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Proton Therapy for Recurrent Nasopharyngeal Carcinoma

NCT07412314 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 52

Last updated 2026-03-09

No results posted yet for this study

Summary

The above studies show that most of the supportive evidence for the reduction of toxicity and improvement of efficacy of proton therapy for recurrent Nasopharyngeal carcinoma(NPC) comes from various observational and retrospective studies, lacking high-level evidence-based medical evidence. The conduct of this study will explore the safety and efficacy of intensity-modulated proton radiotherapy for recurrent NPC and provide more high-quality evidence-based medical evidence for proton therapy of recurrent cancer.

Conditions

  • Recurrent Nasopharyngeal Carcinoma

Interventions

RADIATION

Proton therapy

Treatment planning and target delineation: All patients were in the supine position with the head extended backward, with the mask fixed, and enhanced computed tomography (CT) scans were performed for positioning. The slice thickness was 1.25mm. The gross tumor volume (GTV) included the recurrent primary lesion. The clinical target volume (CTV) included the anatomical expansion of the tumor and the suspicious lesions visible under the microscope. The CTV was defined as an expansion of 5-10mm outside the GTV. Radiation dose and treatment plan: The prescribed dose was 60-66 Gray (Gy) delivered in 30-33 fractions. Plan design and dose verification: The physicist designed radiotherapy plans according to the requirements of the physician. After the radiotherapy plan was designed, it was evaluated and repeatedly optimized by the physician and the physicist until satisfactory results were achieved. Treatment: was required for each treatment session.

DEVICE

Proton radiation therapy

Radiation: Proton Therapy System (ProBeam)

Sponsors & Collaborators

  • Guangzhou Concord Cancer Center

    lead OTHER

Principal Investigators

  • Yuan Taize · private hospital

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-03-10
Primary Completion
2028-03-10
Completion
2028-03-10

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07412314 on ClinicalTrials.gov