Improving the Success Rate for Thoracic Radiotherapy Through Specific Cardiac Substructure Dosimetry: Location Matters. (LOCATION MATTERS) (LM)

"Improving the Success Rate for Thoracic Radiotherapy Through Specific Cardiac Substructure Dosimetry: Location Matters - a Prospective Study"

The prospective study LOCATION MATTERS aims to investigate the radiation-induced damage to the heart and the cardiovascular system in patients treated with thoracic radiotherapy. Patients enrolled in the study will complete a set of extensive measures at the baseline, end of RT, and 9 months after treatment. Ultrasound exams, CT scans, pulmonary tests and wearable devices will assess functional and morphological parameters and the association with their variation and the dose delivered to the heart substructures and to the normal lung.

Study Overview

Status

Recruiting

Detailed Description

A cohort of locally advanced lung cancer patients treated with RT will be enrolled at Fondazione IRCCS Istituto dei Tumori. Comorbidities and cardiovascular risk factors will be recorded for all the patients. Heart substructures will be automatically contoured on each patient to provide details on the dose distribution.

The investigators will plan an extensive set of cardiac tests before, at the end of RT and 8 months after treatment (to assess cardiac remodelling and pt recovery). It will include an electrocardiogram, echo cardio, spirometry, blood circulating biomarkers (Troponin and Natriuretic peptide tests) and cardiac calcium score from CT. In addition, the researchers will include a set of measures by the use of a vascular ultrasound machine. This machine will allow the investigation of subclinical vascular organ damage indicators, including carotid distention and intima-media thickness (descriptor of the carotid inflammatory state), through a simultaneous and automatic procedure from raw imaging data. This guarantees the extraction of highly reproducible and operator-independent features. Finally, the project will provide smartwatch devices to the patients aiming to get longitudinal information on heart rate, breathe per minute, stress level, Pulse Ox and recovery time after customised exercises.

The study's aim is to associate the most "radiosensitive" functional parameters or biomarkers (i.e. the more prone to vary after RT) with the dose delivered to the HSs. First, researchers will analyze the variations of the parameters in patients with doses above and below the identified constraints from the literature. Second, investigators will test whether a dose relationship model can continuously describe the changes for the parameters with statistically significant differences. The primary focus will be the comprehension of the dose response for morphological and functional parameters that are altered chronically, i.e. with more compromised values at the 1-year measurement.

For this study, the investigators estimate to enrol 150 lung cancer patients in 3 years.

Information on the OS and MACEs will be registered during the clinical standard FU.

Researchers expect to fulfil an FU rate of 90% two years after RT completion. Registering MACEs during the FU time will allow to perform a first direct comparison of the competing part of Task 1.3.

Study Type

Observational

Enrollment (Estimated)

150

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

The study population will include consecutive NSCLC patients with locally advanced disease treated with RT at Fondazione IRCCS Istituto Nazionale dei Tumori di Milano

Description

Inclusion Criteria:

  • Patients with NSCLC
  • Patients with locally advanced disease (Stage 3)
  • Patients treated with RT at Fondazione IRCCS Istituto Nazionale dei Tumori

Exclusion Criteria:

  • Previous thoracic radiotherapy
  • Previous heart surgery

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Variation in eco-cardio and eco-vascular parameters after thoracic radiotherapy
Time Frame: Baseline - End RT - 9 months after RT completion
A set of ultrasound parameters will be normalised to the individual patient value at the baseline. We will evaluate an acute reaction (end of RT) and a late reaction/recovery assessment at 9 months after RT
Baseline - End RT - 9 months after RT completion

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Major adverse cardiac events post-RT
Time Frame: Baseline - End RT - 9 months after RT completion
MACEs will be evaluated and recorded during patient FU as a no/yes variable
Baseline - End RT - 9 months after RT completion
Increase in cardiac calcification after RT
Time Frame: Baseline - End RT - 9 months after RT completion
Calcification will be assessed through automatic software able to detect calcifications in the heart based on CT scans. Values will be compared with the baseline
Baseline - End RT - 9 months after RT completion

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Longitudinal variation of cardiopulmonary functional parameters
Time Frame: Daily evaluations from baseline to 9 months of FU
A set of parameters will be assessed through the use of a smartwatch device. Variation with time will be compared to identify risk factors associated to patterns in time evolution.
Daily evaluations from baseline to 9 months of FU
Texture variation in the heart substructures
Time Frame: Baseline - End RT - 9 months after RT completion
Quantitative image analysis will be performed on protocol CT scans to assess morphology and tissue composition
Baseline - End RT - 9 months after RT completion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 29, 2024

Primary Completion (Estimated)

March 29, 2029

Study Completion (Estimated)

March 29, 2029

Study Registration Dates

First Submitted

April 8, 2024

First Submitted That Met QC Criteria

April 8, 2024

First Posted (Actual)

April 12, 2024

Study Record Updates

Last Update Posted (Estimated)

April 15, 2024

Last Update Submitted That Met QC Criteria

April 12, 2024

Last Verified

November 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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