Reference Detail

Contact

Missing content? – Request curation!

Request curation for specific Genes, variants, or PubMed publications.

Have questions, comments or suggestions? - Let us know!

Email us at : ckbsupport@jax.org

Ref Type Journal Article
PMID (26916115)
Authors Waizenegger IC, Baum A, Steurer S, Stadtmüller H, Bader G, Schaaf O, Garin-Chesa P, Schlattl A, Schweifer N, Haslinger C, Colbatzky F, Mousa S, Kalkuhl A, Kraut N, Adolf GR
Title A Novel RAF Kinase Inhibitor with DFG-Out-Binding Mode: High Efficacy in BRAF-Mutant Tumor Xenograft Models in the Absence of Normal Tissue Hyperproliferation.
Journal Molecular cancer therapeutics
Vol 15
Issue 3
Date 2016 Mar
URL
Abstract Text BI 882370 is a highly potent and selective RAF inhibitor that binds to the DFG-out (inactive) conformation of the BRAF kinase. The compound inhibited proliferation of human BRAF-mutant melanoma cells with 100× higher potency (1-10 nmol/L) than vemurafenib, whereas wild-type cells were not affected at 1,000 nmol/L. BI 882370 administered orally was efficacious in multiple mouse models of BRAF-mutant melanomas and colorectal carcinomas, and at 25 mg/kg twice daily showed superior efficacy compared with vemurafenib, dabrafenib, or trametinib (dosed to provide exposures reached in patients). To model drug resistance, A375 melanoma-bearing mice were initially treated with vemurafenib; all tumors responded with regression, but the majority subsequently resumed growth. Trametinib did not show any efficacy in this progressing population. BI 882370 induced tumor regression; however, resistance developed within 3 weeks. BI 882370 in combination with trametinib resulted in more pronounced regressions, and resistance was not observed during 5 weeks of second-line therapy. Importantly, mice treated with BI 882370 did not show any body weight loss or clinical signs of intolerability, and no pathologic changes were observed in several major organs investigated, including skin. Furthermore, a pilot study in rats (up to 60 mg/kg daily for 2 weeks) indicated lack of toxicity in terms of clinical chemistry, hematology, pathology, and toxicogenomics. Our results indicate the feasibility of developing novel compounds that provide an improved therapeutic window compared with first-generation BRAF inhibitors, resulting in more pronounced and long-lasting pathway suppression and thus improved efficacy.

Filtering

  • Case insensitive filtering will display rows where any text in any cell matches the filter term
  • Simple literal full or partial string matches
  • Separate multiple filter terms with a spaces, order doesn't matter (a b c and c b a are equivalent )
  • Filtering will only apply to rows that are already loaded on the page, filtering has no impact on query parameters
  • Use quotes to match a longer phrase which contains spaces "mtor c1483f"

Sorting

  • Generally, the default sort order for tables is set to be first column ascending, however, specific tables may set a different default sort order.
  • Click on any column header arrows to sort by that column
  • Hold down the Shift key and click multiple columns to sort by more than one column, be sure to set ascending or descending order for a given column, before moving on to the next column.

Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
BI 882370 BI 882370 0 0
Drug Name Trade Name Synonyms Drug Classes Drug Description
BI 882370 XP-102|BI-882370 BRAF Inhibitor 20 BI 882370 is a Raf kinase inhibitor with potent activity against the inactive conformation of Braf and may result in tumor regression (PMID: 26916115).
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 sensitive Afatinib + BI 882370 Preclinical Actionable In a preclinical study, colorectal cancer cells harboring BRAF V600E were sensitive to the combination of BI 882370 and Gilotrif (afatinib) in xenograft models, resulting in tumor growth inhibition and partial tumor regression (PMID: 26916115). 26916115
BRAF V600E colorectal cancer sensitive BI 882370 + Cetuximab Preclinical Actionable In a preclinical study, colorectal cancer cells harboring BRAF V600E were sensitive to the combination of BI 882370 and Erbitux (cetuximab) in xenograft models, resulting in tumor growth inhibition and partial tumor regression (PMID: 26916115). 26916115
BRAF V600E melanoma sensitive BI 882370 + Trametinib Preclinical Actionable In a preclinical study, xenograft models of melanoma harboring BRAF V600E treated with the combination of BI 882370 and Mekinist (trametinib) demonstrated tumor regression with no regrowth during the 5 weeks of treatment (PMID: 26916115). 26916115
BRAF V600E colorectal cancer sensitive BI 882370 + Trametinib Preclinical Actionable In a preclinical study, colorectal cancer cells harboring BRAF V600E were sensitive to the combination of BI 882370 and Mekinist (trametinib) in xenograft models, resulting in tumor growth inhibition and partial tumor regression (PMID: 26916115). 26916115