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Secondary HyperparathyroidismPhase 3NCT00037635

A Study of an Investigational Medication for the Treatment of Secondary Hyperparathyroidism in Dialysis Patients

A Phase 3 study testing AMG 073 in people with Secondary Hyperparathyroidism and End Stage Renal Disease, run by Amgen.

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

This 6 month long study will assess an investigational medication for patients on dialysis with secondary hyperparathyroidism. The study will look at the effects on parathyroid hormone, calcium and phosphorus levels. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
AMG 073
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
400 participants
Where
No sites listed yet
Study dates
Dec 2001to Mar 2003
Phase
Phase 3
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult
  • Patients must be receiving hemodialysis; * Have elevated parathyroid hormone levels; * Not be pregnant or nursing; and * Not have had a heart attack in the last 3 months.

About this study

Official title: A Phase 3 Study to Assess the Efficacy and Safety of an Oral Calcimimetic Agent (AMG 073) in Secondary Hyperparathyroidism of End Stage Renal Disease Treated With Hemodialysis

This 6 month long study will assess an investigational medication for patients on dialysis with secondary hyperparathyroidism. The study will look at the effects on parathyroid hormone, calcium and phosphorus levels.

Being tested
AMG 073, Placebo
Medical subject headings
Hyperparathyroidism, Secondary, Kidney Failure, Chronic

What participants receive

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

  • AMG 073Drug

    30 mg QD orally 60 mg QD orally 90 mg QD orally 120 mg QD orally 180 mg QD orally

  • PlaceboDrug

    30 mg QD orally 60 mg QD orally 90 mg QD orally 120 mg QD orally 180 mg QD orally

Study groups in NCT00037635
Study groupRoleWhat they receive
AMG 073ExperimentalNot described
Receives: Drug: AMG 073
placeboPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

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

  1. To evaluate the efficacy of AMG 073 compared with placebo by determining the proportion of subjects with a mean intact parathyroid hormone (iPTH) value <= 250 pg/mL (26.5 pmol/L) during the efficacy assessment phase.

    Measured: efficacy assessment phase (last 14 weeks of treatment)

Secondary outcomes (3)
  1. To evaluate the efficacy of AMG 073 compared with placebo by determining: percentage change from baseline in mean calcium x phosphorus product (Ca x P) during the efficacy assessment phase

    Measured: efficacy assessment phase (last 14 weeks of treatment)

  2. To evaluate the efficacy of AMG 073 compared with placebo by determining: changes in self-reported cognitive function from baseline to the end of the efficacy assessment phase

    Measured: efficacy assessment phase (last 14 weeks of treatment)

  3. To evaluate the safety of AMG 073 compared with placebo.

    Measured: entire study

Timeline

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

  1. First posted20 May 2002 (estimated)
  2. Study startDec 2001
  3. Primary completionMar 2003
  4. Study completionMar 2003

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
400 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00037635
Sponsor's protocol ID
20000172
Status last verified
May 2013
First submitted
17 May 2002
Last updated
8 May 2013
Results posted
No

Publications

  • Martin KJ, Juppner H, Sherrard DJ, Goodman WG, Kaplan MR, Nassar G, Campbell P, Curzi M, Charytan C, McCary LC, Guo MD, Turner SA, Bushinsky DA. First- and second-generation immunometric PTH assays during treatment of hyperparathyroidism with cinacalcet HCl. Kidney Int. 2005 Sep;68(3):1236-43. doi: 10.1111/j.1523-1755.2005.00517.x.

    PubMed 16105056

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing AMG 073 in people with Secondary Hyperparathyroidism and End Stage Renal Disease, run by Amgen.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

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 8 May 2013. Status can change between updates, so confirm with the study contact before making plans.

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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

To evaluate the efficacy of AMG 073 compared with placebo by determining the proportion of subjects with a mean intact parathyroid hormone (iPTH) value <= 250 pg/mL (26.5 pmol/L) during the efficacy assessment phase. (time frame: efficacy assessment phase (last 14 weeks of treatment)). 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 NCT00037635, which also lists 1 linked publication.

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 8 May 2013.

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