Hyperfractionated Intensity-modulated Radiotherapy (IMRT) Versus Conventional Fraction IMRT for Patients With Loco-regionally Recurrent Nasopharyngeal Carcinoma.

March 21, 2020 updated by: Ming-Yuan Chen, Sun Yat-sen University

Multiple Centre, Randomised, Controlled Trial of Hyperfractionated IMRT and Conventional Fraction IMRT for Patients With Loco-regionally Recurrent Nasopharyngeal Carcinoma.

This study evaluates the hyperfractionated IMRT in the treatment of patients with locally recurrent nasopharyngeal carcinoma. Half of participants will receive hyperfractionated IMRT, while the other half will receive conventional fraction IMRT.

Study Overview

Detailed Description

Local recurrence is one of the most challenging issues faced with nasopharyngeal carcinoma (NPC) patients. 8.4% to 10.9% of the patients developed recurrent diseases at the primary or/and regional site after definitive radiotherapy. Although some patients with limited recurrent lesions underwent surgery, the main treatment for these recurrent NPC patients was still re-irradiation.

Multiple retrospective and prospective studies have reported: under the condition of conventional fraction IMRT with the total dose of 60 gray (Gy) (division 27 times, once a day, every 2.2Gy), you can get a better local tumor control rate and survival outcome. However, the patients still underwent some severe late complications including nasopharyngeal necrosis, nasopharyngeal bleeding, temporal lobe necrosis, with the incidence rates of 28.8%, 18.6%, 20.3%, respectively. Approximately 50% of recurrent NPC patients died of these severe late complications, significantly compromising the overall survival rate of the patients. Previous studies showed that hyperfractionated radiotherapy could reduce severe late complication rates significantly, without affecting the local control rate. Indeed, we found that under the condition of equal irradiation time and tumor equivalent dosage between hyperfractionated IMRT (total dose of 65Gy, division 54 times, twice a day, once 1.2Gy, irradiation interval of 6-8 hours) and conventional fraction IMRT (total dose of 60Gy, division 27 times, once a day, every 2.2Gy), the normal late responding tissues equivalent dosage( EQD2) significantly decreased compared with conventional fraction IMRT. Therefore, the use of hyperfractionated IMRT is expected to decrease severe late complications rates, thereby improving the quality of life and overall survival of patients.

Study Type

Interventional

Enrollment (Anticipated)

142

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Guangdong
      • Guangzhou, Guangdong, China, 510060
        • Sun Yat-sen University Cancer Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • histologically approved WHO III patients received radical radiotherapy initially before recurrence (irradiation dosage > 66 Gy).

the interval time between initial treatment and relapse more than 1 year. recurrent Tumor stage2-4(rT2-4) Node stage0-2(rN0-2) Metastasis stage0(rM0) (rT2-4N0-2M0), overall stage II-IVa according to 2009 American Joint Committee on Cancer (AJCC/UICC) Tumor, Node, and Metastasis (TNM) staging system.

a Karnofsky performance status (KPS) score more than 70.

Exclusion Criteria:

  • a history of previous or synchronous malignant tumors. recurrent Node stage3(rN3), recurrent Metastasis stage1(rM1) according to 2009 AJCC/UICC TNM staging system.

positive surgical margin after neck dissection. patients suffered with severe mental illness. severe diseases of the lung and cardiovascular system. severe hepatic and renal dysfunction.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Hyperfractionated IMRT Group
IMRT (total dose of 65Gy, division 54 times, twice a day, once 1.2Gy, irradiation interval of 6-8 hours)
Active Comparator: Conventional Fraction IMRT Group
IMRT (total dose of 60Gy, division 27 times, once a day, every 2.2Gy)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Overall survival rate
Time Frame: 3 year
3 year
Severe late complications rate
Time Frame: 2 year
2 year

Secondary Outcome Measures

Outcome Measure
Time Frame
Quality of life questionnaire
Time Frame: 2 year
2 year
Loco-regional relapse free survival rate
Time Frame: 3 year
3 year
Distant metastasis free survival rate
Time Frame: 3 year
3 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Yi Pan, MD, PhD, Guangdong Provincial People's Hospital
  • Study Director: Dong-Ping Chen, MD, PhD, Affiliated Cancer Hospital & Institute of Guangzhou Medical University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2015

Primary Completion (Anticipated)

December 1, 2022

Study Completion (Anticipated)

March 1, 2023

Study Registration Dates

First Submitted

May 25, 2015

First Submitted That Met QC Criteria

May 27, 2015

First Posted (Estimate)

May 28, 2015

Study Record Updates

Last Update Posted (Actual)

March 24, 2020

Last Update Submitted That Met QC Criteria

March 21, 2020

Last Verified

March 1, 2020

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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