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    Home > Biochemistry News > Biotechnology News > Bicyclic peptide accurately delivers cytotoxic drugs to treat bladder cancer and ovarian cancer, clinical results are positive

    Bicyclic peptide accurately delivers cytotoxic drugs to treat bladder cancer and ovarian cancer, clinical results are positive

    • Last Update: 2021-11-05
    • Source: Internet
    • Author: User
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    Bicycle Therapeutics today announced that two new-generation bicyclic peptide-conjugated toxins have shown positive anti-cancer activity in phase 1 clinical trials


    Bicycle company uses bicyclic peptide technology (named Bicycle) to develop differentiated therapies


    BT5528 is a bicyclic peptide-conjugated toxin targeting EphA2


    ▲Introduction to BT5528 (picture source: Bicycle Therapeutics official website)

    In this phase 1 clinical trial, cancer patients who had received multiple pre-treatments (median number of treatments were 7) received BT5528 treatment


    Two patients with urothelial cancer received treatment, and they both achieved partial remission


    Eight patients with ovarian cancer received treatment, of which five patients were confirmed to be EphA2 positive by immunohistochemical tests


    The company's BT8009 is a bicyclic peptide-conjugated toxin targeting Nectin-4


    ▲Tumor changes in patients treated with BT8009 (picture source: Bicycle Therapeutics official website)

    ▲Immuno-oncology therapy based on bicyclic peptides (picture source: Bicycle Therapeutics official website)

    In addition to coupled toxins, the company's R&D pipeline also includes bispecific bicyclic peptide molecules that can simultaneously bind to tumor antigens and CD137, and they are expected to become a new generation of immuno-oncology therapies


    Reference materials:

    [1] Bicycle Therapeutics Announces Interim BT5528 Phase I Clinical Trial Results and Preliminary Results from Ongoing BT8009 Phase I Clinical Trial.


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