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Review
. 2020 Sep:153:102984.
doi: 10.1016/j.critrevonc.2020.102984. Epub 2020 May 30.

Systemic Therapy in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma- A Systematic Review and Meta-Analysis

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Free article
Review

Systemic Therapy in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma- A Systematic Review and Meta-Analysis

Ashley Lau et al. Crit Rev Oncol Hematol. 2020 Sep.
Free article

Abstract

Background: The most effective regimen is unclear for patients with recurrent or metastatic head and neck squamous cell carcinomas (R/M HNSCC). We performed a systematic review and meta-analysis of randomized controlled trials (RCTs) investigating only systemic therapy for R/M HNSCC.

Methods: This systematic review followed PRISMA and the Cochrane Collaboration Handbook for Systematic Reviews of Interventions. Endpoints included overall survival (OS), progression-free survival (PFS) and overall response rates (ORR).

Results: 55 RCTs from 1990-November 2019 qualified for review (n=12132). Only PD-1/PDL-1 inhibitors increased OS in R/M HNSCC platinum-resistant disease against their control (HR = 0·79, 95%CI 0·70-0.90, p<0·001), especially for PD-L1 ≥ 1% expressing tumours (HR = 0·72, 95%CI 0·60-0·86, p<0·001). PFS was prolonged for anti-EGFR agents against methotrexate when used in a second line setting (HR = 0·74, 95 %CI 0·62-0·87, p=0·001), and when cetuximab (HR = 0·60, 95%CI 0·49-0·72, p<0·0001) and panitumumab (HR = 0·76, 95%CI 0·65-0·89, p=0·001) were introduced to platinum-based regimens for first-line treatment.

Conclusions: PD-1/PD-L1 inhibitors may represent the future of R/M HNSCC treatment. However, EGFR inhibitors may still play improve clinical outcomes.

Keywords: Antineoplastic Protocols; Head and Neck Neoplasms/therapy; Immunotherapy; Local/therapy; Neoplasm Recurrence; Neoplasms Metastasis.

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