Safety and Efficacy Study of Icotinib With Intensity-modulated Radiotherapy in Nasopharyngeal Carcinoma

Summary

Nasopharyngeal carcinoma (NPC) is a prevalent disease in southeast of China. Radiation therapy with or without chemotherapy is a standard therapy for nasopharyngeal cancer. Cytotoxic chemotherapy plays an important role in the curative treatment of advanced NPC. However, concurrent chemoradiotherapy increased significantly local and systemic toxic effects, which may preclude many patients from proceeding with combined therapy. The epidermal growth factor receptor(EGFR) gene is amplified in 40% and EGFR protein is overexpressed in over 80% of NPC. EGFR overexpression is also associated with shorter survival following chemoradiotherapy in locoregionally advanced NPC. And some basic researches have proved that EGFR tyrosine kinase inhibitors(TKIs) could increase the radiosensitivity and reduce the epithelial-mesenchymal transition (EMT) in NPC cell line. Moreover, distant metastases has been the major cause of treatment failure in NPC. Icotinib hydrochloride is a novel oral EGFR TKIs with low mammalian toxicity(made in China). But base on toxic effects of Icotinib, it may increase toxic effects about skin and mucosa in combination therapy with Icotinib and Intensity-modulated Radiotherapy (IMRT). The prospective study will assess the tolerability and efficacy of Icotinib combined with IMRT in patients with NPC. This regimen is of great interest and it has potential to alleviate the adverse effects, improve patient compliance and better therapeutic ratio.

Conditions

• Nasopharyngeal Carcinoma

Interventions

DRUG

Icotinib

Oral Icotinib begins on day 1 and continues until completion of radiotherapy. Phase I:The initial plan is to accrue 6 patients to each dose level (125mg, qd and bid and tid) in each cohort. If one or none of six patients have dose limiting toxicity (DLT), then escalation will proceed. If DLT occurs in two or more patients at a dose level, then escalation will be stopped. The dose level below that at which two of six patients experience a DLT is defined as the maximum-tolerated dose. A minimum of 4 weeks of observation is required after completion of radiation within each Icotinib dose level before accrual to the next level. Phase II:According to the maximum tolerated dose, 50 patients will been recruited.

RADIATION

intensity-modulated radiotherapy

The nasopharyngeal regions and upper neck with IMRT plans will be generated and approved for each patient, whereas the low-neck and supraclavicular regions will be used with a conventional anterior field. A total of 70-76Gy at 2.12-2.3Gy/fraction/d will be given to the GTVnx, the GTVnd will receive 66-70Gy at 2.0-2.12Gy/fraction/d, the CTV1 will receive 60-66Gy at 1.8-2.0Gy/fraction/d, and the CTV2 received 56-60Gy at 1.7-1.8Gy/fraction/d with IMRT. The low-neck and supraclavicular regions will receive 50-60Gy at 2.0Gy/fraction/d with conventional radiotherapy. Target prescription dose and critical structures limit dose are planned according to the RTOG0225 trial.

DRUG

Paclitaxel and Cisplatin

AC that consisted of two cycles of paclitaxel 135 mg/m2 on day 1 plus cisplatin 30 mg/m2 on days 1-3 will start 4 weeks after the end of CRT.

OTHER

Quality of life

The EORTC QLQ-C30 and H\&N35 of the Chinese version, which is obtained from the Quality of Life Unit, EORTC Data Center in Brussels, Belgium, is available and easily completed by our patients are chosen for this study. Patients will complete the questionnaire before treatment and after treatment and one month after treatment and three months after treatment and one year after treatment.

GENETIC

Epidermal growth factor receptor status

EGFR expression and mutation before treatment.

Sponsors & Collaborators

• Taizhou Hospital

  lead OTHER

Principal Investigators

• Haihua Yang, MD. · Department of Radiation Oncology, Taizhou Hospital, Wenzhou Medical College.

• Wei Hu, MD. · Department of Radiation Oncology, Taizhou Hospital, Wenzhou Medical College.

• Wei Wang, BS · Department of Radiation Oncology, Taizhou Hospital, Wenzhou Medical College.

• Chao Zhou, MD. · Department of Radiation Oncology, Taizhou Hospital, Wenzhou Medical College.

Study Design

Allocation

NA

Purpose

TREATMENT

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

18 Years

Max Age

70 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2012-02-29

Primary Completion

2013-02-28

Completion

2015-02-28

Countries

• China

Study Locations