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NCT07092475 2025-11-26

The Impact of Intraoperative Methadone on Postoperative Opioid Use

Phase 3 Withdrawn

Breast Neoplasms

NCT02531906 2022-07-25

Gabapentin, Methadone Hydrochloride, and Oxycodone Hydrochloride in Improving Quality of Life in Patients With Stage II-IV Head and Neck Cancer During Chemoradiation

Phase 1 Completed

Squamous Cell Carcinoma of Head and Neck, Pain, Stomatitis