Phase II Randomized Trial Comparing GA101 and Rituximab in Untreated Low Tumor Burden Indolent Non-Hodgkin's Lymphoma

Summary

Patients with previously untreated low tumor burden indolent Non-Hodgkin's Lymphoma (NHL) will receive either rituximab or GA101 weekly for 4 weeks followed by re-staging to determine response. Rituximab, an anti-CD20 chimeric antibody, was approved by the United States Food and Drug Administration in 1998 for the treatment of patients with relapsed low-grade B-cell lymphomas. Clinically, four weekly doses of rituximab have proven to be well tolerated and effective in previously untreated as well as relapsed patients with low-grade lymphoma. GA101 is an anti-CD20 humanized and glyco-engineered monoclonal antibody. GA101 has been shown to have increased antibody-dependent cellular cytotoxicity (ADCC) and direct cell-death induction compared to Rituximab. It is possible that GA101 may have greater efficacy than rituximab. PrE0401 Sub-Study Evaluation of Corrected QT (QTc) Interval and Pharmacokinetic Parameters in Patients Participating in GA101 (Obinutuzumab) Approximately twenty-five patients randomized to GA101 may participate in the sub-study. Electrocardiograms and blood samples will be obtained.

Timeline

Start

2013-12

Primary completion

2016-04

Completion

2016-08

Outcome

Outcome not reported

Stopped (Enrollment): “Closed due prolonged enrollment timelines”

Publications

• Background Hainsworth JD, Litchy S, Burris HA 3rd, Scullin DC Jr, Corso SW, Yardley DA, Morrissey L, Greco FA. Rituximab as first-line and maintenance therapy for patients with indolent non-hodgkin's lymphoma. J Clin Oncol. 2002 Oct 15;20(20):4261-7. doi: 10.1200/JCO.2002.08.674.
• Background Beers SA, Chan CH, French RR, Cragg MS, Glennie MJ. CD20 as a target for therapeutic type I and II monoclonal antibodies. Semin Hematol. 2010 Apr;47(2):107-14. doi: 10.1053/j.seminhematol.2010.01.001.
• Background Mossner E, Brunker P, Moser S, Puntener U, Schmidt C, Herter S, Grau R, Gerdes C, Nopora A, van Puijenbroek E, Ferrara C, Sondermann P, Jager C, Strein P, Fertig G, Friess T, Schull C, Bauer S, Dal Porto J, Del Nagro C, Dabbagh K, Dyer MJ, Poppema S, Klein C, Umana P. Increasing the efficacy of CD20 antibody therapy through the engineering of a new type II anti-CD20 antibody with enhanced direct and immune effector cell-mediated B-cell cytotoxicity. Blood. 2010 Jun 3;115(22):4393-402. doi: 10.1182/blood-2009-06-225979. Epub 2010 Mar 1.
• Background Salles GA, et al. Efficacy and Safety of Obinutuzumab (GA101) Monotherapy in Relapsed/Refractory Indolent Non-Hodgkin's Lymphoma: Results from a Phase I/II Study (BO20999) American Society of Hematology Annual meeting 2011 Abstract 268.
• Background Sehn LH, Goy A, Offner FC, Martinelli G, Caballero MD, Gadeberg O, Baetz T, Zelenetz AD, Gaidano G, Fayad LE, Buckstein R, Friedberg JW, Crump M, Jaksic B, Zinzani PL, Padmanabhan Iyer S, Sahin D, Chai A, Fingerle-Rowson G, Press OW. Randomized Phase II Trial Comparing Obinutuzumab (GA101) With Rituximab in Patients With Relapsed CD20+ Indolent B-Cell Non-Hodgkin Lymphoma: Final Analysis of the GAUSS Study. J Clin Oncol. 2015 Oct 20;33(30):3467-74. doi: 10.1200/JCO.2014.59.2139. Epub 2015 Aug 17.

Drugs

Indications