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This is a randomized, controlled, multicenter Phase II clinical study to evaluate the efficacy and safety of toripalimab injection combined with axitinib in the first-line treatment of patients with advanced mucosal melanoma. The target population is the patients with previously untreated, histopathologically confirmed, unresectable or metastatic mucosal melanoma. At the randomization, patients are randomized 1:1:1 into three groups with approximately 33 subjects in each group to receive toripalimab injection plus axitinib, toripalimab injection monotherapy (subjects who meet the criteria after disease progression may cross over to receive toripalimab plus axitinib), or axitinib monotherapy (subjects who meet the criteria after disease progression may cross over to receive toripalimab plus axitinib); when the patient has disease progression or intolerable toxicity, the treatment is terminated, and the survival follow-up will be initiated.
Enrollment
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Inclusion and exclusion criteria
Inclusion Criteria Patients are eligible for the trial if they meet the following criteria:
Men and women, aged 18 to 80 years.
Patients with pathohistologically confirmed, unresectable or metastatic mucosal melanoma.
No prior treatment with any systemic antineoplastic agents (prior adjuvant or neoadjuvant therapy is allowed, but should be completed at least 3 weeks prior to randomization and all related adverse events have returned to normal or CTC-AE Grade 1).
Have a score of 0 or 1 on the ECOG scale.
Tumor tissue samples must be available for PD-L1 expression testing.
At least one measurable lesion according to RECIST 1.1, and the lesion has not been irradiated.
Organ function must meet the following requirements (within 7 days prior to randomization):
Peripheral blood: absolute neutrophil count (ANC) ≥1.5 × 109/L, platelets (PLT) ≥100 × 109/L, hemoglobin (HB) ≥9 g/dL (no blood transfusion or blood components within 14 days before testing); Liver: Serum bilirubin (TBIL) ≤1.5 x upper limit of normal (ULN),, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤3 x ULN (≤5 x ULN in case of liver metastases); Serum creatinine ≤1.5 x ULN; International normalized ratio (INR) and activated partial thromboplastin time (APTT) ≤1.5 x ULN (only for patients not receiving anticoagulant therapy; patients receiving anticoagulant therapy should keep the anticoagulant within the therapeutic requirements); Normal cardiac function, i.e., normal or abnormal electrocardiogram without clinical significance, and left ventricular ejection fraction (LVEF) greater than 50% on cardiac ultrasound.
Women of childbearing age must have a negative pregnancy test within 7 days prior to treatment; men of reproductive potential or women of childbearing potential must use highly effective contraceptive methods (e.g., oral contraceptives, intrauterine contraceptive devices, abstinence or barrier contraception in combination with spermicides) throughout the trial and continue contraception for 3 months after the end of treatment.
Subjects are willing to participate in this study and sign informed consent form, have good compliance and cooperate with the follow-up.
Exclusion Criteria Patients with any of the following conditions will be excluded from the trial:
Patients previously treated with anti-PD-1, anti-PD-L1, anti-PD-L2 therapy and/or VEGFR TKIs.
Patients who have participated in or are participating in clinical trial of other drug/therapy within 4 weeks prior to this study treatment (before randomization).
Major surgery, live vaccination, immunotherapy within 4 weeks prior to study start, and radiotherapy within 2 weeks prior to study start.
History of malignancy other than mucosal melanoma within the past 3 years, with the exception of cured basal cell carcinoma of the skin, squamous cell carcinoma of the skin, early stage prostate cancer, and carcinoma in situ of the cervix.
Patients who received hematopoietic stimulating factors, such as granulocyte colony-stimulating factor (G-CSF) and erythropoietin, within 1 week prior to study start.
HIV test positive.
Patients with active hepatitis B or C:
Known to be allergic to recombinant humanized PD-1 monoclonal antibody drug and its components; known to be allergic to axitinib and any of its excipients.
Hypertension that cannot be controlled by medication.
Massive pleural effusion or ascites with clinical symptoms requiring symptomatic management.
Subjects with active central nervous system (CNS) metastases are excluded. Subjects with metastatic brain lesions are eligible if they have received treatment and have no evidence of disease progression on magnetic resonance imaging (MRI) at least 8 weeks after completion of treatment and within 28 days before the first dose. Immunosuppressive doses of systemic corticosteroids (>10 mg/day prednisone equivalent) must not be required at least 2 weeks prior to study drug administration.
History of active pulmonary tuberculosis.
Have any uncontrollable clinical problems, including but not limited to:
Any condition that affects the subject's swallowing of the drug, and any condition that affects the absorption or pharmacokinetics of the investigational product.
Have received stem cell transplant or organ transplant.
Women of childbearing age, pregnant or lactating women with positive serum or urine pregnancy test 7 days before starting treatment.
Have a history of psychotropic drug abuse and unable to withdraw or have a history of mental disorders.
Other severe, acute, or chronic medical conditions or laboratory abnormalities that, in the judgment of the investigator, may increase the risk associated with study participation or may interfere with the interpretation of study results.
Patients who are judged by the investigator to have poor compliance, or other conditions that make them unsuitable for this trial.
Primary purpose
Allocation
Interventional model
Masking
99 participants in 3 patient groups
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Central trial contact
Xinan Sheng, MD; Jun Guo, MD,PhD
Data sourced from clinicaltrials.gov
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