The investigators planned to research the effect of vitamin D supplementation as an adjuvant therapy for patients with hypercholesterolemia.
Vitamin D is primarily generated in the skin, in response to direct absorption of ultraviolet B radiation. Vitamin D can also be obtained through fortified foods and oral supplements. Lipid abnormalities are common in the general population, and are regarded as a modifiable risk factor for cardiovascular disease. Recently low vitamin D status has been shown to be associated with increased risk of developing hyperlipidemia. Statins are normally the first-line therapy for hypercholesterolemia. It is also reported that vitamin D can improve serum lipid levels. However, its effects on hypercholesterolemia patients remain unclear. The investigators planned to determine the efficacy of combination therapy with statins and vitamin D in a cohort of hypercholesterolemia patients. This study may shed light as to whether oral vitamin D supplementation can be an adjunct therapy in hypercholesterolemia patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
56
2000 IU vitamin D3 tablets were taken daily for 6 months
2000 IU placebo tablets were taken daily for 6 months
PLA General Hospital
Beijing, Beijing Municipality, China
RECRUITINGa change in serum total cholesterol level
The primary end point was a change in serum total cholesterol level after 6 months of vitamin D supplementation.
Time frame: after 6 months of vitamin D supplementation
a change in serum triglycerides level
The change in serum triglycerides level was measured after 6 months of vitamin D supplementation.
Time frame: after 6 months of vitamin D supplementation
differences in the incidences of treatment-emergent adverse events
Treatment-emergent adverse events (TEAEs): hypercalcemia, renal insufficiency, constipation
Time frame: after 6 months of vitamin D supplementation
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