Nerve Excitability in Cisplatin-Induced Peripheral Neuropathy

This study aims to evaluate nerve excitability in participants with cisplatin-induced peripheral neuropathy (cis-PN) using threshold tracking nerve conduction studies (TTNCS). By assessing changes in nerve excitability parameters, the study seeks to enhance understanding of the pathophysiology of cis-PN and identify early markers of neurotoxicity in participants undergoing cisplatin-based chemotherapy. Peripheral neuropathy is a sensory disorder where patients feel a burning, tingling, or pins-and-needles sensation in the hands and feet that can lead to oversensitivity or numbness. The U.S. Food and Drug Administration (FDA) has not approved DS5 0 Isolated Bipolar Constant Current Stimulator as a diagnostic tool for Peripheral Neuropathy. The research study procedures include screening for eligibility, in-clinic visits, blood tests, questionnaires, and standard neurological exams called nerve conduction studies and Threshold tracking nerve conduction studies. Participants will be placed into one of the following groups: * Cohort A: Participants without previous treatment with cisplatin and are about to start treatment with Cisplatin. * Cohort B: Participants with previous treatment with cisplatin in the past 3 months (and no longer being treated with cisplatin) and are currently experiencing cisplatin- induced peripheral neuropathy. It is expected that about 60 people will take part in this research study.