Hemocoagulation and Lipoperoxidation in Women Using Combined Oral Contraceptives, Correction by Antioxidants
The Changes of Hemocoagulation and Lipoperoxidation in Women Using Combined Oral Contraceptives With Antiandrogenic Activity, Correction by Antioxidants
This date has not been verified as actual or estimated.
Primary Completion
March 2015
Estimated (date passed)
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Study Completion
October 2015
Estimated (date passed)
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Brief Summary
We investigate parameters of hemocoagulation and lipoperoxidation in women using combined oral contraceptives with antiandrogenic activity (containing drospirenone with 20 or 30 mcg ethinylestradiol; or cyproterone acetate); correction of these changes by antioxidants
Registry Overview
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
Recruitment status
unknown
Estimated enrollment
200 participants
Study completion date
October 2015
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Listed locations
1 countries · 1 sites
Trial Relationships
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Related Scientific Literature
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Study Timeline
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
Study Start
December 2013
Date type not reported
This date has not been verified as actual or estimated.
First Submitted
December 26, 2013
Actual (reported)
First Posted
January 6, 2014
Actual (reported)
Primary Completion
March 2015
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
October 2015
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Change from Baseline in Activated recalcification time
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Activated partial thromboplastin time
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Prothrombin time
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in International normalized ratio
Study Arms (7)
Control group
NO INTERVENTION
Healthy women that no use combined oral contraceptives
20 mcg EE/3 mg drospirenone
EXPERIMENTAL
Women that use combined oral contraceptives containing 20 mcg ethinylestradiol/3 mg drospirenone (Yaz)
Drug: 20 mcg ethinylestradiol /3 mg drospirenone
20 mcg EE/3 mg drospirenone and Selmevit
EXPERIMENTAL
Women that use combined oral contraceptives containing 20 mcg ethinylestradiol/3 mg drospirenone (Yaz) and antioxidant complex Selmevit
Drug: 20 mcg ethinylestradiol/3 mg drospirenone and Selmevit
Interventions
20 mcg ethinylestradiol /3 mg drospirenoneDrug
One contraceptive pill in each day of 28 day cycle. Number of Cycles: 12
Also known as: Yaz
20 mcg EE/3 mg drospirenone
20 mcg ethinylestradiol/3 mg drospirenone and SelmevitDrug
One contraceptive pill in each day of 28 day cycle. Number of Cycles: 12. Two pills of Selmevit in each day during 30 days, repeat of the course every 3 months.
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in D-dimer concentration
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Fibrinogen concentration
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Soluble fibrin-monomer complexes concentration
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Platelet aggregation
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Antithrombin III activity
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Reserve plasminogen index
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Erythrocyte Lipoperoxidation products, extractable in heptane and isopropanol
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Malondialdehyde Concentration in Erythrocytes
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Glutathion-S-transferase Activity in Erythrocytes
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Change from Baseline in Superoxide dismutase Activity in Erythrocytes
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Vitamin A and E plasma concentration
Baseline, 1, 3, 6 and 12 cycles of 4 weeks (between days 18 and 21 of each cycle)
Secondary Outcomes (2)
Frequency of adverse effects
12 cycles of 4 weeks
Subjective tolerability of contraceptives
12 cycles of 4 weeks
30 mcg EE/3 mg drospirenone
EXPERIMENTAL
Women that use combined oral contraceptives containing 30 mcg ethinylestradiol/3 mg drospirenone (Yasmin)
Drug: 30 mcg ethinylestradiol/3 mg drospirenone
30 mcg EE/3 mg drospirenone and Selmevit
EXPERIMENTAL
Women that use combined oral contraceptives containing 30 mcg ethinylestradiol/3 mg drospirenone (Yasmin) and antioxidant complex Selmevit
Drug: 30 mcg ethinylestradiol/3 mg drospirenone and Selmevit
35 mcg EE/2mg cyproterone
EXPERIMENTAL
Women that use combined oral contraceptives containing 35 mcg ethinylestradiol/2 mg cyproterone
Drug: 35 mcg ethinylestradiol/2 mg cyproterone
35 mcg EE/2 mg cyproterone and Selmevit
EXPERIMENTAL
Women that use combined oral contraceptives containing 20 mcg ethinylestradiol/2 mg cyproterone and Selmevit
Drug: 35 mcg ethinylestradiol/2 mg cyproterone and Selmevit
Also known as: Yaz, Selmevit
20 mcg EE/3 mg drospirenone and Selmevit
30 mcg ethinylestradiol/3 mg drospirenoneDrug
One contraceptive pill in each of 21 days, than 7 days break. Number of Cycles: 12
Also known as: Yasmin
30 mcg EE/3 mg drospirenone
30 mcg ethinylestradiol/3 mg drospirenone and SelmevitDrug
One contraceptive pill in each of 21 days, than 7 days break. Number of Cycles: 12 Two pills of Selmevit in each day during 30 days, repeat of the course every 3 months.
Also known as: Yasmin, Selmevit
30 mcg EE/3 mg drospirenone and Selmevit
35 mcg ethinylestradiol/2 mg cyproteroneDrug
1 contraceptive pill in each day of 28 day cycle. Number of Cycles: 12
Also known as: Diane-35, Chloe
35 mcg EE/2mg cyproterone
35 mcg ethinylestradiol/2 mg cyproterone and SelmevitDrug
One contraceptive pill in each day of 28 day cycle. Number of Cycles: 12. Two pills of Selmevit in each day during 30 days, repeat of the course every 3 months.
Also known as: Diane-35, Chloe, Selmevit
35 mcg EE/2 mg cyproterone and Selmevit
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Informed voluntary consent for examination
You may not qualify if:
Age younger than 18 and older than 35 years
Refusal or failure to comply with the study protocol
Drug or alcohol dependence
Psychiatric diseases
Severe somatic and allergic diseases
Pregnancy
Malignancies
Taking drugs that affect haemostasis, including hormonal contraceptives during 6 months before study beginning
Cases of thrombosis among first-line relatives in family history
Contraindications to the COC use under Eligibility Criteria of hormonal contraception (WHO, 2012)
Contact the study team to confirm eligibility.
Urogenital Diseases
Genital Diseases
Gonadal Disorders
Endocrine System Diseases
46, XX Disorders of Sex Development
Disorders of Sex Development
Urogenital Abnormalities
Adrenogenital Syndrome
Male Urogenital Diseases
Congenital Abnormalities
Congenital, Hereditary, and Neonatal Diseases and Abnormalities
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
October 2015
Estimated (date passed)
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
November 21, 2014
Record last verified: 2014-01
Source record
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Source: ClinicalTrials.gov.
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