RO4987655MEK inhibitor CAS# 874101-00-5 |
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Quality Control & MSDS
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Chemical structure
3D structure
| Cas No. | 874101-00-5 | SDF | Download SDF |
| PubChem ID | 11548630 | Appearance | Powder |
| Formula | C20H19F3IN3O5 | M.Wt | 565.28 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Synonyms | CH4987655 | ||
| Solubility | DMSO : 100 mg/mL (176.90 mM; Need ultrasonic) | ||
| Chemical Name | 3,4-difluoro-2-(2-fluoro-4-iodoanilino)-N-(2-hydroxyethoxy)-5-[(3-oxooxazinan-2-yl)methyl]benzamide | ||
| SMILES | C1CC(=O)N(OC1)CC2=C(C(=C(C(=C2)C(=O)NOCCO)NC3=C(C=C(C=C3)I)F)F)F | ||
| Standard InChIKey | FIMYFEGKMOCQKT-UHFFFAOYSA-N | ||
| Standard InChI | InChI=1S/C20H19F3IN3O5/c21-14-9-12(24)3-4-15(14)25-19-13(20(30)26-31-7-5-28)8-11(17(22)18(19)23)10-27-16(29)2-1-6-32-27/h3-4,8-9,25,28H,1-2,5-7,10H2,(H,26,30) | ||
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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| About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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| Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. | ||
| Description | RO4987655 is an orally active and highly selective MEK inhibitor with an IC50 of 5.2 nM for inhibition of MEK1/MEK2.In Vitro:RO4987655 potently inhibits mitogen-activated protein kinase signaling pathway activation and tumor cell growth, with an in vitro IC50 of 5.2 nM for inhibition of MEK1/2[1]. RO4987655 inhibits proliferation of NCI-H2122 cells in a dose-dependent manner with an IC50 value of 0.0065 μM. RO4987655 at doses ranging from 0.1 to 1.0 μM suppresses pERK1/2 already at 2 h after the start of treatment[2].In Vivo:Single-agent oral administration of RO4987655 (CH4987655) results in complete tumor regressions in xenograft models. RO4987655 is rapidly absorbed with a tmax of ~1 h. Exposures are dose proportional from 0.5 to 4 mg. The disposition is biphasic with a terminal t1/2 of ~25 hr. Intersubject variability is low, 9% to 23% for Cmax and 14% to 25% for area-under-the-curve (AUC). pERK inhibition is exposure dependent and is greater than 80% inhibition at higher doses. The pharmacokinetic-pharmacodynamic relationship is characterized by an inhibitory Emax model (Emax ~100%; IC50 40.6 ng/mL) using nonlinear mixed-effect modeling[1]. Female athymic nude mice are randomized into study groups. The tumors size is estimated with digital caliper and PET scans performed on days 0, 1, and 3 with 1.0, 2.5, and 5.0 mg/kg RO4987655. The vehicle treatment does not inhibit the NCI-H2122 tumor xenograft growth over this time frame. In contrast, RO4987655 treatment results in 119% tumor growth inhibition (TGI) at 1.0 mg/kg, 145% TGI at 2.5 mg/kg and 150% TGI at 5.0 mg/kg on day 3. PET imaging shows that [18F] FDG uptake in the xenografts decreases within 24 h (day 1) from the administration of RO4987655[2]. References: | |||||
RO4987655 Dilution Calculator
RO4987655 Molarity Calculator
| 1 mg | 5 mg | 10 mg | 20 mg | 25 mg | |
| 1 mM | 1.769 mL | 8.8452 mL | 17.6903 mL | 35.3807 mL | 44.2259 mL |
| 5 mM | 0.3538 mL | 1.769 mL | 3.5381 mL | 7.0761 mL | 8.8452 mL |
| 10 mM | 0.1769 mL | 0.8845 mL | 1.769 mL | 3.5381 mL | 4.4226 mL |
| 50 mM | 0.0354 mL | 0.1769 mL | 0.3538 mL | 0.7076 mL | 0.8845 mL |
| 100 mM | 0.0177 mL | 0.0885 mL | 0.1769 mL | 0.3538 mL | 0.4423 mL |
| * Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations. | |||||
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RO4987655 is a highly selective and small molecule inhibitor of MEK with IC50 value of 5nM [1].
RO4987655 is developed with a unique 3-oxo-[1,2]oxazinan-2-ylmethyl group at the 5-position.It is highly selective against MEK over other 400 kinases. Meanwhile, RO4987655 is a non- competitive inhibitor of MEK. It shows higher affinity for MEK both in the absence and the presence of ATP. RO4987655 has a strong anti-proliferation efficacy in various tumor cells including COLO205, HT29, QG56, MIA and C32 with IC50 values of 0.86nM, 1.7nM, 9.5nM, 3.3nM and 8.4nM, respectively. In addition, RO4987655 is found to have antitumor activity in a wide range of human cancer xenograft models. In the HT-29 human colon cancer xenograft, RO4987655 shows a strong inhibition of pERK formation as well as tumor regression [1, 2].
RO4987655 is now in phase I trials. It shows clinical activity in both patients with BRAF wild-type melanoma and BRAF V600-mutated melanoma. It is also efficacious in patients with KRAS-mutated non-small cell lung cancer but not KRAS-mutated colorectal cancer [2].
References:
[1] Isshiki Y, Kohchi Y, Iikura H, Matsubara Y, Asoh K, Murata T, Kohchi M, Mizuguchi E, Tsujii S, Hattori K, Miura T, Yoshimura Y, Aida S, Miwa M, Saitoh R, Murao N, Okabe H, Belunis C, Janson C, Lukacs C, Schück V, Shimma N. Design and synthesis of novel allosteric MEK inhibitor CH4987655 as an orally available anticancer agent. Bioorg Med Chem Lett. 2011 Mar 15;21(6):1795-801.
[2] Zimmer L, Barlesi F, Martinez-Garcia M, Dieras V, Schellens JH, Spano JP, Middleton MR, Calvo E, Paz-Ares L, Larkin J, Pacey S, Venturi M, Kraeber-Bodere F, Tessier JJ, Eberhardt WE, Paques M, Guarin E, Meresse Naegelen V, Soria JC. Phase I expansion and pharmacodynamic study of the oral MEK inhibitor RO4987655 (CH4987655) in selected advanced cancer patients with RAS-RAF mutations. Clin Cancer Res. 2014 Jun 19. pii: clincanres.0341.2014.
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Evaluation of efficacy of a new MEK inhibitor, RO4987655, in human tumor xenografts by [(18)F] FDG-PET imaging combined with proteomic approaches.[Pubmed:26116108]
EJNMMI Res. 2014 Dec;4(1):34.
BACKGROUND: Inhibition of mitogen-activated protein kinase (MEK, also known as MAPK2, MAPKK), a key molecule of the Ras/MAPK (mitogen-activated protein kinase) pathway, has shown promising effects on B-raf-mutated and some RAS (rat sarcoma)-activated tumors in clinical trials. The objective of this study is to examine the efficacy of a novel allosteric MEK inhibitor RO4987655 in K-ras-mutated human tumor xenograft models using [(18)F] FDG-PET imaging and proteomics technology. METHODS: [(18)F] FDG uptake was studied in human lung carcinoma xenografts from day 0 to day 9 of RO4987655 therapy using microPET Focus 120 (CTI Concorde Microsystems, Knoxville, TN, USA). The expression levels of GLUT1 and hexokinase 1 were examined using semi-quantitative fluorescent immunohistochemistry (fIHC). The in vivo effects of RO4987655 on MAPK/PI3K pathway components were assessed by reverse phase protein arrays (RPPA). RESULTS: We have observed modest metabolic decreases in tumor [(18)F] FDG uptake after MEK inhibition by RO4987655 as early as 2 h post-treatment. The greatest [(18)F] FDG decreases were found on day 1, followed by a rebound in [(18)F] FDG uptake on day 3 in parallel with decreasing tumor volumes. Molecular analysis of the tumors by fIHC did not reveal statistically significant correlations of GLUT1 and hexokinase 1 expressions with the [(18)F] FDG changes. RPPA signaling response profiling revealed not only down-regulation of pERK1/2, pMKK4, and pmTOR on day 1 after RO4987655 treatment but also significant up-regulation of pMEK1/2, pMEK2, pC-RAF, and pAKT on day 3. The up-regulation of these markers is interpreted to be indicative of a reactivation of the MAPK and activation of the compensatory PI3K pathway, which can also explain the rebound in [(18)F] FDG uptake following MEK inhibition with RO4987655 in the K-ras-mutated human tumor xenografts. CONCLUSIONS: We have performed the first preclinical evaluation of a new MEK inhibitor, RO4987655, using a combination of [(18)F] FDG-PET imaging and molecular proteomics. These results provide support for using preclinical [(18)F] FDG-PET imaging in early, non-invasive monitoring of the effects of MEK and perhaps other Ras/MAPK signaling pathway inhibitors, which should facilitate a wider implementation of clinical [(18)F] FDG-PET to optimize their clinical use.
Phase I and pharmacokinetics/pharmacodynamics study of the MEK inhibitor RO4987655 in Japanese patients with advanced solid tumors.[Pubmed:25809858]
Invest New Drugs. 2015 Jun;33(3):641-51.
RO4987655 is an oral and selective inhibitor of MEK, a key enzyme of the mitogen-activated protein kinase (MAPK) signaling pathway. This phase I dose-escalation study of RO4987655 in Japanese patients with advanced solid tumors aimed to determine maximum tolerated dose (MTD) and to evaluate safety, pharmacokinetics (PK), pharmacodynamics (PD), and anti-tumor activity. Patients received a single dose of RO4987655 (1, 2, 4, 5, or 6.5 mg) followed by continuous once-daily dosing (1, 2, or 4 mg QD) or twice-daily dosing (4, 5, or 6.5 mg BID) in 28-day cycles. A 3 + 3 dose-escalation design was used. PD was evaluated by pERK inhibition in peripheral blood mononuclear cells (PBMCs). In dose-escalation, 25 patients were enrolled. After the MTD was determined, a further six patients were administered the MTD for further confirmation of safety. MTD was determined as 8 mg/day (4 mg BID) due to a total of four dose-limiting toxicities (DLTs) of grade 3 creatine phosphokinase (CPK) elevation (2 DLTs each in 10 mg/day and 13 mg/day). Most commonly related adverse events included dermatitis acneiform, CPK elevation, and eye disorders. Plasma concentration of RO4987655 appeared to increase in a dose-proportional manner with a plasma half-life of 4.32 to 21.1 h. Following multiple dose administration, a steady-state condition was reached by Cycle 1 Day 8. The inhibitory effects of RO4987655 on pERK in PBMCs increased in a dose-dependent manner. One esophageal cancer patient had confirmed partial response and seven patients showed progression-free survival for longer than 16 weeks. The MTD of RO4987655 for Japanese patients was determined as 8 mg/day (4 mg BID). RO4987655 was tolerated up to the MTD with a favorable PK/PD profile in Japanese patients with advanced solid tumors.
Phase I expansion and pharmacodynamic study of the oral MEK inhibitor RO4987655 (CH4987655) in selected patients with advanced cancer with RAS-RAF mutations.[Pubmed:24947927]
Clin Cancer Res. 2014 Aug 15;20(16):4251-61.
PURPOSE: This phase I expansion study assessed safety, pharmacodynamic effects, and antitumor activity of RO4987655, a pure MEK inhibitor, in selected patients with advanced solid tumor. EXPERIMENTAL DESIGN: We undertook a multicenter phase I two-part study (dose escalation and cohort expansion). Here, we present the part 2 expansion that included melanoma, non-small cell lung cancer (NSCLC), and colorectal cancer with oral RO4987655 administered continuously at recommended doses of 8.5 mg twice daily until progressive disease (PD). Sequential tumor sampling investigated multiple markers of pathway activation/tumor effects, including ERK phosphorylation and Ki-67 expression. BRAF and KRAS testing were implemented as selection criteria and broader tumor mutational analysis added. RESULTS: Ninety-five patients received RO4987655, including 18 BRAF-mutant melanoma, 23 BRAF wild-type melanoma, 24 KRAS-mutant NSCLC, and 30 KRAS-mutant colorectal cancer. Most frequent adverse events were rash, acneiform dermatitis, and gastrointestinal disorders, mostly grade 1/2. Four (24%) of 17 BRAF-mutated melanoma had partial response as did four (20%) of 20 BRAF wild-type melanoma and two (11%) of 18 KRAS-mutant NSCLC. All KRAS-mutant colorectal cancer developed PD. Paired tumor biopsies demonstrated reduced ERK phosphorylation among all cohorts but significant differences among cohorts in Ki-67 modulation. Sixty-nine percent showed a decrease in fluorodeoxyglucose uptake between baseline and day 15. Detailed mutational profiling confirmed RAS/RAF screening and identified additional aberrations (NRAS/non-BRAF melanomas; PIK3CA/KRAS colorectal cancer) without therapeutic implications. CONCLUSIONS: Safety profile of RO4987655 was comparable with other MEK inhibitors. Single-agent activity was observed in all entities except colorectal cancer. Evidence of target modulation and early biologic activity was shown among all indications independent of mutational status. Clin Cancer Res; 20(16); 4251-61. (c)2014 AACR.
Phase I dose-escalation study of the safety, pharmacokinetics, and pharmacodynamics of the MEK inhibitor RO4987655 (CH4987655) in patients with advanced solid tumors.[Pubmed:22767668]
Clin Cancer Res. 2012 Sep 1;18(17):4794-805.
PURPOSE: This phase I study of the mitogen-activated protein/extracellular signal-regulated kinase inhibitor RO4987655 (CH4987655) assessed its maximum tolerated dose (MTD), dose-limiting toxicities (DLT), safety, pharmacokinetic/pharmacodynamic profile, and antitumor activity in patients with advanced solid tumors. PATIENTS AND METHODS: An initial dose escalation was conducted using a once-daily dosing schedule, with oral RO4987655 administered at doses of 1.0 to 2.5 mg once daily over 28 consecutive days in 4-week cycles. Doses were then escalated from 3.0 to 21.0 mg [total daily dose (TDD)] using a twice-daily dosing schedule. RESULTS: Forty-nine patients were enrolled. DLTs were blurred vision (n = 1) and elevated creatine phosphokinase (n = 3). The MTD was 8.5 mg twice daily (TDD, 17.0 mg). Rash-related toxicity (91.8%) and gastrointestinal disorders (69.4%) were the most frequent adverse events. The pharmacokinetic profile of RO4987655 showed dose linearity and a half-life of approximately 4 hours. At the MTD, target inhibition, assessed by suppression of extracellular signal-regulated kinase phosphorylation in peripheral blood mononuclear cells, was high (mean 75%) and sustained (90% of time >IC(50)). Of the patients evaluable for response, clinical benefit was seen in 21.1%, including two partial responses (one confirmed and one unconfirmed). 79.4% of patients showed a reduction in fluorodeoxyglucose uptake by positron emission tomography between baseline and day 15. CONCLUSION: In this population of heavily pretreated patients, oral RO4987655 showed manageable toxicity, a favorable pharmacokinetics/pharmacodynamics profile, and promising preliminary antitumor activity, which has been further investigated in specific populations of patients with RAS and/or RAF mutation driven tumors.
