Pitfalls of post-treatment PET after de-intensified chemoradiotherapy for HPV-associated oropharynx cancer: Secondary analysis of a phase 2 trial.
dc.contributor.author | Wang, Kyle | |
dc.contributor.author | Wong, Terence Z | |
dc.contributor.author | Amdur, Robert J | |
dc.contributor.author | Mendenhall, William M | |
dc.contributor.author | Sheets, Nathan C | |
dc.contributor.author | Green, Rebecca | |
dc.contributor.author | Thorp, Brian D | |
dc.contributor.author | Patel, Samip N | |
dc.contributor.author | Hackman, Trevor G | |
dc.contributor.author | Zanation, Adam M | |
dc.contributor.author | Weissler, Mark C | |
dc.contributor.author | Chera, Bhishamjit S | |
dc.date.accessioned | 2022-01-01T15:19:21Z | |
dc.date.available | 2022-01-01T15:19:21Z | |
dc.date.issued | 2018-03 | |
dc.date.updated | 2022-01-01T15:19:20Z | |
dc.description.abstract | OBJECTIVES:We evaluated patterns of nodal response and positive predictive value (PPV) of 3 month post-treatment PET in patients with HPV-associated oropharyngeal cancer treated on a multi-institutional de-intensification trial. MATERIALS AND METHODS:Eligibility criteria included: (1) T0-3, N0-2c, M0, (2) HPV+/p16+ oropharyngeal squamous cell carcinoma, and (3) ≤10 pack-years smoking or ≤30 pack-years and abstinent ≥5 years. Patients received 60 Gy radiation alone (T0-2, N0-1) or with concurrent weekly cisplatin 30 mg/m2 and surveillance PET three months post-radiation. Nodal responses were categorized as complete (CR), equivocal (ER), or incomplete (IR) using both local and central radiographic review. A "true positive" was ER/IR with clinical/radiographic progression or positive pathology. RESULTS:79 node-positive pts (84% N2) were analyzed. Distribution of nodal CR, ER, and IR was 44 (56%), 27 (34%), and 8 (10%), respectively. 29 (37%) had ER/IR in pre-treatment node-positive neck levels, whereas 14 (18%) had ER/IR in pre-treatment node-negative levels. Of patients with ER/IR, 5 were observed clinically, 19 received repeat imaging, and 11 received either biopsy (1) or neck dissection (10). The PPV was 9% for ER/IR and 13% for IR, with 3 patients found to have persistent disease on neck dissection. There was no difference in nodal relapse rate in patients with nodal CR vs. nodal ER/IR. CONCLUSION:Post-treatment PET may not accurately predict the presence of persistent disease in patients with favorable-risk oropharynx cancer. These results support close surveillance rather than surgical evaluation in most favorable-risk patients. | |
dc.identifier | S1368-8375(18)30033-2 | |
dc.identifier.issn | 1368-8375 | |
dc.identifier.issn | 1879-0593 | |
dc.identifier.uri | ||
dc.language | eng | |
dc.publisher | Elsevier BV | |
dc.relation.ispartof | Oral oncology | |
dc.relation.isversionof | 10.1016/j.oraloncology.2018.01.023 | |
dc.subject | Humans | |
dc.subject | Oropharyngeal Neoplasms | |
dc.subject | Lymphatic Metastasis | |
dc.subject | Positron-Emission Tomography | |
dc.subject | Adult | |
dc.subject | Aged | |
dc.subject | Aged, 80 and over | |
dc.subject | Middle Aged | |
dc.subject | Female | |
dc.subject | Male | |
dc.subject | Alphapapillomavirus | |
dc.subject | Clinical Trials, Phase II as Topic | |
dc.subject | Kaplan-Meier Estimate | |
dc.subject | Chemoradiotherapy | |
dc.title | Pitfalls of post-treatment PET after de-intensified chemoradiotherapy for HPV-associated oropharynx cancer: Secondary analysis of a phase 2 trial. | |
dc.type | Journal article | |
duke.contributor.orcid | Wong, Terence Z|0000-0002-3830-1779 | |
pubs.begin-page | 108 | |
pubs.end-page | 113 | |
pubs.organisational-group | School of Medicine | |
pubs.organisational-group | Duke Cancer Institute | |
pubs.organisational-group | Radiology, Nuclear Medicine | |
pubs.organisational-group | Medicine, Medical Oncology | |
pubs.organisational-group | Duke | |
pubs.organisational-group | Institutes and Centers | |
pubs.organisational-group | Radiology | |
pubs.organisational-group | Clinical Science Departments | |
pubs.organisational-group | Medicine | |
pubs.publication-status | Published | |
pubs.volume | 78 |
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