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A Study to Assess the Long-term Safety of Tazemetostat (TRuST)

E

Epizyme

Status and phase

Invitation-only
Phase 2
Phase 1

Conditions

Non-Hodgkin Lymphoma (NHL)
Renal Medullary Carcinoma
Advanced Solid Tumors
Follicular Lymphoma (FL)
Mesothelioma
Synovial Sarcoma
Diffuse Large B-cell Lymphoma (DLBCL)
Epitheliod Sarcoma (ES)

Treatments

Drug: Tazemetostat

Study type

Interventional

Funder types

Industry

Identifiers

NCT02875548
2015-004984-35 (EudraCT Number)
2023-510553-41-00 (EU Trial (CTIS) Number)
EZH-501

Details and patient eligibility

About

This study will provide continuing availability to tazemetostat for people that have previously completed participation in a tazemetostat study, either with monotherapy (single drug treatment) or combination therapy.

The aim of the study will be to assess the long-term safety of tezemetostat.

Full description

This open-label, multicenter, global study will provide continuing access to tazemetostat therapy for subjects who have completed their participation in a prior tazemetostat study (either with monotherapy or combination therapy)

without unacceptable toxicity, have not had evidence of tumor progression as defined by disease-appropriate standard criteria, and continue to receive clinical benefit from the therapy.

Subjects will receive tazemetostat as dictated in their antecedent study. Visits will be conducted per Standard of Care (SoC) as appropriate in each country and as determined by the Investigator. Subjects will be followed for long-term safety in addition to time to treatment failure (TTF) and overall survival (OS).

Enrollment

100 estimated patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  1. Subjects must meet ALL criteria to be eligible for enrollment in this study.
  2. Has demonstrated and continues to demonstrate clinical benefit from treatment with tazemetostat.
  3. Is currently receiving tazemetostat as either monotherapy or in combination with other approved drug(s) or investigational agent(s) on an Epizyme-sponsored clinical trial or any other clinical trial being conducted with tazemetostat that is not sponsored by Epizyme (including but not limited to, investigator-initiated trials). For subjects on combination therapy, treatment with other therapeutic(s) must have been completed in the antecedent study or will be provided by a source other than Epizyme if combination therapeutics are continued in this study until disease progression, treatment toxicity, subject preference or death, up to approximately 7 years.
  4. Has voluntarily provided signed written informed consent and demonstrated willingness and ability to comply with all aspects of the protocol.
  5. Has a life expectancy of ≥3 months.
  6. Has adequate hematologic, (bone marrow [BM] and coagulation factors), renal, and hepatic function. Subject must remain eligible for continued treatment with tazemetostat according to the eligibility and treatment criteria from the antecedent study

Exclusion criteria

Subjects meeting ANY of the following criteria must NOT be enrolled in this study:

  1. Has had an interruption of tazemetostat dosing of >14 days from the antecedent clinical study to starting the rollover study unless approved by the Medical Monitor.

  2. Has another malignancy other than the one for which they are receiving tazemetostat.

    • Exception: Subject who has been disease-free of a prior malignancy for 5 years or subject with a history of a completely resected non-melanoma skin cancer or successfully treated in situ carcinoma is eligible.

  3. Has thrombocytopenia, neutropenia, or anemia of Grade ≥3 (per CTCAE v5 criteria) or any prior history of myeloid malignancies, including myelodysplastic syndrome (MDS).

  4. Has a prior history of T-LBL/T-ALL.

Trial design

Primary purpose

Treatment

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

100 participants in 1 patient group

Open-label Tazemetostat
Experimental group
Description:
Participants will continue to receive the same tazemetostat dose and schedule as specified in their antecedent tazemetostat protocol. For participants on combination therapy, the other therapeutic(s) must have been completed in the antecedent study or be provided by a source other than Epizyme if combination treatment is continued in this clinical rollover study.
Treatment:
Drug: Tazemetostat

Trial contacts and locations

24

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Data sourced from clinicaltrials.gov

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