Surgeon-performed Ultrasound for Real-time Guidance In Oral Cancer Surgeries - A Multicenter Randomized Controlled Trial

The goal of this clinical trial is to improve the surgical treatment of patients with oral cancer. We will explore whether the use of surgeon performed ultrasound during these surgeries result in better tumor removal. We hypothesize that using intraoperative ultrasound to assist the resection results in more frequent clear surgical margins in oral cancer surgeries compared to standard methods. This improvement is associated with a reduced need for post-operative adjuvant therapies such as radiotherapy and reoperation, lower mortality rates, lower cancer recurrence, and enhanced quality of life for patients undergoing surgery for oral cancer. Participants will be randomized to either the control or intervention group: * Control group will receive standard treatment for oral cancer. * Intervention group will in addition to the standard treatment have surgery performed using ultrasound to guide the resection and evaluate resection margins intraoperatively. Outcomes: * Number of free surgical margins between control and intervention group. * Intraoperative surgeon assessed surgical margins compared to final histology report. * Dysphagia and quality of life questionnaires. * Recurrence rates. * Mortality rates. All participant will be followed-up at 3 months and 12 months with: * MDADI dysphagia questionnaire * EORTC head and neck cancer quality of life questionnaire * Follow-up on recurrrence and mortality.

NCT Number	NCT07203911
Lead Sponsor	Tobias Todsen Collaborators: Karolinska Institutet, National Cancer Institute, Milan, Aarhus University Hospital, Odense University Hospital, Aalborg University Hospital
Conditions	Tongue Cancer, Oral Cancer, Squamous Cell Carcinoma of the Oral Cavity or Oropharynx
Enrollment	150 participants
Start Date	2025-09-15
Primary Completion	2027-09-15 (estimated)
Study Completion	2031-08 (estimated)
Updated on ClinicalTrials.gov	2026-05-13