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    GENE:

    RAD51C (RAD51 paralog C)

    i
    Other names: RAD51C, RAD51 paralog C, R51H3, BROVCA3, RAD51L2
    4d
    Results of a multigene panel testing approach targeting patients with suspected genetic predisposition to pancreatic ductal adenocarcinoma. (PubMed, Eur J Hum Genet)
    An exploratory approach consisting of unmasking the results of the NGS analysis of 123 « research » genes involved in the carcinogenesis was applied to the 447 patients tested negative for the different genes of our diagnostic panel. This approach failed to identify other susceptibility genes to pancreatic adenocarcinoma.
    Journal • BRCA Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • ATM (ATM serine/threonine kinase) • STK11 (Serine/threonine kinase 11) • CDKN2A (Cyclin Dependent Kinase Inhibitor 2A) • PALB2 (Partner and localizer of BRCA2) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • PMS2 (PMS1 protein homolog 2) • APC (APC Regulator Of WNT Signaling Pathway) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
    10d
    Niraparib in Tumors Metastatic to the CNS (clinicaltrials.gov)
    P2, N=20, Active, not recruiting, Massachusetts General Hospital | Trial primary completion date: Dec 2025 --> Dec 2026
    Trial primary completion date
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • BAP1 (BRCA1 Associated Protein 1) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD50 (RAD50 Double Strand Break Repair Protein) • PARP1 (Poly(ADP-Ribose) Polymerase 1) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • RAD54L (DNA Repair And Recombination Protein RAD54) • XRCC2 (X-Ray Repair Cross Complementing 2) • RAD54B (RAD54 Homolog B) • XRCC3 (X-Ray Repair Cross Complementing 3)
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    HRD • ATM mutation • PALB2 mutation • BRIP1 mutation • RAD51C mutation • RAD51D mutation • RAD51B mutation • BARD1 mutation • RAD54L mutation
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    Zejula (niraparib)
    10d
    NePtune: Study of Neoadjuvant PARP Inhibition Followed by Radical Prostatectomy in Patients With Unfavorable Intermediate-Risk or High-Risk Prostate Cancer With Select HRR Gene Alterations (clinicaltrials.gov)
    P2, N=32, Recruiting, Rana McKay, MD | Trial primary completion date: Dec 2025 --> Mar 2026
    Trial primary completion date
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • CDK12 (Cyclin dependent kinase 12) • CHEK2 (Checkpoint kinase 2) • 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) • RAD54L2 (RAD54 Like 2)
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    Lynparza (olaparib) • triptorelin • goserelin acetate • leuprolide acetate for depot suspension
    11d
    An Open-label, First-in-Human, Dose-Escalation and Dose-Expansion Phase I/II Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of SPR1020 in Patients With Advanced Solid Tumors (clinicaltrials.gov)
    P1/2, N=210, Not yet recruiting, Shanghai SciBrunch Therapeutics Co., Ltd.
    New P1/2 trial • First-in-human
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    HER-2 (Human epidermal growth factor receptor 2) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • BRCA (Breast cancer early onset) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
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    HER-2 negative • HRD • PALB2 mutation • RAD51C mutation • BRCA mutation
    11d
    Nivolumab + Docetaxel + ADT in mHSPC Patients With DDRD or Inflamed Tumors (clinicaltrials.gov)
    P2, N=60, Active, not recruiting, Xiao X. Wei, MD | Trial completion date: Dec 2025 --> Jun 2026
    Trial completion date
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    PD-L1 (Programmed death ligand 1) • BRCA1 (Breast cancer 1, early onset) • MSI (Microsatellite instability) • CD8 (cluster of differentiation 8) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • CDK12 (Cyclin dependent kinase 12) • CHEK2 (Checkpoint kinase 2) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • ABRAXAS1 (Abraxas 1 BRCA1 A Complex Subunit 2) • GEN1 (GEN1 Holliday junction 5' flap endonuclease)
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    PD-L1 expression • MSI-H/dMMR
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    OncoPanel™ Assay
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    Opdivo (nivolumab) • docetaxel • goserelin acetate • Firmagon (degarelix) • leuprolide acetate for depot suspension
    12d
    Hereditary Risk Assessment of Cancer Using Clinical History in Patients Diagnosed with Breast or Ovarian Cancer Receiving Treatment at Tertiary Care Hospital in Western Rajasthan - A Cross-sectional Study. (PubMed, Ann Afr Med)
    Genetic counseling and testing for patients diagnosed with breast or OC can identify HBOC risk, reducing complications and mitigating lifetime cancer risk through timely assessment and awareness.
    Observational data • Journal
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PALB2 (Partner and localizer of BRCA2) • CHEK2 (Checkpoint kinase 2) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • BARD1 (BRCA1 Associated RING Domain 1)
    13d
    Fluzoparib as Adjuvant Treatment in Patients With Germline Homologous Recombination Repair (HRR) Mutated Primary Breast Cancer (Flamenco) (clinicaltrials.gov)
    P2, N=334, Not yet recruiting, Fudan University
    New P2 trial • IO biomarker
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    HER-2 (Human epidermal growth factor receptor 2) • PGR (Progesterone receptor) • RAD51 (RAD51 Homolog A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD50 (RAD50 Double Strand Break Repair Protein) • PARP1 (Poly(ADP-Ribose) Polymerase 1) • RAD51D (RAD51 paralog D) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCM (FA Complementation Group M) • RAD52 (RAD52 Homolog DNA Repair Protein) • RPA1 (Replication Protein A1) • PARP2 (Poly(ADP-Ribose) Polymerase 2)
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    HER-2 negative • PALB2 mutation • PGR positive • BRIP1 mutation • RAD51C mutation • RAD51D mutation • RAD51B mutation • BARD1 mutation • RAD54L mutation
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    capecitabine • AiRuiYi (fluzoparib)
    18d
    High-throughput mapping of 6,888 RAD51D variants identifies distinct biochemical functions needed for homologous recombination and olaparib response. (PubMed, bioRxiv)
    Together, we identify hotspots of deleterious RAD51D variants and uncover the mechanisms by which variants compromise its biochemical functions. Used a multiplexed assay of functional effect (MAVE) to assess the functionality via olaparib sensitivity of 6,888 RAD51D coding variants, which can be used for variant classification Provided cellular functional analysis for 70 clinically-identified breast and ovarian cancer RAD51D variants Identified key regions and enzymatic activities of RAD51D critical for its function in the BCDX2 and the X3CDX2 complexesDetermined mechanism of RAD51D-mediated regulation of BCDX2 ATPase activity.
    Journal
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    RAD51 (RAD51 Homolog A) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
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    Lynparza (olaparib)
    21d
    Genetic tumor syndromes in female cancer: insights into inherited cancer predisposition and clinical implications. (PubMed, Arch Gynecol Obstet)
    This review provides a comprehensive overview of hereditary tumor syndromes predisposing to breast and gynecologic malignancies, with a focus on genetic basis, associated cancer risks, and implications for clinical management. By delineating these syndromes, it aims to assist clinicians in recognizing hereditary cancer predisposition and in guiding affected individuals within routine senologic and gynecologic practice.
    Review • Journal • BRCA Biomarker • PARP Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PTEN (Phosphatase and tensin homolog) • PALB2 (Partner and localizer of BRCA2) • SMARCA4 (SWI/SNF related, matrix associated, actin dependent regulator of chromatin, subfamily A, member 4) • BRCA (Breast cancer early onset) • CHEK2 (Checkpoint kinase 2) • 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)) • DICER1 (Dicer 1 Ribonuclease III)
    22d
    A Study of Olaparib and Pembrolizumab in People With Triple Negative Breast Cancer (TNBC) or Hormone Receptor-positive HER2-negative Breast Cancer (clinicaltrials.gov)
    P2, N=23, Active, not 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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    HER-2 (Human epidermal growth factor receptor 2) • PGR (Progesterone receptor) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
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    HR positive • HER-2 negative • PALB2 mutation • RAD51C mutation • RAD51D mutation • HR positive + HER-2 negative • HER-2 negative + HR positive + BRCA mutation
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    Keytruda (pembrolizumab) • Lynparza (olaparib)
    22d
    Leveraging tumor multigene panel testing to identify germline variants in gynecologic cancers: A retrospective evaluation of an algorithm-based approach. (PubMed, Gynecol Oncol)
    A conservative (specificity-focused) tumor-guided algorithm demonstrated high positive predictive value for identifying germline pathogenic variants and may provide a cost-effective means of prioritizing genetic counselling and germline testing in resource-limited settings.
    Retrospective data • Journal • BRCA Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PALB2 (Partner and localizer of BRCA2) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • BRCA (Breast cancer early onset) • CHEK2 (Checkpoint kinase 2) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
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    RAD51D mutation
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    TruSight Oncology 500 Assay
    25d
    Prevalence of Germline Variants in Breast, Ovarian, and Prostate Cancer in Uruguay. (PubMed, Clin Genet)
    Genetic testing should be considered for all cancer patients in Uruguay, regardless of ancestry or tumor type. Further research is needed to better understand the role of less-characterized genes in BC, OvC, and PCa predisposition.
    Journal • BRCA Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • ATM (ATM serine/threonine kinase) • BRCA (Breast cancer early onset) • RAD51C (RAD51 paralog C) • MUTYH (MutY homolog)