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No Longer Available No phase listed Expanded access

Treatment of Lambert-Eaton Syndrome With 3,4 DAP

ClinicalTrials.gov ID: NCT00704925

Public ClinicalTrials.gov record NCT00704925. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 6, 2026, 8:24 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Treatment of Lambert-Eaton Syndrome With 3, 4-Diaminopyridine

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

A new drug called 3,4-Diaminopyridine (3,4-DAP) is currently under investigation for treatment of the symptoms of Lambert-Eaton Myasthenic Syndrome (LEMS). This is an expanded access trial, which means that although data from this study will be collected and reported to the US Food and Drug Administration (FDA)and the drug manufacturer, this is not a formal study of drug in LEMS. If you decide volunteer, you will be evaluated by a neurologist to determine your eligibility to receive 3, 4-DAP by a review of your medical history, medication regimen (the medications you are taking) and a neurological examination. If you are a female of child-bearing potential, a serum pregnancy test will be done to ensure that you are not pregnant. Once it is determined that this treatment is appropriate for your care, you will begin taking 3, 4 DAP by mouth in slowly increasing doses. Treatment will begin with 5mg three times a day, as clinically needed, and if tolerated. You will be monitored for strength and side effects by routine clinic visits at initial intervals of once a month, increasing to intervals of every 12 months as permitted. Blood will be drawn (approximately 1 tablespoon) at every clinic visit or as often as the investigator deems necessary to assess your liver/kidney function and blood counts. You will have an EKG (a test to see how your heart is functioning) at your first study visit, after 6 months of taking 3,4 DAP and again every 2 years. Treatment will be continued indefinitely if a good clinical response is achieved. This study is planned to last indefinitely. The dosage of 3, 4DAP is individually adjusted. The usual range is 10-15 mg 3-4 times per day for the full effect and will increase by 50% every two weeks to 10-15 mg three to six times a day, as needed and if tolerated. Dosages above the full effect level will not provide an additional benefit and should not be used. 3, 4 DAP is a convulsant (causes seizures). A total of 100 mg/day is the maximum dosage allowed.

Study identification

NCT ID
NCT00704925
Recruitment status
No Longer Available
Study type
Expanded access
Phase
Not listed
Lead sponsor
David P. Richman, MD
Other
Enrollment
Not listed

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Not listed
Primary completion
Not listed
Completion
Not listed
Last update posted
Oct 29, 2019

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of California, Davis Sacramento California 95817

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00704925, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 29, 2019 · Synced Sep 6, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00704925 live on ClinicalTrials.gov.

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