This phase II clinical study aims to evaluate the efficacy and safety of QL1706 in combination with lenvatinib in patients with previously treated advanced or metastatic penile squamous cell carcinoma. The primary objective of the study is to determine the median progression-free survival (PFS) of this regimen according to RECIST 1.1 criteria. Secondary objectives include evaluating objective response rate, disease control rate, overall survival, duration of response, safety, and the rate of conversion surgery. All enrolled participants will receive QL1706 plus lenvatinib as induction therapy for up to four treatment cycles (21 days per cycle). After completion of four cycles, tumor response will be assessed by imaging and multidisciplinary team (MDT) evaluation. Patients whose tumors become resectable and who are considered likely to benefit from surgery may undergo conversion surgery. Patients who are not eligible for surgery will continue study treatment. Following induction therapy or surgery, participants may continue QL1706 plus lenvatinib as continuation therapy. QL1706 will be administered for up to one year, and lenvatinib will be continued until disease progression according to RECIST 1.1, unacceptable toxicity, withdrawal of consent, or investigator decision. Tumor assessments will be performed using imaging studies such as CT or MRI at scheduled intervals. Safety will be monitored through clinical evaluations, laboratory testing, and adverse event reporting throughout the study.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
47
Lenvatinib: 8 mg once daily (for body weight \<60 kg) or 12 mg once daily (for body weight ≥60 kg). QL1706: 5 mg/kg, administered by intravenous infusion (iv) on Day 1 of each cycle. Treatment Cycle: Each cycle is 21 days. After completion of four cycles, tumor response will be assessed by imaging and multidisciplinary team (MDT) evaluation. Patients whose tumors become resectable and who are considered likely to benefit from surgery may undergo conversion surgery. Patients who are not eligible for surgery will continue study treatment. Following induction therapy or surgery, participants may continue QL1706 plus lenvatinib as continuation therapy. QL1706 will be administered for up to one year, and lenvatinib will be continued until disease progression according to RECIST 1.1, unacceptable toxicity, withdrawal of consent, or investigator decision.
Sun Yat-Sen University Cancer Center
Guangzhou, Guangdong, China
RECRUITINGmedian PFS (median Progression-Free Survival)
defined as the median time from study enrollment to the first occurrence of any of the following events: Radiographic disease progression according to RECIST version 1.1, as determined by the investigator; For patients who undergo conversion surgery, postoperative local recurrence or distant metastasis; Death from any cause, whichever occurs first. Conversion surgery itself will not be considered a PFS event. For participants who have not experienced a PFS event at the time of analysis, PFS will be censored at the date of the last tumor assessment or last follow-up.
Time frame: From treatment initiation date to first documented disease progression or death from any cause
ORR (Objective Response Rate)
Time frame: Baseline to first documented disease progression, death or last valid tumor assessment
Disease Control Rate
The proportion of participants who achieve complete response (CR), partial response (PR), or stable disease (SD) per RECIST 1.1 criteria.
Time frame: From baseline until the earliest documented disease progression, death from any cause, or the last valid tumor assessment without prior progression.
Duration of Response
The time interval from the first documentation of confirmed CR or PR to the earliest documented disease progression or death from any cause.
Time frame: Time Frame: From date of first confirmed CR/PR until first documented disease progression or death
median overall survival
Median Overall Survival (OS) is defined as the median time interval from the date of treatment initiation to the date of death from any cause. For participants who were alive at the last follow-up or lost to follow-up, OS was censored at the date of the last known alive status.
Time frame: From treatment initiation date to death from any cause
Adverse Event Rate
The proportion of participants who experience at least one adverse event during the study treatment period and follow-up period
Time frame: From treatment initiation through 30 days after the last study drug administration
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