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Publication-only abstracts (abstract number preceded by an "e"), published in conjunction with the 2019 ASCO Annual Meeting but not presented at the Meeting, can be found online only.

Precision medicine and actionable alterations in lung cancer.

Sub-category:
Metastatic Non-Small Cell Lung Cancer

Category:
Lung Cancer—Non-Small Cell Metastatic

Meeting:
2019 ASCO Annual Meeting

Abstract No:
e20707

Citation:
J Clin Oncol 37, 2019 (suppl; abstr e20707)

Author(s): Isa Mambetsariev, Sorena Nadaf, Yingyu Wang, Chen Chen, Blake Hewelt, Rebecca Pharaon, Erminia Massarelli, Marianna Koczywas, Karen L. Reckamp, Ravi Salgia; City of Hope, Duarte, CA; Univ of California San Francisco, San Francisco, CA; City of Hope National Medical Center, Duarte, CA; The University of Texas MD Anderson Cancer Center, Houston, TX; Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, CA; City of Hope Comprehensive Cancer Center, Duarte, CA; The University of Chicago, Chicago, IL

Abstract Disclosures

Abstract:

Background: In recent years, healthcare centers have become more reliant on the advent of new technology, testing methods and a greater use of electronic medical records, which provide a plethora of information available to physicians, researchers, and the medical community. This aggregate of information stands to be a powerful tool that can enable one to perform highly complex investigations more easily, as well as aid physicians in their efforts to provide personalized medicine to patients. However, in order to take advantage of vital clinical and research data, we must initially make an effort to create an effective infrastructure for the collection, storage, utilization, and protection of this information with uniquely designed disease-specific registries that have adequate informatics support to allow for the collection of a large number of patients. Methods: In this study, we perform an in-depth analysis of a series of lung adenocarcinoma patients (n = 415) with genomic and clinical data in a recently created thoracic patient registry. Results: Of the 415 patients in the analysis, 59% (n = 245) were female; the median age was 64 (range, 22-92) years with a median OS of 33.29 months (95% CI, 29.77-39.48). The frequency of the most commonly occurring oncogenes was 50% EGFR (n = 207/415), 28% KRAS (n = 97/352), and 7% ALK rearrangement (n = 28/377), while the most commonly occurring tumor suppressor genes consisted of TP53 (n = 140/283 [49%]), LRP1B (n = 63/228 [28%]), and STK11 (n = 39/278 [14%]). The most common actionable alterations were identified in EGFR L858R/exon 19 deletion (n = 177/415 [42.7%]), ALK rearrangement (n = 28/377 [7.4%]), ROS1 rearrangement (n = 3/257 [1.2%]), BRAF V600E (n = 7/288 [2.4%]) and MET exon 14 splice site/deletion (n = 7/287 [2.4%]). While there were no median OS differences in patients who were tested under a broad-panel vs small-panel (33.4 months vs 33.5 months; 95% CI; P = 0.36), there was a discernible difference in survival for 222 patients, who had an actionable alteration, with a median OS of 39.8 months as compared to 193 patients who were wild-type with a median OS of 26.0 months (95% CI; P < 0.001). In addition, we identified an unprecedented number of patients with actionable alterations [53.5% (222/415)], including distinct individual alteration rates, as compared with 15.0% and 22.3% in TCGA and GENIE respectively. Conclusions: The use of patient registries, focused genomic panels and the appropriate use of clinical guidelines in community and academic settings may influence cohort selection for clinical trials and improve survival outcomes.

 
Other Abstracts in this Sub-Category:

 

1. Association of STK11/LKB1 genomic alterations with lack of benefit from the addition of pembrolizumab to platinum doublet chemotherapy in non-squamous non-small cell lung cancer.

Meeting: 2019 ASCO Annual Meeting Abstract No: 102 First Author: Ferdinandos Skoulidis
Category: Lung Cancer—Non-Small Cell Metastatic - Metastatic Non-Small Cell Lung Cancer

 

2. Real-world outcomes of patients with advanced non-small cell lung cancer (aNSCLC) and autoimmune disease (AD) receiving immune checkpoint inhibitors (ICIs).

Meeting: 2019 ASCO Annual Meeting Abstract No: 110 First Author: Sean Khozin
Category: Lung Cancer—Non-Small Cell Metastatic - Metastatic Non-Small Cell Lung Cancer

 

3. RELAY: A multinational, double-blind, randomized Phase 3 study of erlotinib (ERL) in combination with ramucirumab (RAM) or placebo (PL) in previously untreated patients with epidermal growth factor receptor mutation-positive (EGFRm) metastatic non-small cell lung cancer (NSCLC).

Meeting: 2019 ASCO Annual Meeting Abstract No: 9000 First Author: Kazuhiko Nakagawa
Category: Lung Cancer—Non-Small Cell Metastatic - Metastatic Non-Small Cell Lung Cancer

 

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