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L. Villaruz



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    P2.03a - Poster Session with Presenters Present (ID 464)

    • Event: WCLC 2016
    • Type: Poster Presenters Present
    • Track: Advanced NSCLC
    • Presentations: 1
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      P2.03a-040 - Safety and Efficacy of Nab-Paclitaxel for 2nd Line Treatment of Elderly Patients with Stage IV Non-Small Cell Lung Cancer (ID 4209)

      14:30 - 14:30  |  Author(s): L. Villaruz

      • Abstract

      Background:
      Retrospective analyses suggest benefit to 2[nd] line therapy in the fit elderly, but prospective data are lacking. Subgroup analysis of a phase III study of carboplatin and nab-paclitaxel for 1[st] line treatment of NSCLC showed superior survival in elderly patients.

      Methods:
      This is a phase II study for patients > 70 years of age with progression on a non-taxane 1[st] line doublet. Nab-paclitaxel 100mg/m[2] is administered intravenously, 3/4 weeks per cycle until progressive disease or intolerance. The primary endpoint is occurrence of ≥grade 3 treatment-related toxicities after 6 cycles or within 3 weeks if early treatment discontinuation occurred. Null hypothesis is a rate of 60% and alternative hypothesis is < 40%.

      Results:
      As of June 2016, 35/42 patients started treatment, and 31 completed. Median age is 75 (range 70 to 83). 51.4% are female. 8.6% have PS0, 68.6% PS1 and 22.9% PS2. 82.9% have adenocarcinoma, 14.3% SqCC, and 2.9% adenosquamous. 5.7% had EGFR, 28.6% kRAS. 33 patients had one prior treatment and 2 also received nivolumab. Of the 31 patients off treatment, median cycles received was 3 (range 1-22). 11/30 (37%) experienced the primary endpoint. When expanded to >=grade 3 toxicity at any time, this rose to 43% (13/30). The most common ≥G3 toxicities at any time point were fatigue (6/30), peripheral sensory neuropathy (4/30) and neutropenia (3/30). RR was 21% (1CR, 5PR, 16SD and 7PD of 29 patients evaluable). With a median FU of ongoing survivors (n=9) of 7.8 months, median progression free survival (PFS) was 5.2 months and median overall survival (OS) was 10.1 months. Figure 1



      Conclusion:
      These results demonstrate efficacy and safety of nab-paclitaxel for the 2[nd] line treatment of NSCLC in elderly patients and provide prospective data to support the treatment of fit elderly in 2[nd] line. Updated PFS, OS, geriatric assessment and quality of life data will be presented.

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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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      P2.06-019 - A Phase II Study of Atezolizumab as Neoadjuvant and Adjuvant Therapy in Patients (pts) with Resectable Non-Small Cell Lung Cancer (NSCLC) (ID 4642)

      14:30 - 14:30  |  Author(s): L. Villaruz

      • Abstract

      Background:
      There is no curative treatment for patients with NSCLC who develop metastatic disease after resection. Trials of neoadjuvant and adjuvant chemotherapy have demonstrated an absolute survival benefit of 5% for patients with stages IB, II, and IIIA disease. Clearly, developing new treatment strategies to improve survival following resection is critical to improving outcomes for this patient population. Immunotherapy with checkpoint inhibitors such as antibodies to PD-1 and PD-L1 has demonstrated superior survival compared to chemotherapy in randomized clinical trials. PD-L1 expression is being investigated as a predictive biomarker for these therapies, but its ability to predict response has varied in published trials. Atezolizumab is a humanized IgG1 monoclonal PD-L1 antibody that was recently evaluated in the POPLAR trial (NCT01903993), a phase II randomized trial of patients with NSCLC who progressed on platinum based chemotherapy. Atezolizumab therapy improved overall survival compared with docetaxel (12.6 months vs. 9.7 months, HR 0.73 [95% CI 0.53 – 0.99]) with a manageable safety profile. Improvement in survival correlated with PD-L1 immunohistochemistry expression of tumor and tumor-infiltrating immune cells.

      Methods:
      Trial design: This phase II, open-label, single-arm study is designed to evaluate the efficacy and safety of atezolizumab as a neoadjuvant therapy in patients with Stage IB, II, or IIIA NSCLC prior to curative-intent resection. Approximately 180 patients with NSCLC will be enrolled in this study at 15 academic medical centers in the United States. There are two parts to this study: the first/primary part will evaluate the ability of neoadjuvant atezolizumab to produce objective pathologic responses in patients with early stage NSCLC. Atezolizumab 1200 mg IV will be given every 3 weeks for two doses. Surgical resection of tumors following treatment will allow determination of pathologic response rates and potential predictive biomarkers. Part 2 is exploratory and will evaluate atezolizumab adjuvant therapy for up to 12 months in patients who demonstrate clinical benefit (evidence of pathologic response or absence of radiographic progression) in Part 1. After surgical resection, patients may receive SOC adjuvant chemotherapy (with or without radiation) before starting atezolizumab adjuvant therapy in Part 2. The primary objectives are safety and major pathologic response based on surgical resection. Secondary objectives include overall response rate based on PD-L1 status, mutational load, antigen burden, and RNA-sequencing. This trial presents a unique opportunity to evaluate exploratory biomarkers, including pre- and post-treatment biopsy assessment of evolution of immune related markers associated with response.

      Results:
      Section not applicable

      Conclusion:
      Section not applicable