scholarly journals INNV-28. MOLECULAR TESTING IN NEURO-ONCOLOGY – ASSESSMENT OF UTILITY AND PRACTICE PATTERNS. A SOCIETY FOR NEURO-ONCOLOGY MEMBERSHIP SURVEY

2019 ◽  
Vol 21 (Supplement_6) ◽  
pp. vi136-vi136
Author(s):  
Maciej Mrugala ◽  
Susan Chang

Abstract BACKGROUND Molecular testing (MT) is utilized in neuro-oncology with increasing frequency. Multiple molecular panels are available providing a spectrum of information. We were interested in learning how this information is acquired, what are the practice patterns regarding this type of testing, how are the results utilized in patient care and how prepared neuro-oncologists are to interpret these results. METHODS We conducted a survey using the Society for Neuro-Oncology membership database. We developed a set of 13 questions and administered the survey to 2022 members using the online platform. RESULTS We received 153 responses (7.5% of membership). 89% percent of responders routinely order MT. Of those who do not order MT on all patients, 50% test younger patients and 57% midline tumors. 83% use MT in recurrent glioma. Other common indications for MT included: metastatic tumors, meningioma, medulloblastoma, ATRT. Majority (60%) use in-house panels, followed by Foundation One (35%), TEMPUS (13%), CARIS (10%) and other panels (23%). For 57% of respondents, the data from MT was somewhat useful and for 41% it was very useful. 78% used the results of MT for clinical decision-making. BRAF, EGFR/ALK, H3K27 mutations were most commonly used for treatment decisions. 50% of respondents have molecular tumor boards at their institutions and a majority of practitioners share the results of MT with their patients (95%). Respondents would like to see SNO-endorsed official guidelines on MT, organized lists of targeted agents available for specific mutations, a database of targetable mutations and clinical trials and more educational programs on the subject. CONCLUSIONS Molecular testing is neuro-oncology is commonly done. Many providers rely on the information for clinical decision making where appropriate. In-house and commercial genetic panels are equally used in practice. There continues to be a need for more education on the subject and development of neuro-oncology specific guidelines.

2021 ◽  
Author(s):  
Shannon Fortin Ensign ◽  
Maya Hrachova ◽  
Susan Chang ◽  
Maciej M Mrugala

Abstract Background Molecular testing (MT) is utilized in neuro-oncology with increasing frequency. The aim of this study was to determine clinical practice patterns to acquire this information, interpret and utilize MT for patient care, and identify unmet needs in the practical clinical application of MT. Methods We conducted a voluntary online survey of providers within the Society for Neuro-Oncology (SNO) membership database between March and April 2019. Results We received 152 responses out of 2022 SNO members (7.5% of membership). 88.8% of respondents routinely order MT for newly diagnosed gliomas. Of those who do not, testing is preferentially performed in younger patients or those with midline tumors. 82.8% use MT in recurrent gliomas. Other common indications included: metastatic tumors, meningioma, and medulloblastoma. Many providers utilize more than one resource (36.0%), most frequently using in-house (41.8%) over commercially available panels. 78.1% used the results for clinical decision-making, with BRAF, EGFR, ALK, and H3K27 mutations most commonly directing treatment decisions. Approximately, half (48.5%) of respondents have molecular tumor boards at their institutions. Respondents would like to see SNO-endorsed guidelines on MT, organized lists of targeted agents available for specific mutations, a database of targetable mutations and clinical trials, and more educational programs on MT. Conclusion This survey was marked by several limitations including response rate and interpretation of MT. Among respondents, there is routine use of MT in Neuro-Oncology, however, there remains a need for increased guidance for providers to effectively incorporate the expanding genomic data resulting from MT into daily Neuro-Oncology practice.


2018 ◽  
Vol 230 (06) ◽  
pp. 305-313 ◽  
Author(s):  
Heidi Bächli ◽  
Jonas Ecker ◽  
Cornelis van Tilburg ◽  
Dominik Sturm ◽  
Florian Selt ◽  
...  

AbstractCentral nervous system (CNS) tumors account for the highest mortality among pediatric malignancies. Accurate diagnosis is essential for optimal clinical management. The increasing use of molecular diagnostics has opened up novel possibilities for more precise classification of CNS tumors. We here report a single-institutional collection of pediatric CNS tumor cases that underwent a refinement or a change of diagnosis after completion of molecular analysis that affected clinical decision-making including the application of molecularly informed targeted therapies. 13 pediatric CNS tumors were analyzed by conventional histology, immunohistochemistry, and molecular diagnostics including DNA methylation profiling in 12 cases, DNA sequencing in 8 cases and RNA sequencing in 3 cases. 3 tumors had a refinement of diagnosis upon molecular testing, and 6 tumors underwent a change of diagnosis. Targeted therapy was initiated in 5 cases. An underlying cancer predisposition syndrome was detected in 5 cases. Although this case series, retrospective and not population based, has its limitations, insight can be gained regarding precision of diagnosis and clinical management of the patients in selected cases. Accuracy of diagnosis was improved in the cases presented here by the addition of molecular diagnostics, impacting clinical management of affected patients, both in the first-line as well as in the follow-up setting. This additional information may support the clinical decision making in the treatment of challenging pediatric CNS tumors. Prospective testing of the clinical value of molecular diagnostics is currently underway.


2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A893-A894
Author(s):  
Gonzalo J Acosta Garcia ◽  
Stephanie Smooke Praw

Abstract We present the case of a patient with a thyroid nodule of indeterminate cytology on fine-needle aspiration (FNA) biopsy whose molecular profile significantly impacted clinical decision making and treatment. A 77-year-old woman with a history of hyperthyroidism presented to our clinic for a second opinion regarding management of a recently discovered right thyroid nodule. Thyroid ultrasound (US) 6 months prior showed a 2.6 cm, heterogeneous nodule with peripheral vascular flow; not characterized based on ATA or TIRADS criteria. Family history was significant for papillary thyroid cancer in daughter at age 35 years. The patient had no history of head or neck irradiation. She had no compressive symptoms or manifestations of hyper or hypothyroidism. FNA biopsy of the nodule was done twice in 4 months, and cytology was consistent with follicular lesion of undetermined significance (FLUS, Bethesda III) in both occasions. Repeat FNA biopsy at our institution showed follicular neoplasm (FN, Bethesda IV), and molecular testing using ThyroSeq v3 was positive for HRAS and TERT mutations, which conferred a >95% risk of cancer. Patient was referred to Endocrine Surgery and total thyroidectomy was recommended based on nodule’s molecular profile and associated hyperthyroidism. No suspicious lymph nodes were noted on preoperative US. No gross local invasion observed intraoperatively. Surgical pathology showed intrathyroidal FN without invasion. However, given disparity between pathology findings and molecular markers, specimen was sent for outside blinded pathology review which concluded to be a follicular thyroid carcinoma with capsular invasion but no angiolymphatic invasion or extrathyroidal extension. Based on these findings, along with the known HRAS and TERT mutations, it was advised to proceed with radioiodine (RAI) remnant ablation. Patient was prepared with thyrotropin alfa and received 29 millicuries of RAI. Post-treatment scan showed focal neck uptake consistent with ablated thyroid tissue and no distant metastases. Patient had an excellent response to therapy, without evidence of biochemical or structural recurrence 2 years later. Molecular testing of cytologically indeterminate thyroid nodules (Bethesda III, IV) has become an important tool to better refine risk of malignancy. Furthermore, the presence of certain mutations or mutation combinations, such as RAS and TERT co-occurrence, suggests a more aggressive behavior associated with worse outcomes. As a result, a more aggressive approach might be recommended. Our case illustrates how molecular testing can significantly influence therapeutic decisions such as extent of surgery, interpretation of surgical pathology and/or use of RAI. Further research is needed to determine if its routine use may lead to improved cancer-related outcomes or if it is cost-effective in the risk stratification of differentiated thyroid cancer.


2018 ◽  
Vol 36 (30_suppl) ◽  
pp. 228-228
Author(s):  
Cristiane Decat Bergerot ◽  
Paulo Gustavo Bergerot ◽  
Joann Hsu ◽  
Nazli Dizman ◽  
Stacy W. Gray ◽  
...  

228 Background: Genomic profiling (GP) plays an important role in the care of patients diagnosed with advanced cancer, and has been used to guide clinical decision making. As age has been associated with low health literacy, we sought to determine comprehension of the goals and objectives of GP between younger (age < 65) and older (age ≥65) with genitourinary cancers. Methods: Eligible patients had agreed to receive somatic GP as a part of routine clinical care through a CLIA-certified commercially available platform. Participating physicians conducted a standardized dialogue with patients pertaining to the rationale for and clinical utility of somatic GP. Patients then received an in-person survey lasting approximately 10-15 min and assessing a broad range of perceptions related to GP. Results: Among 47 patients, 62% were characterized as older adults. Diagnoses encountered included kidney (43%), prostate (32%), and bladder (25%). Only older adults perceived any shortcomings in the description of GP. These shortcomings related to the clarity of the descriptions of genomic data, as well as the accuracy, detail and compassion with which this information was conveyed. Older adults demonstrated a very strong reliance on physician input in their decision to obtain somatic GP - 42% of older adults suggested that trust in their physician was among the top three reasons for which they opted to do genomic testing, in contrast to just 10% of younger patients (P = 0.04). Both older and younger patients demonstrated frequent misconceptions pertaining to the role of GP. For example, the majority of younger (78%) and older (52%) patients suggested the test was being performed for prognostic purposes. Both groups also frequently held the notion that somatic testing could identify hereditary cancer-related disorders (younger: 78% vs older: 66%). Conclusions: Detailed surveys of patients with genitourinary cancers reveal varied comprehension of somatic GP between younger and older patients. Interventions to enhance understanding of the principles of GP may be helpful in facilitating shared decision-making, particularly among older patients.


2017 ◽  
pp. 1-11 ◽  
Author(s):  
Derrick L. Tao ◽  
Shawna Bailey ◽  
Tomasz M. Beer ◽  
Erik Foss ◽  
Brooke Beckett ◽  
...  

Purpose Metastatic castration-resistant prostate cancer (CRPC) is the lethal form of the disease. Many groups have performed mutational or immunohistochemistry (IHC) testing in metastatic CRPC to identify treatment targets. However, the frequency with which mutational or IHC data have an impact on clinical decision making and the outcomes of molecularly guided therapy in CRPC are largely unknown. We report our institution’s experience with mutational and IHC testing in patients with metastatic CRPC and its impact on clinical decision making and patient outcomes. Methods Between 2012 and 2015, 59 patients with CRPC underwent metastatic tissue biopsies and were genotyped with a 37–cancer gene panel in a Clinical Laboratory Improvement Amendments–certified laboratory. PTEN expression by IHC testing was also measured in 35 of these samples. A retrospective chart review was performed to determine whether the genomic information was acted upon and the outcome of patients whose treatment was guided by molecular testing. Results Forty-six of 59 patients with CRPC (78.0%) had biopsies with adequate tumor for mutational testing. Thirty-one of 46 subjects (67.4%) had mutations identified by sequencing. Of the 35 patients with CRPC whose biopsies were evaluated for PTEN expression by IHC testing, 13 had PTEN loss. Two patients had treatment on the basis of molecular testing, and one of these subjects had greater tumor control with molecularly guided therapy than his immediate prior therapy. Conclusion Targeted sequencing and IHC can identify clinically informative molecular abnormalities in CRPC. Despite this, a small minority of patients in our series underwent therapies guided by mutational or IHC testing. Actionability of abnormalities identified in metastatic CRPC may be improved with access to clinical trials, insurance approval for unapproved uses of existing anticancer drugs, and larger gene sequencing panels that include more frequently mutated genes.


2017 ◽  
Vol 9 (8) ◽  
pp. 551-564 ◽  
Author(s):  
Jonathan M. Loree ◽  
Scott Kopetz

Over the past decade there have been significant advances in the molecular characterization of colorectal cancer (CRC) that are driving treatment decisions. Expanded RAS testing beyond KRAS exon 2 was established as crucial for identifying patients who will respond to anti-epidermal growth factor receptor (EGFR) therapies and low-frequency mutations in RAS/tumor heterogeneity are gaining recognition as potential mechanisms of resistance. Despite this progress, the fact that we do not understand why left-sided but not right-sided tumors have improved outcomes following anti-EGFR therapy highlights our superficial understanding of this disease. Even with few new targeted agents receiving approval in CRC, the incorporation of next-generation sequencing into clinical decision making represents an important step forward. Biomarkers such as BRAF mutations, microsatellite instability, and HER2 amplification represent promising molecular aberrations with therapies in various stages of development, and highlight the importance of companion diagnostics in supporting targeted agents. In this review, we will discuss the importance of incorporating biomarkers into clinical decision making and regimen selection in CRC. We will particularly focus on the recent evidence suggesting an important role for tumor location in selecting first-line therapy, the importance of recent advances in biomarker development and molecular subtyping, as well as recently approved agents (regorafenib and TAS-102) and promising targeted agents that have the potential to change the standard of care.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e14660-e14660
Author(s):  
Jens Rueter ◽  
Susan D. Airhart ◽  
Carol J. Bult ◽  
Emily Jocoy ◽  
Kyle Draheim ◽  
...  

e14660 Background: Molecular Tumor Boards (MTB) are often the critical decision-making step in identifying genome-guided treatments for patients with difficult-to-treat cancers, e.g. BRAF mutated metastatic colon cancers. A common challenge for MTBs is prioritizing between two or more actionable variants in a tumor. A potential solution to this challenge is to incorporate drug response in Patient-derived xenografts (PDX) models into MTB deliberations. The goal of this study was to evaluate the feasibility of using PDX models to elucidate drug-effectiveness in BRAF-mutated cancer as an example of a common clinical scenario. Methods: We selected BRAF-mutated PDX models from the JAX PDX resource based on the presence of an activating BRAF mutation and a second actionable variant from the JAX Cancer Treatment Profile (CTP). Somatic mutation data from PDX tumors were presented to members of the Intermountain MTB. PDX models were then treated with drugs recommended by the MTB; outcomes based on tumor growth inhibition (TGI) were shared with the MTB. Results: Gene/variant targets, associated drugs for the 2nd mutation and responses are described in the table. The MTB members determined that PDX data presented in TGI format is helpful in MTB deliberations. Activity of BRAF-targeted therapy was expected while the low activity of olaparib in the BRCA1-mutated colon cancer model was unexpected. The MTB then discussed molecular mechanisms that contributed to these outcomes. Conclusions: The pilot study demonstrated that utilizing PDX drug response data as an additional molecular annotation for MTB deliberations is feasible. Future studies will further optimize this process. [Table: see text]


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 3128-3128
Author(s):  
Meena Sadaps ◽  
Kathryn Demski ◽  
Ying Ni ◽  
Vicky Konig ◽  
Brandie Leach ◽  
...  

3128 Background: Multidisciplinary molecular tumor boards were first established with the onset of precision oncology (PO), as many clinicians were unfamiliar with the interpretation and incorporation of the information into clinical practice. PO has since rapidly evolved and integrated itself into standard of care practices for most cancer patients, yet molecular tumor boards have not grown accordingly and in fact some have been discontinued. There remains a paucity of data in regards to the value and impact of molecular tumor board discussions themselves. We previously reported on our longitudinal experiences in PO ( Sadaps et al, 2018), focusing on the therapeutic impact of matched therapy. Here, we report on the utility of our molecular tumor board in clinical decision making. Methods: We conducted a retrospective review of patients seen at Cleveland Clinic with a solid tumor malignancy who had large panel, next-generation-sequencing (NGS) performed via any commercial platform from November 2019-January 2021. Cases were filtered through a local therapeutic algorithm and then reviewed individually. Initial review was performed by a core genomics committee comprised of 2 oncologists and 2 genetic counselors. Interesting and/or complex cases were flagged for discussion at our bimonthly molecular tumor board, which is regularly attended by medical oncologists, pathologists, genetic counselors, bioinformaticians, and patient care coordinators. Data analyzed included categorization of treatment recommendations and the percentage of cases for which initial recommendations were changed based on tumor board discussion. Results: Of 782 total cases, 575 (73.5%) had a clinically relevant genomics tumor board (GTB) recommendation as compared to 51.7% from our previously reported study. 16.7% of patients had on label recommendation(s) and 86.4% had off label/ clinical trial recommendation(s). 179 (22.9%) patients were recommended for genetic counseling (GC). During our bimonthly GTB, we discussed 173 (22.1%) of these cases. Of the discussed cases, the most common tumor types were hepatobiliary (18.5%), lower gastrointestinal (17.3%), and breast (16.2%). Topics of discussion at GTB included such things as pathologic/histologic/molecular testing, prioritization of available trials, appropriateness of an off label therapy, and need for a genetics consult. Discussion at GTB resulted in a change in treatment recommendation in 63 (36.4%) cases. Conclusions: Discussions from multidisciplinary molecular tumor board impacted treatment decisions for our patients. Referral to GC was also common and should be considered an integral part of somatic sequencing review. Molecular tumor boards remain a crucial platform for treatment guidance and clinical management, especially given the increase in “actionability” over the years due to newly discovered targets and targeted therapies in this rapidly evolving field.


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