A Study of XB628 in Participants With Recurrent Advanced or Metastatic Solid Tumors
Trial Parameters
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Brief Summary
This is a phase 1, first-in-human, open-label, dose-escalation study of XB628, a first-in-class bispecific antibody natural killer (NK) cell engager that targets NK group 2 member A (NKG2A), an inhibitory receptor on NK cells, and programmed cell death-ligand 1 (PD-L1).
Eligibility Criteria
Inclusion Criteria: * Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1. * Minimum life expectancy of ≥ 12 weeks. * Have a recurrent advanced or metastatic solid tumor that is histologically or cytologically confirmed. * Adequate organ and marrow function. * Not amenable to curative treatment with surgery or radiation. * Received at least 1 line of prior systemic anticancer therapy in the recurrent or metastatic setting. * Acceptable alternative therapy was received, refused, intolerable, or no longer effective. * Capable of understanding and complying with the protocol requirements and provide signed informed consent according to the protocol and local requirements. Exclusion Criteria * Primary brain tumors or known active brain metastases. * Major surgery (eg, gastrointestinal surgery, removal or biopsy of brain metastasis) within 4 weeks before the first dose of study treatment. * Received radiation therapy within 1 week before the first dose of study treatment