Reference Detail

Ref Type

Journal Article

PMID

(22605650)

Authors

Wagner AJ, Goldberg JM, Dubois SG, Choy E, Rosen L, Pappo A, Geller J, Judson I, Hogg D, Senzer N, Davis IJ, Chai F, Waghorne C, Schwartz B, Demetri GD

Title

Tivantinib (ARQ 197), a selective inhibitor of MET, in patients with microphthalmia transcription factor-associated tumors: results of a multicenter phase 2 trial.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Cancer	118	23	2012 Dec 01	5894-902	Cancer

URL

Abstract Text

Microphthalmia transcription factor (MITF)-associated (MiT) tumors are a family of rare malignancies, including alveolar soft part sarcoma (ASPS), clear cell sarcoma (CCS), and translocation-associated renal cell carcinoma (tRCC) that have dysregulated expression of oncogenic MITF family proteins. The MET receptor tyrosine kinase gene is transcriptionally activated by MITF family proteins, making MET a potential therapeutic target for MiT tumors. This study assessed the activity of tivantinib (ARQ 197), a selective MET inhibitor, in patients with MiT-associated tumors.This multicenter, single-arm, phase 2 trial enrolled patients with advanced MiT tumors. Patients initially received tivantinib 120 mg orally twice daily, then 360 mg twice daily per protocol amendment. The primary endpoint was overall response rate. Secondary endpoints included safety, progression-free survival, pharmacokinetics, and correlative studies.A total of 47 patients (median age, 25 years; range, 11-73 years) with ASPS (n = 27), CCS (n = 11), tRCC (n = 6), or other tumor types (n = 3) were enrolled. Common grade 3/4 drug-related adverse events included anemia (4%) and neutropenia (4%). Three patients (6.4%) experienced 4 treatment-related serious adverse events (grade 3 febrile neutropenia, thrombocytopenia, and deep vein thrombosis, and grade 4 thrombocytopenia). Best response was partial response in 1 CCS patient (2%) and stable disease in 28 patients (60%). Median progression-free survival was 3.6 months (overall), 5.5 months (ASPS), and 1.9 months (CCS and tRCC). Baseline MET expression was strongly or focally positive in tumor samples from 14 of 19 patients (74%).Tivantinib was safe and tolerable in patients with MiT tumors, but antitumor activity was modest.

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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