ClinicalTrials.gg
Active, not recruitingNCT04594512Updated Jul 29, 2026

Fresh Corneal Lenticule Implantation and Autologous Serum - Case Report

An interventional study of Fresh corneal lenticule and autologous serum in advanced keratoconus using ReLex Smile surgery in Keratoconus, Keratoconus of Right Eye and Keratoconus, Unstable, Right Eye, sponsored by Eye Hospital Pristina Kosovo. Active, not recruiting at 1 site in Kosovo. Open to female participants aged 19 Years to 20 Years. Per ClinicalTrials.gov, last updated 2026-07-29.

Sponsored by Eye Hospital Pristina Kosovo · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 1 year 4 months after the study started (first participant enrolled May 2019, registered Oct 2020).
Phase
Not applicable
Study type
Interventional
Enrollment
1
Allocation
Not applicable
Ages
19 Years to 20 Years
Sex
Female
01

Study summary

The aim of our study is to investigate the feasibility and the effect of fresh lenticule implantation as allogenic graft that will be taken from myopic patients to implant in patients with keratoconus disease using VisuMax Femtosescond laser- Smile module surgery with primary objective to increase central corneal thickness and secondary to improve visual acuity and reduces K-values and to show the autologous serum drop improve the recovery of patients with mild dry eye in keratoconus disease.

Read the detailed description

A 19-year-old female patient with keratoconus and chronic hydrops cornea referred to the cornea department of our clinic with thin cornea and hydrops in chronic stage and minimal dry eye symptoms. Minimum corneal pachymetry in the right eye was 378 µm as measured by optical coherence tomography(AS-OCT-Zeiss). Atlas corneal topography showed steep K-values 82.60 ax.37 and flat K 75.15 D ax 127 with -7.45 corneal astigmatism. Her best corrected visual acuity was 0.0.5 in right eye and 1.0 in the left eye. Slit lamp examination showed intense punctate epitheliopathy (Figure 1), tear film break-up time (TBUT) was measured as 7-8 sec and Schirmer test was 10 mm in right eye, and the other eye examinations were determined normally.

02

Conditions studied

  • Keratoconus
  • Keratoconus of Right Eye
  • Keratoconus, Unstable, Right Eye

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03

In context

Keratoconus

313 studies on the registry are indexed under Keratoconus; 56 are open to participants now.

This study's enrollment of 1 is below the median of 40 across 205 interventional studies indexed under Keratoconus.

Browse Keratoconus studies →

Lead sponsor

Eye Hospital Pristina Kosovo is the lead sponsor of 13 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years to 20 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Be at least 18 years of age, male or female, of any race
  • Willingness and ability to follow all instructions and comply with schedule for follow-up visits
  • For females: Must not be pregnant

Exclusion criteria

Exclusion Criteria:

  • , sensitivity or known allergy to the use of the test article(s) or their components
  • If female, pregnant
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
1 participant (actual)

Study arms

  • Other
    LENTICULE IMPLANTATION

    The present study may suggest that this procedure safely, reliably, and effectively increases corneal thickness and improves visual acuity with no adverse effects. It may even provide new avenues in the treatment of corneal ectasia. Stem cells and live keratocytes are well organized based on cornea transparency and in anterior segment OCT.

    Other: Fresh corneal lenticule and autologous serum in advanced keratoconus using ReLex Smile surgery

Interventions

  • OtherFresh corneal lenticule and autologous serum in advanced keratoconus using ReLex Smile surgery

    A 19-year-old female patient with keratoconus and chronic hydrops cornea referred to the cornea department of our clinic with thin cornea and hydrops in chronic stage and minimal dry eye symptoms. Minimum corneal pachymetry in the right eye was 378 µm as measured by optical coherence tomography(AS-OCT-Zeiss). Atlas corneal topography showed steep K-values 82.60 ax.37 and flat K 75.15 D ax 127 with -7.45 corneal astigmatism. Her best corrected visual acuity was 0.0.5 in right eye and 1.0 in the left eye. Slit lamp examination showed intense punctate epitheliopathy (Figure 1), tear film break-up time (TBUT) was measured as 7-8 sec and Schirmer test was 10 mm in right eye, and the other eye examinations were determined normally

    Also known as: ReLex Smile

06

What researchers measure

Primary outcomes

  1. Treatment of advanced keratoconus disease

    Change of corneal central thickness using fresh lenticule with stromal stem cells, live keratocites and autologous serum

    Time frame: 12 months

07

Study locations

1 site
08

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from May 2019 to primary completion in May 2020, 12 months.

Of 59 non-industry interventional studies with no phase under Keratoconus, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 12 and three quarters within 54. This study's 12 months is below that.

Counting every sponsor, half of 68 studies reached it within 34 months; a quarter within 12 and three quarters within 59.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 1, 2020
First posted
Oct 20, 2020
StartActual
May 8, 2019
Primary completionActual
May 8, 2020
CompletionEst.
May 8, 2027
Last update
Jul 29, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 29, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04594512
Lead sponsor
Eye Hospital Pristina Kosovo
Responsible party
Dr. Faruk Semiz (Head of Ophthalmology Department, Eye Hospital Pristina Kosovo) — Principal investigator
First posted
Oct 20, 2020
Start date
May 8, 2019
Primary completion
May 8, 2020
Completion
May 8, 2027 (estimated)
Last update
Jul 29, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

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