Active clinical trials for "Carcinoma"

Hepatocellular carcinoma (HCC) is the most frequent primary tumour of the liver and is the third cause of cancer-related mortality worldwide. Depending on the stage of the disease, the treatment options are surgery, liver transplantation, chemotherapy or radiotherapy. Recently, scientific research has focused on small molecules called microRNAs which are produced by human cells and can be released in the blood. They have a role in cell proliferation and are found to be dysregulated in different types of cancer. It has been shown that microRNAs have a role in the development of HCC but it is unknown if these molecules can be used as markers for diagnosis and survival in HCC. In particular, microRNAs miR-221 and miR-222 are dysregulated in the tumoral tissues in about 80% of patients with HCC. This can be assessed on tissues from liver biopsies or surgical specimens, both invasive approaches. Only few studies showed the presence of microRNAs in the blood of patients with HCC but it is unknown if there is a correlation between tumoral tissue expression and circulating levels. The aim of this study is to evaluate if these two microRNAs are expressed not only in the tumoral tissues but also in the blood from cancer patients, and in different amounts compared to circulating levels in healthy individuals. A correlation between tumoral tissue and blood levels will also be evaluated. Should this evaluation show a strong correlation and reliability of circulating microRNAs in the diagnosis and follow up of HCC, future clinical trials targeting these microRNAs and their related pathways might benefit from this being adopted as conventional practice instead of the need of assessing tissue levels from liver biopsies. The results of this pilot study will bring preliminary results as a first step for future analysis on a larger cohort of patients.

The purpose of this study is to observe predictors of pituitary tumor recurrence and markers of persistent disease activity through computerized collection of comprehensive demographic, therapeutic, pathologic and outcome information on patients harboring pituitary mass lesions of all types.

The purpose of this research study is to examine the relationship between the microbiota (microscopic organisms) in the gut and the activity of the immune system during skin cancer immunotherapy.

The purpose of this study is to establish molecular subtyping of HCC.

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.

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.

It is proposed to undertake a study to determine the diagnostic utility of using RCM for the diagnosis of Basal Cell Carcinoma (BCC) in a tertiary referral centre as outlined by the recent NICE report (Nov 2015). This will allow an assessment of the potential to avoid diagnostic biopsy within the treatment pathway.

Hepatocellular carcinoma (HCC) is the most common type of liver cancer, its survival rate ranks only second to lung cancer and it is a severe threat to human health. In Egypt, HCC constitutes a significant public health problem. Where it is responsible for 33.63% and 13.54% of all cancers in males and females respectively. It has a poor prognosis after discovery, which is usually at a late stage of disease. This had been strongly linked to the hepatitis C virus epidemic that affected around 10-15% of the Egyptian population during the last 3 decades, and was reported as the highest prevalence of HCV in the world. However, the pathophysiological mechanisms involved remain unclear. The occurrence of HCC is a complicated process involving multiple genes and steps. Imbalances in cellular signal transduction pathways, deficiencies in DNA repair regulating genes, activation of protooncogenes, inactivation of tumor suppressor genes and epigenetic modifications all promote the occurrence of liver cancer.

The investigators retrospective collect the clinical data of patients diagnosed with lymphoepithelioma-like carcinoma, including primary site, gender, age, smoking history, tumor stage, time of initial treatment, EBV-DNA copy number, first-line treatment and survival status.

Prostate carcinoma (PC) is common malignancy and is considered to be the highest incidence in the old males. The traditional diagnostic methods of PC present with some shortcomings. For example, the specificity of serum PSA remains low while prostate needle biopsy is invasive and false negative in some case, even causing missed diagnosis of some high risk PC, and over diagnosis of PC is not rare. Therefore, a noninvasive diagnostic method with high accuracy is urgently needed. Our previous study has proved that PROstate cancer Urine Detector (PROUD), which is able to detect chromosomal aberrations of the urine exfoliated cells, is a reliable method in diagnosing urothelial carcinoma with sensitivity and specificity of 82.5% and 96.9%, respectively. But its potential in PC diagnosis hasn't been assessed yet and the accuracy of PROUD in detecting PC need to be validated. We here intended to investigate whether PROUD can be used in PC diagnosis and further validate the accuracy of PROUD in diagnosing PC.