Publication/Presentation Date

1-1-2022

Abstract

BACKGROUND: No risk-stratification strategies exist for patients with recurrent oropharyngeal cancer (OPC).

METHODS: Retrospective analysis using data from prospective NRG Oncology clinical trials RTOG 0129 and 0522. Eligibility criteria included known p16 status and smoking history, and locoregional/distant recurrence. Overall survival (OS) was measured from date of recurrence. Recursive partitioning analysis was performed to produce mutually exclusive risk groups.

RESULTS: Hundred and fifty-four patients were included with median follow-up after recurrence of 3.9 years (range 0.04-9.0). The most important factors influencing survival were p16 status and type of recurrence, followed by surgical salvage and smoking history (≤20 vs. >20 pack-years). Three significantly different risk groups were identified. Patients in the low-, intermediate-, and high-risk groups had 2-year OS after recurrence of 81.1% (95%CI 68.5-93.7), 50.2% (95%CI 36.0-64.5), and 20.8% (95%CI 10.5-31.1), respectively.

CONCLUSION: Patient and tumor characteristics may be used to stratify patients into risk groups at the time of OPC recurrence.

Volume

44

Issue

1

First Page

158

Last Page

167

ISSN

1097-0347

Disciplines

Medicine and Health Sciences

PubMedID

34729846

Department(s)

Department of Medicine, Hematology-Medical Oncology Division

Document Type

Article

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