Unique ID issued by UMIN | UMIN000024055 |
---|---|
Receipt number | R000027642 |
Scientific Title | Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin |
Date of disclosure of the study information | 2016/09/14 |
Last modified on | 2018/03/19 10:08:24 |
Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin
Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin
Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin
Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin
Japan |
Lambert-Eaton myasthenic syndrome
Neurology |
Malignancy
NO
Lambert-Eaton myasthenic syndrome(LEMS) is an uncommon autoimmune disease that is characterized by muscle weakness and dysautonomia. LEMS is a disorder of reduced acetylcholine release from the presynaptic nerve terminals. Antibodies directed against the voltage-gated calcium channel interfere with the normal calcium flux required for the release of acetylcholine. 3,4-diaminopyridine(3,4-DAP) is used to treat LEMS in European countries. The mechanism of action is a significant prolongation of the nerve terminal membrane depolarization, which enhances calcium entry and thereby improves the release of acetylcholine. The purpose of this study is to assess the effectiveness of 3,4-DAP in LEMS.
Efficacy
The compound muscle action potential(CMAP) and the degree of increase in CMAP amplitude after high frequency receptive nerve stimulation conducted 1, 2, 4 months after treatment.
Interventional
Single arm
Non-randomized
Open -no one is blinded
Uncontrolled
1
Treatment
Medicine |
3,4-diaminopyridine
20 | years-old | <= |
85 | years-old | >= |
Male and Female
Patients who are electrically diagnosed to have Lambert-Eaton myasthenia syndrome or anti- voltage-gated calcium channel antibody positive patients.
Minors, pregnant women, or patients with a past history of epilepsy
10
1st name | |
Middle name | |
Last name | Wataru Sako |
Tokushima University
Department of Neurology
2-50-1, Kuramoto-Cho, Tokushima city, Tokushima prefecture
088-633-7207
dwsako@tokushima-u.ac.jp
1st name | |
Middle name | |
Last name | Takahiro Furukawa |
Tokushima University
Department of Neurology
2-50-1, Kuramoto-Cho, Tokushima city, Tokushima prefecture
088-633-7207
tfurukawa@tokushima-u.ac.jp
Tokushima University
Tokushima University
Other
NO
2016 | Year | 09 | Month | 14 | Day |
Unpublished
Enrolling by invitation
2016 | Year | 09 | Month | 14 | Day |
2016 | Year | 11 | Month | 01 | Day |
2016 | Year | 09 | Month | 14 | Day |
2018 | Year | 03 | Month | 19 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000027642