Clinical trial · Observational
Monitoring Radiobiological Effects in Thoracic Malignancy by Using Myocardial Perfusion Scan
Monitoring Radiobiological Effects in Thoracic Malignancy by Using Myocardial Perfusion Scan: Correlation Between Radiotherapy Dose Distribution, Myocardial Perfusion, Cardiac Function, Serum Biomarkers and Clinical Prognosis.
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Background: Chemoradiation is an important treatment strategy of locally advanced inoperable or unresectable disease. Radiation dose is an independent predictor of a pathological response. In addition, chemotherapy has further impact on the aspect of outcome. Improvements in local treatment delivery are needed to facilitate dose escalation and to minimize toxicity. There have been sequential improvements in tumor localization, radiation planning and delivery over the years. Helical tomotherapy nowadays provides the most precise data on radiotherapy (RT) dose delivered to thoracic malignancies, and allows greater sparing of the heart from doses associated with increased complications. However, heart disease shows a wide spectrum of pathologies, and multiple risk factors related. The damage of the myocytes may lead to not only myocardial perfusion defects, but also in functional deterioration, or even in biomarkers. Since the impact of radiation-induced heart injury in patients with thoracic malignancies (including esophageal cancer, lung cancer, et al) is poorly documented, we try to delineate of RT-related cardiac effects and clinical impacts. Objective: This study aims to investigate the correlation of post-tomotherapy cardiovascular effects with myocardial perfusion and cardiac functional studies. Methods: The study plans to enroll thoracic cancer patients who will undergo local RT after complete staging. Patients will receive global risk scoring assessment (Framingham Risk Score, FRS), blood sampling for basic biochemistry, inflammatory biomarker, and myocardial perfusion image (MPI) at the time points of before and after RT. The results of MPI will be analyzed in qualitative visual interpretation of perfusion patterns, and functional quantitative data for cardiac functional parameters as well. The patients will be regular followed-up in CV OPD, following clinical judgement and guideline. The association between baseline and follow-up MPI, biomarker and clinical presentation will be further investigated. Expected results: We will obtain myocardial perfusion visual qualitative data in patients who received locoregional RT, respectively. These results will help in the understanding of pathophysiology, clinical management and follow-up of suspected RT-related heart disease.
Conditions
Conditions (2)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Late Effect of Radiation | — | UNRESOLVED | — |
| Thoracic Neoplasms | Thoracic Neoplasm | ONTOLOGY_EXACT | 0.98 |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Thallium-201 Myocardial Perfusion Study | Radiation | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- label
- Radiation therapy
- description
- Thoracic cancer patient s/p scheduled RT will be arranged to undergo Thallium-201 Myocardial Perfusion Study. The scheduled RT will be arranged by clinical judgments of radiation-oncologists. All of the patients will receive myocardial SPECT before and after the scheduled RT.
- interventionNames
- Radiation: Thallium-201 Myocardial Perfusion Study
Primary outcomes (1)
- measure
- To investigate the correlation of post-RT cardiovascular effects with myocardial Tl-201 myocardial perfusion images
- timeFrame
- July, 2014 (after 12 months of baseline study).
- description
- By literature reviewing, cardiovascular functional status in patients received helical tomography has not been fully investigated yet. And the post-therapeutic heart disease tends to show a wide spectrum of pathologies and multiple risk factors. We will monitor risk factors of underlying disease, family history, metabolism, biomarkers, myocardial perfusion defect patterns, and cardiac functional parameters, in order to delineation of RT-related effects and clinical prognosis.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 20 Years
- Maximum age
- 80 Years
Show eligibility criteria text
Inclusion Criteria: * Patients with thoracic malignancy who scheduled further locoregional RT. * Aged 20-80 years old. * Classified as intermediate to high future CV risk clinically. Exclusion Criteria: * Pre-existing cardiac disease, such as prior myocardial infarction, documented CAD, congestive heart failure. * Pregnancy. * Any medical contraindication of stress cardiac SPECT.
References
Publications (0)
Data not yet available