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Does Lowering Homocysteine slow the rate of memory loss in healthy older people?

The Effect of Homocysteine Lowering Vitamins on Cognitive Performance in healthy older people: a Randomised Controlled Trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12605000030673
Enrollment
260
Registered
2005-07-22
Start date
2002-09-04
Completion date
Unknown
Last updated
2020-01-13

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

Conditions

None listed

Interventions

A randomised, double-blind, placebo-controlled trial. Participants >= 65 years of age with total plasma homocysteine concentrations >=13 [micro]mol/L, and normal renal function were randomised to take a single capsule once daily, containing either a placebo (cellulose) or a combination of 1mg L-Mefolinic acid (folate), 0.5 mg cyanocobalamin and 10mg pyridoxol, over 2 years.

Sponsors

University of Otago
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Prevention
Masking
Blinded (masking used)

Eligibility

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

Inclusion criteria

Total plasma homocysteine concentration >= 13 [micro]mol/L; not taking supplementary folic acid or vitamins B-12 or B-6; no prior stroke; not diabetic; no established dementia; not taking folate inhibiting medications (antiepileptics, oral hypoglycaemics, treatment for depression); have normal renal function (creatinine clearance <133 [micro]mol/L in men and < 115 [micro]mol/L in women); availble for at least 2 years.

Exclusion criteria

No exclusion criteria

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026