Pharmacokinetics of a Novel Vaginal Delivery System for Testosterone and Dehydroepiandrosterone (DHEA)
Prospective, Randomized, Open-label and Comparative Study to Determine the Pharmacokinetic Parameters of Vaginal Rings That Contain DHEA, Testosterone, or the Combination of Both Androgens, in Comparison With Oral Administration of DHEA and Transdermal Administration of Testosterone, in Postmenopausal Women
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 1
Contacts and Locations
Study Locations
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-
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Santiago, Chile
- Instituto de Investigación Materno Infantil (IDIMI) - Maternidad Hospital San Borja (HCSBA)
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Women between 40 to 60 years old.
- Postmenopausal with spontaneous amenorrhea of 1 year or more, regardless of follicle stimulating hormone (FSH) levels; or amenorrhea of 6 to 12 months, in which the postmenopausal state will be confirmed with a FSH level of 0.040 international units per milliliter or higher.
- Body Mass Index between 19 and 30.
- Intact uterus.
- Not having received hormone therapy in the month prior to selection.
- Adequate veins to conduct serial blood samplings.
- Recent Pap smear (not more than 12 months), with a result negative for malignant neoplastic cells, and that contains sufficient endocervical cells for analysis. If the Pap smear was performed more than 12 months ago or cannot be verified through clinical documentation, it must be repeated during the selection process.
- Normal mammogram, BI.RADS I or II (American College of Radiology), within the last year. If the mammogram was performed more than 12 months ago or cannot be verified through clinical documentation, it must be repeated during the selection process.
- That provide written informed consent.
Exclusion Criteria:
- Use at randomization of phenytoin, barbiturates, primidone, carbamazepine, rifampin, griseofulvin, ketoconazole, lipid-lowering agents.
- History of diseases such as coronary heart disease, breast cancer, uterine cancer, and/or chronic hepatic disease.
- Unconscious volunteers, severely ill, or with mental disability.
- Allergy and hypersensitivity to DHEA and/or testosterone.
- Untreated or uncontrolled hypertension, with systolic pressure above 140 mm Hg or diastolic pressure above 90 mm Hg.
- Current participation in other research at the moment of the screening visit, or having concluded their participation in a previous research in less than 30 days since their last visit.
- Pregnant or lactating women; pregnancy must be confirmed with a urine positive human chorionic gonadotropin (HCG) test during screening.
- History of vein thrombosis (deep vein thrombosis, pulmonary embolism).
- History of arterial thrombosis (myocardial infarction) or prodromic conditions (e.g. transient ischemic attack, angina pectoris).
- History of stroke.
- History of migraine with focal neurological manifestations.
- History of hepatic tumor (benign or malignant).
- History of clinical atherosclerosis in first grade relatives (parents, siblings, sons [men less than 55 years old and women less than 65 years old]).
- Smoking (5 or more cigarettes a day).
- Diabetes mellitus that will be ruled out at screening if fasting glucose is less than 100 mg/dL or between 100 and 125 mg/dL, with Oral Glucose Tolerance Test that rules out diabetes. Diabetes will be confirmed with blood glucose equal to or above 200 mg/dL or 2 fasting glucose tests equal to or above 126 mg/dL.
- High density lipopolysaccharide (HDL)-cholesterol below 35 mg/dL.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
EXPERIMENTAL: Group 1: AVD
Vaginal ring with 2.2 grams dehydroepiandrosterone (DHEA), wearing time 72 hours
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Vaginal ring with 2.2 grams DHEA.
|
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EXPERIMENTAL: Group 2: AVT
Vaginal ring with 35 mg testosterone, wearing time 72 hours.
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Vaginal ring with 35 mg testosterone.
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EXPERIMENTAL: Group 3: AVD+T
Vaginal ring with 1.5 grams DHEA and 25 mg testosterone, wearing time 72 hours.
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Vaginal ring with DHEA 1.5 grams/Testosterone 25 mg.
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ACTIVE_COMPARATOR: Group 4: DHEA capsule
Capsules with 25 mg DHEA, oral administration every 8 hours for a 72-hour period.
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Capsule containing 25 mg DHEA
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ACTIVE_COMPARATOR: Group 5: Testosterone transdermal gel
Testosterone transdermal gel with dosing valve (pump): administration of 3 pump actuations (equivalent to 5 mg of testosterone each) per day (total daily dose 15 mg), on 3 consecutive days (72 hours).
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Gel containing 1% testosterone.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Testosterone: Area under the serum concentration time curve (AUC0-72)
Time Frame: Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
Serum testosterone was measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
The AUC0-72 was calculated.
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Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
|
DHEA: Area under the serum concentration time curve (AUC0-72)
Time Frame: Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
Serum DHEA were measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
The AUC0-72 was calculated.
|
Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
|
Testosterone: Average serum concentration 0-24 hours
Time Frame: Pre-dose and from 30 minutes after administration of the assigned treatment to 24 hours
|
Serum testosterone was measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
The average serum concentration achieved in the first 24 hours after administration of the assigned treatment was calculated.
|
Pre-dose and from 30 minutes after administration of the assigned treatment to 24 hours
|
|
DHEA: Average serum concentration 0-24 hours
Time Frame: Pre-dose and from 30 minutes after administration of the assigned treatment to 24 hours
|
Serum DHEA was measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
The average serum concentration achieved in the first 24 hours after administration of the assigned treatment was calculated.
|
Pre-dose and from 30 minutes after administration of the assigned treatment to 24 hours
|
|
Testosterone: Maximum serum concentration (Cmax)
Time Frame: Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
Serum testosterone was measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
Cmax was calculated.
|
Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
|
DHEA: Maximum serum concentration (Cmax)
Time Frame: Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
Serum DHEA was measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
Cmax was calculated.
|
Pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
|
Testosterone: Time to achieve maximum serum concentration (tmax)
Time Frame: pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
Serum testosterone was measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
Tmax was calculated.
|
pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
|
DHEA: Time to achieve maximum serum concentration (tmax)
Time Frame: pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
Serum DHEA was measured pre-dose and at 30 minutes, at 1 hour, 2, 4, 6, 8, 24, 48, and 72 hours after vaginal ring insertion, the transdermal application of the testosterone gel, or after taking DHEA capsules.
Tmax was calculated.
|
pre-dose and from 30 minutes after administration of the assigned treatment to 72 hours
|
Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Study Start
Primary Completion (ACTUAL)
Primary Completion
Study Completion (ACTUAL)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (ACTUAL)
First Posted
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Physiological Effects of Drugs
- Antineoplastic Agents
- Immunologic Factors
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Antineoplastic Agents, Hormonal
- Adjuvants, Immunologic
- Androgens
- Anabolic Agents
- Dehydroepiandrosterone
- Testosterone
- Methyltestosterone
- Testosterone undecanoate
- Testosterone enanthate
- Testosterone 17 beta-cypionate
Other Study ID Numbers
Other Study ID Numbers
- PKAVD+T
- EC1503 (OTHER: Sponsor code)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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