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A randomized controlled trial: The optimal dose of vitamin D maintenance in elderly women in 6 months follow-up

The optimal dose of vitamin D maintenance in elderly women: A 6 month randomized control trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
TCTR
Registry ID
TCTR20170912002
Enrollment
100
Registered
2017-09-12
Start date
2017-06-02
Completion date
Unknown
Last updated
2026-03-30

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

Conditions

post&#45

Interventions

Vitamin D2 20000 IU per week,Identical placebo
Active Comparator Drug,Placebo Comparator Drug
Vitamin D2,Placebo

Sponsors

Rheumatic Disease Unit, Department of Medicine
Lead Sponsor
Rheumatic Disease Unit&#44
Collaborator
Department of Medicine
Collaborator

Eligibility

Sex/Gender
Female
Age
60 Years to 100 Years

Inclusion criteria

Inclusion criteria: 1. Women age ≥ 60 year&#45;old 2. 25(OH) D levels <30 ng/mL and then treated with vitamin D supplement 60&#44;000 IU/week for at least 12 weeks and achieve 25(OH)D level ≥ 30 ng/mL 3. CrCl ≥ 30 ml/min 4. Normal serum calcium and phosphate

Exclusion criteria

Exclusion criteria: 1. Malabsorption syndrome or granulomatous disease 2. Previous and/or current history of renal stone 3. Recieved other sources of vitamin D supplements

Design outcomes

Primary

MeasureTime frame
25 (OH) vitamin D level 6 months Electrochemiluminescence binding assay—

Secondary

MeasureTime frame
Hand grip strength 6 months Hand grip strength—

Countries

Thailand

Contacts

Public ContactPitchamon Inkong

Phramongkutklao hospital

beaupitchamon@gmail.com0895746699

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Apr 4, 2026