A Pharmacokinetic Study of Subcutaneous and Intravenous Rituximab in Participants With Follicular Lymphoma

Summary

This 2 stage study will compare the pharmacokinetics and safety profile of subcutaneous and intravenous rituximab in participants with follicular lymphoma. In the first stage, participants who have achieved at least a partial response after induction treatment with intravenous rituximab will be randomized to one of 3 treatment cohorts, to receive rituximab 375 milligram per square meter (mg/m\^2) intravenously, 375 mg/m\^2 subcutaneously or 625 mg/m\^2 subcutaneously, and pharmacokinetics evaluated on an ongoing basis. Upon selection of the subcutaneous dose (800 mg/m\^2) which results in rituximab trough plasma concentration (C trough) values comparable to those achieved with the intravenous formulation, participants in the second stage of the study will be randomized to receive either the subcutaneous or intravenous formulation to demonstrate comparability of the C trough levels with both routes of administration. Maintenance therapy will continue every 2 or 3 months with the subcutaneous formulation.

Timeline

Start

2009-09

Primary completion

2013-07

Completion

2013-07

Outcome

Met primary endpoint

paper Noninferiority (ie, meeting the prespecified 90% CI lower limit of 0.8) was then confirmed in stage 2 PMID 24821885 ↗

Publications

• Salar A, Avivi I, Bittner B, Bouabdallah R, Brewster M, Catalani O, Follows G, Haynes A, Hourcade-Potelleret F, Janikova A, Larouche JF, McIntyre C, Pedersen M, Pereira J, Sayyed P, Shpilberg O, Tumyan G. Comparison of subcutaneous versus intravenous administration of rituximab as maintenance treatment for follicular lymphoma: results from a two-stage, phase IB study. J Clin Oncol. 2014 Jun 10;32(17):1782-91. doi: 10.1200/JCO.2013.52.2631. Epub 2014 May 12.
• Mao CP, Brovarney MR, Dabbagh K, Birnbock HF, Richter WF, Del Nagro CJ. Subcutaneous versus intravenous administration of rituximab: pharmacokinetics, CD20 target coverage and B-cell depletion in cynomolgus monkeys. PLoS One. 2013 Nov 12;8(11):e80533. doi: 10.1371/journal.pone.0080533. eCollection 2013.

Drugs

Indications