Follow-up results of a phase II study of ibritumomab tiuxetan radioimmunotherapy in patients with relapsed or refractory low-grade, follicular, or transformed B-cell non-Hodgkin's lymphoma and mild thrombocytopenia

Russell Schilder, Arturo Molina, Nancy Bartlett, Thomas Witzig, Leo Gordon, James Murray, Stewart Spies, Hua Wang, Gregory Wiseman, Christine White

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

This report presents updated time-to-event variables from a multicenter phase II trial of reduced-dose 90Y Ibritumomab tiuxetan in patients with relapsed or refractory low-grade, follicular, or transformed B-cell non-Hodgkin's lymphoma (NHL) and mild thrombocytopenia (platelet counts of 100 to 149 × 109 platelets/L). Patients received a single course of Ibritumomab tiuxetan radioimmunotherapy, with 90Y ibritumomab tiuxetan administered at 0.3 mCi/kg (compared to a standard dose of 0.4 mCi/kg). In 30 patients, the overall response rate was 83%, with complete responses (confirmed [CR] and unconfirmed [CRu]) of 47%. Median follow-up time is currently 36.5 months (range: 7.5-54.9 months). Median duration of response was 11.5 months (range: 1.0-53.9 months), median time to progression was 9.4 months (range: 1.7-54.8+ months), and median time to next lymphoma therapy was 14.6 months (range: 2.3-54.9+ months). Median overall survival time has not yet been reached. Long-term responses, defined as time to progression of 12 months or greater, have been seen in 14 of 30 patients (47%) overall, and 12 of 14 CR/CRu patients (86%). Toxicities were primarily hematologic and reversible. No additional long-term adverse events have been observed in the follow-up period, and treatment did not preclude subsequent lymphoma therapies.

Original languageEnglish
Pages (from-to)478-481
Number of pages4
JournalCancer Biotherapy and Radiopharmaceuticals
Volume19
Issue number4
DOIs
StatePublished - 2004

Keywords

  • Ibritumomab tiuxetan
  • Non-Hodgkin's lymphoma
  • Radioimmunotherapy
  • Therapy
  • Thrombocytopenia

Fingerprint Dive into the research topics of 'Follow-up results of a phase II study of ibritumomab tiuxetan radioimmunotherapy in patients with relapsed or refractory low-grade, follicular, or transformed B-cell non-Hodgkin's lymphoma and mild thrombocytopenia'. Together they form a unique fingerprint.

Cite this