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Clinical Trial Summary

Ofatumumab is an IgG1κ fully human monoclonal antibody (mAb) that specifically recognizes an epitope on the human differentiation antigen CD20 molecule. In vitro and in vivo studies demonstrated that ofatumumab depletes CD20 positive (CD20+) B cells through complement-dependent cytotoxicity (CDC) and antibody-dependent cell-mediated cytotoxicity (ADCC), which results in the antitumour effect.

This is an open-label study to evaluate safety, tolerability, efficacy and PK profile of ofatumumab monotherapy in chronic lymphocytic leukemia (CLL) patients. Ofatumumab will be administered intravenously at the first dose of 300mg followed by 7 weekly infusions of 2000mg, followed by 4 infusions of 2000mg at every 4 weeks.

Primary objective of the study (Part A) is to evaluate tolerability, and the study (Part B) is to assess overall response rate in CLL population.

10 subjects will be enrolled into this study. Subjects will be followed for 48 weeks.


Clinical Trial Description

Ofatumumab is an IgG1κ fully human monoclonal antibody (mAb) that specifically recognizes an epitope on the human differentiation antigen CD20 molecule. In vitro and in vivo studies demonstrated that ofatumumab depletes CD20 positive (CD20+) B cells through complement-dependent cytotoxicity (CDC) and antibody-dependent cell-mediated cytotoxicity (ADCC), which results in the antitumour effect.

This is an open-label study to evaluate safety, tolerability, efficacy and PK profile of ofatumumab monotherapy in chronic lymphocytic leukemia (CLL) patients. Ofatumumab will be administered intravenously at the first dose of 300mg followed by 7 weekly infusions of 2000mg, followed by 4 infusions of 2000mg at every 4 weeks.

Primary objective of the study (Part A) is to evaluate tolerability, and the study (Part B) is to assess overall response rate in CLL population.

10 subjects will be enrolled into this study. Subjects will be followed for 48 weeks. ;


Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01077622
Study type Interventional
Source GlaxoSmithKline
Contact
Status Completed
Phase Phase 2
Start date September 2009
Completion date April 2011

See also
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Terminated NCT01039376 - Ofatumumab Maintenance Treatment vs No Further Treatment in Relapsed CLL Responding to Induction Therapy Phase 3
Completed NCT01110031 - Ofatumumab Cardiac Repolarization (QTc) Study in Fludarabine-Refractory Chronic Lymphocytic Leukemia Subjects Phase 1
Active, not recruiting NCT01520922 - Ofatumumab Plus Bendamustine in Frontline and Relapsed Chronic Lymphocytic Leukaemia (CLL) Phase 2
Completed NCT00824265 - Ofatumumab Added to Fludarabine-Cyclophosphamide vs Fludarabine-Cyclophosphamide Combination in Relapsed Subjects With Chronic Lymphocytic Leukemia Phase 3
Completed NCT00349349 - HuMax-CD20 in B-Cell Chronic Lymphocytic Leukemia (B-CLL) Patients Failing Fludarabine and Alemtuzumab Phase 2
Completed NCT00802737 - Efficacy and Safety of Ofatumumab Retreatment and Maintenance Treatment in Patients With B-cell Chronic Lymphocytic Leukemia (CLL) Phase 4
Completed NCT00410163 - Ofatumumab With Fludarabine and Cyclophosphamide in B-CLL Patients Phase 2
Terminated NCT00748189 - Ofatumumab + Chlorambucil vs Chlorambucil Monotherapy in Previously Untreated Patients With Chronic Lymphocytic Leukemia Phase 3
Completed NCT01563055 - A Phase I/II, Open-label Study of Ofatumumab Added to Chlorambucil in Previously Untreated Japanese Patients With Chronic Lymphocytic Leukemia Phase 2