This is a Phase II, multicenter, randomized open-label and comparative study designed to evaluate whether Capsaïcin patches (Qutenza®) reduce neuropathic pain when compared to Amitriptyline (Laroxyl®) in head and neck cancer survivors presenting with neuropathic pain sequelae (ClinicalTrials.gov Identifier: NCT04704453). The primary endpoint is pain evaluated using a numeric scale. We opted for a randomized comparative phase II trial design rather than a single arm or a randomized non-comparative phase II trial to avoid obtaining false positive or false negative results only related to the study hypothesis [17]. All head and neck cancer patients presenting with neuropathic pain sequelae will be eligible for inclusion into the study. Patients that give their informed consent will be enrolled and randomized into the Amitriptyline (Laroxyl®) or Capsaïcin patch (Qutenza®) arm of the study.
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