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A Study to Compare the Efficacy and Safety of a Combined Regimen of Venetoclax and Obinutuzumab Versus Fludarabine, Cyclophosphamide, and Rituximab (FCR)/ Bendamustine And Rituximab (BR) in FIT Patients With Previously Untreated Chronic Lymphocytic Leukemia (CLL) Without DEL (17P) or TP53 Mutation

NCT04285567 · Status: COMPLETED · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 166

Last updated 2026-03-03

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Summary

This study will evaluate the efficacy and safety of venetoclax and obinutuzumab (VEN + G) compared with fludarabine + cyclophosphamide + rituximab or bendamustine + rituximab (FCR/BR) in FIT participants (FIT is defined by a cumulative illness rating scale \[CIRS\]/score of ≤6 and a normal creatinine clearance of ≥70 mL/min) with previously untreated CLL without DEL(17P) or TP53 mutation requiring treatment. Eligible participants will be randomly assigned in a 1:1 ratio to receive either VEN + G (Arm A) or FCR/BR (Arm B).

Conditions

  • Chronic Lymphocytic Leukemia (CLL)

Interventions

DRUG

Obinutuzumab

Obinutuzumab 1000 milligrams (mg) will be administered IV on Days 1 (and 2), 8, and 15 of Cycle 1 and on Day 1 of Cycles 2-6.

DRUG

Venetoclax

Venetoclax 20 mg will be administered orally, once daily starting on Day 22 of Cycle 1 for 7 days, then ramp up from 50 to 400 mg/day during Cycle 2 and continue at 400 mg/day from Day 1 of Cycle 3 till end of Cycle 12.

DRUG

Fludarabine

Fludarabine will be administered in a dosage of 25 milligram per meter squared (mg/m\^2), IV, on days 1, 2, and 3 of Cycles 1-6.

DRUG

Cyclophosphamide

Cyclophosphamide will be administered in a dosage of 250 mg/m\^2, IV, on Days 1, 2, and 3 Cycles 1-6.

DRUG

Rituximab

Rituximab will be administered at a dose of 375 mg/m\^2, IV, on Cycle 1, Day 1 followed by 500 mg/m\^2 on Day 1 of Cycles 2-6.

DRUG

Bendamustine

Bendamustine will be administered at a dose of 90 mg/m\^2, IV, on 2 consecutive days of Cycles 1-6.

Sponsors & Collaborators

Principal Investigators

  • Clinical trial · Hoffmann-La Roche

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-05-28
Primary Completion
2024-03-19
Completion
2025-03-19
FDA Drug
Yes

Countries

  • United States
  • Australia
  • France
  • Italy
  • Spain

Study Locations

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Entities

Drugs
Companies

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 NCT04285567 on ClinicalTrials.gov