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Study of the Safety, and Sperm and Gonadotropin Suppression of a Contraceptive Gel in Normal Men

A Multicenter, Randomized, Double-Blind Comparator Trial of the Safety and Sperm and Gonadotropin Suppression Resulting From Combined Use of Nestorone® Gel (0, 8 or 12 mg NES) and Testosterone Gel (10 g) Compared With Testosterone Gel in Normal Men

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00891228
Acronym
CCN007
Enrollment
99
Registered
2009-05-01
Start date
2009-05-31
Completion date
2011-11-30
Last updated
2018-05-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Contraception

Keywords

Contraception, Male Contraception, Suppression of Sperm Production

Brief summary

To determine the number of men who have suppression of sperm production when using a daily regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel applied transdermally.

Interventions

DRUGTestosterone

Two individual packets of T Gel, each with 5 g of gel applied to each arm delivering a total of 100 mg of T on the skin daily.

DRUGNestorone®

Nestorone® Gel will be delivered by a pump configured to deliver a metered volume of Nestorone® Gel containing 8 mg of Nestorone®. For 8 mg Nestorone® dose; Nestorone® Gel will be delivered in 4 mL volume (2 mg Nestorone® mL gel) by pressing two times with 2 mL dispenser head.

Sponsors

Population Council
CollaboratorOTHER
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
CollaboratorNIH
Premier Research
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
MALE
Age
18 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

Men who meet all the following criteria are eligible for enrollment in the trial: 1. Male volunteers in good health as confirmed by physical examination, medical history, and clinical laboratory tests of blood and urine at the time of screening 2. 18 to 50 years of age 3. BMI ≤ 33 calculated as weight in Kg/ (height in cm) 2 4. No history of hormonal therapy use in the last six months prior to the first screening visit 5. Subject will agree to use a recognized effective method of contraception with his partner (i.e. at a minimum, use double-barrier contraception) during the course of the study treatment and recovery phase 6. In the opinion of the investigator, subject is able to comply with the protocol, understand and sign an informed consent and HIPAA form 7. Does not meet any of the

Exclusion criteria

.

Design outcomes

Primary

MeasureTime frame
The Number of Men Who Have Suppression of Sperm Production ≤1Million/mL Million/mL When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel Applied Transdermally.24 Weeks

Secondary

MeasureTime frame
The Number of Men Who Have Suppression of Sperm Production ≤3 Million/mL ≤ 3 Million/mL or Azoospermia When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel.24 Weeks
The Number of Men Who Have Azoospermia24 Weeks
The Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.24 Weeks
The Impact on Sperm Morphology in Men Who Are Not Azoospermic24 weeks

Countries

United States

Participant flow

Participants by arm

ArmCount
Testosterone Gel 10 g and Nestorone® 0 mg Per Day
Two individual packets of Testosterone Gel, each with 5 g of gel applied to each arm delivering a total of 100 mg of Testosterone on the skin. Nestorone® Gel will be delivered by a pump configured to deliver 4 mL of gel containing 0 mg of Nestorone® by pressing two times with the 2 mL dispenser head. Testosterone: Two individual packets of T Gel, each with 5 g of gel applied to each arm delivering a total of 100 mg of T on the skin daily. Nestorone®: Nestorone® Gel will be delivered by a pump configured to deliver 4 mL of gel containing 0 mg of Nestorone® by pressing two times with the 2 mL dispenser head.
32
Testosterone Gel 10 g and Nestorone® 8 mg Per Day
Two individual packets of Testosterone Gel, each with 5 g of gel applied to each arm delivering a total of 100 mg of Testosterone on the skin. Nestorone® Gel will be delivered by a pump configured to deliver a metered volume of Nestorone® Gel containing 8 mg of Nestorone®. For 8 mg Nestorone® dose; Nestorone® Gel will be delivered in 4 mL volume (2 mg NES mL gel) by pressing two times with 2 mL dispenser head. Testosterone: Two individual packets of T Gel, each with 5 g of gel applied to each arm delivering a total of 100 mg of T on the skin daily. Nestorone®: Nestorone® Gel will be delivered by a pump configured to deliver a metered volume of Nestorone® Gel containing 8 mg of Nestorone®. For 8 mg Nestorone® dose; Nestorone® Gel will be delivered in 4 mL volume (2 mg Nestorone® mL gel) by pressing two times with 2 mL dispenser head.
33
Testosterone Gel 10 g Plus Nestorone® Gel 12 mg Per Day
Two individual packets of Testosterone Gel, each with 5 g of gel applied to each arm delivering a total of 100 mg of Testosterone on the skin. Nestorone® Gel will be delivered by a pump configured to deliver a metered volume of Nestorone® Gel containing 12 mg of Nestorone®. For 12 mg Nestorone® dose; Nestorone® Gel will be delivered in 4 mL volume (3 mg Nestorone®/mL gel) by pressing two times with 2 mL dispenser head. Testosterone: Two individual packets of T Gel, each with 5 g of gel applied to each arm delivering a total of 100 mg of T on the skin daily. Nestorone®: Nestorone® Gel will be delivered by a pump configured to deliver a metered volume of Nestorone® Gel containing 12 mg of Nestorone®. For 12 mg Nestorone® dose; Nestorone® Gel will be delivered in 4 mL volume (3 mg Nestorone®/mL gel) by pressing two times with 2 mL dispenser head.
34
Total99

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event023
Overall StudyLost to Follow-up445
Overall StudyPhysician Decision210
Overall StudyPregnancy010
Overall StudyProtocol Violation312
Overall StudyWithdrawal by Subject245

Baseline characteristics

CharacteristicTestosterone Gel 10 g and Nestorone® 0 mg Per DayTestosterone Gel 10 g and Nestorone® 8 mg Per DayTestosterone Gel 10 g Plus Nestorone® Gel 12 mg Per DayTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
32 Participants33 Participants34 Participants99 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants9 Participants10 Participants27 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants24 Participants24 Participants72 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Asian
7 Participants1 Participants1 Participants9 Participants
Race (NIH/OMB)
Black or African American
5 Participants3 Participants7 Participants15 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants1 Participants0 Participants3 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants3 Participants1 Participants6 Participants
Race (NIH/OMB)
White
16 Participants24 Participants25 Participants65 Participants
Region of Enrollment
United States
32 participants33 participants34 participants99 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
32 Participants33 Participants34 Participants99 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
22 / 3223 / 3324 / 34
serious
Total, serious adverse events
0 / 320 / 330 / 34

Outcome results

Primary

The Number of Men Who Have Suppression of Sperm Production ≤1Million/mL Million/mL When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel Applied Transdermally.

Time frame: 24 Weeks

ArmMeasureValue (NUMBER)
Testosterone Gel 10 g and Nestorone® 0 mg Per DayThe Number of Men Who Have Suppression of Sperm Production ≤1Million/mL Million/mL When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel Applied Transdermally.5 participants
Testosterone Gel 10 g and Nestorone® 8 mg Per DayThe Number of Men Who Have Suppression of Sperm Production ≤1Million/mL Million/mL When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel Applied Transdermally.15 participants
Testosterone Gel 10 g Plus Nestorone® Gel 12 mg Per DayThe Number of Men Who Have Suppression of Sperm Production ≤1Million/mL Million/mL When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel Applied Transdermally.13 participants
Secondary

The Impact on Sperm Morphology in Men Who Are Not Azoospermic

Time frame: 24 weeks

Population: Only subjects with the appropriate amount of data for measurement are represented in the outcome measure data table.

ArmMeasureValue (MEAN)Dispersion
Testosterone Gel 10 g and Nestorone® 0 mg Per DayThe Impact on Sperm Morphology in Men Who Are Not Azoospermic12.3 percentage normal morphologyStandard Deviation 3.87
Testosterone Gel 10 g and Nestorone® 8 mg Per DayThe Impact on Sperm Morphology in Men Who Are Not Azoospermic10.8 percentage normal morphologyStandard Deviation 4.83
Testosterone Gel 10 g Plus Nestorone® Gel 12 mg Per DayThe Impact on Sperm Morphology in Men Who Are Not Azoospermic9.1 percentage normal morphologyStandard Deviation 4.64
Secondary

The Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.

Time frame: 24 Weeks

Population: Only subjects with the appropriate amount of data for measurement are represented in the outcome measure data table.

ArmMeasureGroupValue (MEAN)Dispersion
Testosterone Gel 10 g and Nestorone® 0 mg Per DayThe Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.Percent Progressive (week 24)52.8 percentage of spermStandard Deviation 10.7
Testosterone Gel 10 g and Nestorone® 0 mg Per DayThe Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.Percent Non Progressive (week 24)10.4 percentage of spermStandard Deviation 10.72
Testosterone Gel 10 g and Nestorone® 8 mg Per DayThe Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.Percent Progressive (week 24)31.9 percentage of spermStandard Deviation 26.89
Testosterone Gel 10 g and Nestorone® 8 mg Per DayThe Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.Percent Non Progressive (week 24)7.4 percentage of spermStandard Deviation 11.94
Testosterone Gel 10 g Plus Nestorone® Gel 12 mg Per DayThe Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.Percent Non Progressive (week 24)8.3 percentage of spermStandard Deviation 4.82
Testosterone Gel 10 g Plus Nestorone® Gel 12 mg Per DayThe Impact on Sperm Motility in Men Who Are Not Azoospermic Azoospermic.Percent Progressive (week 24)29.6 percentage of spermStandard Deviation 17.15
Secondary

The Number of Men Who Have Azoospermia

Time frame: 24 Weeks

ArmMeasureValue (NUMBER)
Testosterone Gel 10 g and Nestorone® 0 mg Per DayThe Number of Men Who Have Azoospermia5 participants
Testosterone Gel 10 g and Nestorone® 8 mg Per DayThe Number of Men Who Have Azoospermia14 participants
Testosterone Gel 10 g Plus Nestorone® Gel 12 mg Per DayThe Number of Men Who Have Azoospermia11 participants
Secondary

The Number of Men Who Have Suppression of Sperm Production ≤3 Million/mL ≤ 3 Million/mL or Azoospermia When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel.

Time frame: 24 Weeks

ArmMeasureValue (NUMBER)
Testosterone Gel 10 g and Nestorone® 0 mg Per DayThe Number of Men Who Have Suppression of Sperm Production ≤3 Million/mL ≤ 3 Million/mL or Azoospermia When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel.5 participants
Testosterone Gel 10 g and Nestorone® 8 mg Per DayThe Number of Men Who Have Suppression of Sperm Production ≤3 Million/mL ≤ 3 Million/mL or Azoospermia When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel.15 participants
Testosterone Gel 10 g Plus Nestorone® Gel 12 mg Per DayThe Number of Men Who Have Suppression of Sperm Production ≤3 Million/mL ≤ 3 Million/mL or Azoospermia When Using a Daily Regimen of Nestorone® Gel (0, 8 or 12 mg) and Testosterone Gel.14 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026