UMIN-CTR Clinical Trial

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

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Basic information

Public title

Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin

Acronym

Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin

Scientific Title

Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin

Scientific Title:Acronym

Treatment of Lambert-Eaton myasthenic syndrome with 3,4-diaminopyridin

Region

Japan


Condition

Condition

Lambert-Eaton myasthenic syndrome

Classification by specialty

Neurology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

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.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

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.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

3,4-diaminopyridine

Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit

85 years-old >=

Gender

Male and Female

Key inclusion criteria

Patients who are electrically diagnosed to have Lambert-Eaton myasthenia syndrome or anti- voltage-gated calcium channel antibody positive patients.

Key exclusion criteria

Minors, pregnant women, or patients with a past history of epilepsy

Target sample size

10


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Wataru Sako

Organization

Tokushima University

Division name

Department of Neurology

Zip code


Address

2-50-1, Kuramoto-Cho, Tokushima city, Tokushima prefecture

TEL

088-633-7207

Email

dwsako@tokushima-u.ac.jp


Public contact

Name of contact person

1st name
Middle name
Last name Takahiro Furukawa

Organization

Tokushima University

Division name

Department of Neurology

Zip code


Address

2-50-1, Kuramoto-Cho, Tokushima city, Tokushima prefecture

TEL

088-633-7207

Homepage URL


Email

tfurukawa@tokushima-u.ac.jp


Sponsor or person

Institute

Tokushima University

Institute

Department

Personal name



Funding Source

Organization

Tokushima University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2016 Year 09 Month 14 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Enrolling by invitation

Date of protocol fixation

2016 Year 09 Month 14 Day

Date of IRB


Anticipated trial start date

2016 Year 11 Month 01 Day

Last follow-up date


Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2016 Year 09 Month 14 Day

Last modified on

2018 Year 03 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000027642


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name