Molecular Profile Detail

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Profile Name RB1 H483Y
Gene Variant Detail

RB1 H483Y (unknown)

Relevant Treatment Approaches

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Molecular Profile Indication/Tumor Type Response Type Relevant Treatment Approaches Therapy Name Approval Status Evidence Type Efficacy Evidence References
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia decreased response Asparaginase + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the addition of Kisqali (ribociclib) to Elspar (asparaginase) resulted in an antagonistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation in culture (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Prednisolone + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Omnipred (prednisolone) resulted in a synergistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation in culture (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Bortezomib + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Velcade (bortezomib) resulted in an additive effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation in culture (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Dexamethasone + Ribociclib Preclinical - Cell line xenograft Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Adexone (dexamethasone) treatment in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation resulted in decreased cell viability and reduced phosphorylation of Rb1 in culture, and a greater survival benefit in xenograft models when compared to Kisqali (ribociclib) alone (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia decreased response Methotrexate + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the addition of Kisqali (ribociclib) to Methotrexate resulted in an antagonistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation in culture (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Ribociclib Preclinical - Cell culture Actionable In a preclinical study, a T-cell acute lymphoblastic leukemia cell line co-harboring wild-type RB1 and a NOTCH1 mutation demonstrated sensitivity to treatment with Kisqali (ribociclib) in culture, resulting in inhibition of cell growth (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia decreased response Mercaptopurine + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the addition of Kisqali (ribociclib) to Purixan (mercaptopurine) resulted in an antagonistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation in culture (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive JQ1 + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the combination of Kisqali (ribociclib) and JQ1 resulted in an additive effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation in culture (PMID: 28151717). 28151717
NOTCH1 mut RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Everolimus + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Afinitor (everolimus) treatment in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and a NOTCH1 mutation resulted in decreased Rb1 phosphorylation and a greater inhibition of cell growth compared to either agent alone in culture (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Prednisolone + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Omnipred (prednisolone) resulted in a synergistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 in culture (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Ribociclib Preclinical - Cell culture Actionable In a preclinical study, a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 demonstrated sensitivity to treatment with Kisqali (ribociclib) in culture, resulting in inhibition of cell growth (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive JQ1 + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the combination of Kisqali (ribociclib) and JQ1 resulted in an additive effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 in culture (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia decreased response Mercaptopurine + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the addition of Kisqali (ribociclib) to Purixan (mercaptopurine) resulted in an antagonistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 in culture (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Everolimus + Ribociclib Preclinical - Cell line xenograft Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Afinitor (everolimus) treatment in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 resulted in decreased Rb1 phosphorylation and a greater inhibition of cell growth compared to either agent alone in culture, and prolonged survival in cell-line xenograft models (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia decreased response Asparaginase + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the addition of Kisqali (ribociclib) to Elspar (asparaginase) resulted in an antagonistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 in culture (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia decreased response Methotrexate + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the addition of Kisqali (ribociclib) to Methotrexate resulted in an antagonistic effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 in culture (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia sensitive Bortezomib + Ribociclib Preclinical - Cell culture Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Velcade (bortezomib) resulted in an additive effect in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and wild-type NOTCH1 in culture (PMID: 28151717). 28151717
NOTCH1 wild-type RB1 wild-type T-cell adult acute lymphocytic leukemia conflicting Dexamethasone + Ribociclib Preclinical - Cell line xenograft Actionable In a preclinical study, the combination of Kisqali (ribociclib) and Adexone (dexamethasone) in a T-cell acute lymphoblastic leukemia cell line harboring wild-type RB1 and NOTCH1 resulted in decreased cell viability and reduced phosphorylation of Rb1 in culture, however, survival did not differ between xenograft models treated with the combination or Kisqali (ribociclib) alone (PMID: 28151717). 28151717
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 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 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
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
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
RB1 I101fs RB1 E268* RB1 V654fs RB1 T738_R775del Her2-receptor negative breast cancer predicted - resistant Fulvestrant + Palbociclib Case Reports/Case Series Actionable In a clinical case study, RB1 mutations including E268*, I101fs, T738_R775del, and V654fs were identified in the circulating tumor DNA of a patient with estrogen receptor positive, progesterone receptor positive, and Erbb2 (Her2)-negative, invasive ductal carcinoma at the time of disease progression after 8 months of Ibrance (palbociclib) and Faslodex (fulvestrant) combination treatment (PMID: 29236940). 29236940
RB1 H483Y Her2-receptor negative breast cancer predicted - resistant Letrozole + Ribociclib Case Reports/Case Series Actionable In a clinical case study, RB1 H48Y was identified in the circulating tumor DNA of a patient with estrogen receptor positive, progesterone receptor positive, and Erbb2 (Her2)-negative, invasive ductal carcinoma at the time of disease progression after 13 months of Kisqali (ribociclib) and Femara (letrozole) combination treatment (PMID: 29236940). 29236940
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 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 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 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
CDKN2A pos RB1 inact mut glioblastoma multiforme resistant Palbociclib Preclinical - Patient cell culture Actionable In a preclinical study, patient-derived glioblastoma cells harboring RB1 truncation mutation and expressing Cdkn2a were resistant to Ibrance (palbociclib) in culture (PMID: 22711607). 22711607
RB1 loss retinoblastoma sensitive Vorinostat Preclinical - Cell culture Actionable In a preclinical study, Zolinza (vorinostat) inhibited growth of retinoblastoma cell lines in culture (PMID: 18483379), which have been demonstrated to be deficient in RB1 (PMID: 23498719). 23498719 18483379
RB1 loss lung small cell carcinoma sensitive Topotecan + Trilaciclib Preclinical - Cell line xenograft Actionable In a preclinical study, the combination of Trilaciclib (G1T28) and Hycamtin (topotecan) inhibited tumor growth in RB1-deficient small cell lung cancer cell line xenograft models, with greater efficacy than Hycamtin (topotecan) alone (PMID: 26826116). 26826116
RB1 loss lung small cell carcinoma resistant Trilaciclib Preclinical - Cell line xenograft Actionable In a preclinical study, RB1-deficient small cell lung cancer cell lines were resistant to Trilaciclib (G1T28) in culture and in xenograft models (PMID: 26826116). 26826116
RB1 loss neuroendocrine tumor sensitive Sirolimus Preclinical Actionable In a preclinical study, Sirolimus (rapamycin) slowed pituitary tumors and decreased the occurrence of thyroid tumors in Rb1+/- mice (PMID: 23454836). 23454836
RB1 loss retinoblastoma sensitive Trichostatin A Preclinical - Cell culture Actionable In a preclinical study, Trichostatin A (TSA) inhibited growth of retinoblastoma cell lines in culture (PMID: 18483379), which have been demonstrated to be deficient in RB1 (PMID: 23498719). 23498719 18483379
RB1 loss estrogen-receptor positive breast cancer resistant Palbociclib Preclinical - Cell culture Actionable In a preclinical study, RB1 loss was associated with acquired resistance to Ibrance (palbociclib) in an estrogen-receptor positive breast cancer cell line in culture (PMID: 27020857). 27020857
RB1 loss retinoblastoma sensitive Sirolimus Preclinical Actionable In a preclinical study, Sirolimus (rapamycin) decreased tumor occurrence, tumor hypoxia and tumor vascularization in a retinoblastoma mouse model with functionally inactivated Rb protein (PMID: 21468343, PMID: 1689463). 21468343 1689463
RB1 loss Advanced Solid Tumor no benefit Palbociclib Preclinical Actionable In preclinical studies, the CDK4/6 inhibitor, Ibrance (palbociclib), was not effective in a variety of solid tumors with Rb1-deficiency (PMID: 26649278). 26649278
RB1 loss retinoblastoma sensitive Entinostat Preclinical - Cell line xenograft Actionable In a preclinical study, Entinostat (MS-275) inhibited growth of retinoblastoma cell lines in culture and inhibited tumor growth in a retinoblastoma cell line xenograft model (PMID: 18483379), which have been demonstrated to be deficient in RB1 (PMID: 23498719). 23498719 18483379
BRAF mut RB1 loss melanoma decreased response Palbociclib Preclinical - Cell culture Actionable In a preclinical study, a melanoma cell line harboring a BRAF mutation and loss of RB1 demonstrated a decreased response to Ibrance (palbociclib) treatment in culture when compared to treatment of melanoma cell lines wild-type for BRAF (PMID: 27488531). 27488531
BRAF mut RB1 loss melanoma decreased response Palbociclib + Trametinib Preclinical - Cell culture Actionable In a preclinical study, a melanoma cell line with a BRAF mutation and loss of RB1 demonstrated minimal sensitivity when treated with the combination of Ibrance (palbociclib) and Mekinist (trametinib) in culture (PMID: 27488531). 27488531
BRAF mut RB1 loss melanoma decreased response Trametinib Preclinical - Cell culture Actionable In a preclinical study, a melanoma cell line harboring a BRAF mutation and RB1 loss demonstrated reduced sensitivity when treated with Mekinist (trametinib) in culture (PMID: 27488531). 27488531
NOTCH1 wild-type RB1 loss T-cell adult acute lymphocytic leukemia resistant Ribociclib Preclinical - Cell culture Actionable In a preclinical study, a T-cell acute lymphoblastic leukemia cell line harboring wild-type NOTCH1 and loss of RB1 demonstrated resistance to Kisqali (ribociclib) in culture, resulting in limited inhibition of cell growth (PMID: 28151717). 28151717
RB1 mutant osteosarcoma sensitive VCN-01 Preclinical - Cell line xenograft Actionable In a preclinical study, VCN-01 decreased viability of a human RB1-mutant primary osteosarcoma cell line in culture, and inhibited tumor growth and decreased lung metastases in xenograft models (PMID: 26603261). 26603261
RB1 mutant estrogen-receptor positive breast cancer predicted - resistant Palbociclib Phase III Actionable In a Phase III trial (PALOMA-3), acquired RB1 mutations were identified in patents with ER-positive, ERBB2 (HER2)-negative breast cancer at the end of treatment in the Faslodex (fulvestrant) plus Ibrance (palbociclib) but not the Faslodex (fulvestrant) plus placebo arm, suggesting a role in conferring resistance to Ibrance (palbociclib) (PMID: 30206110; NCT01942135). 30206110
Clinical Trial Phase Therapies Title Recruitment Status