There are about 3491 clinical studies being (or have been) conducted in Singapore. 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.
This 36-month open-label study of adefovir dipivoxil investigates the clinical benefits of the therapy in chronic hepatitis B patients with advanced fibrosis or cirrhosis confirmed with biopsy. Primary endpoint is histological improvement defined as a decrease of Ishak Fibrosis Score by one point or more from baseline at Month 36 of adefovir dipivoxil treatment. Approximately 150 patients will be recruited in study centres in the Asia Pacific area. The patients are offered 36 months of open label adefovir dipivoxil treatment, with assessments every three months, after which there is a 6-month post study treatment follow-up prior to study completion. After the 36 months of study treatment, it is likely that the patient will benefit from continued treatment with adefovir dipivoxil. If this is the case in the investigators clinical judgement, the investigator should ensure that a routine prescription is available in a timely manner, and that no unnecessary interruption in treatment occurs.
Glaucoma, an optic neuropathy characterized by progressive visual field loss, is the leading cause of irreversible blindness worldwide. The condition has a substantial heritable basis, as illustrated by the numerous loci and genes identified to date, and the large proportion of patients having a family history. Interleukin-1 (Il-1) is an important mediator of inflammation. There are 2 pro-inflammatory cytokines, Il-1 alpha and Il-1 beta. The genes encoding Il-1 are located within a 430kb region on chromosome 2q14.2. The role of Il-1 in glaucoma is a subject of recent interest. It has been shown that Il-1, produced endogenously by glaucomatous cells, inhibits the apoptotic response to oxidative stress, and Il-1 has also been reported to increase outflow facility by stimulating the _expression of matrix metalloproteinase enzymes, which in turn reduces extra cellular resistance. Recently, polymorphisms in Il-1 (particularly +3953T of the Il-1 β) were found to reduce the risk of primary open angle glaucoma. In this pilot study, we aim to investigate the role of Il-1 polymorphisms in both normal tension and high pressure glaucoma in our glaucoma patients. Both open and closed angle glaucoma will be studied. This is a pilot study of the role of immune system related polymorphisms and depending on the results, we may embark on a larger investigation of other immune genes in glaucoma
To evaluate the use of cultivated conjunctival epithelial equivalents for the treatment of ocular diseases
This is the first study investigating the safety of 32P BioSilicon in patients with advanced,unresectable pancreatic cancer who are also receiving standard intravenous gemcitabine chemotherapy. The secondary aims of the study will assess the implantation procedure, localisation of 32P BioSilicon, tumour response and survival parameters. Tumours targetted with 32P BioSilicon is hypothesized to show a reduction in tumour volume and with the low radioactivity dose that is delivered intratumourally, the incidence of side effects associated with the treatment is expected to be low. Prologation of survival and improved quality of life could be favourable outcomes of the investigational product.
1. To identify the underlying causes of macular haemorrhages in patients with high myopia 2. In the eyes found to have macular haemorrhages secondary to choroidal neovascularisation, we hope to identify the risk factors for the development of choroidal neovascularisation in high myopia 3. To study the functional outcome of these eyes as assessed by visual acuity 4. To study the morphological outcome of these eyes by clinical assessment (and fundal photography) and fluorescein angiography
Assess recovery of macula function after successful scleral buckling surgery for rhegmatogenous retinal detachment by using the multifocal ERG in the postoperative period i.e. recovery of functional integrity 2. Assess the relationship between the neurosensory retina and the retinal pigment epithelium/choriocapillaris after scleral buckling i.e. recovery of structural integrity 3. Assess if there is a difference between macula function postoperatively, in eyes with retinal detachments involving the macula and those that do not.
Tisseel fibrin adhesive has been used extensively in many forms of surgery. Its use in eye surgery has been relatively recent. A few studies recently showed it was effective in securing conjunctival grafts in pterygium surgery, and in securing wounds after glaucoma and squint surgery. We sought to confirm its effectiveness in pterygium surgery, as well as prove its effectiveness in securing other material to the ocular surface such as amniotic membrane. Our hypothesis is that fibrin adhesive is effective in securing various types of material to the ocular surface for a sufficient length of time to allow adequate healing before it is absorbed and degraded.
There is suggestive evidence for a role of dietary in the etiology of asthma and chronic bronchitis. However, there are few prospective data. We propose to expand our collaboration with the Singapore Chinese Health Study to examine dietary, environmental, and genetic factors, along with their interactions, in relation to the risk of developing asthma and chronic bronchitis. The Singapore Chinese Health Study is a cohort of 63,257 men and women of Chinese ethnicity in Singapore who were aged 45-74 years at enrollment from 1993 to 1998. Telephone follow-up of the cohort to update and outcome information began in 1999 and is ongoing. We expect to identify 538 cases of incident asthma and 672 cases of incident chronic bronchitis when the current follow-up questionnaire cycle is complete in 2004. In this proposal, we would validate self-reports of incident asthma, obtain follow-up data from the entire cohort to perform analyses of dietary and smoking in relation to these outcomes, and analyze genetic material on cases of incident asthma and chronic bronchitis and controls from the cohort. In this proposal we will examine the following hypotheses: 1. Higher intake of fruits and/or antioxidant micronutrients decreases the risk of developing asthma and chronic bronchitis. a. Effects if fruit and/or antioxidant micronutrients may differ by smoking history. 2. Common polymorphisms in genes involved in the response to oxidative stress influence the risk of asthma and chronic Bronchitis. We initially propose to examine polymorphisms in three genes--glutathione S-tranferase M1, glutahione S-transferase P1, and matrix metalloproteinase-1. However, we plan to examine additional relevant polymorphisms in the future, especially taking advantage of high throughput screens of candidate genes for asthma and chronic bronchitis. It is possible that by 2004 when the sample set will be available that more compelling candidates and high throughput screens may be available to us at a low cost. Thus we will re-evaluate our choice when the samples are available. 3. Polymorphisms in these and other genes interact with fruit/antioxidant intake and/or smoking to influence the risk of asthma and chronic bronchitis.
This study will provide pre-approval drug access to lapatinib, in combination with capecitabine, to patients whose breast cancer had progressed on other therapies
The purpose of this study is to compare E7389 versus capecitabine in patients with locally advanced or metastatic breast cancer who are refractory to the most recent chemotherapy. This is an open-label, randomized, two-parallel arm study. Patients will be randomized to receive either E7389 or capecitabine on a one-to-one ratio.