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J.R. Fischer



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    MA 03 - Chemotherapy (ID 651)

    • Event: WCLC 2017
    • Type: Mini Oral
    • Track: Advanced NSCLC
    • Presentations: 1
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      MA 03.01 - Nab-Paclitaxel ± CC-486 as Second-Line Treatment of Advanced NSCLC: Results from the ABOUND.2L+ Study (ID 8676)

      11:00 - 12:30  |  Author(s): J.R. Fischer

      • Abstract
      • Presentation
      • Slides

      Background:
      CC-486 (oral azacitidine) is an epigenetic modifier with potential effect as a priming agent for chemotherapy in patients with NSCLC. Outcomes of nab-paclitaxel+CC-486 vs nab-paclitaxel as second-line treatment of advanced NSCLC are reported.

      Method:
      Patients with advanced nonsquamous NSCLC and no more than 1 prior chemotherapy line (including platinum doublet combination) were randomized (1:1) to nab-paclitaxel 100 mg/m[2] d8, 15 + CC-486 200 mg qd d1-14 or nab-paclitaxel 100 mg/m[2] d1, 8, both administered q3w until progressive disease/unacceptable toxicity. Primary endpoint was PFS. Secondary endpoints: DCR, ORR, OS, and safety. QoL, an exploratory endpoint, was assessed on d1 of each cycle.

      Result:
      The nab-paclitaxel+CC-486 arm was discontinued in October 2016 due to demonstrated futility vs nab-paclitaxel monotherapy upon completion of a protocol-specified interim analysis. Overall, 161 patients were randomized (nab-paclitaxel+CC-486, 81; nab-paclitaxel, 80). Baseline characteristics were balanced between arms. The median number of cycles was 4 for each arm, and the median nab-paclitaxel cumulative dose was 600 mg/m[2] and 800 mg/m[2] in the nab-paclitaxel+CC-486 and nab-paclitaxel arms, respectively. Rates of grade 3/4 (G3/4) treatment-emergent AEs were 59.5% and 54.4% for the combination and monotherapy arms, respectively. The most frequent hematologic G3/4 AEs were neutropenia (16.5% vs 10.1%) and anemia (1.3% vs 7.6%). G3/4 peripheral neuropathy was reported in 2.5% and 7.6% of patients, respectively. The addition of CC-486 to nab-paclitaxel did not improve ORR, DCR, PFS, or OS (Table). When assessed by Lung Cancer Symptom Scale, nab-paclitaxel monotherapy was associated with improvement in the global QoL, average symptom burden index, and lung cancer symptoms except for hemoptysis.

      Conclusion:
      The addition of CC-486 to nab-paclitaxel did not clinically benefit patients with previously treated NSCLC. However, single-agent nab-paclitaxel appears to be a promising therapy based on safety, efficacy, and QoL data. Updated efficacy and safety data will be presented. NCT02250326

      nab-Paclitaxel + CC-486 n = 81 nab-Paclitaxel n = 80
      Median PFS, months 3.2 4.2
      HR (95% CI) 1.3 (0.9 - 2.0)
      1-year PFS, % 4.1 18.3
      Median OS, months 8.4 12.7
      HR (95% CI) 1.4 (0.88 - 2.31)
      1-year OS, % 39.2 54.3
      ORR, n (%)[a] 11 (13.6) 11 (13.8)
      Response rate ratio (95% CI) 0.99 (0.45 - 2.15)
      CR PR SD PD DCR (≥ SD) 0 11 (13.6) 41 (50.6) 22 (27.2) 52 (64.2) 0 11 (13.8) 43 (53.8) 19 (23.8) 54 (67.5)
      CR, complete response; DCR, disease control rate; HR, hazard ratio; ORR, overall response rate; OS, overall survival; PD, progressive disease; PFS, progression-free survival; PR, partial response; SD, stable disease. [a] Response rate was based on the intent-to-treat population; however, 14 patients did not have a response assessment.


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    MA 10 - Immunotherapy I (ID 664)

    • Event: WCLC 2017
    • Type: Mini Oral
    • Track: Immunology and Immunotherapy
    • Presentations: 1
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      MA 10.02 - Nab-Paclitaxel + Durvalumab as Second- or Third-Line Treatment of Advanced NSCLC: Results from ABOUND.2L+ (ID 8682)

      11:00 - 12:30  |  Author(s): J.R. Fischer

      • Abstract
      • Presentation
      • Slides

      Background:
      Chemotherapy may enhance immunotherapeutic effects by causing tumor antigen release, which primes the immune system to kill tumor cells. Early clinical data on nab-paclitaxel + carboplatin in combination with immune checkpoint inhibitors (ICI) demonstrated promising activity without compounding toxicities in patients with non-small cell lung cancer (NSCLC). ABOUND.2L+ evaluated nab-paclitaxel–based regimens in previously treated patients with advanced NSCLC. Here we report the efficacy and safety of nab-paclitaxel + durvalumab as second/third-line treatment.

      Method:
      Patients with advanced NSCLC were assigned to receive second/third-line (immunotherapy allowed in prior line, including platinum doublet combination) nab-paclitaxel 100 mg/m[2] on days 1 and 8 + durvalumab 1125 mg on day 15, in 21-day cycles, administered until unacceptable toxicity/progression per immune-related RECIST v1.1. Primary endpoint is progression-free survival (PFS). Secondary endpoints are overall survival (OS), overall response rate (ORR), disease control rate (DCR), and safety.

      Result:
      Seventy-nine patients were enrolled. Median age was 63 years, 68% of patients were male, 23% had Eastern Cooperative Oncology Group performance status of 0, and 70% had nonsquamous NSCLC; 11% of patients received prior ICIs. Median PFS (Table) and OS were 4.5 (3.4-5.8) months and NE (7.3-NE). ORR was 27% (1 complete response) and DCR was 71%. Grade 3/4 treatment-emergent adverse events of special interest occurring in ≥ 5% of patients included neutropenia (6%) and dyspnea (5%); grade 3/4 peripheral neuropathy and anemia each occurred in 4% of patients. Median treatment duration was 24 weeks; median number of treatment cycles was 7. For nab-paclitaxel and durvalumab, median dose intensities were 59.05 mg/m[2]/week and 326.61 mg/week, respectively; median percentages of per-protocol dose were 88.58% and 87.10%.

      Conclusion:
      The combination of durvalumab with nab-paclitaxel demonstrated antitumor activity with manageable toxicity in the second/third-line setting. Further details will be presented. NCT02250326

      Nab-P Durva Median PFS (range), months
      Overall (n = 79) 4.5 (3.4-5.8)
      ICI pretreated (n = 9)[a] ICI naive (n = 69)[a] 6.9 (1.4-NE) 4.4 (3.0-5.7)
      Squamous (n = 23)[a] Nonsquamous (n = 55)[a] 5.9 (3.0-7.8) 4.2 (2.9-5.7)
      ICI, immune checkpoint inhibitor; NE, not estimable; PFS, progression-free survival. [a] Data pending for 1 patient.


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