Ravoxertinib

Ravoxertinib (GDC-0994) is an orally bioavailable ERK kinase inhibitor with an IC50 of 6.1 nM and 3.1 nM for ERK1 and ERK2, respectively.

Signaling Pathways >> MAPK/ERK Pathway >> ERK

Signaling Pathways >> Stem Cell/Wnt >> ERK

Research Areas >> Cancer

ERK1:6.1 nM (IC50)

ERK2:3.1 nM (IC50)

p-RSK:12 nM (IC50)

Ravoxertinib (GDC-0994) also inhibits p90RSK with IC50 of 12 nM[1]. Ravoxertinib (GDC-0994) is highly selective for ERK1 and ERK2, with biochemical potency of 1.1 nM and 0.3 nM, respectively[2].

In CD-1 mice, a 10 mg/kg oral dose of Ravoxertinib (GDC-0994) is sufficient to achieve the desired target coverage for at least 8 h[1]. Daily, oral dosing of Ravoxertinib results in significant single-agent activity in multiple in vivo cancer models, including KRAS-mutant and BRAF-mutant human xenograft tumors in mice[2].

Mice[1] PK/PD data for Ravoxertinib (GDC-0994) in the HCT116 mouse xenograft model. HCT116 tumors are established in nude mice to a tumor volume of 400-600 mm3. Mice are treated with a single oral dose of 22 at 15, 30, or 100 mg/kg versus vehicle control alone (40% PEG400/60% (10% HPβCD)) follow by tumor and plasma collection at 2, 8, 16, and 24 h postdose. Tumor levels of phosphorylated p90RSK (pRSK) relative total p90RSK (tRSK) are measured by quantitative Western blot and are normalized to vehicle control at 2 h postdose (set to 100%). Plasma and tumor concentrations are measured by LC−MS.

[1]. Blake JF, et al. Discovery of (S)-1-(1-(4-Chloro-3-fluorophenyl)-2-hydroxyethyl)-4-(2-((1-methyl-1H-pyrazol-5-yl)amino)pyrimidin-4-yl)pyridin-2(1H)-one (GDC-0994), an Extracellular Signal-Regulated Kinase 1/2 (ERK1/2) Inhibitor in Early Clinical Developme

[2]. Kirk Robarge, et al. Abstract DDT02-03: Discovery of GDC-0994, a potent and selective ERK1/2 inhibitor in early clinical development. Proceedings: AACR Annual Meeting 2014; April 5-9, 2014.

[3]. Huang X, et al. Targeting Epigenetic Crosstalk as a Therapeutic Strategy for EZH2-Aberrant Solid Tumors. Cell. 2018 Sep 20;175(1):186-199.e19.

SCH772984 | Honokiol | Sodium tauroursodeoxycholate | LY3214996 | Ulixertinib (BVD-523) | TIC10 | Astragaloside IV | XMD8-92 | LM22B 10 | VX-11e | FR 180204 | Mogrol | Pluripotin | AX 15836 | BIX02188