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Anesthetic Effect of Lidocaine/Epinephrine Solution Delivered Via Iontophoresis to External Auditory Apparatus (IONTO)

This study has been completed.
Information provided by (Responsible Party):
Acclarent Identifier:
First received: July 14, 2009
Last updated: July 2, 2014
Last verified: July 2014
This is a non-randomized, multicenter, prospective, clinical study intended to evaluate the effectiveness of a method for iontophoretic delivery of a buffered lidocaine/epinephrine solution for provision of tympanic membrane anesthesia in patients who are indicated for an ear procedure requiring penetration of the tympanic membrane, including, but not limited to, myringotomy, tympanocentesis with culture or tympanostomy with tube placement.

Condition Intervention
Acute Otitis Media
Chronic Otitis Media
Recurrent Acute Otitis Media
Device: Iontophoresis System (Acclarent)

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Official Title: First in Man Evaluation of the Anesthetic Effect of Lidocaine/Epinephrine Solution Delivered Via Iontophoresis to the External Auditory Apparatus (FIM Iontophoresis Study)

Resource links provided by NLM:

Further study details as provided by Acclarent:

Primary Outcome Measures:
  • Proportion of Subjects Who Achieved Anesthesia Effectiveness Per Investigator Assessment [ Time Frame: Day 0 ]
    Investigator performed a gentle tap of the tympanic membrane to assess whether adequate anesthesia was achieved following local anesthesia by iontophoresis. All subjects for which an ear procedure was attempted were considered to have achieved anesthesia effectiveness.

  • Evaluate Any Adverse Effects Associated With the Iontophoresis System (Adverse Device Effects). [ Time Frame: Day 0 ]

Secondary Outcome Measures:
  • Patient Tolerability of Iontophoresis Procedure Will be Measured Using a Wong Baker Faces Pain Scale [ Time Frame: Day 0 ]

    Includes all subjects for whom Iontophoresis current delivery was initiated.

    The Wong-Baker FACES pain scoring system is a scale of 0 to 5, where 0 means 'no hurt', 1 = 'hurts a little bit', 2 = 'hurts little more', 3 = 'hurts even more', 4 = 'hurts whole lot' and 5 = 'hurts worst'.

    The Wong-Baker scores are reported by subject.

  • Subject/Parent Reported Satisfaction With the In-office Procedure [ Time Frame: Day 0 ]

    Adult subjects or parents of pediatric subjects were asked to rate their agreement or disagreement with the statement: 'Overall, I am satisfied with the whole procedure'. Response options included: 'Strongly Disagree', 'Disagree', 'Neutral', 'Agree' or 'Strongly Agree'. The number of respondents who reported that they 'agree' or 'strongly agree' that they were satisfied with the whole procedure are reported.

    The analysis population does not include the full study cohort as this survey question was implemented during, not prior to, the enrollment period.

Other Outcome Measures:
  • Patient Tolerability of In-office Ear Treatment Using the Wong Baker FACES Pain Scale. [ Time Frame: Day 0 ]

    The Wong-Baker FACES pain scoring system is a subject-reported instrument using a scale of 0 to 5, where 0 means 'no hurt', 1 = 'hurts a little bit', 2 = 'hurts little more', 3 = 'hurts even more', 4 = 'hurts whole lot' and 5 = 'hurts worst'.

    Pain scores were recorded for all subjects for which an ear procedure was attempted.Pain scores are presented by subject, as an average of pain scores for both ears.

Enrollment: 109
Study Start Date: April 2008
Study Completion Date: January 2011
Primary Completion Date: January 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: local anesthesia
tympanic membrane local anesthesia delivery system
Device: Iontophoresis System (Acclarent)
Iontophoresis system will deliver iontophoresis simultaneously to both ears. Active elements of this drug delivery system are lidocaine and epinephrine.
Other Name: Acclarent


Ages Eligible for Study:   12 Months and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Age 12 months and older
  2. Both male and female patients eligible
  3. Patients are indicated for procedures requiring penetration of the tympanic membrane (including, but not limited to, myringotomy, tympanocentesis with culture or tympanostomy with tube implant)

Exclusion Criteria:

  1. Patients with a history of sensitivity or reaction to lidocaine, epinephrine or any hypersensitivity to local anesthetics of the amide type or any component of the drug solution
  2. Markedly atrophic, retracted, atelectatic or perforated tympanic membrane
  3. Otitis externa
  4. Electrically sensitive patients and patients with electrically sensitive support systems (pacemakers, defibrillators, etc.)
  5. Damaged or denuded skin in the auditory canal
  6. Cerumen impaction resulting in a significant amount of cleaning required to visualize the tympanic membrane
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Please refer to this study by its identifier: NCT00941993

United States, South Carolina
Spartanburg ENT
Spartanburg, South Carolina, United States, 29303
Sponsors and Collaborators
Principal Investigator: Henry "Fritz" Butehorn, III, MD Spartanburg ENT
  More Information

Responsible Party: Acclarent Identifier: NCT00941993     History of Changes
Other Study ID Numbers: CPR005000
Study First Received: July 14, 2009
Results First Received: July 2, 2014
Last Updated: July 2, 2014

Additional relevant MeSH terms:
Otitis Media
Ear Diseases
Otorhinolaryngologic Diseases
Epinephryl borate
Central Nervous System Depressants
Physiological Effects of Drugs
Anesthetics, Local
Sensory System Agents
Peripheral Nervous System Agents
Anti-Arrhythmia Agents
Voltage-Gated Sodium Channel Blockers
Sodium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Adrenergic alpha-Agonists
Adrenergic Agonists
Adrenergic Agents
Neurotransmitter Agents
Adrenergic beta-Agonists
Bronchodilator Agents
Autonomic Agents
Anti-Asthmatic Agents
Respiratory System Agents
Sympathomimetics processed this record on May 25, 2017