CAB-AXL-ADC Safety and Efficacy Study in Adult and Adolescent Patients With Sarcoma

Purpose

The objective of this study is to assess the safety and efficacy of mecbotamab vedotin (BA3011) in solid tumors.

Conditions

  • Undifferentiated Pleomorphic Sarcoma
  • Myxofibrosarcoma

Eligibility

Eligible Ages
Over 12 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Patients must have measurable disease. - Age ≥ 12 years (Phase 2) - Adequate renal function - Adequate liver function - Adequate hematological function - Have an Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. - Life expectancy of at least three months.

Exclusion Criteria

  • Patients must not have clinically significant cardiac disease. - Patients must not have known non-controlled CNS metastasis. - Patients must not have a history of ≥ Grade 3 allergic reactions to mAb therapy as well as known or suspected allergy or intolerance to any agent given during this study. - Patients must not have had major surgery within 4 weeks before first BA3011 administration. - Patients must not have had prior therapy with a conjugated or unconjugated auristatin derivative/vinca-binding site targeting payload. - Patients must not have known human immunodeficiency virus (HIV) infection, active hepatitis B and/or hepatitis C. - Patients must not be women who are pregnant or breast feeding.

Study Design

Phase
Phase 1/Phase 2
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
BA3011
Phase 1: All patients will receive BA3011, CAB-AXL-ADC. Phase 2: All patients will receive either BA3011 alone or in combination with PD-1 inhibitor.
  • Biological: CAB-AXL-ADC
    Conditionally active biologic anti-AXL antibody drug conjugate
Experimental
Combination Therapy
Phase 2: BA3011 in combination with PD-1 inhibitor.
  • Biological: CAB-AXL-ADC
    Conditionally active biologic anti-AXL antibody drug conjugate
  • Biological: PD-1 inhibitor
    PD-1 inhibitor

Recruiting Locations

Vanderbilt Ingram Cancer Center
Nashville, Tennessee 37232
Contact:
Kathy Taylor
615-875-0060
kathy.l.taylor@vumc.org

More Details

Status
Recruiting
Sponsor
BioAtla, Inc.

Study Contact

BioAtla Medical Affairs
858-558-0708
medicalaffairs@bioatla.com

Detailed Description

This is a multi-center, open-label, Phase 1/2 study designed to evaluate the safety, tolerability, PK, immunogenicity, and antitumor activity of mecbotamab vedotin (BA3011), a conditionally active biologic (CAB) AXL-targeted antibody drug conjugate (CAB-AXL-ADC) in patients with advanced solid tumors. Phase 1 of this study will consist of a dose escalation phase (enrollment complete as of Oct 2019) and a dose expansion phase (enrollment complete as of Jan 2024). Phase 2 will consist of two parts. Part 1 is designed to evaluate mecbotamab vedotin alone and with nivolumab in patients with various types of advanced sarcomas (enrollment complete as of Jan 2024). Part 2 will evaluate the safety and efficacy of mecbotamab vedotin in patients with undifferentiated pleomorphic sarcoma (UPS) and myxofibrosarcoma (MFS).