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Table 2 Inclusion criteria for select randomized adjuvant treatment trials comparing chemoradiation versus radiation alone

From: De-intensification of adjuvant therapy in human papillomavirus-associated oropharyngeal cancer

Trial

Inclusion criteria

EORTC 22931 [23]

Sites: oral cavity, oropharynx, larynx, or hypopharynx

1 of the following:

 • pT3-4 N0-3 except for T3N0 of the larynx with negative resection margins

 • pT1-2 N2-3

 • pT1-2 N0-1 and positive margins, PNI, or vascular embolism (lymphovascular invasion)

 • oral cavity or oropharyngeal primaries with level IV or V lymph node involvement

RTOG 9501 [22]

Sites: oral cavity, oropharynx, larynx, or hypopharynx

Status post complete macroscopic resection

1 of the following

 • two or more metastatic regional lymph nodes

 • extracapsular extension

 • microscopically involved mucosal margins of resection