Clonal Evolution in Follicular Lymphoma

June 4, 2026 updated by: National Cancer Institute (NCI)

Prospective Study of Clonal Evolution in Follicular Lymphoma

Background:

Follicular lymphoma is a type of cancer of the lymph nodes. Lab studies are important for cancer research. They help scientists better understand differences in the cancer biology of different patients. Researchers want to collect serial samples over time from people with follicular lymphoma to help them design future treatments.

Objective:

To collect a variety of samples from people with follicular lymphoma to study how these diseases progress and respond to treatment.

Eligibility:

Adults at least 18 years old who have been diagnosed with, but have not yet had any treatment for, follicular lymphoma.

Design:

Participants will be screened with medical history and physical exam. They will answer questions about daily functioning. They will have blood and urine tests. They may have scans and have tissue samples taken.

Participants will be monitored about every 4 months for up to 2 years. They will repeat screening tests. They will have a cheek swab. A small brush will be rubbed against the inside of the cheek to wipe off some cells.

Participants will have imaging scans about every 8 months for up to 2 years.

Participants may have a bone marrow aspiration and biopsy. The hipbone will be numbed with a small needle.

A needle will be put into the hipbone, and about 2 tablespoons of bone marrow will be taken out through the needle.

Participants will continue being monitored every 6 months for up to 5 years, then 1 time a year.

Study Overview

Status

Recruiting

Conditions

Detailed Description

Background:

  • Follicular lymphoma (FL) is the second most common form of non-Hodgkin lymphoma and is incurable with standard first-line systemic therapy
  • The clinical course of FL varies from slowly progressive over many years to a more rapid disease course that requires therapy shortly after diagnosis
  • Early initiation of therapy does not improve survival, and asymptomatic patients are often managed with an initial period of watchful waiting
  • Clinical prognostic indices predict survival, but cannot predict outcome for individual patients; biologic-based classifiers (gene-expression profiling and somatic mutational analyses) are more robust than clinical indices, but require prospective clinical validation from the time of diagnosis in the modern treatment era
  • Paired samples linked to clinical information can lead to the discovery and/or validation of therapeutic targets for FL patients at the highest risk of early disease progression

Objective:

Characterize the molecular biology and clinical course of FL patients, and evaluate the time to treatment initiation for those patients who require first-line systemic therapy.

Eligibility:

  • Follicular lymphoma (grade 1-2, 3a) with no evidence of histological transformation
  • No previous cytotoxic, biologic or monoclonal antibody therapy for FL (previous radiation therapy permitted)
  • Age greater than or equal to 18 years
  • ECOG performance status of 0-2

Design:

  • Patients with FL who meet all eligibility criteria will enroll on the study for expert monitoring of their disease, improved risk-stratification, and donation of tissue and cellular products for research. Patients will be monitored prospectively until they require second-line systemic treatment or the patient decides to withdraw from the study; untreated patients will be followed with clinic visits every 4 months for the first 2 years. After 2 years, protocol-specified visits will be increased to every 6 months until 5 years. After 5 years, protocol-specified visits will be annually until disease progression requiring first-line therapy.
  • Patients without an indication for first-line systemic therapy at 2 years from initial study enrollment will be offered an optional biopsy of their lymph node and bone marrow.
  • During first-line systemic therapy, patients can continue being monitored on this study for post-therapy clonal evolution. Protocol-specified visits after therapy will be every 6 months until 3 years. After 3 years, protocol-specified visits will be annually until disease progression requiring second-line therapy.
  • Upon initiation of second-line therapy, if applicable, patients will move to survival follow-up only.

Study Type

Observational

Enrollment (Estimated)

200

Contacts and Locations

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

Study Contact

Study Contact Backup

Study Locations

    • Maryland
      • Bethesda, Maryland, United States, 20892
        • Recruiting
        • National Institutes of Health Clinical Center
        • Contact:
          • For more information at the NIH Clinical Center contact National Cancer Institute Referral Office
          • Phone Number: 888-624-1937

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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Up to 200 patients with pathologically-confirmed follicular lymphoma (grades 1-2, 3a) will be enrolled and screened for eligibility, and up to 80 eligible patients will receive active surveillance on this study for the purpose of expert monitoring of their disease, improved risk-stratification, and donation of tissue and cellular products for research.

Description

  • INCLUSION CRITERIA:
  • Histologically or cytologically confirmed follicular lymphoma (FL), grades 1-2, or 3a confirmed by the Laboratory of Pathology, NCI; patients who meet criteria for immediate initiation of systemic therapy are eligible
  • Adequate tissue available from original diagnostic biopsy.

NOTE: If biopsy was >12 months prior to enrollment OR adequate tissue is not available, tissue biopsy may be optionally repeated unless such a biopsy is considered unacceptable risk to the patient. Patients without adequate tissue are eligible at the discretion of the PI.

- Must have disease that is measurable or evaluable on either computed tomography (CT) scans or FDG-positron emission tomography (FDG-PET) scans

NOTE: Since patients with FL may have lesions that wax and wane on imaging, the requirement for disease being measurable or evaluable can come from imaging taken at any time at or after diagnosis, the most recent imaging prior to enrollment does not need

to show measurable or evaluable disease.

- Age greater than or equal to 18 years

NOTE: Patients with the pediatric-type follicular lymphoma are usually <18 years of age, and often have a very different clinical course than patients with the adult-type of FL. Due to this difference in biology, children are excluded from this study.

- ECOG performance status <2 (Karnofsky >60%)

EXCLUSION CRITERIA:

  • Previous history of diffuse large B-cell lymphoma or histologic transformation
  • Any prior systemic treatment for lymphoma including cytotoxic chemotherapy, biologic therapy, and monoclonal antibody therapy (radiotherapy permitted); patients who have received chemotherapy, biologic therapy, hormonal therapy, or monoclonal antibody for other malignancies are potentially eligible provided that all of the following are true: a) that malignancy was not lymphoma, b) systemic therapy ended at least 3 years prior to the diagnosis of FL, and c) there is no evidence of active malignancy other than FL

NOTE: Initiation of first-line systemic therapy is allowed while on this trial; concurrent participation in first-line treatment clinical trials will be permitted.

  • Patients who are HIV-positive
  • Any second malignancy that requires active systemic therapy
  • Any other (non-lymphoma) life-threatening disease
  • Patients unable to provide informed consent (surrogates will not be used)
  • Pregnant women are excluded from enrollment onto this study because the invasive procedures and/or sedation needed to perform them may cause unnecessary harm to the unborn fetus. In the event a woman becomes pregnant while on study, she will not be removed from the study; however, no follow-up invasive clinical or research procedures will be done that include unacceptable to risk to the patient and/or to the unborn fetus.

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
1
Patients with grades 1-2 or 3a follicular lymphoma (FL)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Characteristics of treatment received (e.g., type, response, etc.) and molecular biology (e.g., pathology, histologic transformation) will be described
Time Frame: ongoing
The types and frequency of each treatment will be reported.
ongoing
Time to initiation of first-line systemic treatment (TTT1), defined as the number of days from study enrollment until the date of initiation of first-line systemic treatment
Time Frame: 2 years
Number of days from study enrollment until the date of initiation of first-line systemic treatment will be reported.
2 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression-free survival
Time Frame: 2 years
The number of days from initial diagnosis until date of first objective progression or death from any cause
2 years
Progression-free survival after first-line systemic treatment, defined as the number of days from diagnosis to objective disease progression after first-line systemic treatment
Time Frame: 5 years
The number of days from diagnosis to objective disease progression after first-line systemic treatment or death from any cause
5 years
Progression-free survival from first active lymphoma treatment
Time Frame: 5 years
The number of days from initiation of first-line systemic treatment to objective disease progression or death from any cause
5 years
Time to initiation of second-line systemic treatment
Time Frame: 5 years
The number of days from study enrollment until the date of initiation of second-line systemic treatment
5 years
Overall survival (OS)
Time Frame: 10 years
The number of days from initial diagnosis until death from any cause
10 years

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Rahul Lakhotia, M.D., National Cancer Institute (NCI)

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.

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)

July 27, 2017

Primary Completion (Estimated)

January 1, 2029

Study Completion (Estimated)

January 1, 2029

Study Registration Dates

First Submitted

June 16, 2017

First Submitted That Met QC Criteria

June 16, 2017

First Posted (Actual)

June 19, 2017

Study Record Updates

Last Update Posted (Actual)

June 5, 2026

Last Update Submitted That Met QC Criteria

June 4, 2026

Last Verified

May 14, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

All IPD recorded in the medical record will be shared with intramural investigators upon request. @@@@@@All large scale genomic sequencing data will be shared with subscribers to dbGaP.

IPD Sharing Time Frame

Clinical data available during the study and indefinitely.@@@@@@Genomic data are available once genomic data are uploaded per protocol GDS plan for as long as database is active.

IPD Sharing Access Criteria

Genomic data are available once genomic data are uploaded per protocol GDS plan for as long as database is active.@@@@@@Genomic data are made available via dbGaP through requests to the data custodians.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

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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