Prevention of Radiation Pneumonitis After Three-Dimensional Conformal Radiation Therapy (3D-CRT) in Patients With Non-Small-Cell Lung Cancer
The purpose of this study is to evaluate the interest of breath holding for the prevention of radiation pneumonitis following conformal radiation therapy.
Eligible patients will be randomly assigned in a 2-arm trial to free breathing or breath holding during conformal radiation.
The primary objective of the study is to establish the efficacy of breath holding, compared to free breathing, in the prevention of early pulmonary toxicity following conformal radiation.
Several departments of radiotherapy, many pneumology units and two basic and applied research laboratories take part in this multicentric study.
The number of patients required to demonstrate a reduction in radiation pneumonitis from 45 % to 22.5 %, assuming an alpha risk of 5% in a two-sided test and 95% power, is 240 (120 per arm). With a planned accrual of 7 patients per month, it is estimated that the inclusion period should be approximately 3 years.
The secondary objectives are:
- Validation of the Lent-Soma toxicity scale by comparison to the RTOG scale,
- Response rate at different times: week 6-8, 1 year and 2 years after the end of irradiation,
- Progression-free survival rate at 1 year and 2 years after the end of irradiation
- Confirmation of the predictive value of serum cytokine levels (IL-6 and IL-10) during irradiation for the occurrence of early radiation toxicity, and analysis of the correlation between these serum levels at inclusion and the expression polymorphism of candidate genes.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Carcinoma, Non-Small-Cell Lung
Free breathing, Breath holding
Centre Oscar Lambret
Centre Leon Berard
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00349102
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Malignant neoplasm arising from the epithelium of the BRONCHI. It represents a large group of epithelial lung malignancies which can be divided into two clinical groups: SMALL CELL LUNG CANCER and NON-SMALL-CELL LUNG CARCINOMA.
Small Cell Lung Carcinoma
A form of highly malignant lung cancer that is composed of small ovoid cells (SMALL CELL CARCINOMA).
Carcinoma, Non-small-cell Lung
A heterogeneous aggregate of at least three distinct histological types of lung cancer, including SQUAMOUS CELL CARCINOMA; ADENOCARCINOMA; and LARGE CELL CARCINOMA. They are dealt with collectively because of their shared treatment strategy.
Carcinoma, Small Cell
An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with scanty neoplasm. It is characterized by a dominant, deeply basophilic nucleus, and absent or indistinct nucleoli. (From Stedman, 25th ed; Holland et al., Cancer Medicine, 3d ed, p1286-7)
Carcinoma, Lewis Lung
A carcinoma discovered by Dr. Margaret R. Lewis of the Wistar Institute in 1951. This tumor originated spontaneously as a carcinoma of the lung of a C57BL mouse. The tumor does not appear to be grossly hemorrhagic and the majority of the tumor tissue is a semifirm homogeneous mass. (From Cancer Chemother Rep 2 1972 Nov;(3)1:325) It is also called 3LL and LLC and is used as a transplantable malignancy.
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