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CataractNCT05065749

Clinical Results of Asqelio Trifocal Diffractive Intraocular Lens

An observational study of Cataract, run by AST Products, Inc. at 2 sites in Spain.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The study aims to evaluate the clinical outcomes six months after implantation of the trifocal diffractive intraocular lens Asqelio Trifocal IOL TFLIO130C in healthy subjects submitted to non-traumatic cataract surgery. Read more about this study

Who is it for?
Ages 50 years and older
Conditions the study is for
Cataract
How many people
30 participants
Where
2 sitesSpain
Study dates
7 Mar 2022to Sep 2023
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients 50 years of age or older submitted to cataract surgery and implanted with the Asqelio Trifocal IOL TFLIO130C according to regular clinical practice

Who may be able to join

  • Patients submitted to cataract surgery and implanted with Asqelio Trifocal IOL TFLIO130C
  • Patients signing a consent form
  • Patients seeking spectacle-independence following surgery
  • IOL power between +5.00 and +34.00 D
  • Transparent intraocular media, except for the cataract prior to surgery, in both eyes
  • Postoperatory potential visual acuity of 20/25 or better.

Who cannot join

  • Preoperatory corneal astigmatism greater than 0.75D
  • Patients not providing informed consent
  • Previous corneal surgery or trauma
  • Irregular cornea (i.e. keratoconus)
  • Choroidal hemorrhage
  • Microophthalmos
Show all 22Show fewer
  • Severe corneal dystrophy
  • Uncontrolled or medically controlled glaucoma
  • Clinically significant macular changes
  • Severe concomitant ocular disease
  • Not age-related cataract
  • Severe optic nerve atrophy
  • Diabetic retinopathy
  • Ambyopia
  • Extremely shallow anterior chamber
  • Severe chronic uveitis
  • Pregnant or lactating
  • Rubella
  • Mature/Dense cataract sifficulting preoperative fundus assessment
  • Previous retinal detachment
  • Concurrent participation in other investigation using drugs or clinical devices
  • Expecting ocular surgery within the study period

Trial locations and contacts

2 sites in 1 country.

Spain2 sites
  • OftalVist Alicante

    Alicante, 03015

  • OftalVist Jerez de la Frontera

    Jerez de la Frontera, Cádiz, 11408

Other trials in Spain

About this study

The study aims to evaluate the clinical outcomes six months after implantation of the trifocal diffractive intraocular lens Asqelio Trifocal IOL TFLIO130C in healthy subjects submitted to non-traumatic cataract surgery.

This clinical performance will be assessed in terms of refractive error, visual performance at different distances, incidence of adverse events and complications following implantation, and patient satisfaction.

Conditions
Cataract
Keywords
cataract surgery, intraocular lens, multifocal refractive correction
Medical subject headings
Cataract

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adverse events

    Percentage of subjects with adverse events (Ocular and Not Ocular, Severe and Not Severe), including secondary surgical procedures

    Measured: Six months after implantation

  2. Refraction

    Manifest refraction both monocular and binocularly using subjective methods

    Measured: Six months after implantation

Secondary outcomes (8)
  1. Uncorrected visual acuity for distance (4m)

    Monocular visual acuity for distance (4m), without any additional correction, using ETDRS vision chart

    Measured: Six months after implantation

  2. Best-corrected visual acuity for distance (4m)

    Monocular visual acuity for distance (4m), with the best correction for distance, using ETDRS vision chart

    Measured: Six months after implantation

  3. Uncorrected visual acuity for intermediate

    Monocular visual acuity for intermediate distance (60cm), without any additional correction, using ETDRS vision chart

    Measured: Six months after implantation

  4. Best-corrected visual acuity for intermediate

    Monocular visual acuity for intermediate distance (60cm), with the best correction for distance, using ETDRS vision chart

    Measured: Six months after implantation

  5. Uncorrected visual acuity for near

    Monocular visual acuity for near distance (40cm), without any additional correction, using ETDRS vision chart

    Measured: Six months after implantation

  6. Best-corrected visual acuity for near

    Monocular visual acuity for near distance (40cm), with the best correction for distance, using ETDRS vision chart

    Measured: Six months after implantation

  7. Contrast sensitivity function (CSF)

    CSF with best correction, with and without induced glare, using the Clinical Trial Suite

    Measured: Six months after implantation

  8. Defocus curve

    Defocus curve of visual performance varying the stimulus vergence from -4.0 D to +1.0 D in 0.5 D steps with the best correction for distance

    Measured: Six months after implantation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Oct 2021
  2. Study start7 Mar 2022
  3. Primary completionJun 2023 (estimated)
  4. Study completionSep 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05065749
Sponsor's protocol ID
ASQT012021
Status last verified
Feb 2023
First submitted
23 Sep 2021
Last updated
15 Feb 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Tana-Rivero P, Tana-Sanz P, Tana-Sanz S, Montes-Mico R, Cervino A. Recognition vs resolution charts for defocus curve determination in trifocal intraocular lenses. J Cataract Refract Surg. 2024 Sep 1;50(9):942-946. doi: 10.1097/j.jcrs.0000000000001491.

    PubMed 38780434

Questions about this trial

What is this clinical trial studying?

An observational study of Cataract, run by AST Products, Inc. at 2 sites in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 22 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 15 Feb 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Adverse events (time frame: Six months after implantation). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05065749, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Feb 2023.

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