Gene Variant 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

Gene RB1
Variant positive
Impact List unknown
Protein Effect unknown
Gene Variant Descriptions RB1 positive indicates the presence of the RB1 gene, mRNA, and/or protein.
Associated Drug Resistance

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.

No Variant Reference Transcript is Available.
No transcript is Available.

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 Protein Effect Treatment Approaches
RB1 positive unknown
CDKN2A del RB1 pos
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
RB1 positive glioblastoma multiforme predicted - sensitive Palbociclib Preclinical - Cell line xenograft Actionable In a preclinical study, Ibrance (palbociclib) inhibited proliferation of RB1-proficient glioblastoma cell lines in culture and inhibited tumor growth in intracranial cell line xenograft models (PMID: 20354191). 20354191
RB1 positive Advanced Solid Tumor predicted - sensitive Ribociclib Phase I Actionable In a Phase I clinical trial, Kisqali (ribociclib) demonstrated safety and preliminary efficacy in patients with RB1-positive solid tumors and lymphomas, resulting in partial responses in 2.3% (3/132) of patients and stable disease in 32.6% (41/132) of patients, including 8 patients demonstrating stable disease for greater than 6 months (PMID: 27542767, PMID: 24795392). detail... 24795392 27542767
RB1 positive breast cancer predicted - sensitive Paclitaxel + Palbociclib Phase I Actionable In a Phase I trial, alternating sequential treatment with Ibrance (palbociclib) and Taxol (paclitaxel) resulted in a median progression-free survival (mPFS) of 209 days in patients with Rb1-positive breast cancer, with a mPFS of 802 days and a clinical benefit rate of 55.6% (5/9) at the recommended phase II dose (PMID: 30635336; NCT01320592). 30635336
RB1 positive medulloblastoma sensitive Palbociclib Preclinical - Pdx Actionable In a preclinical study, Ibrance (palbociclib) inhibited Rb1 phosphorylation in tumor tissues and improved survival in patient-derived intracranial xenograft models of medulloblastoma (PMID: 27012813). 27012813
CDKN2A del RB1 pos glioblastoma multiforme predicted - sensitive Ribociclib Phase 0 Actionable In a Phase 0 trial, Kisqali (ribociclib) demonstrated good CNS penetration and inhibited Rb1 phoaphorylation and tumor cell proliferation, resulted in a median progression-free survival of 9.7 week and an overall survival of 7.8 months in patients (n=6) with recurrent glioblastoma with intact Rb1 expression and harboring deletion of CDKN2A or amplification of CDK4 or CDK6 (PMID: 31285369; NCT02933736). 31285369