RAS mutations and their correlation with survival of patients with advanced pancreatic adenocarcinoma.

2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 325-325
Author(s):  
Thiago Lins Almeida ◽  
Jessica Ribeiro Gomes ◽  
Marcel Cerqueira Cesar Machado ◽  
Antonio C. Buzaid ◽  
Fernando C. Maluf
Keyword(s):  
Pancreatic Adenocarcinoma ◽  
Predictive Factor ◽  
Locally Advanced ◽  
Growth Factor Receptor ◽  
Progression Free Survival ◽  
Prognostic Impact ◽  
Free Survival ◽  
First Line Therapy ◽  
Ras Status ◽  
Epidermal Growth

325 Background: The prognosis of pancreatic adenocarcinoma (PA) remains poor despite FOLFIRINOX and nab-paclitaxel-gemcitabine based chemotherapy. The epidermal growth factor receptor (EGFR) has a major role in pancreatic cancer carcinogenesis.The RAS status showed to be a predictive factor for response to anti-EGFR therapy in colon cancer. We aim to analyze the K-RAS and N-RAS status in PA and its prognostic impact. Methods: Retrospective analysis included 24 patients with metastatic (67%) or locally advanced (29%) PA at diagnosis (AEMOC, Brazil). K-RAS and N-RAS profile were performed by polymerase chain reaction and bidirectional sequencing (codons 12, 13, 61, 117, 146). The results were then analyzed in regards to overall survival (OS) and progression-free survival (PFS) in PA. Results: The sample showed: median age of 63 years (28-86), 62.5% male, 45.8% smoker, head site (67%), ductal (68%), and mild differentiation features (45%). The first-line therapy was FOLFIRINOX (62.5%) and gemcitabine (33.3%). The median PFS and OS were 6.5 and 13 months (mo), respectively. Nineteen patients (79.1%) presented mutation in K-RAS: four c.35G>A (G12D), four c.34G>C (G12R), four c.35G>T (G12V), three c.35G>C (G12A), one c.437C>T (A146V), and one c.34G>T (G12C). Mutation in N-RAS (c.38G>A (G13D) was detected in only one patient (4%). The only independent factor for survival was K-RAS status: the c.35G>A (G12D) polymorphism yielded worse PFS and OS when compared to non-c.35G>A (G12D) mutation: 3 vs 7 mo [HR 0.25, 95% CI, (0.04–1.63)] for PFS (p<0,0043) and 3.5 vs13 mo [HR 0.17, 95% CI, 0.01-1.58)] for OS (p<0,0001), respectively. Conclusions: K-RAS was the only prognostic factor for PFS and OS, with the polymorphism c.35G>A (G12D) being related to a worse prognostic. Further studies are necessary to better evaluate whether K-RAS and N-RAS status is prognostic and/or predictive factor.

scholarly journals Efficacy of Osimertinib in NSCLC Harboring Uncommon EGFR L861Q and Concurrent Mutations: Case Report and Literature Review

2021 ◽  
Vol 11 ◽  
Author(s):  
Ruiting Lin ◽  
Ruilian Chen ◽  
Zhiqiang Chen ◽  
Leihao Hu ◽  
Wei Guo ◽  
...  
Keyword(s):  
Kinase Inhibitors ◽  
Growth Factor Receptor ◽  
Progression Free Survival ◽  
Free Survival ◽  
First Line Therapy ◽  
Epidermal Growth ◽  
Good Treatment Option ◽  
Nsclc Patients ◽  
First And Second Generation ◽  
Egfr Tkis

The efficacy of first-and second-generation epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) in NSCLC patients with the EGFR L861Q mutation has been studied previously. However, there is little evidence on the efficacy of osimertinib in NSCLC patients with uncommon mutations. Here, we report the case of a 68-year-old man with advanced NSCLC with concurrent EGFR L861Q mutation as well as TP53 and RB1 mutations. The patient was treated with osimertinib as first-line therapy and achieved a remarkable progression-free survival of 15 months. His symptoms were significantly alleviated and the dose was well tolerated. The findings of the present study indicate that osimertinib might be a good treatment option for NSCLC patients with the L861Q mutation.

scholarly journals Better Progression-Free Survival in Elderly Patients with Stage IV Lung Adenocarcinoma Harboring Uncommon Epidermal Growth Factor Receptor Mutations Treated with the First-line Tyrosine Kinase Inhibitors

Cancers ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 434 ◽  
Author(s):  
Ming-Ju Tsai ◽  
Jen-Yu Hung ◽  
Mei-Hsuan Lee ◽  
Chia-Yu Kuo ◽  
Yu-Chen Tsai ◽  
...  
Keyword(s):  
Lung Adenocarcinoma ◽  
Kinase Inhibitors ◽  
Growth Factor Receptor ◽  
Stage Iv ◽  
Progression Free Survival ◽  
Egfr Mutations ◽  
First Line ◽  
Free Survival ◽  
Younger Patients ◽  
Epidermal Growth

Patients with lung adenocarcinoma harboring common epidermal growth factor receptor (EGFR) mutations usually have a good response rate (RR) and longer progression-free survival (PFS) to EGFR tyrosine kinase inhibitors (TKIs). However, the treatment efficacy to uncommon EGFR mutations remains controversial. We, therefore, performed a retrospective study, screening 2958 patients. A total of 67 patients with lung adenocarcinoma harboring uncommon EGFR mutations were enrolled and 57 patients with stage IV diseases receiving a first-line EGFR TKI were included for further analyses. The patients were classified into 27 (47%) “a single sensitizing uncommon mutation”, 7 (12%) “multiple sensitizing mutations”, 5 (9%) “a sensitizing mutation and a resistant uncommon mutation”, and 18 (32%) “other resistant uncommon mutations”. No significant difference was noted in PFS or overall survival (OS) between groups. Patients receiving different first-line EGFR TKIs had similar PFS and OS. The elder patients had a significantly poorer performance status than the younger patients but a significantly longer PFS than the younger patients (median PFS: 10.5 vs. 5.5 months, p = 0.0320). In conclusion, this is the first study to identify that elderly patients with stage IV lung adenocarcinoma harboring uncommon EGFR mutation might have a longer PFS. Large-scale prospective studies are mandatory to prove our findings.

EVERSUN: A phase II trial of everolimus alternating with sunitinib as first-line therapy for advanced renal cell carcinoma (RCC) (ANZUP trial 0901).

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. TPS4681-TPS4681 ◽  
Author(s):  
Ian D. Davis ◽  
Val Gebski ◽  
Mark D. Chatfield ◽  
Peter S. Grimison ◽  
George Kannourakis ◽  
...  
Keyword(s):  
Disease Progression ◽  
Phase Ii ◽  
Prognostic Score ◽  
Single Agent ◽  
Locally Advanced ◽  
Progression Free Survival ◽  
First Line ◽  
Free Survival ◽  
First Line Therapy ◽  
Line Therapy

TPS4681 Background: Treatment of RCC has improved due to better understanding of its biology. New targeted therapies have improved time to progression and overall survival but the optimal sequencing of agents is unknown. Currently drugs are given sequentially, usually starting with sunitinib and often followed by an mTOR inhibitor or another VEGFR-targeted therapy, but resistance to both drugs eventually occurs probably due to host adaptive responses. We hypothesize that resistance might be delayed by planned alternation of treatments. Methods: EVERSUN is a single-arm, two-stage, multicenter, phase II clinical trial aiming to determine the activity and safety of an alternating regimen of two therapies with different targets (sunitinib and everolimus) in patients with advanced RCC. Key eligibility criteria: RCC with a clear cell component; metastatic or locally advanced disease not suitable for resection; ECOG performance status 0-1; low or intermediate MSKCC prognostic score. The primary endpoint is the status of being alive and progression-free (RECIST 1.1) 6 months after registration. Target accrual of 55 subjects gives 95% power and 95% confidence to distinguish between 6-month progression free survival rates of 64% or lower vs 84% or higher using a Simon 2-stage minimax design. The criteria for further evaluation come from the pivotal trial of single agent sunitinib as first line therapy for RCC, in which the 6-month progression free survival rate was 74%. Trial treatment is administered in 12-week (wk) cycles consisting of 4 wks of sunitinib (50 mg daily) followed by 2 wks rest, followed by 5 wks of everolimus (10 mg daily) followed by 1 wk rest. Disease progression is interpreted as failure of the most recent drug taken. Participants who stop one drug because of toxicity or disease progression, on or before the 6 month assessment, will continue the other drug until subsequent progression or prohibitive toxicity on the second drug. EVERSUN is an ANZUP Cancer Trials Group Ltd. trial coordinated by the NHMRC Clinical Trials Centre. Accrual commenced in September 2010 with 38/55 participants recruited as of the 31-Jan-12 from 17 Australian sites (ACTRN12609000643279).

scholarly journals Immunologic Escape After Prolonged Progression-Free Survival With Epidermal Growth Factor Receptor Variant III Peptide Vaccination in Patients With Newly Diagnosed Glioblastoma

2010 ◽  
Vol 28 (31) ◽  
pp. 4722-4729 ◽  
Author(s):  
John H. Sampson ◽  
Amy B. Heimberger ◽  
Gary E. Archer ◽  
Kenneth D. Aldape ◽  
Allan H. Friedman ◽  
...  
Keyword(s):  
Epidermal Growth Factor Receptor ◽  
Growth Factor ◽  
Epidermal Growth Factor ◽  
Growth Factor Receptor ◽  
Progression Free Survival ◽  
Phase Iii ◽  
Delayed Type Hypersensitivity ◽  
Newly Diagnosed ◽  
Free Survival ◽  
Epidermal Growth

Purpose Immunologic targeting of tumor-specific gene mutations may allow precise eradication of neoplastic cells without toxicity. Epidermal growth factor receptor variant III (EGFRvIII) is a constitutively activated and immunogenic mutation not expressed in normal tissues but widely expressed in glioblastoma multiforme (GBM) and other neoplasms. Patients and Methods A phase II, multicenter trial was undertaken to assess the immunogenicity of an EGFRvIII-targeted peptide vaccine and to estimate the progression-free survival (PFS) and overall survival (OS) of vaccinated patients with newly diagnosed EGFRvIII-expressing GBM with minimal residual disease. Intradermal vaccinations were given until toxicity or tumor progression was observed. Sample size was calculated to differentiate between PFS rates of 20% and 40% 6 months after vaccination. Results There were no symptomatic autoimmune reactions. The 6-month PFS rate after vaccination was 67% (95% CI, 40% to 83%) and after diagnosis was 94% (95% CI, 67% to 99%; n = 18). The median OS was 26.0 months (95% CI, 21.0 to 47.7 months). After adjustment for age and Karnofsky performance status, the OS of vaccinated patients was greater than that observed in a control group matched for eligibility criteria, prognostic factors, and temozolomide treatment (hazard ratio, 5.3; P = .0013; n = 17). The development of specific antibody (P = .025) or delayed-type hypersensitivity (P = .03) responses to EGFRvIII had a significant effect on OS. At recurrence, 82% (95% CI, 48% to 97%) of patients had lost EGFRvIII expression (P < .001). Conclusion EGFRvIII-targeted vaccination in patients with GBM warrants investigation in a phase III, randomized trial.

Erlotinibversuscarboplatin and paclitaxel in advanced lepidic adenocarcinoma: IFCT-0504

2015 ◽  
Vol 46 (5) ◽  
pp. 1440-1450 ◽  
Author(s):  
Jacques Cadranel ◽  
Radj Gervais ◽  
Patrick Merle ◽  
Denis Moro-Sibilot ◽  
Virginie Westeel ◽  
...  
Keyword(s):  
Disease Control ◽  
Dominant Role ◽  
Growth Factor Receptor ◽  
Progression Free Survival ◽  
Primary Objective ◽  
First Line ◽  
First Line Therapy ◽  
Epidermal Growth ◽  
Progression Risk ◽  
Pathological Subtypes

The IFCT-0504 phase II trial evaluated the efficacy of erlotinibversuscarboplatin–paclitaxel (CP) as first-line treatment in 130 cases of advanced lepidic-predominant adenocarcinoma (ADC).The primary objective of the study was treatment efficacy, evaluated based on an end-point of disease control at 16 weeks.The primary objective was met, with a disease control in 35 (53%) out of 66 patients treated with CP and in 25 (39.1%) out of 64 patients treated with erlotinib. Median progression-free survival (PFS) for the total population was 3.6 months. The disease control rate did not differ between either the therapeutic arms or pathological subtypes, whereas there was a strong interaction between treatment arms and tumour pathological subtypes for PFS (p=0.009). Mucinous tumour patients treated with erlotinib exhibited an increased progression risk (hazard ratio 3.4, 95% CI 1.7–6.5; p≤0.001). The PFS for nonmucinous tumour patients was similar in both arms. Median overall survival was 20.1 months and did not differ between therapeutic arms. These findings were not further elucidated by molecular analyses and the toxicity profiles were as expected.Our study demonstrated the dominant role of CP alongside erlotinib in the management of advanced lepidic ADC. Based on these findings, erlotinib should not be administered in first-line therapy to patients with lepidic ADC in the absence of an epidermal growth factor receptor mutation.

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