Treatment of Lambert-Eaton Myasthenic Syndrome (LEMS) With 3, 4 DAP

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Conditions studied: Lambert Eaton Myasthenic Syndrome (LEMS)

In brief

Lambert Eaton Myasthenic Syndrome (LEMS) is rare neurological disorder that results in muscle weakness and limited reflex activity. More than half of LEMS cases are associated with a malignancy, usually small cell lung cancer, and tend to progress more quickly than cases not coupled with malignant cells. 3,4diaminopyridine (3,4DAP)is a drug that has been demonstrated to be effective in treating the weakness associated with LEMS as it increases strength and improves autonomic symptoms in LEMS patients. It is not currently approved by the FDA for use in the United States. The investigators plan to use 3,4DAP to treat patients with LEMS here at the Columbia University MDA/ALS Research Center.

Key facts

Study ID

NCT01378546

Run by

Louis H. Weimer, MD

Starts

2005-05-01

Last updated by the study team

2013-07-18

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Be diagnosed with LEMS or a type of CMS likely to respond to 3, 4-DAP.
• If female of childbearing age, have negative pregnancy test, and be willing to practice and effective form of birth control during the study.
• Tested and found by ECG not to have a prolonged QTc syndrome.
• Agrees to have a second ECG at the time of peak drug effect. Has understood and signed the Informed Consent.

You may not qualify if…

• Is known to have a sensitivity to 3, 4-DAP.
• Has a history of past or current seizures or of severe asthma, or has an epileptiform EEG.
• Is believed by the investigator to be unable to comply with the protocol.
• Is unable to give informed consent.
• No patient will be excluded based on race, ethnicity, gender, or HIV status

Where it is running

• Columbia University Medical Center — New York, New York, United States

Full record on ClinicalTrials.gov

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