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Wilke RN, Bednar EM, Pirzadeh-Miller S, Lahiri S, Scarinci IC, Leath Iii CA, Frey MK, Lu KH, Rauh-Hain JA. Cascade genetic testing: an underutilized pathway to equitable cancer care? Fam Cancer 2024; 23:141-145. [PMID: 38748383 DOI: 10.1007/s10689-024-00367-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/14/2024] [Indexed: 06/06/2024]
Abstract
The Precision Medicine Initiative was launched upon the potential of genomic information to tailor medical care. Cascade genetic testing represents a powerful application of precision medicine and involves the process of familial diffusion or the "cascade" of genomic risk information. When an individual (proband) is found to carry a cancer-associated germline pathogenic mutation, the information should be cascaded or shared with at-risk relatives. First degree relatives have a 50% likelihood of carrying the same cancer-associated mutation. This process of cascade testing offers at-risk relatives the opportunity for genetic testing and, for those who also carry the cancer-associated mutation, genetically targeted primary disease prevention through intensive cancer surveillance, chemoprevention and risk-reducing surgery, reducing morbidity and preventing mortality. Cascade testing has been designated by the Centers for Disease Control and Prevention as a Tier 1 genomic application for hereditary breast and ovarian cancer. In this manuscript we describe a cascade genetic testing and in particular focus on its potential to provide necessary care to medically underserved and vulnerable populations.
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Affiliation(s)
- Roni Nitecki Wilke
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Drive, 77030-1362, Houston, TX, USA.
| | - Erica M Bednar
- Cancer Prevention and Control Platform, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sara Pirzadeh-Miller
- Cancer Genetics, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sayoni Lahiri
- Cancer Genetics, The University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Isabel C Scarinci
- Division of Preventive Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Charles A Leath Iii
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Melissa K Frey
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
| | - Karen H Lu
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Drive, 77030-1362, Houston, TX, USA
| | - J Alejandro Rauh-Hain
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, 1155 Herman Pressler Drive, 77030-1362, Houston, TX, USA
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2
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Hodan R, Picus M, Stanclift C, Ormond KE, Pichardo JM, Kurian AW, Ricker C, Idos GE. Family communication of cancer genetic test results in an ethnically diverse population: a qualitative exploration of more than 200 patients. J Community Genet 2024:10.1007/s12687-024-00712-z. [PMID: 38814439 DOI: 10.1007/s12687-024-00712-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 05/18/2024] [Indexed: 05/31/2024] Open
Abstract
Previous research on family communication of cancer genetic test results has primarily focused on non-Hispanic White patients with high-risk pathogenic variants (PV). There are limited data on patient communication of moderate-risk PVs, variants of uncertain significance (VUS), and negative results. This qualitative study examined communication of positive, negative, and VUS hereditary cancer multi-gene panel (MGP) results in an ethnically and socioeconomically diverse population. As part of a multicenter, prospective cohort study of 2000 patients who underwent MGP testing at three hospitals in California, USA, free-text written survey responses to the question: "Feel free to share any thoughts or experiences with discussing genetic test results with others" were collected from participant questionnaires administered at 3 and 12-months post results disclosure. Content and thematic analyses were performed using a theory-driven analysis, Theory of Planned Behavior (TPB), on 256 responses from 214 respondents. Respondents with high perceived utility of sharing genetic test results often reported positive attitudes towards sharing test results and direct encouragement for genetic testing of others. Respondents with high self-efficacy in the sharing process were likely to report high perceived utility of sharing, whereas patients with low self-efficacy more often had VUS results and were more likely to report uncertainty about sharing. Consistent with TPB, our findings suggest that clinician reinforcement of the utility of genetic testing may increase intent for patients to communicate genetic information. Our findings suggest that clinicians should focus on strategies to improve patient understanding of VUS results.
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Affiliation(s)
- Rachel Hodan
- Cancer Genetics and Genomics, Stanford Health Care, Stanford, CA, USA.
- Department of Pediatrics (Genetics), Stanford University School of Medicine, Stanford, CA, USA.
| | - Miles Picus
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Caroline Stanclift
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Kelly E Ormond
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
- Stanford Center for Biomedical Ethics, Stanford University School of Medicine, Stanford, CA, USA
- Health Ethics and Policy Lab, Department of Health Sciences and Technology, (DHEST), ETH-Zurich, Zurich, Switzerland
| | | | - Allison W Kurian
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA, USA
- Department of Oncology, Stanford University School of Medicine, Stanford, CA, USA
| | - Charité Ricker
- University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Los Angeles General Medical Center, Los Angeles, CA, USA
| | - Gregory E Idos
- Division of Gastroenterology, City of Hope, Duarte, CA, USA
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3
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Mesa-Chavez F, Chavarri-Guerra Y, Aguilar-Y-Mendez D, Becerril-Gaitan A, Vaca-Cartagena BF, Carrillo-Bedoya A, Santiesteban-González S, Aranda-Gutierrez A, Rodríguez-Faure A, Obregon-Leal D, Quintero-Beuló G, Rodriguez-Olivares JL, Miaja M, Weitzel JN, Villarreal-Garza C. Uptake of Risk-Reducing Measures, Cascade Testing, and Related Challenges Among Carriers of Breast Cancer-Associated Germline Pathogenic Variants in Mexico. JCO Glob Oncol 2024; 10:e2300417. [PMID: 38635940 DOI: 10.1200/go.23.00417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/22/2023] [Accepted: 02/20/2024] [Indexed: 04/20/2024] Open
Abstract
PURPOSE Genetic cancer risk assessment (GCRA) provides pathogenic variant (PV) carriers with the invaluable opportunity to undertake timely cancer risk-reducing (RR) measures and initiate cascade testing (CT). This study describes the uptake of these strategies and the related barriers among breast cancer-associated germline PV carriers in Mexico. METHODS Carriers who were at least 6 months after disclosure of genetic test results at two GCRA referral centers were invited to answer a survey assessing sociodemographic characteristics, awareness of their carrier status and its implications, uptake of RR measures according to international guidelines by PV, CT initiation, and associated challenges. RESULTS Of the eligible carriers, 246/384 (64%) answered the survey (median age: 44 years). Most were female (88%), married/in domestic partnership (66%), and had personal breast/ovarian cancer history (61%). PVs included BRCA1/2 (75%), CHEK2 (10%), PALB2 (5%), ATM (5%), NF1 (2%), RAD51C (2%), PTEN (1%), and TP53 (1%). Most (87%) participants were aware of their carrier status. When recommended, 37% underwent RR bilateral mastectomy, 48% RR oophorectomy, 70% annual mammogram, and 20% breast magnetic resonance imaging. Challenges hindering the uptake of RR measures included financial limitations (67%), lack of recommendation by their physician (35%), and fear (24%). Nearly all (98%) claimed sharing their results with their relatives. CT was initiated in 63% of families and was associated with carriers being married/in domestic partnership (P = .04) and believing GCRA was useful (P < .001). CONCLUSION Despite the resource-constrained setting, relevant rates of RR measures and CT were observed. Targeted interventions to reduce out-of-pocket expenses and improve patient-physician communication and patients' understanding on carrier status are warranted to enhance the overall benefit of GCRA and ultimately improve the provision of patient-centered care to both carriers and their at-risk relatives.
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Affiliation(s)
- Fernanda Mesa-Chavez
- Tecnologico de Monterrey, School of Medicine and Health Sciences, Monterrey, Mexico
| | - Yanin Chavarri-Guerra
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Dione Aguilar-Y-Mendez
- Breast Cancer Center, Hospital Zambrano Hellion TecSalud, Tecnologico de Monterrey, Monterrey, Mexico
| | - Andrea Becerril-Gaitan
- Breast Cancer Center, Hospital Zambrano Hellion TecSalud, Tecnologico de Monterrey, Monterrey, Mexico
| | - Bryan F Vaca-Cartagena
- Breast Cancer Center, Hospital Zambrano Hellion TecSalud, Tecnologico de Monterrey, Monterrey, Mexico
| | | | | | | | - Andrés Rodríguez-Faure
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Daniela Obregon-Leal
- Breast Cancer Center, Hospital Zambrano Hellion TecSalud, Tecnologico de Monterrey, Monterrey, Mexico
| | | | | | - Melina Miaja
- Breast Cancer Center, Hospital Zambrano Hellion TecSalud, Tecnologico de Monterrey, Monterrey, Mexico
| | - Jeffrey N Weitzel
- The University of Kansas Cancer Center, Kansas City, MO
- Latin American School of Oncology, Sierra Madre, CA
| | - Cynthia Villarreal-Garza
- Breast Cancer Center, Hospital Zambrano Hellion TecSalud, Tecnologico de Monterrey, Monterrey, Mexico
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4
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Tran L, Young JL, Barton CM, Hodan R, Hanson-Kahn A, Chun N. Family health beliefs and cascade genetic testing in Asian families with hereditary cancer risk: "Okay, now what?". J Genet Couns 2024. [PMID: 38504135 DOI: 10.1002/jgc4.1891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/12/2023] [Accepted: 03/12/2024] [Indexed: 03/21/2024]
Abstract
The limited literature on Asian family communication of hereditary cancer risk and cascade genetic testing for pathogenic variants (PVs) in BRCA1 and BRCA2 has reported that Asian patients have selective communication of test results and lower cascade testing rates. To better understand the factors that impact communication and cascade testing in Asian families, we conducted an in-depth qualitative study guided by the Health Belief Model. Participants with heterozygous PVs in ATM, BRCA1, BRCA2, CHEK2, or PALB2, who identified their family's origins to an Asian country, were recruited from the Stanford Cancer Genetics Research Database in October-November 2021. Utilizing a constructivist approach, we conducted sixteen semi-structured interviews around family communication and cascade genetic testing. The research team analyzed the transcript data using a reflexive thematic approach. Extensive discussions between the research team resulted in three primary themes presented in this paper: (1) the role of family health beliefs in cascade genetic testing, (2) changes in communication as a result of genetic testing, and (3) genetics providers' role in supporting family discussions on cascade genetic testing. Certain health beliefs, such as perceived susceptibility to cancer and self-efficacy to take action, were co-created by family members and these shared beliefs influenced decisions about genetic testing, family communication, and family support during the cascade genetic testing process. Participants shared strategies for how genetics providers can prepare Asian patients for more effective conversations with relatives and better address potential testing barriers by tailoring information and providing anticipatory guidance. This study represents an important contribution to the literature about cascade testing among an underrepresented group. Shared family health beliefs about genetic testing may be particularly relevant for this community and these findings can inform strategies to increase cascade genetic testing in Asian families.
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Affiliation(s)
- Leena Tran
- Stanford School of Medicine, Stanford University, Stanford, California, USA
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai, Los Angeles, California, USA
| | - Jennifer L Young
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Claire M Barton
- Stanford School of Medicine, Stanford University, Stanford, California, USA
- Department of Pediatrics, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts, USA
| | - Rachel Hodan
- Cancer Genetics, Stanford Health Care, Palo Alto, California, USA
- Department of Pediatrics (Genetics), Stanford University School of Medicine, Palo Alto, California, USA
| | - Andrea Hanson-Kahn
- Stanford School of Medicine, Stanford University, Stanford, California, USA
- Department of Pediatrics (Genetics), Stanford University School of Medicine, Palo Alto, California, USA
| | - Nicolette Chun
- Cancer Genetics, Stanford Health Care, Palo Alto, California, USA
- Department of Pediatrics (Genetics), Stanford University School of Medicine, Palo Alto, California, USA
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5
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Campacci N, Grasel RS, Galvão HDCR, Garcia LF, Ribeiro PC, Pereira KFDJDS, Goldim JR, Ashton-Prolla P, Palmero EI. The history of families at-risk for hereditary breast and ovarian cancer: what are the impacts of genetic counseling and testing? Front Psychol 2024; 15:1306388. [PMID: 38500651 PMCID: PMC10946339 DOI: 10.3389/fpsyg.2024.1306388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 02/21/2024] [Indexed: 03/20/2024] Open
Abstract
Introduction Cancer Genetic Counseling (CGC) and genetic testing (GT) assume a paramount role for hereditary cancer predisposition syndrome families. We assessed the effects of CGC and GT on women affected by cancer who are at risk for hereditary breast and ovarian cancer predisposition syndrome (HBOC). Methods This study encompasses four time points: before the CGC session, after the CGC session when blood is drawn for GT, after disclosure of GT results, and six months following disclosure of GT results. The impacts of CGC and GT were assessed using psychosocial questionnaires. Additionally, a pedigree, genogram, and ecomap were constructed through a semistructured interview. Results A total of sixty women were included in the study. Most participants considered their perception of cancer risk to be equivalent to that of the general population, even among those with pathogenic variants. An increased perception of breast and ovarian cancer risks was associated with a heightened inclination toward religious engagement as a coping mechanism. Patients carrying variants of uncertain significance expressed greater concerns about developing another cancer compared to those who had BRCA1 and BRCA2 wild type or pathogenic variants. Qualitative analysis of the genograms and ecomaps demonstrated that the CGC/GT processes facilitate communication within families. The genogram analyses revealed the impact of CGC and GT processes on families at risk for hereditary cancer. Changes in some family relationships were observed, and an improvement in communication was noted following the GT process. Discussion These findings can assist healthcare professionals considering a personalized approaches in clinical practice.
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Affiliation(s)
- Natalia Campacci
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Genomic Medicine Service, Hospital A Beneficência Portuguesa de São Paulo, São Paulo, Brazil
| | - Rebeca Silveira Grasel
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Department of Genetics, Brazilian National Cancer Institute, Rio de Janeiro, Brazil
| | | | | | | | | | | | | | - Edenir Inêz Palmero
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Department of Genetics, Brazilian National Cancer Institute, Rio de Janeiro, Brazil
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Bednar EM, Rauh-Hain JA, Garcia JJ, de Aguinaga N, Powell MA, Peral SL, Nitecki R, Jorgensen K, Rudy NL, Lu KH, Leath CA, Scarinci IC. Experiences of Family Communication and Cascade Genetic Testing for Hereditary Cancer in Medically Underserved Populations-A Qualitative Study. Cancer Prev Res (Phila) 2024; 17:19-28. [PMID: 37913800 PMCID: PMC10872900 DOI: 10.1158/1940-6207.capr-23-0303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/22/2023] [Accepted: 10/31/2023] [Indexed: 11/03/2023]
Abstract
We sought to explore the intrafamilial communication and cascade genetic testing (CGT) experiences of patients with hereditary cancer from diverse, medically underserved populations and their relatives. Participants included patients receiving oncology care at an urban, safety net hospital in Texas or comprehensive cancer center in Alabama and their first-degree relatives. In-depth semi-structured qualitative interviews were completed wherein patients shared their experiences with genetic counseling (GC), genetic testing (GT), and communicating their results to relatives. Relatives shared their experiences receiving information from the patient and considering CGT. Interviews were transcribed, coded, and themes were identified. Of 25 participating patients, most recalled key aspects of GC and their GT results. Most (80%) patients shared their results with relatives, but only some relatives underwent CGT; patients reported low perceived susceptibility to hereditary cancer as a common barrier to CGT for their relatives. Of 16 participating relatives, most reported feeling distress upon learning the patient's GT results. Relatives were fearful of learning their own CGT results but identified prevention and early detection as CGT benefits. Interviews identified opportunities during family communication to improve relatives' perceived susceptibility to hereditary cancer. Tailored resources may support patients and relatives experiencing distress and fear during GT. PREVENTION RELEVANCE This study of intrafamilial communication and cascade genetic testing experiences of patients with hereditary cancer and their relatives from diverse, medically underserved populations identified relatives' perceived susceptibility to hereditary cancer risks, distress, and fear as frequent reactions and barriers to testing. These results may inform future hereditary cancer prevention efforts.
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Affiliation(s)
- Erica M. Bednar
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Jose J. Garcia
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Sylvia L. Peral
- The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Roni Nitecki
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | - Natasha L. Rudy
- The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Karen H. Lu
- The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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7
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Ahsan MD, Levi SR, Webster EM, Bergeron H, Lin J, Narayan P, Nelson BB, Li X, Fowlkes RK, Brewer JT, Thomas C, Christos PJ, Chapman-Davis E, Cantillo E, Holcomb K, Sharaf RN, Frey MK. Do people with hereditary cancer syndromes inform their at-risk relatives? A systematic review and meta-analysis. PEC INNOVATION 2023; 2:100138. [PMID: 37214514 PMCID: PMC10194207 DOI: 10.1016/j.pecinn.2023.100138] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/28/2023] [Accepted: 02/14/2023] [Indexed: 05/24/2023]
Abstract
Purpose To evaluate rates of familial disclosure of hereditary cancer syndrome information. Methods A systematic review and meta-analysis was conducted in accordance with PRISMA guidelines (PROSPERO no.: CRD42020134276). Key electronic databases were searched to identify studies evaluating hereditary cancer syndrome cascade relative disclosure. Eligible studies were subjected to meta-analysis. Results Thirty-four studies met inclusion criteria. Among 11,711 included relatives, 70% (95% CI 60 - 78%) were informed of their risk of carrying a cancer-associated pathogenic variant; of 2,875 relatives informed of their risk who were evaluated for uptake of cascade testing, 43% (95% CI 27 - 61%) completed testing. Rates of disclosure were higher among female vs male relatives (79% [95% CI 73% - 84%] vs 67% [95% CI 57% - 75%]) and first-degree vs second-degree relatives (83% [95% CI 77% - 88%] vs 58% [95% CI 45 - 69%]). Conclusion Nearly one-third of at-risk relatives remain uninformed of their risk of carrying a cancer-associated pathogenic variant. Even among those informed, fewer than half subsequently complete genetic testing, representing a critical missed opportunity for precision cancer prevention. Innovation Five studies evaluating interventions to improve disclosure rates were generally ineffective. Urgent work is needed to elucidate barriers to relative disclosure by probands to develop targeted interventions that can optimize proband-mediated cascade genetic testing rates.
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Affiliation(s)
- Muhammad Danyal Ahsan
- Corresponding author at: Division of Gynecologic Oncology, Weill Cornell Medicine, United States of America
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8
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Cragun DL, Hunt PP, Dean M, Weidner A, Shields AK, Tezak A, Pal T. Applying the framework for developing and evaluating complex interventions to increase family communication about hereditary cancer. PEC INNOVATION 2023; 2:100133. [PMID: 37214492 PMCID: PMC10194404 DOI: 10.1016/j.pecinn.2023.100133] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/30/2023] [Accepted: 02/01/2023] [Indexed: 05/24/2023]
Abstract
Objective Evaluate an intervention to increase family communication (FC) of positive hereditary cancer test results using the Framework for Developing and Evaluating Complex Interventions (FDECI). Methods We developed 'programme theory' during the FDECI development phase by aligning intervention components with behavior change techniques (BCTs) and theoretical factors expected to improve FC. During the feasibility phase, we obtained feedback from 12 stakeholder interviews. Results Intervention components aligned with a total of 14 unique BCTs for which prior evidence links the BCT to theoretical factors that influence behavior change. Constructive stakeholder feedback included: more information desired, rewording to support autonomy by highlighting options, and improvements to navigation, visuals, and audio. Positive comments included: comprehensiveness of materials, modeling of conversations, and usefulness of the materials for helping a person prepare to share positive test results. Conclusion The first FDECI phases were helpful for improving the intervention and planning our ongoing effectiveness and future implementation phases. Innovation Our application of the FDECI is novel, including plans to test our 'programme theory' using coincidence analysis (CNA) to determine who accesses which intervention materials, how utilizing certain materials impact the aligned theoretical factors, and whether these in turn make a difference in the behavioral outcome.
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Affiliation(s)
- Deborah L. Cragun
- University of South Florida, College of Public Health, Tampa, FL, United States of America
| | - Paige Phillips Hunt
- University of South Florida, College of Public Health, Tampa, FL, United States of America
| | - Marleah Dean
- University of South Florida, Department of Communication, Tampa, FL; Health Outcomes & Behavior Program, Moffitt Cancer Center, Tampa, FL, United States of America
- Moffitt Cancer Center, Health Outcomes & Behavior Program, Tampa, FL, United States of America
| | - Anne Weidner
- Vanderbilt University Medical Center, Department of Medicine; Vanderbilt-Ingram Cancer Center, Nashville, TN, United States of America
| | - Andrea K. Shields
- University of South Florida, College of Public Health, Tampa, FL, United States of America
| | - Ann Tezak
- Vanderbilt University Medical Center, Department of Medicine; Vanderbilt-Ingram Cancer Center, Nashville, TN, United States of America
| | - Tuya Pal
- Vanderbilt University Medical Center, Department of Medicine; Vanderbilt-Ingram Cancer Center, Nashville, TN, United States of America
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9
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Boumis JK, Dean M. The BRCA1/2 Previvor Information Journey: Understanding What Helps or Hinders. HEALTH COMMUNICATION 2023:1-13. [PMID: 37622341 DOI: 10.1080/10410236.2023.2248677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
BRCA1/2 previvors - individuals who have a genetic mutation that increases their lifetime risk of developing breast or ovarian cancer - have unique information needs. Previvors can experience distress and uncertainty when these needs are not met, which can have negative consequences on their physical and psychological health. Previous research suggests meeting previvors' information needs is one way to combat these potential harmful effects. However, limited past research has examined previvors' perceptions of the helpfulness of information. Therefore, through surveying 101 previvors, this study explored previvors' perceptions of the (un)helpfulness of information, what (lack of) barriers previvors face to finding desired information, and the information sources they utilized. A thematic analysis revealed that previvors generally viewed information as helpful (through empowerment, coping, camaraderie, and action) but not always (evident in information overload). Previvors also reported several barriers (such as "the healthcare system in general", exclusivity, and uncertainty), while others reported a lack of resistance to finding desired information. Additionally, frequencies were calculated to find that various healthcare providers, support groups, and friends and family were common information sources. Taken together, these results offer a psychosocial model for understanding the previvor information journey, displaying how the themes are interconnected and unique for each previvor.
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Affiliation(s)
| | - Marleah Dean
- Department of Communication, University of South Florida
- Health Outcomes and Behavior Program, Moffitt Cancer Center
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10
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Dron HA, Bucio D, Young JL, Tabor HK, Cho MK. Latinx attitudes, barriers, and experiences with genetic counseling and testing: A systematic review. J Genet Couns 2023; 32:166-181. [PMID: 36301246 PMCID: PMC10091969 DOI: 10.1002/jgc4.1632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 08/09/2022] [Accepted: 08/13/2022] [Indexed: 11/05/2022]
Abstract
As genetics is increasingly used across clinical settings, there is a need to understand the impact and experiences of diverse patients. This review systematically examined research literature on Latinx experiences with genetic counseling and genetic testing (GC/GT) in the United States, synthesizing key themes and knowledge gaps pertaining to both patient experience and hypothetical scenarios. Findings were based on a systematic search, inclusion, and thematic analysis of 81 empirical peer-reviewed articles published from January 1990 to July 2019 pertaining to Latinx populations and GC/GT. Studies most commonly addressed Latinas' perspectives on GC/GT in prenatal settings or for hereditary breast and ovarian cancer (HBOC). Costs, referrals, and communication were significant barriers to accessing genetic services for many Latinx patients, particularly those with low English proficiency (LEP). Studies highlighted difficulties accessing and communicating in healthcare settings, and how medical context and prior experience with healthcare workers and institutions influenced GC/GT decision-making. Providers' implicit biases about Latinx patients negatively impacted their care and impeded communication. Despite low awareness of cancer GT, Latinx patients often reported interest in learning more about GC/GT or unmet needs for GT discussion and provider involvement. This systematic review identified areas where providers can take action to improve Latinx experiences with GC/GT. Clinicians should elicit and respond to patient preferences about shared decision-making. For patients with low numeracy or LEP, providers should consider tailored educational and communication techniques. Most studies focused on HBOC and prenatal testing, and Latinx patients are heterogeneous, leaving many research questions about Latinx experience with GT/GC in other clinical areas.
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Affiliation(s)
- Heather A Dron
- Stanford Center for Biomedical Ethics (SCBE), Stanford University, Stanford, California, USA.,University of Michigan, Ann Arbor, Michigan, USA
| | - Daiana Bucio
- Providence St. Joseph Health, Burbank, California, USA
| | - Jennifer L Young
- Stanford Center for Biomedical Ethics (SCBE), Stanford University, Stanford, California, USA.,Center for Genetic Medicine, Northwestern University, Chicago, Illinois, USA
| | - Holly K Tabor
- Stanford Center for Biomedical Ethics (SCBE), Stanford University, Stanford, California, USA.,Departments of Medicine, and by courtesy, Epidemiology, Stanford University, Stanford, California, USA
| | - Mildred K Cho
- Stanford Center for Biomedical Ethics (SCBE), Stanford University, Stanford, California, USA.,Department of Pediatrics, Stanford University, Stanford, California, USA
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11
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Adejumo PO, Aniagwu TIG, Awolude OA, Adedokun B, Kochheiser M, Sowunmi A, Popoola A, Ojengbede O, Huo D, Olopade OI. Cancer Genetic Services in a Low- to Middle-Income Country: Cross-Sectional Survey Assessing Willingness to Undergo and Pay for Germline Genetic Testing. JCO Glob Oncol 2023; 9:e2100140. [PMID: 36854077 PMCID: PMC10166413 DOI: 10.1200/go.21.00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
PURPOSE Cancer genetic testing (CGT), a pathway to personalized medicine, is also being embraced in Nigeria. However, little is known about the influence of demographics and perceptions on individuals' willingness to access and pay for CGT. This study assessed patients' willingness to undergo CGT in southwest Nigeria as a catalyst for sustainable Cancer Risk Management Program. METHODS This was a cross-sectional study using semistructured questionnaire to interview 362 patients with cancer and 10 referred first-degree relatives between July 2018 and February 2020. Participants from three Nigerian teaching hospitals-University College Hospital, Ibadan, Lagos State University Teaching Hospital, Lagos, and Lagos University Teaching Hospital, Lagos, received genetic counseling and had subsequent CGT. Primary outcomes were willingness to undergo CGT in determining cancer risk and the willingness to pay for it. Ethical approval was from appropriate ethics committees of participating hospitals. Data were analyzed with SPSS version 22. Univariate comparison of categorical variables was performed by χ2 test, multivariate analysis by logistic regression. RESULTS The participants from University College Hospital (56.2%), Lagos State University Teaching Hospital (26.3%), and Lagos University Teaching Hospital (17.5%) were mostly female (98.4%). Mean age was 48.8 years ± 11.79. Three hundred twenty-two (86.6%) patients and first-degree relatives were willing to take the test, of whom 231 (71.1%) were willing to pay for it. more than half (53.6%) of the participants were willing to pay between N10,000 and N30,000, which is less than $100 US dollars. Sociodemographic variables and willingness to test showed no association (P > .05). Education and ethnicity were found to be associated with their willingness to pay for CGT (P ≤ .05). CONCLUSION Learning clinically relevant details toward cancer prevention informs health-related decisions in patients and relatives, a motivator for willingness to pay for genetic testing in low- and middle-income countries. Increased awareness may influence outcomes of cancer risk management.
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Affiliation(s)
- Prisca O Adejumo
- Department of Nursing, College of Medicine, University of Ibadan, Nigeria
| | - Toyin I G Aniagwu
- School of Occupational Health Nursing, University College Hospital, Ibadan, Nigeria
| | - Olutosin A Awolude
- Department of Obstetrics and Gynaecology, University College Hospital, Ibadan, Oyo, Nigeria
| | - Babatunde Adedokun
- Center for Clinical Cancer Genetics & Global Health, Department of Medicine, The University of Chicago, Chicago, IL
| | - Makayla Kochheiser
- Center for Clinical Cancer Genetics & Global Health, Department of Medicine, The University of Chicago, Chicago, IL
| | | | | | - Oladosu Ojengbede
- Center for Population and Reproductive Health, College of Medicine, University of Ibadan, Ibadan, Oyo, Nigeria
| | - Dezheng Huo
- Department of Public Health Sciences, The University of Chicago, Chicago, IL
| | - Olufunmilayo I Olopade
- Center for Clinical Cancer Genetics & Global Health, Department of Medicine, The University of Chicago, Chicago, IL
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12
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Nelson B, Faquin W. Cancer-linked genetic testing: The key role of cultural influences: In this second of a two-part series, genetic testing for hereditary cancers is promising more targeted approaches to prevention and intervention, but cultural differences in perceptions of utility, autonomy, and decision-making loom large in determining whether and how such testing is conducted: In this second of a two-part series, genetic testing for hereditary cancers is promising more targeted approaches to prevention and intervention, but cultural differences in perceptions of utility, autonomy, and decision-making loom large in determining whether and how such testing is conducted. Cancer Cytopathol 2023; 131:5-6. [PMID: 36591788 DOI: 10.1002/cncy.22674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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13
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Young AL, Imran A, Spoelma MJ, Williams R, Tucker KM, Halliday J, Forrest LE, Wakefield CE, Butow PN. Proband-mediated interventions to increase disclosure of genetic risk in families with a BRCA or Lynch syndrome condition: a systematic review. Eur J Hum Genet 2023; 31:18-34. [PMID: 36253533 PMCID: PMC9822896 DOI: 10.1038/s41431-022-01200-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 08/19/2022] [Accepted: 09/20/2022] [Indexed: 02/08/2023] Open
Abstract
Interventions to assist family communication about inherited cancer risk have the potential to improve family cancer outcomes. This review aimed to evaluate the efficacy of proband-mediated interventions employed within genetics clinics to increase disclosure of genetic risk to at-risk relatives. MEDLINE, Embase, CINAHL, PubMed and PsycINFO were searched for publications between 1990-2020. The quality of studies was assessed. From 5605 records reviewed, 9 studies (4 randomised control trials and 5 cohort studies) were included involving families with BRCA1, BRCA2 and Lynch syndrome. Intervention delivery modes included genetic counselling with additional telephone or in-person follow-up, letters, videos, and decision aids. The percentages of at-risk relatives informed by the proband about their risk ranged from 54.0% to 95.5% in the intervention or family-mediated comparison group. Of those who were informed, 24.4-60.0% contacted a genetics clinic and 22.8-76.2% had genetic testing after they were counselled at a genetics clinic. Significant differences between intervention and control group were reported on all three outcomes by one study, and with relatives contacting a genetics clinic by another study. The studies suggest but do not conclusively show, that tailored genetic counselling with additional follow-up can increase both the proportion of informed relatives and relatives who contact the genetics clinic. With the increase in germline testing, interventions are required to consider the family communication process and address post-disclosure variables (e.g., relative's perceptions, emotional reactions) through engagement with probands and relatives to maximise the public health benefit of identifying inherited cancer risk in families.
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Affiliation(s)
- Alison Luk Young
- grid.266842.c0000 0000 8831 109XSchool of Medicine and Public Health, The University of Newcastle, Callaghan, NSW Australia
| | - Aalya Imran
- grid.412703.30000 0004 0587 9093Division of Obstetrics and Gynaecology, Royal North Shore Hospital, Sydney, NSW Australia
| | - Michael J. Spoelma
- grid.1005.40000 0004 4902 0432Discipline of Psychiatry and Mental Health, School of Clinical Medicine, University of New South Wales, Sydney, NSW Australia
| | - Rachel Williams
- grid.1005.40000 0004 4902 0432Prince of Wales Clinical School, Faculty of Medicine, University of New South Wales, Randwick, NSW Australia ,grid.415193.bPrince of Wales Hereditary Cancer Centre, Prince of Wales Hospital, Randwick, NSW Australia
| | - Katherine M. Tucker
- grid.1005.40000 0004 4902 0432Prince of Wales Clinical School, Faculty of Medicine, University of New South Wales, Randwick, NSW Australia ,grid.415193.bPrince of Wales Hereditary Cancer Centre, Prince of Wales Hospital, Randwick, NSW Australia
| | - Jane Halliday
- grid.1058.c0000 0000 9442 535XMurdoch Children’s Research Institute, Parkville, VIC Australia ,grid.1008.90000 0001 2179 088XDepartment of Paediatrics, University of Melbourne, Parkville, VIC Australia
| | - Laura E. Forrest
- grid.1055.10000000403978434Parkville Familial Cancer Centre, Peter MacCallum Cancer Centre, Melbourne, VIC Australia ,grid.1008.90000 0001 2179 088XSir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC Australia
| | - Claire E. Wakefield
- grid.1005.40000 0004 4902 0432School of Women’s and Children’s Health, Faculty of Medicine and Health, UNSW, Sydney, NSW Australia ,grid.414009.80000 0001 1282 788XBehavioral Sciences Unit, Kids Cancer Centre, Sydney Children’s Hospital, Randwick, NSW Australia
| | - Phyllis N. Butow
- grid.1013.30000 0004 1936 834XSchool of Psychology, The University of Sydney, Sydney, NSW Australia
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Frey MK, Ahsan MD, Bergeron H, Lin J, Li X, Fowlkes RK, Narayan P, Nitecki R, Rauh-Hain JA, Moss HA, Baltich Nelson B, Thomas C, Christos PJ, Hamilton JG, Chapman-Davis E, Cantillo E, Holcomb K, Kurian AW, Lipkin S, Offit K, Sharaf RN. Cascade Testing for Hereditary Cancer Syndromes: Should We Move Toward Direct Relative Contact? A Systematic Review and Meta-Analysis. J Clin Oncol 2022; 40:4129-4143. [PMID: 35960887 PMCID: PMC9746789 DOI: 10.1200/jco.22.00303] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
PURPOSE Evidence-based guidelines recommend cascade genetic counseling and testing for hereditary cancer syndromes, providing relatives the opportunity for early detection and prevention of cancer. The current standard is for patients to contact and encourage relatives (patient-mediated contact) to undergo counseling and testing. Direct relative contact by the medical team or testing laboratory has shown promise but is complicated by privacy laws and lack of infrastructure. We sought to compare outcomes associated with patient-mediated and direct relative contact for hereditary cancer cascade genetic counseling and testing in the first meta-analysis on this topic. MATERIALS AND METHODS We conducted a systematic review and meta-analysis in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (PROSPERO No.: CRD42020134276). We searched key electronic databases to identify studies evaluating hereditary cancer cascade testing. Eligible trials were subjected to meta-analysis. RESULTS Eighty-seven studies met inclusion criteria. Among relatives included in the meta-analysis, 48% (95% CI, 38 to 58) underwent cascade genetic counseling and 41% (95% CI, 34 to 48) cascade genetic testing. Compared with the patient-mediated approach, direct relative contact resulted in significantly higher uptake of genetic counseling for all relatives (63% [95% CI, 49 to 75] v 35% [95% CI, 24 to 48]) and genetic testing for first-degree relatives (62% [95% CI, 49 to 73] v 40% [95% CI, 32 to 48]). Methods of direct contact included telephone calls, letters, and e-mails; respective rates of genetic testing completion were 61% (95% CI, 51 to 70), 48% (95% CI, 37 to 59), and 48% (95% CI, 45 to 50). CONCLUSION Most relatives at risk for hereditary cancer do not undergo cascade genetic counseling and testing, forgoing potentially life-saving medical interventions. Compared with patient-mediated contact, direct relative contact increased rates of cascade genetic counseling and testing, arguing for a shift in the care delivery paradigm, to be confirmed by randomized controlled trials.
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Affiliation(s)
| | | | | | - Jenny Lin
- Weill Cornell Medicine, New York, NY
| | - Xuan Li
- Weill Cornell Medicine, New York, NY
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Kenneth Offit
- Memorial Sloan Kettering Cancer Center, New York, NY
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15
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Nelson B, Faquin W. Cancer-linked genetic testing: Growing panels and challenges in the United States: In this first of a two-part series, genetic testing is promising more targeted approaches to prevention and intervention for hereditary cancers, but new recommendations are running up against communication challenges and differences even within the United States: In this first of a two-part series, genetic testing is promising more targeted approaches to prevention and intervention for hereditary cancers, but new recommendations are running up against communication challenges and differences even within the United States. Cancer Cytopathol 2022; 130:918-919. [PMID: 36508335 DOI: 10.1002/cncy.22667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Douglas MP, Lin GA, Trosman JR, Phillips KA. Hereditary cancer panel testing challenges and solutions for the latinx community: costs, access, and variants. J Community Genet 2022; 13:75-80. [PMID: 34743282 PMCID: PMC8799811 DOI: 10.1007/s12687-021-00563-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 10/28/2021] [Indexed: 11/29/2022] Open
Abstract
Hereditary breast and ovarian cancers (HBOCs) are common among the Latinx population, and risk testing is recommended using multi-gene hereditary cancer panels (HCPs). However, little is known about how payer reimbursement and out-of-pocket expenses impact provider ordering of HCP in the Latinx population. Our objective is to describe key challenges and possible solutions for HCP testing in the Latinx population. As part of a larger study, we conducted semi-structured interviews with key provider informants (genetic counselors, oncologist, nurse practitioner) from safety-net institutions in the San Francisco Bay Area. We used a deductive thematic analysis approach to summarize themes around challenges and possible solutions to facilitating HCP testing in Latinx patients. We found few financial barriers for HCP testing for the Latinx population due to laboratory patient assistance programs that cover testing at low or no cost to patients. However, we found potential challenges related to the sustainability of low-cost testing and out-of-pocket expenses for patients, access to cascade testing for family members, and pathogenic variants specific to Latinx. Providers questioned whether current laboratory payment programs that decrease barriers to testing are sustainable and suggested solutions for accessing cascade testing and ensuring variants specific to the Latinx population were included in testing. The use of laboratories with payment assistance programs reduces barriers to HCP testing among the US population; however, other barriers are present that may impact testing use in the Latinx population and must be addressed to ensure equitable access to HCP testing for this population.
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Affiliation(s)
- Michael P Douglas
- UCSF Center for Translational and Policy Research On Personalized Medicine (TRANSPERS), Department of Clinical Pharmacy, University of California San Francisco, 490 Illinois Street, 3rd Floor, Box 0613, San Francisco, CA, 94143, USA.
| | - Grace A Lin
- UCSF Center for Translational and Policy Research On Personalized Medicine (TRANSPERS), Department of Clinical Pharmacy, University of California San Francisco, 490 Illinois Street, 3rd Floor, Box 0613, San Francisco, CA, 94143, USA
- Department of Medicine, University of California, San Francisco, CA, USA
- Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, CA, USA
| | - Julia R Trosman
- UCSF Center for Translational and Policy Research On Personalized Medicine (TRANSPERS), Department of Clinical Pharmacy, University of California San Francisco, 490 Illinois Street, 3rd Floor, Box 0613, San Francisco, CA, 94143, USA
- Center for Business Models in Healthcare, Glencoe, IL, USA
| | - Kathryn A Phillips
- UCSF Center for Translational and Policy Research On Personalized Medicine (TRANSPERS), Department of Clinical Pharmacy, University of California San Francisco, 490 Illinois Street, 3rd Floor, Box 0613, San Francisco, CA, 94143, USA
- Philip R. Lee Institute for Health Policy Studies, University of California, San Francisco, CA, USA
- UCSF Helen Diller Family Comprehensive Cancer Center, University of California-San Francisco, San Francisco, CA, USA
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17
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Whitaker KD, Obeid E, Daly MB, Hall MJ. Cascade Genetic Testing for Hereditary Cancer Risk: An Underutilized Tool for Cancer Prevention. JCO Precis Oncol 2022; 5:1387-1396. [PMID: 34994636 DOI: 10.1200/po.21.00163] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Affiliation(s)
- Kristen D Whitaker
- Department of Clinical Genetics, Fox Chase Cancer Center. Philadelphia, PA
| | - Elias Obeid
- Department of Clinical Genetics, Fox Chase Cancer Center. Philadelphia, PA
| | - Mary B Daly
- Department of Clinical Genetics, Fox Chase Cancer Center. Philadelphia, PA
| | - Michael J Hall
- Department of Clinical Genetics, Fox Chase Cancer Center. Philadelphia, PA
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18
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Cragun D, Beckstead J, Farmer M, Hooker G, Dean M, Matloff E, Reid S, Tezak A, Weidner A, Whisenant JG, Pal T. IMProving care After inherited Cancer Testing (IMPACT) study: protocol of a randomized trial evaluating the efficacy of two interventions designed to improve cancer risk management and family communication of genetic test results. BMC Cancer 2021; 21:1099. [PMID: 34645413 PMCID: PMC8513202 DOI: 10.1186/s12885-021-08822-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 10/01/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Implementing genetic testing for inherited cancer predisposition into routine clinical care offers a tremendous opportunity for cancer prevention and early detection. However, genetic testing itself does not improve outcomes; rather, outcomes depend on implemented follow-up care. The IMPACT study is a hybrid type I randomized effectiveness-implementation trial to simultaneously evaluate the effectiveness of two interventions for individuals with inherited cancer predisposition focused on: 1) increasing family communication (FC) of genetic test results; and 2) improving engagement with guideline-based cancer risk management (CRM). METHODS This prospective study will recruit a racially, geographically, and socioeconomically diverse population of individuals with a documented pathogenic/likely pathogenic (P/LP) variant in an inherited cancer gene. Eligible participants will be asked to complete an initial trial survey and randomly assigned to one of three arms: A) GeneSHARE, a website designed to increase FC of genetic test results; B) My Gene Counsel's Living Lab Report, a digital tool designed to improve understanding of genetic test results and next steps, including CRM guidelines; or C) a control arm in which participants continue receiving standard care. Follow-up surveys will be conducted at 1, 3, and 12 months following randomization. These surveys include single-item measures, scales, and indices related to: 1) FC and CRM behaviors and behavioral factors following the COM-B theoretical framework (i.e., capability, opportunity, and motivation); 2) implementation outcomes (i.e., acceptability, appropriateness, exposure, and reach); and 3) other contextual factors (i.e., sociodemographic and clinical factors, and uncertainty, distress, and positive aspects of genetic test results). The primary outcomes are an increase in FC of genetic test results (Arm A) and improved engagement with guideline-based CRM without overtreatment or undertreatment (Arm B) by the 12-month follow-up survey. DISCUSSION Our interventions are designed to shift the paradigm by which individuals with P/LP variants in inherited cancer genes are provided with information to enhance FC of genetic test results and engagement with guideline-based CRM. The information gathered through evaluating the effectiveness and implementation of these real-world approaches is needed to modify and scale up adaptive, stepped interventions that have the potential to maximize FC and CRM. TRIAL REGISTRATION This study is registered at Clinicaltrials.gov (NCT04763915, date registered: February 21, 2021). PROTOCOL VERSION September 17th, 2021 Amendment Number 04.
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Affiliation(s)
- Deborah Cragun
- College of Public Health, University of South Florida, 13201 Bruce B Downs Boulevard, IDRB 304, Tampa, FL, 33612, USA
| | - Jason Beckstead
- College of Public Health, University of South Florida, 13201 Bruce B Downs Boulevard, IDRB 304, Tampa, FL, 33612, USA
| | - Meagan Farmer
- My Gene Counsel, PO Box 612, Branford, CT, 06405, USA
| | - Gillian Hooker
- Vanderbilt University Medical Center, 1500 21st Avenue South, Suite 2810, Nashville, TN, 37212, USA
| | - Marleah Dean
- Department of Communication, University of South Florida, 4202 East Fowler Avenue, CIS 3043, Tampa, FL, 33620, USA
- Moffitt Cancer Center, 12902 USF Magnolia Drive, Tampa, FL, 33612, USA
| | - Ellen Matloff
- My Gene Counsel, PO Box 612, Branford, CT, 06405, USA
| | - Sonya Reid
- Vanderbilt University Medical Center, 1500 21st Avenue South, Suite 2810, Nashville, TN, 37212, USA
| | - Ann Tezak
- Vanderbilt University Medical Center, 1500 21st Avenue South, Suite 2810, Nashville, TN, 37212, USA
| | - Anne Weidner
- Vanderbilt University Medical Center, 1500 21st Avenue South, Suite 2810, Nashville, TN, 37212, USA
| | - Jennifer G Whisenant
- Vanderbilt University Medical Center, 1500 21st Avenue South, Suite 2810, Nashville, TN, 37212, USA
| | - Tuya Pal
- Vanderbilt University Medical Center, 1500 21st Avenue South, Suite 2810, Nashville, TN, 37212, USA.
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19
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Young JL, Mak J, Stanley T, Bass M, Cho MK, Tabor HK. Genetic counseling and testing for Asian Americans: a systematic review. Genet Med 2021; 23:1424-1437. [PMID: 33972720 DOI: 10.1038/s41436-021-01169-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/25/2021] [Accepted: 03/26/2021] [Indexed: 12/30/2022] Open
Abstract
PURPOSE Asian Americans have been understudied in the literature on genetic and genomic services. The current study systematically identified, evaluated, and summarized findings from relevant qualitative and quantitative studies on genetic health care for Asian Americans. METHODS A search of five databases (1990 to 2018) returned 8,522 unique records. After removing duplicates, abstract/title screening, and full text review, 47 studies met inclusion criteria. Data from quantitative studies were converted into "qualitized data" and pooled together with thematic data from qualitative studies to produce a set of integrated findings. RESULTS Synthesis of results revealed that (1) Asian Americans are under-referred but have high uptake for genetic services, (2) linguistic/communication challenges were common and Asian Americans expected more directive genetic counseling, and (3) Asian Americans' family members were involved in testing decisions, but communication of results and risk information to family members was lower than other racial groups. CONCLUSION This study identified multiple barriers to genetic counseling, testing, and care for Asian Americans, as well as gaps in the research literature. By focusing on these barriers and filling these gaps, clinical genetic approaches can be tailored to meet the needs of diverse patient groups, particularly those of Asian descent.
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Affiliation(s)
- Jennifer L Young
- Stanford Center for Biomedical Ethics, Stanford University, CA, USA.
| | - Julie Mak
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, CA, USA
| | - Talia Stanley
- Stanford Center for Biomedical Ethics, Stanford University, CA, USA
| | - Michelle Bass
- Countway Library of Medicine, Harvard Medical School, MA, USA
| | - Mildred K Cho
- Department of Pediatrics, Stanford University, CA, USA
- Department of Medicine, Stanford University, CA, USA
| | - Holly K Tabor
- Department of Medicine, Stanford University, CA, USA
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20
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Fukuzaki N, Kiyozumi Y, Higashigawa S, Horiuchi Y, Mizuguchi M, Matsubayashi H, Nishimura S, Mori K, Notsu A, Suishu I, Ohnami S, Kusuhara M, Yamaguchi K, Doorenbos AZ, Takeda Y. Sharing genetic test results of germline pathogenic variants of hereditary cancer with relatives: A single-center cross-sectional study. Jpn J Clin Oncol 2021; 51:1547-1553. [PMID: 34244736 PMCID: PMC8491536 DOI: 10.1093/jjco/hyab110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/23/2021] [Indexed: 12/03/2022] Open
Abstract
Objective This study aimed to determine whether Japanese cancer patients share test results of germline pathogenic variants of hereditary cancer with their relatives. Methods This single-center cross-sectional study enrolled 21 Japanese patients who received results of germline pathogenic variants of hereditary cancer at least 6 months prior. Results All patients shared their test results with at least one relative, with the following sharing rates: 85.7% for first-degree relatives, 10% for second-degree relatives and 8.3% for third-degree relatives. Patients most commonly shared the information with their children aged >18 years (86.7%), followed by their siblings (73.6%), spouses (64.7%) and parents (54.5%). Three categories were extracted from qualitative analysis: ‘characteristics of my cancer’, ‘knowledge and caution about inheritability’ and ‘utilization of medical care.’ Conclusions The rate of test result sharing with first-degree relatives was comparable with those in Europe and the USA. Patients with germline pathogenic variants also tended to share their test results more with their children and siblings than with their parents. Informing their relatives of the results was suggestive of the motivation to influence their relatives’ health outcome and contribute to the well-being of their children and siblings.
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Affiliation(s)
- Naomi Fukuzaki
- Department of Nursing, Shizuoka Cancer Center Hospital, Shizuoka, Japan.,Graduate School of Health Management, Keio University, Tokyo, Japan
| | - Yoshimi Kiyozumi
- Division of Genetic Medicine Promotion, Shizuoka Cancer Center, Shizuoka, Japan
| | | | - Yasue Horiuchi
- Division of Genetic Medicine Promotion, Shizuoka Cancer Center, Shizuoka, Japan.,Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Maki Mizuguchi
- Division of Genetic Medicine Promotion, Shizuoka Cancer Center, Shizuoka, Japan
| | - Hiroyuki Matsubayashi
- Division of Genetic Medicine Promotion, Shizuoka Cancer Center, Shizuoka, Japan.,Division of Endoscopy, Shizuoka Cancer Center, Shizuoka, Japan
| | - Seiichiro Nishimura
- Division of Genetic Medicine Promotion, Shizuoka Cancer Center, Shizuoka, Japan.,Division of Breast Surgery, Shizuoka Cancer Center Hospital, Shizuoka, Japan
| | - Keita Mori
- Clinical Research Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - Akifumi Notsu
- Clinical Research Center, Shizuoka Cancer Center, Shizuoka, Japan
| | - Izumi Suishu
- Department of Nursing, Shizuoka Cancer Center Hospital, Shizuoka, Japan
| | - Sumiko Ohnami
- Shizuoka Cancer Center Research Institute, Shizuoka, Japan
| | | | | | - Ardith Z Doorenbos
- Department of Biobehavioral Nursing Science, College of Nursing, University of Illinois Chicago, Chicago, USA
| | - Yuko Takeda
- Graduate School of Health Management, Keio University, Tokyo, Japan
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21
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Lee DSC, Meiser B, Mariapun S, Hassan T, Yip CH, Mohd Taib NA, Teo SH, Thong MK, Yoon SY. Communication about positive BRCA1 and BRCA2 genetic test results and uptake of testing in relatives in a diverse Asian setting. J Genet Couns 2021; 30:720-729. [PMID: 33245177 DOI: 10.1002/jgc4.1360] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 10/18/2020] [Accepted: 10/20/2020] [Indexed: 11/05/2022]
Abstract
The vast majority of studies assessing communication of BRCA1/2 results with relatives and family uptake of BRCA1/2 testing have been conducted in Western societies, and a dearth of studies have been conducted in Asia among relatives of diverse carriers of pathogenic BRCA1/2 germline variants. This study aimed to present rates of BRCA1/2 result disclosure by probands and probands' motivators and barriers of family communication and predictive testing uptake among eligible relatives. It also examined patterns of disclosure and testing uptake among different types of relatives. Eighty-seven carriers with either breast or ovarian cancer, who had previously been found to be carriers of a pathogenic variant in BRCA1/2, were interviewed over the phone using a semi-structured interview guide. Fifty-six percent of patients were Chinese, 21% were Indian, and 23% were Malay. It was found that 62.0% of eligible first- and second-degree relatives were informed by the proband about the testing result and that 11.5% of eligible first- and second-degree relatives had genetic testing. First-degree relatives were more likely to have been informed and tested compared to second-degree relatives, as were sisters compared to brothers. The low rates of family communication and testing uptake documented in this study suggest that interventions should focus on encouraging probands to inform male and second-degree relatives and targeting such relatives to increase informed decisions and accessibility to testing. Promotion strategies should be culturally sensitive to optimize outcomes.
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Affiliation(s)
| | - Bettina Meiser
- Psychosocial Research Group, Prince of Wales Clinical School, University of New South Wales, Sydney, NSW, Australia
| | | | | | | | - Nur A Mohd Taib
- Department of Surgery, Faculty of Medicine, University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | | | - Meow-Keong Thong
- Faculty of Medicine, Department of Paediatrics, Genetic Medicine Unit, University Malaya Medical Centre, Kuala Lumpur, Malaysia
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22
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Dean M, Tezak AL, Johnson S, Pierce JK, Weidner A, Clouse K, Pal T, Cragun D. Sharing genetic test results with family members of BRCA, PALB2, CHEK2, and ATM carriers. PATIENT EDUCATION AND COUNSELING 2021; 104:720-725. [PMID: 33455826 PMCID: PMC8005459 DOI: 10.1016/j.pec.2020.12.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 12/05/2020] [Accepted: 12/22/2020] [Indexed: 05/29/2023]
Abstract
OBJECTIVE This study explored motivators and challenges/barriers to sharing personal genetic test results (GTR) with family members (FM). METHODS Semi-structured, in-depth interviews were conducted with 62 women who had a pathogenic or likely pathogenic (P/LP) variant in aBRCA, PALB2, CHEK2, or ATM gene. Selective qualitative data analysis focused on eliciting motivators and challenges/barriers identified by participants when sharing their GTR with FM. RESULTS Motivators to sharing personal GTR with FM included: health protection and prevention; moral obligation; decisional empowerment; familial ties; written resources; and contextualization for a familial cause for cancer. Challenges/barriers to family sharing included: concern for FM reactions; complexities of information; lack of closeness; perceived relevance; and emotional impact. CONCLUSIONS All motivators and challenges/barriers were identified across BRCA and non-BRCA carriers, demonstrating commonalities in family sharing of GTR among high- to moderate-penetrance hereditary BC (breast cancer) genes. Despite challenges/barriers, participants disclosed their GTR with most close FM, yet restrictions in communication and/or strain on the timing, manner of disclosing, and strategies used varied across certain FM. PRACTICE IMPLICATIONS These findings offer healthcare providers and researchers preliminary practical implications for broadly improving family sharing interventions across P/LP variants in BC risk genes by demonstrating important elements to include in family sharing letters.
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Affiliation(s)
- Marleah Dean
- Department of Communication, University of South Florida, Tampa, FL, USA.
| | - Ann L Tezak
- Vanderbilt-Ingram Cancer Center in the Department of Medicine, Division of Genetic Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Sabrina Johnson
- Department of Communication, University of South Florida, Tampa, FL, USA
| | - Joy K Pierce
- Cleveland Clinic, Indian River Hospital, Vero Beach, FL, USA
| | - Anne Weidner
- Vanderbilt-Ingram Cancer Center in the Department of Medicine, Division of Genetic Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kate Clouse
- Department of Nursing, Vanderbilt University, Nashville, TN, USA
| | - Tuya Pal
- Vanderbilt-Ingram Cancer Center in the Department of Medicine, Division of Genetic Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Deborah Cragun
- College of Public Health, University of South Florida, Tampa, FL, USA
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Armstrong N, Quek RGW, Ryder S, Ross J, Buksnys T, Forbes C, Fox KM, Castro E. DNA damage repair gene mutation testing and genetic counseling in men with/without prostate cancer: a systematic review. Future Oncol 2021; 17:853-864. [DOI: 10.2217/fon-2020-0569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: Ongoing clinical trials are investigating PARP inhibitors to target the DNA damage repair (DDR) pathway in prostate cancer. DDR mutation screening will guide treatment strategy and assess eligibility for clinical trials. Materials & methods: This systematic review estimated the rate of DDR mutation testing or genetic counseling among men with or at risk of prostate cancer. Results: From 6856 records, one study fulfilled the inclusion criteria and described men undiagnosed with prostate cancer with a family history of BRCA1/2 mutation who received DDR mutation testing. Conclusion: With only one study included in this first systematic review of DDR mutation testing or genetic counseling in men with or at risk of prostate cancer, more research is warranted.
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Affiliation(s)
| | | | | | | | | | | | - Kathleen M Fox
- Strategic Healthcare Solutions, LLC, Aiken, SC 29803, USA
| | - Elena Castro
- Hospital Universitario Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA), Spain
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24
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Ginsburg O, Ashton-Prolla P, Cantor A, Mariosa D, Brennan P. The role of genomics in global cancer prevention. Nat Rev Clin Oncol 2021; 18:116-128. [PMID: 32973296 DOI: 10.1038/s41571-020-0428-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2020] [Indexed: 02/07/2023]
Abstract
Despite improvements in the understanding of cancer causation, much remains unknown regarding the mechanisms by which genomic and non-genomic factors initiate carcinogenesis, drive cell invasion and metastasis, and enable cancer to develop. Technological advances have enabled the analysis of whole genomes, comprising thousands of tumours across populations worldwide, with the aim of identifying mutation signatures associated with particular tumour types. Large collaborative efforts have resulted in the identification and improved understanding of causal factors, and have shed light on new opportunities to prevent cancer. In this new era in cancer genomics, discoveries from studies conducted on an international scale can inform evidence-based strategies in cancer control along the cancer care continuum, from prevention to treatment. In this Review, we present the relevant history and emerging frontiers of cancer genetics and genomics from the perspective of global cancer prevention. We highlight the importance of local context in the adoption of new technologies and emergent evidence, with illustrative examples from worldwide. We emphasize the challenges in implementing important genomic findings in clinical settings with disparate resource availability and present a conceptual framework for the translation of such findings into clinical practice, and evidence-based policies in order to maximize the utility for a population.
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Affiliation(s)
- Ophira Ginsburg
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA.
- Section for Global Health, Division of Health and Behavior, Department of Population Health, NYU Grossman School of Medicine, New York, NY, USA.
| | - Patricia Ashton-Prolla
- Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre and Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Anna Cantor
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | | | - Paul Brennan
- International Agency for Research on Cancer, Lyon, France
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25
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Vuković P, Peccatori FA, Massarotti C, Miralles MS, Beketić-Orešković L, Lambertini M. Preimplantation genetic testing for carriers of BRCA1/2 pathogenic variants. Crit Rev Oncol Hematol 2020; 157:103201. [PMID: 33333149 DOI: 10.1016/j.critrevonc.2020.103201] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 12/12/2022] Open
Abstract
The detection of germline BRCA1/2 pathogenic variant has relevant implications for the patients and their family members. Family planning, prophylactic surgery and the possibility of preimplantation genetic testing for monogenic disorders (PGT-M) to avoid transmittance of pathogenic variants to the offspring are relevant topics in this setting. PGT-M is valuable option for BRCA carriers, but it remains a controversial and underdiscussed topic. Although the advances in PGT technologies have improved pregnancy rate, there are still several important challenges associated with its use. The purpose of this review is to report the current evidence on PGT-M for BRCA1/2 carriers, ethical concerns and controversy associated with its use, reproductive implications of BRCA pathogenic variants, underlying areas in which an educational effort would be beneficial as well as possibilities for future research efforts in the field.
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Affiliation(s)
- Petra Vuković
- Division of Radiotherapy and Medical Oncology, University Hospital for Tumors, University Hospital Center Sestre Milosrdnice, Zagreb, 10000, Croatia.
| | - Fedro Alessandro Peccatori
- Fertility and Procreation Unit, Gynecologic Oncology Program, IEO European Institute of Oncology IRCCS, Milan, 20125, Italy.
| | - Claudia Massarotti
- Physiopathology of Human Reproduction Unit, IRCCS Ospedale Policlinico San Martino, Genova, 16132, Italy.
| | | | - Lidija Beketić-Orešković
- Division of Radiotherapy and Medical Oncology, University Hospital for Tumors, University Hospital Center Sestre Milosrdnice, Zagreb, 10000, Croatia; Department of Clinical Oncology, School of Medicine, University of Zagreb, Zagreb, 10000, Croatia.
| | - Matteo Lambertini
- Department of Medical Oncology, U.O.C. Clinica di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genova, 16132, Italy; Department of Internal Medicine and Medical Specialties (DiMI), School of Medicine, University of Genova, Genova, 16126, Italy.
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26
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Cragun D, Weidner A, Tezak A, Clouse K, Pal T. Family communication of genetic test results among women with inherited breast cancer genes. J Genet Couns 2020; 30:701-709. [PMID: 33174380 DOI: 10.1002/jgc4.1356] [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] [Received: 03/28/2019] [Revised: 09/01/2020] [Accepted: 10/07/2020] [Indexed: 01/12/2023]
Abstract
Identification of inherited breast cancer may guide care. These benefits can be amplified through communication of genetic test results with at-risk family members and subsequent family testing (FT). Females with a pathogenic/likely pathogenic (P/LP) variant in BRCA1/2, PALB2, CHEK2, and/or ATM were surveyed about family communication (FC) of genetic test results and FT. Comparisons were made across genes. The 235 participants with P/LP variants (186 BRCA1/2, 28 PALB2, 15 CHEK2, and 6 ATM) had a median age of 54 and most were non-Hispanic whites (89%) with a prior breast cancer diagnosis (61%). When controlling for other variables, FC was higher among younger participants (p<.0001), those with high FC self-efficacy (p=.019), and those with P/LP variants in BRCA1/2 compared to PALB2 (p =.040) and ATM/CHEK2 (p =.032). Higher rates of FC and FT were also observed among female relatives and relatives of closer kinship. Overall 94% of participants would find one or more resources helpful with FC and 70% reported using FC resources when telling family members about their genetic test result. The three most commonly used resources included the following: (a) a family sharing letter (38%); (b) printed materials (30%); and (c) web-based information (23%). Among the 86% who spoke with a genetic counselor (GC), 93% were given at least one FC resource and the three most common resources GCs provided to participants overlapped with the resources participants would find helpful and those that were used. Our results suggest lower FC and FT rates among women with P/LP variants in genes other than BRCA1/2, the reasons for which should be evaluated in future studies. As more data to refine cancer risks and management are generated across these other inherited breast cancer genes, strategies to improve FC and FT are needed to amplify the benefits of genetic testing.
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Affiliation(s)
- Deborah Cragun
- College of Public Health, University of South Florida, Tampa, FL, USA
| | - Anne Weidner
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ann Tezak
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Kate Clouse
- Vanderbilt Institute for Global Health, Vanderbilt University School of Nursing, Nashville, TN, USA
| | - Tuya Pal
- Division of Genetic Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
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27
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Kassem N, Stout LA, Hunter C, Schneider B, Radovich M. Precision Prevention: The Current State and Future of Genomically Guided Cancer Prevention. JCO Precis Oncol 2020; 4:96-108. [PMID: 35050732 DOI: 10.1200/po.19.00278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The identification of cancer-predisposing germline variants has potentially substantial clinical impact for patients and their families. Although management guidelines have been proposed for some genes, guidelines for other genes are lacking. This review focuses on the current surveillance and management guidelines for the most common hereditary cancer syndromes and discusses some of the most pivotal studies supporting the available guidelines. We also highlight the gaps in the identification of germline carriers, the cascade testing of at-risk relatives, and the challenges impeding the proper follow-up and optimal management of pathogenic germline carriers. The anticipated surge in the number of identified germline carriers, deficient management guidelines, poor cascade testing uptake, and long-term follow-up necessitate the development of multidisciplinary clinics as an obligatory step toward the improvement of cancer prevention.
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Affiliation(s)
- Nawal Kassem
- Indiana University School of Medicine, Indianapolis, IN.,Indiana University Health Precision Genomics, Indianapolis, IN
| | - Leigh Anne Stout
- Indiana University School of Medicine, Indianapolis, IN.,Indiana University Health Precision Genomics, Indianapolis, IN
| | - Cynthia Hunter
- Indiana University School of Medicine, Indianapolis, IN.,Indiana University Health Precision Genomics, Indianapolis, IN
| | - Bryan Schneider
- Indiana University School of Medicine, Indianapolis, IN.,Indiana University Health Precision Genomics, Indianapolis, IN
| | - Milan Radovich
- Indiana University School of Medicine, Indianapolis, IN.,Indiana University Health Precision Genomics, Indianapolis, IN
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28
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Caswell-Jin JL, Zimmer AD, Stedden W, Kingham KE, Zhou AY, Kurian AW. Cascade Genetic Testing of Relatives for Hereditary Cancer Risk: Results of an Online Initiative. J Natl Cancer Inst 2020; 111:95-98. [PMID: 30239769 PMCID: PMC6335111 DOI: 10.1093/jnci/djy147] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/24/2018] [Indexed: 02/03/2023] Open
Abstract
In cascade testing, genetic testing for an identified familial pathogenic variant extends to disease-free relatives to allow genetically targeted disease prevention. We evaluated the results of an online initiative in which carriers of 1 of 30 cancer-associated genes, or their first-degree relatives, could offer low-cost testing to at-risk first-degree relatives. In the first year, 1101 applicants invited 2280 first-degree relatives to undergo genetic testing. Of invited relatives, 47.5% (95% confidence interval [CI] = 45.5 to 49.6%) underwent genetic testing, and 12.0% (95% CI = 9.2 to 14.8%) who tested positive continued the cascade by inviting additional relatives to test. Of tested relatives, 4.9% (95% CI = 3.8 to 6.1%) had a pathogenic variant in a different gene from the known familial one, and 16.8% (95% CI = 14.7 to 18.8%) had a variant of uncertain significance. These results suggest that an online, low-cost program is an effective approach to implementing cascade testing, and that up to 5% of the general population may carry a pathogenic variant in 1 of 30 cancer-associated genes.
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Affiliation(s)
| | - Anjali D Zimmer
- Department of Medicine, Stanford University School of Medicine, Stanford, CA.,Department of Scientific Affairs, Color Genomics, Burlingame, CA
| | - Will Stedden
- Department of Data Science, Color Genomics, Burlingame, CA
| | - Kerry E Kingham
- Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Alicia Y Zhou
- Department of Scientific Affairs, Color Genomics, Burlingame, CA
| | - Allison W Kurian
- Department of Medicine, Stanford University School of Medicine, Stanford, CA.,Department of Health Research & Policy, Stanford University School of Medicine, Stanford, CA
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29
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Southwick SV, Esch R, Gasser R, Cragun D, Redlinger-Grosse K, Marsalis S, Zierhut HA. Racial and ethnic differences in genetic counseling experiences and outcomes in the United States: A systematic review. J Genet Couns 2020; 29:147-165. [PMID: 32144851 DOI: 10.1002/jgc4.1230] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 12/12/2022]
Abstract
As genetic counseling services expand and reach a wider catchment of the population, there is a critical need to better understand the impact of services on a greater diversity of patients. We conducted a systematic review to evaluate genetic counseling experiences and outcomes among racial and ethnic minorities. Six databases extracted articles published from 2005 to 2019 that assessed genetic counseling participation, knowledge and awareness, motivators, barriers, perceptions, and outcomes for racial and ethnic minority populations in the United States. Genetic counseling outcomes were categorized using the Framework for Outcomes of Clinical commUnication Services. A total of 1,227 abstracts were identified, of which 23 papers met inclusion criteria. Results suggest the possibility of racial and ethnic differences in some genetic counseling experiences and outcomes but noted differences were not adequately replicated between studies. The few included studies differed greatly in aims, methods, and results, which made comparison across study designs challenging and effectively barred thematic analysis. Additional research is needed that includes more study populations and settings with patients of diverse racial and ethnic backgrounds, as well as more structured study designs that allow for elucidations of differences between White and non-White populations.
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Affiliation(s)
- Sabrina V Southwick
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN, USA
| | - Riley Esch
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, MN, USA
| | - Rachel Gasser
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Deborah Cragun
- College of Public Health, University of South Florida, Tampa, FL, USA
| | - Krista Redlinger-Grosse
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN, USA
| | | | - Heather A Zierhut
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, MN, USA
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30
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Hamilton JG, Robson ME. Psychosocial Effects of Multigene Panel Testing in the Context of Cancer Genomics. Hastings Cent Rep 2019; 49 Suppl 1:S44-S52. [PMID: 31268573 PMCID: PMC7430497 DOI: 10.1002/hast.1016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In recent years, with both the development of next-generation sequencing approaches and the Supreme Court decision invalidating gene patents, declining costs have contributed to the emergence of a new model of hereditary cancer genetic testing. Multigene panel testing (or multiplex testing) involves using next-generation sequencing technology to determine the sequence of multiple cancer-susceptibility genes. In addition to high-penetrance cancer-susceptibility genes, multigene panels frequently include genes that are less robustly associated with cancer predisposition. Scientific understanding about associations between many specific moderate-penetrance gene variants and cancer risks is incomplete. The emergence of multigene panel tests has created unique challenges that may have meaningful psychosocial implications. Contrasted with the serial testing process, wherein patients consider the personal and clinical implications of each evaluated gene, with multigene panel testing, patients provide broad consent to whichever genes are included in a particular panel and then, after the test, receive in-depth genetic counseling to clarify the distinct implications of their specific results. Consequently, patients undergoing multigene panel testing may have a less nuanced understanding of the test and its implications, and they may have fewer opportunities to self-select against the receipt of particular types of genetic-risk information. Evidence is conflicting regarding the emotional effects of this testing.
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Affiliation(s)
- Jada G. Hamilton
- Department of Psychiatry & Behavioral Sciences, Memorial Sloan Kettering Cancer Center
- Department of Medicine, Memorial Sloan Kettering Cancer Center
- Weill Cornell Medical College
| | - Mark E. Robson
- Department of Medicine, Memorial Sloan Kettering Cancer Center
- Weill Cornell Medical College
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31
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Graves KD, Hall MJ, Tercyak KP. Introduction to the Special Issue on Clinical and Public Health Genomics: Opportunities for translational behavioral medicine research, practice, and policy. Transl Behav Med 2018; 8:4-6. [PMID: 29385593 DOI: 10.1093/tbm/ibx068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Kristi D Graves
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
| | | | - Kenneth P Tercyak
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA
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32
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Hall ET, Parikh D, Caswell-Jin JL, Gupta T, Mills MA, Kingham KE, Koff R, Ford JM, Kurian AW. Pathogenic Variants in Less Familiar Cancer Susceptibility Genes: What Happens After Genetic Testing? JCO Precis Oncol 2018; 2:1-10. [DOI: 10.1200/po.18.00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Purpose As genetic testing expands, patients are increasingly found to carry pathogenic variants in cancer susceptibility genes that are less familiar to most clinicians, specifically genes other than those causing hereditary breast ovarian cancer syndrome ( BRCA1 and BRCA2) and Lynch syndrome. Little is known about the subsequent behaviors of such patients in terms of managing cancer risks and informing relatives. Methods All adult patients who were counseled and tested at the Stanford Cancer Genetics Clinic from January 2013 to July 2015 and had a pathogenic variant in a non- BRCA1/2, non–Lynch syndrome gene were invited to participate in a telephone interview about adherence to risk-reducing recommendations, genetic testing by relatives, and new cancer incidence. Results Fifty-seven (40%) of 142 eligible patients were successfully contacted, and all 57 patients participated; median follow-up was 677 days (range, 247 to 1,401 days). Most patients (82%; 95% CI, 70% to 90%) recalled that a risk-reducing intervention (screening, medication, or surgery) was recommended, and most patients (85%; 95% CI, 72% to 93%) adhered to the recommendation. Nearly all patients (91%; 95% CI, 81% to 97%) shared results with relatives, and most patients (78%; 95% CI, 64% to 88%) reported that a relative was subsequently tested. During the follow-up period, 9% of patients (95% CI, 3% to 19%) developed second cancers, and in 14% of patients (95% CI, 7% to 26%), a first-degree relative developed cancer, some of which were detected by recommended screening. Conclusion Patients with a pathogenic variant in a less familiar cancer susceptibility gene report high adherence to risk-reducing interventions. Furthermore, in the 57 carriers and subsequently tested relatives with two years of follow-up, a total of three cancers (one in a proband and two in relatives) were detected through interventions recommended on the basis of the pathogenic variant. These results suggest a potential benefit of genetic counseling and testing for pathogenic variants in less familiar genes.
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Affiliation(s)
| | | | | | - Tanya Gupta
- All authors: Stanford University, Stanford, CA
| | | | | | - Rachel Koff
- All authors: Stanford University, Stanford, CA
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33
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Amendola LM, Berg JS, Horowitz CR, Angelo F, Bensen JT, Biesecker BB, Biesecker LG, Cooper GM, East K, Filipski K, Fullerton SM, Gelb BD, Goddard KA, Hailu B, Hart R, Hassmiller-Lich K, Joseph G, Kenny EE, Koenig BA, Knight S, Kwok PY, Lewis KL, McGuire AL, Norton ME, Ou J, Parsons DW, Powell BC, Risch N, Robinson M, Rini C, Scollon S, Slavotinek AM, Veenstra DL, Wasserstein MP, Wilfond BS, Hindorff LA, Plon SE, Jarvik GP, Jarvik GP. The Clinical Sequencing Evidence-Generating Research Consortium: Integrating Genomic Sequencing in Diverse and Medically Underserved Populations. Am J Hum Genet 2018; 103:319-327. [PMID: 30193136 DOI: 10.1016/j.ajhg.2018.08.007] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/15/2018] [Indexed: 01/26/2023] Open
Abstract
The Clinical Sequencing Evidence-Generating Research (CSER) consortium, now in its second funding cycle, is investigating the effectiveness of integrating genomic (exome or genome) sequencing into the clinical care of diverse and medically underserved individuals in a variety of healthcare settings and disease states. The consortium comprises a coordinating center, six funded extramural clinical projects, and an ongoing National Human Genome Research Institute (NHGRI) intramural project. Collectively, these projects aim to enroll and sequence over 6,100 participants in four years. At least 60% of participants will be of non-European ancestry or from underserved settings, with the goal of diversifying the populations that are providing an evidence base for genomic medicine. Five of the six clinical projects are enrolling pediatric patients with various phenotypes. One of these five projects is also enrolling couples whose fetus has a structural anomaly, and the sixth project is enrolling adults at risk for hereditary cancer. The ongoing NHGRI intramural project has enrolled primarily healthy adults. Goals of the consortium include assessing the clinical utility of genomic sequencing, exploring medical follow up and cascade testing of relatives, and evaluating patient-provider-laboratory level interactions that influence the use of this technology. The findings from the CSER consortium will offer patients, healthcare systems, and policymakers a clearer understanding of the opportunities and challenges of providing genomic medicine in diverse populations and settings, and contribute evidence toward developing best practices for the delivery of clinically useful and cost-effective genomic sequencing in diverse healthcare settings.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Gail P Jarvik
- Division of Medical Genetics, Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Genome Sciences, University of Washington, Seattle, WA 98195, USA.
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