Clinical trial of the effect of combined vitamin D and evening primrose oil supplementation on metabolic profiles and oxidative stress in women with polycystic ovary syndrome
Objective: The aim of the current study is to evaluate the effects of combined vitamin D and evening primrose oil supplementation on metabolic profiles and oxidative stress in women with polycystic ovary syndrome (PCOS). Study design: Parallel double-blind (both patients and researchers) randomized controlled clinical trial. Inclusion and exclusion criteria: In the current study, women aged 18-40 years diagnosed with PCOS will be included. Individuals with neoplastic, cardiovascular disorders, malabsorptive disorders, current or previous (within the last 6 months) use of hormonal, anti-diabetic medications and anti-obesity medications will be excluded in the study. Population and sample size: 60 patients with PCOS among women of eligible and referred to Kosar Clinic affiliated to Arak University of Medical Sciences, Arak, Iran in the study will be selected. Intervention: Patients will be assigned to receive either combined vitamin D and evening primrose oil supplements (intervention group: n=30) or placebo (control group: n=30). Fasting blood samples will be taken at baseline and after 12 weeks of intervention to measure metabolic profiles and biomarkers of oxidative stress. Start and end date of intervention: 12 weeks (August 23, 2015-November 21, 2015). Outcomes: Metabolic profiles and biomarkers of oxidative stress will be measured at study baseline and after 12 weeks of intervention.
General information
Acronym
IRCT registration information
IRCT registration number:IRCT201508025623N48
Registration date:2015-08-06, 1394/05/15
Registration timing:prospective
Last update:
Update count:2
Registration date
2015-08-06, 1394/05/15
Registrant information
Name
Zatollah Asemi
Name of organization / entity
Kashan University of Medical Sciences
Country
Iran (Islamic Republic of)
Phone
+98 36 1534 3570
Email address
asemi_z@kaums.ac.ir
Recruitment status
Recruitment complete
Funding source
Arak University of Medical Sciences
Expected recruitment start date
2015-08-12, 1394/05/21
Expected recruitment end date
2015-08-22, 1394/05/31
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Clinical trial of the effect of combined vitamin D and evening primrose oil supplementation on metabolic profiles and oxidative stress in women with polycystic ovary syndrome
Public title
Effect of supplementation in treatment of women with polycystic ovary syndrome
Purpose
Treatment
Inclusion/Exclusion criteria
Inclusion criteria: Women aged 18-40 years; diagnosed with PCOS.
Exclusion criteria: Individuals with neoplastic; cardiovascular disorders; malabsorptive disorders; current or previous (within the last 6 months) use of hormonal; anti-diabetic medications; anti-obesity medications.
Age
From 18 years old to 40 years old
Gender
Female
Phase
2
Groups that have been masked
No information
Sample size
Target sample size:
60
Randomization (investigator's opinion)
Randomized
Randomization description
Blinding (investigator's opinion)
Double blinded
Blinding description
Placebo
Used
Assignment
Parallel
Other design features
Secondary Ids
empty
Ethics committees
1
Ethics committee
Name of ethics committee
Arak University of Medical Sciences
Street address
Vice chancellor for research, Arak University of Medical Sciences, Sardasht Avenue, Arak
City
Arak
Postal code
Approval date
2015-08-02, 1394/05/11
Ethics committee reference number
IR.ARAKMU.REC.1394.92
Health conditions studied
1
Description of health condition studied
Polycystic ovary syndrome
ICD-10 code
E28.2
ICD-10 code description
Polycystic ovarian syndrome
Primary outcomes
1
Description
Insulin
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Elisa
2
Description
Insulin resistance
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Calculation
Secondary outcomes
1
Description
Triglycerides
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Enzymatic
2
Description
Total cholesterol
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Enzymatic
3
Description
HDL-cholesterol
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Enzymatic
4
Description
Fasting blood sugar
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Enzymatic
5
Description
Total antioxidant
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Spectrophotometry
6
Description
Glutathione
Timepoint
At the beginning of the study and after 12 weeks of intervention
Method of measurement
Spectrophotometry
Intervention groups
1
Description
Intervention group: Combined vitamin D and evening primrose oil pearl, 1000 IU vitamin D plus 1000 mg evening primrose oil, daily, for 12 weeks orally.
Category
Treatment - Drugs
2
Description
Control group: Placebo pearl, daily, for 12 weeks orally.
Category
Treatment - Drugs
Recruitment centers
1
Recruitment center
Name of recruitment center
Kosar Clinic
Full name of responsible person
Khadijeh Nasri
Street address
City
Arak
Sponsors / Funding sources
1
Sponsor
Name of organization / entity
Arak University of Medical Sciences
Full name of responsible person
Mohammad Rafiee
Street address
Vice chancellor for research, Arak University of Medical Sciences, Sardasht Avenue, Arak
City
Arak
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Arak University of Medical Sciences
Proportion provided by this source
100
Public or private sector
empty
Domestic or foreign origin
empty
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
empty
Person responsible for general inquiries
Contact
Person responsible for scientific inquiries
Contact
Name of organization / entity
Kashan University of Medical Sciences
Full name of responsible person
Zatollah Asemi
Position
PhD of Nutrition
Other areas of specialty/work
Street address
Ghotbe Ravandi Boulevard, Kashan
City
Kashan
Postal code
Phone
+98 31 5546 3378
Fax
Email
asemi_z@kaums.ac.ir-asemi_r@yahoo.com
Web page address
Person responsible for updating data
Contact
Name of organization / entity
Kashan University of Medical Sciences
Full name of responsible person
Zatollah Asemi
Position
PhD of Nutrition
Other areas of specialty/work
Street address
Ghotbe Ravandi Boulevard, Kashan
City
Kashan
Postal code
Phone
+98 31 5546 3378
Fax
Email
asemi_z@kaums.ac.ir-asemi_r@yahoo.com
Web page address
Sharing plan
Deidentified Individual Participant Data Set (IPD)