About this trial
Efficacy and safety of chidamide in combination with the R-mini CHOP regimen, followed by chidamide plus CD20 monoclonal antibody as maintenance therapy, in elderly patients with newly diagnosed MYC/BCL2 double-expressor DLBCL.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥ 70 years;
No prior treatment for DLBCL;
Histopathologically confirmed diagnosis (all of the following conditions must be met simultaneously): ① Diffuse large B-cell lymphoma, not otherwise specified (DLBCL, NOS), and CD20-positive; ② "MYC/BCL2 double-expressor": Immunohistochemistry (IHC) per WHO criteria: MYC ≥ 40%, and BCL2 ≥ 50%; ③ Non-"double-hit" or "triple-hit" lymphoma;
At least one 18F-fluorodeoxyglucose (18FDG)-avid lesion on positron emission tomography-computed tomography (PET-CT) according to the 2014 Lugano classification for Hodgkin and non-Hodgkin lymphoma;
Disqualifiers
Central nervous system (CNS) involvement;
Transformed lymphoma, i.e., lymphoma transformed from other lymphoma types such as follicular lymphoma, marginal zone B-cell lymphoma, or chronic lymphocytic leukemia/small lymphocytic lymphoma; specific subtypes of DLBCL (e.g., primary CNS DLBCL, etc.);
Uncontrolled cardiovascular or cerebrovascular diseases, coagulation disorders, autoimmune diseases, or severe infectious diseases;
History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies, or known sensitivity or allergic reactions to murine products; contraindications to any component of the CHOP regimen or chidamide;
Trial design
Single group
Treatments tested in this trial
Chidamide
DrugChidamide, oral, 20 mg (4 tablets) each time, twice a week, D1-14.
Rituximab
DrugRituximab, 375 mg/m² IV, Cycle 1-4, Day 1.
Cyclophosphamide
DrugCyclophosphamide, 400 mg/m² IV, Cycle 1-4, Day 2.
Doxorubicin
DrugDoxorubicin, 25 mg/m² IV, Cycle 1-4, Day 2.
Vincristine
DrugVincristine, 1 mg/m² IV, Cycle 1-4, Day 2.
Prednisone
DrugPrednisone, 40 mg/m² orally, Cycle 1-4, Days 1-5.
Chidamide + Rituximab maintenance
DrugChidamide, oral, 20 mg (4 tablets) each time, twice a week, D1-14. Rituximab, 375 mg/m² IV, once every 12 weeks. 21 days/cycle.
Treatment groups
Trial outcomes
Primary outcomes
Progression-free survival (PFS)
The time from study enrollment to the first documented disease progression or death from any cause, whichever occurs first.
Secondary outcomes
Overall Response Rate (ORR)
To assess the Overall Response Rate (ORR) referred to Lugano 2014.
Duration of Response (DOR)
The duration from the first documentation of response (achievement of complete response or partial response) to the first unequivocal evidence of relapse or progression.
Complete Response Rate (CRR)
To assess the Complete Response Rate (CRR) referred to Lugano 2014.
Percentage of patients converting from PR/SD to CR/PR
Percentage of patients converting from PR/SD to CR/PR
Other outcomes
Biomarker exploration
ctDNA testing will be performed at baseline, after 6 cycles of treatment, every 6 months during the maintenance period, and at disease progression or study withdrawal, to evaluate the correlation between ctDNA and treatment efficacy.
Sponsors and contacts
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Ou Bai, MD/PHD
Lead sponsor
The First Hospital of Jilin University
Sponsor institution