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Application of Orelabrutinib With or Without CD20 Monoclonal Antibody in Previously Untreated Marginal Zone Lymphoma

NCT07355699 · Status: RECRUITING · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 88

Last updated 2026-01-21

No results posted yet for this study

Summary

This study focuses on treatment-naïve marginal zone lymphoma (MZL) patients and aims to investigate the efficacy and safety of orelabrutinib combined with or without CD20 monoclonal antibody.

This is a single-arm study without a control group. All subjects will receive orelabrutinib treatment but will be stratified based on disease stage and clinical characteristics into the following two groups:

1. Stage I MZL Patient Group (Monotherapy Group) Treatment regimen: Orelabrutinib monotherapy. Dosage and administration: Orelabrutinib 150mg, once daily (qd), taken continuously for 21 days per treatment cycle (d1-d21), for a total of 6 cycles (C1-C6).

Target population: Patients with Ann Arbor Stage I gastric MALT MZL, including H. pylori-negative patients or those with unsatisfactory response after anti-H. pylori therapy, as well as other Stage I MZL patients unsuitable for local radiotherapy.

Sample size: 50 cases.
2. Stage II-IV MZL Patient Group (Combination Therapy Group) Treatment regimen: Orelabrutinib combined with a CD20 monoclonal antibody. Dosage and administration: Orelabrutinib 150mg, once daily (qd), taken continuously for 21 days per treatment cycle (d1-d21), for a total of 6 cycles (C1-C6). CD20 monoclonal antibody (either Rituximab 375mg/m², intravenous infusion, Day 1 of each cycle, C1-C6; or Obinutuzumab 1000mg, intravenous infusion, on Days 1, 8, and 15 of Cycle 1 \[C1\], and on Day 1 of Cycles 2-6 \[C2-C6\]).

Target population: Patients with Ann Arbor Stage II-IV non-gastric MALT MZL, nodal MZL, splenic marginal zone lymphoma (SMZL), and other Stage II-IV MZL patients unsuitable for local radiotherapy.

Sample size: 38 cases.

Conditions

  • Marginal Zone Lymphoma(MZL)

Interventions

DRUG

Orelabrutinib

1. Stage I MZL Patients: Treatment with Orelabrutinib monotherapy. Induction Phase: During Cycles 1-6 (C1-C6), Orelabrutinib 150mg is administered orally once daily (qd) on Days 1-21 (d1-d21) of each cycle. 2. Stage II-IV MZL Patients: Treatment with the Orelabrutinib plus CD20 monoclonal antibody regimen, divided into an induction phase and a maintenance phase. Induction Phase: During Cycles 1-6 (C1-C6), Orelabrutinib 150mg is administered orally once daily (150mg qd d1-d21/C1-C6). Concurrently, a CD20 monoclonal antibody is used: either Rituximab 375mg/m² intravenously (iv) on Day 1 of each cycle (d1/C1-C6); or Obinutuzumab, administered as 1000mg intravenously on Days 1, 8, and 15 of Cycle 1 (1000mg iv d1,d8,d15/C1), followed by 1000mg intravenously on Day 1 of Cycles 2-6 (1000mg iv d1/C2-C6). Maintenance Phase: If maintenance therapy is administered, during Cycles 7-30 (C7-C30), Orelabrutinib 150mg is administered orally once daily (qd) on Days 1-28 (d1-d28) of each cycle.

Sponsors & Collaborators

  • Beijing Tongren Hospital

    lead OTHER

Principal Investigators

  • Liang Wang, MD · Beijing Tongren Hospital

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-11-25
Primary Completion
2027-09-30
Completion
2028-12-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07355699 on ClinicalTrials.gov