for the incidence of mild cognitive impairment (MCI) or dementia among cognitively unimpaired individuals by APOE-e4 dose for the genetic disclosure process of the Alzheimer's Prevention Initiative Generation Study, a prevention trial in cognitively unimpaired APOE-e4/e4 homozygote individuals. METHODS AND FINDINGS We included cognitively unimpaired individuals aged 60-75 y, consistent with Generation Study eligibility criteria, from the National Alzheimer's Coordinating Center (NACC) (n = 5,073, 158 APOE-e4/e4), the Rotterdam Study (n = 6,399, 156 APOE-e4/e4), the Framingham Heart Study (n = 4,078, 67 APOE-e4/e4), and the Sacramento Area Latino Study on Aging (SALSA) (n = 1,294, 11 APOE-e4/e4). We computed stratified cumulative incidence curves by age (60-64, 65-69, 70-75 y) and APOE-e4 dose, adjusting for the competing risk of mortality, and determined risk of MCI and/or dementia by genotype and baseline age. We also used subdistribution hazard regression to model relative hazard based on age, APOE genotype, sex, education, family history of dementia, vascular risk, subjective memory concerns, and baseline cognitive performance. The four cohorts varied considerably in age, education, ethnicity/race, and APOE-e4 allele frequency. Overall, cumulative incidence was uniformly higher in NACC than in the population-based cohorts. Among APOE-e4/e4 individuals, 5-y cumulative incidence was as follows: in the 60-64-y age stratum, it ranged from 0% to 5.88% in the three population-based cohorts versus 23.06% in NACC; in the 65-69-y age stratum, from 9.42% to 10.39% versus 34.62%; and in the 70-75-y age stratum, from 18.64% to 33.33% versus 38.34%. Five-year incidence of dementia was negligible except for APOE-e4/e4 individuals and those over 70 y. Lifetime incidence (to age 80-85 y) of MCI or dementia for the APOE-e4/e4 individuals in the long-term Framingham and Rotterdam cohorts was 34.69%-38.45% at age 60-64 y, 30.76%-40.26% at 65-69 y, and 33.3%-35.17% at 70-75 y. Confidence limits for these estimates are often wide, particularly for APOE-e4/e4 individuals and for the dementia outcome at 5 y. In regression models, APOE-e4 dose and age both consistently increased risk, as did lower education, subjective memory concerns, poorer baseline cognitive performance, and family history of dementia. We discuss several limitations of the study, including the small numbers of APOE-e4/e4 individuals, missing data and differential dropout, limited ethnic and racial diversity, and differences in definitions of exposure and outcome variables. CONCLUSIONS Estimates of the absolute risk of MCI or dementia, particularly over short time intervals, are sensitive to sampling and a variety of methodological factors. Nonetheless, such estimates were fairly consistent across the population-based cohorts, and lower than those from a convenience cohort and those estimated in prior studies-with implications for informed consent and design for clinical trials targeting high-risk individuals.
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Affiliation(s)
- Jing Qian
- Department of Biostatistics and Epidemiology, University of Massachusetts Amherst, Amherst, Massachusetts, United States of America
| | - Frank J. Wolters
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Alexa Beiser
- Department of Neurology, Boston University Medical School, Boston, Massachusetts, United States of America
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, United States of America
| | - Mary Haan
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, United States of America
| | - M. Arfan Ikram
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Jason Karlawish
- Department of Medicine, University of Pennsylvania Medical School, Philadelphia, Pennsylvania, United States of America
| | | | - John M. Neuhaus
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, United States of America
| | - Eric M. Reiman
- Banner Alzheimer’s Institute, Phoenix, Arizona, United States of America
- Department of Psychiatry, University of Arizona College of Medicine, Phoenix, Arizona, United States of America
- Arizona State University–Banner Neurodegenerative Disease Research Center, Tempe, Arizona, United States of America
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, Arizona, United States of America
| | - J. Scott Roberts
- Department of Health Behavior & Health Education, University of Michigan School of Public Health, Ann Arbor, Michigan, United States of America
| | - Sudha Seshadri
- Department of Neurology, Boston University Medical School, Boston, Massachusetts, United States of America
| | - Pierre N. Tariot
- Banner Alzheimer’s Institute, Phoenix, Arizona, United States of America
- Department of Psychiatry, University of Arizona College of Medicine, Phoenix, Arizona, United States of America
| | - Beth McCarty Woods
- Department of Medicine, University of Pennsylvania Medical School, Philadelphia, Pennsylvania, United States of America
| | - Rebecca A. Betensky
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
| | - Deborah Blacker
- Department of Psychiatry, Massachusetts General Hospital/Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
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Lingler JH, Butters MA, Gentry AL, Hu L, Hunsaker AE, Klunk WE, Mattos MK, Parker LS, Roberts JS, Schulz R. Development of a Standardized Approach to Disclosing Amyloid Imaging Research Results in Mild Cognitive Impairment. J Alzheimers Dis 2017; 52:17-24. [PMID: 27060950 DOI: 10.3233/jad-150985] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The increased use of PET amyloid imaging in clinical research has sparked numerous concerns about whether and how to return such research test results to study participants. Chief among these is the question of how best to disclose amyloid imaging research results to individuals who have cognitive symptoms that could impede comprehension of the information conveyed. We systematically developed and evaluated informational materials for use in pre-test counseling and post-test disclosures of amyloid imaging research results in mild cognitive impairment (MCI). Using simulated sessions, persons with MCI and their family care partners (N = 10 dyads) received fictitious but realistic information regarding brain amyloid status, followed by an explanation of how results impact Alzheimer's disease risk. Satisfaction surveys, comprehension assessments, and focus group data were analyzed to evaluate the materials developed. The majority of persons with MCI and their care partners comprehended and were highly satisfied with the information presented. Focus group data reinforced findings of high satisfaction and included 6 recommendations for practice: 1) offer pre-test counseling, 2) use clear graphics, 3) review participants' own brain images during disclosures, 4) offer take-home materials, 5) call participants post-disclosure to address emerging questions, and 6) communicate seamlessly with primary care providers. Further analysis of focus group data revealed that participants understood the limitations of amyloid imaging, but nevertheless viewed the prospect of learning one's amyloid status as valuable and empowering.
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Affiliation(s)
- Jennifer H Lingler
- University of Pittsburgh School of Nursing, Department of Health and Community Systems, Pittsburgh, PA, USA
| | - Meryl A Butters
- University of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA
| | - Amanda L Gentry
- University of Pittsburgh School of Nursing, Department of Health and Community Systems, Pittsburgh, PA, USA
| | - Lu Hu
- University of Pittsburgh School of Nursing, Department of Health and Community Systems, Pittsburgh, PA, USA
| | | | - William E Klunk
- University of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA
| | - Meghan K Mattos
- University of Pittsburgh School of Nursing, Department of Health and Community Systems, Pittsburgh, PA, USA
| | - Lisa S Parker
- University of Pittsburgh School of Public Health, Department of Human Genetics, Pittsburgh, PA, USA
| | - J Scott Roberts
- University of Michigan School of Public Health, Department of Health Behavior & Health Education, Ann Arbor, MI, USA
| | - Richard Schulz
- University of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA.,University Center for Social and Urban Research, Pittsburgh, PA, USA
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Ekstract M, Holtzman GI, Kim KY, Willis SM, Zallen DT. Evaluation of a Web-based decision aid for people considering the APOE genetic test for Alzheimer risk. Genet Med 2016; 19:676-682. [PMID: 27811860 DOI: 10.1038/gim.2016.170] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 09/13/2016] [Indexed: 11/09/2022] Open
Abstract
PURPOSE With the increasing interest in apolipoprotein E (APOE) genetic testing to estimate the risk of developing late-onset Alzheimer disease, new educational tools are needed to help people make the best decision for themselves about whether to undergo this test. This study evaluated an online tool to assist in this decision process. METHODS A prototype decision aid was studied in a two-part survey that collected data from participants before and after they examined the decision aid. Both surveys had multiple-choice options and opportunities for open-ended responses, yielding quantitative and qualitative information. The responses before and after use of the aid were compared for each participant. RESULTS A total of 1,262 individuals completed both surveys. The overall effectiveness of the decision aid was shown by three measures: 94% found the decision aid very helpful or somewhat helpful; general knowledge was increased; and some people changed their minds about APOE genetic testing, with 35% shifting to a higher likelihood of undergoing the test and 20% to a lower likelihood. Suggestions for improvements were noted and incorporated into the online tool. CONCLUSION This decision aid can provide useful educational assistance to many individuals as they consider APOE genetic testing as well as facilitate further discussions with their health-care providers.Genet Med advance online publication 03 November 2016.
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Affiliation(s)
| | - Golde I Holtzman
- Department of Statistics, Virginia Tech, Blacksburg, Virginia, USA
| | - Kye Y Kim
- Carilion Clinic-Center for Healthy Aging and Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
| | - Susan M Willis
- Virginia Tech Center for Survey Research, Blacksburg, Virginia, USA
| | - Doris T Zallen
- Department of Science and Technology in Society, Virginia Tech, Blacksburg, Virginia, USA.,Department of Biomedical Science, Virginia Tech Carilion School of Medicine, Roanoke, Virginia, USA
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Winblad B, Amouyel P, Andrieu S, Ballard C, Brayne C, Brodaty H, Cedazo-Minguez A, Dubois B, Edvardsson D, Feldman H, Fratiglioni L, Frisoni GB, Gauthier S, Georges J, Graff C, Iqbal K, Jessen F, Johansson G, Jönsson L, Kivipelto M, Knapp M, Mangialasche F, Melis R, Nordberg A, Rikkert MO, Qiu C, Sakmar TP, Scheltens P, Schneider LS, Sperling R, Tjernberg LO, Waldemar G, Wimo A, Zetterberg H. Defeating Alzheimer's disease and other dementias: a priority for European science and society. Lancet Neurol 2016; 15:455-532. [DOI: 10.1016/s1474-4422(16)00062-4] [Citation(s) in RCA: 1001] [Impact Index Per Article: 125.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 10/06/2015] [Accepted: 02/09/2016] [Indexed: 12/15/2022]
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Degenhardt EK, Witte MM, Case MG, Yu P, Henley DB, Hochstetler HM, D'Souza DN, Trzepacz PT. Florbetapir F18 PET Amyloid Neuroimaging and Characteristics in Patients With Mild and Moderate Alzheimer Dementia. PSYCHOSOMATICS 2015; 57:208-16. [PMID: 26892326 DOI: 10.1016/j.psym.2015.12.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Revised: 11/30/2015] [Accepted: 12/01/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Clinical diagnosis of Alzheimer disease (AD) is challenging, with a 70.9%-87.3% sensitivity and 44.3%-70.8% specificity, compared with autopsy diagnosis. Florbetapir F18 positron emission tomography (FBP-PET) estimates beta-amyloid plaque density antemortem. METHODS Of 2052 patients (≥55 years old) clinically diagnosed with mild or moderate AD dementia from 2 solanezumab clinical trials, 390 opted to participate in a FBP-PET study addendum. We analyzed baseline prerandomization characteristics. RESULTS A total of 22.4% had negative FBP-PET scans, whereas 72.5% of mild and 86.9% of moderate AD patients had positive results. No baseline clinical variable reliably differentiated negative from positive FBP-PET scan groups. CONCLUSIONS These data confirm the challenges of correctly diagnosing AD without using biomarkers. FBP-PET can aid AD dementia differential diagnosis by detecting amyloid pathology antemortem, even when the diagnosis of AD is made by expert clinicians.
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Affiliation(s)
- Elisabeth K Degenhardt
- IU Health Physicians Group, Department of Psychiatry, Indiana University School of Medicine Collaboration, Indiana University Health, Indianapolis, IN
| | | | - Michael G Case
- Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN
| | - Peng Yu
- Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN
| | - David B Henley
- Lilly USA, LLC, Neurosciences, Indianapolis, IN; Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN
| | | | | | - Paula T Trzepacz
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN
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Participant use and communication of findings from exome sequencing: a mixed-methods study. Genet Med 2015; 18:577-83. [PMID: 26540156 PMCID: PMC4860179 DOI: 10.1038/gim.2015.133] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 08/18/2015] [Indexed: 12/11/2022] Open
Abstract
Purpose This study investigated how genome sequencing results affect health behaviors, affect, and communication. Methods We report on 29 participants who received a sequence result in the ClinSeq® study, a cohort of well-educated, post-reproductive volunteers. A mixed methods design was used to explore respondents’ use, communication, and perceived utility of results. Results Most participants (72%) shared their result with at least one health care provider, and 31% reported changes to their health care. Participants scored high on the Positive Experiences subscale and low on the Distress subscale of a modified version of the Multidimensional Impact of Cancer Risk Assessment (MICRA). The majority (93%) shared their result with at least one family member. Participant’s described deriving personal utility from their results. Conclusions This paper is the first to describe research participants’ reactions to actionable sequencing results. Our findings suggest clinical and personal benefit from receiving sequencing results, both of which may contribute to improved health for the recipients. Given the participants’ largely positive or neutral affective responses and disclosure of their results to physicians and relatives, health care providers should redirect concern from the potential for distress and attend to motivating patients to follow their medical recommendations.
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Krier JB, Green RC. Management of Incidental Findings in Clinical Genomic Sequencing. ACTA ACUST UNITED AC 2015; 87:9.23.1-9.23.16. [PMID: 26439717 DOI: 10.1002/0471142905.hg0923s87] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Genomic sequencing is becoming accurate, fast, and increasingly inexpensive, and is rapidly being incorporated into clinical practice. Incidental or secondary findings, which can occur in large numbers from genomic sequencing, are a potential barrier to the utility of this new technology due to their relatively high prevalence and the lack of evidence or guidelines available to guide their clinical interpretation. This unit reviews the definition, classification, and management of incidental findings from genomic sequencing. The unit focuses on the clinical aspects of handling incidental findings, with an emphasis on the key role of clinical context in defining incidental findings and determining their clinical relevance and utility.
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Affiliation(s)
- Joel B Krier
- Genomes2People Research Program, Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
| | - Robert C Green
- Genomes2People Research Program, Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.,Broad Institute, Boston, Massachusetts
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Witte MM, Foster NL, Fleisher AS, Williams MM, Quaid K, Wasserman M, Hunt G, Roberts JS, Rabinovici GD, Levenson JL, Hake AM, Hunter CA, Van Campen LE, Pontecorvo MJ, Hochstetler HM, Tabas LB, Trzepacz PT. Clinical use of amyloid-positron emission tomography neuroimaging: Practical and bioethical considerations. ALZHEIMER'S & DEMENTIA (AMSTERDAM, NETHERLANDS) 2015; 1:358-67. [PMID: 27239516 PMCID: PMC4878065 DOI: 10.1016/j.dadm.2015.06.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Until recently, estimation of β-amyloid plaque density as a key element for identifying Alzheimer's disease (AD) pathology as the cause of cognitive impairment was only possible at autopsy. Now with amyloid-positron emission tomography (amyloid-PET) neuroimaging, this AD hallmark can be detected antemortem. Practitioners and patients need to better understand potential diagnostic benefits and limitations of amyloid-PET and the complex practical, ethical, and social implications surrounding this new technology. To complement the practical considerations, Eli Lilly and Company sponsored a Bioethics Advisory Board to discuss ethical issues that might arise from clinical use of amyloid-PET neuroimaging with patients being evaluated for causes of cognitive decline. To best address the multifaceted issues associated with amyloid-PET neuroimaging, we recommend this technology be used only by experienced imaging and treating physicians in appropriately selected patients and only in the context of a comprehensive clinical evaluation with adequate explanations before and after the scan.
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Affiliation(s)
- Michael M. Witte
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Norman L. Foster
- Center for Alzheimer's Care, Imaging and Research, Department of Neurology, The Brain Institute, University of Utah, Salt Lake City, UT, USA
| | | | - Monique M. Williams
- IPC The Hospitalist Company, Inc., St. Louis, MO, USA
- VITAS Innovative Hospice, St. Louis, MO, USA
| | - Kimberly Quaid
- Indiana University Center for Bioethics, Indianapolis, IN, USA
| | - Michael Wasserman
- Division of Geriatric Medicine, University of Colorado Denver School of Medicine, Aurora, CO, USA
| | - Gail Hunt
- National Alliance for Caregiving, Bethesda, MD, USA
| | - J. Scott Roberts
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Gil D. Rabinovici
- Memory & Aging Center, Department of Neurology, University of California San Francisco, San Francisco, CA, USA
| | - James L. Levenson
- Department of Psychiatry, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Ann Marie Hake
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
- Indiana University School of Medicine, Indianapolis, IN, USA
| | - Craig A. Hunter
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | | | | | | | - Linda B. Tabas
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
| | - Paula T. Trzepacz
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN, USA
- Indiana University School of Medicine, Indianapolis, IN, USA
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Saykin AJ, Shen L, Yao X, Kim S, Nho K, Risacher SL, Ramanan VK, Foroud TM, Faber KM, Sarwar N, Munsie LM, Hu X, Soares HD, Potkin SG, Thompson PM, Kauwe JSK, Kaddurah-Daouk R, Green RC, Toga AW, Weiner MW. Genetic studies of quantitative MCI and AD phenotypes in ADNI: Progress, opportunities, and plans. Alzheimers Dement 2015; 11:792-814. [PMID: 26194313 PMCID: PMC4510473 DOI: 10.1016/j.jalz.2015.05.009] [Citation(s) in RCA: 202] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 05/08/2015] [Accepted: 05/08/2015] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Genetic data from the Alzheimer's Disease Neuroimaging Initiative (ADNI) have been crucial in advancing the understanding of Alzheimer's disease (AD) pathophysiology. Here, we provide an update on sample collection, scientific progress and opportunities, conceptual issues, and future plans. METHODS Lymphoblastoid cell lines and DNA and RNA samples from blood have been collected and banked, and data and biosamples have been widely disseminated. To date, APOE genotyping, genome-wide association study (GWAS), and whole exome and whole genome sequencing data have been obtained and disseminated. RESULTS ADNI genetic data have been downloaded thousands of times, and >300 publications have resulted, including reports of large-scale GWAS by consortia to which ADNI contributed. Many of the first applications of quantitative endophenotype association studies used ADNI data, including some of the earliest GWAS and pathway-based studies of biospecimen and imaging biomarkers, as well as memory and other clinical/cognitive variables. Other contributions include some of the first whole exome and whole genome sequencing data sets and reports in healthy controls, mild cognitive impairment, and AD. DISCUSSION Numerous genetic susceptibility and protective markers for AD and disease biomarkers have been identified and replicated using ADNI data and have heavily implicated immune, mitochondrial, cell cycle/fate, and other biological processes. Early sequencing studies suggest that rare and structural variants are likely to account for significant additional phenotypic variation. Longitudinal analyses of transcriptomic, proteomic, metabolomic, and epigenomic changes will also further elucidate dynamic processes underlying preclinical and prodromal stages of disease. Integration of this unique collection of multiomics data within a systems biology framework will help to separate truly informative markers of early disease mechanisms and potential novel therapeutic targets from the vast background of less relevant biological processes. Fortunately, a broad swath of the scientific community has accepted this grand challenge.
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Affiliation(s)
- Andrew J Saykin
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA.
| | - Li Shen
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA; Center for Computational Biology and Bioinformatics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Xiaohui Yao
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; School of Informatics and Computing, Indiana University, Purdue University - Indianapolis, Indianapolis, IN, USA
| | - Sungeun Kim
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kwangsik Nho
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Shannon L Risacher
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Vijay K Ramanan
- Center for Neuroimaging, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA; Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Tatiana M Foroud
- Indiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kelley M Faber
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | | | | | - Xiaolan Hu
- Bristol-Myers Squibb, Wallingford, CT, USA
| | | | - Steven G Potkin
- Department of Psychiatry and Human Behavior, University of California - Irvine, Irvine, CA, USA
| | - Paul M Thompson
- Department of Neurology, Keck School of Medicine of USC, University of Southern California, Marina del Rey, CA, USA; Imaging Genetics Center, Keck School of Medicine of USC, University of Southern California, Marina del Rey, CA, USA
| | - John S K Kauwe
- Department of Biology, Brigham Young University, Provo, UT, USA; Department of Neuroscience, Brigham Young University, Provo, UT, USA
| | - Rima Kaddurah-Daouk
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA; Duke Institute for Brain Sciences, Duke University, Durham, NC, USA
| | - Robert C Green
- Partners Center for Personalized Genetic Medicine, Boston, MA, USA; Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Arthur W Toga
- Laboratory of Neuroimaging, Institute for Neuroimaging and Neuroinformatics, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, USA
| | - Michael W Weiner
- Department of Radiology, University of California-San Francisco, San Francisco, CA, USA; Department of Medicine, University of California-San Francisco, San Francisco, CA, USA; Department of Psychiatry, University of California-San Francisco, San Francisco, CA, USA; Center for Imaging of Neurodegenerative Diseases, San Francisco VA Medical Center, San Francisco, CA, USA
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Development of a process to disclose amyloid imaging results to cognitively normal older adult research participants. ALZHEIMERS RESEARCH & THERAPY 2015; 7:26. [PMID: 25969699 PMCID: PMC4428104 DOI: 10.1186/s13195-015-0112-7] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 02/24/2015] [Indexed: 01/23/2023]
Abstract
INTRODUCTION The objective of this study was to develop a process to maximize the safety and effectiveness of disclosing Positron Emission Tomography (PET) amyloid imaging results to cognitively normal older adults participating in Alzheimer's disease secondary prevention studies such as the Anti-Amyloid Treatment in Asymptomatic Alzheimer's Disease (A4) Study. METHODS Using a modified Delphi Method to develop consensus on best practices, we gathered and analyzed data over three rounds from experts in two relevant fields: informed consent for genetic testing or human amyloid imaging. RESULTS Experts reached consensus on (1) text for a brochure that describes amyloid imaging to a person who is considering whether to undergo such imaging in the context of a clinical trial, and (2) a process for amyloid PET result disclosure within such trials. Recommendations included: During consent, potential participants should complete an educational session, where they receive verbal and written information covering what is known and unknown about amyloid imaging, including possible results and their meaning, implications of results for risk of future cognitive decline, and information about Alzheimer's and risk factors. Participants should be screened for anxiety and depression to determine suitability to receive amyloid imaging information. The person conducting the sessions should check comprehension and be skilled in communication and recognizing distress. Imaging should occur on a separate day from consent, and disclosure on a separate day from imaging. Disclosure should occur in person, with time for questions. At disclosure, investigators should assess mood and willingness to receive results, and provide a written results report. Telephone follow-up within a few days should assess the impact of disclosure, and periodic scheduled assessments of depression and anxiety, with additional monitoring and follow-up for participants showing distress, should be performed. CONCLUSIONS We developed a document for use with potential study participants to describe the process of amyloid imaging and the implications of amyloid imaging results; and a disclosure process with attention to ongoing monitoring of both mood and safety to receive this information. This document and process will be used in the A4 Study and can be adapted for other research settings.
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Christensen KD, Roberts JS, Zikmund-Fisher BJ, Kardia SL, McBride CM, Linnenbringer E, Green RC. Associations between self-referral and health behavior responses to genetic risk information. Genome Med 2015; 7:10. [PMID: 25642295 PMCID: PMC4311425 DOI: 10.1186/s13073-014-0124-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 12/11/2014] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Studies examining whether genetic risk information about common, complex diseases can motivate individuals to improve health behaviors and advance planning have shown mixed results. Examining the influence of different study recruitment strategies may help reconcile inconsistencies. METHODS Secondary analyses were conducted on data from the REVEAL study, a series of randomized clinical trials examining the impact of genetic susceptibility testing for Alzheimer's disease (AD). We tested whether self-referred participants (SRPs) were more likely than actively recruited participants (ARPs) to report health behavior and advance planning changes after AD risk and APOE genotype disclosure. RESULTS Of 795 participants with known recruitment status, 546 (69%) were self-referred and 249 (31%) had been actively recruited. SRPs were younger, less likely to identify as African American, had higher household incomes, and were more attentive to AD than ARPs (all P < 0.01). They also dropped out of the study before genetic risk disclosure less frequently (26% versus 41%, P < 0.001). Cohorts did not differ in their likelihood of reporting a change to at least one health behavior 6 weeks and 12 months after genetic risk disclosure, nor in intentions to change at least one behavior in the future. However, interaction effects were observed where ε4-positive SRPs were more likely than ε4-negative SRPs to report changes specifically to mental activities (38% vs 19%, p < 0.001) and diets (21% vs 12%, p = 0.016) six weeks post-disclosure, whereas differences between ε4-positive and ε4-negative ARPs were not evident for mental activities (15% vs 21%, p = 0.413) or diets (8% versus 16%, P = 0.190). Similarly, ε4-positive participants were more likely than ε4-negative participants to report intentions to change long-term care insurance among SRPs (20% vs 5%, p < 0.001), but not ARPs (5% versus 9%, P = 0.365). CONCLUSIONS Individuals who proactively seek AD genetic risk assessment are more likely to undergo testing and use results to inform behavior changes than those who respond to genetic testing offers. These results demonstrate how the behavioral impact of genetic risk information may vary according to the models by which services are provided, and suggest that how participants are recruited into translational genomics research can influence findings. TRIAL REGISTRATION ClinicalTrials.gov NCT00089882 and NCT00462917.
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Affiliation(s)
- Kurt D Christensen
- Division of Genetics, Brigham and Women's Hospital and Harvard Medical School, EC Alumnae Building, Suite 301, 41 Avenue Louis Pasteur, Boston, MA 02115 USA
| | - J Scott Roberts
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI 48109 USA
| | - Brian J Zikmund-Fisher
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI 48109 USA
| | - Sharon Lr Kardia
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI 48109 USA
| | - Colleen M McBride
- Department of Behavioral Sciences and Health Education, Rollins School of Public Health, Atlanta, GA 30322 USA
| | - Erin Linnenbringer
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis, MO 63110 USA
| | - Robert C Green
- Division of Genetics, Brigham and Women's Hospital/Harvard Medical School/Partners Personalized Medicine, Boston, MA 02115 USA
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Besser AG, Sanderson SC, Roberts JS, Chen CA, Christensen KD, Lautenbach DM, Cupples LA, Green RC. Factors affecting recall of different types of personal genetic information about Alzheimer's disease risk: the REVEAL study. Public Health Genomics 2015; 18:78-86. [PMID: 25634646 DOI: 10.1159/000368888] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 10/07/2014] [Indexed: 11/19/2022] Open
Abstract
METHODS Data were obtained through a multisite clinical trial in which different types of genetic risk-related information were disclosed to individuals (n = 246) seeking a risk assessment for Alzheimer's disease. RESULTS Six weeks after disclosure, 83% of participants correctly recalled the number of risk-increasing APOE alleles they possessed, and 74% correctly recalled their APOE genotype. While 84% of participants recalled their lifetime risk estimate to within 5 percentage points, only 51% correctly recalled their lifetime risk estimate exactly. Correct recall of the number of APOE risk-increasing alleles was independently associated with higher education (p < 0.001), greater numeracy (p < 0.05) and stronger family history of Alzheimer's disease (p < 0.05). Before adjustments for confounding, correct recall of APOE genotype was also associated with higher education, greater numeracy and stronger family history of Alzheimer's disease, as well as with higher comfort with numbers and European American ethnicity (all p < 0.05). Correct recall of the lifetime risk estimate was independently associated only with younger age (p < 0.05). CONCLUSIONS Recall of genotype-specific information is high, but recall of exact risk estimates is lower. Incorrect recall of numeric risk may lead to distortions in understanding risk. Further research is needed to determine how best to communicate different types of genetic risk information to patients, particularly to those with lower educational levels and lower numeracy. Health-care professionals should be aware that each type of genetic risk information may be differentially interpreted and retained by patients and that some patient subgroups may have more problems with recall than others.
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Affiliation(s)
- Andria G Besser
- Bonei Olam Center for Rare Jewish Genetic Disorders, Brooklyn, N.Y., USA
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Roberts JS, McLaughlin SJ, Connell CM. Public beliefs and knowledge about risk and protective factors for Alzheimer's disease. Alzheimers Dement 2014; 10:S381-9. [PMID: 24630852 PMCID: PMC4163539 DOI: 10.1016/j.jalz.2013.07.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 05/29/2013] [Accepted: 07/11/2013] [Indexed: 10/25/2022]
Abstract
BACKGROUND The purpose of this study was to assess public beliefs and knowledge about risk and protective factors for Alzheimer's disease (AD). METHODS A brief survey module was added to the Health and Retirement Study, a longstanding national panel study of the U.S. population over the age of 50. RESULTS Respondents were 1641 adults (mean age=64.4 years, 53.6% female, 81.7% White). Most (60.1%) indicated interest in learning their AD risk, with 29.4% expressing active worry. Many failed to recognize that medications to prevent AD are not available (39.1%) or that having an affected first-degree relative is associated with increased disease risk (32%). Many respondents believed that various actions (e.g., mental activity, eating a healthy diet) would be effective in reducing AD risk. CONCLUSION Older and middle-aged adults are interested in their AD risk status and believe that steps can be taken to reduce disease risk. Tailored education efforts are needed to address potential misconceptions about risk and protective factors.
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Affiliation(s)
- J Scott Roberts
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA.
| | - Sara J McLaughlin
- Department of Sociology & Gerontology, Miami University, Oxford, OH, USA
| | - Cathleen M Connell
- Department of Health Behavior and Health Education, University of Michigan School of Public Health, Ann Arbor, MI, USA
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