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Study identifier: NCT02138669 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Intacs Prescription Inserts for Keratoconus Patients

Condition: Keratoconus  ·  Sponsor: University of Texas Southwestern Medical Center

PhaseNA
Planned participants25
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

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.

This description comes directly from the study's public registry record.

Talk to the study team

Peter Chen, PhD  ·  214-648-3837  ·  Peter.Chen@UTSouthwestern.edu

Asha Varghese, MS  ·  214-648-3087  ·  Asha.Varghese@UTSouthwestern.edu

Always discuss trial participation with your own doctor first.

Locations (1)

UTSW Medical Center at DallasDallas, Texas, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT02138669