Abstract 2982
Background
Alflutinib (AST2818) is an irreversible EGFR-TKI selective for EGFR T790M mutation. We aimed to assess the safety and efficacy of alflutinib in advanced non-small cell lung cancer (NSCLC) patients with EGFR T790M mutation, who progressed after the first- or second-generation EGFR-TKI therapy.
Methods
In the phase I/II open-label, single-arm, dose-escalation and dose-expansion studies, patients with confirmed EGFR T790M mutation, locally advanced or metastatic NSCLC, who progressed after prior EGFR-TKI therapy, received alflutinib ranging from 20 - 240 mg orally once daily until disease progression or unacceptable toxicity. Patients with asymptomatic, stable central nervous system (CNS) metastases were included. The primary efficacy endpoint was the objective response rate (ORR), assessed by independent radiological review committee, in patients who received at least 1 dose with measurable disease at baseline in the dose-expansion study. Safety was assessed in all treated patients.
Results
Between Dec 27, 2016, and Oct 30, 2018, 130 (14 from dose-escalation, 116 from dose-expansion) patients received alflutinib treatment (2, 9, 48, 53, 18 patients in 20, 40, 80, 160 and 240 mg groups, respectively). By Oct 30, 2018, 79 (61%) patients remained on treatment. No dose limiting toxicity was observed. Median duration of alflutinib treatment was 226 (range: 3 - 513) days. The ORR in all treated patients was 76.7% (89/116; 95% CI: 68.0 - 84.1), duration of response ranged from 72 - 294+ days, disease control rate was 82.8% (96/116 patients). The ORR in patients with CNS metastases was 58.8% (10/17). No clear dose-response relationship was observed. Among 130 patients, 123 (95%) had treatment-related adverse events (TRAEs, including possibly not-related cases); 21 (16%) patients had grade 3 or 4 TRAEs, with the most common being decreased neutrophil count (4 patients). 20 (15%) patients had 31 serious adverse events (SAEs), 15 (12%) of them had 22 treatment-related SAEs. Five out of six deaths were due to AEs.
Conclusions
Alflutinib has promising efficacy and acceptable toxicity profile for NSCLC patients with EGFR T790M mutation who progressed after EGFR-TKI therapy. Further investigation is ongoing.
Clinical trial identification
NCT02973763, NCT03127449.
Editorial acknowledgement
Ping Liu (Linking Truth Technology Co. Ltd., China), funded by Shanghai Allist Pharmaceuticals Inc., China.
Legal entity responsible for the study
Shanghai Allist Pharmaceuticals Inc., China.
Funding
Shanghai Allist Pharmaceuticals Inc., China.
Disclosure
Y. Jiang: Full / Part-time employment: Shanghai Allist Pharmaceuticals Inc., China. All other authors have declared no conflicts of interest.
Resources from the same session
3158 - Tobacco Retail Access and Tobacco Cessation Among Head and Neck Cancer (HNC) Survivors
Presenter: Lawson Eng
Session: Poster Display session 1
Resources:
Abstract
5511 - ASSERT: A Prospective, Observational Study Measuring Sodium Improvement and Outcomes in Patients Treated for Moderate to Severe Hyponatremia Secondary to Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH) in Italy (Lung Cancer Cohort)
Presenter: Rossana Berardi
Session: Poster Display session 1
Resources:
Abstract
3821 - Efficacy and safety of controlled ovarian stimulation with or without letrozole co-administration for fertility preservation: A systematic review and meta-analysis.
Presenter: Benedetta Bonardi
Session: Poster Display session 1
Resources:
Abstract
2168 - Child development at 6 years after maternal cancer diagnosis and treatment during pregnancy
Presenter: Tineke Vandenbroucke
Session: Poster Display session 1
Resources:
Abstract
5855 - Update of the registry of young women with cancer by the International Network of Cancer, Infertility and Pregnancy
Presenter: Charlotte Maggen
Session: Poster Display session 1
Resources:
Abstract
5156 - Erectile dysfunction in patients with metastatic renal cell carcinoma
Presenter: Ilya Tsimafeyeu
Session: Poster Display session 1
Resources:
Abstract
4992 - Exercise level, interest and preferences in cancer patients.
Presenter: Alice Avancini
Session: Poster Display session 1
Resources:
Abstract
3427 - Filling the Gaps in Informed Consent for Advanced Cancer Patients considering Phase 1 Oncology Trials - an in-depth Qualitative Study of Key Stakeholders at a large United Kingdom Phase 1 unit
Presenter: Abhijit Pal
Session: Poster Display session 1
Resources:
Abstract
3537 - Breast Cancer Patients’ Quality of Life: Real World Data
Presenter: Thanos Kosmidis
Session: Poster Display session 1
Resources:
Abstract
4761 - High-sensitivity troponin as a cardiotoxicity biomarker in breast cancer treatment
Presenter: Joana Simões
Session: Poster Display session 1
Resources:
Abstract