View clinical trials related to Biomarkers.
Filter by:This project is a real-world exploratory study aiming to explore potential molecular markers detectable at baseline that can enable the prediction of clinical efficacy of front-line immunotherapy combined with chemotherapy in advanced non-small cell lung cancer (NSCLC). This study aims to include a total of 200 treatment-naïve patients initially diagnosed with advanced NSCLC. Paired tissue and blood samples collected from all patients before the start of immunochemotherapy treatment (baseline) will be analyzed. The patient samples will be submitted for molecular analysis, including next-generation sequencing (NGS)-based gene expression profiling (GEP) and inflammation-related T-cell receptor (TCR) repertoire profiling. The molecular assay results will include but will not be limited to tumor mutation burden (TMB), microsatellite instability (MSI) status, DNA damage repair (DDR)-related gene mutation status, and programmed death-ligand 1 (PD-L1) expression level. Patients will be followed-up for treatment responses until radiological confirmation of disease progression to first-line immunochemotherapy. The molecular assay results will then be analyzed with clinical data including objective responses and progression-free survival outcomes, among others, to identify molecular markers at baseline that are associated with clinical efficacy of immunochemotherapy.
The objective of this protocol is to conduct longitudinal and prospective studies of liver transplant recipients, using a multimodality approach, akin to that used in kidney transplantation. The primary aim will compare the clinical outcomes of LiverCare post-transplant surveillance in liver transplant with standard of care consisting of liver function tests, DSA measurements, drug level monitoring, and 'for cause' biopsy. The protocol will assess the correlation between clinical events (e.g. rejection, recurrent disease, biliary obstruction), dd-cfDNA levels, gene expression profiling, ability to assess microchimerism, develop predictive analytics, infectious disease diagnoses and finally examine graft histology.
Traditional management of community-acquired pneumonia (CAP) relies on the prompt administration of antimicrobials that target the most common causative pathogens. Retrospective analysis of observational clinical studies in CAP showed that the addition of macrolides to standard antibiotic therapy conferred a significant survival benefit. The proposed benefit of macrolides is coming from their anti-inflammatory mode of action. An RCT that proves the attenuation of the high inflammatory burden of the host with CAP after addition of clarithromycin in the treatment regimen is missing. This RCT is aiming to prove that addition of oral clarithromycin to a β-lactam rapidly attenuates the high inflammatory burden of the host in CAP.
This study will evaluate if traumatic intracranial hemorrhage can be safely ruled out by using a microwave scanner (MD100) in conjunction with a combination of different brain biomarkers analyzed in serum.
To goal is to identify semaphorins that are associated with NAFLD and to investigate their relationship with variable degrees of steatosis and fibrosis.
Out-of-hospital cardiac arrest (OHCA) is one of the leading cause of death in the world. In Slovenia approximately 25% of resuscitated patients survives to discharge from hospitals, usually with poorer functional status. One of key pathophysiological process responsible for poorer functional status is global hypoxic-ischemic injury, which is two-stage. Primary stage occurs immediately after cardiac arrest due to cessation of blood flow. With return of spontaneous circulation a secondary injury occurs, of which the leading process is an imbalance between oxygen delivery and consumption. Reperfusion exposes ischemic tissue to oxygen, resulting in the formation of large amounts of highly reactive oxygen species (ROS) within minutes. ROS lead to oxidative stress, which causes extensive damage to cell structures and leads to cell death. Consequently, necrosis and apoptosis are responsible for organ dysfunction and functional outcome of these patients. Such injury of neural tissue causes brain damage, which is ultimately responsible for poor neurological and thus functional outcome of OHCA survivors. The extent of brain damage can be determined in several ways: clinically by assessing quantitative and qualitative consciousness and the presence of involuntary movements in an unconscious patient, by assessing activity on electroencephalographic record, by imaging of the brain with computed tomography and magnetic resonance imaging, as well as by assessing levels of biological markers of brain injury. Of the latter, the S-100b protein and neuron-specific enolase have been shown to be suitable for such assessment. Oxidative stress is counteracted by the body with endogenous antioxidants that balance excess free radicals and stabilize cellular function. Vitamin C (ascorbic acid) is the body's main antioxidant and is primarily consumed during oxidative stress. Large amounts of ROS rapidly depletes the body's vitamin C stores. Humans cannot synthesise vitamin C and enteral uptake of vitamin C is limited by transporter saturation. On the other hand, parenteral (venous) dosing of vitamin C can achieve concentrations of vitamin C above physiological and thus produce a stronger antioxidant effect. The beneficial effect of parenteral dosing of vitamin C has been establish in several preclinical and clinical studies in patients with ischemic stroke and cardiac arrest. The investigators hypothesize that there is a similarly beneficial effect of vitamin C in survivors of OHCA.
Early prediction of AKI can help to improve patients' outcome through early institution of the appropriate intervention, thus the current study hypothesizes that urine analysis for certain markers may provide an early knowledge about the possibility of oncoming kidney affection secondary to organ and tissue trauma affecting patients admitted to surgical ICU. The current study tries to evaluate the value of urinary markers as early predictors of possible development of AKI in patients admitted to surgical ICU.
Renal cell carcinoma accounts for 2-3% of all cancers in western countries. Brazilian kidney cancer data show an incidence of 6,270 new cases for 2018. New target-molecular therapies have emerged in recent years for the treatment of metastatic kidney cancer. Due to the heterogeneity of these patients and the lack of specific markers, therapeutic is currently based on clinical and laboratory analysis. The research for predictive biomarkers may better characterize the kidney cancer therapeutic management. The objectives are to identify a predictive gene expression profile in patients with advanced clear cell renal carcinoma treated with first-line sunitinib and correlate it with rate response, seeking to identify a predictive gene expression profile. As secondary objectives, the investigators will compare the gene expression profile found, with global survival and clinical-pathological characteristics. Materials and methods: To determine through systematic data collection the epidemiological profile, clinical-pathological characteristics, response rate, disease free survival and overall survival of 60 patients with metastatic clear cell renal carcinoma who used sunitinib in the first line between 2009 and 2018 at the Barretos Cancer Hospital. For evaluation of gene expression profile, the investigators will use a panel of a panel with 770 genes related to disease progression using nanostring technology. Keywords: Renal Cell Carcinoma; Sunitinib; Biomarkers; Gene expression; Nanostring.
Serum samples of asthmatic patients will be screened for serum biomarkers
The primary goal of this study is to determine the amount of three systemic markers of inflammation: 1) Hemoglobin A1c (Hgb A1c, 2) High Sensitivity C-Reactive Protein (hsCRP), and 3) Haptoglobin (Hp) at 9 and 12 month follow-up post scaling and rootplaning (SRP) with and without minocycline HCl microspheres, 1 mg.