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.
Real-world clinical burden of aggressive disease (AD) in advanced/metastatic non small cell lung cancer (aNSCLC).
Metastatic Non-Small Cell Lung Cancer
Lung Cancer—Non-Small Cell Metastatic
2019 ASCO Annual Meeting
J Clin Oncol 37, 2019 (suppl; abstr e20723)
Author(s): Marta Batus, Victoria Jennifer Stefaniak, Cliff Molife, Jeffrey Melson Clarke, Katherine B. Winfree, Lucy Mitchell, Zhanglin Lin Cui, Philip D. Bonomi; Rush University Medical Center, Chicago, IL; Eli Lilly and Company, Indianapolis, IN; Duke University Medical Center, Durham, NC
Background: Clinical trials have shown that aNSCLC patients (pts) with AD, including those with rapid disease progression (RDP) on initial therapy (time to progression ≤ 12 weeks), have poor prognosis. This retrospective study evaluates the real world clinical burden associated with AD, defined as the difference in clinical effectiveness outcomes during subsequent treatment following RDP v non-RDP on platinum-based (Pt) therapy. Methods: Adult aNSCLC pts receiving standard post-Pt progression therapy (immune checkpoint inhibitors, single agent chemo, ramucirumab) between 03/01/2015 and 06/30/2018, after Pt therapy, with ≥ 3 months of potential follow up, were identified in the Flatiron EHR-derived deidentified database and assigned to RDP (n = 158) and non-RDP (n = 518) cohorts. Real-world tumor response (rwTR) was collected using technology-enabled abstraction. Overall survival (OS) from start of 1L, and real-world (rw) progression free survival (PFS) & rw tumor response outcomes (rw objective response rate [rwORR], rw disease control rate [rwDCR], rw time to first response [rwTTFR], rw duration of response [rwDOR] & rw best response [rwBR]) during post-Pt progression therapy were estimated. Results: Of 676 eligible pts, 23% had RDP. Clinical outcomes in the RDP and non-RDP cohorts are shown in table. Conclusions: Findings from this real world cohort underscore the clinical burden & unmet medical need for more effective treatment strategies in pts with aggressive aNSCLC pts who rapidly progress on initial therapy. As the treatment landscape evolves, characterization of these pts is warranted to identify potential risk factors.
n = 158
N = 518
|Hazard Ratio (HR) |
(1.02 - 1.22)*
|HR (95% CI)||1.18 (1.05 - 1.32)*|
|rwBR of PD, %#||19.50||15.19|
All medians (in months) estimated using Kaplan Meier method; ORR, complete response (CR) or partial response (PR); DCR, CR or PR or stable disease; *P< 0.05; #P value not computed