Zanubrutinib Plus Obinutuzumab Versus Obinutuzumab Monotherapy in Patients with Relapsed or Refractory Follicular Lymphoma: Final Analysis of the Phase 2 ROSEWOOD Study
In the primary analysis of the phase 2 ROSEWOOD trial, combination zanubrutinib and obinutuzumab (ZO) demonstrated superior overall response rate (ORR) and progression-free survival (PFS) compared with obinutuzumab monotherapy (O) in patients with relapsed/refractory follicular lymphoma (R/R FL) who had received ≥ 2 prior lines of therapy. To report the final analysis of ROSEWOOD with a median follow-up of 34.6 months. Patients with R/R FL were randomised 2:1 to receive ZO or O. Efficacy endpoints included ORR, duration of response (DoR), PFS, overall survival (OS) and time to next anticancer therapy or crossover (TTNT); safety was also assessed. ZO maintained superior ORR versus O (70.3% versus 44.4%; risk difference, 25.5% [95% CI: 11.8–39.3%; P = 0.0003]) and higher complete response rate (42.1% versus 19.4%). Efficacy findings across patient subgroups were generally consistent with the overall population. Median DoR and PFS were longer with ZO than O (DoR, 32.9 versus 14.0 months; PFS, 22.1 versus 10.3 months), as was median TTNT (51.7 versus 12.1 months). The OS comparison did not reach statistical significance (hazard ratio, 0.66; 95% CI, 0.43–1.04%). The safety profile of ZO was manageable and consistent with known effects of both drugs, with no new safety signals. With nearly 3 years of follow-up, these updated results support a favourable risk-benefit profile of ZO in heavily pretreated patients with R/R FL. ClinicalTrials.gov identifier: NCT03332017.
Authors
- Rebecca L. Auer (ORCID: https://orcid.org/0000-0001-7169-7659)
- Sam Yuen
- Marco Brociner
- Peter S. Ganly (ORCID: https://orcid.org/0000-0003-0335-2063)
- Roderick J. Johnson (ORCID: https://orcid.org/0000-0002-0441-8688)
- Jamie H. Hirata (ORCID: https://orcid.org/0009-0002-7373-362X)
- Krimo K. Bouabdallah (ORCID: https://orcid.org/0000-0002-4425-7823)
- Fontanet Delices Bijou (ORCID: https://orcid.org/0000-0001-6768-7175)
- Judith Trotman (ORCID: https://orcid.org/0000-0001-8009-4593)
- Christopher R. Flowers (ORCID: https://orcid.org/0000-0002-9524-3990)
- Marek Trněný (ORCID: https://orcid.org/0000-0002-6952-6073)
- Pier Luigi Zinzani (ORCID: https://orcid.org/0000-0002-2112-2651)
- David Šálek
- Sha Huang (ORCID: https://orcid.org/0000-0002-0343-3210)
- Mariano Provencio Pulla
- Ana C. de Oliveira
- Alejandro Martín García-Sancho (ORCID: https://orcid.org/0000-0001-6330-1028)
- Qingyuan Zhang
- Jiayi Shen
- Huilai Zhang
- Yuqin Song
Institutions
- The University of Sydney (AU)
- St Bartholomew's Hospital (GB)
- The University of Texas MD Anderson Cancer Center (US)
- Universidad de Salamanca (ES)
- Barts Health NHS Trust (GB)
- Leeds Teaching Hospitals NHS Trust (GB)
- Concord Repatriation General Hospital (AU)
- St James's University Hospital (GB)
- Ospedale di Circolo e Fondazione Macchi (IT)
- Tianjin Medical University Cancer Institute and Hospital (CN)
- Christchurch Hospital (NZ)
- Centre Hospitalier Universitaire de Bordeaux (FR)
- Peking University Cancer Hospital (CN)
- University Hospital Brno (CZ)
- Third Affiliated Hospital of Harbin Medical University (CN)
- Hospital Universitario Puerta de Hierro Majadahonda (ES)
- Istituto di Ematologia di Bologna (IT)
- Azienda USL di Bologna (IT)
- Hôpital Cardiologique du Haut-Lévêque (FR)
- Instituto de Investigación Biomédica de Salamanca (ES)
- Institut Bergonié (FR)
- Centro de Investigación del Cáncer (ES)
- Duran i Reynals Hospital (ES)
- Calvary Mater Newcastle Hospital (AU)
- Centro de Investigación Biomédica en Red de Cáncer (ES)
- General University Hospital in Prague (CZ)
- Instituto de Biología Molecular y Celular del Cáncer de Salamanca (ES)
- BeOne Medicines (Switzerland) (CH)
Publication Details
- Journal
- Targeted Oncology
- Published
- 2026-11-03
- DOI
- https://doi.org/10.1007/s11523-026-01268-3
- Primary Topic
- Lymphoma Diagnosis and Treatment
- Type
- article
- Field-Weighted Citation Impact
- 0.00