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Pain Control During Intravitreal InjectionsEyebratorNCT03079713

Handheld Vibrator Versus Topical Eye Drops as Anesthesia for Intravitreal Injections

A study testing Handheld vibrator triggered during intravitreal injection for wet ARMD, Normal eye esthesiometry with and without vibration and Handheld vibrator not triggered during intravitreal injection for wet ARMD in people with Pain Control During Intravitreal Injections, run by Wills Eye at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Intravitreal injections are an efficient method of delivering therapeutic levels of medications to the posterior segment of the eye. Prior to receiving an injection, there are various methods to provide ocular anesthesia. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
What is being tested?
Handheld vibrator triggered during intravitreal injection for wet ARMD, Normal eye esthesiometry with and without vibration and Handheld vibrator not triggered during intravitreal injection for wet ARMD
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
110 participants
Where
1 siteUnited States
Study dates
12 Apr 2017to 20 Mar 2019
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Clinical diagnosis of neovascular age related macular degeneration requiring anti-VEGF intravitreal injection in the routine course of their care

Who cannot join

  • History of endophthalmitis, prior ocular surgery except cataract surgery, globe rupture, retinal detachment, neurotrophic keratopathy, a history of corneal epithelial basement membrane dystrophy, recent corneal abrasion or trauma, history of infectious keratitis, lower eyelid pathology, those with a previously documented hypersensitivity to ophthalmic 5% povidone-iodine solution (Betadine; Alcon Labs, Fort Worth, TX) or inability to grade pain using the pain scale, pregnant patients, institutionalized patients (nursing home residents, prisoners), those with a history of diabetes

Trial locations and contacts

1 site in 1 country.

United States1 site
  • MidAtlantic Retina-Wills Eye Hospital

    Philadelphia, Pennsylvania, 19107

Other trials in United States

About this study

Official title: Comparison of Handheld Vibrator to Topical Eye Drops as Anesthesia for Intravitreal Injections

Intravitreal injections are an efficient method of delivering therapeutic levels of medications to the posterior segment of the eye. Prior to receiving an injection, there are various methods to provide ocular anesthesia. Vibration may have an anti-nociceptive effect by directly decreasing the sensitivity of peripheral nociceptors or by reducing signal transmission from peripheral nociceptors to the brain with activation of vibratory sensation pathways. The purpose of this study is to evaluate the use of a handheld fingertip vibrator compared to topical eye drops for pain control while performing intravitreal eye injections. A secondary objective of the study is to measure corneal and conjunctiva sensitivity with and without activation of the vibrator to the lower lid using a Luneau Cochet-Bonnet aesthesiometer.

Read the detailed description

A total of 80 patients will be recruited for part 1 of the study. Participants will be randomized in a 1:1 ratio to a standard anesthetic group or standard anesthetic with vibration groups. All intravitreal drugs will be delivered via 30 gauge needles through the pars plana in the inferotemporal quadrant 3.5 to 4 mm posterior to the limbus. Once recruited, a single eye requiring injection for each enrolled patient will be randomized into 1 of 2 groups: aesthesiometer measurement alone with sham vibration (vibrator will not be triggered) (Group 1) or handheld vibrator application and triggering followed by aesthesiometer measurement (Group 2). The vibrator will be applied to the lower eyelid while retracting it during standard intravitreal injection prepped with topical anesthetic (Proparacaine 1%) and Betadine. The main outcome measure of will be patient comfort, as measured by the patient using a standardized Wong-Baker FACES Pain Rating Scale.

An additional 30 eyes of 30 healthy patients not requiring intravitreal injection will be recruited to determine the effect of vibrator application and triggering to the lower lid on corneal and conjunctival (inferotemporal quadrant) sensation as measured using an aesthesiometer. No topical anesthetic will be applied prior to esthesiometry measurements are taken with and without vibration triggering.

All patient identifying information will be removed and patients will be identified with a random number. Data will be checked regularly by a data monitoring committee. Patient records will be reviewed and the following data will be collected: demographic data (age, gender, injected eye, reason for injection), best-corrected visual acuity, intraocular pressure, and complications/adverse events associated with intravitreal injections. Statistical analyses will include univariate comparisons between treatment groups using the Student t-test for continuous variables and χ2 test or Fisher's exact test for categorical variables.

Being tested
Handheld vibrator triggered during intravitreal injection for wet ARMD, Normal eye esthesiometry with and without vibration, Handheld vibrator not triggered during intravitreal injection for wet ARMD
Keywords
pain, anesthesia, vibrator, intravitreal, injection
Medical subject headings
Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Handheld vibrator triggered during intravitreal injection for wet ARMDDevice

    A vibratory device cleaned with alcohol swabs between each use will be attached to the injectors' finger, placed on the lower eyelid of the treatment eye, and triggered during intravitreal injection

  • Normal eye esthesiometry with and without vibrationDevice

    Healthy patients will undergo corneal and conjunctival esthesiometry with and without triggering of the wearable vibrator placed upon the lower lid of a single eye.

  • Handheld vibrator not triggered during intravitreal injection for wet ARMDDevice

    Control group undergoing standard intravitreal injection without triggering of the vibrator.

Study groups in NCT03079713
Study groupRoleWhat they receive
Vibratory AnesthesiaExperimentalFollowing administration of topical anesthetic and betadine, wearable vibrator will be triggered prior to and during the intravitreal injection
Receives: Device: Handheld vibrator triggered during intravitreal injection for wet ARMD
Standard Injection.Sham comparatorFollowing administration of topical anesthetic and betadine, wearable vibrator will be placed against the lower lid but NOT triggered prior to and during the intravitreal injection
Receives: Device: Handheld vibrator not triggered during intravitreal injection for wet ARMD
Vibratory Anesthesia with Corneal/Conjunctival Sensation TestExperimentalHealthy patients not requiring intravitreal injection will be subjected to corneal and conjunctival aesthesiometry with and without the vibrator triggered while in contact with the lower eyelid of a single eye.
Receives: Device: Normal eye esthesiometry with and without vibration

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain assessment

    Pain is assessed by Wong-Baker FACES Pain Rating Scale (score ranging from 0 to 10) immediately after the intravitreal injection

    Measured: Immediately after intravitreal injection

Secondary outcomes (1)
  1. Corneal and conjunctival sensitivity

    Corneal and conjunctival sensitivity, as measured using an aesthesiometer

    Measured: immediately after application of a handheld vibrator

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Mar 2017
  2. Study start12 Apr 2017
  3. Primary completion24 Jan 2018
  4. Study completion20 Mar 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
110 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03079713
Sponsor's protocol ID
16-600E
Acronym
Eyebrator
Status last verified
May 2019
First submitted
8 Mar 2017
Last updated
9 May 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Friedman SM, Margo CE. Topical gel vs subconjunctival lidocaine for intravitreous injection: a randomized clinical trial. Am J Ophthalmol. 2006 Nov;142(5):887-8. doi: 10.1016/j.ajo.2006.06.033.

    PubMed 17056383
  • Kaderli B, Avci R. Comparison of topical and subconjunctival anesthesia in intravitreal injection administrations. Eur J Ophthalmol. 2006 Sep-Oct;16(5):718-21. doi: 10.1177/112067210601600509.

    PubMed 17061223
  • Cintra LP, Lucena LR, Da Silva JA, Costa RA, Scott IU, Jorge R. Comparative study of analgesic effectiveness using three different anesthetic techniques for intravitreal injection of bevacizumab. Ophthalmic Surg Lasers Imaging. 2009 Jan-Feb;40(1):13-8. doi: 10.3928/15428877-20090101-05.

    PubMed 19205490
  • Karabas VL, Ozkan B, Kocer CA, Altintas O, Pirhan D, Yuksel N. Comparison of two anesthetic methods for intravitreal ozurdex injection. J Ophthalmol. 2015;2015:861535. doi: 10.1155/2015/861535. Epub 2015 Apr 9.

    PubMed 25949822
  • Ornek N, Apan A, Ornek K, Gunay F. Anesthetic effectiveness of topical levobupivacaine 0.75% versus topical proparacaine 0.5% for intravitreal injections. Saudi J Anaesth. 2014 Apr;8(2):198-201. doi: 10.4103/1658-354X.130713.

    PubMed 24843332
  • Lundeberg TC. Vibratory stimulation for the alleviation of chronic pain. Acta Physiol Scand Suppl. 1983;523:1-51.

    PubMed 6609524
  • Smith KC, Comite SL, Balasubramanian S, Carver A, Liu JF. Vibration anesthesia: a noninvasive method of reducing discomfort prior to dermatologic procedures. Dermatol Online J. 2004 Oct 15;10(2):1.

    PubMed 15530291
  • Aminabadi NA, Farahani RM, Balayi Gajan E. The efficacy of distraction and counterstimulation in the reduction of pain reaction to intraoral injection by pediatric patients. J Contemp Dent Pract. 2008 Sep 1;9(6):33-40.

    PubMed 18784857
  • Bagherian A, Sheikhfathollahi M. Children's behavioral pain reactions during local anesthetic injection using cotton-roll vibration method compared with routine topical anesthesia: A randomized controlled trial. Dent Res J (Isfahan). 2016 May-Jun;13(3):272-7. doi: 10.4103/1735-3327.182189.

    PubMed 27274349
  • Nanitsos E, Vartuli R, Forte A, Dennison PJ, Peck CC. The effect of vibration on pain during local anaesthesia injections. Aust Dent J. 2009 Jun;54(2):94-100. doi: 10.1111/j.1834-7819.2009.01100.x.

    PubMed 19473149

Questions about this trial

What is this clinical trial studying?

A study testing Handheld vibrator triggered during intravitreal injection for wet ARMD, Normal eye esthesiometry with and without vibration and Handheld vibrator not triggered during intravitreal injection for wet ARMD in people with Pain Control During Intravitreal Injections, run by Wills Eye at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 May 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain assessment (time frame: Immediately after intravitreal injection). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03079713, which also lists 10 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 May 2019.

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