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New-diagnosed PCNSL Treated With Methotrexate (MTX) and Orelabrutinib-based Regimen

A Retrospective Case-control Study of Newly-diagnosed Primary Central Nervous System Lymphoma (PCNSL) Treated With Methotrexate (MTX)-Based Chemotherapy in Combination With Orelabrutinib

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06115824
Enrollment
136
Registered
2023-11-03
Start date
2023-08-10
Completion date
2024-07-30
Last updated
2025-09-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Primary Central Nervous System Lymphoma

Brief summary

This study was a single-centre, retrospective study that retrospectively collected first-line PCNSL patients receiving methotrexate-based chemotherapy ± orelabrutinib at Huashan Hospital of Fudan University. The study was divided into two retrospective cohorts, Cohort A was a cohort of patients receiving methotrexate-based chemotherapy alone, and Cohort B was a cohort of patients receiving methotrexate-based chemotherapy + orelabrutinib.

Detailed description

The study was divided into two retrospective cohorts of approximately 35-40 patients each. Cohort A was the cohort of patients who received methotrexate-based chemotherapy alone, and cohort B was the cohort of patients who received methotrexate-based chemotherapy + orelabrutinib. Statistical analyses such as propensity score analysis (PSM) and inverse probability weighted (IPTW) analysis were performed, focusing on comparing and analysing the short-term efficacy data (ORR, CR) and long-term efficacy data (PFS, OS) of the two cohorts.

Interventions

DRUGOrelabrutinib

Combination of orelabrutinib on a methotrexate-based chemotherapy regimen with a starting dose of 150 mg/d

Sponsors

Huashan Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years

Inclusion criteria

* Pathologically confirmed primary central nervous system lymphoma * Methotrexate-based chemotherapy ± orelabrutinib regimen as first-line treatment for patients

Exclusion criteria

* Patients receiving ≤2 cycles of treatment without efficacy evaluation * Those with uncontrolled or significant cardiovascular disease, including: uncontrolled diabetes mellitus, severe cardiac, pulmonary, hepatic, renal insufficiency) and haematological, endocrine system lesions, history of other uncontrollable malignancies

Design outcomes

Primary

MeasureTime frameDescription
Objective response rate (ORR)At the end of induction therapy, Cycle 6-8 (each cycle is 28 days)ORR is defined as the proportion of patients with a best response of CR, CRu or PR during induction therapy

Secondary

MeasureTime frameDescription
PFSUp to 2 yearsProgression-free survival is calculated from the date of start of therapy until the date of first documented progress or death due to any cause

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026