Obesity, unspecified Vitamin D
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Women with obesity (BMI greater than or equal to 30 kg/m²), aged 18 to 60 years, followed at the Obesity Outpatient Clinic. Control group: women with BMI between 18.5 and 24.9 kg/m², aged 18 to 60 years
Exclusion criteria
Exclusion criteria: Age under 18 years; pregnancy or lactation; intestinal malabsorptive disorders; use of medications that interfere with vitamin D metabolism or absorption (corticosteroids, anticonvulsants, isoniazid, antiretrovirals, antifungals, orlistat, cholestyramine); primary/tertiary hyperparathyroidism; hypoparathyroidism; osteoporosis; osteomalacia; rickets; thyrotoxicosis; chronic kidney disease (creatinine clearance under 45 mL/min); history of cancer; chronic liver failure; patient refusal. Use of any commercial vitamin D formulations within the past 2 months
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| A greater and earlier increase in serum 25-hydroxyvitamin D levels is expected in the group receiving calcifediol compared to the groups receiving cholecalciferol or placebo | — |
Secondary
| Measure | Time frame |
|---|---|
| It is expected that a greater decline in serum 25-hydroxyvitamin D levels will be observed 30 days after discontinuation of the capsules in the group that received calcifediol for 90 days, compared to the group that received cholecalciferol for 90 days | — |
Countries
BR
Contacts
Universidade Federal de São Paulo