View clinical trials related to Neoplasm Metastasis.
Filter by:This study was a retrospective, non-interventional, longitudinal, descriptive study. This study did not have a key underlying hypothesis, rather it was designed to explore the onboarding and adherence of SPMS patients in Australia to Mayzent (siponimod) treatment. Initiating siponimod involves pre-screen tests, including a CYP2C9 genotype test to determine siponimod maintenance dosing, and patients underwent a 6-day titration prior to maintenance. The MSGo platform was developed to support onboarding. It is an integrated digital platform that functions as a patient support service.
Background: To assist clinicians with diagnosis and optimal treatment decision-making, we attempted to develop and validate an artificial intelligence prediction model for lung metastasis (LM) in colorectal cancer (CRC) patients. Method: The clinicopathological characteristics of 46037 CRC patients from the Surveillance, Epidemiology, and End Results (SEER) database and 2779 CRC patients from a multi-center external validation set were collected retrospectively. After feature selection by univariate and multivariate analyses, six machine learning (ML) models, including logistic regression, K-nearest neighbor, support vector machine, decision tree, random forest, and balanced random forest (BRF), were developed and validated for the LM prediction. The optimization model with best performance was compared to the clinical predictor. In addition, stratified LM patients by risk score were utilized for survival analysis.
Colorectal cancer represents a major public health problem in France because of its high incidence and severe prognosis. Early stages of the disease are well know and have justified the establishment of a mass screening strategy. Unfortunately, the factors determining the progression to metastatic disease about them much harder to grasp. Various prognostic factors and predictors of treatment response have been identified and are being used but most of them are In practice, they are sometimes coarse and relatively little discriminant for patients. It is now possible to directly quantify the amount of circulating tumor cells in peripheral blood. Quantification of circulating tumor cells beyond a threshold of 3 cells/7,5 ml has been established as a major prognostic factor, and the rapid decrease in the number of these cells under treatment is also a predictor of response for patients suffering from metastatic colorectal cancer . Furthermore, it has also been shown that the quality and importance of the systemic and peritumoral inflammatory response in carcinomas, including colorectal, played a key role in the prognosis of patients. In particular, the presence of high levels of blood neutrophils has been raised by many studies as being followed by a poorer prognosis. However, the correlation between the presence of circulating tumor cells and high levels of neutrophils has never been studied. There is a rational to assume that this association exists, and secondly that the presence of circulating tumor cells in a proinflammatory environment represented by a high levels of blood neutrophils promotes metastasis by exerting a negative synergistic effect on the prognosis of patients. The main objective of this pilot study is to find a correlation between the amount of circulating neutrophils and the presence of circulating tumor cells in patients with colon cancer metastatic unresectable non-pretreated. The secondary objective is to investigate whether this association results in a negative synergistic effect in terms of progression-free survival and survival to one year. This is a non-interventional study. The investigators expect the inclusion in one year of thirty patients in two centers (University Hospital Centre Antoine Lacassagne Nice) to achieve these goals.
The ATLANT study is prospective, multicentre, non-interventional, observational study. Patients with HR+/HER2-negative metastatic breast cancer received abemaciclib as monotherapy or in combination with endocrine therapy.
Lesions blurred by respiratory motion are common in fluorine-18 PET/CT studies. To avoid these artefacts, several standard gating correction technics are available. the investigator aimed to compare the impact of different gating techniques based on phase, amplitude, elastic-motion monitored with and without pressurre sensor device on standardized uptake value (SUVmax and SUVpeak) and uptake volume (UV) measurements on different sizes of pulmonary and liver lesions. The feasability of this study will be done using anthropomorphic coupled with a motion phantom and on a series of patients.
The type of liver resection (anatomical resection, AR or nonanatomical resection, NAR) for colorectal liver metastases (CRLM) is subject to debate. The debate may persist because some certain prognostic factors, associated with aggressive biological behavior of tumor, have been overlooked. The aim of our study was to investigate the characteristics of patients who would benefit more from anatomical resection for colorectal liver metastases.
The goal of this randomized controlled feasibility study was to evaluate the feasibility of preoperative inspiratory muscle training in patients undergoing surgery because of peritoneal metastases. The main questions it aimed to answer was how feasible the intervention is regarding process and scientific feasibility as defined by Thabane et al 2010. Participants in the intervention group were using a handheld device to increase their inspiratory muscle strength prior to surgery and researchers compared this group to a control group who were offered a sham treatment.
The goal of this clinical trial was to assess the diagnostic performance and safety of Sodium Fluoride F-18 Positron Emission Tomography / Computed Tomography (18F-NaF-PET/CT) in bone metastases of malignant tumors compared with Technetium[99mTc] Methylenediphosphonate Bone Scintigraphy ± Single Photon Emission Computed Tomography (99mTc-MDP-BS±SPECT). The enrolled subjects were randomly assigned to two sequences A and B at a ratio of 1:1. Within 7 days, 18F-NaF-PET/CT and 99mTc-MDP-BS±SPECT bone imaging were performed alternately. The sensitivity, specificity, positive and negative predictive value of 18F-NaF-PET/CT and 99mTc-MDP-BS±SPECT were calculated respectively based on the diagnostic data of standard of truth.
The goal of this observational study is to provide a feasible surgical strategy based on Nagata method for patients who require secondary revision surgeries and to verify its long-term aesthetic outcomes. The main question it aims to answer is: • Whether ear reconstruction surgery based on Nagata method can improve the unsatisfactory outcomes of primary reconstruction surgery? Participants who had accepted secondary ear reconstruction based on Nagata method in our department will be required to received questionnaires in the follow-up and their photographs will be collected for reconstructed ear evaluation of its realness through convolutional neural network (CNN) models we previously developed.
Secondary hyperparathyroidism (SHPT) is a common serious complication in the maintenance process of hemodialysis patients, characterized by diffuse or nodular hyperplasia of parathyroid glands. Parathyroidectomy for patients with drug-refractory SHPT is recommended in the clinical practice guidelines of the Global Organization for Improving Prognosis in Kidney Disease (KDIGO) and the Japanese Dialysis Therapy Society (JSDT) . Therefore, accurate localization and detection of parathyroid abnormalities is the key to avoid persistent recurrence of the disease. However, the sensitivity and specificity of the existing ultrasound and 99MTC-MIBI diagnosis are limited. CT examination is radiative and requires iodine contrast medium with nephrotoxicity, which may require timely dialysis and long-term monitoring for hemodialysis patients. 3T MRI has no radiation and does not need to use iodine contrast agent, which can well detect parathyroid lesions . Previous studies have reported that 3T MRI can diagnose primary hyperparathyroidism (PHPT), but the diagnostic efficacy of SHPT is still unclear. Therefore, this study aims to evaluate the preoperative diagnostic value of non-enhanced 3T MRI compared with 4DCT in patients with secondary hyperparathyroidism after hemodialysis.