Retrospective Investigation of the Impacts of Prognosis for Nasopharyngeal Carcinoma Patients

Sun Yat-sen University

Status: Completed

Conditions: Malignant Neoplasm of Other Specified Site of Nasopharynx

Treatments: Other: IC+CCRT; Other: CCRT

Study type: Observational

Funder types: Other

Identifiers

NCT02604472

2013046

Details and patient eligibility

About

To investigate whether the additional induction chemotherapy (IC) to concurrent chemoradiotherapy (CCRT) was able to improve overall survival (OS) and disease-free survival (DFS), and to clarify if stage-specified chemoradiotherapy regimens benefit the most for locoregionally advanced NPC.

Full description

Data of patients firstly diagnosed NPC from Jan 1st, 1998 to Jun 1st, 2013 were downloaded from Department of Medical Information, Sun Yat-Sen University Cancer Center. Patients were excluded if they had stage I or II disease, no complete medical records, received treatment previously, or without concurrent chemoradiotherapy. Follow-up data is updated on October 1st, 2015.The propensity score-matching (PSM) method was adopted to balance observed covariates between both groups. Propensity scores reflect the conditional probability that is intended to be uniform between patients received CCRT and IC+CCRT based on their baseline characteristics. Matching was performed based on nearest-neighbor matching, and comparing between CCRT and IC+CCRT patients were matched within their respective risk groups.

Enrollment: 12,206 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

1. firstly diagnosed NPC in SYSUCC from Jan 1st, 1998 to Jun 1st, 2013;
2. with complete medical records;
3. received radical RT.

Exclusion criteria

1. distant metastasis patients at first diagnosis,
2. recurrent patients,
3. not finishing radiotherapy, missing medical data, death during RT, stage I or II disease,received treatment previously, or without concurrent chemoradiotherapy were excluded.

Trial design

12,206 participants in 2 patient groups

CCRT group

Description:

Locoregionally advanced nasopharyngeal carcinoma patients received concurrent chemoradiotherapy

Treatment:

Other: CCRT

IC+CCRT group

Description:

Locoregionally advanced nasopharyngeal carcinoma patients received induction chemotherapy and concurrent chemoradiotherapy

Treatment:

Other: IC+CCRT