- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03333564
Effect of Vitamin D3 and Omega-3FA on Estradiol
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The data about effect of vitamin D3 (VD3) and omega-3 fatty acids (omega-3FA) on serum levels of estradiol (E2) are scarce and conflicting and nothing is published in the literature about the effect of the combination of VD3 and omega-3FA on the E2 levels.
This study was conducted to investigate effect of VD3 and omega-3FA alone and with each other on serum E2 levels in premenopausal females with vitamin D deficiency (VDD).
This randomized, placebo-controlled clinical trial was designed to test effects of 50,000 IU VD3 weekly and 300 mg omega-3FA daily for eight weeks, separately and with each other, on the mid-follicular serum levels of E2 and 25-hydroxy vitamin D (25OHD). This study was conducted during winter in 86 healthy premenopausal Jordanian females with VDD with a mean age of (32.8 ± 8.9) years. Fasting serum levels for 25OHD, E2, PTH (parathyroid hormon), calcium, phosphate, ALT (alanine aminotransferase), and urea were assessed at baseline and the end of the trial.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Premenopausal females
- Medical diagnosis of vitamin D deficiency (VD < 30 ng / ml)
Exclusion Criteria:
- Women previously diagnosed with any chronic disease such as kidney diseases were excluded from the study due to the effect of prolonged administration of VD3 on kidney stones formation. Women who are pregnant, breastfeeding or using hormonal contraceptives were also excluded.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: VD3 group
treated with 50,000 IU VD3 / week
|
50,000 IU VD3 / week for 8 weeks
|
|
Experimental: omega3-FA group
1000 mg wild salmon and fish oil complex (contains 300 mg of omega3-FA) once daily
|
300 mg of omega3-FA once daily for 8 weeks
|
|
Experimental: VD3 and Omega-3FA group
50,000 IU VD3 / week and 1000 mg wild salmon and fish oil complex (contains 300 mg of omega-3FA) once daily
|
50,000 IU VD3 / week for 8 weeks and 300 mg of omega-3FA once daily for 8 weeks
|
|
Other: Control group
No intervention was given
|
No intervention was given
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Plasma concentrations of 25-hydroxyvitamin D, estradiol
Time Frame: 8 weeks
|
Concentration
|
8 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Plasma concentrations of PTH, Ca
Time Frame: 8 weeks
|
Concentration
|
8 weeks
|
Collaborators and Investigators
Publications and helpful links
General Publications
- Holick MF, Chen TC. Vitamin D deficiency: a worldwide problem with health consequences. Am J Clin Nutr. 2008 Apr;87(4):1080S-6S. doi: 10.1093/ajcn/87.4.1080S.
- Al-Shaer AH, Abu-Samak MS, Hasoun LZ, Mohammad BA, Basheti IA. Assessing the effect of omega-3 fatty acid combined with vitamin D3 versus vitamin D3 alone on estradiol levels: a randomized, placebo-controlled trial in females with vitamin D deficiency. Clin Pharmacol. 2019 Feb 4;11:25-37. doi: 10.2147/CPAA.S182927. eCollection 2019.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- DRGS-2014-2015-165
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- Study Protocol
- Statistical Analysis Plan (SAP)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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