patritumab (U3-1287) / Amgen, Daiichi Sankyo 
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 21 Diseases   1 Trial   1 Trial   147 News 


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  • ||||||||||  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.
  • ||||||||||  Herceptin (trastuzumab) / Roche
    Journal:  Targeting of the HER2/HER3 signaling axis overcomes ligand-mediated resistance to trastuzumab in HER2-positive breast cancer. (Pubmed Central) -  Apr 17, 2020   
    Finally, in heregulin-expressing BT474-HRG and JIMT-1 xenograft models, the addition of pertuzumab and patritumab to trastuzumab also enhanced antitumor efficacy leading to tumor regression. The current study found that triple blockade of HER2 and HER3 using trastuzumab, pertuzumab, and patritumab could overcome resistance to trastuzumab therapy in heregulin-expressing and HER2-positive breast cancer, which could be exploited clinically.
  • ||||||||||  patritumab (U3-1287) / Amgen, Daiichi Sankyo
    Phase classification, Trial termination, Trial primary completion date:  Phase 1b/2 Study of U3-1287 in Combination With Trastuzumab Plus Paclitaxel in Newly Diagnosed Metastatic Breast Cancer (MBC) (clinicaltrials.gov) -  Oct 17, 2017   
    P1b/2,  N=29, Terminated, 
    Trial primary completion date: Dec 2018 --> Dec 2020 Phase classification: P1/2 --> P1b/2 | Active, not recruiting --> Terminated | Trial primary completion date: Jul 2015 --> Jan 2015; Improved, different standard of care caused business decision to terminate
  • ||||||||||  patritumab (U3-1287) / Amgen, Daiichi Sankyo
    Trial termination, Trial primary completion date, Combination therapy, Metastases:  Study of Patritumab in Combination With Erlotinib in Subjects With Locally Advanced or Metastatic Non-Small-Cell Lung Cancer (NSCLC). (HER3-Lung) (clinicaltrials.gov) -  Aug 28, 2017   
    P3,  N=724, Terminated, 
    Phase classification: P1/2 --> P1b/2 | Active, not recruiting --> Terminated | Trial primary completion date: Jul 2015 --> Jan 2015; Improved, different standard of care caused business decision to terminate Active, not recruiting --> Terminated | Trial primary completion date: Jun 2018 --> Nov 2016; Pre-defined criteria for continuation were not reached
  • ||||||||||  patritumab (U3-1287) / Amgen, Daiichi Sankyo
    Trial termination, Metastases:  Evaluation of 64Cu-DOTA-U3-1287 in Subjects With Advanced Solid Tumors (clinicaltrials.gov) -  Dec 18, 2013   
    P1,  N=12, Terminated, 
    Recruiting --> Completed Recruiting --> Terminated; treatment was not working
  • ||||||||||  patritumab (U3-1287) / Amgen, Daiichi Sankyo
    Enrollment change, Metastases:  Evaluation of 64Cu-DOTA-U3-1287 in Subjects With Advanced Solid Tumors (clinicaltrials.gov) -  Dec 18, 2013   
    P1,  N=12, Terminated, 
    Recruiting --> Terminated; treatment was not working N=25 --> 12