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A Study of Tazemetostat on Safety in Participants With Relapsed or Refractory Follicular Lymphoma With Enhancer of Zeste Homolog 2 (EZH2) Gene Mutation in Japan

A Post-marketing Observational Study of Tazemetostat on Safety in Patients With Relapsed or Refractory Follicular Lymphoma With EZH2 Gene Mutation in Japan

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05228158
Enrollment
145
Registered
2022-02-08
Start date
2021-08-16
Completion date
2028-03-31
Last updated
2026-01-02

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

Conditions

Lymphoma, Follicular

Keywords

E7438, Tazemetostat, Tazverik

Brief summary

The primary purpose of the study is to investigate the safety of tazemetostat in participants with relapsed or refractory follicular lymphoma with EZH2 gene mutation under daily clinical practice.

Interventions

DRUGTazemetostat

Tazemetostat oral tablets.

Sponsors

Eisai Co., Ltd.
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

1. Participants with relapsed or refractory follicular lymphoma with EZH2 gene mutation 2. Participants treated with tazemetostat

Exclusion criteria

1\. Participants with a history of hypersensitivity to any ingredient of Tazverik

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Drug Reactions (ADRs)Up to Week 52An ADR is defined as harmful and unintended responses to the normal administration/use of drugs, in which a causal relationship with the drug in question cannot be ruled out. Adverse events (AEs) with unknown causality to the drug among those voluntarily reported will be also considered ADRs.
Number of Participants With Serious ADRsUp to Week 52Serious ADRs are defined as any untoward medical occurrence or effect that at any dose resulted in death or life-threatening conditions or required hospitalization or prolongation of existing hospitalization, persistent or significant disability or incapacity, congenital anomaly or birth defect or medically important condition.

Secondary

MeasureTime frameDescription
Number of Participants With ADRs Based on Participant Background FactorsUp to Week 52Number of participants with ADRs such as myelosuppression and infection based on participants background factors will be reported. Participant background factors will be sex, age, height, weight, clinical stage (Ann Arbor classification), the presence or absence of B symptoms, Eastern Cooperative Oncology Group Performance Status (ECOG-PS), complications, past history and history of drug allergy.
Percentage of Participants with Overall ResponseUp to Week 52Overall response rate is defined as a percentage of participants who achieved a best response including complete response (CR) or partial response (PR) based on Revised Response Criteria for Malignant Lymphoma (Cheson, 2007). CR: defined as disappearance of all target lesions, non-target lesions, no new lesions, and normalization of tumor marker level. PR: defined as at least a 30 percent (%) decrease in the sum of diameters of target lesions, no progression in non-target lesion, and no new lesions.

Countries

Japan

Outcome results

None listed

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