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Healthy VolunteersNCT00114114

Dose-Response of Gonadal Steroids and Bone Turnover in Older Men

A study testing Testosterone and Goserelin acetate in people with Healthy Volunteers, run by Massachusetts General Hospital 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 determine the levels of testosterone and/or estradiol at which changes in bone turnover, body composition, strength, sexual function etc. begin to occur in older men. This information may help determine when to intervene with hormone replacement therapy in aging men. Read more about this study

Who is it for?
Ages 60 to 75 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy Volunteers
What is being tested?
Testosterone and Goserelin acetate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
177 participants
Where
1 siteUnited States
Study dates
Sep 2004to 1 Nov 2017
Phase
Interventional
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 60 to 75 years
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthy men age 60 to 75

Who cannot join

  • History of significant cardiac, renal, pulmonary, hepatic, benign prostatic hyperplasia, or malignant disease, current alcohol or illicit drug abuse, or major psychiatric disorders.
  • Current diagnoses of disorders known to affect bone metabolism including hyperthyroidism, hyperparathyroidism, osteomalacia, or Paget's disease.
  • Current use of medications known to affect bone metabolism including estrogens, androgens, anti-estrogens, bisphosphonates, calcitonin, fluoride, oral or inhaled glucocorticoids, suppressive doses of thyroxine, lithium, pharmacological doses of vitamin D (greater than 2000 IU/day), or anti-convulsants.
  • Cognitive or intellectual impairment that precludes complete understanding of the study protocol.
  • History of deep vein thrombosis, pulmonary embolism, or clotting disorders.
  • Serum 25-hydroxyvitamin D < 15 ng/mL
Show all 22Show fewer
  • Serum parathyroid hormone (PTH) < 10 or > 65 pg/mL
  • Serum thyroid stimulating hormone (TSH) < 0.5 or > 5.0 U/L
  • Serum calcium > 10.6 mg/dL
  • Serum creatinine > 2 mg/dL
  • Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) > 2x the upper limit of normal
  • Serum bilirubin > 2 mg/dL
  • Serum alkaline phosphatase > 150 U/L
  • Plasma hemoglobin < 11 gm/dL
  • Hematocrit > 50
  • Fracture within the last 6 months.
  • Serum testosterone level < 270 or > 1070 ng/dL
  • Serum prostate specific antigen (PSA) level > 4 ug/L.
  • International Prostate Symptom Score (IPSS) > 19
  • Systolic blood pressure > 160 or diastolic blood pressure > 95
  • Framingham risk score greater than or equal to 20
  • Difficulty walking 2 blocks

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

The purpose of this study is to determine the levels of testosterone and/or estradiol at which changes in bone turnover, body composition, strength, sexual function etc. begin to occur in older men. This information may help determine when to intervene with hormone replacement therapy in aging men.

Read the detailed description

In this protocol, men age 60-75 will be randomized to one of 6 groups. Groups 1-5 will receive goserelin acetate (Zoladex) plus 0 (placebo gel), 1.25, 2.5, 5, or 10* g/day of testosterone gel (Androgel). Group 6 will receive placebos for both goserelin acetate and testosterone gel. (*Note that the 10 g/day dose was reduced to 7.5 g/day part-way through the trial due to reports of possible increased risk of cardiovascular events with testosterone administration).

Subjects will be blinded with respect to group assignment. Dietary calcium intake will be assessed by a research dietitian and adjustments made through diet or supplements so that calcium intake is between 1000 and 1200 mg/day.

Subjects will be seen on the Clinical Research Center at 4 week intervals for 16 weeks (0, 4, 8, 12, and 16 weeks). At each visit, compliance with Androgel will be assessed by reviewing a medication diary. A standardized series of questions will be posed to each subject to assess potential side effects of the study drugs. Subjects receiving Androgel' will be given a new 4 week supply of medication (except at week 16). A fasting blood and second voided urine sample will be collected. After the blood and urine samples have been obtained, subjects will be given their goserelin injection. The blood and urine tests listed below as well as anthropometric measures, and questionnaires will be performed at each visit. Dual-energy x-ray absorptiometry (DXA), quantitate computed tomography (QCT) scans, and strength assessments will be performed at 0 and 16 weeks only. Subjects who discontinue participation at or after week 8 will be asked if they are willing to have an early discontinuation visit in which all procedures normally done at week 16 will be performed.

The following measures will be assessed:

  • Routine chemistries and prostate specific antigen, PSA (for safety assessment)
  • Bone turnover using blood and urine tests
  • Hormones
  • Lipids
  • Body composition
  • Strength
  • Sexual desire and erectile function
  • Bone mineral density and bone microarchitecture
Being tested
Testosterone, Goserelin acetate
Keywords
Testosterone, Bone turnover, Aging, Body composition, Hypogonadism, Sexual function
Medical subject headings
Hypogonadism

What participants receive

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

  • TestosteroneDrug

    Also called Androgel

    Androgel placebo or 1.25, 2.5, 5. or 10* gms topically each day

  • Goserelin acetateDrug

    Also called Zoladex

    3.6 gms sc every 4 weeks

Study groups in NCT00114114
Study groupRoleWhat they receive
Group 1: 0 g/dayExperimentalZoladex plus Placebo Testosterone (T) gel
Receives: Drug: Testosterone; Drug: Goserelin acetate
Group 2: 1.25 g/dayExperimentalZoladex plus 1.25 g/day T gel
Receives: Drug: Testosterone; Drug: Goserelin acetate
Group 3: 2.5 g/dayExperimentalZoladex plus 2.5 g/day T gel
Receives: Drug: Testosterone; Drug: Goserelin acetate
Group 4: 5 g/dayExperimentalZoladex plus 5 g/day T gel
Receives: Drug: Testosterone; Drug: Goserelin acetate
Group 5: 10* g/dayExperimentalZoladex plus 10* g/day T gel. *Note that the 10 g/day dose was reduced to 7.5 g/day part-way through the trial
Receives: Drug: Testosterone; Drug: Goserelin acetate
Group 6: Placebo/Placebo (PBO/PBO)ExperimentalPlacebo Zoladex plus Placebo T gel (controls)
Receives: Drug: Testosterone; Drug: Goserelin acetate

What is being measured

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

  1. Percent Change in Bone Turnover Marker (Serum C-telopeptide, CTX)

    Measured: Baseline and 16 weeks

Secondary outcomes (4)
  1. Percentage Change in Body Composition: Fat Mass

    Measured: Baseline and 16 weeks

  2. Percentage Change in Thigh Muscle Area

    Assessed by quantitative computed tomography (QCT)

    Measured: Baseline and 16 weeks

  3. Change in Erectile Function Symptoms

    Based on International Index of Erectile Function (IIEF) scale, question #15, which asked subjects to rate their confidence that they could achieve and maintain an erection. Scores range from 1 to 5, with higher scores being better.

    Measured: Baseline and 16 weeks

  4. Change in Libido / Sexual Desire

    Change in libido from baseline (scale ranges from -2 to +2), with -2 being much less, -1 somewhat less, 0 same, +1 somewhat more, +2 much more

    Measured: 16 weeks

Timeline

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

  1. First posted14 Jun 2005 (estimated)
  2. Study startSep 2004
  3. Primary completion1 Nov 2017
  4. Study completion1 Nov 2017

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 N/A
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
177 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00114114
Sponsor's protocol ID
2003-P-001868
Other IDs
R01AG030545
Status last verified
Sep 2019
First submitted
13 Jun 2005
Last updated
8 Oct 2019
Data monitoring committee
Yes

Publications

  • Finkelstein JS, Lee H, Burnett-Bowie SM, Darakananda K, Gentile EC, Goldstein DW, Prizand SH, Krivicich LM, Taylor AP, Wulczyn KE, Leder BZ, Yu EW. Dose-Response Relationships Between Gonadal Steroids and Bone, Body Composition, and Sexual Function in Aging Men. J Clin Endocrinol Metab. 2020 Aug 1;105(8):2779-88. doi: 10.1210/clinem/dgaa318.

    PubMed 32480409
  • Bachmann KN, Huang S, Lee H, Dichtel LE, Gupta DK, Burnett JC Jr, Miller KK, Wang TJ, Finkelstein JS. Effect of Testosterone on Natriuretic Peptide Levels. J Am Coll Cardiol. 2019 Mar 26;73(11):1288-1296. doi: 10.1016/j.jacc.2018.12.062.

    PubMed 30898204
  • Finkelstein JS, Lee H, Leder BZ, Burnett-Bowie SA, Goldstein DW, Hahn CW, Hirsch SC, Linker A, Perros N, Servais AB, Taylor AP, Webb ML, Youngner JM, Yu EW. Gonadal steroid-dependent effects on bone turnover and bone mineral density in men. J Clin Invest. 2016 Mar 1;126(3):1114-25. doi: 10.1172/JCI84137. Epub 2016 Feb 22.

    PubMed 26901812
  • Finkelstein JS, Lee H, Burnett-Bowie SA, Pallais JC, Yu EW, Borges LF, Jones BF, Barry CV, Wulczyn KE, Thomas BJ, Leder BZ. Gonadal steroids and body composition, strength, and sexual function in men. N Engl J Med. 2013 Sep 12;369(11):1011-22. doi: 10.1056/NEJMoa1206168.

    PubMed 24024838

Questions about this trial

What is this clinical trial studying?

A study testing Testosterone and Goserelin acetate in people with Healthy Volunteers, run by Massachusetts General Hospital 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 1 inclusion and 22 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 8 Oct 2019. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Sep 2019). 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?

Percent Change in Bone Turnover Marker (Serum C-telopeptide, CTX) (time frame: Baseline and 16 weeks). 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 NCT00114114, which also lists 4 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 8 Oct 2019.

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