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RecruitingNCT06742268Updated Jan 9, 2025

Extension Study on Safety and Rebound Effect of SAT-001 for Myopia in Children

An observational study in Myopia, sponsored by S-Alpha Therapeutics, Inc.. Recruiting at 5 sites in Korea, Republic of. Open to participants aged 5 Years to 8 Years. Per ClinicalTrials.gov, last updated 2025-01-09.

Sponsored by S-Alpha Therapeutics, Inc. · Observational

From the registry’s dates

  • Primary completion was expected by Oct 2025, 11 months ago, but the record still lists the study as recruiting.
  • Started Dec 2024; still recruiting 1 year 9 months later.
Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
40
Ages
5 Years to 8 Years
Sex
All
01

Study summary

The objective of this clinical trial is to collect data on the rebound effect and long-term safety of SAT-001, a Software as a Medical Device (SaMD) under development for the inhibition and treatment of myopia progression in pediatric patients.

Read the detailed description

Myopia treatments to date have included both pharmacological and non-pharmacological approaches, with some studies showing effects in reducing myopia progression. However, previous research has also identified a rebound effect, where myopia progresses rapidly after treatment cessation during follow-up. Since myopia progression in children often continues for more than two years, this rebound effect could be a critical factor in determining treatment strategies for pediatric myopia.

This multi-center, open-label, controlled observational study is an extension of a previous confirmatory trial (SAT-001-KP-002) that evaluated SAT-001, a Software as a Medical Device (SaMD) designed to slow myopia progression in pediatric patients. The current study aims to assess the rebound effect and long-term safety of SAT-001 in participants who completed the previous trial, and to collect additional data on rebound myopia and long-term safety outcomes following the completion of the initial trial. A total of 40 participants, aged 5 to less than 9 years, from both the treatment and control groups of the prior study will be followed for 6 months after completing the original trial. Participants from the previous trial who had less than 70% compliance will be excluded from this study. Both groups will continue wearing spectacles, the conventional treatment for myopia, during the extension phase. The primary endpoint is the change in cycloplegic spherical equivalent refractive error (SER) from baseline to 24 weeks, while secondary endpoints include changes in SER at 12 weeks and changes in axial length at 12 and 24 weeks compared to baseline.

02

Conditions studied

  • Myopia

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Keywords

  • Myopia
  • Rebound effect
  • SaMD
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 40 is below the median of 150 across 173 observational studies indexed under Myopia.

Browse Myopia studies →

Lead sponsor

S-Alpha Therapeutics, Inc. is the lead sponsor of 7 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
5 Years to 8 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study population consists of children aged 5 to 8 years at the time of their participation in the previous confirmatory trial (SAT-001-KP-002), who are continuing in the extension study. Participants will remain in their original groups (study or control group) with no new randomization.

Inclusion criteria

  • Participants who have completed the previous clinical trial (SAT001-KP-002), and their legal guardians who agree to participate in this extension study and are willing to provide the signed informed consent after receiving and comprehending the explanation of the description of this clinical trial (subject under 6 can make a mark for agreement after full information and understanding)

Exclusion criteria

Exclusion Criteria:

  • Participants in the study group of the previous clinical trial (SAT001-KP-002) with a compliance rate of less than 70% (overall compliance throughout the study period).
  • Other reasons for participation in the trial at the discretion of the investigator
05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
40 participants (estimated)
Patient registry
No

Groups and cohorts

  • Arm 1: Spectacles with Cessation of SAT-001 Use

    This group consists of pediatric participants who were previously assigned to receive SAT-001 along with single vision spectacles as part of the SAT-001 confirmatory trial (SAT-001-KP-002). In the extension phase, these participants will continue wearing single vision spectacles, but will no longer receive SAT-001 treatment. The aim is to monitor rebound myopia and long-term safety after the completion of the initial trial, focusing on any changes in refractive error and axial length, as well as any adverse effects associated with the cessation of SAT-001 use.

    Other: Single vision spectacles

  • Arm 2: Continued Spectacles Only

    This group consists of pediatric participants who were assigned to the control group during the SAT-001 confirmatory trial and received only single vision spectacles. In the extension phase, they will continue wearing spectacles to assess rebound myopia and long-term safety, without the addition of SAT-001 treatment.

    Other: Single vision spectacles

Interventions

  • OtherSingle vision spectacles

    Other interventions for myopia treatment, except for glasses, will not be provided.

06

What researchers measure

Primary outcomes

  1. change in spherical equivalent refractive error

    change in spherical equivalent refractive error at 24 weeks from baseline

    Time frame: baseline, 24 weeks

Secondary outcomes

  1. change in spherical equivalent refractive error

    change in spherical equivalent refractive error at 12- and 24-week from baseline

    Time frame: Baseline, 12 weeks, 24 weeks

  2. change in axial length

    change in axial length at 12-week and 24-week from baseline

    Time frame: Baseline, 12 weeks, 24 weeks

07

Study locations

3 of 5 sites recruiting
  • Kangbuk Samsung Hospital
    Seoul, Choose One... 01757, Korea, Republic of
    • Han, MD · Contact
    • Han, MD · Principal investigator
    Recruiting
  • Seoul Asan Medical Center
    Seoul, Choose One... 05505, Korea, Republic of
    • Lee, MD · Contact
    • Lee · Principal investigator
    Not yet recruiting
  • Hallym University Dongtan Sacred heart Hospital
    Hwaseong, Gyeonggi, Korea, Republic of
    • Rhiu, MD · Contact
    • Rhiu, MD · Principal investigator
    Recruiting
  • Chung-Ang University Gwang Myeong Hospital
    Gwangmyeong, 14323, Korea, Republic of
    • Kim, MD · Contact
    • Kim, MD · Principal investigator
    Not yet recruiting
  • Gachon University Gil Medical Center
    Incheon, 42724, Korea, Republic of
    • Baik, MD · Contact
    • Baik, MD · Principal investigator
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 9, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06742268
Lead sponsor
S-Alpha Therapeutics, Inc.
Responsible party
Sponsor
First posted
Dec 19, 2024
Start date
Dec 16, 2024
Primary completion
Oct 30, 2025 (estimated)
Completion
Jul 30, 2026 (estimated)
Last update
Jan 9, 2025

Study contacts

Jihye Lee, MSc
Contact
sophie@salphadtx.com
(+82) 2-3487-3923
Paik, MD
principal investigator · Gachon University Gil Medical Center
Lee, MD
principal investigator · Seoul Asan Medical Center
Han, MD
principal investigator · Kangbuk Samsung Hospital
Kim, MD
principal investigator · HanGil Eye Hospital
Kim, MD
principal investigator · Chung-Ang University Gwang Myeong Hospital
Park, MD
principal investigator · Daegu Fatima Hospital
Rhiu, MD
principal investigator · Hallym University Dongtan Sacred heart Hospital

Oversight

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

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