Active Not RecruitingNCT03613116
High-dose Vitamin D Supplements in Older Adults
PHASE2 · 180 planned enrolment
- Countries listed
- 1
- Registry update
- April 3, 2026
Registry Intervention View
vitamin D3
Trial registrations containing the exact intervention label vitamin D3.
Exact registry label · Not reported
8 linked registrations
No aliases or equivalent products have been inferred.
Topics connected by trial metadata
1 linked registrations report posted results
This is a registry availability fact, not a safety result, comparison, or conclusion.
Understand the safety boundary →Registered trials
UnknownNCT01782352
Age-related Macular Degeneration (AMD) in the Vitamin D and Omega-3 Trial (VITAL)
Phase not reported · 25,871 planned enrolment
- Countries listed
- 1
- Registry update
- August 8, 2023
CompletedNCT02445066
A Pilot Study to Examine the Effects of Vitamin D Supplementation on Mitochondrial Bioenergetics in Older Adults
EARLY_PHASE1 · 15 planned enrolment
- Countries listed
- 1
- Registry update
- August 15, 2018
CompletedNCT01745263
DO-HEALTH / Vitamin D3 - Omega3 - Home Exercise - Healthy Ageing and Longevity Trial
PHASE3 · 2,157 planned enrolment
- Countries listed
- 5
- Registry update
- August 9, 2018
CompletedNCT01398202
Dietary Supplementation With 25-hydroxyvitamin D3 in Older Adults
Phase not reported · 56 planned enrolment
- Countries listed
- 1
- Registry update
- December 2, 2015
UnknownNCT02222649
Evaluation of the High Dose Vitamin D3 Supplementation Effect and Influence of Polymorphism VDR Gene on Oxidative Stress and Inflammatory Process in Elderly
PHASE2 · 40 planned enrolment
- Countries listed
- 1
- Registry update
- March 6, 2015
CompletedNCT00986596
A Pilot Study of the Impact of Vitamin D3 on Muscle Performance in Elderly Women
Phase not reported · 24 planned enrolment
- Countries listed
- 1
- Registry update
- January 10, 2012
CompletedNCT00877422
Vitamin D Supplementation Prevents Elderly Pneumonia
Phase not reported · 100 planned enrolment
- Countries listed
- 1
- Registry update
- April 8, 2009