Effect of 9-cis beta-carotene on retinal function of fundus albipunctatus

Effect of 9-cis beta-carotene on retinal function of fundus albipunctatus - Effect of 9-cis beta-carotene on fundus albipunctatus

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000017676

Enrollment

Registered

2015-05-25

Start date

2015-05-07

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

Fundus albipunctatus

Interventions

Oral administration of beta-carotene (Dunaliella)

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Patients with funds albipunctatus, who were diagnosed by fundus photograph, electroretinogram, and genetic analysis (RDH5). 2) Patients with funds albipunctatus (age, 20 years or elder), who agreed to participate in this study.

Exclusion criteria

Exclusion criteria: 1) Patients who have any other eye diseases. 2) Patients who had received any vitrectomy surgery. 3) Patients who used any steroid drugs within 3 months. 4) Patients who have allergies to beta-carotene.

Design outcomes

Primary

Measure	Time frame
Improvement of the amplitude of electroretinogram	—

Secondary

Measure	Time frame
Improvement of the visual acuity and visual field	—

Countries

Japan

Contacts

Public ContactMineo Kondo

Mie University School of Medicine Ophthalmology

mineo@clin.medic.mie-u.ac.jp059-231-5027

Outcome results

None listed

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