About this trial
This is a prospective, single-arm, multicenter Phase II study evaluating the efficacy and safety of QL1706 combined with chemotherapy in patients with advanced recurrent or metastatic endometrial cancer who progressed after prior anti-PD-1/L1 therapy.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥18 years and ≤70 years.
Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1.
Recurrent or metastatic endometrial carcinoma, confirmed by pathology or imaging.
At least one measurable tumor lesion according to RECIST v1.1 criteria.
Disqualifiers
1. Previous treatment with PD-1/CTLA-4 dual-target immunotherapy, immune checkpoint agonists (e.g., ICOS, CD40, CD137, GITR, OX40 antibodies, etc.), or immune cell therapy.
Trial design
Single group
Treatments tested in this trial
QL1706 combined with chemotherapy ± Bevacizumab
Drug* Drug: QL1706: 5 mg/kg IV every 3 weeks until progression, unacceptable toxicity, completion of 1 year of treatment, or meeting protocol-defined discontinuation criteria, whichever occurred first. * Drug: Chemotherapy: physician's choice chemotherapy for 3-6 cycles. * Drug: Bevacizumab (optional): 15 mg/kg IV every 3 weeks until progression, unacceptable toxicity, completion of 1 year of treatment, or meeting protocol-defined discontinuation criteria, whichever occurred first.
Treatment groups
Trial outcomes
Primary outcomes
Objective response rate (ORR) - Investigator assessment
the objective response rate (ORR) of treatment with QL1706 combined with chemotherapy ± Bevacizumab, as assessed by the Investigator per RECIST v.1.1.
Secondary outcomes
Progression-Free Survival (PFS) - investigator assessment
the Progression-Free Survival (PFS) of treatment with QL1706 combined with chemotherapy ± Bevacizumab, as assessed by the Investigator per RECIST v.1.1.
Overall survival (OS)
the overall survival (OS) of treatment with QL1706 combined with chemotherapy ± Bevacizumab, as assessed by the Investigator per RECIST v.1.1.
Duration of response (DOR) - Investigator assessment
the duration of response (DOR) of treatment with QL1706 combined with chemotherapy ± Bevacizumab, as assessed by the Investigator per RECIST v.1.1.
Number of participants with adverse events (AEs), Serious adverse events (SAEs) and treatment-emergent adverse events (TEAEs)
Sponsors and contacts
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