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    GENE:

    RAD51C (RAD51 paralog C)

    i
    Other names: RAD51C, RAD51 paralog C, R51H3, BROVCA3, RAD51L2
    1d
    Olaparib in Men With High-Risk Biochemically-Recurrent Prostate Cancer Following Radical Prostatectomy, With Integrated Biomarker Analysis (clinicaltrials.gov)
    P2, N=51, Active, not recruiting, Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins | Trial completion date: May 2026 --> May 2027
    Trial completion date
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • ATM (ATM serine/threonine kinase) • CDK12 (Cyclin dependent kinase 12) • 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) • 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
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    Lynparza (olaparib)
    1d
    D5330C00004: Ascending Doses of Ceralasertib in Combination With Chemotherapy and/or Novel Anti Cancer Agents (clinicaltrials.gov)
    P1, N=354, Active, not recruiting, AstraZeneca | Phase classification: P1/2 --> P1
    Phase classification
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    HER-2 (Human epidermal growth factor receptor 2) • ATM (ATM serine/threonine kinase) • 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
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    Lynparza (olaparib) • carboplatin • Imfinzi (durvalumab) • ceralasertib (AZD6738) • saruparib (AZD5305)
    2d
    Real-world genetic testing data of ovarian cancer patients: Informing counseling and risk reduction in patients over age seventy. (PubMed, Gynecol Oncol)
    Despite lower prevalence, a clinically meaningful proportion of patients ≥70 harbor actionable P/LP variants, often without FH that would prompt risk-reducing interventions. These findings suggest reduced sensitivity of FH-based risk assessment in older individuals, supporting age-inclusive genetic counseling and testing strategies extending beyond FH-based criteria.
    Journal • Real-world evidence • BRCA Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PALB2 (Partner and localizer of BRCA2) • PMS2 (PMS1 protein homolog 2) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
    4d
    Efficacy of olaparib in advanced cancers with somatic or germline mutations in BAP1, BARD1, BRIP1 and PALB2. (PubMed, ESMO Open)
    Olaparib demonstrated meaningful clinical activity across different cancer types with somatic or germline mutations in BAP1, BARD1, BRIP1 and PALB2.
    Journal • BRCA Biomarker • PARP Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • ARID1A (AT-rich interaction domain 1A) • BAP1 (BRCA1 Associated Protein 1) • PALB2 (Partner and localizer of BRCA2) • CDK12 (Cyclin dependent kinase 12) • ATRX (ATRX Chromatin Remodeler) • 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) • MRE11A (MRE11 homolog, double strand break repair nuclease) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • RAD21 (RAD21 Cohesin Complex Component) • DDR2 (Discoidin domain receptor 2) • ERCC4 (ERCC Excision Repair 4, Endonuclease Catalytic Subunit) • RAD52 (RAD52 Homolog DNA Repair Protein) • FANCE (FA Complementation Group E) • GEN1 (GEN1 Holliday junction 5' flap endonuclease) • SLX4 (SLX4 Structure-Specific Endonuclease Subunit)
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    BRCA2 mutation • BRCA1 mutation • HRD • ARID1A mutation • PALB2 mutation • CDK12 mutation • BRIP1 mutation • RAD51C mutation • RAD51D mutation • BARD1 mutation • CHEK1 mutation
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    Lynparza (olaparib)
    5d
    Transvaginal Ultrasound and Photoacoustic Imaging of Ovary (clinicaltrials.gov)
    P=N/A, N=185, Terminated, Washington University School of Medicine | N=310 --> 185 | Trial completion date: Jan 2027 --> Mar 2026 | Recruiting --> Terminated | Trial primary completion date: Jan 2027 --> Mar 2026; Loss of space for imaging
    Enrollment change • Trial completion date • Trial termination • Trial primary completion date
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • EPCAM (Epithelial cell adhesion molecule) • BARD1 (BRCA1 Associated RING Domain 1)
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    BARD1 mutation
    6d
    Genetic and Immunohistochemical Profiling of Malignant Mesothelioma With Brain Metastasis: A Report of Two Cases. (PubMed, Cancer Rep (Hoboken))
    To our knowledge, this represents the first reported genetic profiling of MM with BM. The TP53 frameshift mutation is unusual for MM, and its potential association with rapid disease progression warrants further investigation. Given the aggressive nature of MM, SRS may be preferable to WBRT due to its shorter treatment time and ease of combination with systemic regimens.
    Journal
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    TP53 (Tumor protein P53) • RAD51C (RAD51 paralog C)
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    TP53 mutation • RAD51C mutation
    9d
    Lorigerlimab (MGD019) in Patients With Pancreatic Adenocarcinoma and Homologous Recombination Deficiency (clinicaltrials.gov)
    P2, N=40, Not yet recruiting, Peter Hosein, MD
    New P2 trial
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
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    BRCA2 mutation • BRCA1 mutation • PALB2 mutation • RAD51C mutation • RAD51D mutation
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    docetaxel • lorigerlimab (MGD019)
    13d
    Pancreatic Adenocarcinoma Associated With a Germline RAD51C Mutation. (PubMed, ACG Case Rep J)
    RAD51C plays a critical role in homologous recombination DNA repair, and its loss may confer sensitivity to platinum-based chemotherapy and poly (ADP-ribose) polymerase inhibitors. This case represents only the second reported RAD51C-associated PDAC and reinforces the importance of universal germline testing to identify hereditary risk and guide therapeutic strategies.
    Journal
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    HER-2 (Human epidermal growth factor receptor 2) • RAD51C (RAD51 paralog C)
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    HER-2 negative • RAD51C mutation
    14d
    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
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    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)
    15d
    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
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    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)
    17d
    Genome-wide CRISPR screens identify DNA repair and R-loop suppression as regulators of the cellular sensitivity to environmentally relevant Bisphenol A exposure. (PubMed, bioRxiv)
    Moreover, we show that BPA exposure increases the formation of R-loops which are resolved by DDX21. Our study suggests that BPA exposure at environmentally relevant doses can cause DNA damage, highlighting the relevance of BPA for carcinogenesis.
    Journal
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    RAD51C (RAD51 paralog C)
    20d
    Immuno-molecular features associated with exceptional recurrence-free survivorship from Ovarian Cancer in the pre-PARP era. (PubMed, NPJ Genom Med)
    Overall, exceptional survival in HGSOC is associated with younger age, enrichment of BRCA2 mutations and BRCA1/RAD51C methylation, reduced CCNE1 amplification, and a competent antitumor immune response. These findings highlight potential biomarkers for refining risk stratification and guiding personalized therapeutic strategies in ovarian cancer management.
    Journal • BRCA Biomarker • PARP Biomarker
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    TP53 (Tumor protein P53) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • CD20 (Membrane Spanning 4-Domains A1) • RB1 (RB Transcriptional Corepressor 1) • CD8 (cluster of differentiation 8) • CCNE1 (Cyclin E1) • BRCA (Breast cancer early onset) • RAD51C (RAD51 paralog C) • PARP1 (Poly(ADP-Ribose) Polymerase 1) • CD4 (CD4 Molecule) • RAD51D (RAD51 paralog D) • FOXP3 (Forkhead Box P3)
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    TP53 mutation • BRCA2 mutation • BRCA1 mutation • HRD • RAD51C mutation