Advanced Solid Tumor
Conditions
Brief summary
This is a multicenter, open-label, single-arm phase I study in patients with advanced solid tumors which consists of a dose escalation part (Part A) and a dose extension part (Part B). Part A aims to evaluate the safety and tolerability of BA1202, and determine the MTD. Part B will also evaluate the preliminary efficacy of BA1202.
Interventions
BA1202 will be administered intravenously (IV) once every 3 weeks (Q3W) until confirmed progression, death, unaccepted toxicity, initiation of other antitumor therapies, or any other conditions requiring treatment discontinuation, and the duration of administration was no more than 2 years. Part A: Patients will receive one of the following dosages of BA1202: 0.016mg, 0.08mg, 0.4mg, 1.6mg, 6.4mg, 19mg, 38mg, 56mg. Part B: Based on the data of part A, one or two dose levels will be discussed for further evaluation in part B.
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients who voluntarily sign an IRB-approved informed consent form, and are willing to abide by the restrictions of the study. * Part A: Patients with histologically and/or cytologically confirmed advanced and/or metastatic solid tumors who have progressed on Standard-Of-Care (SOC), are intolerant to SOC, or have no SOC. * Part B: Patients with histologically and/or cytologically confirmed colorectal cancer, non-small cell lung cancer, pancreatic cancer, gastric cancer, who have progressed on Standard-Of-Care (SOC), are intolerant to SOC, or have no SOC.(Specific cohort will be determined after data of dose escalation phase is obtained) * Part B: High expression of CEACAM5 (defined as ≥ 20% of tumor cells with IHC 2+ and/or 3+). * Life expectancy of at least 3 months. * At least one evaluable lesion in Part A and at least one measurable lesion in Part B according to RECIST v1.1. * ECOG score of \< 2. * Absolute neutrophil count ≥ 1.5 x 10\^9/L, platelet count ≥ 100 x 10\^9/L, hemoglobin ≥ 90 g/L. * Total bilirubin ≤ 1.5×ULN, ALT and AST ≤ 2.5×ULN (or ≤ 5.0×ULN for patients with liver metastases). * Serum creatinine ≤ 1.5×ULN, or creatinine clearance ≥50 mL/min. * International normalized ratio (INR) prothrombin time (PT) ≤1.5×ULN, activated partial thromboplastin time (APTT) ≤1.5×ULN. * Blood pregnancy test results were negative for female patients with fertility potential. Patients with fertility potential must agree to use a reliable method of contraception with their sexual partners during the study period and at least 6 months after the last administration.
Exclusion criteria
* Other malignancies within 5 years prior to screening (other than cured stage Ib or lower cervical cancer, non-invasive basal cell or squamous cell skin cancer). * Has a persistent or active infection that requires intravenous treatment. * History of severe cardiovascular and cerebrovascular disease. * Patients with autoimmune diseases requiring drug control or at risk of recurrence of autoimmune diseases. * Received any radiotherapy (other than palliative radiotherapy for bone metastases), chemotherapy, targeted therapy, immunotherapy, cell therapy, or other investigational anticancer agents within 4 weeks prior to first dose of BA1202, unless chemotherapy or targeted therapy is less than 4 weeks after first dose but has eluted ≥5 half-lives. * Have received any previous CEA targeting therapy, including but not limited to monoclonal antibodies, bisspecific antibodies, antibody-coupled drugs (ADCs), chimeric antigen receptor T cells (CAR-T), etc. * A history of allergy to BA1202 or any component of Obinutuzumab, or to other monoclonal antibodies. * Women are planning to become pregnant or are pregnant or breastfeeding. * Other conditions considered unsuitable for enrollment by the investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Incidence and severity of adverse events (AEs) | From the initiation of study treatment to the completion of safety follow-up after the end of study treatment, up to 2 years. |
Secondary
| Measure | Time frame |
|---|---|
| Area under the curve (AUC) of BA1202 | Cycle 1: Day 1, 2, 3, 5, 8, 15; Cycle 2 Day 1; Cycle 3 Day 1; Cycle 4: Day 1, 2, 3, 5, 8, 15; Cycle 5 Day 1; Cycle 6 Day 1. (Each cycle is 21 days.) |
| Minimum Concentration (Cmin) of BA1202 | Cycle 1: Day 1, 2, 3, 5, 8, 15; Cycle 2 Day 1; Cycle 3 Day 1; Cycle 4: Day 1, 2, 3, 5, 8, 15; Cycle 5 Day 1; Cycle 6 Day 1. (Each cycle is 21 days.) |
| Time of maximum concentration (Tmax) of BA1202 | Cycle 1: Day 1, 2, 3, 5, 8, 15; Cycle 2 Day 1; Cycle 3 Day 1; Cycle 4: Day 1, 2, 3, 5, 8, 15; Cycle 5 Day 1; Cycle 6 Day 1. (Each cycle is 21 days.) |
| Objective Response Rate (ORR) | up to 2 years |
| Maximum Concentration (Cmax) of BA1202 | Cycle 1: Day 1, 2, 3, 5, 8, 15; Cycle 2 Day 1; Cycle 3 Day 1; Cycle 4: Day 1, 2, 3, 5, 8, 15; Cycle 5 Day 1; Cycle 6 Day 1. (Each cycle is 21 days.) |
| Duration of Response (DOR) | up to 2 years |
| Overall Survival (OS) | up to 2 years |
| Progression-Free Survival (PFS) | up to 2 years |
| Proportion of subjects with positive anti-drug antibody (ADA) and neutralizing antibody (Nab) | Cycle 1: Day 1, 15; Cycle 2 Day 1; Cycle 3 Day 1; Cycle 4 Day 1; Cycle 5 Day 1; Cycle 6 Day 1; EOT (end of treatment) visit. (Each cycle is 21 days.) |
| Disease Control Rate (DCR) | up to 2 years |
Countries
China