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F.L. Chen

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    OA03 - Immunotherapy Checkpoint Inhibitors in Advanced NSCLC (ID 367)

    • Event: WCLC 2016
    • Type: Oral Session
    • Track: Chemotherapy/Targeted Therapy/Immunotherapy
    • Presentations: 1
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      OA03.03 - JAVELIN Solid Tumor: Safety and Clinical Activity of Avelumab (Anti-PD-L1) as First-Line Treatment in Patients with Advanced NSCLC (Abstract under Embargo until December 5, 7:00 CET) (ID 3717)

      11:00 - 12:30  |  Author(s): F.L. Chen

      • Abstract
      • Presentation
      • Slides

      Avelumab* (MSB0010718C) is a fully human anti-PD-L1 IgG1 antibody that has shown antitumour activity in various malignancies. We report safety and clinical activity of avelumab as first-line therapy in a cohort of patients with non-small–cell lung cancer (NSCLC) from a phase 1b trial (NCT01772004).

      Patients with advanced NSCLC not previously treated systemically for metastatic or recurrent disease, without an activating EGFR mutation or ALK rearrangement, and not preselected for PD-L1 expression, received avelumab 10 mg/kg IV over 1 hour Q2W until progression, unacceptable toxicity, or study withdrawal. Objective response rate (ORR) and progression-free survival (PFS) were evaluated by RECIST v1.1. Adverse events (AEs) were graded by NCI-CTCAE v4.0.

      As of 23 Oct 2015, 145 patients had received avelumab (median 10 weeks of treatment; range 2-30) and were followed for a median of 13 weeks (range 0-31). Median age was 70 years (range 41-90), ECOG PS was 0 (31.0%) or 1 (69.0%), and tumour histology was adenocarcinoma (63.4%) or squamous (26.9%) in most patients. Eighty-two patients (56.6%) had a treatment-related (TR) AE; those occurring in ≥10% were infusion-related reaction (IRR; n=24, 16.6%) and fatigue (n=21, 14.5%). Thirteen patients (9.0%) had a grade ≥3 TRAE; only IRR and fatigue occurred in >1 patient (each n=3, 2.1%). Four patients (2.8%) had a potential immune-mediated TRAE, all grade 1-2 (pneumonitis n=3, 2.1%; hypothyroidism n=1, 0.7%). There were no treatment-related deaths. Among 75 patients with ≥3 months’ follow-up, unconfirmed ORR was 18.7% (95% CI: 10.6, 29.3) based on 1 complete response and 13 partial responses; 12 were ongoing. Thirty-four additional patients (45.3%) had stable disease as best response (disease control rate 64.0%). Updated analysis will be presented, including efficacy data with ≥3 months’ follow-up in all patients and PD-L1 analysis.

      First-line avelumab monotherapy showed clinical activity and was well-tolerated in patients with EGFR-wildtype/ALK-negative NSCLC unselected for PD-L1 expression. A phase 3 trial of avelumab vs platinum-doublet in first-line NSCLC is in progress. *Proposed nonproprietary name.

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