Active clinical trials for "Telangiectasis"

Ataxia-Telangiectasia A-T is a neurodegenerative disorder of the cerebellum, manifesting with ataxia, as well as extrapyramidal features. Treatment of A-T is discouraging, since no treatment seems to change the course of disease, but improvement can be achieved by symptomatic treatment of the bothersome movement disorder . While various dopaminergic agents are occasionally used, reports of benefit are rather sparse and anecdotal. Amantadine, a well known drug used in influenza as well as movement disorder of Parkinson, has been proved to improve various other types of movement disorder as ataxia, chorea, dystonia, akinesia and attention span. The purpose of this study is to investigate weather amantadine sulphate improves ataxia and the movement disorder (bradykinesia, parkinsonism, dystonia, chorea), as well as the general well being in patients with A-T.

This study is conducted to evaluate the safety of THR-317 when administered intravitreally and to assess the compound's efficacy in reducing central subfield thickness (CST) and improving best-corrected visual acuity (BCVA) in subjects with macular telangiectasia Type 1 (MacTel 1).

The goal is to compare a novel yellow laser, based on semiconductor technology, with traditional green laser, in the treatment of cheek telangiectasias. The trial design is randomized split-face double-blinded study with 20-30 volunteers. The improvement will be assessed using a 7-point Telangiectasia Grading Scale.

The purpose of this randomised and controlled study is to investigate the effects of Kinesio Taping method and compression stockings, combined with exercise therapy, on pain, edema, functional capacity and quality of life in patients with chronic venous disease. Therefore, the study compares effectiveness of these two methods for chronic venous disease.

Current management strategies for severe and recurrent epistaxis secondary to Hereditary hemorrhagic telangiectasia (HHT) include surgical procedures, and uncomfortable nasal packing, both of which are often only short-term solutions. Floseal® may provide a non-invasive and less painful treatment option for epistaxis in HHT patients. This hemostatic agent has been shown to be an effective intraoperative hemostatic agent in a number of surgical procedures including endoscopic sinus surgery. It has also been shown to be favorable over nasal packing at controlling acute anterior epistaxis. Though the efficacy of using Floseal® for epistaxis in HHT patients has been proven anecdotally in the literature it has yet to be proven in a prospective clinical trial. The results of this pilot study will provide insight into the efficacy of using Floseal® in the management of severe epistaxis in HHT patients and to assist in the development of a full-scale prospective clinical trial.

To evaluate the safety and effectiveness of the Excel V system for the treatment of lower extremity spider veins on the ankles.

There is a wide variability of options for treatment of chronic radiation proctitis. However, studies are still limited, usually case reports from a single center and few are comparative studies between methods. Therefore, the choice of treatment is determined by availability and local expertise for each method. The variability of treatment options range from anti-inflammatory medical treatment, sucralfate, short chain fatty acids, antioxidants and hyperbaric oxygen to such endoscopic and surgical treatments. Surgery is usually the last therapeutic option due to the high morbidity and mortalityassociated. Various endoscopic treatment modalities have been reported. Formalin topic is effective in up to 48% of patients with chronic radiation proctitis. The endoscopic treatment with argon plasma (APC) is low cost, easy to apply and transportation, safe and effective in the treatment of rectal bleeding in patients with chronic radiation proctitis. Currently, the APC is the preferred endoscopic modality. Most studies on the use of APC in radiation proctitis showed benefit. The APC controls the mild to moderate rectal bleeding in 80% to 90% of cases and improves symptoms of urgency, diarrhea and tenesmus in 60% to 75% of cases.

Hereditary hemorrhagic telangiectasia (HHT) is a hereditary vascular condition characterized by the development of abnormal connections between arteries and veins throughout the body, called vascular malformations. These abnormal blood vessels are referred to as arteriovenous malformations (AVM) if they are large and telangiectasias if they are small. Telangiectasias develop due to irregular growth of blood vessels. Anti-angiogenic therapy, such as the drug Apo-Timop, curbs the growth of new blood vessels. Apo-Timop is included in a class of medications called beta-blockers. Anti-angiogenic therapies exert their beneficial effects in a number of ways: by disabling the agents that activate and promote cell growth, or by directly blocking the growing blood vessel cells. The investigators think that anti-angiogenic therapy may lead to the shrinking of telangiectasia in people with HHT. The investigators hope that this study will provide us with proof of this concept and might lead to the development and study of anti-angiogenic therapies to help improve the lives of individuals with vascular malformations.

This study will examine whether the drug ranibizumab is an effective treatment for macular telangiectasia, a condition in which existing blood vessels near the macula (the back part of the eye responsible for sharp central vision) become dilated and twisted, and new abnormal blood vessels may form under the retina. Both the existing dilated vessels, as well the new subretinal vessels can leak fluid and blood, distort the retina, and affect vision. This study will see if ranibizumab can slow or stop the leakage and growth of new vessels forming under the retina. Patients 18 years of age and older who have macular telangiectasia in both eyes and new blood vessel formation under the retina in at least one eye may be eligible for this study. Visual acuity must be 20/40 or worse. Participants receive at least four injections of ranibizumab into the eye over a 12-week period. After the fourth injection, additional injections may be given every 4 weeks for up to 1 year if the doctor determines that they may be of benefit. In addition to ranibizumab treatment, patients undergo the following procedures: Medical history and physical examination. Eye examination, including dilation of the pupils and measurement of the fluid pressure in the eye. Fluorescein angiogram: A yellow dye is injected into an arm vein and travels to the blood vessels in the eyes. Photographs of the retina are taken with a special camera that flashes a blue light into the eye. The photos show whether any dye has leaked from the vessels into the retina. Indocyanine green angiography: This procedure identifies feeder vessels that may be supplying the abnormal blood vessels. The test is similar to fluorescein angiography, but uses a green dye and flashes an invisible light. Autofluorescence imaging: This test examines how well the retina functions. The back of the eye is photographed with a bright light. Optical coherence tomography: This test measures retinal thickness. A light shined into the eye produces cross-sectional pictures of the retina. The measurements are repeated during the study to determine if retinal thickening is getting better or worse, or staying the same. Stereoscopic color fundus photography: The pupils are dilated and special photographs of the inside of the eye are taken to evaluate the retina and measure changes that occur over time. The camera flashes a bright light into the eye for each picture. Follow-up visits: The doctor evaluates the effects of the study treatment before and after each injection. Patients are contacted by phone 3 days after each injection to check on any treatment side effects. A final follow-up visit is scheduled 8 weeks after the last treatment.

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.