scholarly journals P3.02b-002 Treatment Outcome Comparison between Exon 19 and 21 EGFR Mutations after Second-Line TKIs in Advanced NSCLC Patients

2017 ◽  
Vol 12 (1) ◽  
pp. S1185-S1186
Author(s):  
Zhen Zheng ◽  
Xiance Jin ◽  
Congying Xie
2021 ◽  
Vol 16 (1) ◽  
pp. S23
Author(s):  
K. Winfree ◽  
C. Molife ◽  
P. Peterson ◽  
Y. Chen ◽  
C. Visseren ◽  
...  

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 9573-9573
Author(s):  
Dingzhi Huang ◽  
Diansheng Zhong ◽  
Cuiying Zhang ◽  
Yan Zhang ◽  
Yanhong Shang ◽  
...  

9573 Background: Anti-angiogenic monoclonal antibodies plus EGFR TKIs have previously shown to prolong PFS in patients with EGFR-mutated NSCLC (JO25567 and NEJ026). Unlike bevacizumab, anlotinib is more convenient with orally administered and can inhibit more targets. Monotherapy using anlotinib has significantly prolonged median PFS and OS compared with the placebo values for third-line treatment or beyond in advanced NSCLC. We conducted a study to investigate the activity of anlotinb combined with icotinib, an oral EGFR TKI. Methods: This is a prospective, single-arm, multicenter clinical trial. Patients with locally advanced and/or metastatic IIIB, IIIC or IV non-squamous NSCLC are enrolled. Patients with EGFR exon 19 deletion and/or exon 21 L858R mutation who have not received prior therapies are eligible. The regimen consists of anlotinib (12 mg p.o, qd, day 1 to 14 every 21-day cycle) and icotinib (125mg p.o, tid). The primary endpoint is PFS. Secondary endpoints are OS, ORR, DCR and safety. Results: Between Jul 2018 and Dec 2019, 35 patients were enrolled in five centers and treated with anlotinb and icotinib. At data cutoff (Jan 7, 2020), patients were followed up for a median of 6.01 months.32 tumors were analyzed with 30 evaluable. Preliminary efficacy results: ORR was 59% (0 CR, 19 PR), DCR was 88% (0 CR, 19 PR, 9 SD). 26 patients are still receiving treatment and the longest exposure was 14 cycles. 10 (67%) of 15 patients with exon 19 deletions and 9 (53%) of 17 patients with L858R mutations achieved an objective response. 18 patients harbored aberrations in additional oncogenic drivers (PIK3CA or AKT1) and/or tumor suppressors (TP53, RB1, and PTEN) with an ORR of 72%. Upon analyses, AEs were observed in 97% (34/35) of patients. No Gr 5 AEs were reported. The most common Grade 3 AEs were hypertension (6 [ 17% ]), hypertriglyceridemia (2 [6% ]), diarrhea (1 [ 3% ]), hyperuricemia (1 [ 3% ]), hand and foot skin reaction (1 [3%]), asthenia (1 [3%]), and acute coronary syndrome (1 [ 3% ]). Hypertriglyceridemia was the only grade 4 AE (2 [ 6% ]). Three patients had to adjust treatment dosage. Conclusions: The strategy of anlotinib plus icotinib showed encouraging efficacy for previously untreated, EGFR-mutated advanced NSCLC patients. The combination was well tolerated and the AEs were manageable. The follow-up time is not sufficient and the PFS and OS outcomes need further evaluation. Clinical trial information: NCT03736837 .


2021 ◽  
Author(s):  
Xiaoling Shang ◽  
Jianxiang Shi ◽  
Xiaohui Wang ◽  
Chenglong Zhao ◽  
Haining Yu ◽  
...  

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 9030-9030
Author(s):  
Zhiyong He ◽  
Jinghui Lin ◽  
Yueming He ◽  
Jing Zhang ◽  
Dongyong Yang ◽  
...  

9030 Background: Currently,EGFR-TKIs are widely accepted as the standard treatment for EGFR- mutant advanced non-small-cell lung cancer (NSCLC); however, acquired resistance is inevitable. Combination therapy is considered as a strategy to overcome the resistance to EGFR-TKIs. Anlotinib, a novel multi-targeting, small-molecule TKI, has shown active to suppress tumor angiogenesis and growth. However, there is still a lack of evidence supporting the use of EGFR-TKIs in combination with anlotinib for the treatment of NSCLC until now. A multi-center, single-arm, phase II clinical trial was therefore designed to examine the efficacy and safety of EGFR-TKIs combined with anlotinib for treatment-naïve, advanced NSCLC patients, and unravel the possible mechanisms. Methods: This study was conducted in 14 research centers in Fujian, China. The main eligibility criteria were stage IV or relapsed nonsquamous NSCLC with EGFR mutations (exon 19 deletion,, and L858R), ECOG score 0-2,and age 20 to 75 years and no previous systemic treatment. Patients with asymptomatic brain metastases were admitted.Eligible patients were given gefitinib (250 mg QD) or icotinib (125 mg TID) in combination with anlotinib (10 mg per day, on days 1‒14; 21 days per cycle) until disease progression. The primary endpoint is progression-free survival (PFS) and safety, and the secondary endpoint is overall survival (OS), objective response rate (ORR) and disease control rate (DCR).Peripheral blood was sampled pre-treatment, once every two months during treatment and after disease progression, and T790M mutation was detected in plasma ctDNA using a droplet digital PCR (ddPCR) assay. Results: Of 60 patients enrolled (August 2, 2018 to May 28, 2020). As of February 1, 2021, 37 patients (61.7%) experienced PFS events and 10 (16.7%) died. The ORR was 78.3%, and the DCR was100%.Median PFS was 13.0 months (95%CI,10.7-15.3).The 5 most common treatment-related adverse events included rash (63.3%), fatigue (55.0%), hypertension (48.3%), diarrhea (33.3%) and hand-foot syndrome (30.0%), and grade 3 adverse events included hypertension (5.0%), rash (1.67%), hypertriglyceridemia (1.67%), vomiting (1.67%) and elevated ALT (1.67%); no grade 4 adverse events or drug-related deaths were observed. Peripheral blood samples were collected from 36 patients pre-treatment, and 30.6% were identified with low-frequency de novo T790M mutations, with the mutation-allele frequency (MAF) ranging from 0.01% to 0.28%. Conclusions: The combination of the first-generation EGFR-TKIs and anlotinib shows impressive ORR and DCR, and acceptable toxicity in treatment-naïve advanced NSCLC patients with activating EGFR mutations, and we observed a high proportion of patients harboring de novo EGFR T790M mutations in this study. Clinical trial information: NCT03720873.


2018 ◽  
Vol 13 (10) ◽  
pp. S586
Author(s):  
K. Hueniken ◽  
M. Hurry ◽  
S. Jiang ◽  
C. Labbe ◽  
M.C. Brown ◽  
...  

2010 ◽  
Author(s):  
Govindaraja Atikukke ◽  
Michele L. Cote ◽  
Ann G. Schwartz ◽  
Gadgeel Shirish ◽  
Ayman O. Soubani ◽  
...  

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 7072-7072 ◽  
Author(s):  
F. R. Hirsch ◽  
W. A. Franklin ◽  
J. McCoy ◽  
F. Cappuzzo ◽  
M. Varella-Garcia ◽  
...  

7072 Background: EGFR mutations are associated with better response and in some studies (mainly Asian) also with prolonged survival after gefitinib therapy in patients with advanced NSCLC. Although a number of mutations have been reported, most frequent are exon 19 or exon 21 mutations of the EGFR tyrosine kinase domain.Whether clinical outcomes differ by subtype of EGFR mutation has not been previously reported. Methods: Mutation analysis (as previously described) was performed in 157 of 204 patients with advanced NSCLC treated with gefitinib (250 mg or 500 mg) in 2 study cohorts (Italian study of Iressa Expanded Access Program and SWOG 0126). Fifty nanograms of genomic DNA was isolated from pretreatment tumors, amplified for EGFR exons 19 and 21 by touchdown hemi-nested polymerase chain reaction and sequenced in both sense and antisense directions. Results: EGFR mutations were found in 43 pts (27%). Overall, patients with EGFR mutations had a response rate of 39% versus 7% for those without (p ≤ 0.001), disease control rate of 52% versus 37% (p = 0.14), time to progression of 3 months in both groups and median survival of 13 months versus 11 months (p = 0.14). Patients with exon 19 mutations exclusively (N = 11) had better outcome than those with exon 21 mutations exclusively (N = 31), with response rates of 67% versus 20% (p = 0.02), median time to progression of 15 months versus 2 months, and median survival of 26 months versus 10 months. There was a difference in time to progression (11 months versus 3 months) and overall survival (median 26 months versus 11 months) between patients with and without exon 19 mutations, while no difference was apparent in these outcome measures in patients with and without exon 21 mutations. Sample size provided insufficient power for significance tests of differences in survival outcomes. Conclusions: Not all EGFR mutations are created equal. Mutations in exon 19 are more predictive of response and survival after gefitinib than exon 21 mutations. [Table: see text]


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e19166-e19166 ◽  
Author(s):  
Guanghui Gao ◽  
Shengxiang Ren ◽  
Aiwu Li ◽  
Yayi He ◽  
Xiaoxia Chen ◽  
...  

e19166 Background: The efficacy of comparing the EGFR-TKI with standard chemotherapy in the second-line treatment of advanced NSCLC with wide-type EGFR were still controversial. To derive a more precise estimation of the two regimens, a meta-analysis was performed. Methods: Medical databases and conference proceedings were searched for randomized controlled trials which compared EGFR-TKI (gefitinib or erlotinib) with standard second-line chemotherapy (docetaxel or pemetrexed) in patients with NSCLC. Endpoints were overall survival, progression-free survival and overall response. Results: Three eligible trials (INTEREST, TITAN and TAILOR) were identified. Lacking for data of overall survival of TAILOR trial, So we only make a preliminary meta-analysis for overall survival. The intention to treatment (ITT) analysis demonstrated that the patients receiving EGFR-TKI had a significantly shorter progression-free survival (PFS) than patients treated with chemotherapy (hazard ratio (HR) = 1.31; 95% confidence intervals (CI) = 1.10-1.56; P = 0.002). The overall survival (OS) and overall response rate (ORR) were coparable between this two groups (HR = 0.96; 95%CI = 0.77-1.19; P = 0.69; relative risk (RR) = 0.37; 95%CI = 0.09-1.54; P = 0.17). Conclusions: Although chemotherapy had a clear superiority in PFS as second-line treatment for patients without EGFR mutations compared with EGFR-TKI, OS and ORR were equal in this two regimens. The toxicity profiles might play an important role in the decision to choose EGFR-TKI or chemotherapy. These findings still need to be verified in larger confirmatory studies in future.


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