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Clinical Trial Summary

This is a prospective, non-randomized, single arm, single institution phase II trial to evaluate the safety and effectiveness of stereoractic ablative radiotherapy (SABR) in selected unresectable newly diagnosed and recurrent locally advanced (LA) non-small cell lung cancer (NSCLC) patients unfit for concurrent chemo-radiotherapy (ChT-RT). Patients unfit for concurrent ChT-RT but fit for chemotherapy will be enrolled to sequential ChT-SABR; patients unfit for ChT will be enrolled to exclusive SABR.


Clinical Trial Description

Current standard of care for fit patients with unresectable LA-NSCLC is concurrent chemo-radiotherapy (ChT-RT) which consists of 6 weeks of radiation and chemotherapy. Unfortunately many LA NSCLC patients, particularly the elderly, are unfit for concurrent ChT-RT because of their poor performance status and co-morbidities. Sequential ChT-RT and/or exclusive RT are options available for patients not suitable for concomitant approaches. Median progression-free survival among patients receiving concurrent ChT-RT is poor and no more than 15% of cases are alive at 5 years. This study is evaluating SABR in unresectable LA-NSCLC. Hypofractionated regimens of RT have emerged as a possible approach in LA-NSCLC, not only because prolonged treatments may discourage a proportion of elderly patients (20-30%) who are forced to give up treatment due to distance from the Radiotherapy Centre, but also for radiobiological reasons. Recent technological advances in RT, first of all stereotactic body radiotherapy (SBRT), have made hypofractionation widely applicable with the possibility to administer few (5 to 8) fractions of high external beam doses to the tumor, sparing the surrounding healthy tissues by a rapid fall of dose outside the target. LA-NSCLC patients will be discussed at the multidisciplinary lung cancer group and will be judged unfit for surgery and concurrent ChT-RT (e.g. elderly patients and/or large volume of disease and/or cardiovascular comorbidities) but suitable for RT. Neoadjuvant ChT will be evaluated case by case and will be prescribed only in fit patients. Starting from the standard radical conventionally administered dose for LA-NSCLC (equivalent to at least 54-60 Gy in 27-30 fractions), the investigators decided to prescribe an ablative dose of at least 35-40 Gy in 5 fractions. The SABR dose will be increased, case by case, respecting the maximum tolerance dose of healthy structures. The purpose of this study is to explore SABR in the treatment of unresectable LA-NSCLC. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05291780
Study type Interventional
Source Radiotherapy Oncology Centre "Santa Maria" Hospital
Contact
Status Completed
Phase N/A
Start date December 2015
Completion date December 2021

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