Abstract
ObjectiveCirculating tumor DNA assays have robust potential as molecular surveillance tools. They may also exacerbate patient distress without improving outcomes. We investigate patient acceptability of a validated ctHPVDNA assay (NavDx) during cancer surveillance for HPV(+) oropharyngeal cancer (OPC). MethodsConsented HPV(+) OPC participants completed the NCCN Distress Thermometer, the Hospital Anxiety Depression Scale (HADS), and the Functional Assessment of Cancer Therapy-General (FACT-G) scale both (1) before NavDx blood draw, and (2) after results were provided. Patients then completed a series of focused questions related to their perceptions of the assay. ResultsOverall, 55 patients completed the study, with 98.2 % showing no recurrence. For the NCCN Distress Thermometer, median patient distress decreased (2.0 (IQR 1–5) vs. 1.0 (IQR 0–3)) (p < 0.001) in association with NavDx. Using scores ≥ 4 as a cutoff point to define clinically elevated distress, scores also improved (36.4 % vs. 18.2 %, p = 0.031). For HADS, anxiety significantly improved (5.0 (IQR 2.0–7.0) vs. 3.0 (IQR 1.0–6.5)) (p = 0.037), but not depression (3.0 (IQR 1.0–7.0) vs. 3.0 (IQR 1.0–6.5)) (p = 0.870). FACT-G scores showed no substantial differences. On survey questionnaires, 95.5 % of patients believed the test to be helpful, and 100 % felt “somewhat” or “extremely” confident in the assay as a monitoring tool. While 59.1 % felt that it reduced anxiety, 88.4 % concordantly felt that it did not introduce anxiety. ConclusionctHPVDNA as a molecular surveillance tool reduced distress levels in HPV(+) OPC patients, with notably high patient confidence in the approach. Further investigation is warranted to judiciously incorporate this emerging modality in surveillance guidelines.
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