Study Stopped
drug supply issues
Rituximab With or Without Yttrium Y-90 Ibritumomab Tiuxetan in Treating Patients With Untreated Follicular Lymphoma
The Asymptomatic Follicular Lymphoma (AFL) Trial: A Phase III Study of Single-Agent Rituximab Immunotherapy Versus Zevalin Radioimmunotherapy for Patients With New, Untreated Follicular Lymphoma Who Are Candidates for Observation
3 other identifiers
interventional
20
1 country
1
Brief Summary
This phase III trial studies rituximab and yttrium Y-90 ibritumomab tiuxetan to see how well they work compared to rituximab alone in treating patients with untreated follicular lymphoma. Immunotherapy with monoclonal antibodies, such as nivolumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Radioactive substances linked to monoclonal antibodies can bind to cancer cells and give off radiation which may help kill cancer cells. It is not yet known whether rituximab works better with or without yttrium Y-90 ibritumomab tiuxetan in treating follicular lymphoma.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started Feb 2015
Longer than P75 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 15, 2014
CompletedFirst Posted
Study publicly available on registry
December 19, 2014
CompletedStudy Start
First participant enrolled
February 11, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 28, 2021
CompletedResults Posted
Study results publicly available
July 18, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
November 9, 2023
CompletedJuly 9, 2025
November 1, 2023
6.1 years
December 15, 2014
May 25, 2023
June 19, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Complete Response (CR) Rate at the 6-month Disease Assessment
Will be compared between the two arms. The percentage of patients in each response category (e.g., CR, partial remission, stable disease, relapse/progressive disease) will also be tabulated by arm. The proportion of patients who have a CR at 6 months will be evaluated and compared between the two treatment regimens using a two-sided alpha=0.05 continuity corrected Cochran-Mantel-Haenszel test with stratification factors.
6 months
Secondary Outcomes (4)
Progression-free Survival (PFS)
Time from registration to the earliest date documentation of disease progression or death due to any cause, assessed up to 5 years
Time to Any Therapy (TTNT)
Time from registration to the date of initiation of any treatment for follicular lymphoma, assessed up to 5 years
Time to Chemotherapy (TTC)
Time from registration to the date of initiation of chemotherapy for follicular lymphoma, assessed up to 5 years
Incidence of Adverse Events
Up to 5 years
Other Outcomes (9)
Incidence of Exon 2 bcl2 Mutations
Baseline
Change in Quantification of Tissue Tregs and Tissue Monocytes on Study Tumor Biopsies
Baseline to 6 months
Change in Serum Cytokines
Baseline to 6 months
- +6 more other outcomes
Study Arms (2)
Arm A (rituximab)
ACTIVE COMPARATORPatients receive rituximab IV on days 1, 8, 15, and 22.
Arm B (rituximab, yttrium Y-90 ibritumomab tiuxetan)
EXPERIMENTALPatients receive rituximab IV on days 1 and 8 and yttrium Y-90 ibritumomab tiuxetan over 10 minutes on day 8.
Interventions
Ancillary studies
Given IV
Given IV
Eligibility Criteria
You may qualify if:
- Histological confirmation of follicular lymphoma grades I, II diagnosed within 12 months (365 days) prior to registration; NOTE: the day of biopsy should be used as day 1 of diagnosis for this calculation
- Stage I, II, III, or IV disease; NOTE: stage I disease are eligible only if the disease is not amenable to external beam radiation therapy
- No indication for chemotherapy; candidate for observation
- Measurable disease by tumor imaging with at least one lesion \>= 1.5 cm in at least one dimension
- Previously untreated; NOTE: this includes any chemotherapy or immunotherapy or RIT; patients who received corticosteroids for diseases other than lymphoma are eligible as long as prednisone dose is =\< 10 mg/day
- Low tumor burden as defined by Groupe d'Etudes des Lymphomes Folliculaires (GELF) criteria (2):
- No tumor mass (nodal or extranodal) \>= 7 cm in one dimension on computed tomography (CT)
- Fewer than 3 (2 or less) nodal masses \> 3 cm
- No systemic or B symptoms
- No splenomegaly greater than 16 cm by CT scan
- No risk of organ compression - ureteral, orbital, neurological, gastrointestinal
- No leukemic phase (\> 5.0 x 10\^9/L circulating FL cells in the blood as detected by complete blood count \[CBC\] with differential and smear)
- No cytopenias - absolute neutrophil count (ANC) \< 1000 or platelets \< 100,000
- Meet standard criteria for RIT:
- \< 25% marrow involvement with FL
- +16 more criteria
You may not qualify if:
- Any of the following because this study involves an agent whose genotoxic, mutagenic and teratogenic effects on the developing fetus and newborn are unknown:
- Pregnant women
- Nursing women
- Men or women of childbearing potential who are unwilling to employ adequate contraception for at least three months after completing study treatment
- Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens
- Patients known to be human immunodeficiency virus (HIV) positive and currently receiving antiretroviral therapy
- NOTE: These patients are excluded because it is unknown what effects prolonged B-cell depletion will have on these patient's immune system
- Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, uncontrolled cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
- Receiving any other investigational agent that would be considered as a treatment for the lymphoma
- Active other malignancy requiring treatment that would interfere with the assessments of response of the lymphoma to protocol treatment and would interfere with follow-up assessments through year 5
- Presence of central nervous system (CNS) lymphoma
- Known to have lymphoma related to HIV or acquired immune deficiency syndrome (AIDS)
- Abnormal renal function (serum creatinine \> 2 x ULN)
- Received prior external beam radiation therapy for another reason to \> 25% of active bone marrow
- Serious non-malignant disease such as active infection or other condition which in the opinion of the investigator would compromise other protocol objectives
- +12 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Mayo Cliniclead
Study Sites (1)
Mayo Clinic in Rochester
Rochester, Minnesota, 55905, United States
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Dr. Thomas E Witzig
- Organization
- Mayo Clinic
Study Officials
- PRINCIPAL INVESTIGATOR
Thomas E. Witzig, M.D.
Mayo Clinic in Rochester
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 15, 2014
First Posted
December 19, 2014
Study Start
February 11, 2015
Primary Completion
February 28, 2021
Study Completion
November 9, 2023
Last Updated
July 9, 2025
Results First Posted
July 18, 2023
Record last verified: 2023-11