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A Multicenter, Phase 2 Study Evaluating the Value of Radiotherapy in Advanced Diffuse Large B-cell Lymphoma Patients With Extranodal Involvement and Large Tumors Undergoing Immunochemotherapy for PET-CT Assessment of Complete Remission

NCT05874778 · Status: NOT_YET_RECRUITING · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 108

Last updated 2023-05-25

No results posted yet for this study

Summary

This study is a prospective, single center, phase II clinical study involving 108 patients with primary and late stage Diffuse Large B-cell Lymphoma complicated by large masses and extranodal involvement. The study aims to evaluate the efficacy of radiotherapy targeting large masses and extranodal involvement in treatment-naïve advanced DLBCL patients with large mass lesions and/or extranodal involvement after they had initially been treated with standard immunochemotherapy and received complete remission as assessed by PET-CT.

After completing the standard immunochemotherapy, subjects will be randomly divided into the radiotherapy group or the non-radiotherapy group, and the curative effects will be evaluated every three months after the end of the treatment or after their leaving the group, so as to obtain the relevant data and data of the 2-year Progression Free Survival, survival of the subjects and Treatment-related side effects.

Conditions

  • Advanced Diffuse Large B-Cell Lymphoma
  • Extra-nodal Involvement, Large Mass
  • Radiotherapy

Interventions

DRUG

6-8 cycles (21 days per cycle) of Standard R-CHOP chemotherapy

All enrolled patients will first complete a total of 6-8 cycles (21 days per cycle) of Standard R-CHOP chemotherapy (Rituximab + Cyclophosphamide + Doxorubicin + Prednisolone) and conduct evaluation about treatment effects (i.e. efficacy evaluation) once every 2 cycles, and after their completion of the 6th cycle, they will receive maintenance treatment . After the end of 6th cycle of treatment or after their leaving the group, efficacy evaluation is conducted every three months to obtain relevant data regarding the 2-year Progression-Free Survival(PFS) and survival of the subjects.

RADIATION

Radiotherapy beyond standard R-CHOP Chemotherapy

Radiotherapy: after completion of the standard R-CHOP treatment, enrolled patients will be divided into radiotherapy group and non-radiotherapy group. In radiotherapy group, further consolidation radiotherapy targeting patients' pre-treatment large masses or extranodal affected areas will be given, with routine segmentation of 30-36Gy/15-18f.

Sponsors & Collaborators

  • Tianjin Medical University Cancer Institute and Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-05-15
Primary Completion
2026-05-15
Completion
2026-05-15

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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 NCT05874778 on ClinicalTrials.gov