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    GENE:

    RAD51B (RAD51 Paralog B)

    i
    Other names: RAD51B, RAD51 Paralog B, DNA Repair Protein RAD51 Homolog 2, RAD51 Homolog B, RAD51L1, R51H2, RAD51 Homolog B (S. Cerevisiae), RAD51 (S. Cerevisiae)-Like 1, RAD51-Like 1 (S. Cerevisiae), RAD51-Like Protein 1, RecA-Like Protein, Rad51B
    16h
    KNIGHTS: High-Risk Metachronous Oligometastatic Prostate Cancer Trial (clinicaltrials.gov)
    P2, N=88, Active, not recruiting, University of Maryland, Baltimore | Recruiting --> Active, not recruiting
    Enrollment closed
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    TP53 (Tumor protein P53) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • ATM (ATM serine/threonine kinase) • CHEK2 (Checkpoint kinase 2) • FANCA (FA Complementation Group A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • CD4 (CD4 Molecule) • RAD54L (DNA Repair And Recombination Protein RAD54)
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    TP53 mutation • BRCA2 mutation • BRCA1 mutation • ATM mutation • PALB2 mutation • CHEK2 mutation • BRIP1 mutation • RAD51B mutation • RAD54L mutation
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    Zejula (niraparib) • abiraterone acetate • prednisone
    7d
    Beyond MDM2 amplification: chromosomal translocations as diagnostic drivers in adipocytic tumours-a histopathological and molecular reappraisal. (PubMed, Malays J Pathol)
    HMGA2 and PLAG1 are considered the most important altered genes in most adipocytic tumours subset and lipoblastoma, and identification of their partners is valuable in providing the accurate diagnosis and management especially when the histopathologic diagnosis is unclear.
    Review • Journal
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    MDM2 (E3 ubiquitin protein ligase) • EWSR1 (EWS RNA Binding Protein 1) • RAD51B (RAD51 Paralog B) • FUS (FUS RNA Binding Protein) • PPP2R2A (Protein Phosphatase 2, Regulatory Subunit B, Alpha) • HMGA2 (High mobility group AT-hook 2) • NFIB (Nuclear Factor I B) • COL3A1 (Collagen Type III Alpha 1 Chain) • DDIT3 (DNA-damage-inducible transcript 3) • EP400 (E1A Binding Protein P400) • PLAG1 (PLAG1 Zinc Finger) • HAS2 (Hyaluronan Synthase 2) • HNRNPA2B1 (Heterogeneous Nuclear Ribonucleoprotein A2/B1) • HNRNPC (Heterogeneous Nuclear Ribonucleoprotein C) • KLF10 (Kruppel Like Factor 10) • SRSF3 (Serine And Arginine Rich Splicing Factor 3) • YWHAZ (Tyrosine 3-Monooxygenase/Tryptophan 5-Monooxygenase Activation Protein Zeta)
    7d
    NCI10217: Testing the Combination of the Anti-cancer Drugs Copanlisib, Olaparib, and MEDI4736 (Durvalumab) in Patients With Advanced Solid Tumors With Selected Mutations (clinicaltrials.gov)
    P1, N=39, Active, not recruiting, National Cancer Institute (NCI) | Trial completion date: Sep 2026 --> Dec 2026
    Trial completion date
    |
    PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • RAD51 (RAD51 Homolog A) • FANCA (FA Complementation Group A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • CD4 (CD4 Molecule) • RAD51D (RAD51 paralog D) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin))
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    PIK3CA mutation • PTEN mutation • PALB2 mutation • CDK12 mutation • BARD1 mutation
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    Lynparza (olaparib) • Imfinzi (durvalumab) • Aliqopa (copanlisib)
    9d
    CX-5461-04: Study of CX-5461 in Patients With Solid Tumours and BRCA1/2, PALB2 or Homologous Recombination Deficiency (HRD) Mutation (clinicaltrials.gov)
    P1, N=52, Recruiting, Senhwa Biosciences, Inc. | Trial completion date: Dec 2026 --> Mar 2027 | Trial primary completion date: Dec 2025 --> Mar 2027
    Trial completion date • Trial primary completion date
    |
    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • CCNE1 (Cyclin E1) • KMT2D (Lysine Methyltransferase 2D) • CDK12 (Cyclin dependent kinase 12) • KMT2C (Lysine Methyltransferase 2C) • SLFN11 (Schlafen Family Member 11) • CHEK2 (Checkpoint kinase 2) • CREBBP (CREB binding protein) • RAD51 (RAD51 Homolog A) • FANCA (FA Complementation Group A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD50 (RAD50 Double Strand Break Repair Protein) • RAD51D (RAD51 paralog D) • CHEK1 (Checkpoint kinase 1) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCF (FA complementation group F) • FANCL (FA Complementation Group L) • RBBP8 (RB Binding Protein 8, Endonuclease) • XRCC2 (X-Ray Repair Cross Complementing 2) • ERCC4 (ERCC Excision Repair 4, Endonuclease Catalytic Subunit) • FANCI (FA Complementation Group I) • FANCM (FA Complementation Group M) • MAD2L2 (Mitotic Arrest Deficient 2 Like 2) • CDC25C (Cell Division Cycle 25C) • FANCD2 (FA Complementation Group D2) • FANCE (FA Complementation Group E) • FANCG (FA Complementation Group G) • MUS81 (MUS81 Structure-Specific Endonuclease Subunit) • CDC25A (Cell Division Cycle 25A) • FANCB (FA Complementation Group B) • FANCC (FA Complementation Group C) • GNRP (Ras-Specific Guanine Nucleotide-Releasing Factor 1) • RAD17 (RAD17 Checkpoint Clamp Loader Component) • SLX4 (SLX4 Structure-Specific Endonuclease Subunit)
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    BRCA2 mutation • BRCA1 mutation • PALB2 mutation
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    pidnarulex (CX-5461)
    15d
    A Phase I/II Study of Sacituzumab Govitecan Plus Berzosertib in Small Cell Lung Cancer, Extra-Pulmonary Small Cell Neuroendocrine Cancer and Homologous Recombination-Deficient Cancers Resistant to PARP Inhibitors (clinicaltrials.gov)
    P1/2, N=35, Active, not recruiting, National Cancer Institute (NCI) | Recruiting --> Active, not recruiting | N=120 --> 35
    Enrollment closed • Enrollment change
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • CDK12 (Cyclin dependent kinase 12) • BRCA (Breast cancer early onset) • CHEK2 (Checkpoint kinase 2) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • CHEK1 (Checkpoint kinase 1) • BARD1 (BRCA1 Associated RING Domain 1) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCL (FA Complementation Group L) • PPP2R2A (Protein Phosphatase 2, Regulatory Subunit B, Alpha)
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    BRCA1 mutation • ATM mutation • PALB2 mutation • CDK12 mutation • CHEK2 mutation • BRIP1 mutation • RAD51C mutation • RAD51D mutation • RAD51B mutation • BARD1 mutation • CHEK1 mutation • RAD54L mutation
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    berzosertib (M6620) • Trodelvy (sacituzumab govitecan-hziy)
    28d
    A comprehensive genomic framework for identifying genes predisposing to homologous recombination repair-deficient breast or ovarian cancer. (PubMed, BJC Rep)
    Our approach provides a framework for the identification of candidate HRD-related CSGs through combined statistical and clinico-genomics analyses. It is adaptable to other mutational signatures/cancer types and will be most effective when applied to larger and well-annotated datasets.
    Journal • BRCA Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • BRCA (Breast cancer early onset) • RAD51B (RAD51 Paralog B) • FANCD2 (FA Complementation Group D2)
    29d
    HARMONY: Niraparib, Abiraterone Acetate and Prednisone for mHSPC With Deleterious Homologous Recombination Repair Alterations (clinicaltrials.gov)
    P2, N=0, Withdrawn, Qian Qin | Trial completion date: Apr 2028 --> Jan 2029 | Trial primary completion date: Apr 2027 --> Jan 2028
    Trial completion date • Trial primary completion date
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • BRCA (Breast cancer early onset) • CHEK2 (Checkpoint kinase 2) • FANCA (FA Complementation Group A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD54L (DNA Repair And Recombination Protein RAD54)
    |
    docetaxel • abiraterone acetate • Akeega (abiraterone/niraparib)
    1m
    A Phase I/II Study of Sacituzumab Govitecan Plus Berzosertib in Small Cell Lung Cancer, Extra-Pulmonary Small Cell Neuroendocrine Cancer and Homologous Recombination-Deficient Cancers Resistant to PARP Inhibitors (clinicaltrials.gov)
    P1/2, N=120, Recruiting, National Cancer Institute (NCI) | Trial completion date: Mar 2027 --> Mar 2029 | Trial primary completion date: Mar 2026 --> Mar 2028
    Trial completion date • Trial primary completion date
    |
    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • CDK12 (Cyclin dependent kinase 12) • BRCA (Breast cancer early onset) • CHEK2 (Checkpoint kinase 2) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • CHEK1 (Checkpoint kinase 1) • BARD1 (BRCA1 Associated RING Domain 1) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCL (FA Complementation Group L) • PPP2R2A (Protein Phosphatase 2, Regulatory Subunit B, Alpha)
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    BRCA1 mutation • ATM mutation • PALB2 mutation • CDK12 mutation • CHEK2 mutation • BRIP1 mutation • RAD51C mutation • RAD51D mutation • RAD51B mutation • BARD1 mutation • CHEK1 mutation • RAD54L mutation
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    berzosertib (M6620) • Trodelvy (sacituzumab govitecan-hziy)
    2ms
    BCDX2-CX3 and DX2-CX3 complexes assemble and stabilize RAD51 filaments. (PubMed, Nature)
    These distinct assemblies are differentially regulated by ATPase activity, defining a dynamic BCDX2-CX3 "loader" and a stable DX2-CX3 "anchor" that provide functional modularity to the HR machinery. This work provides a unifying mechanism for human RAD51 paralog function and delivers an atomic blueprint for interpreting disease-causing mutations.
    Journal
    |
    RAD51 (RAD51 Homolog A) • RAD51B (RAD51 Paralog B) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • XRCC2 (X-Ray Repair Cross Complementing 2) • XRCC3 (X-Ray Repair Cross Complementing 3)
    3ms
    PARPi-PANC: Niraparib as First Line Therapy With Metastatic Homologous Repair-deficient Pancreatic Cancer (clinicaltrials.gov)
    P2, N=2, Terminated, Centre Leon Berard | Withdrawn --> Terminated; Study not feasible, patient accrual rate too low.
    Trial termination
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • FANCA (FA Complementation Group A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCL (FA Complementation Group L) • PPP2R2A (Protein Phosphatase 2, Regulatory Subunit B, Alpha) • FANCD2 (FA Complementation Group D2)
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    Zejula (niraparib)
    3ms
    Pembrolizumab, Olaparib, and Temozolomide for People With Glioma (clinicaltrials.gov)
    P2, N=57, Recruiting, Memorial Sloan Kettering Cancer Center | Trial completion date: Jan 2026 --> Jan 2027 | Trial primary completion date: Jan 2026 --> Jan 2027
    Trial completion date • Trial primary completion date
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    EGFR (Epidermal growth factor receptor) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • CDKN2A (Cyclin Dependent Kinase Inhibitor 2A) • FGFR (Fibroblast Growth Factor Receptor) • CDK12 (Cyclin dependent kinase 12) • CDKN2B (Cyclin Dependent Kinase Inhibitor 2B) • CHEK2 (Checkpoint kinase 2) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • CHEK1 (Checkpoint kinase 1) • BARD1 (BRCA1 Associated RING Domain 1) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCL (FA Complementation Group L) • PPP2R2A (Protein Phosphatase 2, Regulatory Subunit B, Alpha)
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    CDKN2A deletion • BRIP1 mutation • RAD51C mutation • RAD51B mutation • BARD1 mutation • IDH wild-type
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    Keytruda (pembrolizumab) • Lynparza (olaparib) • temozolomide
    3ms
    Phase II Trial of the PARP Inhibitor Niraparib and PD-1 Inhibitor Dostarlimab in Patients With Advanced Cancers With Active Progressing Brain Metastases (STARLET) (clinicaltrials.gov)
    P2, N=120, Recruiting, M.D. Anderson Cancer Center | Trial completion date: Feb 2026 --> Dec 2029 | Trial primary completion date: Feb 2026 --> Dec 2029
    Trial completion date • Trial primary completion date
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    PD-L1 (Programmed death ligand 1) • HRD (Homologous Recombination Deficiency) • CDK12 (Cyclin dependent kinase 12) • CHEK2 (Checkpoint kinase 2) • RAD51 (RAD51 Homolog A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • CHEK1 (Checkpoint kinase 1) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCL (FA Complementation Group L) • RAD52 (RAD52 Homolog DNA Repair Protein)
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    PD-L1 expression
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    Zejula (niraparib) • Jemperli (dostarlimab-gxly)