| NCT ID | NCT05770661 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Shanghai Eye Disease Prevention and Treatment Center |
| Condition | Axial Length |
| Study Type | OBSERVATIONAL |
| Enrollment | 30,000 participants |
| Start Date | 2023-03-10 |
| Primary Completion | 2026-12-31 |
Eligibility & Interventions
Eligibility Fast-Check
Enter your details for a quick preliminary check. This does not replace medical advice.
What to Expect as a Participant
This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.
This trial targets 30,000 participants in total. It began in 2023-03-10 with a primary completion date of 2026-12-31.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
The primary objective of this multi-center, observational study is to establish the reference ranges of axial length in Chinese children and adolescents. 30,000 children aged 3-18 years were examined with cycloplegia to collect their ocular parameters and were all followed up for three years with annual visits.
Eligibility Criteria
Inclusion Criteria: * Aged 3 to 18 years * Have been lived in the research areas for at least one year, and will not move to other places in the following two years * Parents or guardians sign an informed consent form, and children over 6 years old need oral consent to participate Exclusion Criteria: * Mental diseases, unable to cooperate to complete the eye assessment * Ophthalmic diseases, inability to cooperate to complete the inspection
Contact & Investigator
Frequently Asked Questions
Who can join the NCT05770661 clinical trial?
This trial is open to participants of all sexes, aged 3 Years or older, up to 18 Years, studying Axial Length. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT05770661 currently recruiting?
Yes, NCT05770661 is actively recruiting participants. Contact the research team at drxuxun@sjtu.edu.cn for enrollment information.
Where is the NCT05770661 trial being conducted?
This trial is being conducted at Shanghai, China, Shanghai, China.
Who is sponsoring the NCT05770661 clinical trial?
NCT05770661 is sponsored by Shanghai Eye Disease Prevention and Treatment Center. The trial plans to enroll 30,000 participants.