Diffuse Large B Cell Lymphoma (DLBCL)
Conditions
Brief summary
This is a prospective, multicenter, open-label Phase Ib/II clinical study designed to evaluate the safety, tolerability, preliminary efficacy, and pharmacokinetics of lisatoclax in combination with R-CHOP or Pola-R-CHP in patients with previously untreated diffuse large B-cell lymphoma (DLBCL).
Interventions
Rituximab, Cyclophosphamide, Doxorubicin, Vincristine, Prednisone
Polatuzumab vedotin, Rituximab, Cyclophosphamide, Doxorubicin, Prednisone
Lisaftoclax (400 mg or 600 mg) is added from the second cycle of chemotherapy.
Sponsors
Study design
Eligibility
Inclusion criteria
* 1\. Voluntarily participate in the clinical study; fully understand and be informed about the study and sign the Informed Consent Form (ICF); willing to comply with and capable of completing all trial procedures. * 2\. Diagnosed with DLBCL according to 2022 revised WHO lymphoma classification standards based on pathological diagnosis by the research center. For the dose-expansion phase, BCL-2 positivity (≥50% by IHC) is required. * 3\. Age 18-70 years. * 4\. No prior systemic anti-lymphoma therapy. * 5\. Adequate organ and bone marrow function. * 6\. At least one measurable or evaluable disease site according to the Lugano 2014 lymphoma efficacy evaluation criteria. * 7\. Eastern Cooperative Oncology Group (ECOG) performance status of 0-2.
Exclusion criteria
* 1\. Lymphoma involvement in the central nervous system or meninges. * 2\. Active infections. * 3\. Uncontrolled clinical cardiac symptoms or diseases. * 4\. Currently using (or unable to stop at least one week prior to the first dose) a known CYP3A strong inducer or strong inhibitor. * 5\. Pregnant and lactating women, and subjects of childbearing age who do not want to use contraception. * 6\. History of Human Immunodeficiency Virus (HIV) infection and/or Acquired Immunodeficiency Syndrome (AIDS). * 7\. Patients with mental disorders or those unable to provide informed consent
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Dose-limiting toxicity (DLT) for Phase 1b | The first cycle (each cycle is 21 days) after lisaftoclax administration. | To identify the DLT |
| Complete response rate (CRR) for Phase 2 | Up to 8 cycles (each cycle is 21 days) | The proportion of patients who achieve complete response (CR) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Overall response rate (ORR) | Up to 8 cycles (each cycle is 21 days) | The proportion of patients who achieve complete response (CR) or partial response (PR) |
| Duration of Response (DOR) | Up to 5 years | To investigate the preliminary anti-tumor efficacy |
| Progression-free survival (PFS) | Up to 5 years | To investigate the preliminary anti-tumor efficacy |
| Overall survival (OS) | Up to 5 years | To investigate the preliminary anti-tumor efficacy |
Countries
China