A Multicenter, Open-label, Uncontrolled Phase I/II Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of ONO-4538HSC in Pediatric Patients With Malignant Solid Tumors and in Patients With Epithelioid Sarcoma, and to Evaluate the Tolerability in Pediatric Patients.
This is a multicenter, open-label, uncontrolled Phase I/II study to evaluate the efficacy, safety, and pharmacokinetics of ONO-4538HSC in pediatric patients with malignant solid tumors and in patients with epithelioid sarcoma, and to evaluate the tolerability in pediatric patients. The objective of this study is to explore the tolerability, safety, efficacy, and pharmacokinetics of ONO-4538HSC in patients with pediatric malignant solid tumors. The other objective is to exploratively investigate the efficacy and safety of ONO-4538HSC in patients with epithelioid sarcoma.
‣ \[Cohort of pediatric malignant solid tumor Tolerability evaluation part\]
• Patients aged ≥ 12 to \< 18 years at the time of signing the informed consent form (ICF)
• Patients with radically/curatively unresectable advanced or metastatic solid tumor who are refractory to or intolerant to standard treatment or for which no standard treatment is available.
• Patients with ECOG PS of 0 to 1
• \[Cohort of pediatric malignant solid tumor Expansion part\]
• Patients aged ≥ 12 to \< 18 years at the time of signing the informed consent form (ICF)
• Patients with unresectable tumors for whom nivolumab intravenous monotherapy is indicated in adults according to the package insert
• Patients who have at least 1 measurable lesion per RECIST guideline
• Patients with ECOG PS of 0 to 2
• \[Cohort of Epithelioid Sarcoma\]
• Patients aged ≥ 12 years of age at the time of signing the informed consent form (ICF). However, patients aged ≥ 12 to \< 18 years may be enrolled after tolerability is confirmed in the tolerability evaluation part in the cohort of pediatric malignant solid tumor.
• Patients who are refractory to or ineligible to at least 1 regimen of chemotherapy including doxorubicin for unresectable advanced or recurrent epithelioid sarcoma
⁃ Patients who have at least 1 measurable lesion per RECIST guideline
⁃ Patients with ECOG PS of 0 to 2
⁃ \[Common\]
⁃ Life expectancy ≥ 3 months at the time of enrollment