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Adelstein DJ , Ismaila N , Ku JA , Burtness B , Swiecicki PL , Mell L , Beitler JJ , Gross N , Jones CU , Kaufman M , Le QT , Semrad TJ , Siu LL , Ridge JA
Role of Treatment Deintensification in the Management of p16+ Oropharyngeal Cancer: ASCO Provisional Clinical Opinion
J Clin Oncol. 2019 Jun 20;37(18) :1578-1589
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Abstract
PURPOSE: An ASCO provisional clinical opinion offers timely clinical direction to ASCO's membership after publication or presentation of potentially practice-changing data from major studies. This provisional clinical opinion addresses the role of treatment deintensification in the management of p16+ oropharyngeal cancer (OPC). CLINICAL CONTEXT: For patients with p16+ OPC, current treatment approaches are well established. In the good-prognosis subset of nonsmoking p16+ patients with early-stage disease, these treatments have been highly successful, albeit with significant associated acute and late toxicity. Deintensification of surgical, radiation, and medical treatment in an effort to reduce toxicity while preserving high survival rates is an appropriate therapeutic objective currently being explored in patients who are experiencing the best treatment results. However, careful delineation of this good-risk subset is essential. While the current eighth edition of the American Joint Committee on Cancer staging system is prognostically robust, it should not be interpreted as reason to alter therapeutic decisions or justify treatment deintensification. The development of transoral surgical techniques and the adoption of intensity-modulated radiation therapy planning have been transformative in disease management and suggest potentially beneficial approaches. Recent advances in systemic treatments have been notable. The optimal integration and modification of these modalities to ameliorate toxicity has not been defined and remains an important focus of current investigation. PROVISIONAL CLINICAL OPINION: The hypothesis that de-escalation of treatment intensity for patients with p16+ OPC can reduce long-term toxicity without compromising survival is compelling and necessitates careful study and the analysis of well-designed clinical trials before changing current treatment standards. Treatment deintensification for these patients should only be undertaken in a clinical trial. Additional information is available at www.asco.org/head-neck-cancer-guidelines .
Notes
1527-7755 Adelstein, David J Ismaila, Nofisat Ku, Jamie A Burtness, Barbara Swiecicki, Paul L Mell, Loren Beitler, Jonathan J Gross, Neil Jones, Christopher U Kaufman, Marnie Le, Quynh-Thu Semrad, Thomas J Siu, Lillian L Ridge, John A Journal Article United States .J Clin Oncol. 2019 Jun 20;37(18):1578-1589. doi: 10.1200/JCO.19.00441. Epub 2019 Apr 25.