HypogonadismPhase 2NCT02222558
Oral Testosterone for the Treatment of Hypogonadism in Males
A Phase 2 study testing TSX-002 in people with Hypogonadism, run by TesoRx Pharma, LLC at 1 site in United States.
Trial summary
Low testosterone is a condition that occurs when the body is unable to produce sufficient quantities of testosterone. The medical name for low testosterone is hypogonadism. Hypogonadism can be caused by many factors. Symptoms include: decrease in libido, lack of energy and mood swings. Read more about this study
- Who is it for?
- Ages 18 to 70 years, men only
- Conditions the study is for
- Hypogonadism
- What is being tested?
- TSX-002
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 25 participants
- Where
- 1 siteUnited States
- Study dates
- Sep 2014to May 2015
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 70 years
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Symptomatic hypogonadal male subjects (Testosterone > 100 and <300 ng/dL, two separate 10 am samples one week apart),
- 18-70 years old,
- Willing and able to provide informed consent and to participate in all 3 periods of the study.
- BMI < 35 kg/m2.
Who cannot join
- Malabsorption conditions (e.g. history of cholecystectomy, Inflammatory Bowel Disease, Pancreatitis, Celiac disease, Sprue, Dumping syndrome, Bariatric surgery; Short bowel syndrome, Lactose intolerance);
- Alcoholics or substance abuse;
- Gastroparesis; IPSS (International Prostate Symptom score) > 19; PSA (prostate-specific antigen)> 4 ng/ml;
- Congestive Heart Failure, uncontrolled (NYHC >1);
- Uncontrolled sleep apnea;
- Topical or injectable testosterone replacement therapy (any kind including dehydroepiandrosterone (DHEA) and nutritional supplements) within past 4 weeks;
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- Testopel excluded if within 2 years;
- Aveed excluded if within past 6 months;
- Hematocrit > 50.
Trial locations and contacts
1 site in 1 country.
United States1 site
San Diego Sexual Medicine
San Diego, California, 92120
About this study
Official title: A Phase 2B Study to Determine the Dose Response Pharmacokinetics of TSX-002 (Testosterone) in Hypogonadal Males
Low testosterone is a condition that occurs when the body is unable to produce sufficient quantities of testosterone. The medical name for low testosterone is hypogonadism. Hypogonadism can be caused by many factors. Symptoms include: decrease in libido, lack of energy and mood swings. The goal of testosterone replacement therapy is to return testosterone levels to the normal range and relieve symptoms.
Read the detailed description
The purpose of this study is to evaluate the pharmacokinetic (PK) parameters of testosterone after administration of TSX-002 (easy to swallow testosterone capsules) to hypogonadal men. This will be determined by blood sampling at specified times during the study. The study is also intended to evaluate the PK parameters of the testosterone metabolite, dihydrotestosterone (DHT), as well as the safety and tolerability of TSX-002. The study consists of three (3) periods, for which TSX-002 will be taken orally at various doses. Study duration is approximately 9 weeks.
- Conditions
- Hypogonadism
- Being tested
- TSX-002
- Keywords
- hypogonadism, Gonadal Disorders, Endocrine System Diseases, Testosterone, Testosterone enanthate, Testosterone undecanoate, Testosterone 17 beta-cypionate, Methyltestosterone, Androgens, Hormones, Hormones,, Hormone Substitutes,, Hormone Antagonists, Physiological Effects of Drugs, Pharmacologic Actions, Therapeutic Uses, Anabolic Agents, dihydrotestosterone
- Medical subject headings
- Hypogonadism, Gonadal Disorders, Endocrine System Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TSX-002Drug
Also called Testosterone
TSX-002 are capsules with testosterone as the active ingredient.
| Study group | Role | What they receive |
|---|---|---|
| Period 1: Single Dose | Experimental | Period 1: Each study subject will receive an escalating single dose of TSX-002 (60, 90, 120, 180, 240 mg), with a minimum 3 day wash-out between each of the 5 escalating doses. After completing the 240 mg dose, a 7 day wash-out period will occur prior to Period 2. Receives: Drug: TSX-002 |
| Period 2: Two Times Daily Dosing 90 mg | Experimental | Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. Receives: Drug: TSX-002 |
| Period 3: Two Times Daily Dosing 120 mg | Experimental | Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated.
Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted two times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. Receives: Drug: TSX-002 |
| Period 3: Three Times Daily Dosing 90 mg | Experimental | Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated.
Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted three times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. Receives: Drug: TSX-002 |
| Period 3: Two Times Daily Dosing 180 mg | Experimental | Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated.
Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted two times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. Receives: Drug: TSX-002 |
| Period 3: Three Times Daily Dosing 120 mg | Experimental | Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated.
Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted three times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. Receives: Drug: TSX-002 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Percentage of Responders
Percentage of subjects with response to treatment within each period. Response to treatment was considered when Testosterone Cavg was within the physiological range of Testosterone concentration, i.e. 300 - 1050 ng/dL.
Measured: Cavg from samples at Period 1: post dose hrs 0,1,2,3,4,5,6,8,12,16,24; Period 2: hrs 0,2,3,4,5,6,8,12,14,15,16,17,18,20,24; Period 3 BID: hrs 0,2,3,4,5,6,8,12,14,15,16,17,18,20,24; Period 3 TID: hrs 0,2,3,4,5,6,8,10,11,12,13,14,16,18,19,20,21,22,24
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Aug 2014 (estimated)
- Study startSep 2014
- Primary completionApr 2015
- Study completionMay 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for HypogonadismStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 25 participants (actual)
Sponsor and investigators
- Lead sponsor
- TesoRx Pharma, LLC
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Irwin Goldstein, MD, Principal investigator, San Diego Sexual Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02222558
- Sponsor's protocol ID
- TT-006
- Status last verified
- Apr 2016
- First submitted
- 18 Aug 2014
- Last updated
- 30 May 2016
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 May 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2B Study to Determine the Dose Response Pharmacokinetics of TSX-002 (Testosterone) in Hypogonadal Males
- ClinicalTrials.gov ID
- NCT02222558
- Acronym / sponsor ID
- TT-006
- Conditions
- Hypogonadism
- Keywords
- hypogonadism, Gonadal Disorders, Endocrine System Diseases, Testosterone, Testosterone enanthate, Testosterone undecanoate, Testosterone 17 beta-cypionate, Methyltestosterone
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 25 participants (actual)
- Lead sponsor
- TesoRx Pharma, LLCIndustry (pharma, biotech, devices)
- Study start
- Sep 2014
- Primary completion
- Apr 2015 (actual)
- Study completion
- May 2015 (actual)
- First posted
- 21 Aug 2014 (estimated)
- Results
- Posted 30 May 2016
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Low testosterone is a condition that occurs when the body is unable to produce sufficient quantities of testosterone. The medical name for low testosterone is hypogonadism. Hypogonadism can be caused by many factors. Symptoms include: decrease in libido, lack of energy and mood swings. The goal of testosterone replacement therapy is to return testosterone levels to the normal range and relieve symptoms.
Detailed description
The purpose of this study is to evaluate the pharmacokinetic (PK) parameters of testosterone after administration of TSX-002 (easy to swallow testosterone capsules) to hypogonadal men. This will be determined by blood sampling at specified times during the study. The study is also intended to evaluate the PK parameters of the testosterone metabolite, dihydrotestosterone (DHT), as well as the safety and tolerability of TSX-002. The study consists of three (3) periods, for which TSX-002 will be taken orally at various doses. Study duration is approximately 9 weeks.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| Period 1: Single Dose | Experimental | Drug: TSX-002Period 1: Each study subject will receive an escalating single dose of TSX-002 (60, 90, 120, 180, 240 mg), with a minimum 3 day wash-out between each of the 5 escalating doses. After completing the 240 mg dose, a 7 day wash-out period will occur prior to Period 2. |
| Period 2: Two Times Daily Dosing 90 mg | Experimental | Drug: TSX-002Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. |
| Period 3: Two Times Daily Dosing 120 mg | Experimental | Drug: TSX-002Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated. Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted two times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. |
| Period 3: Three Times Daily Dosing 90 mg | Experimental | Drug: TSX-002Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated. Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted three times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. |
| Period 3: Two Times Daily Dosing 180 mg | Experimental | Drug: TSX-002Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated. Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted two times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. |
| Period 3: Three Times Daily Dosing 120 mg | Experimental | Drug: TSX-002Period 2: Each study subject dose is 90 mg twice daily of TSX-002, fasted for 17 days. On Day 15, a serum Testosterone level will be drawn and used to dose titrate and randomized to BID or TID (as eligible). The TSX-002 dose will be down or up titrated. Period 3: Begins Day 18 with the first adjusted TSX-002 dose administered fasted three times daily. The Testosterone level on Day 22 will be used to perform the final, TSX-002 dose adjustment. |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Symptomatic hypogonadal male subjects (Testosterone > 100 and <300 ng/dL, two separate 10 am samples one week apart),
- 18-70 years old,
- Willing and able to provide informed consent and to participate in all 3 periods of the study.
- BMI < 35 kg/m2.
Key exclusion criteria (9 listed)
- Malabsorption conditions (e.g. history of cholecystectomy, Inflammatory Bowel Disease, Pancreatitis, Celiac disease, Sprue, Dumping syndrome, Bariatric surgery; Short bowel syndrome, Lactose intolerance);
- Alcoholics or substance abuse;
- Gastroparesis; IPSS (International Prostate Symptom score) > 19; PSA (prostate-specific antigen)> 4 ng/ml;
- Congestive Heart Failure, uncontrolled (NYHC >1);
- Uncontrolled sleep apnea;
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| TSX-002Also: TestosteroneTSX-002 are capsules with testosterone as the active ingredient. | Drug | Period 1: Single Dose, Period 2: Two Times Daily Dosing 90 mg, Period 3: Three Times Daily Dosing 120 mg, Period 3: Three Times Daily Dosing 90 mg, Period 3: Two Times Daily Dosing 120 mg, Period 3: Two Times Daily Dosing 180 mg |
Primary outcome
Percentage of Responders
Time frame: Cavg from samples at Period 1: post dose hrs 0,1,2,3,4,5,6,8,12,16,24; Period 2: hrs 0,2,3,4,5,6,8,12,14,15,16,17,18,20,24; Period 3 BID: hrs 0,2,3,4,5,6,8,12,14,15,16,17,18,20,24; Period 3 TID: hrs 0,2,3,4,5,6,8,10,11,12,13,14,16,18,19,20,21,22,24
Percentage of subjects with response to treatment within each period. Response to treatment was considered when Testosterone Cavg was within the physiological range of Testosterone concentration, i.e. 300 - 1050 ng/dL.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 May 2016.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Irwin Goldstein, MD principal investigator
San Diego Sexual Medicine
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing TSX-002 in people with Hypogonadism, run by TesoRx Pharma, LLC at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 30 May 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 30 May 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Percentage of Responders (time frame: Cavg from samples at Period 1: post dose hrs 0,1,2,3,4,5,6,8,12,16,24; Period 2: hrs 0,2,3,4,5,6,8,12,14,15,16,17,18,20,24; Period 3 BID: hrs 0,2,3,4,5,6,8,12,14,15,16,17,18,20,24; Period 3 TID: hrs 0,2,3,4,5,6,8,10,11,12,13,14,16,18,19,20,21,22,24). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 May 2016; AzTrials last refreshed its copy on 8 Nov 2026.