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.
There are numerous possible reasons why it could be speculated that HbA1c variability may affect complication risk. Of interest are the concepts that both laboratory and clinic evidence suggests that periods of sustained hyperglycemia are 'remembered' (metabolic memory), this in turn is recognized to place patients at greater long-term risk of complications. As such it can be speculated that the detrimental effect of variability in HbA1c may be mediated via the same mechanism as 'metabolic memory' phenomenon. Aims: To determine whether treatment to one of 2 threshold levels will result in one group of type 2 diabetes patients having the same mean HbA1c but with differing HbA1c variability to that of another and related to markers of oxidative stress, inflammation and microvascular complications. To determine whether a difference in HbA1c variability between the 2 groups will reflect in changes in small nerve fibers assessed with the sensitive method of corneal confocal microscopy and cardiac autonomic function testing. To assess the reproducibility of HbA1c measurement from a whole blood samples initially analyzed and then stored at -80C until the end of the study (2-3 years), as well as storing an aliquot of haemolysate, for reanalysis at the end of the study. In one arm the investigators will intensify treatment in those with FPG>140mg/dl until their FPG is <90mg/dl, using whatever treatment is clinically appropriate for them, and only intensify it further if their FPG rises to >140mg/dl again. In the other group the investigators will intensify if their FPG is >115 mg/dl until it is <=115 mg/dl and intensify further if >115 mg/dl again. A total of 20 visits within a time frame of 2 and half years will be performed. Visits procedures will include routine biochemistry, eGFR, lipids, fasting glucose, insulin and full blood count, HbA1c, SHBG, hsCRP. EPIC and G-PAQ questionnaires will be collected. Autonomic function testing using deep breathing heart rate variability, and a sensitive measure of small fiber neuropathy using corneal confocal microscopy and a 24 hour urine collection for urinary isoprostanes to measure oxidative stress will be performed, at baseline, 12 and 24 months.
This will be a prospective randomized 2 year study of patients admitted to the Hamad General Hospital (HGH) and the Stroke Prevention Clinic with a diagnosis of ischemic stroke (IS) and Transit ischemic attacks (TIAs). After signing of the informed consent forms and initial evaluation and investigations, all patients enrolled in the two arms ( study arm and control arm) of the study will be followed for one year (monthly visits for the first three months followed by visits three months until completion of study: total of 6 follow up visits) and the pre-specified investigations repeated at the one year follow up. In one arm (the control group), the patients will be offered best risk factor management strategies as currently being practiced by stroke specialists at HGH in Qatar. And in the second ( the subject group) arm, with assistance of a nurse-practitioner and pharmacist, the investigators will make aggressive attempts to meet "to target" defined risk factors and have the evaluations and investigations completed as in the initial year cohort. All patients will have risk factor stratification according the Framingham Risk Score (FRS) and the change in score measured over time.The primary objective will be to determine if an approach that utilizes a comprehensive strategy results in a significantly outcome. A clinically 'meaningful' difference in the blood pressure (BP) and lipid control of 10% between the aggressively managed versus patients treated with the standard of care will require minimum of 200 patients in each group (alpha error set at 0.05 and beta error at 0.20, power 80%) to be recruited over 1 year and followed for one year (total study duration 2 years). All patients will have screening magnetic resonance imaging (MRI) (including gradient echo (GRE) sequence), carotid 3D Doppler measurement of plaque volume, and PAD assessments, C-reactive protein (CRP) and evaluation for protein urea at baseline. These studies will be repeated in 1 year at the time of exit from the study. The co-primary objective would be to monitor progression (or regression) of plaque build-up on 3D Doppler imaging of the carotid arteries between the two cohorts. The investigators hypothesize that aggressive management of vascular risk factors to "recommended target levels" will lead to better vascular health. Compared to current practice, comprehensive and coordinated approach at preventive measures will lead to more patients with better control of blood pressure and lipid levels. Improved risk factor management will result in slowing of atherosclerosis and its downstream effects which will be measurable on sophisticated blood and imaging testing. Clinically this will translate into fewer hospital re-admissions.
Goal of the study: A- To find out the best protocol for catheter lock solution to decrease the prevalence of catheter thrombosis 1. - The time to first episode of catheter thrombosis lead to catheter change. 2. - Number of acute episode of thrombosis that interrupt dialysis 3. - Median Survival life of the catheter in both groups after adjusting it to the outcome. B- Specific Objective: To evaluate the cost effectiveness by measure 1. Amount of r-TPA used in each group to treatment acute catheter thrombosis 2. Number of catheter exchange in both group 3. Hospitalization days related to catheter malfunctioning or CRI in each group 4. Type and days of antibiotics 5. Cost of the treatment in each group c- Secondary Objective: To correlate the result of two catheters lock solution protocols with the published data using r-TPA instead of heparin once week as compared with heparin 3 times per week as a locking solution.
An interventional Phase 4 open-label, randomized, controlled, parallel-group, multi-country study in participants with psoriatic arthritis (PsA) consisting of 2 parts: Part 1 (Day 1 up to Week 16) is designed to compare the achievement of minimal disease activity (MDA) between participants randomized to either adalimumab in combination with methotrexate (MTX) or MTX alone escalated to the highest recommended or tolerable dose; Part 2 (Week 16 through Week 32) is designed to evaluate the maintenance or achievement of MDA on 4 different treatment regimens using adalimumab and/or MTX, with participant allocation based on the initial randomized treatment and achievement of MDA in Part 1, and with rescue treatment option.
Identify novel genetic variants causing skeletal dysplasia in Qatari populations and to additionally develop an understanding of how those variants influence skeletal biology at a molecular and cellular level.
QUDOS is a cross-sectional population study aiming to answer key questions about diabetes and its complications in Qatar as well as identify factors associated with the development and progression of diabetes complications.
In Qatar, cardiovascular diseases (CVD) have become the leading cause of morbidity and mortality over the past two decades. Between 1991 and 2010, a total of 16,736 patients were admitted with ACS (Acute Coronary Syndrome) in Qatar. Despite the use of percutaneous coronary intervention (PCI), coronary artery bypass graft (CABG), and pharmacological agents to acutely reduce vascular risk, ACS patients are at high risk of having further cardiovascular events. Consequently, secondary cardiovascular risk reduction therapy is needed for all CAD (Coronary Artery Disease) patients. Clinical practice guidelines recommend that following ACS, patients should receive indefinite treatment with aspirin, a beta blocker, an angiotensin converting enzyme inhibitor (ACEI) or alternatively angiotensin II receptor blocker (ARB) and a statin. Less than 80% of ACS patients in Qatar use this quadruple combination after discharge. This creates a significant opportunity for pharmacists to improve CVD management and outcomes in Qatar. Nothing is known about the impact of Qatar clinical pharmacists as direct patient-care team members at discharge and post-discharge on the short-term and long-term outcomes of ACS patients. The proposed study is aimed to determine this impact. The investigators hypothesize that a clinical pharmacist-delivered intervention consisting of medication reconciliation and counseling at discharge and tailored follow-up post-discharge will decrease hospital readmissions, emergency department (ED) visits and all-cause mortality at 3 month, 6 months and 12 months after hospital discharge when compared with control arm and pharmacist delivered intervention at discharge only among ACS patients. The investigators also hypothesize that the effect of the intervention will increase patients' adherence to evidence-based secondary prevention medications for CAD (Coronary Artery Disease), and patient satisfaction with pharmacy services. Besides, this intervention will reduce the treatment burden on patients.
This is a randomized, open-label, multi-center, global, Phase III study to determine the efficacy and safety of durvalumab + tremelimumab combination therapy versus platinum-based SoC chemotherapy in the first-line treatment of patients with epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) wild-type advanced or metastatic NSCLC.
The purpose of this study is to determine if abatacept is effective in the treatment of early rheumatoid arthritis.
Comparison of Immunochromatographic Test for rapid detection of group A streptococcal antigen with culture in Pediatric patients.