Study of Safety and Tolerability of BCA101 Monotherapy and in Combination Therapy in Patients with EGFR-driven Advanced Solid Tumors

Eligibility Criteria

• * Patient must have measurable disease amendable to biopsy and be willing to undergo both a pre-treatment and on-treatment biopsy, as well as provide archival tumor if available from the primary tumor (a paraffin embedded tumor tissue block sufficient to obtain at least 10 sections of 4 to 5 micrometer thickness).
• * Patient must have a performance status of ≤1 on the Eastern Cooperative Oncology Group Performance Scale.
• * Patients must have evaluable or measurable disease (computed tomography \[CT\]/magnetic resonance imaging \[MRI\] scans performed within 21 days before the screening visit are acceptable) demonstrating measurable disease, i.e., at least 1 unidimensional measurable lesion as defined by Response Evaluation Criteria in Solid Tumors, Version 1.1 (RECIST 1.1) and Immune Response Evaluation Criteria in Solid Tumors (iRECIST).
• * Tumor eligibility:
• * Expansion Cohort 3: Squamous Carcinoma of the Anal Canal (SCAC), locally advanced/unresectable or metastatic.
• * Expansion Cohort 5: Squamous Non-Small Cell Lung Cancer (SqNSCLC) i. Patients must have a histologically or cytologically confirmed diagnosis of stage IV (AJCC 8th edition) squamous NSCLC. Patients with mixed histology (e.g., adenosquamous) are not allowed.
• * For Part A: Exposure to anti-EGFR antibodies within 4 weeks of the first dose of study drug.
• * Prior treatment with any anti-TGFβ therapy.
• * Prior history of Grade ≥ 2 intolerance or hypersensitivity reaction to cetuximab or other anti-EGFR therapy or other murine proteins or prior discontinuation of therapy in the setting of toxicity related to treatment.
• * Pregnant or breastfeeding women.
• * Any condition requiring systemic treatment with either corticosteroids (\>10 mg daily of prednisone or equivalent) or other immunosuppressive medication within 14 days prior to the first dose of study drug, with the exception of topical, intranasal, intrabronchial, or ocular steroids.
• * Known history of a hematologic malignancy (or solid tumor other than the ones indicated for this study), unless the patient has undergone potentially curative therapy with no evidence of that disease for 2 years. Does not include tumors with a negligible risk of metastasis or death (e.g. adequately treated basal or squamous cell carcinoma, stage 1 prostate cancer, or carcinoma in situ of the cervix or carcinoma in situ of the breast). Subjects enrolling in the CSCC cohort may have chronic lymphocytic leukemia as long as the patient is not on active treatment.
• * Known cases of human immunodeficiency virus (HIV) are excluded if patients have a CD4+ T-cell (CD4+) count \<250 cells/uL. To ensure that effective antiretroviral therapy (ART) is tolerated and that toxicities are not confused with investigational drug toxicities, trial participants should be on established ART for at least four weeks and have an HIV viral load less than 400 copies/mL prior to enrollment.
• * Patients with chronic HBV infection with active disease who meet the criteria for anti-HBV therapy and are not on a suppressive antiviral therapy prior to initiation of study treatment
• * Patients with a known history of hepatitis C who have not completed curative antiviral treatment or have a HCV viral load above the limit of quantification