Ofatumumab for Minimal Residual Disease (MRD) and Maintenance Therapy

Ofatumumab for Residual Disease and Maintenance Following Chemotherapy or Chemoimmunotherapy in Patients With Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Lymphoma (SLL)

The goal of this clinical research study is to find out if ofatumumab can control CLL or SLL that is left after chemotherapy or chemoimmunotherapy. The safety of the drug will also be studied.

Study Overview

• Status: Terminated
• Conditions: Lymphoma; Leukemia
• Intervention / Treatment: Drug: Ofatumumab

Detailed Description

The Study Drug:

Ofatumumab is designed to bind to the surface of some white blood cells (B-cells) and to kill these cells. It can destroy cancer cells that come from B-cells, and can be used to treat cancers of B-cells such as B-CLL.

Study Drug Administration If you are found to be eligible to take part in this study, you will receive ofatumumab up to 20 times during this study. You will receive 8 weekly infusions and then an infusion every 2 months for 2 years or until the disease gets worse. You will receive ofatumumab by vein over about 6 ½ hours the first time and over 4 hours for all the following infusions. The first infusion will be the smallest dose. The second and later infusions will be 3 times larger than the first.

Before you receive the study drug each time, you will receive Tylenol (acetaminophen) by mouth to reduce the risk of fever. You will receive Benadryl (diphenhydramine) by mouth or vein and prednisolone (a steroid) by vein over about 30 minutes to reduce the risk of an allergic reaction or an infusion reaction.

During the infusions, you will be monitored closely. You will be expected to stay in clinic for about 71/2 hours on the day of the first infusion and 5 hours for all other infusions.

You will be seen at MD Anderson for mandatory visits for enrollment, ofatumumab infusions, for response assessment after 8 weekly ofatumumab doses (Month 3), during maintenance every 6 months and for follow-up at least once a year. Your local doctor may perform other visits and laboratory studies.

If you decide to have your local doctor perform study visits and laboratory studies, a letter will be sent to your doctor, describing your participation in this study and asking for your doctor's agreement to help manage your care.

Study Visits

The following tests and procedures will be performed every other week during Weeks 1- 8 (Weeks 1, 3, 5 and 7):

You will have a complete physical exam including measurement of your vital signs.

Your medical history will be recorded. Blood (about 2 teaspoons) will be drawn for routine tests.

Starting at Month 3, you will have the following tests and procedures every 2 Months:

You will have a complete physical exam including measurement of your vital signs.

Your medical history will be recorded. Blood (about 2 teaspoons) will be drawn for routine tests.

Starting at Month 3, you will also have the following tests and procedures every 6 months, in addition to the ones performed every 2 months:

Blood (about an additional 1 teaspoon) will be drawn for other routine tests. You may have CT scans to check the status of the disease, if your doctor thinks that this test is needed (at Month 3 only).

You will have a bone marrow aspirate/biopsy to check the status of the disease.

Additional Information Depending on the results of your hepatitis tests performed at the screening visit, you may have additional hepatitis tests. The study staff will tell you if you will have these tests performed. If you do have the additional hepatitis tests, blood (about 2 teaspoons) will be drawn during Months 3-24. The blood will be drawn at the same time of the routine blood draws to prevent unnecessary needle sticks.

Length of Study You may continue taking the study drug for up to 20 doses (up to 24 months). You will no longer be able to take the study drug if the disease gets worse or intolerable side effects occur.

Your participation on the study will be over once you have completed the follow-up visits, which will last until you begin receiving any other treatment.

Follow Up Visits Every 3 Months You will have a complete physical exam including measurement of your vital signs.

Your medical history will be recorded. Blood (about 2 teaspoons every 3 months, about 1 teaspoon every 6 months) will be drawn for routine tests.

If your doctor thinks it is needed, blood (about 2 teaspoons) will be drawn for hepatitis testing.

Every 6 Months, you will have a bone marrow aspirate/biopsy to check the status of the disease.

This is an investigational study. Ofatumumab is FDA approved for CLL resistant to standard chemotherapy. Ofatumumab's use in patients with residual CLL or SLL is investigational.

Ofatumumab will be provided at no cost to you while you are on the study.

Up to 42 patients will take part in this study. All will be enrolled at MD Anderson.

• Study Type: Interventional
• Enrollment (Actual): 4
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Texas
    • Houston, Texas, United States, 77030
      • University of Texas MD Anderson Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Diagnosis of CD20+ chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) treated with chemotherapy or chemoimmunotherapy: Post-frontline therapy, patients must have non-progressing disease and be 4 months to 1 year post treatment. Post-treatment for relapsed CLL, eligible patients must have non-progressing disease and be 3 months to 1 year post treatment.
2. Patients (CR, nPR, or PR at enrollment) must have measurable disease, which may include MRD by 4-color flow cytometry.
3. Adequate renal and hepatic function (creatinine < 2 mg/dL, bilirubin < 2 mg/dL). Patients with renal or liver dysfunction due to organ infiltration by lymphocytes may be eligible after discussion with the study chairman. Patients with Gilbert's syndrome are eligible.
4. Age >/= 18 years.
5. ECOG performance status of 0-2.
6. Provide informed consent indicating patient is aware of the investigational nature of this study according to the policies of the MDACC IRB.
7. Patients of childbearing potential (females who have not been postmenopausal for at least 12 consecutive months or who have not undergone previous surgical sterilization or males who have not been surgically sterilized) must be willing to practice birth control during the study.

Exclusion Criteria:

1. Positive serology for Hepatitis B virus (HB) defined as a positive test for HBsAg. In addition, if negative for HBsAg but HBcAb positive (regardless of HBsAb status), a HB DNA test will be performed and if positive the subject will be excluded.
2. Concurrent chemotherapy, radiotherapy, or immunotherapy, including other monoclonal antibodies. Localized radiotherapy to an area not comprising bone marrow function does not apply.
3. Active infection or significant medical illness, including current active hepatic or biliary disease (with exception of patients with asymptomatic gallstones, liver involved with CLL or stable chronic liver disease per investigator assessment).
4. Pregnant and breastfeeding females are excluded.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Ofatumumab; Ofatumumab 300 mg dose 1, then 1,000 mg weekly * 7, (treatment) then 1,000 mg every 2 months beginning on week 12 for a total of 2 years of treatment or until progression (maintenance) of disease. The follow-up period will be the period after completion of maintenance.	Drug: Ofatumumab; 300 mg Dose 1, then 1,000 mg weekly x 7, (treatment) then 1,000 mg every 2 months beginning on week 12; Other Names: Arzerra

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of Patients With Objective Response	Response assessment according to 2008 International Working Group for CLL (IWCLL), prior to 9th dose of ofatumumab (prior to first bimonthly dose). Responses of (complete remission (CR) conversion to minimal residual disease (MRD) negative, partial remission (PR) conversion to nodular partial remission nPR or CR, and nPR conversion to complete remission (CR)) evaluated by physical examination, CBC, CT of chest, abdomen, pelvis, and bone marrow aspirate and biopsy with evaluation of residual disease (MRD) by 4-color flow cytometry.	Week 12

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Time-to-Treatment Failure (TTF)	Time from date of treatment start until the date of failure or death from any cause.	Start of study drug up to approximately 1 year and 7 months.
Progression-Free Survival (PFS)	Time from date of treatment start until the date of progression or death from leukemia.	Start of study drug up to approximately 7 years and 6 months.

Collaborators and Investigators

• Sponsor: M.D. Anderson Cancer Center
• Collaborators: GlaxoSmithKline
• Investigators: Principal Investigator: William G Wierda, MD, M.D. Anderson Cancer Center

Publications and helpful links

Helpful Links

• MD Anderson Cancer Center

Study record dates

Study Major Dates

• Study Start (Actual): July 6, 2011
• Primary Completion (Actual): October 18, 2024
• Study Completion (Actual): October 18, 2024

Study Registration Dates

• First Submitted: December 9, 2010
• First Submitted That Met QC Criteria: December 10, 2010
• First Posted (Estimated): December 13, 2010

Study Record Updates

• Last Update Posted (Estimated): October 1, 2025
• Last Update Submitted That Met QC Criteria: September 12, 2025
• Last Verified: September 1, 2025

More Information

Terms related to this study

• Keywords: Ofatumumab; Lymphoma; Leukemia; CLL; Chronic Lymphocytic Leukemia; SLL; Small Lymphocytic Lymphoma
• Additional Relevant MeSH Terms: Pathologic Processes; Neoplasms; Chronic Disease; Disease Attributes; Immune System Diseases; Neoplasms by Histologic Type; Hematologic Diseases; Lymphatic Diseases; Lymphoproliferative Disorders; Immunoproliferative Disorders; Leukemia, B-Cell; Leukemia, Lymphoid; Pathological Conditions, Signs and Symptoms; Hemic and Lymphatic Diseases; Leukemia; Lymphoma; Leukemia, Lymphocytic, Chronic, B-Cell; Antineoplastic Agents; ofatumumab
• Other Study ID Numbers: 2010-0266; NCI-2011-00274 (Registry Identifier: NCI CTRP)

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No