View clinical trials related to Papillary Thyroid Cancer.
Filter by:The objective of this research is to investigate the clinical outcomes of modified surgical techniques such as omitting the cervical linea alba suture in transthoracic endoscopic thyroidectomy. Furthermore, the study requires the collection of normal thyroid tissues, benign and malignant thyroid tumors, and lymph nodes to further clarify the mechanisms associated with the initiation, progression, metastasis, and recurrence of thyroid cancer.
In absence of nodal metastases or aggressive features, thyroid lobectomy (TL) should be preferred over total thyroidectomy (TT) for small unifocal, papillary thyroid carcinoma(PTC). However, occult, despite non-microscopic (>2 mm), nodal metastases may be present inclinically node-negative (cN0) PTC. Among 4216 thyroidectomies for malignancy (2014-2023), 110 (2.6%) TL plus ipsilateral central neck dissections (I-CND) were scheduled for unifocal cT1b/small cT2 (<3 cm) cN0 PTCs. Nodes frozen section examination (FSE) was performed: when positive, completion thyroidectomy (CT) was accomplished during the same procedure. In presence of aggressive pathologic features, CT was suggested within 6 months from index operation.
To evaluate the clinical outcomes of image-guided thermal ablation versus thyroid lobectomy for the treatment of papillary thyroid microcarcinoma
1. To evaluate the clinical outcomes of ultrasound-guided thermal ablation and thyroid surgery for the treatment of papillary thyroid carcinoma; 2. To develop and validate a artificial intelligence model to predict the outcomes of ultrasound-guided thermal ablation in the treatment of papillary thyroid carcinoma;
The incidence of papillary thyroid cancer (PTC) has been on the rise in recent years, and 20%-50% of PTC patients will have lymph node metastasis. Lymph node involvement in PTC patients is usually related to the recurrence of PTC after surgery, and 30% of patients recur without lymph node dissection, with the risk of central cervical lymph node metastasis being the greatest, so it seems to be a good choice to perform lymph node dissection on patients after thyroidectomy, but in fact, there are controversies at home and abroad as to whether to perform lymph node dissection or not. The 2021 Chinese Society of Clinical Oncology (CSCO) guidelines for the diagnosis and treatment of differentiated thyroid cancer state that prophylactic central lymph node dissection (PCND) may increase the incidence of postoperative complications, but due to the high metastatic rate of PTC and the ability of PCND to effectively prevent recurrence and reoperation, countries in the East Asian region perform prophylactic lymph node dissection on almost all patients with PTC. However, for more countries in Europe and the United States, performing PCND has become a non-essential, individualized option. The aim of this study is to collect multifactorial data from more than 1,000 patients who have undergone previous thyroidectomy from 2021 to 2023, and to develop a novel scoring scale that can be used to individualize patients' scores based on a variety of factors prior to surgery, so that patients can be more accurately predicted to have lymph node metastasis and need prophylactic lymph node dissection prior to surgery, and patients who do not need dissection can avoid surgery. For patients who do not need lymph node dissection, complications caused by surgery can be avoided, while for patients who do have lymph node metastasis, recurrence of their cancer can be prevented. This will change the status quo of not being able to accurately determine the actual situation through simple preoperative examination or performing prophylactic lymph node dissection for all PTC patients.
Ideal surgical extent for differentiated thyroid cancer remains unclear. Routine use of molecular analysis in biopsy-proven thyroid cancer could provide important prognostic information to help guide extent of surgery - thyroid lobectomy versus total thyroidectomy. This is a pilot feasibility study for the use of routine molecular analysis in Bethesda V and VI thyroid cancers, with randomization of the intermediate-molecular risk subgroup to thyroid lobectomy and total thyroidectomy. The investigators hypothesize that patients will 1) agree to preoperative molecular analysis, and 2) 50% of intermediate-risk patients will agree to and follow through with randomization. This will be a pilot study for a future randomized controlled trial (RTC) to compare between the two surgical approaches in intermediate-molecular risk thyroid cancer.
The purpose of this study is to determine whether results from a fine needle biopsy are the same as results from a larger sample that is acquired from the surgical pathology using the Thyroid GuidePx® test in patients with papillary thyroid carcinoma.
Papillary cancer is a disease that spreads through lymphatic ways and its treatment is surgery. We performed prophylactic central dissection in addition to bilateral total thyroidectomy in patients with bethesda 5 and bethesda 6 biopsy results. We evaluated the pathology results retrospectively.
Somatic mutations in the MAP (mitogen-activated protein) kinase pathway have been found in about 80% of papillary thyroid tumors (PTCs). The evaluation of the PTC mutational profile is crucial for the definition of the prognosis and for predicting the effects of targeted and personalized therapies. Molecular characterization by mass spectrometry (Mass ARRAY) allows the search for multiple mutations in a single experiment, in a sensitive, fast and economic way. A Mass ARRAY platform (PTC-MA) was developed, capable of identifying the presence of the most common somatic point mutations and rearrangements in PTC (Pesenti et al., Endocrine 2017). The aim of the study is to characterize the mutational profile of a large series of papillary thyroid carcinomas (PTC). Tumor samples will be analyzed using our PTC-MA platform. The molecular profile of PTCs will be correlated with the clinical and prognostic characteristics of the patients.
Oxidative stress (OS) could be involved in the progression of papillary thyroid cancer (PTC). Indeed, thyroid differentiation genes are silenced by a mechanism controlled by NOX4-derived OS. On the other hand, TERT contributes to mitochondrial OS protection, which could increase the resistance of cancer cells to therapeutic agents. The investigators aim to address the role of OS and mitochondrial TERT in the progression and therapeutic resistance of PTC. OS and TERT subcellular localization will be investigated in 150 PTCs and correlated to the genetic and expression profile of the tumors and to the clinical and prognostic features of the patients. Mechanisms implicated in TERT mitochondrial migration and the contribution of mitochondrial TERT to tumor progression will be investigated in cancer cell lines and primary cell cultures. This study will allow to identify OS as a marker of therapeutic resistance in PTC and will open new opportunities for the development of novel treatments targeting ROS generation/TERT nuclear export.