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Ref Type Journal Article
PMID (26365907)
Authors Werner TL, Wade ML, Agarwal N, Boucher K, Patel J, Luebke A, Sharma S
Title A pilot study of JI-101, an inhibitor of VEGFR-2, PDGFR-β, and EphB4 receptors, in combination with everolimus and as a single agent in an ovarian cancer expansion cohort.
Journal Investigational new drugs
Vol 33
Issue 6
Date 2015 Dec
URL
Abstract Text JI-101 is an oral multi-kinase inhibitor that targets vascular endothelial growth factor receptor type 2 (VEGFR-2), platelet derived growth factor receptor β (PDGFR-β), and ephrin type-B receptor 4 (EphB4). None of the currently approved angiogenesis inhibitors have been reported to inhibit EphB4, and therefore, JI-101 has a novel mechanism of action. We conducted a pilot trial to assess the pharmacokinetics (PK), tolerability, and efficacy of JI-101 in combination with everolimus in advanced cancers, and pharmacodynamics (PD), tolerability, and efficacy of JI-101 in ovarian cancer. This was the first clinical study assessing anti-tumor activity of JI-101 in a combinatorial regimen. In the PK cohort, four patients received single agent 10 mg everolimus on day 1, 10 mg everolimus and 200 mg JI-101 combination on day 8, and single agent 200 mg JI-101 on day 15. In the PD cohort, eleven patients received single agent JI-101 at 200 mg twice daily for 28 day treatment cycles. JI-101 was well tolerated as a single agent and in combination with everolimus. No serious adverse events were observed. Common adverse events were hypertension, nausea, and abdominal pain. JI-101 increased exposure of everolimus by approximately 22%, suggestive of drug-drug interaction. The majority of patients had stable disease at their first set of restaging scans (two months), although no patients demonstrated a response to the drug per RECIST criteria. The novel mechanism of action of JI-101 is promising in ovarian cancer treatment and further prospective studies of this agent may be pursued in a less refractory patient population or in combination with cytotoxic chemotherapy.

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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
JI-101 JI-101 0 0
Drug Name Trade Name Synonyms Drug Classes Drug Description
JI-101 CGI-1842 EPHB4 Inhibitor 6 PDGFR-beta Inhibitor 13 VEGFR2 Inhibitor 35 JI-101 inhibits KDR (VEGFR2), PDGFR-beta (PDGFRB), and EphB4, resulting in anti-tumor activity (PMID: 26365907, PMID: 32336043).
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
Unknown unknown ovarian cancer not applicable Everolimus + JI-101 Phase 0 Actionable In a pilot study, JI-101 in combination with Afinitor (everolimus) demonstrated safety and preliminary efficacy, resulted in stable disease in a majority of patients with ovarian cancer (PMID: 26365907). 26365907