Download our new poster, presented at the recent ASCO 2021 Annual Meeting: “Ultra-sensitive detection and quantification of human papillomavirus (HPV) DNA in the plasma of patients with oropharyngeal squamous cell carcinoma (OPSCC) enrolled in the OPTIMA 2 treatment de-escalation trial”.
As patients with HPV-driven tumors often have a good prognosis, clinical investigators have recently explored new strategies for treatment de-escalation to avoid unnecessary side-effects caused by overtreatment. Important clinical data for HPV-SEQ was generated while investigating induction chemoimmunotherapy followed by risk/response stratified de-escalated locoregional therapy for patients with HPV+ OPSCC. During the trial, HPV-SEQ was employed to evaluate levels of cfHPV-DNA alongside patients’ radiographic response to therapy to assess the future utility in guiding treatment de-escalation strategies. HPV-SEQ showed robust quantitative detection of HPV 16/18 across a broad dynamic range over five orders of magnitude with low quantitative variability. Importantly, a high correlation was observed between dynamic changes in patients’ cfHPV DNA levels and radiographic responses following induction therapy.