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OsteoporosisNCT01309399

Early Effects of Parathyroid Hormone (PTH) on the Proximal Femur

A study testing Teriparatide in people with Osteoporosis, run by Health Research, Inc. 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

Teriparatide is a potent osteoporosis medication that helps prevent fractures, however, the investigators know little about its effect on the hip. The investigators will evaluate hip bone samples from patients treated with teriparatide before undergoing hip replacement. Read more about this study

Who is it for?
Ages 50 to 90 yearsHealthy volunteers can take part
Conditions the study is for
Osteoporosis
What is being tested?
Teriparatide
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
40 participants
Where
1 siteUnited States
Study dates
Aug 2010to Aug 2015
Phase
Interventional
Are there results?
None posted in the registry

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 50 to 90 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Age 50-90 years old.
  • Male or postmenopausal (women who have had no menses for one year)
  • Degenerative joint disease of the hip (osteoarthritis) requiring total hip arthroplasty, based on radiologic and clinical impression.

Who cannot join

  • Any contraindications to use of TPTD.
  • Age younger than 50, greater than 90 years old.
  • Metabolic bone disease other than osteoporosis.
  • History of hyperparathyroidism without surgical correction.
  • Unexplained hypercalcemia.
  • Paget's disease (or unexplained elevated bone alkaline phosphatase level).
Show all 9Show fewer
  • History of any metastatic cancer or osteosarcoma.
  • Prior radiation treatment.
  • Secondary hyperparathyroidism due to vitamin D deficiency or renal disease. Active hyperthyroidism or excessive thyroid hormone replacement (with TSH below normal range).

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Helen Hayes Hospital

    West Haverstraw, New York, 10993

Other trials in United States

About this study

Official title: Early Effects of PTH on the Proximal Femur

Teriparatide is a potent osteoporosis medication that helps prevent fractures, however, the investigators know little about its effect on the hip. The investigators will evaluate hip bone samples from patients treated with teriparatide before undergoing hip replacement. The information will help us understand how teriparatide might help reduce hip fracture risk.

Read the detailed description

Osteoporosis with consequent hip fractures causes substantial disability, morbidity and mortality. Teriparatide (TPTD), the aminoterminal fragment of parathyroid hormone (PTH), increases bone mineral density (BMD) and bone strength and reduces fracture incidence throughout the skeleton, but data confirming specific efficacy against hip fracture will never be available. Histomorphometric studies after 18-36 months of TPTD treatment show improvements in bone volume and structure in the iliac crest. Both biochemical and histomorphometric investigations of the iliac crest at very early time points (within 4-6 weeks of administration) show that bone formation is dramatically stimulated. Apart from the beneficial effect of TPTD on bone density and bone strength by finite element analysis at the hip, nothing is known about the mechanism of the effect of TPTD on the proximal femur. While BMD changes are smaller and slower in the hip in response to TPTD than in the spine, it is possible that stimulation of bone formation on the periosteal bone surface could result in expansion of bone size, obscuring the increase in non-invasively measured BMD. The current study will provide evidence for or against this possible TPTD-induced periosteal expansion. From a clinical perspective, it is unclear whether TPTD would be preferable to other osteoporosis medications, such as zoledronic acid, in patients at high risk for hip fracture. TPTD induced bone formation in the femur would be expected to improve bone strength and would provide a mechanistic basis for the use of TPTD in patients at high risk of hip fracture. The proposed project is the only practical and ethical way to obtain information on the effects of TPTD on bone formation in the proximal femur in humans. In patients undergoing total hip arthroplasty (THA) for degenerative joint disease, the hip samples of greatest interest are extracted routinely during the procedure. At the same time, an iliac crest biopsy can be taken with minimal added time and risk. The protocol has the following Specific Aims:

In patients undergoing elective, noncemented total hip arthroplasty (THA): 1. To determine the early effects of 1-34hPTH (teriparatide; TPTD 20 mcg) vs placebo, administered subcutaneously daily for 6 weeks, on histomorphometric indices of bone formation in cancellous and cortical bone of the proximal femur (femoral neck and intertrochanteric bone) and iliac crest. 2. To evaluate the association between changes in biochemical indices of bone turnover and histomorphometric indices of bone formation in the proximal femur (femoral neck and intertrochanteric bone) and iliac crest over 6 weeks of treatment with TPTD vs. placebo. 3. To determine if circulating osteoblast precursor cells increase over 6 weeks of treatment with TPTD vs Placebo and to compare the change in size of this osteoblast precursor pool with the change in a biochemical marker of bone formation and indices of bone formation in the femur and iliac crest.

Conditions
Osteoporosis
Being tested
Teriparatide, placebo
Keywords
bone formation rate, total hip arthroplasty
Medical subject headings
Osteoporosis

What participants receive

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

  • TeriparatideDrug

    Also called forteo

    six weeks of teriparatide

  • placeboOther

    placebo

Study groups in NCT01309399
Study groupRoleWhat they receive
teriparatideActive comparatorsix weeks of teriparatide
Receives: Drug: Teriparatide
placeboPlacebo comparatorplacebo identical in appearance to teriparatide
Receives: Other: placebo

What is being measured

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

  1. Bone formation rate

    At the time of surgery, the femoral neck and a small piece of bone will be obtained and measured for indices of bone formation in the femur and iliac crest in both placebo or teriparatide groups.

    Measured: 6 weeks

Secondary outcomes (1)
  1. Blood samples will be analyzed for indices of bone formation (serum P1NP) and resorption (serum CTX) after treatment with placebo or teriparatide Biochemical markers of bone

    Blood samples will be analyzed for indices of bone formation (serum P1NP) and resorption (serum CTX) after treatment with placebo or teriparatide

    Measured: six weeks

Timeline

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

  1. First posted7 Mar 2011 (estimated)
  2. Study startAug 2010
  3. Primary completionNov 2014
  4. Study completionAug 2015

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
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01309399
Sponsor's protocol ID
09-09
Other IDs
R01AR059204-01
Status last verified
Nov 2016
First submitted
4 Mar 2011
Last updated
23 Nov 2016
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Teriparatide in people with Osteoporosis, run by Health Research, Inc. 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 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 23 Nov 2016. 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Bone formation rate (time frame: 6 weeks). 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 23 Nov 2016.

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