Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-24 @ 3:06 PM
Ignite Modification Date:
2025-12-24 @ 3:06 PM
NCT ID:
NCT06780059
Brief Summary:
Breast phyllodes tumors (PT) are rare fibroepithelial neoplasms originating from stromal tissue and account for less than 1% of all breast tumors. The World Health Organization (WHO) classifies PT into benign, borderline, and malignant subtypes based on pathological features such as mitotic activity, cellular atypia, tumor margin invasion, and stromal composition 1. The presence of malignant heterologous elements characterizes the tumor as malignant 2. Surgery is the primary treatment. However, even after R0 resection, borderline phyllodes tumors (BoPT) and malignant phyllodes tumors (MPT) patients remain face a high risk of local recurrence, with rates of 15%-20% and 25%-30%, respectively. Moreover, metastases occur almost merely in MPT, with a distant metastasis rate reaching 22%.
Adjuvant radiotherapy has attracted attention for its potential to improve local control and reduce recurrence, but the role after R0 resection in PT patients remains unclear. Radiotherapy significantly reduces local recurrence rates in BoPT and MPT but shows no substantial benefit in benign cases. However, a meta-analysis by Yu et al. found that this effect is limited to MPT. Additionally, the effect of radiotherapy on survival rates in PT remains controversial. Most existing studies are retrospective and face limitations such as small sample sizes. The rarity of PT and conflicting evidence of impact of radiotherapy necessitate further study. While prospective trials are difficult due to limited cases, well-designed retrospective studies can offer valuable insights. In this study, the investigators also analyzed prognostic factors and identified subgroups to provide a clinical reference for the application of postoperative radiotherapy in BoPT and MPT patients.
Study:
NCT06780059
Study Brief:
Protocol Section:
NCT06780059