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Comparison of the Treatments of Obinutuzumab + Venetoclax Versus Obinutuzumab + Chlorambucil in Patients With Chronic Lymphocytic Leukemia

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Roche

Status and phase

Active, not recruiting
Phase 3

Conditions

Lymphocytic Leukemia, Chronic

Treatments

Drug: Chlorambucil
Drug: Venetoclax
Drug: Obinutuzumab

Study type

Interventional

Funder types

Other
Industry

Identifiers

NCT02242942
BO25323
CLL14
2014-001810-24 (EudraCT Number)

Details and patient eligibility

About

This open-label, multicenter, randomized Phase III study is designed to compare the efficacy and safety of a combined regimen of obinutuzumab and venetoclax versus obinutuzumab + chlorambucil in participants with chronic lymphocytic leukemia (CLL) and coexisting medical conditions. The time on study treatment was approximately one year and the follow-up period will be up to 9 years

Enrollment

445 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Documented previously untreated CLL according to the International Workshop on Chronic Lymphocytic Leukemia (IWCLL) criteria
  • CLL requiring treatment according to IWCLL criteria
  • Total Cumulative Illness Rating Scale (CIRS score) greater than (>) 6
  • Adequate marrow function independent of growth factor or transfusion support within 2 weeks of screening as per protocol, unless cytopenia is due to marrow involvement of CLL
  • Adequate liver function
  • Life expectancy > 6 months
  • Agreement to use highly effective contraceptive methods per protocol

Exclusion criteria

  • Transformation of CLL to aggressive Non-Hodgkin's lymphoma (Richter's transformation or pro-lymphocytic leukemia)
  • Known central nervous system involvement
  • Participants with a history of confirmed progressive multifocal leukoencephalopathy (PML)
  • An individual organ/ system impairment score of 4 as assessed by the CIRS definition limiting the ability to receive the treatment regimen of this trial with the exception of eyes, ears, nose, throat organ system
  • Participants with uncontrolled autoimmune hemolytic anemia or immune thrombocytopenia
  • Inadequate renal function
  • History of prior malignancy, except for conditions as listed in the protocol if participants have recovered from the acute side effects incurred as a result of previous therapy
  • Use of investigational agents or concurrent anti-cancer treatment within the last 4 weeks of registration
  • Participants with active bacterial, viral, or fungal infection requiring systemic treatment within the last two months prior to registration
  • History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies or known sensitivity or allergy to murine products
  • Hypersensitivity to chlorambucil, obinutuzumab, or venetoclax or to any of the excipients
  • Pregnant women and nursing mothers
  • Positive test results for chronic hepatitis B virus (HBV) infection (defined as positive hepatitis B surface antigen [HBsAg] serology) or positive test result for hepatitis C (hepatitis C virus [HCV] antibody serology testing)
  • Participants with known infection with human immunodeficiency virus (HIV) or human T-cell leukemia virus-1 (HTLV-1)
  • Requires the use of warfarin, marcumar, or phenprocoumon
  • Received agents known to be strong and moderate Cytochrome P450 3A inhibitors or inducers within 7 days prior to the first dose of study drug

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

445 participants in 3 patient groups

Safety Run-in Obinutuzumab + Venetoclax
Experimental group
Description:
Subjects received obinutuzumab for 6 cycles and venetoclax for 12 cycles. Cycles comprised of 28 days.
Treatment:
Drug: Obinutuzumab
Drug: Venetoclax
Obinutuzumab + Chlorambucil
Experimental group
Description:
Participants will receive obinutuzumab for 6 cycles and chlorambucil for 12 cycles. Cycles will comprise 28 days.
Treatment:
Drug: Obinutuzumab
Drug: Chlorambucil
Obinutuzumab + Venetoclax
Experimental group
Description:
Participants will receive obinutuzumab for 6 cycles and venetoclax for 12 cycles. Cycles will comprise 28 days.
Treatment:
Drug: Obinutuzumab
Drug: Venetoclax

Trial documents
2

Trial contacts and locations

137

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Data sourced from clinicaltrials.gov

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