Active clinical trials for "Lymphangioleiomyomatosis"

In this study, subjects with spontaneous or tuberous sclerosis complex associated lymphangioleiomyomatosis (LAM) who have not been started on therapy with mTOR inhibitors such as sirolimus or everolimus to undergo a PET/CT scan using an novel PET tracer that may better evaluate disease activity in LAM subjects both before and after the initiation of mTOR inhibitor therapy will be enrolled. The procedure for each scan will be similar, involving one administration of the novel tracer C11-glutamine followed by a whole body PET/CT scan.

The purpose of this study is to determine the safety and efficacy of the mTOR inhibitor sirolimus as a treatment for renal angiomyolipomas in patients with tyberous sclerosis complex or sporadic lymphangioleiomyomatosis.

Lymphangioleiomyomatosis (LAM) is a rare lung disease that is caused by genetic mutations. It results in the uncontrolled growth and proliferation of an unusual type of smooth muscle cell. These cells invade lung tissue, including the airways, blood vessels, and lymph vessels, and restrict the flow of air, blood, and lymph, respectively. Respiratory failure, lung collapse (pneumothorax), and pleural effusions (chylothorax) are hallmarks of the disease. This study will evaluate the safety and effectiveness of sirolimus, an immunosuppressive medication, in stabilizing or improving lung function in people with LAM.

This study will examine the effect of fasting on lymphangioleiomyomas abdominal tumors formed from enlarged lymph nodes containing lymphatic fluid. Previous studies have determined that these tumors increase in size in the evening, but this result could stem from the fact that previous study participants were tested after eating lunch. The purpose of the study is to help researchers understand the factors that produce changes in size of lymphangioleiomyomas, as well as to improve the ability of medical professionals to diagnose lymphangioleiomyomas and avoid confusing these tumors with other malignant tumors. Volunteers must be women who are at least 18 years of age and who have been diagnosed with lymphangioleiomyomas in the abdominal or pelvic areas. Candidates who have had lung or kidney transplants or who have type 1 diabetes will be excluded. Candidates will be screened with a physical examination and medical history. During the study, participants will be admitted to a National Institutes of Health clinical center for three days to undergo a number of tests. Tests will include routine blood and urine tests, and electrocardiogram, research blood testing, and abdominal and pelvic ultrasounds....

To establish a registry of individuals with LAM by forming a consortium of six clinical centers and referring physicians who treat LAM patients.

This is a physiopathological case-control, non-interventional, monocentric study of adult patients with lymphangioleiomyomatosis. The controls are patients followed in neurology at the CHU of Tours for a tuberous sclerosis complex without lymphangioleiomyomatosis, the healthy volunteers are women with neither pulmonary nor renal pathology and recruited at the clinical investigation centre of the CHU of Tours.

It was reported that TSC2-deficient cells enhance phosphatidylcholine synthesis via the Kennedy pathway. 11C-Choline can reflect the metabolic process of choline in vivo by intravenous injection. The purpose of this study is the ability of 11C-Choline PET/CT to evaluate the baseline condition of LAM patients and the efficacy of rapamycin after treatment.

Tuberous Sclerosis Complex (TSC) is a multisystemic autosomal dominant disease that is characterized by the development of benign neoplasms in brain, kidney, lung, skin and heart. TSC is caused by mutations in TSC1 and/or TSC2 genes, which encode, respectively, hamartin and tuberin, that are involved in the regulation of cell proliferation, cell cycle and protein synthesis. Most patients exhibit dermatological, renal, neurological and pulmonary (lymphangioleiomyomatosis, LAM) manifestations. Neurological involvement include subependymal nodules, subependymal giant cell astrocytomas and cortical tubers. LAM is characterized by the proliferation of LAM cells around the airways, blood vessels and lymphatics, which result in vascular and airway obstruction and cyst formation. The most frequent TSC manifestation in the kidney is the development of angiomyolipomas (AML). Dermatologic lesions represent the most common manifestations of TSC, mainly hypomelanotic macules and facial angiofibromas. The most significant functional implication of the tuberin-hamartin complex is its regulatory role upon the mammalian target of rapamycin (mTOR) pathway. Mutations in TSC1 or TSC2 lead to increased mTOR activity and favor tumor development and growth. All lesions associated with TSC, sporadic LAM and sporadic AML share a common molecular pathogenesis, based on TSC1/TSC2 mutations and mTOR hyperactivity. Up to date, TSC patients have been followed in separated medical services in our institution, according to their predominant phenotype. The current knowledge, however, suggest that the ideal follow up of such patients should be conducted in an integrated fashion among the specialties associated with the main disease manifestations. Experts in TSC from each of these areas have recently created a TSC/LAM/AML integrated program in the University of São Paulo Medical Center, and his project will be initiated with the generation of an integrated TSC/LAM/AML registry, which intends not only to clinically characterize this patient population but also to document the employed treatment modalities. Once this first goal is achieved, clinical trials are planned to be performed. The central aim of this observational study is to clinically characterize the TSC/LAM/AML subject population followed and referred to the University of São Paulo Medical Center. Specific aims: To characterize the pulmonary, the neurological, the renal and the dermatologic phenotypes of this patient population.

Lymphangioleiomyomatosis (LAM) is a rare disease in which reduced exercise capacity is frequently present. The mechanisms applied are airflow obstruction, abnormal diffusion capacity and dynamic hyperinflation (DH). Pulmonary rehabilitation (PR) has proved benefit in improving exercise tolerance, dyspnea, and quality of life in chronic obstructive pulmonary disease. There are no studies evaluating the impact of PR in patients with LAM. The hypothesis under study is that PR determine improvement in exercise capacity, dyspnea, quality of life, muscle force, functional limitation and DH in these patients.

Pulmonary lymphoangioleiomyomatosis (LAM) is a rare destructive lung disease typically affecting women of childbearing age. Currently, there is no effective therapy for the disease and the prognosis is poor. In order to better study this disease, the National Heart, Lung, and Blood Institute (NHLBI) has developed a registry to keep an official record of patients diagnosed with LAM. This research project will collect data from 6 health care centers as well as outside physicians. Researchers hope to provide valuable information about the rate of lung destruction and quality of life in patients with LAM. Patients participating in this study will be followed for 5 years. Tissue collected from these patients may contribute to the development of future studies on the disease processes of LAM.