RECRUITING

Intacs Prescription Inserts for Keratoconus Patients

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

The US food and Drug Administration (FDA) originally approved INTACS prescription inserts in April 1999 for the correction of low levels of nearsightedness (-1.00 to -3.00 diopters). Additional clinical data have shown that INTACS are safe for the treatment of keratoconus, in July 2004, FDA approved INTACS inserts for the treatment of keratoconus as a Humanitarian Use Device (FDA approval letter attached). The statute and the implementing regulation of FDA (21 CFR 814.124 (aj) require IRB review and approval before a HUD is used.INTACS prescription inserts are composed of two clear segments, each having an arc length of 150°, they are manufactured form a biomedical material called polymethylmethacrylate (PMMA) and are available in three thicknesses. Two INTACS inserts ranging from 0.250mm to 0.350mm may be implanted depending on the orientation of the cone and the amount of myopia and astigmatism to be reduced.

Official Title

INTACS® Prescription Inserts Used to Treat Patients With Keratoconus as a Humanitarian Use Device

Quick Facts

Study Start:2011-01
Study Completion:2025-07-31
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:RECRUITING

Study ID

NCT02138669

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.

Ages Eligible for Study:18 Years
Sexes Eligible for Study:ALL
Accepts Healthy Volunteers:No
Standard Ages:ADULT, OLDER_ADULT
Inclusion CriteriaExclusion Criteria
  1. Age 18 years or older
  2. Willing and able to provide informed consent
  3. Able to understand and follow study procedures
  4. Stable medical condition
  1. Pregnancy or breastfeeding
  2. Severe psychiatric disorders
  3. Active substance abuse
  4. Unstable medical conditions
  5. Inability to comply with study requirements

Contacts and Locations

Study Contact

Peter Chen, PhD
CONTACT
214-648-3837
Peter.Chen@UTSouthwestern.edu
Asha Varghese, MS
CONTACT
214-648-3087
Asha.Varghese@UTSouthwestern.edu

Principal Investigator

Steven Verity, MD
PRINCIPAL_INVESTIGATOR
UTSW Medical Center at Dallas

Study Locations (Sites)

UTSW Medical Center at Dallas
Dallas, Texas, 75390
United States

Collaborators and Investigators

Sponsor: University of Texas Southwestern Medical Center

  • Steven Verity, MD, PRINCIPAL_INVESTIGATOR, UTSW Medical Center at Dallas

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 Registration Dates

Study Start Date2011-01
Study Completion Date2025-07-31

Study Record Updates

Study Start Date2011-01
Study Completion Date2025-07-31

Terms related to this study

Keywords Provided by Researchers

  • Cornea
  • Keratoconus
  • Steep cornea

Additional Relevant MeSH Terms

  • Keratoconus