Molecular Profile Detail


Missing content? – Request curation!

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

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

Email us at :

Profile Name RB1 inact mut
Gene Variant Detail

RB1 inact mut (loss of function)

Relevant Treatment Approaches HDAC Inhibitor


  • 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"


  • 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 Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
RB1 inact mut retinoblastoma sensitive BAY 61-3606 Preclinical Actionable In a preclinical study, a retinoblastoma cell line was sensitive to BAY 61-3606 in cell culture and in xenograft models, demonstrating increased apoptosis (PMID: 22237022). 22237022
RB1 inact mut retinoblastoma sensitive Fostamatinib Preclinical Actionable In a preclinical study, retinoblastoma cell lines demonstrated sensitivity to Fostamatinib resulting in cell death (PMID: 22237022). 22237022
RB1 inact mut glioblastoma resistant Palbociclib Preclinical - Cell line xenograft Actionable In a preclinical study, Ibrance (palbociclib) failed to inhibit growth of RB1-deficient glioblastoma cell lines in culture and in intracranial cell line xenograft models (PMID: 20354191). 20354191
RB1 inact mut retinoblastoma sensitive Nutlin-3a Preclinical Actionable In a preclinical study, Nutlin-3a induced p53 pathway signaling in MDMX mouse models with retinoblastoma and 69% (70/102) of the eyes harvested from the mouse models demonstrated complete response or stable disease after 18 weeks of therapy (PMID: 21515735). 21515735
Clinical Trial Phase Therapies Title Recruitment Status Covered Countries Other Countries
NCT04432454 Phase II Abemaciclib + Lasofoxifene Evaluation of Lasofoxifene Combined With Abemaciclib in Advanced or Metastatic ER+/HER2- Breast Cancer With an ESR1 Mutation (ELAINEII) Active, not recruiting USA 0
NCT04471974 Phase II Enzalutamide + Pembrolizumab + ZEN-3694 ZEN-3694, Enzalutamide, and Pembrolizumab for the Treatment of Metastatic Castration-Resistant Prostate Cancer Recruiting USA 0
NCT02546661 Phase I AZD9150 + Durvalumab Durvalumab + Selumetinib AZD4547 Durvalumab + Olaparib Durvalumab AZD4547 + Durvalumab Durvalumab + Vistusertib Adavosertib + Durvalumab Open-Label, Randomised, Multi-Drug, Biomarker-Directed, Phase 1b Study in Pts w/ Muscle Invasive Bladder Cancer (BISCAY) Active, not recruiting USA | FRA | ESP | CAN 1
NCT04074785 Phase I Abemaciclib + Bevacizumab Pilot Study of Abemaciclib With Bevacizumab in Recurrent Glioblastoma Patients With Loss of CDKN2A/B or Gain or Amplification of CDK4/6 Active, not recruiting USA 0
NCT04926181 Phase II Apalutamide + Cetrelimab Apalutamide Plus Cetrelimab in Patients With Treatment-Emergent Small Cell Neuroendocrine Prostate Cancer Recruiting USA 0