Orelabrutinib Combined With Teniposide, Rituximab and Methotrexate for Newly Diagnosed PCNSL

Summary

This is a three-arm, multicenter, randomized controlled trial. Eligible participants will be randomized to one of three induction regimens via stratified block randomization at a 2:2:1 ratio.

Induction regimens:

Arm A: Teniposide + orelabrutinib + rituximab + methotrexate (MTX) + dexamethasone, administered in 21-day cycles.

Arm B: Orelabrutinib + rituximab + MTX + dexamethasone, administered in 21-day cycles.

Arm C: Rituximab + MTX + dexamethasone, administered in 21-day cycles. Participants achieving complete response (CR) or unconfirmed complete response (CRu) post-induction will proceed to consolidation therapy, with options including: MTX + rituximab (once every 3 months for 1 year); high-dose chemotherapy followed by autologous stem cell transplantation (ASCT); dose-reduced whole brain radiotherapy; or other modalities (as determined by the investigator).

Conditions

• Primary Central Nervous System Lymphoma

Interventions

DRUG

Rituximab (R)

This trial enrolls eligible participants (meeting inclusion and exclusion criteria), who will be randomized to one of three induction regimens via stratified block randomization at a 2:2:1 ratio. Stratification factors include age (≤60 vs. \>60 years) and ECOG performance status (0-1 vs. 2-3). Within each stratum, blocks of size 15 will be used to ensure balanced allocation. Induction regimens: Arm A: Teniposide, orelabrutinib, rituximab, methotrexate (MTX) and dexamethasone, administered in 21-day cycles. Arm B: Orelabrutinib, rituximab, MTX and dexamethasone, administered in 21-day cycles. Arm C: Rituximab, MTX and dexamethasone, administered in 21-day cycles. Following induction therapy, participants achieving complete response (CR) or unconfirmed complete response (CRu) will proceed to consolidation therapy.

DRUG

Teniposide

This trial enrolls eligible participants (meeting inclusion and exclusion criteria), who will be randomized to one of three induction regimens via stratified block randomization at a 2:2:1 ratio. Stratification factors include age (≤60 vs. \>60 years) and ECOG performance status (0-1 vs. 2-3). Within each stratum, blocks of size 15 will be used to ensure balanced allocation. Induction regimens: Arm A: Teniposide, orelabrutinib, rituximab, methotrexate (MTX) and dexamethasone, administered in 21-day cycles. Arm B: Orelabrutinib, rituximab, MTX and dexamethasone, administered in 21-day cycles. Arm C: Rituximab, MTX and dexamethasone, administered in 21-day cycles. Following induction therapy, participants achieving complete response (CR) or unconfirmed complete response (CRu) will proceed to consolidation therapy.

DRUG

Orelabrutinib

This trial enrolls eligible participants (meeting inclusion and exclusion criteria), who will be randomized to one of three induction regimens via stratified block randomization at a 2:2:1 ratio. Stratification factors include age (≤60 vs. \>60 years) and ECOG performance status (0-1 vs. 2-3). Within each stratum, blocks of size 15 will be used to ensure balanced allocation. Induction regimens: Arm A: Teniposide, orelabrutinib, rituximab, methotrexate (MTX) and dexamethasone, administered in 21-day cycles. Arm B: Orelabrutinib, rituximab, MTX and dexamethasone, administered in 21-day cycles. Arm C: Rituximab, MTX and dexamethasone, administered in 21-day cycles. Following induction therapy, participants achieving complete response (CR) or unconfirmed complete response (CRu) will proceed to consolidation therapy.

DRUG

MTX

This trial enrolls eligible participants (meeting inclusion and exclusion criteria), who will be randomized to one of three induction regimens via stratified block randomization at a 2:2:1 ratio. Stratification factors include age (≤60 vs. \>60 years) and ECOG performance status (0-1 vs. 2-3). Within each stratum, blocks of size 15 will be used to ensure balanced allocation. Induction regimens: Arm A: Teniposide, orelabrutinib, rituximab, methotrexate (MTX) and dexamethasone, administered in 21-day cycles. Arm B: Orelabrutinib, rituximab, MTX and dexamethasone, administered in 21-day cycles. Arm C: Rituximab, MTX and dexamethasone, administered in 21-day cycles. Following induction therapy, participants achieving complete response (CR) or unconfirmed complete response (CRu) will proceed to consolidation therapy.

DRUG

Dexamethasone

This trial enrolls eligible participants (meeting inclusion and exclusion criteria), who will be randomized to one of three induction regimens via stratified block randomization at a 2:2:1 ratio. Stratification factors include age (≤60 vs. \>60 years) and ECOG performance status (0-1 vs. 2-3). Within each stratum, blocks of size 15 will be used to ensure balanced allocation. Induction regimens: Arm A: Teniposide, orelabrutinib, rituximab, methotrexate (MTX) and dexamethasone, administered in 21-day cycles. Arm B: Orelabrutinib, rituximab, MTX and dexamethasone, administered in 21-day cycles. Arm C: Rituximab, MTX and dexamethasone, administered in 21-day cycles. Following induction therapy, participants achieving complete response (CR) or unconfirmed complete response (CRu) will proceed to consolidation therapy.

Sponsors & Collaborators

• Huashan Hospital

  lead OTHER

Principal Investigators

• Tong Chen · Huashan Hospital

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

75 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-10-01

Primary Completion

2028-09-30

Completion

2029-07-30

Countries

• China

Study Locations