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OsteopeniaPhase 1NCT00577850

Pharmacokinetics of a Single 14C-labeled Dose of Risedronate or Alendronate Followed by Once-a-week Unlabeled Oral Dose

A Phase 1 study testing risedronate and alendronate in people with Osteopenia and Osteoporosis, run by Warner Chilcott at 2 sites 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 primary objective of this study is to compare the urinary excretion of 14C-labeled risedronate and alendronate over 28 days. Read more about this study

Who is it for?
Ages 40 to 75 years, women only
Conditions the study is for
Osteopenia, Osteoporosis
What is being tested?
risedronate and alendronate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
32 participants
Where
2 sitesUnited States
Study dates
Nov 2002to Feb 2004
Phase
Phase 1
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 40 to 75 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • have medical history documentation verifying postmenopausal status of at least 2 years (natural or surgical). If not documented, confirmation will be required using estradiol < 20 pg/mL and follicle stimulating hormone (FSH) > 40 IU/mL;
  • have osteopenia or osteoporosis (< 1.002 g/cm2 Lunar or < 0.882 g/cm2 Hologic) as determined by DXA of the lumbar spine (AP or PA view, L1-L4). This corresponds to a T-score of approximately < -1.5.

Who cannot join

  • any clinically significant out-of-range laboratory values and vital signs,
  • a clinically significant cardiovascular, hepatic, renal, or parathyroid disease, in the opinion of the Investigator
  • a known hypersensitivity to bisphosphonates

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Research Facility

    Gainesville, Florida

  • Research Site

    New Orleans, Louisiana

Other trials in United States

About this study

Official title: Study to Determine the Pharmacokinetics of a Single 14C-labeled Intravenous Dose of Risedronate or Alendronate Followed by Once-a-week Unlabeled Oral Dose to Postmenopausal Women With Osteopenia or Osteoporosis

The primary objective of this study is to compare the urinary excretion of 14C-labeled risedronate and alendronate over 28 days.

Being tested
risedronate, alendronate
Medical subject headings
Bone Diseases, Metabolic, Osteoporosis

What participants receive

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

  • risedronateDrug

    0.23 mg 14C-labeled risedronate, followed 7 days later with oral 35 mg risedronate once a week for 52 weeks followed by another 14C-labeled risedronate followed weekly by 35 mg risedronate for 3 weeks

  • alendronateDrug

    0.45 mg 14C-labeled alendronate, followed 7 days later with oral 705 mg alendronate once a week for 52 weeks followed by another 14C-labeled alendronate followed weekly by 70 mg alendronate for 3 weeks

Study groups in NCT00577850
Study groupRoleWhat they receive
1Experimental0.23 mg 14C-labeled risedronate, followed 7 days later with oral 35 mg risedronate once a week for 52 weeks
Receives: Drug: risedronate
2Active comparator0.45 mg 14C-labeled alendronate, followed 7 days later with oral 70 mg of alendronate once a week for 52 weeks
Receives: Drug: alendronate

What is being measured

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

  1. compare the urinary excretion of 14C-labeled risedronate and alendronate over 28 days.

    Measured: 28 days

Secondary outcomes (1)
  1. to compare urinary excretion and serum concentration-time profiles of 14C-labeled risedronate and alendronate over 52 weeks.

    Measured: 52 weeks

Timeline

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

  1. First posted20 Dec 2007 (estimated)
  2. Study startNov 2002
  3. Primary completionFeb 2004
  4. Study completionFeb 2004

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 1
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00577850
Sponsor's protocol ID
2002095
Status last verified
Apr 2013
First submitted
19 Dec 2007
Last updated
17 Apr 2013
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing risedronate and alendronate in people with Osteopenia and Osteoporosis, run by Warner Chilcott at 2 sites 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 3 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 17 Apr 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites 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.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

compare the urinary excretion of 14C-labeled risedronate and alendronate over 28 days. (time frame: 28 days). 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 17 Apr 2013.

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