View clinical trials related to Hemangioma.
Filter by:Cutaneous Arteriovenous malformations (AVM's) rare congenital high-flow vascular malformations in which arteries and veins are directly connected through a complex web of abnormal arteries and veins instead of a normal capillary network. Arterial feeders and enlarged draining veins directly connect through arteriovenous fistulas that create the "nidus". The natural history of AVMs is organized into a clinical staging system: during the first phase of quiescence, the arteriovenous malformation mimics a capillary malformation. After many years, the AVM may enlarge with loco-regional expansion and tissular destruction. At the ultimate stage, AVM may impact the heart function. They are considered non malignant but can expand and become a significant clinical risk when extensive. The management of these high flow AVM remains often problematic. Complete and large surgical excision of the nidus after hyperselective embolization is the only potential therapeutic solution but this, is often difficult if not impossible. There is no pathogenetic hypothesis for the development of these malformations. Histopathological examination (performed only on surgical resection specimen) is poor and does not provide sufficient evidence to assess the evolutivity or the severity of the MAV. Recent data hypothesize that these vascular malformations are associated with alterations of the vascular endothelium caused by genetic abnormalities involved in the control of angiogenesis and vascular homeostasis. The detection of these anomalies allows the search for cellular and genetic markers that might be useful to optimize the clinical classification, staging, predicting the evolution of these defects and some understanding of its pathophysiological mechanisms. To our knowledge, no studies to identify cellular markers / genetic and endothelial associated with the development of cutaneous AVMs have been published to date.
Cerebral cavernous malformations (CCMs) are clusters of abnormal blood vessels in the brain and spine. CCMs can bleed and cause strokes, seizures, and headaches. CCMs are often caused by an inherited gene mutation (alteration) in one of three CCM genes (CCM1, CCM2, or CCM3). There is a wide range of disease severity even among family members with this disease, though the natural history has not been clearly described for this particular population. This study will continue to enroll and follow participants with familial CCM to identify factors that influence CCM disease severity and progression, focusing on barriers to clinical trial preparedness. Our long-term goal is to identify measurable outcomes and robust biomarkers that will help select high-risk patients and help monitor drug response in future clinical trials. The specific goals of this study are to: - Identify factors that influence lesion progression to symptomatic hemorrhage and other outcomes, including quality of life; - Investigate the role of the gut microbiome and lesion burden in CCM disease, and - Identify blood biomarkers predictive of CCM disease severity and progression for clinical trials.
Cerebral cavernous malformations (CCMs) are clusters of abnormal blood vessels in the brain and spine. CCMs can bleed and cause strokes, seizures, and headaches. In some patients, CCMs affect the blood brain barrier (BBB). The BBB is the body's separation of blood and its contents in the brain from the brain tissue itself. Abnormal leakiness or permeability of this barrier can cause disease. We will measure the permeability (leakiness) of the BBB using a magnetic resonance imaging (MRI) technique called dynamic contrast-enhanced MRI (DCEMRI). The purpose of this study is to look at whether statin medications change the permeability (leakiness) of the blood brain barrier in CCM patients. Statin medications are used to lower cholesterol levels and prevent heart attack and stroke. In addition, this medication may decrease the risk of brain hemorrhage or bleeding in patients with CCM. This study will examine whether the permeability of the BBB changes following the administration of simvastatin for three months.
Little is known about the effect of fMRI navigation in the intracranial arteriovenous malformation surgery. The investigators aim to perform a multicenter prospective randomized single -blind clinical trial to assess the effect and safety of fMRI navigation in the brain arteriovenous malformation surgery.
There is no effective treatment for hemangioma regardless of immediate severity. That is in this respect a orphan disease. These hemangiomas, sometimes large, will have a phase of proliferation of several months (very scary for parents) and regression over several years. The natural history is peppered with local complications (ulcers) and aesthetic and psychological sequelae (sometimes major for the child and the family). The effects of acebutolol and propranolol on the proliferative hemangiomas were discovered accidentally by two French teams (Montpellier for acebutolol and Bordeaux for propranolol). Acebutolol and propranolol have been used for many years for the treatment of hypertension and congenital heart disease, including infants, with few side effects. The effects of acebutolol and propranolol were immediately visible with reduced volume and skin whitening of the hemangioma. In a preliminary study, acebutolol was administered to 20 patients in Montpellier with big regression of hemangiomas. The aim of the study was to compare the clinical efficacy of acebutolol (10mg/Kg/jour) and propranolol (3mg/Kg/j) on the proliferative phase of infantile hemangioma in infants.
This is a single patient investigative treatment study. The patient was diagnosed with a retinal tumor in one eye. In the last 2 years, the patient has been treated with all available and conventional therapies, including intraocular injections of Avastin and Lucentis, steroids, and photodynamic therapy. Any positive results were short-term, and caused an eventual decline in central vision. Aflibercept has been shown to be effective against the growth of new vessels, secondary to macular degeneration. This study proposes that it may also be more effective in treating this particular patient and case. The study treatment plan is for 6 months initially, with the intention to continue treatment.
Infantile hemangioma (IH) is the most common benign vascular tumor in pediatric population. The characteristic natural history of this tumor is rapid growth in the first year of life and follows by spontaneous involution. However, it may cause cosmetic unacceptable. Early intervention in superficial IH may help to minimize the risk of residual aesthetic problems. Topical timolol, a non selective beta-blocker, is an emerging treatment which has been reported in efficacy and safety for the treatment of IH. However, the reported studies were case-series or small study. This study is a prospective double-blind,randomized-controlled study to evaluate the efficacy and safety of 0.5% timolol maleate solution for treatment in superficial IH. The patient will be treated with topical timolol for at least 6 months and instructed to 4 times daily apply 1-2 drop of timolol solution on the lesion and rub over the entire lesion with a finger. Photographs of the lesion will be taken at the baseline and every 1-month visit. Clinical evaluation of the treatment efficacy is carried out by 2 investigators independently to determine the change in lesion size and visual analogue scale of the lesion color. The main outcome is to evaluate the efficacy of 0.5% timolol maleate solution in treatment of infantile hemangioma compared to placebo.
To evaluate the efficacy and safety of transcatheter arterial embolization with E7040 in Japanese subjects with hypervascular tumor or arteriovenous malformation
The investigators hypothesize that there are differences between infantile hemangiomas (IH) during the proliferating and involuting phases and in response to medical treatment that can be detected by optical tomography of these hemangiomas.
Current treatment options for hemangiomas, such as propranolol, steroids and interferon, all have the potential for significantly harmful side effects. The purpose of this study is to identify potential biomarkers that can be used to design clinical trials and accelerate the delivery of new treatment alternatives to children with hemangiomas.