PORTEC-4a: Molecular Profile-based Versus Standard Adjuvant Radiotherapy in Endometrial Cancer (PORTEC-4a)
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- STATUS
- Recruiting
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- End date
- Dec 28, 2028
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- participants needed
- 550
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- sponsor
- Leiden University Medical Center
Summary
This is prospective, multicenter, randomised phase III trial among women with endometrial cancer with high-intermediate risk features to investigate the role of an integrated clinicopathological and molecular risk profile to determine if participants should receive no adjuvant therapy, vaginal brachytherapy or external beam radiotherapy based on a favourable, intermediate or unfavourable profile as compared to standard adjuvant vaginal brachytherapy.
Description
Adjuvant therapy for women with endometrial cancer has increasingly been tailored to prognostic factors to prevent overtreatment and select those women for adjuvant treatment who will have a clinically relevant reduction of the risk of relapse by the adjuvant treatment. Risk profiles have traditionally been based on clinicopathological factors such as age, stage, grade, LVSI and depth of invasion. Newer, both molecular-genetic (the cancer genome atlas subgroups) or immunohistochemistry-based (L1-CAM) risk factors have become available which are strongly related to outcomes and risk of cancer spread. In a comprehensive analysis of the PORTEC-1 and-2 biobank an integrated clinicopathological and molecular risk profile was determined which separated the current high-intermediate risk group of endometrial cancer in 3 separate groups (favourable, intermediate or unfavourable) with clearly separated outcomes, which is now prospectively tested in the clinic to determine adjuvant treatment. This is the first randomised trial using the molecular risk factors to assign adjuvant treatment for women with stage I-II high-intermediate risk endometrial cancer.
Details
| Condition | Endometrial Cancer Stage I, Endometrial Cancer Stage II |
|---|---|
| Treatment | Observation, External Beam Radiotherapy, Vaginal Brachytherapy |
| Clinical Study Identifier | NCT03469674 |
| Sponsor | Leiden University Medical Center |
| Last Modified on | 1 March 2022 |
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