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HealthyPhase 1Oral T8NCT01167829

ORAL T-8 Oral Testosterone for Male Hormonal Contraception

A Phase 1 study testing Oral Testosterone and Acyline in people with Healthy, run by University of Washington at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to test how the body absorbs a new form of oral testosterone (T). On Day 1 and Day 9 there are overnight stays in the General Clinical Research Center at the University of Washington to monitor blood testosterone levels over a 24-hour period. Read more about this study

Who is it for?
Ages 18 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
Oral Testosterone and Acyline
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
1 siteUnited States
Study dates
Jul 2010to Jun 2012
Phase
Phase 1
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 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • able and willing to
  • not participate in another drug study or donate blood, not take medications
  • use contraception, comply with the protocol

Who cannot join

  • abnormal evaluation, based on physical exam, medical history, blood tests (including serum chemistry, hematology, HIV, HCV, hormone levels)
  • history or current use of alcohol, drug, steroid abuse, >3 alcohol drinks/day
  • history of testicular disease, severe testicular trauma, major psychiatric disorder, bleeding disorders, current use of anti-coagulants or testosterone
  • participation in hormonal drug study within past month

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Washington

    Seattle, Washington, 98195

Other trials in United States

About this study

Official title: Pharmacokinetics of Modified Slow-Release Oral Testosterone Over 10 Days in Normal Men With Experimental Hypogonadism

The purpose of this study is to test how the body absorbs a new form of oral testosterone (T). On Day 1 and Day 9 there are overnight stays in the General Clinical Research Center at the University of Washington to monitor blood testosterone levels over a 24-hour period.

Read the detailed description

We will administer two experimental drugs, acyline and oral testosterone. Acyline shots will be given on Day 0 to turn off the body's testosterone production for about 10-14 days.

The next day, Day 1, subjects begin taking 300 mg modified slow-release testosterone pill by mouth, three times a day, around 9 AM, 1 PM, and 7 PM for a total of 27 pills.

There are overnight stays on Day 1 and Day 9 to allow monitoring of blood testosterone levels over a 24 hour period, from @9 AM to 9 AM the next morning. At those visits, blood is drawn at baseline (before taking the pill) and at 1, 2, 4, 5, 6, 8, 10, 11, 12, 14, 16, and 24 hours after the morning dose.

Acyline is an experimental drug. The FDA allows its use only in research with a small number of volunteers. We have used acyline in over 125 men without serious side effects. The use of testosterone in this study is experimental and there may be unknown or unanticipated risks.

Conditions
Healthy
Being tested
Oral Testosterone, Acyline
Keywords
Experimental, Acyline plus 27 oral testosterone pills, taken 3x/day

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Oral TestosteroneDrug

    Oral Testosterone: 300 mg, pills, three times daily Day 1 - 10 (total of 27 pills)

  • AcylineDrug

    300 ug/kg injection on Day 0

Study groups in NCT01167829
Study groupRoleWhat they receive
Acyline and oral testosteroneExperimentalNot described
Receives: Drug: Oral Testosterone; Drug: Acyline

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Maximum Testosterone Concentration

    initial pharmacokinetics [PK] (day 1) of oral testosterone dosed 3 times daily and the PK after 9 days of treatment

    Measured: baseline & day 9

  2. Mean Testosterone Concentration

    initial 24-hour pharmacokinetics (PK) of oral testosterone dosed 3 times daily and post 24-hour PK after 9 days of treatment

    Measured: baseline & day 9

Secondary outcomes (8)
  1. Maximum Dihydrotestosterone (DHT) Concentration

    Measured: baseline & day 9

  2. Mean Dihydrotestosterone (DHT) Concentration

    Measured: baseline & day 9

  3. Maximum Sex Hormone-Binding Globulin (SHGB)Concentration

    Measured: baseline & day 9

  4. Mean SHGB Concentration

    Measured: baseline & day 9

  5. Maximum Estradiol Concentration

    Measured: baseline & day 9

  6. Mean Estradiol Concentration

    Measured: baseline & day 9

  7. Free T Maximum Concentration

    Free T normal range 4.7-18 ng/dL

    Measured: baseline & day 9

  8. Free Testosterone Mean Concentration

    Free T normal range 4.7-18 ng/dL

    Measured: baseline & day 9

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted22 Jul 2010 (estimated)
  2. Study startJul 2010
  3. Primary completionOct 2010
  4. Study completionJun 2012

Resources

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 1
Primary purpose
Health services research
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01167829
Sponsor's protocol ID
38636-D
Acronym
Oral T8
Status last verified
Aug 2013
First submitted
20 Jul 2010
Last updated
6 Sep 2013
Data monitoring committee
No

Publications

  • Katznelson L, Finkelstein JS, Schoenfeld DA, Rosenthal DI, Anderson EJ, Klibanski A. Increase in bone density and lean body mass during testosterone administration in men with acquired hypogonadism. J Clin Endocrinol Metab. 1996 Dec;81(12):4358-65. doi: 10.1210/jcem.81.12.8954042.

    PubMed 8954042
  • Behre HM, Kliesch S, Leifke E, Link TM, Nieschlag E. Long-term effect of testosterone therapy on bone mineral density in hypogonadal men. J Clin Endocrinol Metab. 1997 Aug;82(8):2386-90. doi: 10.1210/jcem.82.8.4163.

    PubMed 9253305
  • Bhasin S, Bremner WJ. Clinical review 85: Emerging issues in androgen replacement therapy. J Clin Endocrinol Metab. 1997 Jan;82(1):3-8. doi: 10.1210/jcem.82.1.3640. No abstract available.

    PubMed 8989221
  • Wang C, Alexander G, Berman N, Salehian B, Davidson T, McDonald V, Steiner B, Hull L, Callegari C, Swerdloff RS. Testosterone replacement therapy improves mood in hypogonadal men--a clinical research center study. J Clin Endocrinol Metab. 1996 Oct;81(10):3578-83. doi: 10.1210/jcem.81.10.8855804.

    PubMed 8855804
  • Snyder PJ, Peachey H, Berlin JA, Hannoush P, Haddad G, Dlewati A, Santanna J, Loh L, Lenrow DA, Holmes JH, Kapoor SC, Atkinson LE, Strom BL. Effects of testosterone replacement in hypogonadal men. J Clin Endocrinol Metab. 2000 Aug;85(8):2670-7. doi: 10.1210/jcem.85.8.6731.

    PubMed 10946864
  • Kelch RP, Jenner MR, Weinstein R, Kaplan SL, Grumbach MM. Estradiol and testosterone secretion by human, simian, and canine testes, in males with hypogonadism and in male pseudohermaphrodites with the feminizing testes syndrome. J Clin Invest. 1972 Apr;51(4):824-30. doi: 10.1172/JCI106877.

    PubMed 4259253
  • Weinstein RL, Kelch RP, Jenner MR, Kaplan SL, Grumbach MM. Secretion of unconjugated androgens and estrogens by the normal and abnormal human testis before and after human chorionic gonadotropin. J Clin Invest. 1974 Jan;53(1):1-6. doi: 10.1172/JCI107526.

    PubMed 4271572
  • Herbst KL, Anawalt BD, Amory JK, Bremner WJ. Acyline: the first study in humans of a potent, new gonadotropin-releasing hormone antagonist. J Clin Endocrinol Metab. 2002 Jul;87(7):3215-20. doi: 10.1210/jcem.87.7.8675.

    PubMed 12107227
  • Herbst KL, Coviello AD, Page S, Amory JK, Anawalt BD, Bremner WJ. A single dose of the potent gonadotropin-releasing hormone antagonist acyline suppresses gonadotropins and testosterone for 2 weeks in healthy young men. J Clin Endocrinol Metab. 2004 Dec;89(12):5959-65. doi: 10.1210/jc.2003-032123.

    PubMed 15579744
  • Bagatell CJ, Bremner WJ. Androgens in men--uses and abuses. N Engl J Med. 1996 Mar 14;334(11):707-14. doi: 10.1056/NEJM199603143341107. No abstract available.

    PubMed 8594431
  • Fossa SD, Opjordsmoen S, Haug E. Androgen replacement and quality of life in patients treated for bilateral testicular cancer. Eur J Cancer. 1999 Aug;35(8):1220-5. doi: 10.1016/s0959-8049(99)00123-9.

    PubMed 10615233
  • Swerdloff RS, Wang C, Cunningham G, Dobs A, Iranmanesh A, Matsumoto AM, Snyder PJ, Weber T, Longstreth J, Berman N. Long-term pharmacokinetics of transdermal testosterone gel in hypogonadal men. J Clin Endocrinol Metab. 2000 Dec;85(12):4500-10. doi: 10.1210/jcem.85.12.7045.

    PubMed 11134099
  • Snyder CN, Clark RV, Caricofe RB, Bush MA, Roth MY, Page ST, Bremner WJ, Amory JK. Pharmacokinetics of 2 novel formulations of modified-release oral testosterone alone and with finasteride in normal men with experimental hypogonadism. J Androl. 2010 Nov-Dec;31(6):527-35. doi: 10.2164/jandrol.109.009746. Epub 2010 Apr 8.

    PubMed 20378927
  • de Ronde W. Hyperandrogenism after transfer of topical testosterone gel: case report and review of published and unpublished studies. Hum Reprod. 2009 Feb;24(2):425-8. doi: 10.1093/humrep/den372. Epub 2008 Oct 23.

    PubMed 18948313
  • Brachet C, Vermeulen J, Heinrichs C. Children's virilization and the use of a testosterone gel by their fathers. Eur J Pediatr. 2005 Oct;164(10):646-7. doi: 10.1007/s00431-005-1714-z. Epub 2005 Jul 16.

    PubMed 16025298

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Oral Testosterone and Acyline in people with Healthy, run by University of Washington 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 3 inclusion and 4 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 6 Sep 2013. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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 23 Aug 2013). 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?

Maximum Testosterone Concentration (time frame: baseline & day 9). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01167829, which also lists 17 linked publications.

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 6 Sep 2013.

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