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The purpose of the study is to provide expanded access (compassionate use) of 3,4 diaminopyridine to patients with Lambert-Eaton myasthenic syndrome (LEMS).
Up to 10 patients over the age of 18 years with a diagnosis of LEMS are eligible to enroll if they are medically stable. They may receive 3,4 diaminopyridine in addition to other treatments and standard of care investigations for LEMS under supervision of the primary investigator. Safety laboratory studies and EKGs will be obtained.
The study has been approved by the University of Pittsburgh IRB. There is a local Data-Safety Monitoring Board.
Lambert-Eaton Myasthenic Syndrome
University of Pittsburgh
Published on BioPortfolio: 2014-07-23T21:12:28-0400
Compassionate use of orphan drug 3,4-Diaminopyridine (DAP) in Treatment of Lambert Eaton Myasthenic Syndrome (LEMS). The purpose of the use of this drug is to decrease the weakness associa...
OBJECTIVES: I. Evaluate the safety and effectiveness of 3,4-diaminopyridine (DAP) in the treatment of patients with Lambert-Eaton myasthenic syndrome (LEMS). II. Determine the side-effe...
The purpose of this study is to determine the effectiveness and adverse effects of 3,4-diaminopyridine for the treatment of the Lambert-Eaton Myasthenic Syndrome (LEMS).
Congenital myasthenia and LEMS are potentially lethal disorder, which, even with careful management, significantly impedes participation in normal daily functions. Currently approved thera...
This study evaluates the effect of withdrawing amifampridine phosphate treatment from patients with LEMS. One half of the patients will continue to receive amifampridine phosphate and the ...
This historical review describes the contribution of Drs. Lee M. Eaton and Edward H. Lambert to the diagnosis of myasthenic syndrome on the 60th anniversary of their pioneering article (JAMA 1957) on ...
Myasthenia gravis (MG) and Lambert-Eaton myasthenic syndrome (LEMS) are both neuromuscular junction diseases, and some controversy exists whether the 2 diseases occur at the same time.
Autoimmune encephalitis and Lambert-Eaton myasthenic syndrome are classic paraneoplastic neurological conditions common in patients with small cell lung cancer.
Neuronal calcium channel antibodies are a biomarker of Lambert-Eaton syndrome (LES) and cerebellar ataxia. We have encountered several patients with LES and cerebellar ataxia coexisting and sought to ...
An autoimmune disease characterized by weakness and fatigability of proximal muscles, particularly of the pelvic girdle, lower extremities, trunk, and shoulder girdle. There is relative sparing of extraocular and bulbar muscles. CARCINOMA, SMALL CELL of the lung is a frequently associated condition, although other malignancies and autoimmune diseases may be associated. Muscular weakness results from impaired impulse transmission at the NEUROMUSCULAR JUNCTION. Presynaptic calcium channel dysfunction leads to a reduced amount of acetylcholine being released in response to stimulation of the nerve. (From Adams et al., Principles of Neurology, 6th ed, pp 1471)
Condition with a variable constellation of phenotypes due to deletion polymorphisms at chromosome location 22q11. It encompasses several syndromes with overlapping abnormalities including the DIGEORGE SYNDROME, VELOCARDIOFACIAL SYNDROME, and CONOTRUNCAL AMOMALY FACE SYNDROME. In addition, variable developmental problems and schizoid features are also associated with this syndrome. (From BMC Med Genet. 2009 Feb 25;10:16) Not all deletions at 22q11 result in the 22q11deletion syndrome.
Any autoimmune animal disease model used in the study of MYASTHENIA GRAVIS. Injection with purified neuromuscular junction acetylcholine receptor (AChR) (see RECEPTORS, CHOLINERGIC) components results in a myasthenic syndrome that has acute and chronic phases. The motor endplate pathology, loss of acetylcholine receptors, presence of circulating anti-AChR antibodies, and electrophysiologic changes make this condition virtually identical to human myasthenia gravis. Passive transfer of AChR antibodies or lymphocytes from afflicted animals to normals induces passive transfer experimental autoimmune myasthenia gravis. (From Joynt, Clinical Neurology, 1997, Ch 54, p3)
Rare congenital disorder with multiple anomalies including: characteristic dysmorphic craniofacial features, musculoskeletal abnormalities, neurocognitive delay, and high prevalence of cancer. Germline mutations in H-Ras protein can cause Costello syndrome. Costello syndrome shows early phenotypic overlap with other disorders that involve MAP KINASE SIGNALING SYSTEM (e.g., NOONAN SYNDROME and cardiofaciocutaneous syndrome).
An autosomal dominant aneurysm with multisystem abnormalities caused by increased TGF-BETA signaling due to mutations in type I or II of TGF-BETA RECEPTOR. Additional craniofacial features include CLEFT PALATE; CRANIOSYNOSTOSIS; HYPERTELORISM; or bifid uvula. Phenotypes closely resemble MARFAN SYNDROME; Marfanoid craniosynostosis syndrome (Shprintzen-Goldberg syndrome); and EHLERS-DANLOS SYNDROME.