Radiation Therapy and Rituximab in Treating Patients With Stage I-II Grade 1 or Grade 2 Follicular Lymphoma

February 25, 2026 updated by: M.D. Anderson Cancer Center

Randomized Trial of Radiation Therapy With and Without Rituximab for Patients With Stage I II Follicular Lymphoma Grade I/II

This randomized phase I/II trial studies radiation therapy and rituximab in treating patients with stage I-II grade 1 or grade 2 follicular lymphoma. Radiation therapy uses high energy x-rays to kill cancer cells. Immunotherapy with monoclonal antibodies, such as rituximab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving radiation therapy with rituximab may kill more cancer cells.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

PRIMARY OBJECTIVE:

I. To determine if rituximab concurrently with radiation followed by maintenance rituximab offers a superior benefit over radiation alone. Specifically looking at the progression free survival.

OUTLINE: Patients are randomized to 1 of 2 treatment arms.

ARM I: Patients undergo radiation therapy five days a week for 2.5 weeks (12 treatments) and receive rituximab intravenously (IV) over 4-6 hours weekly with the start of radiation for 4 weeks and then every 2 months for up to 4 additional doses in the absence of disease progression or unacceptable toxicity.

ARM II: Patients undergo radiation therapy five days a week for 2.5 weeks and then undergo observation.

After completion of study treatment, patients are followed up at 3 and 6 months, every 6 months for 2 years, yearly for 3 years, and then every 2 years for 10 years.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
81

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Texas
      • Houston, Texas, United States, 77030
        • M D Anderson Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Newly diagnosed patients with stage I and II follicular lymphoma, pathologically confirmed at MD Anderson Cancer Center (MDACC) to be grade 1 or 2
  • Prophylactic use of lamivudine in patients that have antibody positive (+), but no active infection will be up to the treating physician
  • Absolute neutrophil count (ANC) >= 1000/mm^3; this value must be obtained within four weeks before protocol entry
  • Platelets >= 80,000/mm^3; this value must be obtained within four weeks before protocol entry
  • Hemoglobin >= 8 g/dL; this value must be obtained within four weeks before protocol entry
  • Bilirubin =< 1.5 times the upper limit of normal (ULN); this value must be obtained within four weeks before protocol entry
  • Alanine aminotransferase (ALT) =< 2 times the ULN or aspartate aminotransferase (AST) =< 2 times the ULN; these values must be obtained within four weeks before protocol entry
  • Performance status >= 2
  • Patients are required to have adequate renal function as indicated by a serum creatinine =< 2.5 mg/dL; this value must be obtained within four weeks before protocol entry
  • No prior known allergic reaction to monoclonal antibodies
  • Male patients must agree to use a barrier method of contraception or agree to abstain from heterosexual activity for the duration of the study
  • Female patients must be willing to use two adequate barrier methods of contraception to prevent pregnancy or agree to abstain from heterosexual activity throughout the study or be post menopausal (free from menses > two years or surgically sterilized)
  • Female patients of childbearing potential must have a negative serum pregnancy test (beta human chorionic gonadotropin [B HCG]) within 72 hours of receiving the first dose of rituximab
  • Patients must have the ability able to give informed consent

Exclusion Criteria:

  • Patients with active hepatitis B and/or hepatitis C infection
  • Patients with known human immunodeficiency virus (HIV) infection
  • Patients with active infections requiring specific anti-infective therapy are not eligible until all signs of infections are resolved
  • Patients who had previous radiation dose to the site of the current primary disease, which would lead to violation of known radiation tolerance limit of that particular site if treated again
  • Patients with pre-existing cardiovascular disease requiring ongoing treatment; this includes: congestive heart failure III/IV as defined by New York Heart Association (NYHA); uncontrolled cardiac arrhythmia; unstable angina pectoris; and recent myocardial infarction (MI) (within 6 months)
  • Patients who are pregnant or breast-feeding
  • Patient with concurrent use of complementary or alternative medicines
  • Patients with psychiatric illness and/or social situations that would limit compliance with the study medication and requirements

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Arm I (radiation therapy and rituximab)
Patients undergo radiation therapy five days a week for 2.5 weeks (12 treatments) and receive rituximab IV over 4-6 hours weekly with the start of radiation for 4 weeks and then every 2 months for up to 4 additional doses in the absence of disease progression or unacceptable toxicity.
Biological: Rituximab
Given IV
Other Names:
  • Rituxan
  • MabThera
  • ABP 798
  • BI 695500
  • C2B8 Monoclonal Antibody
  • Chimeric Anti-CD20 Antibody
  • CT-P10
  • IDEC-102
  • IDEC-C2B8
  • IDEC-C2B8 Monoclonal Antibody
  • Monoclonal Antibody IDEC-C2B8
  • PF-05280586
  • Riabni
  • Rituximab ABBS
  • Rituximab ARRX
  • Rituximab Biosimilar ABP 798
  • Rituximab Biosimilar BI 695500
  • Rituximab Biosimilar CT-P10
  • Rituximab Biosimilar GB241
  • Rituximab Biosimilar IBI301
  • Rituximab Biosimilar JHL1101
  • Rituximab Biosimilar PF-05280586
  • Rituximab Biosimilar RTXM83
  • Rituximab Biosimilar SAIT101
  • Rituximab Biosimilar SIBP-02
  • rituximab biosimilar TQB2303
  • Rituximab PVVR
  • rituximab-abbs
  • Rituximab-arrx
  • Rituximab-pvvr
  • RTXM83
  • Ruxience
  • Truxima
Radiation: Radiation Therapy
Undergo radiation therapy
Other Names:
  • Cancer Radiotherapy
  • ENERGY_TYPE
  • Irradiate
  • Irradiated
  • Irradiation
  • Radiation
  • Radiation Therapy, NOS
  • Radiotherapeutics
  • Radiotherapy
  • RT
  • Therapy, Radiation
Experimental: Arm II (radiation therapy and observation)
Patients undergo radiation therapy five days a week for 2.5 weeks and then undergo observation.
Other: Clinical Observation
Undergo observation
Other Names:
  • observation
Radiation: Radiation Therapy
Undergo radiation therapy
Other Names:
  • Cancer Radiotherapy
  • ENERGY_TYPE
  • Irradiate
  • Irradiated
  • Irradiation
  • Radiation
  • Radiation Therapy, NOS
  • Radiotherapeutics
  • Radiotherapy
  • RT
  • Therapy, Radiation

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Proportion of patients that remain progression free, defined as progressive disease or death due to disease
Time Frame: Up to 15 years
The student t-test or the Wilcoxon rank sum test will be used to compare continuous variables between two different patient groups. The chi-square test or the Fisher's exact test will then be applied to assess the association between two categorical variables. Logistic regression will be utilized to assess the effect of patient prognostic factors on the response rate. Kaplan-Meier survival curves will also be constructed.
Up to 15 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Overall survival
Time Frame: Up to 15 years
Estimated using the Kaplan-Meier method. The log-rank test will be performed to test the difference in time-to-event distributions between patient groups. The Cox proportional hazards model will be utilized to include multiple covariates in the time-to-event analysis.
Up to 15 years
Progression free survival rate
Time Frame: Up to 15 years
Estimated using the Kaplan-Meier method. The log-rank test will be performed to test the difference in time-to-event distributions between patient groups. The Cox proportional hazards model will be utilized to include multiple covariates in the time-to-event analysis.
Up to 15 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
M.D. Anderson Cancer Center

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Bouthaina S Dabaja, M.D. Anderson Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 20, 2013

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 20, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 20, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 10, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 14, 2011

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 17, 2011

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 27, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 25, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2011-0283 (Other Identifier: M D Anderson Cancer Center)
  • NCI-2012-00734 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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