Safety and efficacy of obinutuzumab alone or with chemotherapy in previously untreated or relapsed/refractory chronic lymphocytic leukaemia patients: Final analysis of the Phase IIIb GREEN study

Other authors

Institut Català de la Salut

[Stilgenbauer S] Department of Internal Medicine III, Ulm University, Ulm and Innere Medizin I, Universitätsklinikum des Saarlandes, Homburg, Germany. [Bosch F] Servei d’Hematologia, Vall d'Hebron Hospital Universitari, Barcelona, Spain. [Ilhan O] Internal Medical Sciences Departments, Ankara University School of Medicine, Ankara, Turkey. [Kisro J] Onkologische Schwerpunktpraxis Lübeck, Lübeck, Germany. [Mahé B] Clinical Hematology, CHU Nantes Hôtel-Dieu, Nantes, France. [Mikuskova E] Department of Hemato-oncology II, National Cancer Institute, Bratislava, Slovakia Blokhin

Vall d'Hebron Barcelona Hospital Campus

Publication date

2021-06-23T11:14:36Z

2021-06-23T11:14:36Z

2021-04



Abstract

Obinutuzumab; Leucèmia limfocítica crònica; Malaltia residual mínima


Obinutuzumab; Leucemia linfocítica crónica; Enfermedad residual mínima


Obinutuzumab; Chronic lymphocytic leukaemia; Minimal residual disease


The manageable toxicity profile of obinutuzumab (GA101; G) alone or with chemotherapy in first-line (1L; fit and non-fit) and relapsed/refractory (R/R) patients with chronic lymphocytic leukaemia (CLL) was established in the primary analysis of the Phase IIIb GREEN trial (Clinicaltrials.gov: NCT01905943). The final analysis (cut-off, 31 January 2019) is reported here. Patients received G (1000 mg) alone (G-mono; fit and non-fit patients) or with chemotherapy [fludarabine and cyclophosphamide (FC; fit patients); chlorambucil (non-fit patients); bendamustine (any patient)]. Study endpoints were safety (primary) and efficacy (secondary). Subgroup analyses were performed on prognostic biomarkers in 1L CLL. Overall, 630 patients received 1L and 341 received R/R CLL treatment. At the final analysis, no new safety signals were observed [Grade ≥ 3 adverse events (AEs): 1L 82·7%, R/R 84·5%; serious AEs: 1L 58·1%, R/R 62·5%]. Neutropenia (1L 50·5%, R/R 53·4%) and thrombocytopenia (1L 14·6%, R/R 19·1%) were the most common Grade 3–5 AEs. G-mono-, G-bendamustine and G-FC-treated patients with unmutated immunoglobulin heavy chain trended towards shorter progression-free survival. Achievement of minimal residual disease negativity was greatest in 1L patients treated with G-FC. In this final analysis of the GREEN trial, the safety profile of G was consistent with current risk management strategies. Biomarker analyses supported efficacy in the specific subgroups.


F. Hoffmann-La Roche Ltd.

Document Type

Article


Published version

Language

English

Publisher

Wiley

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British Journal of Haematology;193(2)

https://onlinelibrary.wiley.com/doi/10.1111/bjh.17326

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Attribution-NonCommercial-NoDerivatives 4.0 International

http://creativecommons.org/licenses/by-nc-nd/4.0/

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