Relief of Acute Bronchoconstriction/Asthma Using the Non-Invasive AlphaCore Device

NCT ID: NCT01532817

Last Updated: 2018-04-09

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-01-31

Study Completion Date

2012-05-31

Brief Summary

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The purpose of this pilot study is to collect preliminary clinical data related to the safety and preliminary clinical benefits of non-invasive vagal nerve stimulation with the AlphaCore™ device for the relief of acute bronchoconstriction due to asthma.

Up to 30 subjects who meet all inclusion/exclusion criteria and consent to participate in the study may be enrolled at up to 5 investigational (study) sites. The study sites are clinic settings capable of treating any potential complications of bronchoconstriction, an acute exacerbation of asthma, and any emergencies associated with use of the investigational device.

Detailed Description

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Subjects will be screened, consented and enrolled at the first visit. Subjects will return to the second visit where they are experiencing shortness of breath and will be treated with the alphacore. Breathing and vital signs will be measured before, during and after the stimulation. The study is concluded on the third visit, 7 days later.

Conditions

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Asthma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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alphacore

noninvasive neurostimulation of the vagus nerve

Group Type EXPERIMENTAL

AlphaCore

Intervention Type DEVICE

A single 90 second stimulation to the vagus nerve on the right side of the neck

Interventions

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AlphaCore

A single 90 second stimulation to the vagus nerve on the right side of the neck

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

1. Is able to give written Informed Consent.
2. Is between the ages of 18 and 65 years, male or female.
3. Has a known history of mild to moderate asthma for at least 1 year as defined by GINA Guidelines.
4. Is using a short acting beta-agonist for relief/rescue of asthma..
5. At Visit 1, demonstrates current or historical (within 1 year) FEV1 reversibility of at least 12% (and 200ml) or greater within 15-30 minutes following administration of 4 inhalations of albuterol.

Exclusion Criteria

1. Has a history of lung cancer, chronic obstructive pulmonary disease (COPD), or other co-morbidity associated with irreversible narrowing of the airways.
2. Has an abscess or other infection or lesion (including lymphadenopathy) at the AlphaCore™ treatment site.
3. Has known or suspected moderate to severe atherosclerotic cardiovascular disease, carotid artery disease (e.g. bruits or history of TIA or CVA) or congestive heart failure (CHF).
4. Has suspected or confirmed sepsis.
5. Has a clinically significant irregular heart rate or rhythm.
6. Has experienced recent clinically significant changes in blood pressure, has uncontrolled high blood pressure, or is presently receiving pressors to maintain blood pressure.
7. Is currently implanted with an electrical and/or neurostimulator device, including but not limited to cardiac pacemaker, defibrillator, vagal neurostimulator, deep brain stimulator, spinal stimulator, bone growth stimulator, or cochlear implant.
8. Has a history of carotid endarterectomy or vascular neck surgery on the right side.
9. Has been implanted with metal cervical spine hardware.
10. Has a recent or repeated history of syncope.
11. Has a recent or repeated history of seizures.
12. Is pregnant or nursing, or of childbearing years and is unwilling to use an accepted form of birth control.
13. Is participating in any other therapeutic clinical investigation or has participated in a clinical trial in the preceding 30 days.
14. Belongs to a vulnerable population or has any condition such that his or her ability to provide informed consent, comply with follow-up requirements, or provide self-assessments is compromised (e.g., homeless, developmentally disabled, prisoner).
15. Is a relative of or an employee of the Investigator or the clinical study site.

2. Either (i) develops subjective symptoms of asthma (wheezing, shortness of breath, cough) for which the patient would normally self-medicate with a short acting beta agonist, and/or (ii) documents a drop of 20% from screening PEF scores as recorded in their patient diary.
3. At Visit 2, FEV1 is the same or lower than the screening FEV1 previously measured at visit 1 or the PEF is the same or lower than the screening previously measured at Visit 1.


1. The patient self-administered a short-acting beta agonist within 6 hours prior to onset of asthma symptoms.
2. The patient induced an asthma exacerbation by withholding their pre-treatment medication used for exercise-induced bronchoconstriction (EIB).
3. Has signs and symptoms of asthma instability at Visit 2:

* Lung Function: FEV1 \< 50 % predicted.
* Signs and symptoms of extreme respiratory distress at rest.
* Rapid deterioration in respiratory status (sudden change in respiratory rate, decrease in oxygen saturation, change in consciousness, etc.).
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ElectroCore INC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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John Erico

Role: STUDY_CHAIR

ElectroCore INC

Locations

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Allergy and Asthma

San Diego, California, United States

Site Status

CRI

Minneapolis, Minnesota, United States

Site Status

Vital Prospects Clinical Research Institute

Tulsa, Oklahoma, United States

Site Status

Countries

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United States

Other Identifiers

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BC-US-06

Identifier Type: -

Identifier Source: org_study_id

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