Postoperative Radiotherapy for Early-stage Oral Tongue Squamous Cell Carcinoma Patients With Risk Factors: a Prospective, Multicenter, Randomized Controlled, Open-labelled Trial

Condition(s) studied

Investigational drug(s) / intervention(s)

Postoperative radiotherapy: Radiation therapy should commence immediately after the surgical wound has fully healed, typically 4 to 6 weeks post-operation, but no later than 8 weeks post-operation

Study summary

The goal of this clinical trial is to learn whether postoperative radiotherapy can delay disease recurrence in patients with early-stage oral squamous cell carcinoma who have high-risk factors. The main question it aims to answer is: Is the clinical outcome of early-stage tongue squamous cell carcinoma patients with risk factors after tumor enlargement resection receiving postoperative radiotherapy better than that of patients with simple follow-up observation? How is the safety? Researchers will compare the postoperative radiotherapy group and the simple follow-up observation group to see if there are differences between the two groups in terms of 3-year disease-free survival rate, 5-year disease-free survival rate, overall survival rate, toxicity events, and quality of life.

Participants of postoperative radiotherapy group will receive postoperative radiotherapy 6-8 weeks after surgery.

Eligibility

Primary outcome measure(s)

• 3-year DFS — 3 years
  The survival time of patients without significant tumor growth from the date of randomization. The appearance of new lesions is used as the criterion for recurrence (including recurrence of the primary lesion and surrounding tissues, cervical lymph node metastasis, and distant metastasis), and the time point of recurrence is the date of the first observation of measurable new lesions. The disease-free survival period will be defined as the time from randomization to death for patients who die from any other cause before disease recurrence is recorded. Patients who have not experienced disease recurrence or death (i.e. disease-free survival) during analysis will have the time of the last efficacy evaluation as the endpoint. For disease-free survival patients who have not undergone tumor evaluation since the baseline period, the first day of treatment will be used as the endpoint of disease-free survival. Calculate the 3-year disease-free survival rate of all patients after follow-up.

Trial sites (28)

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