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HyperparathyroidismPhase 3NCT00527267

Safety and Efficacy Study of AMG 073 in Hemodialysis Subjects

A Phase 3 study testing AMG 073 in people with Hyperparathyroidism, 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

Subjects on Hemodialysis will be randomized to AMG 073 or placebo. The screening period is a maximum of 30 days followed by a 26-week treatment period. Lab assessments will be completed throughout the study along with PRO assessments. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hyperparathyroidism
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
320 participants
Where
No sites listed yet
Study dates
Feb 2002to Apr 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

Who may be able to join

  • Men and Women greater than or equal to 18 years of age
  • Using effective contraceptive measures
  • Mean iPTH during screening of greater than or equal to 300 pg/mL
  • Mean calcium during screening of greater than or equal to 8.4 mg/dL
  • Stable on hemodialysis

Who cannot join

  • Unstable medical conditions
  • Parathyroidectomy within 3 months
  • Change in Vitamin D therapy
  • Receiving antidepressants
  • Experienced an MI within 3 months
  • Inability to swallow tablets
  • Previously received AMG 073

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

Subjects on Hemodialysis will be randomized to AMG 073 or placebo. The screening period is a maximum of 30 days followed by a 26-week treatment period. Lab assessments will be completed throughout the study along with PRO assessments.

Being tested
Placebo, AMG 073
Medical subject headings
Hyperparathyroidism

What participants receive

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

  • PlaceboDrug

    30 mg placebo once daily orally 60 mg placebo once daily orally 90 mg placebo once daily orally 120 mg placebo once daily orally 180 mg placebo once daily orally

  • AMG 073Drug

    30 mg AMG 073 once daily 60 mg AMG 073 once daily 90 mg AMG 073 once daily 120 mg AMG 073 once daily 180 mg AMG 073 once daily

Study groups in NCT00527267
Study groupRoleWhat they receive
AMG 073ExperimentalAMG 073
Receives: Drug: AMG 073
PlaceboPlacebo comparatorPlacebo
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 study

Secondary outcomes (4)
  1. To evaluate the efficacy of AMG 073 compared with placebo by determining: the proportion of subjects with a reduction from baseline in iPTH of >= during the efficacy assessment phase

    Measured: Efficacy Assessment Phase - last 14 weeks of study

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

    Measured: Efficacy Assessment Phase - last 14 weeks of study

  3. 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 study

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

    Measured: Entire study - 26 weeks

Timeline

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

  1. First posted10 Sep 2007 (estimated)
  2. Study startFeb 2002
  3. Primary completionApr 2003
  4. Study completionApr 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
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
320 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00527267
Sponsor's protocol ID
20000183
Status last verified
Jan 2009
First submitted
6 Sep 2007
Last updated
26 Jan 2009
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing AMG 073 in people with Hyperparathyroidism, 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?

The sponsor lists 5 inclusion and 7 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 26 Jan 2009. 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 study). 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 26 Jan 2009.

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