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Clinical Trial Summary

This is a monocentric prospective study of radiotherapy using accelerated hypofractionation with Tomotherapy in Malignant Pleural Mesothelioma (MPM) patients after pleurectomy / decortication (P / D) or biopsy. The treatment will be delivered using Tomotherapy, that allows to adopt dose accelerated hypofraction criteria. Treatment duration is 5 consecutive days.


Clinical Trial Description

The role of radiation therapy remains to be defined in unresected MPM or after P/D. For the latter, local control remains the primary objective but radiotherapy (RT) is a challenge because of the risk of pneumonia in the intact lung. There are no specific clinical data to support the use of adjuvant radiation therapy after P/D or definitive radiation therapy after biopsy-based diagnosis for patients not amenable to surgery. However, recent publications on Intensity Modulated Radiotherapy (IMRT) and conventional fractionation after P/D or biopsy have shown the feasibility and acceptable toxicity profile of the treatment. The investigators submitted a retrospective analysis of accelerated hypofractionated Intensity modulated arc therapy (IMAT) using TomoTherapy in MPM following P/D or diagnostic biopsy. In the investigators experience of MPM, treatment of the intact lung with pleural IMAT using helical Tomotherapy is a safe and feasible option with an acceptable lung toxicity profile. The results obtained in terms of toxicity were encouraging. In fact, the investigators only observed one case of G3 pneumonia, and the patient in question is still alive and off oxygen therapy. Patient compliance with this short-course treatment was also very good. Overall, the investigators found that accelerated hypofractionation with IMAT was feasible at the dose delivered and had an acceptable toxicity profile. So the investigators want to propose this protocol for treatment of MPM in intact lung to improve local control. In patients with malignant pleural mesothelioma who underwent pleurectomy / decortications (P/D) or only diagnostic biopsy, it is difficult to deliver a tumoricidal dose of radiation to the pleura due to the presence of the ipsilateral lung. In recent years, the investigators have implemented a technique for irradiation of the pleura in intact lung, using accelerated hypofractionation with Tomotherapy in an attempt to reduce as far as possible, the dose to the ipsilateral lung. The aim of the treatment was palliation. The investigators analyzed the data of 36 patients with MPM, with a long follow-up without recording death cases related to radiation treatment or radiation pneumonitis grade 4. In view of these data, the aim of this study is to increase the dose of treatment in patients suffering from MPM after P/D or biopsy. The study will evaluate the feasibility of the treatment through the study of pulmonary acute and late toxicity; The treatment will be delivered using Tomotherapy that allows to adopt dose accelerated hypofraction criteria. Treatment duration is 5 consecutive days. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03269227
Study type Interventional
Source Istituto Scientifico Romagnolo per lo Studio e la cura dei Tumori
Contact Oriana Nanni
Phone +39 0543 739266
Email oriana.nanni@irst.emr.it
Status Recruiting
Phase N/A
Start date August 14, 2017
Completion date December 2023

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