Molecular Profile Detail

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Profile Name RB1 inact mut
Gene Variant Detail

RB1 inact mut (loss of function)

Relevant Treatment Approaches HDAC Inhibitor

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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 glioblastoma multiforme 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
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
Clinical Trial Phase Therapies Title Recruitment Status
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 Recruiting
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
NCT04471974 Phase II Enzalutamide + Pembrolizumab + ZEN-3694 ZEN-3694, Enzalutamide, and Pembrolizumab for the Treatment of Metastatic Castration-Resistant Prostate Cancer Not yet recruiting