Reduced Target Delineation and Radiation Doses Chemoradiotherapy for Patients With Locoregionally Advanced Nasopharyngeal Carcinoma

Sequential Chemoradiotherapy With Reduced Target Delineation and Radiation Doses During Radiotherapy for Patients With Locoregionally Advanced Nasopharyngeal Carcinoma

To determine the efficacy and safety of sequential chemoradiotherapy with regimen of docetaxel, cisplatin and fluorouracil and reduced target delineation and radiation doses IMRT for patients with locoregionally advanced nasopharyngeal carcinoma

Study Overview

• Status: Completed
• Conditions: Nasopharyngeal Carcinoma
• Intervention / Treatment: Radiation: Reduced Target Delineation and Radiation Doses

Detailed Description

Although concurrent chemoradiation is the standard treatment modality for locally advanced nasopharyngeal carcinoma (NPC), high incidences of distant metastases and severe treatment related toxicities have become an obstacle to be overcome. Besides, a common problem in locally advanced NPC is the narrow gap between the tumor and critical normal structures, which makes dose optimization difficult. Considering that significant tumor shrinkage may occur during induction chemotherapy, and incidences of distant metastases may be reduced by adjuvant chemotherapy, this study was designed to explore the efficacy and safety of sequential chemoradiotherapy with regimen of docetaxel, cisplatin and fluorouracil and reduced target delineation and radiation doses IMRT for patients with locoregionally advanced NPC.

• Study Type: Interventional
• Enrollment (Actual): 118
• Phase: Phase 2

Contacts and Locations

Study Locations

• China
  • Shanghai
    • Shanghai, Shanghai, China, 200032
      • Fudan University Shanghai Cancer Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 70 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. Histopathologically proven nasopharyngeal carcinoma (WHO type 2 or 3)
2. Stage Ⅲ-ⅣB disease (AJCC/UICC 2010)
3. KPS more than 70
4. Life expectancy of more than 6 months
5. Signed written informed consent
6. Adequate organ function including the following:

Absolute neutrophil count (ANC) >= 1.5 * 109/l Platelets count >= 100 * 109/l Hemoglobin >= 10 g/dl AST and ALT <= 2.5 times institutional upper limit of normal (ULN) Total bilirubin <= 1.5 times institutional ULN Creatinine clearance >= 50 ml/min Serum creatine <= 1 times ULN

Exclusion Criteria:

1. Evidence of distant metastasis
2. Prior chemotherapy or anti-cancer biologic therapy for any type of cancer, or prior radiotherapy to the head and neck region
3. Other previous or concomitant cancer, except for in situ cervical cancer and cutaneous basal cell carcinoma
4. Pregnant or breast-feeding females, or females and males of childbearing potential not taking adequate contraceptive measures
5. Presence of an uncontrolled concomitant illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, or cardiac arrhythmia

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: Reduced Target Delineation and Radiation Doses; All patients were assigned to receive induction chemotherapy (IC) followed by IMRT with adjuvant chemotherapy (AC). IMRT was administered 2 weeks after IC, and AC was administered 1 month after IMRT. IC or AC (TPF regimen) comprised docetaxel (60 mg/m2/day, day 1), cisplatin (25 mg/m2/day, days 1-3), and 5-fluorouracil (500 mg/m2/day with a 120-h infusion) administered once every 3 weeks for two cycles. During radiotherapy, involved retropharyngeal lymph nodes and intracavity lesions of the primary tumor were delineated according to the post-IC volume, whereas the remainder of the involved tissues (eg, pterygopalatine fossa) of the primary tumor were delineated according to the pre-IC volume of the primary tumor as shown by MRI. Post-IC volumes of involved neck lymph nodes were used for delineation. The prescribed dose was 66 Gy to tumors above the slices of skull base or below the orapharynx with less than 5 mm retropharyngeal lymph nodes, or 70.4 Gy to tumors in other slices.

Radiation: Reduced Target Delineation and Radiation Doses; The target volumes were delineated according to the treatment protocol defined as follows: the GTV of the primary tumor (GTV-P) included retropharyngeal lymph nodes, considering the common phenomena of integration, and the rest involved lymph nodes that were defined as GTV-N. For the GTV-P, involved retropharyngeal lymph nodes and intracavity lesions were delineated according to the post-IC volume, whereas the remainder of the involved tissues (eg, pterygopalatine fossa) were delineated according to the pre-IC volume of the primary lesion as shown by MRI. Post-IC volumes of involved neck lymph nodes were used for GTV-N delineation. The prescribed dose was 66 Gy to tumors above the slices of skull base or below the orapharynx with less than 5 mm retropharyngeal lymph nodes, or 70.4 Gy to tumors in other slices.; Other Names: Drug: TPF regimen comprised docetaxel (60 mg/m2/day, day 1), cisplatin (25 mg/m2/day, days 1-3), and 5-fluorouracil (500 mg/m2/day with a 120-h infusion)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Progression-free survival	The time from date of treatment until date of first documented disease progression or death from any cause, assessed up to 5 years.	up to 5 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Local recurrence-free survival	The time from date of treatment until date of first documented disease recurrence at a local site, assessed up to 5 years.	up to 5 years
Regional recurrence-free survival	The time from date of treatment until date of first documented disease recurrence at a regional site, assessed up to 5 years.	up to 5 years
Overall survival	The time from date of treatment until date of death due to any cause, assessed up to 5 years.	up to 5 years
Distant metastasis-free survival	The time from date of treatment until date of first documented distant metastasis, assessed up to 5 years.	up to 5 years
Locoregional failure patterns	The failures were categorized as occurring inside or outside the high dose target volume, depending on the location of Vrecur: "in field" if 95% of Vrecur was within the 95% isodose; "marginal" if 20% to 95% of Vrecur was within the 95% isodose, or "outside" if less than 20% of Vrecur was inside the 95% isodose.	up to 5 years
Number of participants with acute toxicities	Number of participants with acute toxicities occurred during the chemoradiotherapy according to CTCAE4.0	during treatment
Number of participants with late toxicities	Number of participants with late toxicities occurred from 3 months after completion of radiotherapy to last follow-up visit according to Radiation Therapy Oncology Group radiation morbidity scoring criteria.	up to 5 years
Changes of tumor volume	Changes of tumor volume before and after induction chemotherapy	2 weeks after completion of induction chemotherapy
Relationship between treatment failure and dose received by target	Relationship between treatment failure and dose received by target	up to 5 years

Collaborators and Investigators

• Sponsor: Xiayun He, MD

Publications and helpful links

General Publications

• Xue F, Ou D, Ou X, Zhou X, Hu C, He X. Long-term results of the phase II dose and volume de-escalation trial for locoregionally advanced nasopharyngeal carcinoma. Oral Oncol. 2022 Nov;134:106139. doi: 10.1016/j.oraloncology.2022.106139. Epub 2022 Sep 27.

Study record dates

Study Major Dates

• Study Start (Actual): January 1, 2010
• Primary Completion (Actual): April 1, 2019
• Study Completion (Actual): April 1, 2019

Study Registration Dates

• First Submitted: December 20, 2017
• First Submitted That Met QC Criteria: December 26, 2017
• First Posted (Actual): January 3, 2018

Study Record Updates

• Last Update Posted (Actual): December 16, 2019
• Last Update Submitted That Met QC Criteria: December 13, 2019
• Last Verified: December 1, 2019

More Information

Terms related to this study

• Keywords: Nasopharyngeal Carcinoma; Reduced Target Delineation and Radiation Doses; Sequential chemoradiotherapy
• 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; Physiological Effects of Drugs; Molecular Mechanisms of Pharmacological Action; Antimetabolites, Antineoplastic; Antimetabolites; Antineoplastic Agents; Immunosuppressive Agents; Immunologic Factors; Tubulin Modulators; Antimitotic Agents; Mitosis Modulators; Docetaxel; Cisplatin; Fluorouracil
• Other Study ID Numbers: TPF-Shanghai

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No