DNA Analysis in Influencing Response to Rituximab in Samples From Patients With Follicular Lymphoma Treated on ECOG-E4402

NCT ID: NCT01406782

Last Updated: 2017-05-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-12-13

Study Completion Date

2012-01-13

Brief Summary

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RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how well patients will respond to treatment.

PURPOSE: This research study is studying DNA isolated from blood samples to see how well it influences response to rituximab in patients with follicular lymphoma treated on clinical trial ECOG-E4402.

Detailed Description

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OBJECTIVES:

* To test the influence of killer immunoglobulin-like receptor (KIR) and human lymphocyte antigen (HLA) genotype on response to anti-CD20 antibody lymphoma immunotherapy.

OUTLINE: DNA samples are analyzed for killer immunoglobulin-like receptor (KIR) and human lymphocyte antigen (HLA) genotyping with sequence-specific primers (SSP) by real-time PCR. KIR and HLA typing are analyzed according to KIR-HLA matched vs mismatched, KIR B haplotype content, and the number of inhibitory KIR-HLA pairs. Results are then correlated to each patient's overall response and duration of response to rituximab.

Conditions

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Lymphoma

Study Design

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Observational Model Type

OTHER

Study Time Perspective

RETROSPECTIVE

Interventions

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rituximab

Intervention Type BIOLOGICAL

DNA analysis

Intervention Type GENETIC

gene expression analysis

Intervention Type GENETIC

polymerase chain reaction

Intervention Type GENETIC

laboratory biomarker analysis

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

DISEASE CHARACTERISTICS:

* Patients diagnosed with follicular lymphoma enrolled on ECOG-E4402

* Treated with single-agent rituximab; the trial compared two different rituximab-dosing strategies - maintenance vs retreatment as needed
* Available germline DNA samples isolated from peripheral blood as well as clinical evaluation of disease status prior to and at initial response to the therapy

PATIENT CHARACTERISTICS:

* Not specified

PRIOR CONCURRENT THERAPY:

* See Disease Characteristics
Minimum Eligible Age

18 Years

Maximum Eligible Age

120 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

Eastern Cooperative Oncology Group

NETWORK

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Erik Ranheim, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

University of Wisconsin, Madison

Other Identifiers

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ECOG-E4402T3

Identifier Type: -

Identifier Source: secondary_id

CDR0000706811

Identifier Type: -

Identifier Source: org_study_id

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