Effect of Dalfampridine (4-AP) on Genioglossus Muscle Activity in Healthy Adults

NCT ID: NCT02656160

Last Updated: 2017-08-15

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

13 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-01-31

Study Completion Date

2016-07-31

Brief Summary

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In this protocol the investigators will test the effect of dalfampridine (a potassium channel blocker) on genioglossus muscle activity (EMG GG) during wakefulness and sleep in healthy control subjects.

Detailed Description

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Two overnight sleep studies, a placebo night and a drug night, will be performed approximately one week apart in random order. The placebo or drug will be administered 3 hours before lights out. At least 10 minutes of quiet wakefulness will be recorded to quantify the subject's awake EMG GG activity before the administration of placebo/dalfampridine.

EMG GG activity will be measured again 10 mins before lights off and during stable NREM and REM sleep (free of arousals and other artifacts).

During the second part of the night, the subjects will be connected to a modified continuous positive airway pressure (CPAP) machine (Pcrit3000, Respironics) which can provide a wide range of pressures between 20 and -20 cmH2O in order to modify upper airway pressure and measure change in EMG GG as a function of epiglottic pressure (muscle responsiveness).

Conditions

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Sleep Apnea, Obstructive

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

Study Groups

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Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo 3 hrs before sleep

Dalfampridine

Group Type ACTIVE_COMPARATOR

Dalfampridine

Intervention Type DRUG

Dalfampridine 10 mg extended release 3 hrs before sleep

Interventions

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Placebo

Placebo 3 hrs before sleep

Intervention Type DRUG

Dalfampridine

Dalfampridine 10 mg extended release 3 hrs before sleep

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Healthy control subjects

Exclusion Criteria

* Cardiovascular disease other than well controlled hypertension
* History of seizures
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Brigham and Women's Hospital

OTHER

Sponsor Role lead

Responsible Party

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David Andrew Wellman

Director, Sleep Disordered Breathing Lab, Brigham and Women's Hospital

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Sleep Disorders Research Program Brigham and Women's Hospital

Boston, Massachusetts, United States

Site Status

Countries

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United States

References

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Taranto-Montemurro L, Sands SA, Azarbarzin A, Marques M, de Melo CM, Edwards BA, Eckert DJ, Messineo L, White DP, Wellman A. Effect of 4-Aminopyridine on Genioglossus Muscle Activity during Sleep in Healthy Adults. Ann Am Thorac Soc. 2017 Jul;14(7):1177-1183. doi: 10.1513/AnnalsATS.201701-006OC.

Reference Type DERIVED
PMID: 28387543 (View on PubMed)

Other Identifiers

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BWH-2014P001033C

Identifier Type: -

Identifier Source: org_study_id

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