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Judith Raimbourg



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    OA05 - Clinical Trials in IO (ID 899)

    • Event: WCLC 2018
    • Type: Oral Abstract Session
    • Track: Advanced NSCLC
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/24/2018, 13:30 - 15:00, Room 106
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      OA05.06 - CheckMate 227: Patient-Reported Outcomes of First-Line Nivolumab + Ipilimumab in High Tumor Mutational Burden Advanced NSCLC (ID 13450)

      14:25 - 14:35  |  Author(s): Judith Raimbourg

      • Abstract
      • Presentation
      • Slides

      Background

      The randomized, open-label, multipart phase 3 study CheckMate 227 (NCT02477826) demonstrated a significant progression-free survival benefit (co-primary endpoint) with first-line nivolumab+ipilimumab versus histology-based, platinum-doublet chemotherapy in patients with advanced non-small cell lung cancer (NSCLC) and high tumor mutational burden (TMB; ≥10 mutations/Mb). Patient-reported outcomes (PROs) for this population within CheckMate 227 are presented.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      Eligible chemotherapy-naïve patients had stage IV or recurrent NSCLC, ECOG performance status 0−1, and no known sensitizing EGFR/ALK alterations. PROs were assessed as an exploratory endpoint; this analysis included patients with high TMB randomized to nivolumab+ipilimumab or chemotherapy; specific outcomes included proportion of patients with disease-related symptom deterioration by 12 weeks and time to deterioration in symptoms (by Lung Cancer Symptom Scale [LCSS] Average Symptom Burden Index [ASBI]), and assessment of quality of life and overall health status (by EuroQoL-5 Dimension [EQ-5D] utility index [UI] and visual analog scale [VAS]). PROs were evaluated each cycle (Q2W, nivolumab+ipilimumab; Q3W, chemotherapy) for the first 6 months, every 6 weeks thereafter during treatment, and at follow-up visits 1/2. EQ-5D was also assessed during survival follow-up.

      4c3880bb027f159e801041b1021e88e8 Result

      PRO completion rates were ~90% at baseline and >80% for nearly all on-treatment assessments. Among patients with high TMB, fewer patients in the nivolumab+ipilimumab (n=139) versus chemotherapy (n=160) groups reported symptom deterioration by week 12, irrespective of whether they were still on therapy or had discontinued (22.3% versus 35.0%; absolute risk reduction: 12.7% [95% CI: 2.4–22.5]). Time to first deterioration (TTD) using common assessment time points (on/off treatment) was delayed with nivolumab+ipilimumab versus chemotherapy for the LCSS ASBI (hazard ratio [HR]: 0.40; 95% CI: 0.26–0.63) and 3-Item Global Index (3-IGI; HR: 0.56; 95% CI: 0.38–0.82). The estimated benefit in TTD generally favored nivolumab+ipilimumab for individual symptoms in the ASBI and each item in the 3-IGI (HRs: 0.48–0.74), except for hemoptysis (HR: 1.20), which exhibited very low burden; an advantage for nivolumab+ipilimumab was also seen in the EQ-5D VAS (HR: 0.62; 95% CI: 0.42–0.92) and UI (HR: 0.50; 95% CI: 0.34–0.73). Mean changes from baseline with nivolumab+ipilimumab showed early and clinically meaningful improvements in LCSS ASBI/3-IGI and EQ-5D VAS/UI; for patients treated with chemotherapy, symptoms and quality of life remained stable (LCSS ASBI/3-IGI, EQ-5D UI) or improved following completion of chemotherapy (EQ-5D VAS).

      8eea62084ca7e541d918e823422bd82e Conclusion

      Nivolumab+ipilimumab demonstrated early and sustained improvements in health-related quality of life versus chemotherapy in patients with advanced NSCLC and high TMB.

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    P3.03 - Biology (Not CME Accredited Session) (ID 969)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/26/2018, 12:00 - 13:30, Exhibit Hall
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      P3.03-27 - Somatic BRCA1/2 Mutations in Advanced NSCLC Patients: Description of a Sub-Population from the Ongoing Unicancer SAFIR02-Lung / IFCT-1301 Trial (ID 13332)

      12:00 - 13:30  |  Author(s): Judith Raimbourg

      • Abstract
      • Slides

      Background

      Molecular profiling is considered standard of care in advanced NSCLC. Identification of druggable molecular alterations may enhance the percentage of patients suitable for personalized treatment.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      From 04/2014 to 03/2017, 602 newly diagnosed,advanced NSCLC patients (pts) were enrolled in SAFIR02-Lung trial (NCT02117167). Molecular profile provided information on copy number alterations and mutations on 71 oncogenes and tumor suppressor genes. The profile was performed for 420 pts (70%) on archival tissue or frozen tissue collected from a new biopsy performed before the 3rd cycle (tissue or liquid) of chemotherapy. The frequency of BRCA mutation (mut) was assessed and clinicopathologic data collected. A homologous recombinant deficiency (HRD) score was performed on the copy number variations (CNV) data and the germline status was based on blood analysis. The BRCAshare database was the reference for the variants classification.

      4c3880bb027f159e801041b1021e88e8 Result

      18 pts were identified with BRCA alterations. BRCA variants of unknown significance were detected in 11 pts (2.6%). Response to chemotherapy according to RECIST 1.1 by investigator was: 6 stable disease (SD), 1 partial response, and 4 progressive disease (PD). CNV profile was evaluable for HRD in 6 out of 11 pts, with 50% positive.

      Seven pts (1.7%) were identified with deleterious BRCA-mut. 2 pts (0.5%) harboured germline BRCA2-mut (1 with breast cancer familiar history). Both pts had SD to chemotherapy. Somatic BRCA-mut was identified in 5 pts (1.2%, 2 BRCA1- and 3 BRCA2-mut). All were male, 100% adenocarcinoma, 75% smokers of 40 pack/year, 1 pt with familial cancer history, and 80% of pts had bone metastases. Response to chemotherapy was: 4 SD, and 1 PD. Three of 7 corresponding CNV profiles were evaluable for HRD score analysis with 100% positive.

      N=420

      BRCA alterations (N=18)

      BRCA VUS

      N=11

      BRCA deleterious

      N=7

      Somatic

      6

      5

      Germline

      5

      2

      HRD positive- Somatic

      Germline

      3/6*

      2

      1

      3/3*

      3

      0

      VUS: variants of unknown significance

      *Amongst patients with available samples for analysis

      8eea62084ca7e541d918e823422bd82e Conclusion

      Pathogenic BRCA1/2 mutations occur in 1.7% of advanced NSCLC with 71% of somatic mutations suggesting its value for exploring new therapeutic strategies in this population

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