Phase III trial of chemoradiotherapy with temozolomide plus nivolumab or placebo for newly diagnosed glioblastoma with methylated MGMT promoter
- Neuro Oncol. 2022 Nov 2;24(11):1935-1949. doi: 10.1093/neuonc/noac116.
- 1. Department of Neurosurgery, Stanford University School of Medicine, Palo Alto, California, USA.
- 2. Department of Neurology and Brain Tumor Center, University Hospital and University of Zurich, Zurich, Switzerland.
- 3. Sorbonne Université, Institut du Cerveau-Paris Brain Institute-ICM, Inserm, CNRS, AP-HP, Hôpital Universitaire La Pitié Salpêtrière, Paris, France.
- 4. Frankfurt Cancer Institute, Goethe University, Frankfurt, Germany.
- 5. Institute of Neurooncology, Goethe University Hospital, Frankfurt, Germany.
- 6. Unit of Molecular Neuro-Oncology, Neurological Institute C. Besta, Milan, Italy.
- 7. Translational Therapeutics Program, The Ohio State University Comprehensive Cancer Center, Columbus, Ohio, USA.
- 8. Department of Medicine, Oncology Division, Washington University Medical School, St. Louis, Missouri, USA.
- 9. Department of Neurology, Yale University School of Medicine, New Haven, Connecticut, USA.
- 10. Departments of Neurology and Neurological Surgery, University of California San Francisco, San Francisco, California, USA.
- 11. Neuro-Oncology Department, Hospices Civils de Lyon, SynatAc Team, Institute MeLis, INSERM U1314/CNRS UMR 5284, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France.
- 12. Department of Neurology and Neurosurgery, Brain Tumour Research Centre, Montreal Neurological Institute-Hospital, McGill University, Montreal, Quebec, Canada.
- 13. Medical Oncology, University Medical Center Utrecht, Utrecht University, Utrecht, the Netherlands.
- 14. Neurology Clinic, University of Heidelberg, National Center for Tumor Diseases, Heidelberg, Germany.
- 15. Neuro-Oncology Department, Levine Cancer Institute, Charlotte, North Carolina, USA.
- 16. Moffitt Cancer Center, University of South Florida, Tampa, Florida, USA.
- 17. Department of Neurology and Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
- 18. Department of Neurosurgery, Kanazawa University, Ishikawa, Japan.
- 19. Bristol Myers Squibb, Princeton, New Jersey, USA.
- 20. Syneos Health, Morrisville, North Carolina, USA.
- 21. Center for Neuro-Oncology, Dana-Farber/Harvard Cancer Center, Boston, Massachusetts, USA.
Background: Nearly all patients with newly diagnosed Glioblastoma experience recurrence following standard-of-care radiotherapy (RT) + temozolomide (TMZ). The purpose of the phase III randomized CheckMate 548 study was to evaluate RT + TMZ combined with the immune checkpoint inhibitor nivolumab (NIVO) or placebo (PBO) in patients with newly diagnosed Glioblastoma with methylated MGMT promoter (NCT02667587).
Methods: Patients (N = 716) were randomized 1:1 to NIVO [(240 mg every 2 weeks × 8, then 480 mg every 4 weeks) + RT (60 Gy over 6 weeks) + TMZ (75 mg/m2 once daily during RT, then 150-200 mg/m2 once daily on days 1-5 of every 28-day cycle × 6)] or PBO + RT + TMZ following the same regimen. The primary endpoints were progression-free survival (PFS) and overall survival (OS) in patients without baseline corticosteroids and in all randomized patients.
Results: As of December 22, 2020, median (m)PFS (blinded independent central review) was 10.6 months (95% CI, 8.9-11.8) with NIVO + RT + TMZ vs 10.3 months (95% CI, 9.7-12.5) with PBO + RT + TMZ (HR, 1.1; 95% CI, 0.9-1.3) and mOS was 28.9 months (95% CI, 24.4-31.6) vs 32.1 months (95% CI, 29.4-33.8), respectively (HR, 1.1; 95% CI, 0.9-1.3). In patients without baseline corticosteroids, mOS was 31.3 months (95% CI, 28.6-34.8) with NIVO + RT + TMZ vs 33.0 months (95% CI, 31.0-35.1) with PBO + RT + TMZ (HR, 1.1; 95% CI, 0.9-1.4). Grade 3/4 treatment-related adverse event rates were 52.4% vs 33.6%, respectively.
Conclusions: NIVO added to RT + TMZ did not improve survival in patients with newly diagnosed Glioblastoma with methylated or indeterminate MGMT promoter. No new safety signals were observed.