Sexual Absorption of Vaginal Progesterone

Sponsor
Wake Forest University Health Sciences (Other)
Overall Status
Completed
CT.gov ID
NCT01959464
Collaborator
Carolinas Medical Center (Other)
20
1
2
22
0.9

Study Details

Study Description

Brief Summary

The purpose of this study is to determine if sexual intercourse lowers serum progesterone in women using vaginal progesterone gel (Crinone®), and increases serum progesterone in their male sexual partners. We hypothesize, based on previous estrogen studies done by our group, that intercourse will interfere with absorption of vaginal progesterone.

Condition or Disease Intervention/Treatment Phase
  • Drug: Crinone vaginal progesterone gel
  • Drug: Placebo vaginal gel
Phase 4

Detailed Description

The effects of intercourse on the absorption of vaginal progesterone for the female user and her sexual partner have not been studied. However, a previous study performed by our group found that intercourse lowered the absorption of vaginal estrogen cream in women, and men absorbed a small but statistically significant amount of estradiol during intercourse. Vaginal progesterone gel may be used by women for several clinical indications, and if intercourse alters the absorption and distribution of vaginal progesterone, clinical outcomes may be compromised. If intercourse lowers absorption, the efficacy of the treatment could be reduced. If intercourse enhances absorption, side effects may be increased. Also, if the male sexual partner absorbs vaginal progesterone, undesirable side effects may occur.

Study Design

Study Type:
Interventional
Actual Enrollment :
20 participants
Allocation:
Randomized
Intervention Model:
Crossover Assignment
Intervention Model Description:
Initial assignment randomized, then crossed over to the other treatmentInitial assignment randomized, then crossed over to the other treatment
Masking:
Triple (Participant, Care Provider, Investigator)
Primary Purpose:
Diagnostic
Official Title:
Sexual Absorption of Vaginal Progesterone
Study Start Date :
Nov 1, 2008
Actual Primary Completion Date :
Sep 1, 2010
Actual Study Completion Date :
Sep 1, 2010

Arms and Interventions

Arm Intervention/Treatment
Experimental: Crinone vaginal progesterone gel

Crinone is a bioadhesive vaginal gel containing micronized progesterone in an emulsion system containing a water swellable but insoluble polymer, polycarbophil. Crinone 8% is formulated to provide a long-acting vaginal retention, and is prescribed daily. Each applicator delivers 1.125 grams of Crinone gel containing 90 mg of progesterone. The reported time to maximum progesterone concentration is 6.8 +/- 3.3 hours with use of a single dose of Crinone 8%. Absorption half-life is approximately 25-50 hours and an elimination half-life of 5-20 minutes. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream.

Drug: Crinone vaginal progesterone gel
Crinone vaginal progesterone gel is inserted in the female vaginal using the pre-filled applicator.

Placebo Comparator: Placebo vaginal gel

The couple will be given a prefilled applicator containing either Crinone gel (progesterone) or placebo vaginal gel, data collection sheets and laboratory requisitions. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream.

Drug: Placebo vaginal gel
Placebo vaginal gel is inserted in the female vagina using the pre-filled applicator.

Outcome Measures

Primary Outcome Measures

  1. Female Change in Progesterone [3 weeks]

    The primary outcome variables will be: the change in serum progesterone levels increase after coitus in the female partner using vaginal progesterone gel compared to placebo

Secondary Outcome Measures

  1. Male Change in Progesterone [3 weeks]

    The secondary outcome variable will be the change in serum progesterone levels after coitus in the male partner comparing vaginal progesterone gel and placebo.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 40 Years
Sexes Eligible for Study:
Female
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • Sexually active 18-40 year old heterosexual couple

  • Subject willing to take Mircette birth control pills for at least one cycle (one pack)

  • Willing to have intercourse at the defined times (at least weekly within a 3 week interval, and draw blood within 10 hours of intercourse)

  • IRB signed informed consent

Exclusion Criteria:
  • Undiagnosed vaginal bleeding

  • Contraindication to oral contraceptives

  • Liver dysfunction or disease

  • Known sensitivity to Crinone

  • Known or suspected malignancy of the breast or genital organs

  • History of or active thrombophlebitis or thromboembolic disorders

  • Use of condoms during intercourse

  • Male erectile or ejaculatory dysfunction

Contacts and Locations

Locations

Site City State Country Postal Code
1 Carolinas Medical Center Charlotte North Carolina United States 28204

Sponsors and Collaborators

  • Wake Forest University Health Sciences
  • Carolinas Medical Center

Investigators

  • Principal Investigator: Bradley S Hurst, MD, Carolinas Medical Center

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Wake Forest University Health Sciences
ClinicalTrials.gov Identifier:
NCT01959464
Other Study ID Numbers:
  • SAVP2013
First Posted:
Oct 10, 2013
Last Update Posted:
Apr 22, 2022
Last Verified:
Jul 1, 2021
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Keywords provided by Wake Forest University Health Sciences
Additional relevant MeSH terms:

Study Results

Participant Flow

Recruitment Details
Pre-assignment Detail Women were enrolled into the study to receive the intervention; male partners also had blood samples taken
Arm/Group Title Placebo Vaginal Gel Then Crinone Crinone Vaginal Progesterone Gel Then Placebo
Arm/Group Description The couple will be given a prefilled applicator containing placebo vaginal gel, data collection sheets and laboratory requisitions. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Then they will be crossed over to Crinone vaginal gel. Crinone is a bioadhesive vaginal gel containing micronized progesterone in an emulsion system containing a water swellable but insoluble polymer, polycarbophil. Crinone 8% is formulated to provide a long-acting vaginal retention, and is prescribed daily. Each applicator delivers 1.125 grams of Crinone gel containing 90 mg of progesterone. The reported time to maximum progesterone concentration is 6.8 +/- 3.3 hours with use of a single dose of Crinone 8%. Absorption half-life is approximately 25-50 hours and an elimination half-life of 5-20 minutes. On the evening of day 3, the female will insert the applicator into the vagina, administer the Crinone gel, and have intercourse within 1 hour of insertion of the cream. Then subject will cross over to placebo
Period Title: Overall Study
STARTED 10 10
COMPLETED 9 10
NOT COMPLETED 1 0

Baseline Characteristics

Arm/Group Title Crinone Vaginal Progesterone Gel Then Placebo Placebo Vaginal Gel Then Crinone Total
Arm/Group Description Crinone is a bioadhesive vaginal gel containing micronized progesterone in an emulsion system containing a water swellable but insoluble polymer, polycarbophil. Crinone 8% is formulated to provide a long-acting vaginal retention, and is prescribed daily. Each applicator delivers 1.125 grams of Crinone gel containing 90 mg of progesterone. The reported time to maximum progesterone concentration is 6.8 +/- 3.3 hours with use of a single dose of Crinone 8%. Absorption half-life is approximately 25-50 hours and an elimination half-life of 5-20 minutes. On the evening of day 3, the female will insert the applicator into the vagina, administer the Crinone gel, and have intercourse within 1 hour of insertion of the cream. Then she will cross over to placebo. The couple will be given a prefilled applicator containing placebo vaginal gel, data collection sheets and laboratory requisitions. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Then she will cross over to Crinone. Total of all reporting groups
Overall Participants 10 10 20
Age (Count of Participants)
<=18 years
0
0%
0
0%
0
0%
Between 18 and 65 years
10
100%
10
100%
20
100%
>=65 years
0
0%
0
0%
0
0%
Sex: Female, Male (Count of Participants)
Female
10
100%
10
100%
20
100%
Male
0
0%
0
0%
0
0%
Ethnicity (NIH/OMB) (Count of Participants)
Hispanic or Latino
1
10%
1
10%
2
10%
Not Hispanic or Latino
9
90%
8
80%
17
85%
Unknown or Not Reported
0
0%
1
10%
1
5%
Region of Enrollment (participants) [Number]
United States
10
100%
10
100%
20
100%

Outcome Measures

1. Primary Outcome
Title Female Change in Progesterone
Description The primary outcome variables will be: the change in serum progesterone levels increase after coitus in the female partner using vaginal progesterone gel compared to placebo
Time Frame 3 weeks

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Placebo Vaginal Gel Crinone Vaginal Progesterone Gel
Arm/Group Description The couple will be given a prefilled applicator containing either Crinone gel (progesterone) or placebo vaginal gel, data collection sheets and laboratory requisitions. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Placebo vaginal gel: Placebo vaginal gel is inserted in the female vagina using the pre-filled applicator. Crinone is a bioadhesive vaginal gel containing micronized progesterone in an emulsion system containing a water swellable but insoluble polymer, polycarbophil. Crinone 8% is formulated to provide a long-acting vaginal retention, and is prescribed daily. Each applicator delivers 1.125 grams of Crinone gel containing 90 mg of progesterone. The reported time to maximum progesterone concentration is 6.8 +/- 3.3 hours with use of a single dose of Crinone 8%. Absorption half-life is approximately 25-50 hours and an elimination half-life of 5-20 minutes. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Crinone vaginal progesterone gel: Crinone vaginal progesterone gel is inserted in the female vaginal using the pre-filled applicator.
Measure Participants 20 20
Mean (Full Range) [ng/ml]
0.8
7.0
2. Secondary Outcome
Title Male Change in Progesterone
Description The secondary outcome variable will be the change in serum progesterone levels after coitus in the male partner comparing vaginal progesterone gel and placebo.
Time Frame 3 weeks

Outcome Measure Data

Analysis Population Description
[Not Specified]
Arm/Group Title Placebo Vaginal Gel Crinone Vaginal Progesterone Gel
Arm/Group Description The couple will be given a prefilled applicator containing either Crinone gel (progesterone) or placebo vaginal gel, data collection sheets and laboratory requisitions. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Placebo vaginal gel: Placebo vaginal gel is inserted in the female vagina using the pre-filled applicator. Crinone is a bioadhesive vaginal gel containing micronized progesterone in an emulsion system containing a water swellable but insoluble polymer, polycarbophil. Crinone 8% is formulated to provide a long-acting vaginal retention, and is prescribed daily. Each applicator delivers 1.125 grams of Crinone gel containing 90 mg of progesterone. The reported time to maximum progesterone concentration is 6.8 +/- 3.3 hours with use of a single dose of Crinone 8%. Absorption half-life is approximately 25-50 hours and an elimination half-life of 5-20 minutes. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Crinone vaginal progesterone gel: Crinone vaginal progesterone gel is inserted in the female vaginal using the pre-filled applicator.
Measure Participants 20 20
Mean (Full Range) [ng/ml]
0.54
0.85

Adverse Events

Time Frame 1 year
Adverse Event Reporting Description
Arm/Group Title Placebo Vaginal Gel Crinone Vaginal Progesterone Gel
Arm/Group Description The couple will be given a prefilled applicator containing either Crinone gel (progesterone) or placebo vaginal gel, data collection sheets and laboratory requisitions. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Placebo vaginal gel: Placebo vaginal gel is inserted in the female vagina using the pre-filled applicator. Crinone is a bioadhesive vaginal gel containing micronized progesterone in an emulsion system containing a water swellable but insoluble polymer, polycarbophil. Crinone 8% is formulated to provide a long-acting vaginal retention, and is prescribed daily. Each applicator delivers 1.125 grams of Crinone gel containing 90 mg of progesterone. The reported time to maximum progesterone concentration is 6.8 +/- 3.3 hours with use of a single dose of Crinone 8%. Absorption half-life is approximately 25-50 hours and an elimination half-life of 5-20 minutes. On the evening of day 3, the female will insert the applicator into the vagina, administer the gel, and have intercourse within 1 hour of insertion of the cream. Crinone vaginal progesterone gel: Crinone vaginal progesterone gel is inserted in the female vaginal using the pre-filled applicator.
All Cause Mortality
Placebo Vaginal Gel Crinone Vaginal Progesterone Gel
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total / (NaN) / (NaN)
Serious Adverse Events
Placebo Vaginal Gel Crinone Vaginal Progesterone Gel
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/20 (0%) 0/20 (0%)
Other (Not Including Serious) Adverse Events
Placebo Vaginal Gel Crinone Vaginal Progesterone Gel
Affected / at Risk (%) # Events Affected / at Risk (%) # Events
Total 0/20 (0%) 0/20 (0%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.

Results Point of Contact

Name/Title Bradley Hurst, M.D., Director of Assisted Reproduction
Organization Carolinas Healthcare System
Phone 704-355-3149
Email bhurst@carolinas.org
Responsible Party:
Wake Forest University Health Sciences
ClinicalTrials.gov Identifier:
NCT01959464
Other Study ID Numbers:
  • SAVP2013
First Posted:
Oct 10, 2013
Last Update Posted:
Apr 22, 2022
Last Verified:
Jul 1, 2021