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Ref Type Journal Article
PMID (31848189)
Authors Varga A, Soria JC, Hollebecque A, LoRusso P, Bendell J, Huang SA, Wagle MC, Okrah K, Liu L, Murray E, Sanabria-Bohorquez SM, Tagen M, Dokainish H, Mueller L, Burris H
Title A First-in-Human Phase I Study to Evaluate the ERK1/2 Inhibitor GDC-0994 in Patients with Advanced Solid Tumors.
Journal Clinical cancer research : an official journal of the American Association for Cancer Research
Vol 26
Issue 6
Date 2020 Mar 15
URL
Abstract Text ERK1/2 signaling can be dysregulated in cancer. GDC-0994 is an oral inhibitor of ERK1/2. A first-in-human, phase I dose escalation study of GDC-0994 was conducted in patients with locally advanced or metastatic solid tumors.GDC-0994 was administered once daily on a 21-day on/7-day off schedule to evaluate safety, pharmacokinetics, and preliminary signs of efficacy. Patients with pancreatic adenocarcinoma and BRAF-mutant colorectal cancer were enrolled in the expansion stage.Forty-seven patients were enrolled in six successive cohorts (50-800 mg). A single DLT of grade 3 rash occurred at 600 mg. The most common drug-related adverse events (AE) were diarrhea, rash, nausea, fatigue, and vomiting. Pharmacokinetic data showed dose-proportional increases in exposure, with a mean half-life of 23 hours, supportive of once daily dosing. In evaluable paired biopsies, MAPK pathway inhibition ranged from 19% to 51%. Partial metabolic responses by FDG-PET were observed in 11 of 20 patients across dose levels in multiple tumor types. Overall, 15 of 45 (33%) patients had a best overall response of stable disease and 2 patients with BRAF-mutant colorectal cancer had a confirmed partial response.GDC-0994 had an acceptable safety profile and pharmacodynamic effects were observed by FDG-PET and in serial tumor biopsies. Single-agent activity was observed in 2 patients with BRAF-mutant colorectal cancer.

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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
Ravoxertinib GDC-0994 ERK Inhibitor (pan) 18 Ravoxertinib (GDC-0994) is a small molecule inhibitor of ERK1 and ERK2, which may decrease tumor growth (Cancer Res October 1, 2014 74:DDT02-03, PMID: 32311798, PMID: 31848189).
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
BRAF V600E colorectal cancer predicted - sensitive Ravoxertinib Case Reports/Case Series Actionable In a Phase I trial, two colorectal cancer patients harboring BRAF V600E achieved partial responses lasting 21 and 73 weeks following treatment with Ravoxertinib (GDC-0994) (PMID: 31848189; NCT01875705). 31848189