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Time course changes of O-17 water in the eyes

Water dynamics in the eye using O-17-labeled water in healthy adults - O17MRI

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs031210082
Enrollment
10
Registered
2021-05-12
Start date
2021-06-24
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glaucoma abnormal water circulation, intraocular pressure, aqueous humor

Interventions

Intraocular administration of 0-17 labeled water

Sponsors

Obata Takayuki
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Healthy subjects aged between 20 to 39 years old at informed consent 2. Subjects with corrected eyesight of 0.7 or more 3. Subjects who are judged by the investigator or research coordinator to be able to apply based on their own will and understand the contents of the explanatory document 4. Subjects who provide written informed consent

Exclusion criteria

Exclusion criteria: 1. A history or complications of serious eye and brain diseases. 2. A history of eye surgery or those who have a history of eye trauma that is considered inappropriate for participation in this clinical study. 3. Serious or progressive complications, or those who have a history of these complications and are judged by the investigator to be ineligible for this study. 4. Controindication for MRI such as metabolic implant, tatoo in the upper body. 5. Claustrophobia or phobia of the dark. 6. Pregnant or may be pregnant. 7. A history of severe hypersensitivity to the drug. 8. Receiving the drug within 14 days before the MRI examination date. 9. Drug addiction or alcohol addiction. 10. Smoker. 11. Judged by the principal investigator or the investigator to be ineligible for this study.

Design outcomes

Primary

MeasureTime frame
Intraocular dynamics of O-17-labeled water

Secondary

MeasureTime frame
Safety by intraocular instillation of O-17-labeled water

Contacts

Public ContactTakayuki Obata

National Institutes for Quantum Science and Technology

obata.takayuki@qst.go.jp+81-43-206-3230

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026