A Study to Assess the Efficacy, Safety, Pharmacodynamics, and Pharmacokinetics of Tazemetostat in Combination With Lenalidomide Plus Rituximab Versus Placebo in Combination With Lenalidomide Plus Rituximab in Adult Patients at Least 18 Years of Age With Relapsed/Refractory Follicular Lymphoma.

NCT04224493 · Status: ACTIVE_NOT_RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 555

Last updated 2026-04-20

No results posted yet for this study

Summary

The participants of this study would have relapsed/refractory follicular lymphoma.

Follicular lymphoma is a type of blood cancer. It is referred to as 'relapsed' when the disease has come back after a period of improvement after that follows a treatment regimen and 'refractory' when treatment no longer works.

Stage 1 of this trial will study the safety and the level that adverse effects of each of the study drug combinations can be tolerated (known as tolerability). It is also designed to establish a recommended study drug dosage for stage 2 and 3. Stage 1 of the study is completed.

Stages 2 and 3 will evaluate and compare how long participants live without their disease getting worse when receiving the study drug in combination with other drug treatment versus the placebo (dummy drug) in combination with other drug treatment.

Conditions

Interventions

DRUG

Tazemetostat

Stage 1 (Phase 1b): Tazemetostat was escalated from a starting dose of 400 mg orally twice daily to 600 mg orally twice daily to 800 mg PO twice daily in 28-day cycles as tolerated in a standard 3 + 3 design. Tazemetostat will be administered as monotherapy at an 800 mg twice daily dose for up to 2 years after the initial 12 months of combination therapy.

DRUG

Tazemetostat

Stage 2: Tazemetostat 800 mg administered orally twice daily in continuous 28-day cycles for 12 cycles. Tazemetostat will be administered as monotherapy at an 800 mg twice daily dose for up to 2 years after the initial 12 months of combination therapy.

DRUG

Placebo oral tablet

Stage 2: Placebo administered orally twice daily in continuous 28-day cycles. Placebo will be administered as monotherapy twice daily dose for up to 2 years after the initial 12 months of combination therapy.

COMBINATION_PRODUCT

Lenalidomide

Lenalidomide 20 mg capsules or 10 mg capsules (if creatinine clearance ≥60 mL/minute or \<60 mL/minute), administered PO QD on days 1 to 21 for 12 cycles.

COMBINATION_PRODUCT

Rituximab

Rituximab 375 mg/m2 IV on days 1, 8, 15, and 22 of cycle 1; then on day 1 of cycles 2 to 5.

Sponsors & Collaborators

  • Epizyme, Inc.

    lead INDUSTRY

Principal Investigators

  • Ipsen Medical Director · Ipsen

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-06-11
Primary Completion
2027-02-13
Completion
2029-03-01
FDA Drug
Yes

Countries

  • United States
  • Australia
  • Belgium
  • Brazil
  • Canada
  • China
  • France
  • Germany
  • Hungary
  • Italy
  • Poland
  • Singapore
  • South Korea
  • Spain
  • Taiwan
  • Turkey (Türkiye)
  • United Kingdom

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04224493 on ClinicalTrials.gov