Active clinical trials for "Klippel-Trenaunay-Weber Syndrome"

The purpose of this research study is to gain a preliminary understanding of the safety of sirolimus in Sturge-Weber syndrome (SWS) and determine best outcomes to be used to assess the utility of sirolimus for the treatment of cognitive impairments related to Sturge-Weber syndrome.

Safety and tolerability study of 2 concentrations of QLS-101 for adult subjects with Sturge Weber Syndrome (SWS)-related glaucoma due to elevated episcleral venous pressure (EVP).

Open-label study of an investigational product (IP), QLS-101, with 28-day every morning (QAM) dosing to both eyes (OU) in adolescents with SWS who have clinical evidence of glaucoma and/or ocular hypertension (OHT) related to SWS elevated EVP in at least one eye.

This study has three aims that hope to expand the knowledge on the cause of Sturge-Weber Syndrome (SWS) and improve clinical care of Sturge-Weber Syndrome patients.

Sturge Weber Syndrome (SWS) is a rare disease that affects the patient's brain and causes benign (non-cancerous) tumors to grow in the brain. One of the symptoms of SWS is epilepsy. People with epilepsy have seizures. Some patients may also have eye problems and a red mark on their facial skin. This study is being done to find out if the study drug, everolimus, is safe and has helpful effects in patients with SWS who have seizures and are not responding to their current anti-epileptic medication. The study drug, everolimus (Afinitor®), is supplied by Novartis Pharmaceuticals Corporation.

Sturge-Weber syndrome (SWS) is a rare congenital neuro-cutaneous disorder considered as a rare or orphan disease. SWS is characterized by a capillary vascular malformation (CM) localized on the skin of the face, eyes and central nervous system. Given the localization and the extent of the CM, children with SWS are particularly prone to developing severe psychological problems. The standard treatment for CM is pulsed dye laser (PDL) although in these cases whitening of the lesion is rarely achieved. Combining topical rapamycin, a specific inhibitor of the mammalian target of rapamycin, with PDL is hypothesised to be a good therapeutic option in these patients.

The purpose of this research is to gather information on the safety and effectiveness of core biopsy of vascular anomalies for clinical pathology and clinical genomics studies.

Port Wine Stain on a limb can be either isolated or associated with complications (venous or orthopedic impairment, arteriovenous malformations), leading sometimes to complex syndromes (Klippel-Trenaunay syndrome,Parkes-Weber syndrome). Little is known about epidemiology of port wine stains: their evolution during the growth of the child, the frequency of complications, genetic data, and prognostic factors. This prospective french national cohort will help for : description of the evolution of port wine stain and possible complications; prognostic factors for complications ; association with mutations of RASA1 gene; quality of life of these children. It will also help for global appreciation of the management of this disease in France.

Refractory epilepsy, meaning epilepsy that no longer responds to medication, is a common neurosurgical indication in children. In such cases, surgery is the treatment of choice. Complete resection of affected brain tissue is associated with highest probability of seizure freedom. However, epileptogenic brain tissue is visually identical to normal brain tissue, complicating complete resection. Modern investigative methods are of limited use. An important subjective assessment during surgery is that affected brain tissue feels stiffer, however there is presently no way to determine this without committing to resecting the affected area. It is hypothesized that intra-operative use of a tonometer (Diaton) will identify abnormal brain tissue stiffness in affected brain relative to normal brain. This will help identify stiffer brain regions without having to resect them. The objective is to determine if intra-operative use of a tonometer to measure brain tissue stiffness will offer additional precision in identifying epileptogenic lesions. In participants with refractory epilepsy, various locations on the cerebral cortex will be identified using standard pre-operative investigations like magnetic resonance imagin (MRI) and positron emission tomography (PET). These are areas of presumed normal and abnormal brain where the tonometer will be used during surgery to measure brain tissue stiffness. Brain tissue stiffness measurements will then be compared with results of routine pre-operative and intra-operative tests. Such comparisons will help determine if and to what extent intra-operative brain tissue stiffness measurements correlate with other tests and help identify epileptogenic brain tissue. 24 participants have already undergone intra-operative brain tonometry. Results in these participants are encouraging: abnormally high brain tissue stiffness measurements have consistently been identified and significantly associated with abnormal brain tissue. If the tonometer adequately identifies epileptogenic brain tissue through brain tissue stiffness measurements, it is possible that resection of identified tissue could lead to better post-operative outcomes, lowering seizure recurrences and neurological deficits.

Sturge-Weber Syndrome (SWS) is a neurological disorder characterized at birth by seizures and a large port-wine stain birthmark on the forehead and upper eyelid of one side of the face. SWS is also accompanied by an increased pressure within the eye (glaucoma) which can develop very early in life. Glaucoma represents a group of ocular disorders that are characterized by the loss of retinal ganglion cells and their axons, damage to the optic nerve, and gradual loss of visual field. Recently, several studies provided evidence that there is a potential role of the immune system in the pathogenesis of glaucoma. These findings suggest that there might be changes in systemic humoral immunity possibly underlying the optic neuropathy in at least some glaucoma patients.