A Study of the Effect of Testosterone Replacement Therapy on Blood Pressure in Adult Male Participants With Hypogonadism
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ClinicalTrials.gov Identifier: NCT04456296 |
Recruitment Status :
Active, not recruiting
First Posted : July 2, 2020
Last Update Posted : February 13, 2023
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Testosterone is the principal androgen produced by the male testes. Hypogonadism is the result of inadequate production of testosterone by the Leydig cells of the testes and is reflected by total serum concentrations of testosterone of < 300 nanograms (ng)/deciliters (dL), with discernible diurnal pattern. The etiology of hypogonadism may be primary or secondary. The treatment of males with primary, and in some cases, secondary hypogonadism includes administration of testosterone.
Testim® and Fortesta® are topical gels that when applied daily help to increase the total testosterone levels in the blood through skin absorption. Aveed® is an injectable form of testosterone treatment and participants randomized to this treatment arm will receive 3 injections over the course of 16 weeks.
This study is designed to evaluate the effect on blood pressure of approved testosterone products (Testim®, Fortesta®, and Aveed®) after 16 weeks of therapy using 24-hour ambulatory blood pressure to reveal shifts in blood pressure levels.
Condition or disease | Intervention/treatment | Phase |
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Hypogonadism Hypogonadism, Male Hypogonadotropic Hypogonadism | Drug: Aveed Injectable Product Drug: Fortesta Drug: Testim | Phase 4 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 618 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | An Open-Label, Randomized, Parallel-Group, Three Treatment Arm, Multicenter Study on Hypogonadal Males to Evaluate the Effect on 24-Hour Ambulatory Blood Pressure After 16-Week Continuous Administration With Marketed Testosterone Products |
Actual Study Start Date : | June 30, 2020 |
Estimated Primary Completion Date : | July 6, 2023 |
Estimated Study Completion Date : | July 6, 2023 |

Arm | Intervention/treatment |
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Active Comparator: AVEED (Testosterone Undecanoate Injection)
Fixed dosage level of 750 milligrams (mg)/3 milliliters (mL) administered by intramuscular injections.
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Drug: Aveed Injectable Product
Testosterone undecanoate administered by intramuscular injections.
Other Name: Testosterone undecanoate |
Active Comparator: FORTESTA (Testosterone Gel)
40 mg once daily topical gel administration.
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Drug: Fortesta
Testosterone gel administered topically. The daily dose of the study drug will be titrated for each participant, according to approved dosage and administration instructions, until the circulating testosterone concentrations of the participant reaches normal concentrations (300-1000 ng/dL).
Other Name: Testosterone gel |
Active Comparator: TESTIM (Testosterone Gel)
50 mg once daily topical gel administration.
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Drug: Testim
Testosterone gel administered topically. The daily dose of the study drug will be titrated for each participant, according to approved dosage and administration instructions, until the circulating testosterone concentrations of the participant reaches normal concentrations (300-1000 ng/dL).
Other Name: Testosterone gel |
- Change from Baseline in 24-Hour Average Systolic Ambulatory Blood Pressure [ Time Frame: Baseline (Day 1), Week 16 ]
- Change from Baseline in 24-Hour Average Arterial Pressure [ Time Frame: Baseline (Day 1), Week 16 ]
- Change from Baseline in 24-Hour Average Systolic Blood Pressure [ Time Frame: Baseline (Day 1), Week 16 ]
- Change from Baseline in 24-Hour Average Diastolic Blood Pressure [ Time Frame: Baseline (Day 1), Week 16 ]
- Change from Baseline in 24-Hour Average Heart Rate [ Time Frame: Baseline (Day 1), Week 16 ]
- Change from Baseline in 24-Hour Average Pulse Pressure [ Time Frame: Baseline (Day 1), Week 16 ]
- Percent of Participants Taking New Antihypertensive Medications [ Time Frame: Week 16 ]
- Percent of Participants with Dose Increases From Baseline in Antihypertensive Medications [ Time Frame: Week 16 ]

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Male |
Gender Based Eligibility: | Yes |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Have a diagnosis of primary hypogonadism or hypogonadotropic hypogonadism.
- Have a total serum testosterone at screening < 300 ng/dL based on 2 blood samples obtained at 10 am (+/-2 hours) on 2 separate occasions at least 48 hours apart
- Be naïve to androgen replacement or washout of 12 weeks following intramuscular androgen injections; 4 weeks following topical or buccal, nasal, or oral androgens.
- Have a screening blood pressure at rest of less than 140 millimeters of mercury (mm Hg) for systolic blood pressure and less than 90 mm Hg for diastolic blood pressure.
- Be judged to be in good health.
- Participants enrolled in the Testim or Fortesta treatment arms: take necessary precautions to avoid skin-to-skin contact and potential transfer and if male use effective contraception.
- Be willing and able to cooperate with the requirements of the study.
Exclusion Criteria:
- Is from a vulnerable population, as defined by the US Code of Federal Regulations (CFR) Title 45, Part 46, Section 46.111(b) and other local and national regulations, including but not limited to, employees (temporary, part-time, full time, etc) or a family member of the research staff conducting the study, or of the sponsor, or of the contract research organization, or of the Institutional Review Board/Independent Ethics Committee (IRB/IEC).
- Has a history of significant sensitivity or allergy to the study drugs, including androgens, or product excipients.
- Has a history of or medical examination findings renal, hepatic, neurologic, hematologic, endocrine, oncologic, pulmonary, immunologic, psychiatric conditions, cardiovascular disease/dysrhythmia) or any other condition(s) that restricts study participation.
- Has clinically significant changes in any medications (including dosages) or medical conditions in the 28 days prior to screening
- Is not on a stable medication regimen for at least 3 months for the treatment of a chronic condition.
- Has had a cardiovascular and/or cerebrovascular event within the last 6 months.
- Needs blood pressure cuff size larger than 50 centimeters.
- Works a night shift or performs heavy manual labor.
- Has any known contraindication(s) to active study treatment including, but not limited to: known or suspected carcinoma of the prostate or breast, previous history of cancer (except basal cell carcinoma of the skin) liver disease, active deep vein thrombosis, atrial fibrillation, untreated sleep apnea, or is immune compromised.
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Uses known inhibitors (for example, ketoconazole) or inducers of cytochrome P450 3A (for example, dexamethasone, phenytoin, rifampin, carbamazepine) of cytochrome P450 3A (CYP3A) within 30 days prior to study drug administration and through the end of the study.
- Uses any of the above listed drugs within 5 half lives of the last dose in the past 6 months prior to study drug administration.
- Has received any of the above listed drugs by injection within 30 days or 10 half lives (whichever is longer) prior to study drug administration.
- Uses nutraceuticals or homeopathic compounds.
- Has a history of drug or alcohol abuse within 6 months prior to study drug administration.
- Has untreated moderate to severe depression.
- Has any skin lesions/cuts/injury at the application site.
- Has suspected reversible hypogonadism.
- Donated blood or blood products or experienced significant blood loss within 90 days prior to study drug administration.
- Intends to conceive at any time during the study.
- Donated bone marrow within 6 months prior to study drug administration.
- Has participated in a previous investigational study or received treatment with an investigational product within 30 days of screening.
- Has a diagnosis of, is undergoing therapy for, or has received therapy for a hematologic malignancy in the 5 years prior to screening.
- Has a history of substance abuse or is taking any substance of abuse (Note: participants on a stable dose of any medications that have been prescribed by a healthcare practitioner for a properly documented medical condition are exempt).
- Abnormal electrocardiogram (ECG) (QT prolongation with QTc ≥450 milliseconds).
- Has evidence of abnormalities on physical examination, vital signs, ECG, or clinical lab values, unless judged to be clinically insignificant by the investigator
- Has any other condition that might indicate the participant to be unsuitable for the study.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04456296

Study Director: | Karen Kang | Endo Pharmaceuticals |
Responsible Party: | Endo Pharmaceuticals |
ClinicalTrials.gov Identifier: | NCT04456296 |
Other Study ID Numbers: |
EN3000-101 |
First Posted: | July 2, 2020 Key Record Dates |
Last Update Posted: | February 13, 2023 |
Last Verified: | February 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Supporting Materials: |
Study Protocol Statistical Analysis Plan (SAP) |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Hypogonadism Eunuchism Gonadal Disorders Endocrine System Diseases Methyltestosterone Testosterone Testosterone undecanoate Testosterone enanthate |
Testosterone 17 beta-cypionate Androgens Hormones Hormones, Hormone Substitutes, and Hormone Antagonists Physiological Effects of Drugs Antineoplastic Agents, Hormonal Antineoplastic Agents Anabolic Agents |