TOxicity After Radiotherapy in breAst CancEr Survivors (ThORACeS) - A Retrospective Cohort Study
THORACES
1 other identifier
observational
706
1 country
1
Brief Summary
Rationale: The number of breast cancer (BC) patients at risk for long-term radiation-induced health problems is increasing, as their outcome is improving due to intensified treatment regimens, such as new systemic approaches and radiotherapy. Therefore, identifying BC survivors with the highest risk for radiation-induced health problems is crucial for developing strategies for primary and secondary prevention, which may contribute to healthy ageing.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Sep 2014
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
September 1, 2014
CompletedFirst Submitted
Initial submission to the registry
May 19, 2015
CompletedFirst Posted
Study publicly available on registry
June 15, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
September 1, 2015
CompletedFebruary 28, 2024
February 1, 2024
1 year
May 19, 2015
February 26, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (4)
Number of participants with cardiovascular events in relation with the received heart radiation dose
At time of data collection: minimum at 7 years and maximum at 10 years after completion of radiation therapy
Number of participants with secondary malignancies in relation with the received radiation dose
At time of data collection: minimum at 7 years and maximum at 10 years after completion of radiation therapy
Number of participants with radiation pneumonitis in relation with the received lung radiation dose
At time of data collection: minimum at 7 years and maximum at 10 years after completion of radiation therapy
Number of participants with hypothyroidism in relation with the received radiation dose
At time of data collection: minimum at 7 years and maximum at 10 years after completion of radiation therapy
Interventions
Eligibility Criteria
Adult, female patients with stage I-III breast cancer, who were treated with breast-sparing surgery followed by radiation treatment.
You may qualify if:
- Female gender.
- Treated for stage I-III invasive adenocarcinoma of the breast or ductal carcinoma in situ (DCIS).
- Treated with curative breast-conserving surgery followed by radiotherapy of the breast, with or without irradiation of the regional lymph nodes.
- Start of radiotherapy is between 01-01-2005 and 31-12-2008.
- Available planning CT scan and dose distribution data of original breast cancer irradiation.
You may not qualify if:
- Any prior malignancy other than non-melanoma skin cancer or breast cancer.
- Prior radiotherapy treatments in the thoracic region.
- Treated with neoadjuvant chemotherapy.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University Medical Center Groningen
Groningen, 9700RB, Netherlands
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 19, 2015
First Posted
June 15, 2015
Study Start
September 1, 2014
Primary Completion
September 1, 2015
Study Completion
September 1, 2015
Last Updated
February 28, 2024
Record last verified: 2024-02