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Radiation Therapy Using Helical Tomotherapy IMRT for Head and Neck Cancer

2014-07-23 21:30:20 | BioPortfolio

Summary

Historically, patients with stage III and IV head and neck cancer have been treated with surgery and/or radiation therapy. Based on the results of recent clinical trials, in patients not able to undergo surgery, chemotherapy with radiation therapy has been adopted as the current standard of care. The chemo-radiation approach, however, entails a significant increase in treatment-related toxicity, limiting the extent to which this treatment can be offered to patients. In this trial, the ability of a new form of radiation therapy delivery called IMRT will be evaluated for its ability to reduce the amount of radiation-induced toxicity.

Description

The mechanisms of action to explain the radiation-induced toxic effects resulting from the more aggressive radiation therapy treatments of head and neck cancer include the additive and synergistic increase in mucositis from the combination of chemotherapy and radiotherapy. The severe toxicity associated with more aggressive radiation therapy treatments for locoregional head and neck cancer limits the extent to which these treatments can be offered since many patients present with nutritional deficiencies and consequent general debility. Intensity Modulated Radiotherapy (IMRT) is a technology has the potential for exquisite dose painting and structuring in such a manner that it can permit exclusion of normal tissues and sensitive structures from the high dose radiation volume without compromising primary tumor or nodal target coverage. In this phase I/II feasibility trial, radical radiotherapy will be delivered using Helical Tomotherapy Intensity Modulated Radiotherapy (HT-IMRT) to a dose of 66-70 Gy to involved areas and to at least 50 Gy to un-involved sites, treated prophylactically. It is hypothesized that the pattern of failure and toxicity profiles of patients treated with helical tomotherapy will demonstrate the greater efficacy of helical tomotherapy, as compared with conventional radiotherapy, in the treatment of cancers of the head and neck.

Study Design

Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Cancer

Intervention

Helical tomotherapy IMRT

Location

The Ottawa Hospital Regional Cancer Centre
Ottawa
Ontario
Canada
K1H 8L6

Status

Recruiting

Source

Ottawa Hospital Research Institute

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T21:30:20-0400

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PubMed Articles [13645 Associated PubMed Articles listed on BioPortfolio]

Locoregional Control and Toxicity in Head and Neck Carcinoma Patients following Helical Tomotherapy-Delivered Intensity-Modulated Radiation Therapy Compared with 3D-CRT Data.

To assess the feasibility and efficacy of intensity-modulated radiation implemented with helical tomotherapy image-guided with daily megavoltage computed tomography for head and neck cancer.

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Medical and Biotech [MESH] Definitions

A cancer registry mandated under the National Cancer Act of 1971 to operate and maintain a population-based cancer reporting system, reporting periodically estimates of cancer incidence and mortality in the United States. The Surveillance, Epidemiology, and End Results (SEER) Program is a continuing project of the National Cancer Institute of the National Institutes of Health. Among its goals, in addition to assembling and reporting cancer statistics, are the monitoring of annual cancer incident trends and the promoting of studies designed to identify factors amenable to cancer control interventions. (From National Cancer Institute, NIH Publication No. 91-3074, October 1990)

A family of non-fibrillar collagens that interact with FIBRILLAR COLLAGENS. They contain short triple helical domains interrupted by short non-helical domains and do not form into collagen fibrils.

A deoxycytidine derivative and fluorouracil PRODRUG that is used as an ANTINEOPLASTIC ANTIMETABOLITE in the treatment of COLON CANCER; BREAST CANCER and GASTRIC CANCER.

That portion of the stomach remaining after gastric surgery, usually gastrectomy or gastroenterostomy for cancer of the stomach or peptic ulcer. It is a common site of cancer referred to as stump cancer or carcinoma of the gastric stump.

A voluntary organization concerned with the prevention and treatment of cancer through education and research.

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