Active clinical trials for "Neoplasms"

The investigators are going to explore the diagnostic and prognostic value of circulating tumor cells and exosomes extracted from the portal venous blood obtained with endoscopic ultrasound in pancreatic cancer patients.

The aim of this project is to test a new powerful PNA-based SENP1 inhibitor, previously characterized in an in vitro model of OS cell lines. The most effective PNA, conjugated with a cell-permeable CPP, which is able to inhibit OS cells viability and invasiveness in both normoxia and hypoxia through SENP1-mediated inhibition of HIF1α, ZEB1, and Akt, will be investigated for its ability to penetrate and silence SENP1 expression in ex vivo human OS tissues. Primary aim: To determine the ability of PNA-CPP to penetrate into an ex vivo tridimensional tissue of OS, derived from wasted biological material obtained during OS eradication surgery, and to exert its biological function of inhibiting SENP1 within the tissue.

Fluoropyrimidines are the backbone of chemotherapy regimes used to treat metastatic colorectal cancer (CRC). These drugs act in different pathways of folate metabolism altering DNA synthesis mainly by inhibition of the tymidylate synthase. For this reaction the 5,10-methylenetetrahydrofolate acts as cofactor. It has been demonstrated that A1298C and C677T polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene result in reduced enzyme activity that leads to reduced availability of this important cofactor. Hence, we hypothesized that the presence of these polymorphisms are related to the efficacy and toxicity of fluoropyrimidines in patients with CRC.

This is an observation pilot trial aimed to study to the association between mindfulness and other psychological factors, including both protective and risk factors, with recovery of functional ability following colorectal cancer surgery.

Treatment options for multiple myeloma have increased significantly over the last years with the approval of immunomodulatory drugs (IMiDs) and proteasome inhibitors (PIs). These therapies have markedly improved overall survival for these patients to a median of 5-7 years. Due to the advanced age, the myeloma patient collective has a high prevalence of pre-existing cardiovascular comorbidities. In addition, the primary disease process contributes to cardiovascular complications. With the beginning of anti-tumor therapy, an increased incidence of cardiovascular complications in myeloma patients can be determined. This includes hypertension, left ventricular dysfunction, heart failure and both arterial and venous thromboembolic events. The detailed mechanism by which proteasome inhibitors and immunomodulatory agents lead to increased cardiovascular events is not established at this time. Endothelial dysfunction, as a possible mechanism of cardiovascular toxicity, is difficult to assess. Flow-mediated dilation (FMD) is an noninvasive method to measure endothelial function by assessing the change in the vasodilatative reserve of the brachial artery. Several independent recent investigations implicate that vascular (endothelial) dysfunction precedes hypertension and heart failure. This has been related to a reduced level of metabolites of the l-arginine-nitric oxide (NO) signaling pathway. Hypothesis: Anti-myeloma therapy exert vascular toxicity by limiting endothelial function. Endothelial function, assessed by the change in the vasodilatative reserve of the brachial artery (flow-mediated dilation = FMD) decreases after myeloma therapy. Patients with multiple myeloma have a limited endothelial function compared to a healthy control group. A total of 40 myeloma patients will be examined. Measurements will be taken at baseline, 1 month and 6 month after myeloma therapy. Patients should not have received chemotherapy for at least 3 months. Furthermore a healthy sex- and age-matched control group will be examined.

In our previous study, a nomogram model was established to predict intra-abdominal infectious complications after gastrointestinal surgery. This model was based on the clinical data and the drainage fluid cytokine levels, and it received an AUC >0.9. In this study, validation of this nomogram is planned to be conducted in this prospective cohort study.

It is a a single arm, observational clinical trial to evaluate the efficacy and safety of combination treatment with sintilimab injection plus endostar in untreated locally advanced or metastatic hepatocellular carcinoma.

Hypoxia imaging has not been studied extensively by combining PET and MRI data. Few studies performed the double imaging and none associated anatomopathology with it . This study will use a rigorous methodology through the production of PET/MRI images at the same time by transferring the patient directly from PET to MRI. In addition, the population, unlike other studies, will include preoperative patients with 24-hour surgery for hypoxia imaging by obtaining additional data through specific immunohistochemical analysis of hypoxia.

Ataxia telangiectasia (A-T) is a multisystem disease with diverse manifestations, including progressive neurodegeneration, immunodeficiency, respiratory disease, and genomic instability. One of the most important features of A-T is the increased predisposition to cancer, especially to lymphoid malignancies. Patients with A-T are generally excluded from collaborative clinical trials, their treatment outcomes and toxicity profiles have rarely been reported, and little is currently known concerning the treatment intensity required to provide a reasonable balance between efficacy and toxicity. The aims of this study are to build a large international de-identified database of children with A-T treated for leukemia and lymphoma, to investigate epidemiology and outcome of treatment, toxicity profiles and risk factors which impact outcome, in order to eventually enable the generation of data-based treatment recommendations for this population.

Observational study (cohort type) of advanced GC patients that will be recruited prospectively to study biological factors associated with the disease and relevant clinical outcomes.