Conditions: Sarcoma
Allocation: NON_RANDOMIZED | Intervention model: PARALLEL
Enrollment: 317
Healthy volunteers: no

Brief summary:
The study was primarily designed to determine objective response, progression-free survival (PFS), and the safety and tolerability of R1507 in participants with recurrent or refractory Ewing's sarcoma, osteosarcoma, synovial sarcoma, rhabdomyosarcoma and other sarcomas including alveolar soft part sarcoma, desmoplastic small round cell tumor, extraskeletal myxoid chondrosarcoma, clear cell sarcoma, and myxoid liposarcoma.

Detailed description:

Arms:
arm 1: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 1 includes individuals with Ewing's sarcoma who have relapsed within 24 weeks after diagnosis and have received two or more prior chemotherapy regimens. arm 2: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 2 includes individuals with Ewing's sarcoma who have relapsed more than 24 weeks after diagnosis and have only received one prior chemotherapy regimen. arm 3: Participants 2 to 21 years of age with recurrent or refractory sarcoma receive R1507 as 27 mg/kg via IV infusion every 3 weeks until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 3 includes individuals with Ewing's sarcoma who were enrolled and treated following safety evaluation in other cohorts. arm 4: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 4 includes individuals with osteosarcoma. arm 5: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 5 includes individuals with synovial sarcoma. arm 6: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 6 includes individuals with rhabdomyosarcoma. arm 7: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 7a includes individuals with alveolar soft part sarcoma. arm 8: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 7b includes individuals with desmoplastic small round cell tumors. arm 9: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 7c includes individuals with extraskeletal myxoid chondrosarcoma. arm 10: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 7d includes individuals with clear cell sarcoma. arm 11: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 7e includes individuals with myxoid liposarcoma. arm 12: Participants 2 years of age and older with recurrent or refractory sarcoma receive R1507 as 9 mg/kg via IV infusion once weekly until disease progression, intercurrent illness, unacceptable toxicity, prolonged (2-week) time off treatment, withdrawal, loss to follow-up, investigator decision, or death. Cohort 8 includes individuals with subtypes of sarcoma not specified in the protocol.

Interventions: intervention 1: RG1507
Intervention descriptions: intervention 1: Participants will receive R1507 IV infusion as 9 mg/kg once weekly or 27 mg/kg every 3 weeks, depending upon the cohort in which the participants are enrolled.

Protocol document: