View clinical trials related to Disease Progression.
Filter by:Aortic stenosis (AS) is the most frequent valvulopathy in Western countries. The prevalence of AS is constantly increasing due to the aging of the population. Although significant progress has been made in understanding the pathophysiological mechanisms underlying the onset and progression of AS, there is no medical treatment to slow or prevent its progression. The only treatment available is Aortic Valve Replacement (AVR) performed by surgery or by catheterization (TAVI). AS is associated with an increase of post-load which leads the left ventricular myocardium to hypertrophy. Associated with hypertrophy, myocardial fibrosis will gradually develop. Despite interesting data, many unknowns persist and remain to be identified. The aim of the study is to evaluate prospectively the progression and impact of AS in 500 patients using clinical, biological, echocardiographic and MRI parameters performed annually.
OBJECTIVE To investigate neurodegeneration and demyelination in the central and peripheral nervous system in multiple sclerosis linked to disease progression and mechanisms that can explain different responses to Fampridine treatment in MS patients with walking disability. METHOD The study is a prospective cohort follow-up study with 98 participants with MS and walking disability. Participants are identified as responders or non-responders to Fampridine treatment prior to the study. Participants will undergo MRI of the cerebrum with lesion load quantification, neurophysiological tests comprised of motor evoked potentials and electroneurographic examination, blood samples examining KIR4.1 antibodies, brain derived neurotrophic factor (BDNF), myelin protein zero (MPZ), peripheral myelin protein 22 (PMP22), p75-nerve growth factor receptor (p75NGFR) and anti-myelin associated glycoprotein (anti-MAG). The presence of SORCS-3 gene mutation will also be examined, as will cerebrospinal fluid levels of myelin basic protein, neurofilament heavy and light chains. Functional test of Timed 25-foot walk test (T25FW) will identify response to Fampridine treatment. A functional test battery will further detail function of upper extremities and cognition. CONCLUSION This study will add to the understanding of neurodegeneration and demyelination in CNS and PNS in patients with MS having walking disability. This will impact clinical decision-making by improving organization of immunomodulatory treatment, identifying biomarkers thus facilitating earlier treatment and improving patient control, information and education.
The purpose of this study is to measure how many patients develop worsening glaucoma in the early years (2-4 years) of routine monitoring in hospital eye services. We will study a group of patients who were initially diagnosed as having glaucoma, or having high pressure in the eye (ocular hypertension) or having been diagnosed as a glaucoma suspect.
Routine MRI is normal in motor neuron diseases such as ALS. However, advanced MRI techniques can provide an objective measure of degeneration (a "biomarker") by examining brain structure, wiring, chemistry, and function. We will develop and evaluate novel MRI techniques that could improve our understanding of ALS and provide a means to diagnose it sooner and monitor its progression. Importantly, we expect these techniques to improve how new drugs are tested, which may lead to the more rapid discovery of a treatment for ALS. Each participant will have 3 MRI scans over a period of 8 months, along with neurological and cognitive evaluations. Study visits will take 2 - 3 hours. MRI is a safe technique that does not involve radiation.
The study will evaluate patients with, at least, one previous procedure of coronary revascularization (surgical, percutaneous or both), that are referred for a new, clinically indicated, diagnostic coronary angiography, to describe their clinical characteristics, management, and prognosis, and will propose a prognosis-oriented classification.
hMe-Seal is a low-input whole-genome cell-free 5hmC sequencing method based on selective chemical labeling. It uses β-glucosyltransferase (βGT) to selectively label 5hmC with a biotin via an azide-modified glucose for pull-down of 5hmC-containing DNA fragments for sequencing. After selectively constructing 5hmC library, highthroughput-sequencing will be performed on an Illumina Nextseq-500 instrument. By ways of Rawdata processing, differential loci between Osteosarcoma group and control group will be detected to indentify specific epigenetic biomarkers of Osteosarcoma.
Breast cancer is one of the most serious threat to women's health of malignant tumors, also the most common causes of cancer death in women.Triple-negative breast cancer (TNBC) refers to the immunohistochemical detection of estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor-2 (Her-2) are negative.Compared with other types of breast cancer, TNBC has a high degree of invasion,local recurrence and metastasis. Also,TNBC can not use endocrine therapy and lack of molecular targeting for Her-2 target therapy.Meanwhile other biological agents are too expensive,so the current clinical therapy only can use in China is chemotherapy,the average survival time is about 2 years. Fortunately,due to the impact of traditional Chinese medicine(TCM) in China, the majority of breast cancer patients have received varying degrees of TCM treatment, and because of TNBC patients can not be more mature endocrine therapy and anti-molecular targeted therapy Benefits, Chinese medicine play an important role in TNBC patients.TCM regulate immune function, inhibit tumor growth, Anti-recurrence and metastasis, to extend the survival of patients with tumor, and relative to chemotherapy drugs and molecular targeted drugs,improve the quality of life.In addition ,comparing with the biological agents,Chinese medicine prices are relatively low,and can be worth using widely. With the development of evidence-based medicine, and gradually recognize the importance of comprehensive treatment of breast cancer, Cancer Treatment Model has been proposed,.That is, to take Chinese medicine, surgery, radiotherapy and chemotherapy, endocrine therapy and biological immunization and other standardized, individualized comprehensive treatment. The introduction of evidence-based medicine into the field of research, will be beneficial to the objective evaluation of TCM syndrome differentiation in the treatment of refractory breast cancer in the characteristics and advantages in order to promote the use of. This study based on TCM syndrome differentiation and treatment, and adopts multi-center, randomized, double-blind and controlled research methods to evaluate whether the intervention of traditional Chinese medicine can improve the TNBC patients with disease-free survival (DFS), overall survival(OS),and the best time to intervene in traditional Chinese medicine; also the establishment of the exact effect, obvious advantages and evidence, can be promoted in line with clinical practice of the program, the formation of refractory breast Cancer and Western medicine combined with clinical path, and relying on the national clinical research base of Chinese medicine information platform, the construction of clinical information management cloud platform, the formation of active medical service process, the establishment of refractory breast cancer combined with clinical prevention and treatment center, improve the life quality level of TNBC patients. The study contains 5 locations,including Longhua Hospital, Shuguang Hospital,Yueyang Hospital,Zhejiang Traditional Chinese Medicine Hospital and Fudan University Cancer Hospital.Considering of the results of the study at MD Anderson Cancer Center in foreign countries showed that the 3-year survival rate of TNBC patients was significantly shorter than that of non-TNBC patients (74% vs.89%, P <0.01) To be at least 10% survival rate.At the same time, considering the case lost rate of 20%, calculated by PASS software, the number of samples for each group of 310 cases, a total of 620 cases of cohort study. According to whether to take traditional Chinese medicine,all the participants are divided into exposure group and non-exposure group, the number of observations per group is 310. Before the research, all participants needs to fill in the informed consent form, investigators introduce the clinical research related matters to them and record the basic situation. The Chinese medicine exposure group take Chinese medicine(San Yin Decoction ) besides of original Western medicine , non-exposed group only received Western medicine treatment, a total of two years.All results are recorded in the CRF table,and use SPSS18.0, Stata10.0 and other statistical software for data to analysis.
This study aimed at evaluating the safety and efficacy of everolimus plus exemestane in Chinese postmenopausal women with ER+ HER2- locally advanced, recurrent, or metastatic breast cancer after recurrence or progression on letrozole or anastrozole.
This is an observational pilot study focused on collecting data on clinical variables that can improve the understanding of potential predictors of disease exacerbation and readmissions in COPD patients. The study aim is to understand how the variability of clinical parameters (respiratory rate, forced expiratory volume in one second, and oxygen saturation), physical activity and quality of life is associated with the risk of exacerbation in COPD patients.
This is a non-interventional, multi-center study that follows general principles of periodic assessment of X-ALD patients in routine practice. No study drug treatment will be given and no changes to patient treatment are necessary.