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Author (year) Duration (Timepoints for Toxicity Assessment) |
% Vitamin D Deficient Population Exclusion Criteria Ethnicity (country) |
Sample Size |
Intervention Compliance |
Followup Serum 25(OH)D (nmol/L) Assay |
Safety Outcomes |
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Kenny (2003)113 |
NR |
IG1: 33 CG: 32 |
IG1: I,000 IU/d vit D3 + 500 mg Ca/d CG: Placebo + 500 mg Ca/d |
baseline mean (SD) IG1: 65 (17.5) CG: 60 (17.5) 6 mo followup: significant increase in IG1 but not CG (graph) |
Hypercalcemia: 0 hypercalciuria: 0 No AE identified |
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11 weeks |
men ≥ age 65 years |
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92% completers |
Urinary Ca (mg)/Cr (g) increased similarly in both groups. IG1: baseline 96 (65) and 6 mo 134 (89) CG: baseline 95 (80) and 6 mo 129 (101) |
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(baseline, 3 and 6 mo) |
excluded those with systemic disease or unresolved endocrine disorder known to affect muscle metabolism; use of androgens, estrogens, or dehydroepiandosterone (previous 12 months), use of cholecalciferol (previous 4 wks). |
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87.3 (13.8) |
WDAE: 0 |
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CPBA |
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NR (U.S.) |
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Krieg (1999)207 |
NR |
IG1: 124 CG: 124 |
IG1: 440 IU D3 + 1,000 mg Ca carbonate/d (Ca in 2 doses) CG: No treatment |
mean (SEM): baseline IG1: 29.8 (3) CG: 29.3 (3) 1 y IG1: 74.5 (2.3) CG: 20.8 (2.8) 2 y IG1: 66.3 (4) CG: 14.3 (2.5) |
Mean serum Ca (SEM): IG1: 2.31 (0.02) CG: 2.23 (0.01) |
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2 years |
Elderly institutionalized women |
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completers: IG: 50 (40.3%) CG: 53 (42.7%) |
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NR |
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Hypercalcemia: IG1: 1 (withdrew) CG: 0 |
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NR (Switzerland) |
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compliance NR |
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GI: IG1: 6 subjects (5%) with upper GI side effects withdrew CG: 0 withdrew due to upper GI symptoms |
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CPBA |
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Mortality: IG1: 21/124 (16.9%) CG: 26/126 (20.6%) |