CClinicalTrials.gg
CompletedNCT00609362Updated Apr 27, 2011Results posted

The Effect of Glitazone Treatment on Bone Marrow and Bone Marrow Cells

A Phase 2 interventional study of Rosiglitazone and Placebo pill in Change in Bone Mineral Density and Change in Bone Marrow Fat Content, sponsored by University of Aarhus. Completed at 1 site in Denmark. Open to female participants aged 60 Years to 75 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2011-04-27.

Sponsored by University of Aarhus · Phase 2, Interventional, and Basic science

Phase
Phase 2
Study type
Interventional
Enrollment
57
Allocation
Randomized
Ages
60 Years to 75 Years
Sex
Female
01

Study summary

Osteoporosis is a generalised bone disease leading to an increased risk of fractures. The disease is caused partly by environmental and partly by genetic factors. It is well known that the fat content of the bone marrow is increased in osteoporotic patients. Animal studies suggest that stimulation of bone marrow stem cells through the molecule PPARgamma with the drug rosiglitazone converts the stem cells to fat cells instead of bone cells thereby decreasing bone strength. In a single study healthy volunteers were treated with rosiglitazone for 14 weeks and had a decrease in bone mineral density.

In the present study we wish to investigate the effect of this treatment on bone and fat tissue. 25 women above the age of 60 will be treated with rosiglitazone 8 mg/day for 14 weeks and compared with 25 women receiving placebo.

The effect will be evaluated as follows:

  1. The effect on bone marrow density will be examined by a bone scan prior to and after treatment and again after 6 and 9 months.
  2. The effect on bone turnover will be measured in blood- and urine samples at the same times.
  3. The effect on fat distribution will be evaluated by an MRI scan after treatment.
  4. The effect on bone marrow cells will be investigated bone marrow sampling immediately after treatment
  5. The direct effect on fat will be examined by a biopsy immediately after treatment The study hypothesis is that rosiglitazone treatment decreases bone mineral density and increases bone marrow fat content. The causal molecular mechanisms will be investigated from the bone marrow and fat samples
02

Conditions studied

  • Change in Bone Mineral Density
  • Change in Bone Marrow Fat Content

Keywords

  • BMD
  • Rosiglitazone
  • Bone marrow fat
03

In context

Lead sponsor

University of Aarhus is the lead sponsor of 1,274 studies on the registry; 183 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
60 Years to 75 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Postmenopausal women age 60-75 with no rosiglitazone allergy

Exclusion criteria

Exclusion Criteria:

  • Osteoporosis
  • Diabetes
  • Hyperthyroidism, untreated hypothyroidism, hyperparathyroidism
  • Treatment with bone active drugs
  • Low impact fracture
  • Heart disease
  • Kidney failure
  • Liver failure
  • Anaemia
  • Ineligibility for MRI-scan
  • Cancer within last 5 years
05

Study design

Phase
Phase 2
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
57 participants (actual)

Study arms

  • Active comparator
    Rosiglitazone

    25 women age 60 to 75 years receiving rosiglitazone 8 mg/day

    Drug: Rosiglitazone

  • Placebo comparator
    Placebo

    25 women 60 to 75 years of age receiving placebo once a day for 14 weeks

    Drug: Placebo pill

Interventions

  • DrugRosiglitazone

    one tablet of rosiglitazone 8 milligrams per day for 14 weeks

    Also known as: Avandia

  • DrugPlacebo pill

    One encapsulated placebo pill a day for 14 weeks

06

What researchers measure

Primary outcomes

  1. Difference in Percent Change in Bone Mineral Density (BMD) From Baseline to 14 Weeks Between the Rosiglitazone Group and the Placebo Group

    Difference in percent change in bone mineral density (BMD) from baseline to 14 weeks between the rosiglitazone group and the placebo group. BMD was assesed using dual x-ray absorptiometry (DXA)

    Time frame: BMD measured at baseline and after 14 weeks of treatment

Secondary outcomes

  1. Difference in Percent Change in Bone Marrow Fat (Given by a Lipid to Water Ratio) in the Spine.

    Bone marrow fat was measured using MRI spectroscopy providing a measure of bone marrow fat as a ratio to bone marrow water, the lipid-water ratio (LWR)

    Time frame: Measured at baseline and after 14 weeks of treatment

  2. Difference in Percent Change in Level of C-terminal Telopeptide (CTx) Between the Rosiglitazone and Placebo Groups

    C-terminal telopeptide is a marker of bone resorption. Its levels are measure in plasma using a chemiluminometric method (ECLIA).

    Time frame: At baseline and after 14 weeks of treatment

  3. Change in Gene Expression in Bone Marrow and Fat Cells

    Time frame: Before and after treatment

07

Results

Posted Apr 27, 2011

Participant flow

Recruitment commenced january 2008 and ended february 2009. Participants were recruited by ads in local papers and called our osteoporosis clinic. 179 called and after a course description 150 were sent information. After having read that 74 paid a visit to the clinic.

Participant flow — Overall Study
MilestoneRosiglitazonePlacebo
Started2928
Completed2627
Not completed31
Withdrew: Withdrawal by subject21
Withdrew: Adverse event10

Outcome measures

PrimaryDifference in Percent Change in Bone Mineral Density (BMD) From Baseline to 14 Weeks Between the Rosiglitazone Group and the Placebo Group

Difference in percent change in bone mineral density (BMD) from baseline to 14 weeks between the rosiglitazone group and the placebo group. BMD was assesed using dual x-ray absorptiometry (DXA)

Time frame:
BMD measured at baseline and after 14 weeks of treatment
Reported as:
Mean · Percent change from baseline
Difference in Percent Change in Bone Mineral Density (BMD) From Baseline to 14 Weeks Between the Rosiglitazone Group and the Placebo Group
Percent change from baselineRosiglitazonePlacebo
Difference in Percent Change in Bone Mineral Density (BMD) From Baseline to 14 Weeks Between the Rosiglitazone Group and the Placebo Group-1.3 ± 3.10.3 ± 2.9
Statistical analysis
  • Rosiglitazone vs Placebo · t-test, 2 sided · p = 0.055 (P-value is un-adjusted. A priori threshold for significance: 0.05)
SecondaryDifference in Percent Change in Bone Marrow Fat (Given by a Lipid to Water Ratio) in the Spine.

Bone marrow fat was measured using MRI spectroscopy providing a measure of bone marrow fat as a ratio to bone marrow water, the lipid-water ratio (LWR)

Time frame:
Measured at baseline and after 14 weeks of treatment
Reported as:
Mean · Percent change in LWR
Difference in Percent Change in Bone Marrow Fat (Given by a Lipid to Water Ratio) in the Spine.
Percent change in LWRRosiglitazonePlacebo
Difference in Percent Change in Bone Marrow Fat (Given by a Lipid to Water Ratio) in the Spine.-13.5 ± 5.56.8 ± 24.4
Statistical analysis
  • Rosiglitazone vs Placebo · t-test, 2 sided · p = 0.056
SecondaryDifference in Percent Change in Level of C-terminal Telopeptide (CTx) Between the Rosiglitazone and Placebo Groups

C-terminal telopeptide is a marker of bone resorption. Its levels are measure in plasma using a chemiluminometric method (ECLIA).

Time frame:
At baseline and after 14 weeks of treatment
Reported as:
Mean · Percent change from baseline
Difference in Percent Change in Level of C-terminal Telopeptide (CTx) Between the Rosiglitazone and Placebo Groups
Percent change from baselineRosiglitazonePlacebo
Difference in Percent Change in Level of C-terminal Telopeptide (CTx) Between the Rosiglitazone and Placebo Groups20.4 ± 38.6-7.1 ± 24.4
Statistical analysis
  • Rosiglitazone vs Placebo · t-test, 2 sided · p = 0.003
SecondaryChange in Gene Expression in Bone Marrow and Fat Cells
Time frame:
Before and after treatment

Results for this outcome have not been posted.

Adverse events

Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Rosiglitazone—0/26 (0%)19/26 (73.1%)
Placebo—0/27 (0%)15/27 (55.6%)
Most frequent other events
Most frequent other events
EventRosiglitazonePlacebo
HeadacheNervous system disorders6/264/27
EdemaCardiac disorders6/262/27
ColdRespiratory, thoracic and mediastinal disorders4/262/27
HypercholesterolemiaMetabolism and nutrition disorders4/262/27
TendinitisMusculoskeletal and connective tissue disorders2/261/27
DiarrheaGastrointestinal disorders1/262/27
FallMusculoskeletal and connective tissue disorders0/262/27

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)RosiglitazonePlaceboTotal
<=18 years000
Between 18 and 65 years151631
>=65 years141226
Age Continuous
Age Continuous(years)RosiglitazonePlaceboTotal
Mean65.1 ± 3.565.3 ± 4.365.2 ± 3.8
Sex: Female, Male
Sex: Female, Male(Participants)RosiglitazonePlaceboTotal
Female292857
Male000
Region of Enrollment
Region of Enrollment(participants)RosiglitazonePlaceboTotal
Denmark292857
08

Study locations

1 site
  • Aarhus University Hospital
    Aarhus, 8000 C, Denmark
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 27, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00609362
Lead sponsor
University of Aarhus
First posted
Feb 7, 2008
Start date
Jan 2008
Primary completion
Nov 2009
Completion
Nov 2009
Results posted
Apr 27, 2011
Last update
Apr 27, 2011

Study contacts

Torben Harsløf, Dr.
principal investigator · Aarhus University Hospital

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2011. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion