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M.R. Migliorino
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P1.06 - Poster Session with Presenters Present (ID 458)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Advanced NSCLC
- Presentations: 3
- Moderators:
- Coordinates: 12/05/2016, 14:30 - 15:45, Hall B (Poster Area)
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P1.06-005 - An International Cohort of Patients with Small Cell Lung Cancer after a Non-Small Cell Lung Carcinoma Oncogene or Non-Oncogene Addicted (ID 4531)
14:30 - 14:30 | Author(s): M.R. Migliorino
- Abstract
Background:
Phenotypic transformation from Non-small cell lung cancer (NSCLC) to small cell lung cancer (SCLC) is a resistance mechanism in tyrosine kinase inhibitors (TKIs) treated EGFR mutant tumors. SCLC is also however less frequently diagnosed in patients without EGFR mutations treated with chemotherapy. These transformations are rare and little is known about the clinical and therapeutic characteristics of these patients. In this study we describe and compare the characteristics of SCLC arising from mutant or non mutant NSCLC.
Methods:
We performed a multicentric retrospective collection (27 centers in France and Italy) of cases. Between 2005 and 2015, patients with stage III or IV NSCLC with a secondary transformation to SCLC with histological proof were included.
Results:
Forty seven cases of SCLC transformation were collected, 34 in EGFR mutant and 13 in non. Most of the patients (n=37, 82%) were stage IV, (n=27, 57%) female and (n=26, 76%) had an exon 19 mutation. The last treatment before transformation was a TKI in 23 (68%) cases in the mutant group and in 3 (23%) patients (erlotinib) in the non-mutant. Median time to SCLC transformation was 17 [IQR, 11-29] months in the mutant group and 26 [IQR 23-36] months in the other (p=0.03). Molecular analyses were not performed in the non mutant group, 25 (74%) had molecular analyses in the EGFR mutant. A driver mutation was identified in 22/25 (88%) patients: in most of the cases the same as the initial, 1 case of ALK fusion and 1 of PI3K mutation. Thirty patients (88%) received at least one line of treatment after transformation in the mutant group, in all cases a platinum-etoposide (P-E) chemotherapy. Median survival from initial diagnosis in the EGFR mutant group was significantly worse 28 [17-41] months vs 49 [36-118] months in the non EGFR mutant group (p=0.01). After transformation, the same tendency was observed with a median survival of 8 [3-12] months for the EGFR mutated patients vs 13 [6-15] months for the non EGFR mutated patients (p=0.06).
Conclusion:
SCLC that occurs in EGFR mutant treated by TKIs is more aggressive than classic SCLC, and differs on epidemiological characteristics. These transformed SCLC are not fully explained and we need to define the molecular characteristics of this cohort, before and after transformation and if funded the whole genome sequencing of the tumors to understand this TKIs mechanism of resistant.
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P1.06-017 - Observational Study on Prolonged Disease Stabilization in Advanced NSCLC EGFR WT/Unknown Patients Treated with Erlotinib in Second Line (ID 4998)
14:30 - 14:30 | Author(s): M.R. Migliorino
- Abstract
Background:
In advanced NSCLC, erlotinib treatment was shown to improve survival independently of EGFR status and induce high rates of prolonged stable disease (SD). It has previously been reported that, after second-/third-line erlotinib, PFS and OS are long-lasting and similar between patients with SD ≥8 months and those attaining partial/complete response (PR/CR). The present study investigated the clinical value of SD in a real-world setting of advanced NSCLC.
Methods:
This Italian multicenter observational study enrolled patients with stage IIIB-IV NSCLC on second-line erlotinib and wild-type/unknown EGFR mutational status, with SD, CR or PR per RECIST v1.1 lasting for ≥4 weeks. Patients were observed from the beginning of erlotinib for approximately 8 months or until death. Primary end-points were the rate and duration of SD (i.e. time interval from erlotinib start to the last evidence of SD by RECIST) or CR+PR. Secondary end-points were OS and PFS (i.e. time interval from the erlotininb start to the first evidence of progression), estimated by the Kaplan-Meier method and calculated by response duration or disease stabilization. Adverse events occurring during the observation period were also recorded.
Results:
At the cut-off date of 30/04/16, 144/172 (83.7%) enrolled patients were evaluable for response (mean age 69.1 years, 61.8% males). At the start of erlotinib treatment, 85.4% were non-smokers, 89.6% had an ECOG-PS of 0-1, and 84.7% had stage IV NSCLC (83.3% adenocarcinoma and 11.8% squamous cell carcinoma). Following second-line erlotinib, 82.6% (119/144) of patients achieved SD and 17.4% (25/144) PR. Notably, SD was maintained for ≥8 months in 27% (39/144) of cases. At the end of the observation period, 12 (8.3%) patients had deceased, none with SD ≥8 months. Median OS had not been reached by the entire population. According to SD duration, median OS was 4.3 months if <2 months, 6.8 if between 2 and 5 months, and not reached if ≥5 months or if PR. Median PFS was 9.0 months in the entire population, 8.7 among patients with SD and 10.8 with PR. According to SD duration, PFS was 1.4 if <2 months, 4.4 months if between 2 and 5 months, 7.5 if between 5 and 8 months and 10.5 if ≥8 months. No unexpected toxicities were observed.
Conclusion:
In advanced NSCLC, second-line erlotinib yielded a high rate of SD, lasting ≥8 months in 27% of cases, with PFS similar to PR patients and low mortality rate.
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P1.06-046 - Can We Better Manage Advanced NSCLC in the Elderly with the New Therapeutic Agents? Preliminary Analysis of a Real-Life Multicenter Study (ID 5814)
14:30 - 14:30 | Author(s): M.R. Migliorino
- Abstract
Background:
Systemic treatment of NSCLC has profoundly changed over the past years with novel therapeutic strategies recently implemented in clinical practice. Benefit of these novel agents in elderly patients (pts) is uncertain, given the paucity of prospective data in this population. Moreover, elderly pts are often undertreated, due to comorbidities and toxicity concerns. Therefore, we aimed to evaluate the access, safety and outcome with novel therapeutic agents in pts ≥ 70 years (yrs).
Methods:
We planned an observational study to retrospectively evaluate consecutive elderly patients (≥ 70 yrs) with metastatic NSCLC treated at 9 Italian Centers between January 2014 and December 2015. Data collected include clinical and pathological characteristics, treatment types, safety and outcome report.
Results:
220 patients with stage IV NSCLC were included in this preliminary analysis (53% IVa, 47% IVb). Median age was 74,5 (range 70-85) and 69% were male. 15% of pts aged 80 years or older. ECOG PS was 0, 1, 2 in 37%, 51% and 12% of pts, respectively. According to comprehensive geriatric assessment, 59% of pts were fit, 28% vulnerable and 13% frail. Histology was 23% squamous cell carcinoma, 72% non-squamous cell carcinoma and 5% NOS. EGFR mutation was diagnosed in 24% of cases; 1,4% and 1% of pts had ALK and ROS-1 translocations, respectively. 90% of pts received a systemic therapy: 48% a platinum doublet chemotherapy (CHT), 27% a mono-CHT, 25% an EGFR tyrosine kinase inhibitor (TKI). Only 1% of pts were treated with antiangiogenic drugs. Immunotherapy (IT) was administered in 16% of all treated pts. 7% of pts received only BSC. Second- and third-line treatment were given to 44% and 8% of pts, respectively. 51% of pts who received second line treatment and 60% of pts treated with a third line therapy had a novel therapeutic agent (II line TKI 20%, IT 31%; III line TKI 33%, IT 27%). 31% of pts were included in clinical trials. A dose reduction was reported in 41% of therapies and the discontinuation rate was 9%. Survival data are not mature at this time.
Conclusion:
Our data, albeit preliminary, suggest an evolution in the management of NSCLC in the elderly. The interesting activity and the good safety profile encourage the use of novel agents also in this setting of NSCLC. Adequate selection of elderly pts and personalized approach are still matters of debate. Use of adapted schedule and dose reduction could warrant a good compromise between safety and efficacy.
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P2.03b - Poster Session with Presenters Present (ID 465)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 12/06/2016, 14:30 - 15:45, Hall B (Poster Area)
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P2.03b-063 - Molecular Profiling in Advanced Non-Small-Cell Lung Cancer: Preliminary Data of an Italian Observational Prospective Study (ID 4529)
14:30 - 14:30 | Author(s): M.R. Migliorino
- Abstract
Background:
Molecular profiling of advanced non-small-cell lung cancer (NSCLC) is recommended according to patients’ histological and clinical features. Despite the existence of national guidelines, routine care is still heterogeneous. Aim of this observational study was to obtain prospectively a clinical practice picture of molecular testing and therapeutic choices in advanced NSCLC patients.
Methods:
Newly diagnosed metastatic or recurrent NSCLC patients enrolled in 38 Italian centres, from November 2014 to November 2015, have been included in the study. Baseline information were collected about molecular profiling performed and therapies.
Results:
A total of 1787 patients were enrolled (64% males, 36% females; median age 67 years-old; 22% never smokers, 31% current smokers, 47% former smokers; 75% adenocarcinoma, and 73% with PS ECOG 0 or 1). The 73.9% of diagnosis was histological, while 26.1% was cytological. 1382 (77%) patients were tested for one or more molecular analysis during the history of disease, for a total of 3532 molecular tests. Only 405 patients did not receive any molecular test. 32.3% of patients presented a genetic alteration: EGFR mutation was reported in 17.8% of cases (319/1787), ALK translocation in 8.8% (82/926), KRAS mutation in 31.9% (154/482), MET amplifications in 15.8% (10/63), BRAF mutations in 3.7% (9/241), ROS1 translocation in 4% (11/269), HER2 mutation in 3.3% (3/89) of cases and FGFR alteration was found in 3 cases (only 15 tested). Considering patients younger than 45 years, never smokers and females, an EGFR mutation was detected in 25.4%, 43.5% and 30.6%, respectively. While 15.6%, 9.5% and 6.3% were ALK rearranged, respectively. For patients receiving an EGFR tyrosine-kinase inhibitor as first-line treatment, among those whose data are evaluable (79.2%), the median interval from diagnosis to first-line was 35 days. EGFR mutated patients received first-line erlotinib, gefitinib and afatinib in 9.4%, 39.1% and 33.8% of cases, respectively. At time of analysis, ALK-rearranged patients received an ALK inhibitor (crizotinib, alectinib or ceritinib) as first and/or second-line in 71.9% of cases. 29.3% of all patients received a maintenance therapy, mainly with pemetrexed (91.2% of cases).
Conclusion:
Routine molecular assessing is properly performed according to the national guidelines. A selection bias in including only those patients performing molecular tests, may explain the high proportion of patients with a molecular alteration. The low number of patients tested for ALK could be partially related to the impossibility to prescribe Crizotinib in first- line. In more than 70% of cases EGFR mutated patients received gefitinib or afatinib as first-line treatment.
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P3.02c - Poster Session with Presenters Present (ID 472)
- Event: WCLC 2016
- Type: Poster Presenters Present
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:
- Coordinates: 12/07/2016, 14:30 - 15:45, Hall B (Poster Area)
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P3.02c-094 - Italian Nivolumab Advanced Squamous NSCLC Expanded Access Program: Efficacy and Safety in Patients with Brain Metastases (ID 5144)
14:30 - 14:30 | Author(s): M.R. Migliorino
- Abstract
Background:
The prognosis of NSCLC patients (pts) with brain metastases is still quite poor. These pts usually do not meet the inclusion criteria to be enrolled in clinical trials. Nivolumab Italian Expanded Access Program (EAP) allowed this subpopulation of pts to be included, providing the opportunity to evaluate safety and efficacy of nivolumab treatment in pts with brain metastases.
Methods:
upon physician written request, nivolumab was provided to pts who met the following inclusion criteria: aged ≥18 years, who had received a diagnosis of squamous NSCLC, and who had relapsed after a minimum of one prior systemic treatment for stage IIIB/stage IV squamous NSCLC. Nivolumab is administered intravenously at the dose of 3 mg/kg every 2 weeks for a maximum duration of 24 months. We describe efficacy and safety of nivolumab in pts who received at least one dose. Adverse events were monitored using Common Terminology Criteria for Adverse Events.
Results:
from our cohort of 372 patients diagnosed with squamous NSCLC, we report the results of 38 (10.2%) pts with treated and asymptomatic brain metastases. In these pts, with median follow-up of 4.5 months and median number of doses of 6 (range, 1–18), disease control rate was 47.3%, including 1 complete response, 6 partial responses and 11 stable diseases. Treatment beyond RECIST defined progression was allowed, under protocol defined circumstances, in 4 pts. Median progression-free survival was 5.5 months, and overall survival was 6.5 months (data lock of April 2016). Out of the 38 pts included, only 1 discontinued treatment due to AE (2.6%), whereas 21 pts (55.3%) discontinued treatment for non-toxicity related reasons.
Conclusion:
although preliminary, these results demonstrate efficacy of nivolumab in squamous NSCLC pts with brain metastases. Safety of nivolumab in these pts is consistent with previously reported data from clinical trials. These results suggest nivolumab could be beneficial in this subpopulation of pts with unfavourable prognosis.
