Investigation of Bioequivalence of Ethinylestradiol (EE) and Drospirenone (DRSP) in Two Different Tablet Formulations: Yasmin and Yasmin + Levomefolate Calcium (Metafolin) & L-5-MTHF in Two Different Tablet Formulations: Levomefolate Calcium (Metafolin) and Yasmin + Levomefolate Calcium (Metafolin)

Study Overview
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Brief Summary
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The purpose of this study is to examine and compare the uptake of Yasmin (oral contraceptive containing drospirenone and ethinylestradiol) with or without levomefolate calcium (Metafolin, a registered vitamin supplement) in the body and to examine and compare the uptake of levomefolate calcium with or without Yasmin in the body, in healthy volunteers not using hormonal contraception.

Official Title
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Open-label, Randomized, Three-fold Crossover Study to Investigate the Bioequivalence of Two Different Tablet Formulations Containing 0.03 mg Ethinylestradiol (EE) and 3 mg Drospirenone (DRSP) Without [SH T470FA] and With [SH T04532A] 0.451 mg Metafolin®, and to Investigate the Bioequivalence of Two Different Tablet Formulations Containing 0.451 mg Metafolin® Without [SH T04532C] and With 0.03 mg EE/ 3 mg DRSP [SH T04532A] in 42 Healthy Young Women

Conditions
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Contraception

Intervention / Treatment
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* Drug: EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131)
* Drug: EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca)
* Drug: L-5-MTHF Ca 0.451 mg (Metafolin)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy female volunteer Age: 18 - 38 years inclusive Body mass index (BMI)1: ≥ 19 and < 28 kg/m² Regular cyclic menstrual periods at screening OR when using combined oral contraceptives during the recruitment period reporting of natural cyclic menstrual periods prior to their use Willingness to use non-hormonal methods of contraception during the complete trial OR previous tubal ligation Exclusion Criteria: incompletely cured pre-existing diseases for which it can be assumed that the absorption, distribution, metabolism, excretion and effect of the study drugs will not be normal known or suspected sex-steroid influenced malignancies endometrial hyperplasia; genital bleeding of unknown origin; uterus myomatosus known or suspected tumors of the liver and pituitary presence or history of severe hepatic disease as long as liver function values have not returned to normal severe renal insufficiency or acute renal failure thrombophlebitis, venous / arterial thromboembolic diseases; presence or history of prodromi of a thrombosis other conditions that increase susceptibility to thromboembolic diseases known neuropsychiatric diseases, especially known or suspected epilepsy, and/ or deficient status of folate or vitamin B12 use of any other medication within 2 cycles before first study drug administration which could affect the study aim use of potassium sparing drugs; use of folic acid containing supplements or medicines or use of any medication within 2 cycles before first study drug administration known to interfere with folate metabolism inadequate folate and/or Vitamin B12 status , clinically relevant deviations in red cell folate concentrations

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 38 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131)<br>single oral administration of 1 film-coated SHT470FA tablet (Yasmin with ethinylestradiol (EE) as free steroid), containing 0.030 mg EE + 3 mg drospirenone (DRSP) | Drug: EE 0.03 mg/DRSP 3 mg (Yasmin, BAY86-5131)<br>* single oral administration of 1 coated tablet SH T470FA (Yasmin, film-coated tablets with ethinylestradiol (EE) as free steroid), containing 0.030 mg EE + 3 mg drospirenone (DRSP)<br>|
| Experimental: EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca)<br>single oral administration of 1 film-coated SHT04532A tablet (with ethinylestradiol (EE) as clathtrate), containing 0.030 mg EE + 3 mg drospirenone (DRSP) + 0.451 mg Metafolin (L-5-methyltetrahydrofolate calcium [MTHF-Ca]) | Drug: EE 0.03mg/DRSP 3mg/L-5-MTHF Ca 0.451mg (EE30/DRSP/L-5-MTHF Ca)<br>* single oral administration of 1 coated tablet SH T04532A (film-coated tablet with ethinylestradiol (EE) as clathtrate), containing 0.030 mg EE + 3 mg drospirenone (DRSP) + 0.451 mg Metafolin<br>|
| Active Comparator: L-5-MTHF Ca 0.451 mg (Metafolin)<br>single oral administration of 1 coated tablet SHT04532C, containing 0.451 mg Metafolin (L-5-methyltetrahydrofolate calcium [MTHF-Ca]) | Drug: L-5-MTHF Ca 0.451 mg (Metafolin)<br>* single oral administration of 1 coated tablet SH T04532C, containing 0.451 mg Metafolin<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Mean Maximum Concentration (Cmax) of EE Incl. Bioequivalence (BE) Evaluation | Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample. | up to 96 hours after administration | 
| Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of EE Incl. Bioequivalence (BE) Evaluation | The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample | up to 96 hours after administration | 
| Mean Maximum Concentration (Cmax) of DRSP Incl. Bioequivalence (BE) Evaluation | Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample. | up to 168 hours after administration | 
| Mean Area Under the Concentration-time Curve (AUC) of DRSP Incl. Bioequivalence (BE) Evaluation | The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample | up to 168 hours after administration | 
| Mean Maximum Concentration (Cmax) of L-5-methyl-THF (Baseline Corrected) Incl. Bioequivalence (BE) Evaluation | The baseline corrected Cmax is a measure of the highest measured drug concentration provided solely by the treatment after subtracting endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples, measuring the concentrations of L-5-methyl-THF in each sample and by subtracting the pre-treatment concentration. | up to 12 hours after administration | 
| Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of L-5-methyl-THF (Baseline Corrected) Incl. Bioequivalence (BE) Evaluation | The baseline corrected AUC is a measure of the systemic drug exposure provided by the treatment excluding the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples, measuring the concentrations of L-5-methyl-THF in each sample and by subtracting the pre-treatment concentration. | up to 12 hours after administration | 
| Mean Maximum Concentration (Cmax) of L-5-methyl-THF (Baseline Uncorrected) Incl. Bioequivalence (BE) Evaluation | The baseline uncorrected Cmax is a measure of the highest measured drug concentration including the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples and measuring the concentrations of L-5-methyl-THF in each sample. | up to 12 hours after administration | 
| Mean Area Under the Concentration-time Curve From Administration to the Last Measurement [AUC(0-tlast)] of L-5-methyl-THF (Baseline Uncorrected) Incl. Bioequivalence (BE) Evaluation | The baseline uncorrected AUC is a measure of the systemic drug exposure provided by the treatment including the endogenous L-5-methyl-THF level. It is obtained by collecting a series of blood samples and measuring the concentrations of L-5-methyl-THF in each sample. | up to 12 hours after administration | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time to Reach Maximum Concentration (Tmax) of EE | Tmax refers to the time after dosing when a drug attains its highest measurable concentration (Cmax). It is obtained by collecting a series of blood samples at various times after dosing, and measuring them for drug content | up to 96 hours after administration | 
| Mean Area Under the Concentration-time Curve From Administration up to 72h AUC(0-72h) of DRSP | The AUC is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample | up to 72 hours after administration | 
| Time to Reach Maximum Concentration (Tmax) of DRSP | Tmax refers to the time after dosing when a drug attains its highest measurable concentration (Cmax). It is obtained by collecting a series of blood samples at various times after dosing, and measuring them for drug content | up to 168 hours after administration | 
| Time to Reach Maximum Concentration (Tmax) of L-5-methyl-THF | Tmax refers to the time after dosing when a drug attains its highest measurable concentration (Cmax). It is obtained by collecting a series of blood samples at various times after dosing, and measuring them for drug content | up to 12 hours after administration |