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The efficacy of vitamin B12 in reducing ocular signs and symptoms of dry eye disease

The efficacy of vitamin B12 in ocular signs and symptoms of dry eye disease in participants 18 and over

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12626000410358
Enrollment
60
Registered
2026-04-02
Start date
2026-04-30
Completion date
2027-09-30
Last updated
2026-04-14

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

Conditions

None listed

Brief summary

It is important while trying to understand the effect of vitamins on the ocular surface and their association with dry eye disease, to try first to characterize the most effective chemical forms of vitamins, utilizing the proper methodologies and supplements with randomized controlled clinical studies. This PhD aims to explore the role of vitamin B12 oral consumption on corneal health and dry eye disease. These findings may in the future guide the development of novel treatment strategies for dry eye disease management.

Interventions

Oral vitamin B12 supplement: -Mecobalamin 1000 microgram, once daily. -3 months administration. -Compliance will be monitored by counting the dispensed and returned capsules and bottles of capsules, as well as by questioning the participants at each visit. For remote compliance control participants will be asked to use the redcap platform.

Sponsors

University of New South Wales Sydney
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used) (Subject, Caregiver, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

• Be able to read and comprehend English and give informed consent as demonstrated by signing a record of informed consent. • No previous vitamin B12 commercial supplements in the last three months • Currently have been diagnosed with dry eye disease. • Be at least 18 years old • Be willing to comply with the consuming supplement product and clinical trial visit schedule.

Exclusion criteria

• Currently taking vitamin B12 commercial supplements. Participants will be advised not to change their diet for the duration of the study. • Eye surgery within 12 weeks immediately prior to enrolment for this trial • Previous corneal refractive surgery • Active corneal infection or any active ocular disease such as iritis, corneal oedema or corneal dystrophies, including anterior membrane dystrophy. • Any current ocular injury • Be currently enrolled in another clinical trial or have participated in a clinical trial within the previous 2 weeks. • Pregnant or lactating

Outcome results

None listed

Source: ANZCTR · Data processed: Apr 17, 2026