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PBTC-051: Phase I Study to Evaluate the Safety and Tolerability of the CD40 Agonistic Monoclonal Antibody APX005M in Pediatric Subjects with Recurrent/Refractory Brain Tumors and Newly Diagnosed Brain Stem Glioma

Primary Objective

1.1 Primary Objectives 1.1.1 To evaluate the safety of APX005M administered intravenously every 3 weeks to children with central nervous system tumors. 1.1.2 To determine the maximum tolerated dose and/or the recommended phase II dose of APX005M. 1.1.3 To determine the pharmacokinetics of APX005M. 1.2 Secondary Objective 1.2.1 To make a preliminary assessment of efficacy via overall response rate, duration of response, progression-free survival and overall survival for DIPG patients. 1.3 Exploratory Objectives 1.3.1 To assess the incidence of anti-drug antibodies. 1.3.2 To determine the immune pharmacodynamics of APX005M. 1.3.3 To identify tumor and blood efficacy and/or resistance biomarkers.

Study category: Cancer

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Child to Adult

Type of Study



Childrens Hospital Colorado

Principal Investigator
Kathleen Dorris,  MD

Kathleen Dorris, MD

Study ID

Protocol Number: 17-2394

More information available at NCT03389802


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