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HealthyPhase 2NCT00112151

TEAM: Testosterone Supplementation and Exercise in Elderly Men

A Phase 2 study testing LowT, Resistance Training and HighT in people with Healthy, run by University of Colorado, Denver 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 evaluate the effects of testosterone supplementation (AndroGel) on body composition, strength, endurance, cognition, and function in older men. Read more about this study

Who is it for?
Ages 60 years and older, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy
What is being tested?
LowT, Resistance Training and HighT
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
167 participants
Where
1 siteUnited States
Study dates
Jan 2005to Nov 2010
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 60 years and older
  • Men only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Generally healthy, untrained men 60 years or older with low-normal testosterone levels (200-350ng/dL)
  • Must reside in the Denver metro area

Who cannot join

  • Prostate/breast cancer
  • Unable to exercise safely
  • severe obesity (>34 body mass index [BMI])
  • Polycythemia
  • Diabetes
  • Use of drugs that could affect T levels
Show all 9Show fewer
  • Cognitive dysfunction (MMSE less than 24)
  • PSA above the age-adjusted normal level or AUA greater than 19
  • Unable to pass stress test due to active CAD

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Colorado Health Sciences Center

    Denver, Colorado, 80262

Other trials in United States

About this study

Official title: Testosterone Supplementation and Exercise in Elderly Men

The purpose of this study is to evaluate the effects of testosterone supplementation (AndroGel) on body composition, strength, endurance, cognition, and function in older men.

Read the detailed description

Studies suggest that testosterone (T) replacement in healthy elderly men has beneficial effects on body composition, muscle, bone, memory, and behavior, but the risks of chronic treatment, especially on the prostate, heart, and sleep quality, are not entirely clear. Therefore, it is most desirable to supplement into the lowest "effective" range in elderly men. However, the effects of lower than usual replacement T doses have not been well studied. Furthermore, the possible important interaction of exercise to enhance the positive effects of T supplementation, yet mitigate the possible side effects, has not been studied in older men.

This one-year study will enroll 150 men with low-normal to slightly below normal serum total T levels. Participants will be randomized into one of 6 treatment groups to receive T supplementation (AndroGel) of 25mg/day, 50 mg/day or a placebo crossed with progressive resistance training (PRT) exercise 3 times a week versus none. At the end of the study, participants in the exercise-control group will be offered PRT.

Please see link below for updated version of full protocol.

Conditions
Healthy
Being tested
LowT, Resistance Training, Placebo, HighT
Keywords
andropause, hypogonadism, AndroGel, exercise, PRT, Testosterone, T supplementation
Medical subject headings
Hypogonadism, Motor Activity

What participants receive

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

  • LowTDrug

    Also called Androgel

    Low Dose Testosterone Group applies one 2.5 gm active packet and one placebo packet, titrated to a target blood range of 400-550 pg/ml)during the first 12 weeks. Total exposure duration is 52 weeks.

  • Resistance TrainingBehavioural

    Also called PRT, Progressive resistance training

    Weight training 45-60 minutes 3 times per week

  • PlaceboDrug

    2.5 gm gel packets applied once daily. Sham adjustments made during the first 12 weeks. Duration is 52 weeks.

  • HighTDrug

    Also called Androgel

    High Dose Testosterone Group applies two 2.5 gm active packets, titrated to a target blood range of 600-1000 pg/ml)during the first 12 weeks. Total exposure duration is 52 weeks.

Study groups in NCT00112151
Study groupRoleWhat they receive
LowT+Resistance TrainingExperimentalLow Dose Testosterone Group applies one 2.5 gm active packet and one placebo packet, titrated to a target blood range of 400-550 pg/ml) 1 year standard Progressive Resistance Training(PRT) program
Receives: Drug: LowT; Behavioral: Resistance Training
LowT+No Resistance trainingExperimentalLow Dose Testosterone Group applies one 2.5 gm active packet and one placebo packet, titrated to a target blood range of 400-550 pg/ml) No exercise program
Receives: Drug: LowT
HighT+Resistance TrainingExperimentalHigh Dose Testosterone Group applies two 2.5 gm active packets, titrated to a target blood range of 600-1000 pg/ml) 1 year standard Progressive Resistance Training(PRT) program
Receives: Behavioral: Resistance Training; Drug: HighT
HighT+No Resistance TrainingExperimentalHigh Dose Testosterone Group applies two 2.5 gm active packets, titrated to a target blood range of 600-1000 pg/ml) No exercise program
Receives: Drug: HighT
Placebo+Resistance TrainingActive comparatorPlacebo Group applies two 2.5 gm placebo packets 1 year standard Progressive Resistance Training(PRT) program
Receives: Behavioral: Resistance Training; Drug: Placebo
Placebo+No Resistance TrainingPlacebo comparatorPlacebo group applies two 2.5 gm placebo packets No exercise program
Receives: Drug: Placebo

What is being measured

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

  1. Physical Function (CS-PFP Total Score)

    Continuous-scale physical function performance test (CS-PFP) which comprises 15 everyday tasks requiring upper and lower body strength and flexibility, balance, coordination and endurance. The CS-PFP was developed to measure performance in higher functioning adults with minimal floor or ceiling effects, and is valid, reliable and sensitive to change. Total and domain scores are scaled from 0 to 100, with higher scores indicating better function.

    Measured: Baseline and 12 months

Secondary outcomes (5)
  1. Upper Body Muscle Strength (1-RM, kg)

    The maximal weight a participant could lift once (1-repetition maximum, 1-RM) was assessed at baseline and 12 months. The average of the difference from baseline in 4 upper-body 1-RM measures (bench press,incline press, overhead pull-down, and seated row) are represented.

    Measured: Baseline and 12 months

  2. Lower Body Muscle Strength (1-RM, kg)

    The maximal weight a participant could lift once [1-repetition maximum, 1-RM] was assessed at baseline and 12 months. The average of the difference from baseline in 3 lower-body 1-RM measures (knee extension, knee flexion, and seated leg press)) are represented.

    Measured: Baseline and 12 months

  3. Power (Power Rig, Watts)

    Leg extensor power was evaluated using a Nottingham leg extensor power rig (watts).

    Measured: Baseline and 12 months

  4. Fat Mass (kg)

    Total change in Fat mass (kg) as evaluated by DXA

    Measured: Baseline and 12 months

  5. Fat Free Mass (kg)

    Total change in Fat free mass (kg) as evaluated by DXA

    Measured: Baseline and 12 months

Timeline

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

  1. First posted30 May 2005 (estimated)
  2. Study startJan 2005
  3. Primary completionNov 2010
  4. Study completionNov 2010

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
167 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00112151
Sponsor's protocol ID
02-1056
Other IDs
R01AG019339
Status last verified
Aug 2020
First submitted
27 May 2005
Last updated
2 Sep 2020
Data monitoring committee
Yes

Publications

  • Schwartz RS, Shuman WP, Bradbury VL, Cain KC, Fellingham GW, Beard JC, Kahn SE, Stratton JR, Cerqueira MD, Abrass IB. Body fat distribution in healthy young and older men. J Gerontol. 1990 Nov;45(6):M181-5. doi: 10.1093/geronj/45.6.m181.

    PubMed 2229940
  • Porter MM, Vandervoort AA, Lexell J. Aging of human muscle: structure, function and adaptability. Scand J Med Sci Sports. 1995 Jun;5(3):129-42. doi: 10.1111/j.1600-0838.1995.tb00026.x.

    PubMed 7552755
  • Jolles J, Verhey FR, Riedel WJ, Houx PJ. Cognitive impairment in elderly people. Predisposing factors and implications for experimental drug studies. Drugs Aging. 1995 Dec;7(6):459-79. doi: 10.2165/00002512-199507060-00006.

    PubMed 8601053
  • Davidson JM, Chen JJ, Crapo L, Gray GD, Greenleaf WJ, Catania JA. Hormonal changes and sexual function in aging men. J Clin Endocrinol Metab. 1983 Jul;57(1):71-7. doi: 10.1210/jcem-57-1-71.

    PubMed 6602143
  • Vitiello MV. Sleep disorders and aging: understanding the causes. J Gerontol A Biol Sci Med Sci. 1997 Jul;52(4):M189-91. doi: 10.1093/gerona/52a.4.m189. No abstract available.

    PubMed 9224429
  • Myers BL, Badia P. Changes in circadian rhythms and sleep quality with aging: mechanisms and interventions. Neurosci Biobehav Rev. 1995 Winter;19(4):553-71. doi: 10.1016/0149-7634(95)00018-6.

    PubMed 8684716

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing LowT, Resistance Training and HighT in people with Healthy, run by University of Colorado, Denver 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 2 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 2 Sep 2020. 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. Some participants in this study may receive a placebo. 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 20 Jan 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?

Physical Function (CS-PFP Total Score) (time frame: Baseline and 12 months). 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 NCT00112151, which also lists 6 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 2 Sep 2020.

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Clinical Trial NCT00112151 | AzTrials