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I. Albert



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    OA23 - EGFR Targeted Therapies in Advanced NSCLC (ID 410)

    • Event: WCLC 2016
    • Type: Oral Session
    • Track: Advanced NSCLC
    • Presentations: 1
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      OA23.03 - Second-Line Afatinib for Advanced Squamous Cell Carcinoma of the Lung: Analysis of Afatinib Long-Term Responders in the Phase III LUX-Lung 8 Trial (ID 4711)

      14:40 - 14:50  |  Author(s): I. Albert

      • Abstract
      • Presentation
      • Slides

      Background:
      Squamous cell carcinoma (SCC) of the lung is a genetically complex and difficult-to-treat cancer. In LUX-Lung 8, afatinib (40mg/day) significantly improved OS (median 7.9 vs 6.8 months, HR=0.81 [95% CI, 0.69‒0.95], p=0.008), PFS (2.6 vs 1.9 months, HR=0.81 [0.69‒0.96], p=0.010) and DCR versus erlotinib (150mg/day) in patients with relapsed/refractory SCC of the lung (n=795). Notably, 12-month (36 vs 28%; p=0.016) and 18-month survival (22 vs 14%; p=0.016) was significantly higher with afatinib than erlotinib, indicating that some patients derive prolonged benefit from afatinib. Here, we present post-hoc analysis of baseline characteristics and efficacy/safety of afatinib in long-term responders (treatment for ≥12 months). Hypothesis-generating analysis of archived tumor samples and blood serum was undertaken to identify possible molecular/clinical biomarkers.

      Methods:
      Tumor samples were retrospectively analyzed using FoundationOne[TM] next-generation sequencing (NGS); EGFR expression was determined by immunohistochemistry. Pre-treatment serum samples were analyzed with VeriStrat[®], a MALDI-TOF mass spectrometry test, and classified as VeriStrat-Good or VeriStrat-Poor-risk.

      Results:
      15/398 patients treated with afatinib were long-term responders. Median duration of treatment was 16.6 months (range: 12.3‒25.8). Patient characteristics were similar to the overall dataset (median age: 65 years [range: 54‒81]; male: 80.0%; Asian: 13.3%; ECOG 0/1: 40.0%/60.0%; best response to chemotherapy CR or PR/SD: 53.3%/46.7%; current and ex-smokers: 80.0%). Median PFS was 16.2 months (range: 2.8‒24.0); median OS was 23.1 months (range: 12.9‒31.5). The most common treatment-related AEs (all grade/grade 3) were: diarrhea (73.3%/6.7%); rash/acne (66.7%/6.7%); stomatitis (13%/7%). AEs generally occurred soon after treatment onset (median onset, days [range]: diarrhea 11 [5‒48]; rash/acne 17 [9‒107]; stomatitis 15 [11‒19]). Four patients required a dose reduction to 30mg/day due to treatment-related AEs (diarrhea, rash, stomatitis, diarrhea/rash). NGS was undertaken in 9 patients and details will be presented at the meeting. Genomic aberrations in the ErbB/FGF gene families were identified in 44.4%/55.6% of long-term responders (overall dataset: 29.4%/58.0%). Of 14 patients assessed by VeriStrat, 85.7% were VeriStrat-Good (overall dataset: 61.6%). Immunohistochemistry data was available for two patients; one overexpressed EGFR (≥10% positive cells; H-score ≥200)

      Conclusion:
      Baseline characteristics of long-term responders to afatinib were similar to the overall dataset. In this sub-group, afatinib conferred a survival benefit of nearly 2 years. Afatinib was well tolerated with predictable and transient AEs that occurred soon after treatment onset. The dataset was too small to identify any clear NGS/VeriStrat predictive signals. Further studies are required to predict long-term response to afatinib.

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    P2.06 - Poster Session with Presenters Present (ID 467)

    • Event: WCLC 2016
    • Type: Poster Presenters Present
    • Track: Scientific Co-Operation/Research Groups (Clinical Trials in Progress should be submitted in this category)
    • Presentations: 1
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      P2.06-024 - Tedopi vs Standard Treatment as 2nd or 3rd Line in HLA-A2 Positive Advanced NSCLC Patients in a Phase 3, Randomized Trial: ATALANTE-1 (ID 5329)

      14:30 - 14:30  |  Author(s): I. Albert

      • Abstract

      Background:
      HLA-A2 is expressed in 40 to 50% of NSCLC patients. TEDOPI is a combination of neoepitopes that generates cytotoxic T lymphocytes responses. It consists of nine HLA-A2 supertype binding epitopes covering five tumor-associated antigens overexpressed in advanced NSCLC and the universal helper pan-DR epitope. In a phase II trial (NCT00104780, Barve et al. JCO 2008), TEDOPI showed a promising median overall survival of 17.3 months with a manageable safety profile in pre-treated HLA-A2 positive patients with advanced NSCLC. ATALANTE-1 (NCT02654587) is a randomized, open-label, phase 3 study comparing the efficacy and safety of TEDOPI with standard treatment in HLA-A2 positive patients with advanced NSCLC, as second- or third-line therapy.

      Methods:
      Section not applicable

      Results:
      Trial design: Patients with advanced NSCLC without EGFR-sensitizing mutations or ALK rearrangements, with progressive disease to first-line platinum-based chemotherapy or second-line immune checkpoint inhibitors (IC) are eligible if they have HLA-A2 positivity and ECOG PS 0-1. Treated and asymptomatic brain metastases are allowed. Patients are randomized 1:1 to receive 1 ml TEDOPI subcutaneously Q3W for 6 cycles, then every two months for the reminder of the year and finally every three months or standard treatment with: 75 mg/m[2] docetaxel Q3W or 500 mg/m[2] pemetrexed Q3W (in non-squamous histology and pemetrexed-naïve patients). In both arms, treatment continues until progression, intolerable toxicity, consent withdrawal, or investigator decision. In TEDOPI arm, treatment may continue beyond initial radiographic disease progression in case of clinical benefit. Randomisation is stratified by histology (squamous vs. non-squamous), initial response to first-line chemotherapy (partial or complete response vs. stabilization or progression), and previous treatment with IC (yes vs. no). Tumor assessment is performed every 6 weeks and adverse events are collected throughout the study and for 60 days and 90 days thereafter and graded per NCI CTCAE v4.0. Archival biopsies samples are required for assessing PD-L1 status (IHC22C3 pharmDx from Dako). Primary endpoint is overall survival; and secondary are progression free survival based on RECIST 1.1 criteria, objective response rate, disease control rate, duration of response, and quality of life measured by QLQ-C30 and QLQ-LC13 global scores. This is a superiority study with a hazard ratio of 0.7391, two-sided alpha 5% and power 80%, after 356 events are observed over 500 patients. The first patient was enrolled on 25th January 2016. Enrolment is ongoing in Europe and the US. Clinical trial identification: NCT02654587 Legal entity responsible for the study & Funding: OSE Immunotherapeutics, France

      Conclusion:
      Section not applicable