Clinical Trial Details
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Phase IInterventional
A Phase 1 Dose Escalation and Expansion Study of XB628 as a Single Agent and in Combination With Zanzalintinib in Participants With Advanced or Metastatic Solid Tumors
Protocol: 2026P001546NCT: NCT06952010
Overview
This study consists of a Dose-Escalation stage and a Dose Expansion stage. The primary purpose of the dose escalation stage is to determine the maximum tolerated dose (MTD) and/or recommended dosage(s) for expansion (RDE[s]); and the dose expansion stage is to evaluate the preliminary antitumor activity of XB628 as a single agent and in combination with zanzalintinib.
Eligibility
| Ages | 18 Years and older |
| Sex | All |
| Healthy Volunteers | No |
| Age Groups | Adult, Older Adult |
Key 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.
Key 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 or clinically relevant ongoing complications from prior radiation therapy.
- Received prior therapy targeting NK cells (eg, monalizumab).
- A woman of childbearing potential has a positive serum pregnancy test within 7 days prior to study treatment.
Note: Other protocol defined Inclusion/Exclusion criteria may apply.
