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Rituximab Maintenance Therapy in Aggressive CD20 (Cluster of Differentiation Antigen 20) Positive Lymphoma and Mantle Cell Lymphoma

U

University Hospital Heidelberg

Status and phase

Unknown
Phase 3

Conditions

CD20+ Aggressive Lymphoma, Mantle Cell Lymphoma

Treatments

Drug: rituximab

Study type

Interventional

Funder types

Other

Identifiers

Details and patient eligibility

About

Clinical and pharmacokinetic data suggest that the effect of rituximab could be improved by prolonged exposure to the drug. To test for this hypothesis we performed a prospective randomized trial of rituximab maintenance therapy versus observation in patients (pts) with aggressive CD20+ B-cell lymphoma and mantle cell lymphoma.

Full description

After completion of standard treatment, pts with aggressive CD20+ B-cell lymphoma and mantle cell lymphoma were randomized to either observation or maintenance therapy with rituximab (375 mg/m2) administered every 3 months for 2 years. Both pts after first line therapy and pts after relapse treatment were included in the study. Pts with aggressive lymphoma were enrolled if they had achieved a complete response (CR) after initial treatment. Pts with aggressive lymphoma with residual tumor mass underwent positron emission tomography (PET) and qualified for randomization if this examination showed no signs of tumor activity. Pts with mantle cell lymphoma were eligible for the study if at least a partial response (PR) was achieved. Primary endpoint of the study was progression free survival (PFS), secondary endpoints were time to progression (TTP), overall survival (OS) and response to treatment. Differences between PFS and OS were analysed using the logrank test and the proportional hazard model of Cox. TTP was analyzed using a competing risk model with death as competing event.

Enrollment

328 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria:

  • aggressive B-cell lymphoma or mantle cell lymphoma
  • CR (complete remission) oder CRu (complete remission unconfirmed) after previous therapy
  • PR (partial remission) only when PET is negative
  • minimal age 18 years
  • CD20+ expression on tumor cells
  • effective contraception
  • Karnofsky status > 60
  • written informed consent

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

328 participants in 2 patient groups

Rituximab maintenance
Experimental group
Description:
maintenance therapy with rituximab (375 mg/m2) administered every 3 months for 2 years.
Treatment:
Drug: rituximab
Observation
No Intervention group
Description:
observational arm, no intervention

Trial contacts and locations

3

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Data sourced from clinicaltrials.gov

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