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Ref Type Journal Article
PMID (29563138)
Authors Horn L, Infante JR, Reckamp KL, Blumenschein GR, Leal TA, Waqar SN, Gitlitz BJ, Sanborn RE, Whisenant JG, Du L, Neal JW, Gockerman JP, Dukart G, Harrow K, Liang C, Gibbons JJ, Holzhausen A, Lovly CM, Wakelee HA
Title Ensartinib (X-396) in ALK-Positive Non-Small Cell Lung Cancer: Results from a First-in-Human Phase I/II, Multicenter Study.
Journal Clinical cancer research : an official journal of the American Association for Cancer Research
Vol 24
Issue 12
Date 2018 Jun 15
Abstract Text Purpose: Evaluate safety and determine the recommended phase II dose (RP2D) of ensartinib (X-396), a potent anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitor (TKI), and evaluate preliminary pharmacokinetics and antitumor activity in a first-in-human, phase I/II clinical trial primarily in patients with non-small cell lung cancer (NSCLC).Patients and Methods: In dose escalation, ensartinib was administered at doses of 25 to 250 mg once daily in patients with advanced solid tumors; in dose expansion, patients with advanced ALK-positive NSCLC were administered 225 mg once daily. Patients who had received prior ALK TKI(s) and patients with brain metastases were eligible.Results: Thirty-seven patients enrolled in dose escalation, and 60 enrolled in dose expansion. The most common treatment-related toxicities were rash (56%), nausea (36%), pruritus (28%), vomiting (26%), and fatigue (22%); 23% of patients experienced a treatment-related grade 3 to 4 toxicity (primarily rash and pruritus). The maximum tolerated dose was not reached, but the RP2D was chosen as 225 mg based on the frequency of rash observed at 250 mg without improvement in activity. Among the ALK-positive efficacy evaluable patients treated at ≥200 mg, the response rate (RR) was 60%, and median progression-free survival (PFS) was 9.2 months. RR in ALK TKI-naïve patients was 80%, and median PFS was 26.2 months. In patients with prior crizotinib only, the RR was 69% and median PFS was 9.0 months. Responses were also observed in the central nervous system, with an intracranial RR of 64%.Conclusions: Ensartinib was active and generally well tolerated in patients with ALK-positive NSCLC. Clin Cancer Res; 24(12); 2771-9. ©2018 AACR.


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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
ALK rearrange lung non-small cell carcinoma sensitive Ensartinib Phase Ib/II Actionable In a Phase I/II trial, Ensartinib (X-396) treatment resulted in partial response in 60% (36/60) and stable disease in 21.7 % (13/60) of patients with ALK-positive non-small cell lung cancer, with a median progression-free survival of 9.2 months, and a response rate of 80% (12/15) in crizotinib-naïve patients and 69% (20/29) in patients with prior crizotinib treatment (PMID: 29563138; NCT01625234). 29563138