Exome sequencing disclosures in pediatric cancer care: Patterns of communication among oncologists, genetic counselors, and parents

Parents' and patients' perspectives, experiences, and preferences for germline genetic or genomic testing of children with cancer: A systematic review

PURPOSE

Germline testing in pediatric cancer presents opportunities and challenges. Understanding family perspectives, experiences, and preferences will optimize integration into routine care.

METHODS

Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we searched 4 databases for studies exploring perspectives, experiences, and preferences of parents/caregivers and/or patients regarding germline testing of children with cancer. Qualitative and quantitative data were extracted, organized, and summarized by research question and themes.

RESULTS

We identified 2286 unique articles, of which 24 were included. Interest in and uptake of testing was high. Families were motivated by altruism and a desire for inheritance/causation information. Testing barriers included psychological concerns, timing of the testing approach if offered at diagnosis or in a high-risk cancer setting and privacy/discrimination. Testing experiences highlighted challenges yet also positive impacts, with results providing psychological relief and informing proactive decision making. Timing preferences varied; however, allowing time to adjust to a new diagnosis was a common theme. Most wanted to receive as many germline sequencing-related results as possible.

CONCLUSION

Findings underscore the importance of integrating germline analyses into pediatric cancer care with flexibility and support for families facing challenges. Where possible, consent should be provided at a time that suits each family's situation with access to information aligning with their needs and preferences.

PROSPERO

CRD42023444890.

A Communication and Decision-Making Framework for Pediatric Precision Medicine

Advances in genomic testing have been pivotal in moving childhood cancer care forward, with genomic testing now a standard diagnostic tool for many children, adolescents, and young adults with cancer. Beyond oncology, the role of genomic testing in pediatric research and clinical care is growing, including for children with developmental differences, cardiac abnormalities, and epilepsy. Despite more standard use in their patients, pediatricians have limited guidance on how to communicate this complex information or how to engage parents in decisions related to precision medicine. Drawing from empirical work in pediatric informed consent and existing models of shared decision-making, we use pediatric precision cancer medicine as a case study to propose a conceptual framework to approach communication and decision-making about genomic testing in pediatrics. The framework relies on identifying the type of genomic testing, its intended role, and its anticipated implications to inform the scope of information delivered and the parents' role in decision-making (leading to shared decision-making along a continuum from clinician-guided to parent-guided). This type of framework rests on practices known to be standard in other complex decision-making but also integrates unique features of genomic testing and precision medicine. With the increasing prominence of genomics and precision medicine in pediatrics, with our communication and decision-making framework, we aim to guide clinicians to better support their pediatric patients and their parents in making informed, goal-concordant decisions throughout their care trajectory.

Parents' expectations, preferences, and recall of germline findings in a childhood cancer precision medicine trial

BACKGROUND

Germline genome sequencing in childhood cancer precision medicine trials may reveal pathogenic or likely pathogenic variants in cancer predisposition genes in more than 10% of children. These findings can have implications for diagnosis, treatment, and the child's and family's future cancer risk. Understanding parents' perspectives of germline genome sequencing is critical to successful clinical implementation.

METHODS

A total of 182 parents of 144 children (<18 years of age) with poor-prognosis cancers enrolled in the Precision Medicine for Children with Cancer trial completed a questionnaire at enrollment and after the return of their child's results, including clinically relevant germline findings (received by 13% of parents). Parents' expectations of germline genome sequencing, return of results preferences, and recall of results received were assessed. Forty-five parents (of 43 children) were interviewed in depth.

RESULTS

At trial enrollment, most parents (63%) believed it was at least "somewhat likely" that their child would receive a clinically relevant germline finding. Almost all expressed a preference to receive a broad range of germline genomic findings, including variants of uncertain significance (88%). Some (29%) inaccurately recalled receiving a clinically relevant germline finding. Qualitatively, parents expressed confusion and uncertainty after the return of their child's genome sequencing results by their child's clinician.

CONCLUSIONS

Many parents of children with poor-prognosis childhood cancer enrolled in a precision medicine trial expect their child may have an underlying cancer predisposition syndrome. They wish to receive a wide scope of information from germline genome sequencing but may feel confused by the reporting of trial results.

Views of Adolescents and Young Adults with Cancer and Their Oncologists Toward Patients' Participation in Genomic Research

Purpose: With increased use of genomic testing in cancer research and clinical care, it is important to understand the perspectives and decision-making preferences of adolescents and young adults (AYAs) with cancer and their treating oncologists. Methods: We conducted an interview substudy of the BASIC3 Study, which enrolled newly diagnosed cancer patients <18 years of age with assent. Of 32 young adults (YAs) with cancer who reached the age of majority (AOM; 18 years) while on study, 12 were successfully approached and all consented to study continuation at AOM. Of those, seven completed an interview. Patients' oncologists, who enrolled and participated in return of clinical genomic results, were also interviewed (n = 12). Interviews were transcribed, deidentified, and analyzed using thematic analysis. Results: YAs cited the possibility of helping others and advancing science as major reasons for their assent to initial study enrollment and their willingness to consent at AOM. YAs thought obtaining informed consent from research participants for study continuation at AOM was a good idea in case they changed their minds or wanted to make their own decisions, and to keep them aware of study activities. There was diversity in what YAs understood and learned from genomic testing: some recalled specific findings, while some remembered minimal information about their results. Oncologists varied in their assessment of adolescents' engagement with the study and understanding of their results. Conclusion: Given the different ways AYAs engage with genomic information, careful assessment of AYAs' diverse communication and decision-making preferences is needed to tailor interactions accordingly.

Parent Quality of Life After Disclosure of Pediatric Oncology Germline Sequencing Results

PURPOSE

To characterize parents' quality of life (QoL) after germline genomic sequencing for their children with cancer.

METHODS

Participants were n = 104 parents of children with cancer enrolled in a prospective study of clinical tumor and germline genomic sequencing. Parents completed surveys at study consent (T0), before disclosure of their child's germline results (T1), and again ≥5 weeks after results disclosure (T2). Bivariate associations with QoL were examined, followed by a multivariable regression model predicting parents' psychological distress.

RESULTS

At T2, parental distress significantly differed by their children's germline result type (positive, uncertain, negative; P = .038), parent relationship status (P = .04), predisclosure genetics knowledge (P = .006), and predisclosure worry about sequencing (P < .001). Specifically, parents of children with positive (ie, pathogenic or likely pathogenic) results experienced greater distress than those of children with negative results (P = .029), as did parents who were single, more knowledgeable about genetics, and with greater worry. In the adjusted regression model, a positive germline result remained significantly associated with parents' lower QoL at T2 follow-up (F [4,92] = 9.95; P < .001; R2 = .30; β = .19; P = .031).

CONCLUSION

Germline genomic sequencing for children with cancer is associated with distress among parents when revealing an underlying cancer predisposition among their affected children. Genetic education and counseling before and after germline sequencing may help attenuate this impact on QoL by addressing parents' concerns about test results and their health implications. Assessing parents' worry early in the testing process may also aid in identifying those most likely in need of psychosocial support.

Families with complex needs: an inside perspective from young people, their carers, and healthcare providers

Complex health needs are demanding and often require additional medical, psychological and social support. All those involved (e.g., patients, carers, professionals) face a unique set of challenges and needs, especially in families where the patient is a child or a young person with a lifelong condition. The aim of the study was to explore carers' and young people's needs when living with long term conditions, as well as the views of the healthcare professionals supporting them. Semi-structured interviews with 30 participants (11 professionals, 10 parents, and 9 young people) were conducted. Interviews focused on 3 main areas-(1) medical needs, (2) psychological needs, and (3) communication needs-and were analyzed using thematic analysis. Four main themes emerged: (1) Acceptance takes time refers to the often long and challenging process of adapting to the diagnosis and living with the condition; (2) Close guidance captures the importance of specialised and long term guidance in accessing and managing the complexities of the medical system; (3) Open communication shows the families' need to be collaboratively connected to healthcare providers and other families facing similar difficulties; and (4) Long-term support underlines the importance of long term formal and informal support strategies. The participants' experiences and views have provided us with insight and guidance for developing and implementing personalized and integrated services. This inside perspective is key for future research aimed at better understanding the impact of complex conditions and meaningful ways to support families throughout their journeys.

Examining access to care in clinical genomic research and medicine: Experiences from the CSER Consortium

INTRODUCTION

Ensuring equitable access to health care is a widely agreed-upon goal in medicine, yet access to care is a multidimensional concept that is difficult to measure. Although frameworks exist to evaluate access to care generally, the concept of "access to genomic medicine" is largely unexplored and a clear framework for studying and addressing major dimensions is lacking.

METHODS

Comprised of seven clinical genomic research projects, the Clinical Sequencing Evidence-Generating Research consortium (CSER) presented opportunities to examine access to genomic medicine across diverse contexts. CSER emphasized engaging historically underrepresented and/or underserved populations. We used descriptive analysis of CSER participant survey data and qualitative case studies to explore anticipated and encountered access barriers and interventions to address them.

RESULTS

CSER's enrolled population was largely lower income and racially and ethnically diverse, with many Spanish-preferring individuals. In surveys, less than a fifth (18.7%) of participants reported experiencing barriers to care. However, CSER project case studies revealed a more nuanced picture that highlighted the blurred boundary between access to genomic research and clinical care. Drawing on insights from CSER, we build on an existing framework to characterize the concept and dimensions of access to genomic medicine along with associated measures and improvement strategies.

CONCLUSIONS

Our findings support adopting a broad conceptualization of access to care encompassing multiple dimensions, using mixed methods to study access issues, and investing in innovative improvement strategies. This conceptualization may inform clinical translation of other cutting-edge technologies and contribute to the promotion of equitable, effective, and efficient access to genomic medicine.

Pediatric Oncologists' Experiences Returning and Incorporating Genomic Sequencing Results into Cancer Care

Pediatric oncologists’ perspectives around returning and incorporating tumor and germline genomic sequencing (GS) results into cancer care are not well-described. To inform optimization of cancer genomics communication, we assessed oncologists’ experiences with return of genomic results (ROR), including their preparation/readiness for ROR, collaboration with genetic counselors (GCs) during ROR, and perceived challenges. The BASIC3 study paired pediatric oncologists with GCs to return results to patients’ families. We thematically analyzed 24 interviews with 12 oncologists at two post-ROR time points. Oncologists found pre-ROR meetings with GCs and geneticists essential to interpreting patients’ reports and communicating results to families. Most oncologists took a collaborative ROR approach where they discussed tumor findings and GCs discussed germline findings. Oncologists perceived many roles for GCs during ROR, including answering families’ questions and describing information in lay language. Challenges identified included conveying uncertain information in accessible language, limits of oncologists’ genetics expertise, and navigating families’ emotional responses. Oncologists emphasized how GCs’ and geneticists’ support was essential to ROR, especially for germline findings. GS can be successfully integrated into cancer care, but to account for the GC shortage, alternative ROR models and access to genetics resources will be needed to better support families and avoid burdening oncologists.

Adaptation of the working alliance inventory for the assessment of the therapeutic alliance in genetic counseling

The concept of therapeutic alliance is central to genetic counseling as the mechanism through which the outcomes of empowerment and effective coping are likely to be achieved. To date, there have been no published systematic assessments of the therapeutic relationship in genetic counseling. We adapted a previously validated measure of the therapeutic alliance to genetic counseling and assessed its reliability and validity. Participants were enrolled in a clinical genomic study where they were randomized to receive education about carrier results via a Web platform or via a genetic counselor and then further randomized to receive genetic counseling (without additional education) or not. We rated the therapeutic alliance from audio recordings of 120 genetic counseling sessions. We modified the observer version of the Working Alliance Inventory (WAI-O), initially designed to assess therapeutic relationships in psychotherapy. We examined internal consistency reliability by calculating Cronbach's alpha and inter-rater reliability through both percent agreement and Gwet's alternative agreement coefficient (AC). Regression analyses were used to evaluate the relationship of WAI-O scores with session length and with the designation of the session as one in which prior education was delivered by the genetic counselor or not. The adapted scale had high-reliability characteristics with agreement of 88%-93%, Gwet's AC of 0.84-0.90, and Cronbach's alpha of 0.89-0.93 for the three WAI-O subscales (bonds, goals, and tasks). Although there was no difference in alliance based on whether prior education was provided by the genetic counselor, the total WAI-O score significantly increased with increasing session length (beta =0.667, p<.001), providing preliminary evidence of construct validity. The WAI-O that we have adapted can be used reliably with two independent raters to assess the therapeutic alliance in studies of genetic counseling. The initial evidence for construct validity is promising and should be reassessed in future genetic counseling studies using the WAI-O.

Characterizing patient-oncologist communication in genomic tumor testing: The 21-gene recurrence score as an exemplar

OBJECTIVE

Women with early-stage, ER + breast cancer are recommend to receive genomic profiling tests, such as the 21-gene Recurrence Score (RS) test, to guide treatment decisions. We examined test- and treatment-related information discussed and the associations between RS categories and aspects of communication during patient-oncologist clinical encounters.

METHODS

As part of a larger trial, clinical encounters (N = 46) were audiorecorded and coded for 1) RS- and treatment-related information, 2) shared decision making, 3) patient active participation, and 4) oncologist patient-centered communication. We examined differences by RS category using mixed models, adjusting for nesting within oncologist.

RESULTS

Patients with a high RS were more likely to receive a chemotherapy recommendation (p < .01), hear about the risks/side effects of chemotherapy (p < .01), and offer their preferences (p = .02) than those with intermediate or low RS. Elements of shared decision making increased with RS. Oncologist patient-centered communication (M = 4.09/5, SD = .25) and patient active participation (M = 3.5/4, SD = 1.0) were high across RS.

CONCLUSION

Findings suggest that disease severity, rather than clinical uncertainty, impact treatment recommendations and shared decision making.

PRACTICE IMPLICATIONS

Oncologists adjust test- and treatment-related information and shared decision making by disease severity. This information provides a framework to inform decision making in complex cancer and genomics settings.

Germline whole genome sequencing in pediatric oncology in Denmark-Practitioner perspectives

BACKGROUND

With the implementation of a research project providing whole genome sequencing (WGS) to all pediatric cancer patients in Denmark (2016-2019), we sought to investigate healthcare professionals' views on WGS as it was actively being implemented in pediatric oncology.

METHODS

Semistructured interviews were carried out with pediatric oncologists, clinical geneticists, and research coordinating nurses (N = 17), followed by content analysis of transcribed interviews. Interviews were supplemented by ethnographic observations on Danish pediatric oncology wards. Additionally, questionnaires were distributed to healthcare professionals concerning when they found it appropriate to approach families regarding WGS. The response rate was 74%.

RESULTS

Healthcare professionals see imbalances in doctor-patient relationship, especially the double role doctors have as clinicians and researchers. Some were concerned that it might not be possible to obtain meaningful informed consent from all families following diagnosis. Still, 94% of respondents found it acceptable to approach families during the first 4 weeks from the child's diagnosis. Views on the utility of WGS, treatment adaptation, and surveillance differed among interviewees.

CONCLUSION

Overall, healthcare professionals see dilemmas arising from WGS in the pediatric oncology clinic, and some advocate for further educational sessions with families and healthcare professionals. Despite concerns, healthcare professionals overwhelmingly supported early approach of families regarding WGS. Interviewees disagree on the benefits of surveillance based on genetic findings.

Cancer Genetic Counseling-Current Practice and Future Challenges

Cancer genetic counseling practice is rapidly evolving, with services being provided in increasingly novel ways. Pretest counseling for cancer patients may be abbreviated from traditional models to cover the elements of informed consent in the broadest of strokes. Genetic testing may be ordered by a cancer genetics professional, oncology provider, or primary care provider. Increasingly, direct-to-consumer testing options are available and utilized by consumers anxious to take control of their genetic health. Finally, genetic information is being used to inform oncology care, from surgical decision-making to selection of chemotherapeutic agent. This review provides an overview of the current and evolving practice of cancer genetic counseling as well as opportunities and challenges for a wide variety of indications in both the adult and pediatric setting.