Study of Tirabrutinib (ONO-4059) in Patients With Primary Central Nervous System Lymphoma (PROSPECT Study)
An Open-label Phase II Study to Investigate the Efficacy, Safety, and Pharmacokinetics of Tirabrutinib in Patients With Primary Central Nervous System Lymphoma (PCNSL)
1 other identifier
interventional
119
1 country
39
Brief Summary
This study will evaluate the efficacy, safety, and pharmacokinetics of tirabrutinib monotherapy in patients with relapsed or refractory PCNSL (Part A), and tirabrutinib in combination with one of two different high dose methotrexate based regimens (methotrexate/ temozolomide/rituximab or rituximab/methotrexate/procarbazine/ vincristine) as first line therapy in patients with newly diagnosed, treatment naïve PCNSL (Part B)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Dec 2021
Longer than P75 for phase_2
39 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 16, 2021
CompletedFirst Posted
Study publicly available on registry
July 1, 2021
CompletedStudy Start
First participant enrolled
December 29, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 27, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
March 31, 2027
ExpectedMarch 30, 2026
March 1, 2026
4.1 years
June 16, 2021
March 25, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Overall response rate (ORR) (Part A)
Overall response rate is defined as the proportion of patients with a best overall response of Complete response (CR), Complete response - unconfirmed (CRu), or (=partial response (PR) as determined by an independent review committee according to the International PCNSL Collaborative Group (IPCG) criteria.
1 year
Tirabrutinib dose estimate (Part B)
Estimate of tirabrutinib dose in combination with each backbone induction regimen (MTR and R-MPV) based upon treatment related AEs, SAEs, and toxicities observed during the initial cycle of induction therapy in the dose-ranging phase
1 month
Incidence and severity of adverse events (AEs) and serious adverse events (SAEs) during induction (Part B)
Adverse events at each visit with the NCI CTCAE v5.0 used as a guide for the grading of severity.
4 months
Complete response rate (CRR) (Part B)
Complete response rate is defined as the proportion of patients with a best overall response of CR or CRu as determined by an independent review committee according to the IPCG criteria.
4 months
Secondary Outcomes (10)
Duration of response (DOR) (Part A and B)
2 years
Time to response (TTR) (Part A and B)
1 year
Best overall response (BOR) (Part A and B)
1 year
Change in corticosteroid dose (Part A)
2 years
Incidence and severity of AEs and SAEs (Part A and B)
2 years
- +5 more secondary outcomes
Study Arms (3)
Tirabrutinib monotherapy in patients with relapsed or refractory PCNSL (Part A)
EXPERIMENTALPatients with relapsed or refractory PCNSL who meet eligibility criteria will be enrolled to receive tirabrutinib monotherapy.
Tirabrutinib + MTR in patients with newly diagnosed, treatment naïve PCNSL (Part B, Arm 1)
EXPERIMENTALPatients with newly diagnosed treatment naïve PCNSL who meet eligibility criteria will be enrolled to receive tirabrutinib + methotrexate/temozolomide/rituximab (MTR)
Tirabrutinib + R-MPV in patients with newly diagnosed, treatment naïve PCNSL (Part B, Arm 2)
EXPERIMENTALPatients with newly diagnosed treatment naïve PCNSL who meet eligibility criteria will be enrolled to receive tirabrutinib + rituximab/methotrexate/procarbazine/vincristine (R-MPV)
Interventions
Part A: Tirabrutinib 480 mg, taken orally, once a day on an empty stomach. Tirabrutinib treatment may be continued until disease progression or clinically unacceptable toxicity is observed.
Eligibility Criteria
You may qualify if:
- Written informed consent by the patient prior to screening
- Patients aged ≥ 18 years on the day of consenting to the study
- Pathologic diagnosis of PCNSL
- Relapse or refractory PCNSL with at least one prior high dose methotrexate (HD-MTX) based therapy for PCNSL
- Measurable brain lesion with a minimum diameter \> 1.0 cm in gadolinium enhanced magnetic resonance imaging (MRI) performed within 14 days before starting tirabrutinib treatment
- Eastern Cooperative Oncology Group performance score (ECOG PS) of 0, 1 or 2
- Life expectancy of at least 3 months
- Adequate bone marrow, renal, and hepatic function
- Written informed consent by the patient prior to screening
- Patients aged ≥ 18 years on the day of consenting to the study
- Pathologic diagnosis of PCNSL within the past 3 months
- No prior anti-tumor treatments for PCNSL
- Patients who, in the opinion of the Investigator, are suitable to receive treatment with a high dose methotrexate containing regimen
- Measurable brain lesion with a minimum diameter \> 1.0 cm in gadolinium enhanced MRI performed within 14 days before starting study treatment
- ECOG PS of 0, 1 or 2
- +2 more criteria
You may not qualify if:
- Intraocular PCNSL with no brain lesion
- Patient who is intolerant of contrast enhanced MRI due to allergic reactions to contrast agents
- Patient with non-B cell PCNSL
- Patient with systemic presence of lymphoma
- Prior chemotherapy within 21 days, nitrosourea within 42 days, an antibody drug with anticancer activity (e.g., rituximab) within 28 days, prior radiotherapy within 14 days, prior major invasive surgery within 28 days, or allogeneic stem cell transplant within 6 months before starting tirabrutinib treatment
- Prior BTK inhibitor treatment
- Prior investigational drugs (including treatment in clinical research, unapproved combination products, and new dosage forms) within 28 days or 5 half-lives, whichever is shorter, before starting tirabrutinib treatment
- Concomitant systemic corticosteroid on an ongoing basis within 14 days before starting tirabrutinib treatment, with the exception of the following:
- Equivalent of up to 10 mg/day of prednisone for a disease other than PCNSL
- Equivalent of up to 50 mg/day of prednisone (equal to 8 mg/day of dexamethasone) for patients with lesions of the brain or spinal cord or both
- Patient who has received a CYP3A4 inducer or P-gp inducer within 14 days before starting tirabrutinib treatment
- Concomitant warfarin, any other warfarin derivative anticoagulant, vitamin K antagonists, novel oral anticoagulants, or antiplatelet therapy on an ongoing basis within 7 days before starting tirabrutinib treatment
- Active malignancy, other than PCNSL requiring systemic therapy
- Poorly controlled comorbidity, severe heart, severe lung disease, clinically significant liver diseases that could affect protocol compliance or safety or efficacy assessments
- Patient with bleeding diathesis
- +39 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (39)
University of Alabama at Birmingham School of Medicine
Birmingham, Alabama, 35233, United States
Mayo Clinic- Phoenix
Phoenix, Arizona, 85054, United States
City of Hope Comprehensive Breast Cancer Center
Duarte, California, 91010, United States
University of California, Irvine
Irvine, California, 92868, United States
Stanford University
Palo Alto, California, 94304, United States
University of Colorado Denver
Aurora, Colorado, 80045, United States
Yale Cancer Center
New Haven, Connecticut, 06510, United States
Georgetown University, Lombardi Comprehensive Cancer Center
Washington D.C., District of Columbia, 20037, United States
Mayo Clinic- Jacksonville
Jacksonville, Florida, 32224, United States
University of Miami-Sylvester Cancer Center
Miami, Florida, 33136, United States
Orlando Health
Orlando, Florida, 32806, United States
Moffitt Cancer Center- Miami
Pembroke Pines, Florida, 33028, United States
Piedmont Healthcare
Atlanta, Georgia, 30318, United States
University of Kentucky
Lexington, Kentucky, 40536, United States
Massachusetts General Hospital
Boston, Massachusetts, 02114, United States
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215, United States
Dana-Farber Cancer Institute - Brigham & Women's Hospital
Boston, Massachusetts, 02215, United States
University Of Michigan
Ann Arbor, Michigan, 41809, United States
Henry Ford Hospital
Detroit, Michigan, 48202, United States
The University of Kansas Cancer Center (KUCC) (Kansas City Cancer Center (KCCC)) - North
Kansas City, Missouri, 64154, United States
University of Nebraska Medical Center
Omaha, Nebraska, 68198, United States
Hackensack University Medical Center - John Theurer Cancer
Hackensack, New Jersey, 07601, United States
Roswell Park Comprehensive Cancer Center (RPCCC) (Roswell Park Cancer Institute (RPCI))
Buffalo, New York, 14263, United States
Memorial Sloan Kettering
New York, New York, 10022, United States
Columbia University Irving Medical Center
New York, New York, 10032, United States
Levine Cancer Center
Charlotte, North Carolina, 28204, United States
Duke University School of Medicine
Durham, North Carolina, 27705, United States
Cleveland Clinic
Cleveland, Ohio, 44106, United States
Providence Health Cancer Center
Portland, Oregon, 97239, United States
Penn State Hershey Cancer Center
Hershey, Pennsylvania, 17033, United States
Abramson Cancer Center University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
Hillman Cancer Center, University of Pittsburgh
Pittsburgh, Pennsylvania, 15232, United States
Lifespan Rhode Island Hospital
Providence, Rhode Island, 02903, United States
Vanderbilt-Ingram Cancer Center
Nashville, Tennessee, 37232, United States
Houston Methodist Research Institute (HMRI)
Houston, Texas, 77030, United States
MD Anderson Cancer Center
Houston, Texas, 77030, United States
The University of Utah - Huntsman Cancer Institute (HCI)
Salt Lake City, Utah, 84112, United States
The University of Vermont - Fletcher Allen Health Care
Burlington, Vermont, 05401, United States
Seattle Cancer Care Alliance
Seattle, Washington, 98109, United States
Related Links
MeSH Terms
Interventions
Study Officials
- STUDY DIRECTOR
Project Leader
Ono Pharmaceutical Co. Ltd
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 16, 2021
First Posted
July 1, 2021
Study Start
December 29, 2021
Primary Completion
January 27, 2026
Study Completion (Estimated)
March 31, 2027
Last Updated
March 30, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will not share