NCT05229133

Efficacy and Safety of CLEAR in Myopia and Astigmatism in Chinese Population

A Multicentre, Prospective, Single-arm Clinical Trial to Evaluate Efficacy and Safety of Femtosecond Laser Corneal Lenticule Extraction for Advanced Refractive Correction (CLEAR) in Myopia and Astigmatism in Chinese Population

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 215 (estimated)
• Sponsor: Ziemer Ophthalmic Systems AG · Industry
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

In this multicenter, prospective, interventional, single-arm clinical trial, the aim is to determine safety and efficacy of CLEAR using the FEMTO LDV Z8 in Chinese patients in China. The primary objective is to evaluate the visual outcome after CLEAR using the FEMTO LDV Z8 in myopia and astigmatic myopia at the time point, when stability of manifest refraction spherical equivalent (MRSE) is reached. The corresponding hypothesis is that the percentage of treated eyes with satisfactory Uncorrected Distance Visual Acuity (UCDVA) at the point when stability of MRSE is reached after CLEAR is at least 85% of all treated eyes. This hypothesis has been chosen in line with the recommendations of the "Checklist of Information Usually Submitted in an Investigational Device Exemptions (IDE) Application for Refractive Surgery Lasers" issued by the FDA. The secondary objectives are to evaluate the efficacy and safety with respect to stability, predictability, device defects and adverse events of CLEAR using the FEMTO LDV Z8 in myopia and astigmatic myopia during follow-up.

Conditions

• Myopic Astigmatism

Interventions

Type	Name	Description
DEVICE	CLEAR	FEMTO LDV Z8 Surgical Laser is intended for use in Corneal Lenticule Extraction for Advanced Refractive correction (CLEAR), also called Curved Lamellar Resection (CLR), for the reduction or elimination of myopia from -0.50 D to -10.00 D, with astigmatism of 0 D to -5.00 D or without astigmatism, and MRSE of -0.50 D to -12.50 D in the eye to be treated in patients who are 18 years of age or older with documentation of stable manifest refraction over the past year as demonstrated by a change in sphere and cylinder of ≤ 0.50 D in magnitude.

Timeline

• Start date: 2021-11-29
• Primary completion: 2023-03-01
• Completion: 2023-03-01
• First posted: 2022-02-08
• Last updated: 2022-02-08

Locations

4 sites across 1 country: China