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Sara Ghassemifar

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    P2.13 - Targeted Therapy (Not CME Accredited Session) (ID 962)

    • Event: WCLC 2018
    • Type: Poster Viewing in the Exhibit Hall
    • Track:
    • Presentations: 1
    • Moderators:
    • Coordinates: 9/25/2018, 16:45 - 18:00, Exhibit Hall
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      P2.13-45 - SHERLOC: A Phase 2 Study of Seribantumab in Combination with Docetaxel in Patients with Heregulin Positive, Advanced NSCLC (ID 11349)

      16:45 - 18:00  |  Author(s): Sara Ghassemifar

      • Abstract
      • Slides


      HER3 and its ligand, heregulin (HRG), have been identified as a critical activator of PI3K and Akt signaling and a key pro-survival pathway in cancer cells. Seribantumab (MM-121) is a fully human, monoclonal IgG2 antibody that binds to the HRG domain of HER3, blocking HER3 activity. Preclinical data suggest that seribantumab reverses HRG-mediated drug resistance across multiple cancer models. In retrospective analyses of prior seribantumab Phase 2 studies, high levels of HRG mRNA appeared to predict poor outcome to standard of care (SOC) treatment. Addition of seribantumab to SOC appeared to improve progression-free survival (PFS) in patients with HRG positive (HRG+) tumors, consistent with the hypothesis that the blockade of HRG-induced HER3 signaling by seribantumab can restore drug sensitivity.

      a9ded1e5ce5d75814730bb4caaf49419 Method

      In the current randomized, open-label, international, Phase 2 study, patients with locally advanced or metastatic NSCLC histologically classified as adenocarcinoma are screened for HRG using an RNA in situ hybridization assay on a recent biopsy tissue sample. Approximately 100 HRG+ patients will be enrolled and randomized in a 2:1 ratio to receive seribantumab plus docetaxel (experimental treatment Arm), or docetaxel alone (control Arm). Eligible patients must have no EGFR and ALK mutations and have progressed following one to two SOC for locally advanced and/or metastatic disease, including platinum-based therapy and anti-PD-1/PD-L1 therapy where available and clinically indicated. Primary trial endpoint is PFS. Secondary endpoints include overall survival, objective response rate, time to progression, and pharmacokinetic profile. The study has ≥ 80% power to detect a 3-month improvement in median PFS over 3 months (hazard ratio ≤ 0.50), using a one-sided, stratified log-rank test at a significance level of 0.025. Study is ongoing and enrolling patients in seventy nine sites worldwide. Clinical trial information: NCT02387216

      4c3880bb027f159e801041b1021e88e8 Result

      Section not applicable

      8eea62084ca7e541d918e823422bd82e Conclusion

      Section not applicable


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