- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04745741
Evaluating the Rationality of the International Guideline About Selective Coverage of Level Ib in CTV With NPC
April 28, 2021 updated by: Fujian Cancer Hospital
Evaluating the Rationality of the International Guideline's Recommendations Regarding Selective Coverage of Level Ib in Node Clinical Target Volume With Nasopharyngeal Carcinoma : Results From a Real-world Series
The purpose of this study was to evaluate its rationality in real-world data and provide clinical evidence for the refinement of nodal CTV delineation in nasopharyngeal carcinoma(NPC).
Study Overview
Status
Unknown
Conditions
Intervention / Treatment
Detailed Description
Intensity-modulated radiation therapy (IMRT) has gradually replaced two-dimensional radiation therapy as it offers improved target conformity.
Xerostomia is still the most common side effect of radiotherapy in patients with NPC treated with IMRT.
Most stimulated saliva is secreted by the parotid glands (PGs), while the submandibular glands (SMGs) produce most of the unstimulated saliva and mucins, which may influence the degree of a dry mouth sensation.There are still differences in the understanding of nasopharyngeal cancer experts at home and abroad on the delineation of clinical target volumes., suitable criteria for elective irradiation of neck level Ib need to be re-evaluated.Therefore, we conducted a retrospective study to assess the feasibility of recommendation to level Ib in the International Guideline for Delineation of Clinical Target Volumes.
Study Type
Observational
Enrollment (Anticipated)
200
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
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Fujian
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Fuzhou, Fujian, China, 350014
- Department of radiation oncology, Fujian cancer hospital
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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 70 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Sampling Method
Probability Sample
Study Population
Patients who met the inclusion criteria and did not meet the exclusion criteria of our center.
Description
Inclusion Criteria:
- histologically confirmed NPC by biopsy (clearly recorded in the pathology report or medical history) ;
- no evidence of distant metastasis at initial diagnosis and receiving radical IMRT in our center
- the following conditions: ① level IB metastasis, ② involvement of the submandibular gland, ③ involvement of structures that drain to level Ib as the first echelon site ( the oral cavity, anterior half of nasal cavity involvement) ④ involvement of level II LNs with extracapsular extension(because the judgment of extracapsular invasion is greatly influenced by subjective factors, this study only include patients who had high grade ENE(G2/G3 as demonstrated in our previous study: Oral Oncol. 2019 Dec;99:104438.)⑤ level II nodal involvement with maximum nodal axial diameter greater than 2 cm.
- all patients who were treated at Lin Shaojun's attending group from June 2005 to December 2012.
- presence of complete baseline magnetic resonance imaging data of the nasopharyngeal skull base and neck and treated in our center at initial diagnosis .
Exclusion Criteria:
- disease progression during IMRT;
- fail to obtain tumor efficacy evaluation information in the medical records of the research center;
- previous malignancy or other concomitant malignant disease;
- receiving blind treatment in clinical research.
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
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
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IB-positive group
Patients with level IB metastasis and histologically confirmed positive by biopsy.
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The gross tumor volume of the nasopharynx and neck nodes (GTVnx and GTVnd) were delineated according to the tumor extension.
The CTVnx was defined as GTVnx + nasopharynx mucosa + 8mm +corresponding anatomical structure without the delineation of CTV1.
The CTVnd was defined as GTVnd plus the elective neck area.
The prescribe doses of GTVnx/GTVnd, CTVnx, CTVnd were 66-70Gy,54-56Gy and 50-54Gy in 31-35 fractions, respectively.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
regional recurrence-free survival (RRFS)
Time Frame: 60 months
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The duration of time to regional failure were calculated from the start of treatment to the dates of recurrence.
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60 months
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level IB nodal recurrence-free survival
Time Frame: 60 months
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The duration of time to level Ib recurrence were calculated from the start of treatment to the date of Ievel Ib recurrence.
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60 months
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
local recurrence-free survival (LRFS)
Time Frame: 60 months
|
LRFS was calculated from the start of treatment to the dates of local recurrence.
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60 months
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distant metastasis-free survival (DMFS)
Time Frame: 60 months
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DMFS was calculated from the start of treatment to the dates of distant metastasis.
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60 months
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Overall survival
Time Frame: 60 months
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OS was calculated from the date of randomization to death from any cause.
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60 months
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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 (Anticipated)
May 1, 2021
Primary Completion (Anticipated)
May 1, 2021
Study Completion (Anticipated)
June 1, 2021
Study Registration Dates
First Submitted
February 2, 2021
First Submitted That Met QC Criteria
February 7, 2021
First Posted (Actual)
February 9, 2021
Study Record Updates
Last Update Posted (Actual)
April 29, 2021
Last Update Submitted That Met QC Criteria
April 28, 2021
Last Verified
February 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Neoplasms by Histologic Type
- Neoplasms
- Neoplasms by Site
- Neoplasms, Glandular and Epithelial
- Pharyngeal Neoplasms
- Otorhinolaryngologic Neoplasms
- Head and Neck Neoplasms
- Nasopharyngeal Diseases
- Pharyngeal Diseases
- Stomatognathic Diseases
- Otorhinolaryngologic Diseases
- Nasopharyngeal Neoplasms
- Carcinoma
- Nasopharyngeal Carcinoma
Other Study ID Numbers
- NPC006.1
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
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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