View clinical trials related to Telangiectasis.
Filter by:Scientific Objectives Primary objective : Demonstrate that oral intake of tranexamic acid significantly reduces the risk of epistaxis occurrence, estimated by the average monthly duration of episodes of epistaxis. Secondary objectives : - Document the benefit of tranexamic acid on the amount of haemoglobine and quality of life of patients. - Identify scalable and genetic factors of response to the treatment by tranexamic acid. - Describe compliance and tolerance of the treatment. Method Experimental Design We suggest the realisation of a randomised comparative clinical trial versus placebo, with a crossover of random alternated periods of three months over a total of six months. Study Population 213 affected patients, displaying sufficiently invalidating epistaxis to require a basal treatment, will be recruited and followed every 3 months. Recruitment will lean on teams who are part of the national French network in close collaboration with the reference centre for the Rendu-Osler disorder, appointed to Lyon on the 19th of November 2004. Follow up of the study will be carried out by the Clinical Investigational Centre of the related towns. Outcome measures The main criterion of efficacy is the average duration of epistaxis, the secondary criterion of efficacy is the average number of epistaxis measured per month. Tolerance will be analysed according to the occurrence of venal or arterial thrombosis and allergic accidents. Venal thrombosis will systematically be sought by an inferior limbs echodoppler. Response markers will be sought through modelisation incorporating environmental, phenotypic and genetic factors.
Hereditary Haemorrhagic Telangiectasia (HHT, also known as Osler-Weber-Rendu Syndrome) is an disease that leads to the development of dilated and fragile blood vessels, including arteriovenous malformations in the lungs (PAVMs). We hypothesize that the genetically-determined abnormality in the blood vessels of HHT patients leads to alteration in the concentrations or activity of several proteins in the blood stream. We propose to take blood samples from patients at defined times in order to study changes in blood protein levels and activity
We will address coagulation parameters in hereditary haemorrhagic telangiectasia (HHT) compared to controls.
Idiopathic Perifoveal telangiectasia is a poorly understood disorder that involves the growth of blood vessels around the center of the macula(perifoveal region). These blood vessels may extrend beneath the retina to produce an area of sub-retinal neosvascularization(growth of abnormal blood vessels under the retina which "leak" fluid, causing reduction in vision. Limited forms of treatment are available in managing the neovascularization and its consequences. Anecortave Acetate injection is considered as an attempt to control the growth of the abnormal blood vessels.
This is a pilot/feasibility study designed to investigate the feasibility of treating children with Ataxia-Telangiectasia (A-T) and cancer with regimens nearly as intense as non-A-T patients with cancer would receive.
To conduct several studies on the epidemiology of venous disease.
To examine the biobehavioral determinants of obesity in Black as compared with white women.
OBJECTIVES: I. Evaluate migraine prophylaxis with soy protein isolate in patients with hereditary hemorrhagic telangiectasia. II. Assess whether soy protein isolate reduces the frequency and severity of epistaxis and gastrointestinal bleeding in these patients.
OBJECTIVES: I. Collect data regarding the natural history of hereditary hemorrhagic telangiectasia (HHT). II. Establish genotype-phenotype correlations in HHT. III. Create a database of information for researchers throughout the world.
OBJECTIVES: I. Examine screening modalities for pulmonary vascular arteriovenous malformation (PAVM) in individuals with endoglin mutations. II. Examine the prevalence of cerebral arteriovenous malformations (CAVM) in individuals with hereditary hemorrhagic telangiectasia (HHT). III. Investigate whether modifier genes exist that determine which individuals with HHT due to an endoglin mutation develop PAVMs and which develop CAVMs. IV. Investigate the frequency of cardiac valve abnormalities in individuals affected with HHT due to an endoglin mutations.