There are about 212 clinical studies being (or have been) conducted in Qatar. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
Patients with blood cancers and those who received a bone marrow transplant frequently have low circulating white blood cell countS. Fever in patients with low white blood cell count requires early appropriate antibiotic treatment to prevent complications including death. Bacteria have increasingly become more resistant to existing antibiotic options. Ceftolozane-tazobactam is a newer type of antibiotic that has been shown to be safe and effective in infections caused by several types of resistant bacteria that can cause serious infections in individuals with low blood count. This study aims to examine the effectiveness of this antibiotic in these types of patients. Patients with blood cancer and those who have received a bone transplant will be offered the option to join this study if they develop unexplained fever. If informed consent is granted, they will receive ceftolozane-tazobactam on top of the usual care that such patients receive. The patients will then be followed very closely to check their response to the treatment and if they develop any untoward events. The study will include 164 patients over an estimated 2 year period. The study is funded by Merck & Co, the company that manufactures the study antibiotic. However, Merck & Co. will not be involved in the actual running of the study, the collection of the study results or their analysis and interpretation. The study protocol has been reviewed and approved by an independent research oversight committee.
Identify a biologic (molecular) basis for the increased susceptibility of cigarette smokers to pulmonary TB (Mtb) by testing the hypothesis that smoking reprograms AM polarization towards a distinct phenotype associated with impaired host defense function against Mtb and that normalization of that phenotype via therapeutic modulation of the Alveolar Macrophage (AM) polarization or smoking cessation can restore the anti-Mtb host defense function of AM.
Sickle Cell disease is caused by an inherited hemoglobin disorder. Healthy red blood cells are discoid and can deform and move through small blood vessels to carry oxygen to all parts of the body. In Sickle Cell disease, as red blood cells circulate and oxygen is released, the deoxygenated abnormal Hemoglobin S can begin to polymerize and cause red cells to become sticky and elongated. These "sickled" red cells are less flexible and will obstruct small blood vessels and prevent normal red cells from circulating freely, which limits oxygen delivery to tissues and organs. This is known as a "sickling crisis" or "vaso-occlusive crisis" and is the leading cause of hospitalization in patients with Sickle Cell disease. Patients suffering from a sickle crisis experience severe pain and are at risk of stroke, heart attack or even death. Current therapy is limited to hydration and symptomatic pain relief. The administration of MP4CO as an adjunct treatment to standard therapy may alleviate pain associated with a sickling crisis and potentially reduce the severity and duration of a crisis. This may shorten the time in hospital and potentially improve the quality of life for patients with sickle cell anemia.
This protocol is designed to collect a small amount of blood and tissue from individuals with prostate cancer for extraction of DNA (genetic material) for the study of the genetic basis of prostate cancer. The study population will include individuals with known prostate cancer and controls without prostate cancer. The study will be conducted in Doha, Qatar at the Hamad Medical Corporation and Weill Cornell Medical College (Qatar). Individuals in the study population will be of Arab descent from Qatar. In this protocol, researchers will survey epidemiologic factors and medical records of patients with prostate cancer in order to study the clinical characteristics of these individuals. The researchers will collect blood and tissue samples to evaluate the genetic characteristics of individuals with prostate cancer. The researchers will also collect blood samples of individuals without prostate cancer to serve as a control. The goal will be to identify genes that are associated with prostate cancer and gene profiles that are associated with differing prognoses in individuals who have prostate cancer.