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Epratuzumab and Rituximab in Treating Patients With Previously Untreated Follicular Non-Hodgkin Lymphoma

A Phase II Trial of Extended Induction Epratuzumab (Anti-CD22 Monoclonal Antibody) (CALGB IND #XXXXX) Plus Rituximab in Previously Untreated Follicular Non-Hodgkin's Lymphoma (NHL)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00553501
Enrollment
60
Registered
2007-11-05
Start date
2008-03-31
Completion date
2014-07-31
Last updated
2016-07-06

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

Conditions

Lymphoma

Keywords

stage II grade 1 follicular lymphoma, stage II grade 2 follicular lymphoma, stage II grade 3 follicular lymphoma, stage III grade 1 follicular lymphoma, stage III grade 2 follicular lymphoma, stage III grade 3 follicular lymphoma, stage IV grade 1 follicular lymphoma, stage IV grade 2 follicular lymphoma, stage IV grade 3 follicular lymphoma

Brief summary

RATIONALE: Monoclonal antibodies, such as epratuzumab and rituximab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help kill them or carry cancer-killing substances to them. Giving epratuzumab and rituximab together may be more effective in treating follicular non-Hodgkin lymphoma. PURPOSE: This phase II trial is studying how well giving epratuzumab together with rituximab works in treating patients with previously untreated follicular non-Hodgkin lymphoma.

Detailed description

OBJECTIVES: Primary * To determine the response rate (overall and complete) after extended induction therapy comprising epratuzumab and rituximab in patients with previously untreated CD20+ follicular non-Hodgkin lymphoma (NHL). * To determine the time to progression after extended induction therapy comprising epratuzumab and rituximab in patients with previously untreated CD20+ follicular NHL. Secondary * To determine the toxicity profile of epratuzumab and rituximab in patients with previously untreated CD20+ follicular NHL. * To establish whether the therapeutic effects of the combination of epratuzumab and rituximab are sufficiently promising to warrant evaluation in a subsequent randomized trial (in comparison to rituximab alone). * To determine the relationship between the change in fludeoxyglucose F 18 uptake early after epratuzumab and rituximab treatment with response rate and time to progression. OUTLINE: * Induction therapy (month 1): Patients receive epratuzumab IV over 5-30 minutes on days 1, 8, 15, and 22 and rituximab IV on days 3, 8, 15, and 22 in the absence of disease progression or unacceptable toxicity. * Extended induction therapy (months 3, 5, 7, and 9): Patients receive epratuzumab IV over 5-30 minutes followed by rituximab IV in weeks 12, 20, 28, and 36 in the absence of disease progression or unacceptable toxicity. Patients receive fludeoxyglucose F 18 (FDG) subcutaneously and undergo positron emission tomography at baseline and after induction therapy to assess the degree of FDG uptake. After completion of study treatment, patients are followed every 4 months for 2 years then every 6 months for up to 10 years.

Interventions

BIOLOGICALepratuzumab

Days 1, 8, 15, 22 and weeks 12, 20, 28, & 36: 360mg/sq m IV

BIOLOGICALrituximab

Day 3, 8, 15, 22 and weeks 12, 20, 28, & 36: 375mg/sq m IV

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Alliance for Clinical Trials in Oncology
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

DISEASE CHARACTERISTICS: * Histologically\* confirmed follicular non-Hodgkin lymphoma (NHL) * Previously untreated disease * WHO classification grade 1, 2, or 3a (\> 15 centroblasts per high power field with centrocytes present) that is stage III, IV, or bulky (i.e., single mass ≥ 7 cm in any unidimensional measurement) stage II disease NOTE: \*Bone marrow biopsies as the sole means of diagnosis are not acceptable, but they may be submitted in conjunction with nodal biopsies; fine-needle aspirates are not acceptable for diagnosis * Confirmed CD20 antigen expression by flow cytometry or immunohistochemistry * Measurable disease by physical examination or imaging studies * Any tumor mass \> 1 cm is acceptable * No nonmeasurable disease only, including any of the following: * Bone lesions * Ascites * Pleural/pericardial effusion * Lymphangitis cutis/pulmonis * Bone marrow (involvement by NHL should be noted) * No known CNS involvement by lymphoma * Required to participate in companion FDG-PET imaging study CALGB 580701 PATIENT CHARACTERISTICS: * ECOG performance status ≤ 2 * Absolute neutrophil count ≥ 1,000/μL * Platelet count ≥ 50,000/μL * Patients with HIV infection are eligible provided they meet the following criteria: * No evidence of coinfection with hepatitis B or C * CD4+ cell count ≥ 400/mm\^3 * No evidence of resistant strains of HIV * If not on anti-HIV therapy, HIV viral load \< 10,000 copies HIV RNA/mL * If on anti-HIV therapy, HIV viral load \< 50 copies HIV RNA/mL * No history of AIDS-defining conditions * Not pregnant or nursing * Fertile patients must use effective contraception during and for 3 months after completion of study therapy * No known Human Anti-Chimeric Antibody (HACA)-positivity PRIOR CONCURRENT THERAPY: * No prior therapy for NHL including chemotherapy, radiotherapy, or immunotherapy (e.g., monoclonal antibody-based therapy) * More than 2 weeks since prior corticosteroids except for maintenance therapy for non-malignant disease * No concurrent dexamethasone or other steroids as antiemetics except for the following circumstances: * Treatment of acute infusion reactions according to institutional procedures * No concurrent hormonal therapy except steroids for adrenal failure OR hormones for non-disease-related conditions (e.g., insulin for diabetes) * No other concurrent chemotherapeutic agents

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Overall Response12 monthsOverall response is defined as achievement of a complete response (CR) or partial response (PR) as defined by the Revised Response Criteria for Malignant Lymphoma. CR: complete disappearance of all detectable disease PR: \>=50% decrease in the sum of the product of diameters of indicator lesions

Secondary

MeasureTime frameDescription
Progression Free SurvivalDuration of study (up to 10 years)Progression free survival (PFS) was defined as the time from registration to progression or death of any cause. Progression free and alive patients were censored at the date of last follow-up. The median PFS with 95% CI was estimated using the Kaplan Meier method.

Countries

United States

Participant flow

Recruitment details

Between March 2008 and July 2009, 60 participants were recruited.

Pre-assignment details

One participant was deemed ineligible and excluded from all analyses per study design.

Participants by arm

ArmCount
Epratuzumab Plus Rituximab
Induction Therapy (Month 1): Epratuzumab 360 mg/m\^2 by IV days 1, 8, 15 & 22; Rituximab 375 mg/m\^2 by IV day 3, 8, 15 & 22 Extended Induction (Weeks 12, 20, 28 & 36) Epratuzumab 360 mg/m\^2 by IV weeks 12, 20, 28 & 36; Rituximab 375 mg/m\^2 by IV weeks 12, 20, 28 & 36
59
Total59

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event2
Overall StudyDeath1
Overall StudyProgression1

Baseline characteristics

CharacteristicEpratuzumab Plus Rituximab
Age, Continuous54 years
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
54 Participants
Region of Enrollment
United States
59 participants
Sex: Female, Male
Female
35 Participants
Sex: Female, Male
Male
24 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
58 / 59
serious
Total, serious adverse events
10 / 59

Outcome results

Primary

Number of Participants With Overall Response

Overall response is defined as achievement of a complete response (CR) or partial response (PR) as defined by the Revised Response Criteria for Malignant Lymphoma. CR: complete disappearance of all detectable disease PR: \>=50% decrease in the sum of the product of diameters of indicator lesions

Time frame: 12 months

ArmMeasureGroupValue (NUMBER)
Epratuzumab Plus RituximabNumber of Participants With Overall ResponseComplete Response25 participants
Epratuzumab Plus RituximabNumber of Participants With Overall ResponsePartial Response27 participants
Secondary

Progression Free Survival

Progression free survival (PFS) was defined as the time from registration to progression or death of any cause. Progression free and alive patients were censored at the date of last follow-up. The median PFS with 95% CI was estimated using the Kaplan Meier method.

Time frame: Duration of study (up to 10 years)

ArmMeasureValue (MEDIAN)
Epratuzumab Plus RituximabProgression Free Survival3.5 years
Post Hoc

3-Year Overall Survival

Percentage of participants who were alive at 3 years. The 3 year survival, with 95% confidence interval, was estimated using the Kaplan Meier method.

Time frame: 3 years

ArmMeasureValue (NUMBER)
Epratuzumab Plus Rituximab3-Year Overall Survival91 percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026