Pulmonary Hypertension Clinical Trial
Official title:
Exploratory Evaluation of Simultaneous Cardiac PET/MR, Metabolomic Markers and Circulating DNA as Possible Prognostic Markers in Identifying Patients Developing Transient or Permanent Cardiopulmonary Dysfunctions After Radiotherapy
NCT number | NCT04901884 |
Other study ID # | 18-5879 |
Secondary ID | |
Status | Recruiting |
Phase | N/A |
First received | |
Last updated | |
Start date | June 1, 2021 |
Est. completion date | June 2024 |
Radiotherapy (RT) is a well-known and established therapy or adjuvant therapy for the treatment of thoracic cancer It uses a high energy radiation from x-rays, gamma rays and other charged particles that assist in damaging the cancer DNA. PET/MR as imaging biomarkers for cardiopulmonary dysfunction with a focus on Pulmonary hypertension (PH). Despite the measures taken to reduce the total radiation dose and to limit the radiation to normal tissues, there is evidence of transient or permanent radiotherapy induced myocardial and pulmonary dysfunction leading to PH in patients who receive radiotherapy above a certain threshold of received dose. To be able to Demonstrate correlation of combined PET/MR and plasma metabolomics markers in patients at risk of developing cardiopulmonary disfunction after RT.
Status | Recruiting |
Enrollment | 40 |
Est. completion date | June 2024 |
Est. primary completion date | June 2024 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Age =18 years - Biopsy or otherwise clinically proven thoracic malignant mass which is intended to be treated with radio(chemo)therapy - Intention to treat with radio(chemo)therapy with incidental cardiac irradiation of at least 25Gy. - A negative urine or serum pregnancy test within the two week interval immediately prior to imaging, in women of child-bearing age. - Ability to provide written informed consent to participate in the study (for all components of the trial: imaging with cardiac PET/MR, blood sampling for plasma metabolomics and circulating DNA). Exclusion Criteria: - Contraindication for MR as per current institutional guidelines. - Contraindication for Gadolinium injection as per current institutional guidelines. - Inability to lie supine for at least 45 minutes. - Any patient who is pregnant or breastfeeding. - Any patient with known hypersensitivity to 18F-FDG. |
Country | Name | City | State |
---|---|---|---|
Canada | University Health Network | Toronto | Ontario |
Lead Sponsor | Collaborator |
---|---|
University Health Network, Toronto |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change of FDG uptake of heart | FDG uptake of the left and right ventricles of heart will be measured and compared in PETMRI scans | at 4 weeks prior to radiotherapy, and at 6-10 weeks after completion of radiotherapy | |
Primary | Change of FDG uptake of lungs | FDG uptake of left and right ratios within the lungs in PETMRI scans | at 4 weeks prior to radiotherapy, and at 6-10 weeks after completion of radiotherapy | |
Primary | Change of the heart function | MRI of ventricular volumes in PETMRI scans | at 4 weeks prior to radiotherapy, and at 6-10 weeks after completion of radiotherapy | |
Primary | Change of the lung perfusion | Percentage of the perfused/ventilated lung segments will be evaluated and compared pre and post therapy by SPECT scans | before radiotherapy and up to 16 weeks after completion of radiotherapy |
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