Patient Reported Outcomes With LASIK: PROWL-2 (PROWL-2)

February 6, 2018 updated by: Food and Drug Administration (FDA)

Patient-Reported Outcomes With LASIK: PROWL-2

This study evaluates a questionaire designed to measure satisfaction and ophthalmic-related quality of life (QoL) of 300 civilian participants prior to and three months following state-of-the-art laser in situ keratomileusis (LASIK).

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

The LASIK Quality of Life Collaboration Project (LQOLCP) is a government partnership among the FDA's Center for Devices and Radiological Health (CDRH), the Department of Defense, and the National Eye Institute (NEI). This project examines patient-reported outcomes (PROs) following LASIK surgery. This three-phased project is part of FDA's ongoing effort to better monitor and improve the safety and effectiveness of lasers used in LASIK surgery. PROWL-2 is the third phase of the larger LQOLCP project. The primary objective of PROWL-2 is to explore the psychometric properties of a computer-based questionnaire assessing the patient-reported outcomes of satisfaction and ophthalmic-related quality of life before and over a period of 3 months following LASIK. This questionnaire initially developed and examined in PROWL-1 (a military population) will be examined psychometrically in a civilian population. PROWL-2 is a prospective, multi-center, observational study in which a participant's pre-operative status will serve as the baseline for one-month and three-month post-surgical comparisons. Three hundred (300) participants planning to undergo refractive surgery using LASIK for myopia, hyperopia, or astigmatism will be enrolled in this study from five (5) clinical sites across the United States. Additionally, routine clinical data will be collected pre- and post-operatively (e.g., best corrected visual acuity, manifest refraction, wavefront aberrometry, conreal topography, and other clinical assessments) and questionnaires will be independently administered pre-operatively and at the one-month and three-month post-operative visits.

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.
Observational

Enrollment (Anticipated)

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.
300

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

  • United States
    • California
      • Stanford, California, United States, 94304
        • Stanford University School of Medicine
    • Indiana
      • Indianapolis, Indiana, United States, 46240
        • 20/20 Institute
    • Kansas
      • Overland Park, Kansas, United States, 66211
        • Durrie Vision
    • Maryland
      • Baltimore, Maryland, United States, 21205
        • Johns Hopkins University School Of Medicine
    • South Dakota
      • Sioux Falls, South Dakota, United States, 57105
        • Vance Thompson Vision

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

21 years to 84 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Individuals age of 21 to 84 years planning to undergo refractive surgery using LASIK for myopia, hyperopia, or astigmatism

Description

Inclusion Criteria:

  • Investigators will be instructed to base subject eligibility on the Professional Use Information for their specific laser and keratome system, including but not limited to subjects who:
  • Are aged 21 years or older.
  • Have the ability to give informed consent.
  • Speak and read English fluently.
  • Have not previously had any form of refractive surgery, including prior LASIK or cataract surgery.
  • May benefit from increased spectacle independence.
  • Have been determined to be a good candidate for the LASIK procedure based on the investigator's assessment of medical and ophthalmic health, general cognitive function, and physical and social limitations.
  • Have a treatment target of bilateral emmetropia. Of note, an eye must be treated within 7 days of the fellow eye.
  • Express willingness and potential ability to return for all follow-up examinations through the 3-month follow-up exam under the care of the treating investigator.
  • Have access to a computer with internet service.

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

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
LASIK
Individuals aged 21 to 84 years planning to undergo refractive surgery using LASIK for myopia, hyperopia, or astigmatism
Procedure: LASIK
Laser eye surgery
Other Names:
  • Refractive surgery using LASIK for myopia, hyperopia, or astigmatism

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.
Food and Drug Administration (FDA)

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Eye Institute (NEI)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

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.
July 1, 2012

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).
July 30, 2012

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.
July 31, 2012

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.
August 1, 2012

Study Record Updates

Last Update Posted (Actual)

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.
February 8, 2018

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.
February 6, 2018

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.
February 1, 2018

More Information

Terms related to this study

Keywords

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.
  • 20112124

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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