patritumab deruxtecan (U3-1402) / Daiichi Sankyo, Merck (MSD) 
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  • ||||||||||  patritumab deruxtecan (U3-1402) / Daiichi Sankyo, Merck (MSD)
    Trial completion date, Trial primary completion date, Metastases:  U31402-A-J101: Phase I/II Study of U3-1402 in Subjects With Human Epidermal Growth Factor Receptor 3 (HER3) Positive Metastatic Breast Cancer (clinicaltrials.gov) -  Dec 3, 2020   
    P1/2,  N=180, Active, not recruiting, 
    Secondary objectives include the evaluation of efficacy as measured by ORR (assessed by investigator according to RECIST v1.1), duration of response, time to tumor response, disease control rate, progression-free survival (assessed by investigator and BICR according to RECIST v1.1), overall survival, safety and tolerability, HER3 protein expression in tumor tissue and relationship with efficacy, and pharmacokinetic properties. Trial completion date: Dec 2020 --> Dec 2021 | Trial primary completion date: Sep 2020 --> Feb 2021
  • ||||||||||  patritumab deruxtecan (U3-1402) / Daiichi Sankyo, Merck (MSD)
    Enrollment open, Metastases:  A Study to Evaluate U3-1402 in Subjects With Advanced or Metastatic Colorectal Cancer (clinicaltrials.gov) -  Sep 16, 2020   
    P2,  N=80, Recruiting, 
    The activity of U3-1402 was driven by HER3-mediated payload delivery via high internalization into tumor cells. Not yet recruiting --> Recruiting
  • ||||||||||  patritumab deruxtecan (U3-1402) / Daiichi Sankyo
    Journal, PD(L)-1 Biomarker, IO Biomarker:  U3-1402 sensitizes HER3-expressing tumors to PD-1 blockade by immune activation. (Pubmed Central) -  Jul 22, 2020   
    Further, clinical analyses indicated that tumor-specific HER3 expression was frequently observed in patients with PD-1 inhibitor-resistant solid tumors. Overall, U3-1402 is a promising candidate as a partner of immunotherapy for such patients.
  • ||||||||||  U3-1402 / Daiichi Sankyo
    EGFR inhibition enhances the cellular uptake and antitumor activity of the novel HER3 antibody drug conjugate U3-1402 (Virtual Meeting II: E-Posters) -  May 16, 2020 - Abstract #AACRII2020AACR-II_1059;    
    P1
    HER3 is frequently over expressed in EGFR-mutant NSCLC.U3-1402 is an antibody-drug conjugate (ADC) comprised of HER3-targeting antibody (patritumab) linked to a topoisomerase I inhibitor (DX-8951 derivative, or DXd)...We aimed to develop a preclinical strategy to enhance the efficacy of U3-1402.Pre-treatment with EGFR TKIs (gefitinib or osimertinib) increased HER3 membrane levels in six different EGFR-mutant cell lines by increasing both the amount of HER3 positive cells and the intensity of HER3 expression...In vivo experiments evaluating the antitumor efficacy of the combination of osimertinib and U3-1402 are currently underway.Our studies reveal that EGFR inhibitor treatment increased membrane expression of HER3 which was associated with enhanced internalization of U3-1402 in EGFR-mutant NSCLC. The combination of osimertinib and U3-1402 may be an effective treatment approach and should be evaluated in future clinical trials in patients with EGFR-mutant NSCLC.
  • ||||||||||  U3-1402 / Daiichi Sankyo
    [VIRTUAL] ERBB3 mRNA expression in breast cancer (BC): A SOLTI biomarker discovery analysis (Channel 2) -  Apr 17, 2020 - Abstract #ESMOBCI2020ESMO_BC_I_134;    
    The assay using FFPE tissues is feasible and reliable. The predictive value of this biomarker will be prospectively tested in the upcoming SOLTI-1805 TOT-HER3 window trial using the U3-1402 anti-HER3 antibody-drug conjugate.Legal entity responsible for the study: SOLTI Breast Cancer Group.
  • ||||||||||  U3-1402 / Daiichi Sankyo
    U3-1402 (HER3-directed ADC) (STARLIGHT BALLROOM) -  Feb 21, 2020 - Abstract #IASLCLCTT2020IASLC_LCTT_208;    
  • ||||||||||  patritumab deruxtecan (U3-1402) / Daiichi Sankyo, Merck (MSD)
    Enrollment change, Trial completion date, Trial primary completion date, Metastases:  U31402-A-U102: HER3-DXd in Metastatic or Unresectable Non-Small Cell Lung Cancer (clinicaltrials.gov) -  May 21, 2019   
    P1,  N=130, Recruiting, 
    Patients receiving at least 1 dose of U3-1402 with pretreatment and posttreatment tumor assessments will be evaluated for efficacy. N=63 --> 130 | Trial completion date: Feb 2020 --> Oct 2023 | Trial primary completion date: Feb 2020 --> Oct 2021
  • ||||||||||  patritumab deruxtecan (U3-1402) / Daiichi Sankyo, Merck (MSD)
    Enrollment open, Trial primary completion date, Metastases:  U31402-A-U102: HER3-DXd in Metastatic or Unresectable Non-Small Cell Lung Cancer (clinicaltrials.gov) -  Nov 21, 2017   
    P1,  N=63, Recruiting, 
    Trial completion date: Dec 2018 --> Dec 2020 | Trial primary completion date: Sep 2018 --> Sep 2020 Not yet recruiting --> Recruiting | Trial primary completion date: Oct 2017 --> Feb 2020