NCT03676985

A Clinical Study of PD-L1 Antibody ZKAB001(Drug Code) in Limited Stage of High-grade Osteosarcoma

An Open-label, Dose-escalation, Bi-weekly Phase I+II Clinical Trial in Treating Patients With Limited Stage of High-grade Osteosarcoma of Maintenance Therapy After Adjuvant Chemotherapy

• Status: Unknown
• Phase: Phase 1 / Phase 2
• Study type: Interventional
• Enrollment: 15 (estimated)
• Sponsor: Lee's Pharmaceutical Limited · Industry
• Sex: All
• Age: 18 Years – 55 Years
• Healthy volunteers: Not accepted

Summary

This is a Phase 1+2, open-label, dose-escalation, and multidose study, aiming to investigate the safety, tolerability and pharmacokinetics of ZKAB001 (a fully human monoclonal antibody targeting the Programmed Death - Ligand 1 (PD-L1) membrane receptor on T lymphocytes and other cells of the immune system) administered every 14 days in subjects with limited stage of high-grade osteosarcoma of maintenance therapy after adjuvant chemotherapy.

Detailed description

The study will consist of 4 periods: Screening (up to 28 days), Lead-in period (Day -28), Treatment (up to 24 cycles or 1 year, whichever occurs first), and Follow-up (up to 2 years). There will be a lead-in period on Day -28 for each dose escalation cohort in which the single-dose pharmacokinetics(PK) of ZKAB001 will be characterized prior to initiation of continuous dosing in the first cycle of treatment. The lead-in period duration, PK time-points, doses and/or regimens used in subsequent cohorts may be modified based on the exposure (AUC) observed during the lead-in period (although the number of PK samples will not be increased). Treatment of continuous dosing is up to 24 cycles or 1 year, until as per investigator's opinion, subjects experience disease progression (evaluated by RECIST 1.1), no clinical benefit, or intolerable toxicity. If investigators suspect subjects experience pseudoprogression or has evidence to prove "mixed response", subjects can continue to accept treatment as investigator decided.

Conditions

• Osteosarcoma

Interventions

Type	Name	Description
DRUG	ZKAB001 5mg/kg	5mg/kg/times bi-week IV administration of ZKAB001
DRUG	ZKAB001 10mg/kg	10mg/kg/times bi-week IV administration of ZKAB001
DRUG	ZKAB001 15mg/kg	15mg/kg/times bi-week IV administration of ZKAB001

Timeline

• Start date: 2018-10-10
• Primary completion: 2020-02-14
• Completion: 2023-06-23
• First posted: 2018-09-19
• Last updated: 2018-09-26

Locations

1 site across 1 country: China