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AmblyopiaPhase 1NCT04784390

Proof of Concept Study of Binocular Videogames Versus Patching for Amblyopia

A Phase 1 study testing Binocular video games and Patching of the sound eye in people with Amblyopia, run by Novartis Pharmaceuticals at 8 sites in 3 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this PoC study was to evaluate the potential therapeutic efficacy of binocular video games played on a tablet and to compare the efficacy of binocular video games versus patching in amblyopic patients 4 to 7 years old (Part A) as well as to gain experience with binocular video games in older children… Read more about this study

Who is it for?
Ages 4 to 12 years
Conditions the study is for
Amblyopia
What is being tested?
Binocular video games and Patching of the sound eye
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
27 participants
Where
8 sitesin 3 countries
Study dates
30 Jun 2021to 3 Aug 2022
Phase
Phase 1
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 4 to 12 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Written informed consent must be signed by the parent(s) or legal guardian(s) prior to participation in the study.
  • Male or female children 4 to 7 years old at Screening (Part A) or 8 to 12 years old at Screening (Part B).
  • Diagnosis of amblyopia due to strabismus, anisometropia, or both.
  • Best corrected visual acuity (BCVA) of amblyopic eye (study eye) between 0.3 to 1.0 Logarithm of the Minimum Angle of Resolution (logMAR) (20/40 to 20/200 Snellen inclusive, 33 to 72 ETDRS letters inclusive) at Screening and Baseline.
  • BCVA of the sound eye (fellow eye) 0.1 logMAR (20/25 Snellen, 80 Early Treatment Diabetic Retinopathy Study (ETDRS) letters) or better in children 5 years of age and older or 0.2 logMAR (20/30 Snellen, 75 ETDRS letters) or better in children 4 years of age at Screening and Baseline.
  • Interocular difference of BCVA at least 0.3 logMAR (≥3 lines; ETDRS≥15 letters) at Baseline.
  • Patient is able to play the binocular game (Dig Rush and Monster Burner) on at least level 3 on the study tablet under binocular conditions (with red-green glasses).

Who cannot join

  • Treatment for amblyopia with patching, Bangerter filter, vision therapy, or binocular treatment in the past 1 week prior to Screening, or atropine in the past 4 weeks prior to Screening.
  • Treatment for amblyopia with patching, Bangerter filter, vision therapy, binocular treatment or atropine for more than 1 year prior to screening cumulatively.
  • Myopia ≥ -6.00D spheric equivalent in either eye at Screening or Baseline.
  • Prior amblyopia treatment (patching, Bangerter filter, vision therapy, binocular treatment or atropine) for more than a year prior to screening cumulatively.

Trial locations and contacts

8 sites in 3 countries.

8 sites in 3 countries

United States5 sites
  • Novartis Investigative Site

    Chicago, Illinois, 60611

  • Novartis Investigative Site

    Frederick, Maryland, 21703

  • Novartis Investigative Site

    Gainesville, Florida, 32605

  • Novartis Investigative Site

    Las Vegas, Nevada, 98102

  • Novartis Investigative Site

    Maitland, Florida, 32751

Other trials in United States

Canada2 sites
  • Novartis Investigative Site

    Kitchener, Ontario, N2A 0K5

  • Novartis Investigative Site

    Waterloo, Ontario, N2L3G1

Other trials in Canada

Australia1 site
  • Novartis Investigative Site

    North Ryde, New South Wales, 2109

Other trials in Australia

About this study

Official title: A 16 Week Randomized, Single-masked, Multicenter Proof of Concept Study of Binocular Videogames Versus Patching for Amblyopia in Children 4-7 Years of Age With an Open-label Substudy of Binocular Videogames in Children 8-12 Years of Age

The purpose of this PoC study was to evaluate the potential therapeutic efficacy of binocular video games played on a tablet and to compare the efficacy of binocular video games versus patching in amblyopic patients 4 to 7 years old (Part A) as well as to gain experience with binocular video games in older children population of 8 to12 years old (Part B).

Part A and Part B was designed to provide long term data on durability of binocular video games treatment.

The study consisted of two parts, Part A: randomized, single masked PoC study in children 4 to 7 years old at Screening, and Part B: open-label substudy in children 8 to 12 year old at Screening.

Read the detailed description

The clinical investigation consisted of 2 parts:

  • Part A: a single-masked, randomized clinical investigation in subjects 4 to 7 years of age.
  • Part B: an open-label, non-randomized sub-investigation in subjects 8 to 12 years of age.

Part A was a 16-week, prospective, randomized, single-masked, multicenter, controlled, 2 arm, parallel-group clinical investigation in subjects 4 to 7 years of age with amblyopia. Subjects were randomly assigned in a 1:1 ratio to either binocular videogame treatment for 8 to 12 weeks or patching treatment for 16 weeks. Randomization was stratified by severity of amblyopia in eligible subjects (moderate amblyopia with best-corrected visual acuity (BCVA) of the amblyopic eye of 20/100 or better, or severe amblyopia with BCVA of the amblyopic eye worse than 20/100).

Part B was a 16-week, open-label, single arm sub investigation in subjects 8 to 12 years of age with amblyopia, in which selected sites could participate. Subjects received binocular videogame treatment for 8 weeks, followed by 8 weeks of follow-up.

Conditions
Amblyopia
Being tested
Binocular video games, Patching of the sound eye
Keywords
DDO001, amblyopia, binocular video games, patching, eye disorder, lazy eye, unable to focus in one eye, eye muscle disorder, wandering eye, abnormal vision development
Medical subject headings
Amblyopia, Eye Diseases

What participants receive

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

  • Binocular video gamesDevice

    Patients will play 1 hour of binocular video game of choice (Dig Rush and/or Monster Burner) a day 7 days a week for 8 to 12 weeks.

  • Patching of the sound eyeDevice

    Patients will have their sound eye (fellow eye) patched 2 hours per day 7 days a week for 16 weeks.

Study groups in NCT04784390
Study groupRoleWhat they receive
PatchingActive comparatorPatching of the sound eye (fellow eye) - patients will have their sound eye (fellow eye) patched 2 hours per day 7 days a week for 16 weeks.
Receives: Device: Patching of the sound eye
Binocular video gamesExperimentalBinocular video games - patients will play 1 hour of binocular video game of choice (Dig Rush and/or Monster Burner) a day 7 days a week for 8 to 12 weeks.
Receives: Device: Binocular video games

What is being measured

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

  1. Change in best corrected visual acuity (BCVA) in the amblyopic eye.

    Part A: Best corrected visual acuity (BCVA) in the amblyopic eye will be measured via mixed model repeated measures (MMRM).

    Measured: from Baseline to Week 8

Secondary outcomes (9)
  1. Attain BCVA of 0.1 logMAR or better in the amblyopic eye

    Part A: Best corrected visual acuity (BCVA) in the amblyopic eye will be measured via mixed model repeated measures (MMRM).

    Measured: at Week 4, Week 8, Week 12, and Week 16.

  2. Change in stereoacuity or binocular video game relative to patching.

    Part A: Stereoacuity will be assessed at near using Randot Preschool Stereoacuity Test (Stereo Optical, Inc.).

    The test is performed using 3 stereotest booklets while wearing 3D glasses. In short, in each test booklet, the left-hand page shows two-dimensional black-and-white silhouettes of two sets (panels) of four test shapes. The right-hand page contains two sets of four random-dot patterns in different sequences that are on the left-hand page. In each set of random-dot patterns, one contains no test shape, while the remaining contains test shapes. The child must correctly identify at least two of the three test shapes at each disparity level.

    Measured: from Baseline to Week 4, Week 8, Week 12, and Week 16.

  3. Attain a 2-line or better improvement in BCVA in the amblyopic eye

    Part A: Best corrected visual acuity (BCVA) in the amblyopic eye will be measured via mixed model repeated measures (MMRM).

    Measured: at Week 4, Week 8, Week 12, and Week 16.

  4. Change in BCVA in the amblyopic eye

    Part A: Best corrected visual acuity (BCVA) in the amblyopic eye will be measured via mixed model repeated measures (MMRM).

    Measured: from Baseline to Week 4, Week 12, and Week 16.

  5. Frequency of treatment-emergent Adverse Events

    Part A and B: An adverse event (AE) is any untoward medical occurrence (e.g. any unfavorable and unintended sign [including abnormal laboratory findings], symptom or disease) in a clinical study subject, user or other person, after providing written informed consent for participation in the study. Therefore, an AE may or may not be temporally or causally associated with the use of the study device, i.e., videogame system (tablet, software, 3D glasses) or patch.

    Measured: from Baseline to week 16

  6. Time played as recorded in the diary

    Part A: To assess compliance with treatment

    Measured: from Baseline to week 12

  7. Time patched as recorded in the diary

    Part A: To assess compliance with treatment

    Measured: from Baseline to week 16

  8. Time played as recorded in the video game system

    Parts A and B: To assess compliance with treatment

    Measured: from Baseline to week 12

  9. Percentage of participants who complete at least 75% of prescribed game play

    Parts A and B: To assess compliance with treatment

    Measured: from Baseline to Week 12

Timeline

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

  1. First posted5 Mar 2021
  2. Study start30 Jun 2021
  3. Primary completion3 Aug 2022
  4. Study completion3 Aug 2022

Why it stopped: The study was terminated based upon the competitive landscape and strategic fit.

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 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
27 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04784390
Sponsor's protocol ID
CDDO001F12201
Status last verified
May 2023
First submitted
2 Mar 2021
Last updated
23 May 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Binocular video games and Patching of the sound eye in people with Amblyopia, run by Novartis Pharmaceuticals at 8 sites in 3 countries.

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 7 inclusion and 4 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: stopped early, as of the sponsor's last update on 23 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in United States, Canada, Australia. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: The study was terminated based upon the competitive landscape and strategic fit.). Results are not available in the source record.

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?

Change in best corrected visual acuity (BCVA) in the amblyopic eye. (time frame: from Baseline to Week 8). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 23 May 2023.

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