~4 spots leftby Apr 2026

S0433 Iodine I 131 Tositumomab, Rituximab, and Combination Chemotherapy in Treating Older Patients With Stage II, Stage III, or Stage IV Non-Hodgkin's Lymphoma

Recruiting in Palo Alto (17 mi)
+77 other locations
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 2
Waitlist Available
Sponsor: SWOG Cancer Research Network
No Placebo Group
Prior Safety Data
Breakthrough Therapy

Trial Summary

What is the purpose of this trial?

RATIONALE: Radiolabeled monoclonal antibodies, such as iodine I 131 tositumomab, can find cancer cells and carry cancer-killing substances to them without harming normal cells. Monoclonal antibodies, such as 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. Drugs used in chemotherapy, such as cyclophosphamide, doxorubicin, vincristine, and prednisone, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving a radiolabeled monoclonal antibody together with rituximab and combination chemotherapy may kill more cancer cells. PURPOSE: This phase II trial is studying how well giving iodine I 131 tositumomab together with rituximab and combination chemotherapy works in treating older patients with stage II, stage III, or stage IV B-cell non-Hodgkin's lymphoma.

Research Team

JW

Jonathan W. Friedberg, MD

Principal Investigator

James P. Wilmot Cancer Center

RI

Richard I. Fisher, MD

Principal Investigator

James P. Wilmot Cancer Center

Eligibility Criteria

Inclusion Criteria

Bulky stage II disease
Stage III disease
Stage IV disease
See 7 more

Treatment Details

Interventions

  • Cyclophosphamide (Alkylating agents)
  • Doxorubicin Hydrochloride (Antitumor Antibiotic)
  • Iodine I 131 Tositumomab (Radiopharmaceuticals)
  • Prednisone (Corticosteroid)
  • Rituximab (Monoclonal Antibodies)
  • Vincristine Sulfate (Vinca Alkaloids)
Participant Groups
1Treatment groups
Experimental Treatment
Group I: R-CHOP x 8 with I-131 TositumomabExperimental Treatment6 Interventions
Cyclophosphamide 750 mg/m2 IV Day 1 Doxorubicin 50 mg/m2 IV Day 1 Vincristine 1.4 mg/m2 IV Day 1 Prednisone 100 mg PO Days 1-5 Rituximab 375 mg/m2 IV Day 1 Q 21 Days x 6 cycles Unlabeled Anti-B1 Antibody 450 mg IV Day 170 Dosimetric dose 35 mg IV Day 170 Unlabeled Anti-B1 Antibody 450 mg IV Day 177 Therapeutic dose 35 mg IV Day 177

Cyclophosphamide is already approved in Canada, Japan for the following indications:

🇨🇦
Approved in Canada as Neosar for:
  • Breast cancer
  • Ovarian cancer
  • Multiple myeloma
  • Leukemia
  • Lymphoma
  • Rheumatoid arthritis
🇯🇵
Approved in Japan as Endoxan for:
  • Breast cancer
  • Ovarian cancer
  • Multiple myeloma
  • Leukemia
  • Lymphoma

Find a Clinic Near You

Who Is Running the Clinical Trial?

SWOG Cancer Research Network

Lead Sponsor

Trials
403
Recruited
267,000+

Dr. Charles D. Blanke

SWOG Cancer Research Network

Chief Executive Officer since 2012

MD from Oregon Health & Science University

Dr. Dawn Hershman profile image

Dr. Dawn Hershman

SWOG Cancer Research Network

Chief Medical Officer since 2020

MD from Columbia University

Southwest Oncology Group

Lead Sponsor

Trials
389
Recruited
260,000+
Dr. Lyudmila Bazhenova profile image

Dr. Lyudmila Bazhenova

Southwest Oncology Group

Chief Medical Officer since 2021

MD from University of California, San Diego

Dr. Richard Schilsky profile image

Dr. Richard Schilsky

Southwest Oncology Group

Chief Executive Officer since 2013

MD from University of California, San Diego

National Cancer Institute (NCI)

Collaborator

Trials
14,080
Recruited
41,180,000+
Dr. Douglas R. Lowy profile image

Dr. Douglas R. Lowy

National Cancer Institute (NCI)

Chief Executive Officer since 2023

MD from New York University School of Medicine

Dr. Monica Bertagnolli profile image

Dr. Monica Bertagnolli

National Cancer Institute (NCI)

Chief Medical Officer since 2022

MD from Harvard Medical School