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Rituximab, Methotrexate, and Tepadina Induction Followed by Etoposide and Cytarabine Consolidation in Primary Central Nervous System Lymphoma

NCT06946407 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 41

Last updated 2025-04-27

No results posted yet for this study

Summary

High-dose methotrexate (HD-MTX) remains the foundation of treatment for primary central nervous system lymphoma (PCNSL), but outcomes are suboptimal. The addition of rituximab has shown mixed results, partly due to limited blood-brain barrier penetration. The MATRix regimen (rituximab, HD-MTX, cytarabine, thiotepa) has improved survival but is associated with significant toxicity.

Consolidation therapy is recommended after induction, but there is no standard approach. Preliminary data suggest that etoposide and cytarabine (EA) consolidation after rituximab-HD-MTX induction may offer improved tolerability, though relapse rates remain high.

This study evaluates the safety, efficacy, and tolerability of a novel RMT-EA regimen-rituximab, methotrexate, and thiotepa (RMT) induction followed by etoposide and cytarabine (EA) consolidation-in newly diagnosed, untreated PCNSL patients. The aim is to improve remission depth and prolong disease-free survival, especially in younger patients.

Conditions

  • Primary Central Nervous System Lymphoma (PCNSL)
  • CNS Lymphoma Treatment

Interventions

DRUG

Rituximab, Methotrexate, and Thiotepa (R-MT) Induction Followed by Etoposide and Cytarabine (EA) Consolidation

Pre-induction Therapy (R-M regimen): Cycle 1-2 (C1-C2): Rituximab (R): 375 mg/m² IV, on Day 1 Methotrexate (MTX): 3.5 g/m² IV over 3 hours, on Day 2 Induction Therapy (R-MT regimen): Cycle 3-6 (C3-C6): Rituximab (R): 375 mg/m² IV, on Day 1 Methotrexate (MTX): 3.5 g/m² IV over 3 hours, on Day 2 Thiotepa (T): 30 mg/m² IV over 30 minutes, on Day 3 Consolidation Therapy (EA regimen): Cycle 7-8 (C7-C8): Etoposide (E): 5 mg/kg IV, every 12 hours on Days 1 and 2 Cytarabine (A): 2.0 g/m² IV over 2 hours, every 12 hours on Days 3 and 4

Sponsors & Collaborators

  • FengYan Jin

    lead OTHER

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Max Age
60 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-12-02
Primary Completion
2027-12-01
Completion
2029-12-01

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 NCT06946407 on ClinicalTrials.gov