Active clinical trials for "Carcinoma"

This research study wants to develop advanced imaging methods to more accurately characterize prostate cancer or solid tumor aggressiveness. This observational study involves [18F]DCFPyL positron emission tomography and magnetic resonance imaging (PET/MRI)

For early stage laryngeal carcinoma and hypohparyngeal carcinoma (T1 and T2), transoral laser microsurgery, open partial laryngectomy, radiotherapy, and transoral robotic surgery were performed according to NCCN guidelines (2020). For advanced stage laryngeal carcinoma and hypohparyngeal carcinoma (T3 and T4), surgical treatment ± postoperative adjuvant therapy, chemoradiotherapy, neoadjuvant therapy + radiotherapy/chemoradiotherapy, or neoadjuvant therapy + surgery + radiotherapy or chemoradiotherapy performed according to NCCN guidelines (2020). This study plan to analyze the clinical ouctomes of different treatment for the same T stage disease. The overall survival rate, disease specific survival, disease free survival, local control, regional control, and laryngeal function preservation rate were analyzed in this study.

Chromosomal instability (CIN) refers to ongoing chromosome segregation errors throughout consecutive cell divisions. CIN is a hallmark of human cancer, and it is associated with poor prognosis, metastasis, and therapeutic resistance. Analyzing CIN of the DNA extracted from cast-off cells in bile samples seems a promising method for diagnosing, monitoring, and predicting the prognosis of biliary tract carcinoma patients. CIN can be assessed using experimental techniques such as bulk DNA sequencing, fluorescence in situ hybridization (FISH), or conventional karyotyping. However, these techniques are either time-consuming or non-specific. The investigators here intend to study whether a new method named Bile Ultrasensitive Chromosomal Aneuploidy Detection (BileCAD), which is based on low-coverage whole-genome sequencing, can be used to analyze CIN and microbial infection analysis thus help diagnosing and treating biliary tract carcinoma patients.

Liver transplantation (LT) is the only curative option for a selection of patients with hepatocellular carcinoma (HCC) based on clinical selection criteria known as the Milan criteria. Nevertheless, 15% of these patients still show tumour recurrence after LT. In a monocentric pilot study, we have demonstrated that specific changes in N-glycan profiles (measured before LT) occur in HCC patients receiving LT1. These specific changes proved to be strongly associated with the risk of HCC recurrence and overall death after LT, independent of the criteria used for stringent patient selection. Pathophysiologically, it is known that abberations in protein glycosylation are involved in the onset en development of HCC. As such, a prognostic biomarker was developed that can clearly differentiate between patients with and without increased risk of HCC recurrence. The primary goal of this research study is to set up a prospective, multicentre study in order to validate the prognostic value of this glycomics-based serum biomarker. As such, the risk of tumour recurrence in patients undergoing LT for HCC will be estimated independent from the Milan criteria and the French alpha-fetoprotein model as the current standard. The secondary goal is to explore the potential of serum glycomics as markers of early recurrence after LT for HCC. More specifically, we aim to investigate whether serial glycomics determination at fixed time points after LT could allow early detection of recurrent HCC even before it is visible on conventional imaging. Consequently, a diagnostic biomarker for monitoring early recurrence after LT could be developed with the potential of redirecting treatment strategies already in an early disease stage. In case the promising data from the pilot study will be confirmed, the prognostic biomarker could be implemented in daily clinical practice leading to optimization of patient selection using a simple blood test before LT. More specifically, this marker could improve organ allocation thus preventing unnessecary treatment toxicity for the patient and reducing the costs of treatment for society. Moreover, it should be emphasized that a patent application was already submitted and accepted in collaboration with TechTranfer of Ghent University (PCT/EP2021/057788-Prognostic markers of disease recurrence in liver transplant recipients with hepatocellular carcinoma).

The heterogeneity of hepatocellular carcinoma (HCC) leads to the unsatisfying predicting performance of current staging systems. HCC patients with pathological tumor micronecrosis have immunosuppressive microenvironment. We aimed to develop novel prognostic models by integrating micronecrosis to more precisely predict the survival of HCC patients after hepatectomy.

All participants will be tested for EBV-related biomarkers, including EBNA1-IgA, VCA-IgA, and BNLF2b total antibody (P85-Ab), and participants with high serologic risk will be selected based on serologic test results, and dual-energy CT will be performed first for high-risk screening subjects, and dual-energy CT will be performed first for the high-risk group to record dual-energy CT examinations of those suspected of nasopharyngeal carcinoma, and then endoscopy was performed on the high-risk group to record those suspected of nasopharyngeal carcinoma under endoscopy, and finally biopsies were taken for positive lesion sites indicated by dual-energy CT and suspicious lesion sites found by endoscopy to clarify the diagnosis.

Accurate assessment of lymph node status in superficial esophageal squamous cell carcinoma is of great significance for preventing undertreatment and overtreatment. However, the accuracy of the commonly used preoperative imaging methods for evaluating lymph node status is not high, and it is urgent to develop a prediction model that can predict the risk of individual lymph node metastasis to assist in clinical decision-making. In this context, investigators intend to retrospectively collect the clinical and pathological data of 300 patients with superficial esophageal squamous cell carcinoma, construct a lymph node metastasis risk prediction model. In addition, investigators are also preparing to prospectively collect tissue samples from 30 patients with superficial esophageal squamous cell carcinoma to further explore the mechanism of lymph node metastasis.

Cancer stem cells (CSCs) can undergo self-renewal and differentiation. EpCAM is a 40-kDa type I transmembrane glycoprotein composed of a large extracellular domain, one transmembrane region, and a small intracellular domain of 26 amino acids. Recent insights revealed that it is involved in promoting cancer cell proliferation, migration, and invasiveness. It is used as a diagnostic and prognostic marker. EpCAM has also recently been identified as a marker for CSCs.

The 5-year survival for Head and Neck squamous cell carcinoma (HNSCC) across all TNM stage groups is approximately 50%. Patients who are present with stage I & II disease have significantly better survival. When a patient presents to their general practitioner (GP) with symptoms suggestive of HNSCC, they may be referred for urgent specialist input through the suspected cancer referral (SCR) pathway, which include dedicated neck lump clinics. HNSCC is known to shed fragments of DNA, called circulating tumor DNA (ctDNA) into the bloodstream. The investigators have developed novel ultra-sensitive (>90% sensitivity) next generation sequencing (NGS) assay for circulating HPV DNA in patients with non-metastatic locally advanced head and neck cancer. The use of ultra-sensitive NGS assay for detection of ctDNA using a simple blood test (liquid biopsy) holds a great promise for cancer screening and early diagnosis and can lead to better survival results and less disease burden. With a quicker turnaround (1-2 weeks), the liquid biopsy can help expedite the patient journey through the cancer pathways reducing the incidence of cancer target breaches. In order to design studies to test this hypothesis the investigators require preliminary data quantifying sensitivity and specificity of the assay in this setting.

Most hepatocellular carcinoma (HCC) cases were at advanced stage when diagnosis established. This study is intended to establish a clinical diagnostic model GAMAD for early-stage HCC and evaluate the diagnostic efficiency the same time. This study is a multicenter prospective study. Participants including healthy control,HCC, liver cirrhosis, hepatitis and benign tumor-like lesions are consecutively recruited into the cohort. All the blood samples are collected before any treatments and will be tested in single center in order to decrease bias.