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JCSE 01 - Joint IASLC/CSCO/CAALC Session: Immunotherapy for Management of Lung Cancer: Ongoing Research from East and West (ID 630)
- Event: WCLC 2017
- Type: Joint Session IASLC/CSCO/CAALC
- Track: Immunology and Immunotherapy
- Presentations: 1
- Moderators:C. Bai, Fred R. Hirsch, Tony SK Mok, Yi-Long Wu
- Coordinates: 10/15/2017, 07:30 - 11:30, F203 (Annex Hall)
JCSE 01.12 - A Phase II Study of Fruquintinib in Combination with Gefitinib in Stage IIIb/IV NSCLC Patients Harboring EGFR Activating Mutations (ID 10907)
07:30 - 11:30 | Author(s): J. Zhou
Seveal studies have demonstrated targeting EGFR mutations and tumor angiogenesis simultaneously has synergistic effect in the 1[st] line setting in EGFR mutant NSCLC. However, in JO25567 trial, the ≥grade 3 hypertension incidence with combination therapy was much higher (60%) when compared to historic incidence of hypertension with bevacizumab (10-15%). Considering relatively shorter half-lives for small molecule tyrosine kinase inhibitors, it might be a better choice to combine EGFR TKI and VEGFR TKI when it comes to hypertension management. Fruquintinib is a potent and highly selective oral kinase inhibitor targeting VEGFR and it has demonstrated favorable benefit-to-risk profile in third line treatment in NSCLC patients.Thus it is important to assess safety, tolerability and efficacy of this new combination in the 1[st] line setting in EGFR mutant NSCLC patients. NCT02976116
This is a single arm, open-label, multi-center study. All patients will receive gefitinib continuously at 250 mg qd. Fruquintinib will be given at 4 mg as starting dose for 3 weeks followed by 1 week off in the first 4-week cycle. Fruquintinib dose can be escalated to 5 mg with the same 4-week cycle if no ≥grade 3 adverse event (AE) or ≥grades 2 liver dysfunction occurs in the first cycle. Treatment continues until disease progression, unacceptable toxicity, or patient withdrawal. The primary objective is to assess the safety and tolerability of this combination. Key eligibility criteria include: histologically or cytologically confirmed NSCLC, ECOG PS 0-1, no prior systematic treatment, no brain metastasis. Key exclusion criteria include: known T790M mutation and bleeding history within 1 month before enrollment.
As of Jun 20, 2017, 9 patients have been enrolled and received at least one dose of fruquintinib and gefitinib. Six patients had L858R mutations, and three patients had exon 19 deletions. All patients reported AEs, but only one patient (11.1%) had grade 3 proteinuria. No SAE was reported. The most common AEs were increased ALT (3 [33.3%] patients), increased AST (3 [33.3%] patients), increased TBIL (3 [33.3%] patients), proteinuria (3 [33.3%] patients) and rash (3 [33.3%] patients). Fruquintinib dose reduction occurred in 3 patients due to grade 3 proteinuria, grade 2 increased ALT and grade 2 hemoptysis, respectively.
The study is ongoing. As of the cut-off date, no unexpected toxicities were identified. The combination of fruquintinib and gefitinib showed an expected and manageable preliminary safety profile. Additional patients and follow-up data are required to further confirm the full potential of this combination treatment.
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