Study to Compare the Safety and Efficacy of CMB305 With Atezolizumab to Atezolizumab Alone in Participants With Sarcoma (IMDZ-C232/V943A-002)
Sarcoma, Myxoid/Round Cell Liposarcoma, Synovial Sarcoma
About this trial
This is an interventional treatment trial for Sarcoma focused on measuring immunotherapy, CMB305, LV305, GLA-SE, atezolizumab, NY-ESO-1
Eligibility Criteria
Inclusion Criteria:
- Locally advanced, relapsed, or metastatic sarcoma with measurable tumor burden following therapy, as defined by Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1); the total of all lesions must be ≤12 cm (for synovial sarcoma) or ≤15 cm (for myxoid/round cell liposarcoma [MRCL])
- Tumor histology consistent with synovial sarcoma or MRCL
- Tumor specimen positive for NY-ESO-1 expression by immunohistochemistry (IHC)
- Inadequate response, relapse, and/or unacceptable toxicity with ≥1 prior systemic, surgical, or radiation cancer therapies
- Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
Exclusion Criteria:
- Investigational therapy within 4 weeks prior to CMB305 dosing
- Prior administration of other NY-ESO-1-targeting immunotherapeutics
- Prior treatment with CD137 agonists or immune checkpoint blockade therapies, including anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), anti-programmed cell death receptor 1 (PD-1), and anti-programmed cell death ligand (PD-L1) therapeutic antibodies, or any other antibody or drug targeting T-cell costimulation
- Treatment with systemic immunostimulatory agents (including but not limited to interleukin-2) within 4 weeks or five half-lives of the drug, whichever is shorter, prior to first dose
- Significant immunosuppression
- Other cancer therapies, including chemotherapy, radiation, biologics or kinase inhibitors within 3 weeks prior to the first scheduled dosing
- History of autoimmune disease, including but not limited to myasthenia gravis, myositis, autoimmune hepatitis, systemic lupus erythematosus, rheumatoid arthritis, inflammatory bowel disease, vascular thrombosis associated with antiphospholipid syndrome, Wegener's granulomatosis, Sjögren's syndrome, Guillain-Barré syndrome, multiple sclerosis, vasculitis, or glomerulonephritis
- History of idiopathic pulmonary fibrosis (including pneumonitis), drug-induced pneumonitis, organizing pneumonia (i.e., bronchiolitis obliterans, cryptogenic organizing pneumonia), risk of pulmonary toxicity, or evidence of active pneumonitis on screening chest computed tomography (CT) scan. History of radiation pneumonitis in the radiation field (fibrosis) is permitted
- History of other cancer within 3 years
- Evidence of active tuberculosis or recent (<1 week prior to first scheduled dosing) clinically significant infection requiring systemic therapy
- Evidence of active hepatitis B (HepB), hepatitis C (HepC), or Human Immunodeficiency Virus (HIV) infection
- Known active or untreated central nervous system (CNS) metastases
- Pregnant, planning to become pregnant within 6 months of treatment, or nursing
- Known allergy(ies) to any component of CMB305, atezolizumab, or severe allergic reactions to monoclonal antibodies, fusion proteins, or Chinese hamster ovary (CHO) cell products
Sites / Locations
- Stanford University Medical Center
- Sarcoma Oncology Research Center
- University of Colorado Cancer Center
- MedStar Washington Hospital Center
- Mayo Clinic of Jacksonville
- Georgia Cancer Specialists
- Northwestern University Feinburg School of Medicine
- University of Iowa Hospital and Clinics
- Massachusetts General Hospital
- Mayo Clinic Rochester
- Washington University in St. Louis
- Monter Cancer Research
- Levine Cancer Institute
- Duke Cancer Institute
- Fox Chase cancer Center
- Vanderbilt University
- University of Vermont Cancer Center
- Scca/Fhcrc
Arms of the Study
Arm 1
Arm 2
Experimental
Active Comparator
CMB305 (sequentially administered LV305 and G305)+Atezolizumab
Atezolizumab
Participants received CMB305 treatment in combination with 1200 mg/day atezolizumab administered by intravenous (IV) infusion every 3 weeks (Q3W) for up to approximately 2 years. CMB305 treatment consisted of 2 doses of LV305 administered intradermally (ID) on Days 0 and 14 followed every 2 weeks with alternating doses of G305 administered intramuscularly (IM) and LV305. LV305 was administered at a dose of 1×10^10 vector genomes and G305 at a dose of 5 mcg glucopyranosyl lipid A stable emulsion mixed with 250 mcg of NY ESO-1 protein.
Participants received 1200 mg/day atezolizumab by IV infusion Q3W for up to approximately 2 years.