Study of Pembrolizumab (MK-3475) or Placebo With Chemoradiation in Participants With Locally Advanced Head and Neck Squamous Cell Carcinoma (MK-3475-412/KEYNOTE-412)
Summary
The purpose of this study is to determine the efficacy and safety of pembrolizumab given concomitantly with chemoradiation (CRT) and as maintenance therapy versus placebo plus CRT in participants with locally advanced head and neck squamous cell carcinoma (LA HNSCC). The primary hypothesis is that pembrolizumab in combination with CRT is superior to placebo in combination with CRT with respect to event-free survival (EFS).
Timeline
- Start
- 2017-04-05
- Primary completion
- 2022-05-31
- Completion
- 2024-08-21
Outcome
Missed primary endpoint
registry p = 0.0429; Hazard Ratio (HR) 0.83 (95% CI 0.68 to 1.03); Log Rank; note: P-value crossing boundary of 0.0242 required for statistical significance. NCT03040999 ↗
paper Pembrolizumab plus chemoradiotherapy did not significantly improve event-free survival compared with chemoradiotherapy alone PMID 38561010 ↗
Publications
- Machiels JP, Tao Y, Licitra L, Burtness B, Tahara M, Rischin D, Alves G, Lima IPF, Hughes BGM, Pointreau Y, Aksoy S, Laban S, Greil R, Burian M, Hetnal M, Delord JP, Mesia R, Taberna M, Waldron JN, Simon C, Gregoire V, Harrington KJ, Swaby RF, Zhang Y, Gumuscu B, Bidadi B, Siu LL; KEYNOTE-412 Investigators. Pembrolizumab plus concurrent chemoradiotherapy versus placebo plus concurrent chemoradiotherapy in patients with locally advanced squamous cell carcinoma of the head and neck (KEYNOTE-412): a randomised, double-blind, phase 3 trial. Lancet Oncol. 2024 May;25(5):572-587. doi: 10.1016/S1470-2045(24)00100-1. Epub 2024 Mar 29.
- Machiels JP, Tao Y, Burtness B, Tahara M, Licitra L, Rischin D, Waldron J, Simon C, Gregoire V, Harrington K, Alves GV, Figueiredo Lima IP, Pointreau Y, M Hughes BG, Aksoy S, Hetnal M, Ge JY, Brown H, Cheng J, Bidadi B, Siu LL. Pembrolizumab given concomitantly with chemoradiation and as maintenance therapy for locally advanced head and neck squamous cell carcinoma: KEYNOTE-412. Future Oncol. 2020 Jun;16(18):1235-1243. doi: 10.2217/fon-2020-0184. Epub 2020 Jun 3.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Pembrolizumab | Monoclonal antibody | 200 mg | Intravenous |
| Background | Cisplatin | Other / unclassified | 100 mg/m2 | Intravenous |