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Target Volume Delineation After NACT in LA-NPCarcinoma Patients Treated With NACT+ CCRT

NCT03283293 · Status: COMPLETED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 112

Last updated 2019-02-12

No results posted yet for this study

Summary

The gross tumor volumes of the primary site and the neck nodes (GTVnx and GTVnd) could be delineated according to the post-NACT tumor position and receive radical radiation dose, while the tumor disappear after NACT could be encompassed in the first clinical target volume (CTV1) and receive high preventive radiation dose. Through this method,it is more likely to achieve the ultimate goal that maximize the chance of cure while minimize the injury of surrounding normal tissues, maintaining organ function and life quality. Therefore, this stage II clinical trial was designed to study the prognosis and locoregional failure patterns of this target volume delineation method in LA-NPC treated with NACT plus CCRT.

Conditions

  • Nasopharyngeal Carcinoma

Interventions

RADIATION

Target Volume Delineation after NACT

The gross tumor volumes of the primary site and the neck nodes (GTVnx and GTVnd) were delineated in accordance with the head and neck magnetic resonance imaging (MRI) and endoscopy, which obtained two weeks after the last cycle of NACT. The first clinical target volume (CTV1) was defined as the GTVnx plus a 5-10mm margin (2 to 3mm margin posteriorly) to encompass the high-risk sites of microscopic extension, the whole nasopharynx, and the location and extent of the primary tumor before NACT. The second clinical target volume (CTV2) was defined as the CTV1 plus a 5-10mm margin (2 to 3mm margin posteriorly) to encompass the low-risk sites of microscopic extension, the level of the lymph node located before NACT, and the elective neck area. The prescribed dose to GTVnx, GTVnd, CTV1 and CTV2 were 68Gy/30f, 62-66Gy/30f, 60Gy/30f and 54Gy/30f, respectively.

Sponsors & Collaborators

  • Sun Yat-sen University

    lead OTHER

Principal Investigators

  • Chong Zhao · Sun Yat-sen University

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
14 Years
Max Age
70 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2001-02-28
Primary Completion
2007-04-30
Completion
2008-04-30

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 NCT03283293 on ClinicalTrials.gov