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Ofatumumab With or Without Bendamustine for Patients With Mantle Cell Lymphoma Ineligible for Autologous Stem Cell Transplant

Ofatumumab With or Without Bendamustine for Patients With Mantle Cell Lymphoma Ineligible for Autologous Stem Cell Transplant

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01437709
Enrollment
30
Registered
2011-09-21
Start date
2011-09-30
Completion date
2023-09-12
Last updated
2025-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mantle Cell Lymphoma

Keywords

Bendamustine HCL, Ofatumumab (GSK 1841157), Immunotherapy, Chemoimmunotherapy, 11-050

Brief summary

This study is being done to understand how to treat Mantle Cell Lymphoma (MCL). The goals of treatment are to control the lymphoma with the least amount of side effects. In many cases, MCL is treated with an antibody plus chemotherapy. An antibody is a laboratory-produced substance created to attach to proteins on the cancer cells, eventually destroying them. Chemotherapy is medicine that specifically destroys cancer cells. The purpose of this study is to find out what effects, good and/or bad, the drugs Ofatumumab and Bendamustine have on this type of cancer. Patients in this study will either receive Ofatumumab alone, or Ofatumumab combined with Bendamustine.

Interventions

BIOLOGICALOfatumumab (This arm is closed)

Ofatumumab Day 1 Week 1: 1000 mg, Day 2 week 1: 1000mg. Patients who exhibit a baseline leukocytosis ≥ 20,000 will receive 300 mg of ofatumumab on day 1, week 1. Thereafter, they can receive the 1000 mg dose Ofatumumab Day 1, Weeks 2-4: 1000 mg Will reassess 8-10 weeks after conclusion of treatment with CT CAP, and following this q 12 wks for 2 yrs, then q 6mo until POD or for a maximum of 5 years

Ofatumumab day 1 + Bendamustine 90 mg/m2 days 1 & 2 x 6 cycles q 28 days Cycle 1, day 1: Ofatumumab 1000 mg followed by Bendamustine 90 mg/m2. Patients who exhibit a leukocytosis ≥ 20,000 will receive 300 mg of ofatumumab on day 1, week 1. Thereafter, they can receive the 1000 mg dose. Cycle 1, day 2: Ofatumumab 1000mg followed by Bendamustine 90 mg/m2 Cycles 2-6: Ofatumumab 1000 mg day 1, Bendamustine 90 mg/m2 days 1 and 2 Will reassess 4-6 weeks after conclusion of treatment with CT CAP, and following this q 12 wks for 2 yrs, then q 6mo until POD or for a maximum of 5 years

Sponsors

GlaxoSmithKline
CollaboratorINDUSTRY
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Untreated, non-transplant eligible, newly diagnosed mantle cell lymphoma with measurable disease as determined by CT, and bone marrow biopsy. * Age \> or = to 65 years or \> 18 year and ineligible for HDT/ASCT. * Subjects must not be candidates for intensive high-dose chemotherapy, with or without an autologous stem cell transplant (ASCT), due to one or more of the following factors: * Age ≥ 65 years * Patients \<65 years of age must be ineligible for HDT/ASCT on the basis of comorbidity, organ dysfunction or patient refusal for HDT/ASCT Comorbid disease, such as CAD, CHF, pulmonary dysfunction, liver or kidney dysfunction, precluding high dose therapy secondary to expected increased morbidity and mortality. * poor performance status (KPS 70% or less) * Ejection fraction \<45% * Impaired pulmonary function test with DLCO \<50% expected * Patient refusal * Medical conditions which in the opinion of the treating physician and DMT preclude HDT/ASCT. * Patients must have a serum creatinine clearance ≥ 40 mL/min (as per the Jelliffe method) or by 12-hour or 24-hour urine creatinine clearance. * Patients must have ANC\>1,000/mcl and Platelets\>100,000/mcl (unless secondary to MCL). * Patients must have a bilirubin level of \< 2.0 mg/dl in the absence of a history of Gilbert's disease (or pattern consistent with Gilbert's). * Negative serologies for Hepatitis B (HB) defined as a negative 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 negative, patient may be included but must undergo HBV DNA PCR testing at the beginning of treatment and throughout treatment duration, at least every 2 months. In addition patients will require treatment with Entacavir .5mg po qday per MSKCC institutional guidelines. * No active co-morbid cardiac condition such as active CHF or CAD. * KPS performance ≥ 70%. * Histologically confirmed mantle cell lymphoma classified according to WHO criteria confirmed at MSKCC. * No prior treatment for mantle cell lymphoma with the exception of corticosteroids for 7 days or less or 1 course of involved-field radiation. * No prior malignancies within 5 yrs, unless treated early stage breast cancer, treated carcinoma in situ of the cervix, resected skin malignancies, or treated prostate cancer. * Women who are pre-menopausal must have a negative serum pregnancy test. Subjects must agree to use appropriate contraception until 4 weeks after the completion of chemotherapy. * Patients must be HIV negative, and have negative serologies for Hepatitis C.

Exclusion criteria

* Subjects who have current active hepatic or biliary disease (with exception of patients with Gilbert's syndrome, asymptomatic gallstones, hepatic involvement by MCL, or stable chronic liver disease per investigator assessment). * Known pregnancy or breast-feeding. * Medical illness unrelated to MCL within the prior one month that will preclude administration of chemotherapy safely. This includes patients with uncontrolled infection, chronic renal insufficiency, myocardial infarction within the past 6 months, unstable angina, active congestive heart failure, cardiac arrhythmias other than chronic atrial fibrillation and chronic active or persistent hepatitis.

Design outcomes

Primary

MeasureTime frameDescription
Single Agent Efficacy (as Determined by Response Rate)2 yearsof the monoclonal antibody ofatumumab alone in low risk patients. Assessments prior to each cycle of immunotherapy or chemoimmunotherapy: (every 4 weeks)
the Efficacy (as Determined by Response Rate) of the Combination Ofatumumab + Bendamustine2 yearsin high risk patients. Assessments prior to each cycle of immunotherapy or chemoimmunotherapy: (every 4 weeks)

Secondary

MeasureTime frameDescription
Overall Survival (OS)Up to 6 yearswill be analyzed using Kaplan-Meier estimation, and logrank tests or Cox regression models when covariates are involved.
Progression Free Survival (PFS)2 yearswill be analyzed using Kaplan-Meier estimation, and logrank tests or Cox regression models when covariates are involved.
Remission DurationUp to 6 years(calculated from confirmation of CR to progression)will be analyzed using competing risks tools (with death as a competing risk for progression), and will be done on the subsets of patients who have CR or CR/PR.
Response DurationUp to 6 years(calculated from confirmation of response (CR/PR) to progression. will be analyzed using competing risks tools (with death as a competing risk for progression), and will be done on the subsets of patients who have CR or CR/PR.

Countries

United States

Participant flow

Participants by arm

ArmCount
Ofatumumab
Ofatumumab alone for patients with MCL who are either not candidates for ASCT or aged 65 or older.
3
Ofatumumab + Bendamustine
Ofatumumab + Bendamustine for patients with MCL who are either not candidates for ASCT or aged 65 or older.
24
Ofatumumab Progressors
Ofatumumab alone participants who progressed and then received Ofatumumab + Bendamustine
3
Total30

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event010
Overall StudyPt trasnferred care010

Baseline characteristics

CharacteristicOfatumumabTotalOfatumumab ProgressorsOfatumumab + Bendamustine
Age, Continuous55 years73 years71 years73 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants2 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
3 Participants26 Participants3 Participants20 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants2 Participants0 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants4 Participants0 Participants4 Participants
Race (NIH/OMB)
White
3 Participants24 Participants3 Participants18 Participants
Region of Enrollment
United States
3 Participants30 Participants3 Participants24 Participants
Sex: Female, Male
Female
0 Participants5 Participants1 Participants4 Participants
Sex: Female, Male
Male
3 Participants25 Participants2 Participants20 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
1 / 313 / 242 / 3
other
Total, other adverse events
1 / 323 / 243 / 3
serious
Total, serious adverse events
0 / 37 / 241 / 3

Outcome results

Primary

Single Agent Efficacy (as Determined by Response Rate)

of the monoclonal antibody ofatumumab alone in low risk patients. Assessments prior to each cycle of immunotherapy or chemoimmunotherapy: (every 4 weeks)

Time frame: 2 years

Population: Dual therapy arm not assessed

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
OfatumumabSingle Agent Efficacy (as Determined by Response Rate)Complete Response1 Participants
OfatumumabSingle Agent Efficacy (as Determined by Response Rate)No Response2 Participants
Primary

the Efficacy (as Determined by Response Rate) of the Combination Ofatumumab + Bendamustine

in high risk patients. Assessments prior to each cycle of immunotherapy or chemoimmunotherapy: (every 4 weeks)

Time frame: 2 years

Population: Single therapy arm not assessed

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Ofatumumab + Bendamustinethe Efficacy (as Determined by Response Rate) of the Combination Ofatumumab + BendamustineComplete Response16 Participants
Ofatumumab + Bendamustinethe Efficacy (as Determined by Response Rate) of the Combination Ofatumumab + BendamustineNo Response8 Participants
Ofatumumab Progressorsthe Efficacy (as Determined by Response Rate) of the Combination Ofatumumab + BendamustineComplete Response2 Participants
Ofatumumab Progressorsthe Efficacy (as Determined by Response Rate) of the Combination Ofatumumab + BendamustineNo Response1 Participants
Secondary

Overall Survival (OS)

will be analyzed using Kaplan-Meier estimation, and logrank tests or Cox regression models when covariates are involved.

Time frame: Up to 6 years

Population: Participants in Ofatumab Progressors group were included in overall survival calculations for both ofatumumab single-agent and ofatumumab + bendamustine chemotherapy groups because this group consists of participants who were originally assigned to the single treatment arm who then progressed and then received dual therapy treatment.

ArmMeasureValue (MEDIAN)
OfatumumabOverall Survival (OS)2.2 years
Ofatumumab + BendamustineOverall Survival (OS)5.8 years
Secondary

Progression Free Survival (PFS)

will be analyzed using Kaplan-Meier estimation, and logrank tests or Cox regression models when covariates are involved.

Time frame: 2 years

Population: Participants in Ofatumab Progressors group were included in overall survival calculations for both ofatumumab single-agent and ofatumumab + bendamustine chemotherapy groups because this group consists of participants who were originally assigned to the single treatment arm who then progressed and then received dual therapy treatment.

ArmMeasureValue (MEDIAN)
OfatumumabProgression Free Survival (PFS)0.31 years
Ofatumumab + BendamustineProgression Free Survival (PFS)2.0 years
Secondary

Remission Duration

(calculated from confirmation of CR to progression)will be analyzed using competing risks tools (with death as a competing risk for progression), and will be done on the subsets of patients who have CR or CR/PR.

Time frame: Up to 6 years

Population: Only participants considered responders were assessed

ArmMeasureValue (MEDIAN)
OfatumumabRemission Duration3.36 years
Ofatumumab + BendamustineRemission Duration1.46 years
Ofatumumab ProgressorsRemission Duration2.45 years
Secondary

Response Duration

(calculated from confirmation of response (CR/PR) to progression. will be analyzed using competing risks tools (with death as a competing risk for progression), and will be done on the subsets of patients who have CR or CR/PR.

Time frame: Up to 6 years

Population: Only participants considered responders were assessed.

ArmMeasureValue (MEDIAN)
OfatumumabResponse Duration4.19 years
Ofatumumab + BendamustineResponse Duration1.67 years
Ofatumumab ProgressorsResponse Duration2.79 years

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026