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ObesityPhase 4NCT00315146

Optimizing Body Composition for Function in Older Adults

A Phase 4 study testing Pioglitazone, Resistance exercise training to maximize muscle power and Hypocaloric diet in people with Obesity and Overweight With Indications for Weight Loss, run by Wake Forest University Health Sciences 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 pilot study is to compare two strategies intended to improve the health of overweight older adults by improving body composition. One strategy, resistance training, is designed to preserve skeletal muscle mass. Read more about this study

Who is it for?
Ages 65 to 79 yearsHealthy volunteers can take part
What is being tested?
Pioglitazone, Resistance exercise training to maximize muscle power and Hypocaloric diet
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
88 participants
Where
1 siteUnited States
Study dates
Apr 2006to Apr 2007
Phase
Phase 4
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 65 to 79 years
  • All sexes
  • Healthy volunteers accepted
  • Older adult

Who may be able to join

  • Weight Stable, Indication for weight loss per NIH guidelines, Performance on the short physical performance battery score 3-10

Who cannot join

  • Diabetes, weight > 136 kg, Medical condition that limits exercise participation, Congestive heart failure, abnormal kidney function, higher ALT than normal, currently involved in a weight loss or exercise program, current smoking, alcohol or drug abuse, taking anti-inflammatory steroids, taking protein supplements, taking PPAR-gamma agonist, edema, anemia

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Sticht Center on Aging, Wake Forest University Baptist Medical Center

    Winston-Salem, North Carolina, 27157

Other trials in United States

About this study

Official title: Optimizing Body Composition for Function in Older Adults (OPTIMA) - A Pepper Pilot Study

The purpose of this pilot study is to compare two strategies intended to improve the health of overweight older adults by improving body composition. One strategy, resistance training, is designed to preserve skeletal muscle mass. The other strategy, the use of a PPAR-γ agonist, is designed to enhance the loss of fat from visceral and skeletal depots. These strategies will be used in conjunction with a hypocaloric diet and will be compared to a hypocaloric diet alone to determine if either of these strategies are superior in reducing visceral fat and preserving muscle mass.

Read the detailed description

In this pilot we propose to recruit 88 older (65 - 79 yrs) men (n=48) and women (n=40) at risk for disability and with indications for weight loss according to NIH guidelines. All will be enrolled in a dietary intervention designed to generate a caloric deficit of 500 kcal/day for a 4 month period. All will receive supplemental vitamin D and calcium. These participants will be randomized into one of 4 groups:

Group 1 - Hypocaloric diet (and placebo) Group 2 - Hypocaloric diet and resistance training designed to maximize muscular power (and placebo) Group 3 - Hypocaloric diet and a PPAR- γ agonist (pioglitazone/Actos™) Group 4 - Hypocaloric diet and resistance training and pioglitazone/Actos™

The specific aims of the pilot are:

  1. In both men and women, to determine whether randomization to resistance exercise is associated with an increased retention of appendicular non-bone lean mass compared to those not undergoing power training.
  2. In both men and women, to determine whether randomization to the pioglitazone group is associated with an increased loss of visceral adiposity relative to randomization to the non-pioglitazone group.
  3. Assess the feasibility of the recruitment, assessment and intervention strategies
  4. To estimate adherence to the weight loss, exercise training, and drug interventions;
  5. In this population, to determine measurement characteristics of the functional outcomes that will be considered as primary end-points of the larger study.
  6. To obtain pilot data on a subset of participants to determine the feasibility, acceptability and measurement characteristics of muscle samples (biopsies) to quantify intramyocellular lipid in this study population.
Being tested
Pioglitazone, Resistance exercise training to maximize muscle power, Hypocaloric diet, Placebo
Keywords
Body Composition, Sarcopenia, Weight loss trials, Intervention studies, Elderly
Medical subject headings
Obesity, Sarcopenia

What participants receive

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

  • PioglitazoneDrug

  • Resistance exercise training to maximize muscle powerBehavioural

  • Hypocaloric dietBehavioural

  • PlaceboDrug

Study groups in NCT00315146
Study groupRoleWhat they receive
Hypocaloric diet (and placebo)Placebo comparatorNot described
Receives: Behavioral: Hypocaloric diet; Drug: Placebo
Hypocaloric diet, resist. training to maximize power, placeboActive comparatorNot described
Receives: Behavioral: Resistance exercise training to maximize muscle power; Behavioral: Hypocaloric diet; Drug: Placebo
Hypocaloric diet and a PPAR- γ agonist (pioglitazone/Actos™)Active comparatorNot described
Receives: Drug: Pioglitazone; Behavioral: Hypocaloric diet
Hypocaloric diet,resistance training, pioglitazone/Actos™Active comparatorNot described
Receives: Drug: Pioglitazone; Behavioral: Resistance exercise training to maximize muscle power; Behavioral: Hypocaloric diet

What is being measured

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

  1. Appendicular Non-bone Lean Mass

    Change in Appendicular Non-bone Lean Mass

    Measured: Baseline visit (pre intervention) and 4month follow up (post intervention)

Secondary outcomes (1)
  1. Lean Body Mass

    Measured: Baseline visit (pre intervention) and 4month follow up (post intervention)

Timeline

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

  1. First posted17 Apr 2006 (estimated)
  2. Study startApr 2006
  3. Primary completionApr 2007
  4. Study completionApr 2007

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Factorial
Masking
Single blind
Who is masked
Participant
Enrolment
88 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00315146
Sponsor's protocol ID
BG06-051
Other IDs
P30AG021332
Status last verified
Jul 2018
First submitted
13 Apr 2006
Last updated
28 Aug 2018
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Pioglitazone, Resistance exercise training to maximize muscle power and Hypocaloric diet in people with Obesity and Overweight With Indications for Weight Loss, run by Wake Forest University Health Sciences 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 1 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 28 Aug 2018. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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 19 Dec 2014). 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?

Appendicular Non-bone Lean Mass (time frame: Baseline visit (pre intervention) and 4month follow up (post intervention)). 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 28 Aug 2018.

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Clinical Trial NCT00315146 | AzTrials