CClinicalTrials.gg
Status unknownNCT04226560Updated Feb 24, 2021

Performance and Safety of Silicone Hydrogel Soft Contact Lenses

An interventional study of 41% Silicone Hydrogel Soft Contact Lenses(SHSCL) and ACUVUE® VITA™ (senofilcon C) Brand (Soft) Contact Lens in Myopia, sponsored by ApexLens Co., Ltd.. Status unknown at 1 site in Taiwan. Open to participants aged 20 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2021-02-24.

Sponsored by ApexLens Co., Ltd. · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Feb 2021), so the status shown — last known as Recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
65
Allocation
Randomized
Ages
20 Years to 45 Years
Sex
All
01

Study summary

To demonstrate substantial equivalence of the new Silicone Hydrogel Soft Contact Lenses(SHSCL) to the commercially available ACUVUE® VITA™ contact lens

Read the detailed description

This study is a prospective, subject-masked, bilateral, randomized, parallel group dispensing study comparing the SHSCL test lens against the 1-Month ACUVUE® VITA™ (1-MAV) control lenses. Each subject will be randomized to wear either the test or of the control with similar/comparable lens parameters optimized for vision.

Both test and control lens will be used in their daily wear, monthly replacement modality for thirteen (13) weeks. It is anticipated that this study will involve up to 6 scheduled visits.

02

Conditions studied

  • Myopia

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Keywords

  • Nearsightedness
  • Eye wear
  • Myopia control
  • Contact lens
03

In context

Myopia

984 studies on the registry are indexed under Myopia; 210 are open to participants now.

This study's planned enrollment of 65 is below the median of 80 across 783 interventional studies indexed under Myopia.

Browse Myopia studies →

Lead sponsor

This is the only study on the registry with ApexLens Co., Ltd. as lead sponsor.

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

04

Who can participate

Ages eligible
20 Years to 45 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

A person is eligible for inclusion in the study if he/she:

  1. Healthy adult males or females age ≥20-45 years of age;
  2. Be a currently adapted soft contact lens wearer (i.e. be wearing lenses at least 1 month prior to enrolment) and the last contact lenses worn more than a week ago;
  3. Have a contact lens powers between -2.00D and -6.00D (both inclusive) in both eyes;
  4. Astigmatism of 1.00D or less in both eyes;
  5. Be able to wear the lens powers available for this study;
  6. Be correctable to a visual acuity of 0.8 decimal (+0.10 logMAR) or better in each eye;
  7. The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol;
  8. The subject must read and sign the Informed Consent form.

Exclusion criteria

Exclusion Criteria:

A person will be excluded from the study if he/she:

  1. Previously unsuccessful with contact lens wear, worn rigid gas permeable contact lenses within past 12 months;
  2. Women who are pregnant, lactating or planning a pregnancy at the time of enrolment (by verbal confirmation at the screening visit);
  3. Any ocular or systemic allergies or diseases that may contraindicate contact lens wear;
  4. Any ocular medications use within the last one month;
  5. Any systemic disease, autoimmune disease, or use of medication, which may interfere with contact lens wear;
  6. Any infectious disease (e.g., hepatitis, tuberculosis) or a contagious immunosuppressive disease (e.g., HIV), by self-report;
  7. Any current or previous orthokeratology treatment, or planned for orthokeratology treatment during the study;
  8. Any previous history of ocular and/or refractive surgery (e.g., radial keratotomy, PRK, LASIK, etc.), or planned for ocular and/or refractive surgery during the study
  9. History of herpetic keratitis;
  10. History of binocular vision abnormality or strabismus, by self-report;
  11. Allergic reactions to test lens, control lens or the contact lens solution used in this study;
  12. A clinical finding or history of entropion, ectropion, chalazia, recurrent styes, glaucoma, pathologically dry eye, history of recurrent corneal erosions, aphakia, or moderate or above corneal distortion, by self-report;
  13. Employee of investigational clinic (e.g., Investigator, Coordinator, Technician);
  14. Participation in any contact lens or lens care product clinical trial within 30 days prior to study enrollment;
  15. Any slit lamp findings which would contraindicate contact lens wear;
  16. Any history of a contact lens-related corneal inflammatory event within the past 12 months that may contraindicate contact lens wear; or
  17. Clinically significant (grade 3 or 4) anterior segment abnormalities or any infection of the eye, lids, or associated structures;
  18. Subjects are considered ineligible for the study as judged by the investigator.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
65 participants (estimated)

Study arms

  • Experimental
    41% Silicone hydrogel Soft contact lenses (SHSCL)

    Healthy adult males or females age ≥20-45 years of age

    Device: 41% Silicone Hydrogel Soft Contact Lenses(SHSCL) · Other: Contact Lens Care Product · Other: Contact Lens Case

  • Active comparator
    ACUVUE® VITA™

    Healthy adult males or females age ≥20-45 years of age

    Device: ACUVUE® VITA™ (senofilcon C) Brand (Soft) Contact Lens · Other: Contact Lens Care Product · Other: Contact Lens Case

Interventions

  • Device41% Silicone Hydrogel Soft Contact Lenses(SHSCL)

    Silicone Hydrogel

  • DeviceACUVUE® VITA™ (senofilcon C) Brand (Soft) Contact Lens

    Senofilcon C (USFDA Device License #K160212)

  • OtherContact Lens Care Product

    Cefatrizine (propylene Glycol), Sodium Citrate (sodium Citrate Tribasic), Sodium Chloride, Sodium Borate (sodium Biboratesodium Tetraborate, Polyquaternium -1, Hydrochloric Acid, Sodium Hydroxide, Water Purified ( Eq to Aqueous Purified Or Purified Water ), Tetronic 1304, Myristamidopropyl Dimethylamine, Nonanoyl Ethylenediaminetriacetic Acid

    Also known as: Opti-Free Replenish Multi-purpose Disinfecting Solution

  • OtherContact Lens Case

    "Alcon" Soft (hydrophilic) Contact Lens Case (Non-Sterile)

    Also known as: "Alcon" Soft (hydrophilic) Contact Lens Case (Non-Sterile)

06

What researchers measure

Primary outcomes

  1. Best-corrected contact lens visual acuity

    The primary efficacy endpoint in this evaluation is the percentage of subjects with best-corrected contact lens visual acuity of 0.8 decimal (+0.10 logMAR) and 1.0 decimal (0.00 logMAR) or better. The Snellen chart will be used for visual acuity testing.

    Time frame: 13 weeks

  2. Permanent loss of visual acuity

    The primary safety endpoint in this evaluation is the percentage of subjects with permanent loss of two or more lines of visual acuity.

    Time frame: 13 weeks

  3. Serious adverse reactions

    The primary safety endpoint in this evaluation is the rate of serious adverse reactions related to visual acuity loss as well as accompanying slit-lamp findings and other associated observations.

    Time frame: 13 weeks

Secondary outcomes

  1. Lens comfort

    The secondary efficacy endpoint is the assessment of lens comfort over time with the lens for the recommended wearing time. This will be measured using Study Diary. Subject will be given a Study Diary to be completed at home, to reflect their lens wear experience at the time of rating. Subject will be given careful explanation of how and when to complete them. Comfort after insertion (i.e. after lens settling), after 4 hours, and just before lens removal (0-10 scale)(10 = cannot be felt, 0 = painful)

    Time frame: 13 weeks

  2. Symptoms of dryness

    The secondary efficacy endpoint is the assessment of dryness symptoms with the lens for the recommended wearing time. This will be measured using Study Diary. Subject will be given a Study Diary to be completed at home, to reflect their lens wear experience at the time of rating. Subject will be given careful explanation of how and when to complete them. Dryness after insertion (i.e. after lens settling), after 4 hours, and just before lens removal (0-10 scale)(10 = cannot be felt, 0 = painful)

    Time frame: 13 weeks

  3. Slit lamp findings

    The secondary efficacy endpoint is the assessment of the rate of any Slit Lamp Findings \> Grade 2. The subject will be instructed to take off the study lenses before the slit-lamp biomicroscopy assessment. Slit-lamp biomicroscopy will be assessed according to the approved study biomicroscopy CRF. ISO 11980:2012 Annex B will be used to grade the Slit-lamp findings.

    Time frame: 13 weeks

  4. Subject reported ocular complaints

    Subjects will be asked to assess ocular complaints by using Study Diary.

    Time frame: 13 weeks

07

Study locations

1 of 1 sites recruiting
  • ApexLens Co., Ltd.
    Hsinchu, 300, Taiwan
    • Rex Tsou · Contact · rex.tsou@apexlens.com · 886-3-5752910
    • Yih-Shiou Hwang, M.D.,Ph.D. · Principal investigator
    • Hsin-Wei Huang, M.D. · Principal investigator
    Recruiting
08

References and documents

Publications

  • Dumbleton KA, Woods CA, Jones LW, Fonn D. The relationship between compliance with lens replacement and contact lens-related problems in silicone hydrogel wearers. Cont Lens Anterior Eye. 2011 Oct;34(5):216-22. doi: 10.1016/j.clae.2011.03.001. Epub 2011 Apr 13. PubMed 21493121 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 24, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04226560
Lead sponsor
ApexLens Co., Ltd.
Collaborators
Chang Gung Memorial Hospital, Taipei Medical University WanFang Hospital
Responsible party
Sponsor
First posted
Jan 13, 2020
Start date
Apr 20, 2020
Primary completion
May 30, 2021 (estimated)
Completion
May 30, 2021 (estimated)
Last update
Feb 24, 2021

Study contacts

Rex Tsou
Contact
rex.tsou@apexlens.com
886-3-5752910 ext. 206
Yih-Shiou Hwang, M.D.,Ph.D.
principal investigator · Chang Gung Memorial Hospital
Hsin-Wei Huang, M.D.
principal investigator · Taipei Medical University - Municipal Wan Fang Hospital

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 status unknown, as verified in Feb 2021. You cannot join it, but the record below documents what was studied.

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