Tirabrutinib Maintenance Versus Placebo in Patients With Primary CNS Lymphoma in Complete Remission (JCOG2104)

Trial statusRecruiting
Trial phasePhase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorKyorin University

About this trial

A double-blind, randomized phase II comparative trial will evaluate the superiority of the investigational treatment (tirabrutinib maintenance therapy) over standard care (observation with placebo) in terms of progression-free survival in patients with newly diagnosed primary central nervous system lymphoma (PCNSL) who have achieved complete response (CR or CRu) following induction therapy with high-dose methotrexate (HD-MTX)-based chemotherapy and have not undergone consolidative whole-brain irradiation.

Participants will:

Take protocol drug tirabrutinib or a placebo every day until disease progression or experience of unacceptable toxicity.

Visit the clinic once every 4 weeks for checkups and tests, as well as protocol drug prescription.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Histopathological diagnosis of B cell lymphoma.

Newly-diagnosed PCNSL confined to the cerebrum, cerebellum and brainstem. Patients with or without interocular lymphoma are eligible.

Negative cerebrospinal fluid (CSF) cytology, or no evidence of leptomeningeal lymphomatosis in contrast-enhanced magnetic resonance imaging (MRI) of the brain and the whole spinal cord.

No evidence of systemic lymphoma before induction chemotherapy, confirmed by contrast-enhanced CT including the neck, chest, abdomen, pelvic cavity and groin, or whole-body positron-emission tomography (PET) and CT.

Disqualifiers

Synchronous or metachronous malignancies.

Infections requiring systemic treatment at the time of registration.

Body temperature >=38 degree celsius at the time of registration.

Serious lung disorders, such as interstitial pneumonia, obstructive lung disease, hypersensitive pneumonitis, symptomatic bronchospasm) at the time of registration.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Tirabrutinib

    Drug

    Tirabrutinib (480 mg) taken orally daily at fasting condition

  • Placebo

    Drug

    Placebo taken orally daily at fasting condition

Treatment groups

92 Participants
are divided into 2 treatment groups
Group A: Standard armPlacebo comparator 1 intervention
Group B: Experimental armExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Progression-free survival (PFS) based on independent review committee (IRC) assessment

Time frame
From the date of registration until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 78 months

Secondary outcomes

1

Progression-free survival (PFS) determined by investigator

Time frame
From the date of registration until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 78 months
2

Overall survival (OS)

Time frame
From the date of registration until the date of death from any cause, assessed up to 78 months
3

PFS/OS in the maintenance per protocol group

Time frame
PFS: From the date of registration until the date of first progression or date of death from any cause, whichever came first, assessed up to 78 months. OS: From the date of registration until the date of death from any cause, assessed up to 78 months.
4

PFS/OS by the induction therapy regimen with or without consolidation therapy

Time frame
PFS: From the date of registration until the date of first progression or date of death from any cause, whichever came first, assessed up to 78 months. OS: From the date of registration until the date of death from any cause, assessed up to 78 months.

Other outcomes

Sponsors and contacts

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Kyorin University

Lead sponsor

National Cancer Center, Japan

Collaborator

Ono Pharmaceutical Co., Ltd.

Collaborator

Japan Clinical Oncology Group

Collaborator