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Patient/parent perspectives on genomic tumor profiling of pediatric solid tumors: The Individualized Cancer Therapy (iCat) experience.

ABSTRACT: Genomic tumor profiling (GTP) plays an important role in the care of many adult cancer patients. Its role in pediatric oncology is still evolving, with only a subset of patients currently expected to receive clinically significant results. Little is known about perspectives of pediatric oncology patients/parents on GTP.We surveyed individuals who previously underwent GTP through the iCat (Individualized Cancer Therapy) pilot study of molecular profiling in children with relapsed, refractory, and high-risk solid tumors at four pediatric cancer centers. Following return of profiling results, a cross-sectional survey was offered to the patient, if he or she was 18 years or older at enrollment, or parent, if he or she was under 18 years of age. Forty-five surveys (85% response) were completed.Eighty-nine percent (39/44) of respondents reported hoping participation would help find cures for future patients, while 59% (26/44) hoped it would increase their/their child's chance of cure. Most had few concerns about GTP, but 12% (5/43) worried they would learn their/their child's cancer was less treatable or more aggressive than previously thought. Sixty-four percent (29/45) reported feeling their participation had helped others and 44% (20/45) felt they had helped themselves/their own child, despite only one substudy subject receiving targeted therapy matched to GTP findings. Fifty-four percent (21/39) wished to receive all available profiling data, including findings unrelated to cancer and of unclear significance.Participants in pediatric GTP research perceive benefits of GTP to themselves and others, but expectations of personal benefits of GTP may exceed actual positive impact. These issues warrant consideration during consent discussions about GTP research participation.

SUBMITTER: Marron JM

PROVIDER: S-EPMC5611837 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature

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Patient/parent perspectives on genomic tumor profiling of pediatric solid tumors: The Individualized Cancer Therapy (iCat) experience.

Marron Jonathan M JM DuBois Steven G SG Glade Bender Julia J Kim AeRang A Crompton Brian D BD Meyer Stephanie C SC Janeway Katherine A KA Mack Jennifer W JW

Pediatric blood & cancer 20160718 11

<h4>Background</h4>Genomic tumor profiling (GTP) plays an important role in the care of many adult cancer patients. Its role in pediatric oncology is still evolving, with only a subset of patients currently expected to receive clinically significant results. Little is known about perspectives of pediatric oncology patients/parents on GTP.<h4>Procedure</h4>We surveyed individuals who previously underwent GTP through the iCat (Individualized Cancer Therapy) pilot study of molecular profiling in ch ...[more]

PMID: 27429135

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Project description:ImportanceUse of next-generation sequencing (NGS) to identify clinically actionable genomic targets has been incorporated into routine clinical practice in the management of advanced solid tumors; however, the clinical utility of this testing remains uncertain.ObjectiveTo determine which patients derived the greatest degree of clinical benefit from NGS profiling.Design, setting, and participantsPatients in this cohort study underwent fresh tumor biopsy and blood sample collection for genomic profiling of paired tumor and normal DNA (whole-exome or targeted-exome capture with analysis of 1700 genes) and tumor transcriptome (RNA) sequencing. Somatic and germline genomic alterations were annotated and classified according to degree of clinical actionability. Results were returned to treating oncologists. Data were collected from May 1, 2011, to February 28, 2018, and analyzed from May 1, 2011, to April 30, 2020.Main outcomes and measuresPatients' subsequent therapy and treatment response were extracted from the medical record to determine clinical benefit rate from NGS-directed therapy at 6 months and exceptional responses lasting 12 months or longer.ResultsDuring the study period, NGS was attempted on tumors from 1138 patients and was successful in 1015 (89.2%) (MET1000 cohort) (538 men [53.0%]; mean [SD] age, 57.7 [13.3] years). Potentially clinically actionable genomic alterations were discovered in 817 patients (80.5%). Of these, 132 patients (16.2%) received sequencing-directed therapy, and 49 had clinical benefit (37.1%). Exceptional responses were observed in 26 patients (19.7% of treated patients). Pathogenic germline variants (PGVs) were identified in 160 patients (15.8% of cohort), including 49 PGVs (4.8% of cohort) with therapeutic relevance. For 55 patients with carcinoma of unknown primary origin, NGS identified the primary site in 28 (50.9%), and sequencing-directed therapy in 13 patients resulted in clinical benefit in 7 instances (53.8%), including 5 exceptional responses.Conclusions and relevanceThe high rate of therapeutically relevant PGVs identified across diverse cancer types supports a recommendation for directed germline testing in all patients with advanced cancer. The high frequency of therapeutically relevant somatic and germline findings in patients with carcinoma of unknown primary origin and other rare cancers supports the use of comprehensive NGS profiling as a component of standard of care for these disease entities.

Project description:ImportanceParents of children with cancer value strong therapeutic relationships with oncology clinicians, but not every relationship is positive.ObjectiveTo identify the prevalence of challenging parent-clinician relationships in pediatric oncology and factors associated with these challenges from parent and clinician perspectives.Design, setting, and participantsThis survey was conducted among parents and oncology clinicians of children with cancer within 3 months of diagnosis from November 2015 to July 2019 at Dana-Farber Cancer Institute/Boston Children's Hospital and Texas Children's Hospital. Participants were 400 parents of children with cancer and 80 clinicians (ie, oncology physicians and nurse practitioners). Parents completed surveys about relationships with 1 to 2 primary oncology clinicians; clinicians completed surveys about relationships with parents. Data were analyzed from July 2020 to August 2021.ExposuresAt least 3 previous clinical visits between parent and clinician.Main outcomes and measuresThe Relationship Challenges Scale Parent Version and Clinician Version were developed and used to measure threats to the therapeutic alliance. For the Relationship Challenges Scale-Parent version, relationships were considered challenging if a parent responded to any single question in the 2 lowest of 4 possible categories. For the Relationship Challenges Scale-Clinician version, challenges were considered to be present if a clinician reported responses in the 3 lowest of 6 possible response categories to any question.ResultsAmong 400 parents, there were 298 [74.5%] women, 25 Asian individuals (6.3%), 28 Black individuals (7.0%), 97 Hispanic individuals (24.3%), 223 White individuals (55.8%), and 10 individuals (2.4%) with other race or ethnicity; race and ethnicity data were missing for 17 (4.3%) individuals. Among 80 clinicians, there were 57 (71.3%) women, 38 attending physicians (47.5%), 32 fellows (40.0%), and 10 nurse practitioners (12.5%). Parents identified 676 unique relationships with clinicians, and clinician reports were available for 338 relationships. Among 338 relationships with paired parent and clinician surveys, 81 relationships (24.0%) were considered challenging by parents, 127 relationships (37.6%) were considered challenging by clinicians, and 33 relationships (9.8%) were considered challenging by parent and clinician. Parents with Asian or other race or ethnicity (odds ratio [OR] vs White parents, 3.62; 95% CI, 1.59-8.26) or who had lower educational attainment (OR for ≤high school vs >high school, 3.03; 95% CI, 1.56-5.90) were more likely to experience relationships as challenging. Clinicians used a variety of strategies more frequently in 127 relationships in which they perceived challenges vs 211 relationships in which they did not perceive challenges, such as holding regular family meetings (22 relationships [17.3%] vs 13 relationships [6.2%]; P = .009) and offering extra time and attention (66 relationships [52%] vs 60 relationships [28.4%]; P < .001). However, these strategies were not used with increased frequency when parents experienced relationships as challenging vs when parents did not experience this.Conclusions and relevanceThis survey study found that nearly one-quarter of parents of children with cancer reported challenges in the therapeutic relationship with their oncologist and that clinicians used strategies to improve relationships more frequently when they experienced the relationship as challenging. These findings suggest that new strategies are needed to improve experiences for parents and to help clinicians recognize and attend to parents whose experiences are suboptimal.

Project description:BackgroundPersonalized targeted therapies have transformed management of several solid tumors. Timely and accurate detection of clinically relevant genetic variants in tumor is central to the implementation of molecular targeted therapies. To facilitate precise molecular testing in solid tumors, targeted next-generation sequencing (NGS) assays have emerged as a valuable tool. In this study, we provide an overview of the technical validation, diagnostic yields, and spectrum of variants observed in 3,164 solid tumor samples that were tested as part of the standard clinical diagnostic assessment in an academic healthcare institution over a period of 2 years.MethodsThe Ion Ampliseq™ Cancer Hotspot Panel v2 assay (ThermoFisher) that targets ~2,800 COSMIC mutations from 50 oncogenes and tumor suppressor genes was validated, and a total of 3,164 tumor DNA samples were tested in 2 years. A total of 500 tumor samples were tested by the comprehensive panel containing all the 50 genes. Other samples, including 1,375 lung cancer, 692 colon cancer, 462 melanoma, and 135 brain cancer, were tested by tumor-specific targeted subpanels including a few clinically actionable genes.ResultsOf 3,164 patient samples, 2,016 (63.7%) tested positive for at least one clinically relevant variant. Of 500 samples tested by a comprehensive panel, 290 had a clinically relevant variant with TP53, KRAS, and PIK3CA being the most frequently mutated genes. The diagnostic yields in major tumor types were as follows: breast (58.4%), colorectal (77.6%), lung (60.4%), pancreatic (84.6%), endometrial (72.4%), ovary (57.1%), and thyroid (73.9%). Tumor-specific targeted subpanels also demonstrated high diagnostic yields: lung (69%), colon (61.2%), melanoma (69.7%), and brain (20.7%). Co-occurrence of mutations in more than one gene was frequently observed.ConclusionsThe findings of our study demonstrate the feasibility of integrating an NGS-based gene panel screen as part of a standard diagnostic protocol for solid tumor assessment. High diagnostic rates enable significant clinical impact including improved diagnosis, prognosis, and clinical management in patients with solid tumors.

Dataset Information

Patient/parent perspectives on genomic tumor profiling of pediatric solid tumors: The Individualized Cancer Therapy (iCat) experience.

Publications

Patient/parent perspectives on genomic tumor profiling of pediatric solid tumors: The Individualized Cancer Therapy (iCat) experience.

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