Performance and Acceptability of iDesign

May 16, 2013 updated by: Abbott Medical Optics

A Prospective Study to Evaluate the Performance and Acceptability of the iDesign Advanced WaveScan Study(tm) System

The results of this trial will demonstrate that the iDesign System performs as intended and is acceptable in a clinical setting.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

LASIK treatment across the range of myopia with or without astigmatism, hyperopia with or without astigmatism, and mixed astigmatism.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
77

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • British Columbia
      • Victoria, British Columbia, Canada, V8X 1X2
        • Clearly LASIK
    • Manitoba
      • Winnipeg, Manitoba, Canada, R3C 3J5
        • Image Plus Laser Eye Center
    • Ontario
      • Ottawa, Ontario, Canada, K1H 8L6
        • University of Ottawa Eye Institute, The Ottawa Hospital
      • Toronto, Ontario, Canada, M4P 2E5
        • Yonge-Eglington Laser

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female, of any race, and at least 18 years old at the time the consent form is signed.
  • The refractive error, based on manifest refraction (adjusted for optical infinity), must be MRSE up to -15.00 D with manifest cylinder between 0.00 and -6.00 D; MRSE up to +9.00 D with cylinder between 0.00 and +6.00 D; or manifest cylinder (from 1.00 to 6.00 D) greater than the magnitude of sphere, and the cylinder and sphere have opposite signs.
  • BSCVA of 20/20 or better.

  • UCVA:

    • Myopes must be 20/40 or worse.
    • Subjects with Hyperopia or mixed astigmatism, treatment may be based on difficulty maintaining UCVA of 20/40 evidenced by spectacle/contact lens dependence for distance, as documented by the investigator.
  • Wavefront diameter ≥ 4.0 mm.
  • Sufficient agreement between manifest refraction (adjusted for optical infinity) and iDesign System refraction (sphere, cylinder, and axis) to allow treatment selection and generation of an ablation profile as determined by the investigational iDesign System software.
  • Manifest refraction sphere within ± 0.75 D of cycloplegic refraction sphere.
  • Anticipated post-operative stromal bed thickness of at least 250 microns, based on pre-operative central corneal pachymetry minus the maximum treatment depth to be ablated (as calculated by the iDesign System) and the intended flap thickness.
  • Anticipated post-operative keratometry value (based on pre-operative iDesign System refraction and keratometry) that is appropriate.
  • A stable refractive error (based on a previous exam, medical records, or prescription) as compared to the unadjusted pre-operative manifest refraction.
  • Subjects who currently wear contact lenses must demonstrate refractive stability in the operative eye. Rigid or toric lenses must be removed for at least 2 weeks and SCL for at least 3 days prior to the first refraction used to establish stability. A second refraction with a change of no more than ± 0.50 D MRSE at least 7 days after baseline.
  • Willing and capable of returning for follow-up examinations for the duration of the study.

Exclusion Criteria:

  • Women who are pregnant, breast-feeding, or intend to become pregnant over the course of the study, as determined by verbal inquiry, or another condition associated with the fluctuation of hormones that could lead to refractive changes.
  • Subjects with an ametropic or amblyopic fellow eye not meeting all inclusion criteria that does not fall within the indications for treatment using the VISX® STAR S4 IR™ Excimer Laser.
  • Concurrent use of systemic (including inhaled) medications that may impair healing, including but not limited to: steroids, antimetabolites, isotretinoin (Accutane™) within 6 months of treatment, and amiodarone hydrochloride (Cordarone™) within 12 months of treatment.
  • Acute or chronic disease, illness, or treatment that would increase the operative risk (e.g., immuno-compromised, autoimmune disease, connective tissue disease, clinically significant atopic disease, diabetes, etc.).
  • Subjects with a cardiac pacemaker, implanted defibrillator, implanted neurostimulator, or any active electrical implants.
  • Ocular condition (other than high myopia) that may predispose the subject to future complications, such as history or evidence of active or inactive corneal disease
  • Previous intraocular or corneal surgery that might confound the outcome of the study or increase risk to the subject.
  • Known sensitivity or inappropriate responsiveness to any of the medications used in the post-operative course.
  • Concurrent participation in any other clinical study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Refractive Error
Device: STAR S4IR LASIK with iDesign Aberrometer
CustomVue LASIK targeted for emmetropia
Other Names:
  • CustomVue

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Percentage of Eyes With Uncorrected Visual Acuity (UCVA) of 20/40 or Better.
Time Frame: 6 months
6 months

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Eyes With Loss of More Than 2 Lines Best Spectacle Corrected Visual Acuity (BSCVA)
Time Frame: 6 Months
6 Months
Percentage of Eyes With Manifest Refraction Spherical Equivalent Within 1.0 D
Time Frame: 6 months
6 months
Percentage of Eyes With Best Spectacle Corrected Visual Acuity (BSCVA) Worse Than 20/40
Time Frame: 6 Months
6 Months
Percentage of Eyes With Induced Manifest Refractive Astigmatism Greater Than 2.00 D of Absolute Cylinder as Compared to the Preoperative Refraction
Time Frame: 6 Months
Induced Manifest Refractive Astigmatism is an increase of astigmatism (cylinder) postoperatively that could be caused by the refractive treatment. An increase of greater than 2.0 D is considered a safety endpoint per ANSI Z80.11-2007.
6 Months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Abbott Medical Optics

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 24, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 12, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 14, 2010

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 20, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 16, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • STAR-108-IDSN

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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