Skip to content

Safety and Efficacy Trial of Testosterone Undecanoate

Phase III, Open-label Study of the Safety and Efficacy of Oral Testosterone Undecanoate (TU)in Hypogonadal Men

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01765179
Enrollment
144
Registered
2013-01-10
Start date
2013-01-31
Completion date
2013-07-31
Last updated
2017-12-12

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

Conditions

Male Hypogonadism

Keywords

testosterone, male hypogonadism, low testosterone

Brief summary

The purpose of the study is to determine if oral testosterone undecanoate is effective and safe in the treatment of low testosterone in men.

Interventions

Initial dose 200 mg T, BID; dose titration Days 42 and/or 84 based on serum T levels obtained 3-5 hours post AM dose on Days 30 and 72. Dosages increased or decreased in 50 mg increments.

Sponsors

inVentiv Health Clinical
CollaboratorOTHER
Clarus Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Serum testosterone of less than or equal to 300 ng/dL (the mean of two samples collected 1 hour apart in the morning between 6:00 and 10:00 AM)

Exclusion criteria

* Significant intercurrent disease of any type, in particular liver, kidney, uncontrolled or poorly controlled heart disease including hypertension, CHF or CAD, or psychiatric illness including depression. * Recent history of stroke, including transient ischemic attack (TIA) or acute coronary event * Untreated, severe obstructive sleep apnea * Hematocrit \<35% or \>48% * Serum transaminases \>2 times upper limit of normal, serum bilirubin \>2.0 mg/dL, and serum creatinine \>2.0 mg/dL * BMI \> or equal to 38 * Stable doses of lipid-lowering medication for less than three months * Stable doses of oral medication for diabetes for less than two months * Abnormal prostate digital rectal examination \[palpable nodule(s)\], elevated PSA (serum PSA \>3.9 ng/mL), IPSS score \> or equal to 19 points, and /or history of prostate cancer. * History of breast cancer * Use of dietary supplement saw palmetto or phytoestrogens and use of any dietary supplements that may increase serum T, such as androstenedione or DHEA with the previous 4 weeks * Know malabsorption syndrome and/or current treatment iwht oral lipase inhibitors * Known history of abuse of alcohol or any drug substance with the previous 2 years * Current use of antiandrogens, estrogens, oral CYP3A4 inducers or inhibitors, or long-acting opioid analgesics * Receipt of any drug as part of a research study within 30 days of initial dose administration in this study * Blood donation within the 12 week period before initial dose administration in this study

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Treated Patients With an Average Serum Testosterone (T) Concentration (Cavg) Between 300 and 1000 ng/dL0, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours post-dose on day 114The number of subjects (116) analyzed includes only those subjects with serum testosterone Cavg data available on study day 114.

Secondary

MeasureTime frameDescription
Percentage of Treated Patients With Maximum Serum T Concentrations (Cmax) Values in Selected Ranges on Day 114 Efficacy Population0, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours post-dose on day 114The number of subjects (116) analyzed includes only those subjects with serum testosterone Cavg data available on study day 114.

Countries

United States

Participant flow

Participants by arm

ArmCount
Oral Testosterone Undecanoate
Oral testosterone undecanoate: Initial dose 200 mg T, BID; dose titration Days 42 and/or 84 based on serum T levels obtained 3-5 hours post AM dose on Days 30 and 72. Dosages increased or decreased in 50 mg increments.
144
Total144

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event3
Overall StudyCa elevated 10.61
Overall StudyHematocrit >54%3
Overall Studylack of venous access1
Overall StudyLost to Follow-up5
Overall StudyNon-compliance with study drug2
Overall StudyOut of country unable to finish study1
Overall Studyprohibited med1
Overall StudyProtocol Violation1
Overall StudyWithdrawal by Subject8
Overall Studywork conflict1

Baseline characteristics

CharacteristicOral Testosterone Undecanoate
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
28 Participants
Age, Categorical
Between 18 and 65 years
116 Participants
Age, Continuous54.8 years
STANDARD_DEVIATION 10.6
Race/Ethnicity, Customized
Race
American Indian or Alaskan Native
1 Participants
Race/Ethnicity, Customized
Race
Asian
13 Participants
Race/Ethnicity, Customized
Race
Black or African American
15 Participants
Race/Ethnicity, Customized
Race
Native Hawaiian or Other Pacific Islander
0 Participants
Race/Ethnicity, Customized
Race
Other
1 Participants
Race/Ethnicity, Customized
Race
White
114 Participants
Region of Enrollment
United States
144 Participants
Sex: Female, Male
Female
0 Participants
Sex: Female, Male
Male
144 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 144
other
Total, other adverse events
46 / 144
serious
Total, serious adverse events
2 / 144

Outcome results

Primary

Percentage of Treated Patients With an Average Serum Testosterone (T) Concentration (Cavg) Between 300 and 1000 ng/dL

The number of subjects (116) analyzed includes only those subjects with serum testosterone Cavg data available on study day 114.

Time frame: 0, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours post-dose on day 114

Population: The number of subjects (116) analyzed includes only those subjects with serum testosterone Cavg data available on study day 114.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Oral Testosterone UndecanoatePercentage of Treated Patients With an Average Serum Testosterone (T) Concentration (Cavg) Between 300 and 1000 ng/dL87 Participants
Secondary

Percentage of Treated Patients With Maximum Serum T Concentrations (Cmax) Values in Selected Ranges on Day 114 Efficacy Population

The number of subjects (116) analyzed includes only those subjects with serum testosterone Cavg data available on study day 114.

Time frame: 0, 1, 2, 3, 4, 6, 8, 12, 24, 48, 72, 96 hours post-dose on day 114

Population: The number of subjects (116) analyzed includes only those subjects with serum testosterone Cavg data available on study day 114.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Oral Testosterone UndecanoatePercentage of Treated Patients With Maximum Serum T Concentrations (Cmax) Values in Selected Ranges on Day 114 Efficacy PopulationCmax less that 1500 ng/dL95 Participants
Oral Testosterone UndecanoatePercentage of Treated Patients With Maximum Serum T Concentrations (Cmax) Values in Selected Ranges on Day 114 Efficacy PopulationCmax between 1500 and 1800 ng/dL10 Participants
Oral Testosterone UndecanoatePercentage of Treated Patients With Maximum Serum T Concentrations (Cmax) Values in Selected Ranges on Day 114 Efficacy PopulationCmax >1800 to 2500 ng/dL7 Participants
Oral Testosterone UndecanoatePercentage of Treated Patients With Maximum Serum T Concentrations (Cmax) Values in Selected Ranges on Day 114 Efficacy PopulationCmax >2500 ng/dL4 Participants

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