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Hyperparathyroidism, PrimaryPhase 3NCT00975221

Efficacy and Safety Study of Cinacalcet for the Treatment of Hypercalcemia in Patients With Primary Hyperparathyroidism Unable to Undergo Parathyroidectomy

A Phase 3 study testing Cinacalcet in people with Hyperparathyroidism, Primary and Hypercalcemia, run by Amgen at 47 sites in 7 countries.

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 study is designed to demonstrate the efficacy and to assess the safety of cinacalcet for the reduction of hypercalcemia in patients with primary hyperparathyroidism for whom parathyroidectomy is indicated on the basis of an elevated corrected total serum calcium, but who are unable to undergo parathyroidectomy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hyperparathyroidism, Primary, Hypercalcemia
What is being tested?
Cinacalcet
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
67 participants
Where
47 sitesin 7 countries
Study dates
10 Mar 2010to 21 Dec 2012
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

  • age ≥ 18 years
  • diagnosis of primary hyperparathyroidism (HPT)
  • subjects must have the following laboratory values:
  • local/historical laboratory result showing a corrected total serum calcium > 1 mg/dL (0.25 mmol/L) above the upper limit of normal and
  • ≤ 12.5 mg/dL (3.12 mmol/L) within the past 12 months, and
  • local/historical laboratory result showing a plasma parathyroid horone (PTH) > 75% of upper limit of normal within the past 12 months, and
Show all 16Show fewer
  • one central laboratory draw at the screen visit showing a corrected total serum calcium > 11.3 mg/dL (2.82 mmol/L) and ≤ 12.5 mg/dL (3.12 mmol/L), and
  • one central laboratory draw at the screen visit showing a plasma PTH > 55 pg/mL (5.8 pmol/L) OR
  • two central laboratory draws performed during the screening period at least 7 days apart, showing a
  • corrected total serum calcium > 11.3 mg/dL (2.82 mmol/L) and ≤ 12.5 mg/dL (3.12 mmol/L), and
  • plasma PTH > 55 pg/mL (5.8 pmol/L)
  • not able to undergo parathyroidectomy for ≥ 1 of the following reasons:
  • failed parathyroidectomy
  • comorbid conditions contraindicating parathyroidectomy
  • parathyroidectomy not considered appropriate or is not feasible by primary physician and subject
  • before any study-specific procedure is performed, the appropriate written informed consent must be obtained

Who cannot join

  • symptoms attributable to hypercalcemia, requiring immediate medical intervention, as judged by the investigator (including acute kidney stone, nausea and vomiting requiring intravenous hydration, confusion, lethargy, stupor, or coma)
  • unstable medical condition, defined as having been hospitalized within 30 days before the date of informed consent, or otherwise unstable in the judgment of the investigator
  • administration of drugs that increase serum calcium concentration, including but not limited to thiazide diuretics or lithium
  • initiated bisphosphonate therapy or changed bisphosphonate dose within 12 weeks before the date of informed consent
  • current administration of drugs for ventricular arrhythmia
  • unable to provide informed consent, or is at risk for poor compliance with study procedures
Show all 13Show fewer
  • currently enrolled in another investigational device or drug study(s), or completed such study within 30 days before the date of informed consent
  • known hypersensitivity to or unable to tolerate cinacalcet
  • received treatment with cinacalcet within 60 days before the date of informed consent
  • history of seizures or an adjustment of anti-seizure medication within 12 weeks before the date of informed consent
  • family history or diagnosis a genetic syndrome, such as familial benign hypocalciuric hypercalcemia (FBHH) or multiple endocrine neoplasia type 1 (MEN1) and type 2 (MEN2), where primary HPT is one of the clinical manifestations of familial benign hypocalciuric hypercalcemia (FBHH)
  • refused to use highly effective contraceptive measures (as determined by the investigator) throughout the study
  • pregnant or breastfeeding

Trial locations and contacts

47 sites in 7 countries.

47 sites in 7 countries

United States22 sites
  • Research Site

    Atlanta, Georgia, 30322

  • Research Site

    Aurora, Colorado, 80045

  • Research Site

    Aventura, Florida, 33180

  • Research Site

    Clearwater, Florida, 33756

  • Research Site

    Columbus, Ohio, 43210-1296

  • Research Site

    Detroit, Michigan, 48236

  • Research Site

    Indianapolis, Indiana, 46202

  • Research Site

    Jacksonville, Florida, 32204

  • Research Site

    Kenner, Louisiana, 70065

  • Research Site

    Lake Forest, California, 92630

  • Research Site

    Lancaster, California, 93534

  • Research Site

    Los Gatos, California, 95032

  • Research Site

    Miami, Florida, 33145

  • Research Site

    Mission Viejo, California, 92691

  • Research Site

    Morehead City, North Carolina, 28557

  • Research Site

    New Orleans, Louisiana, 70121

  • Research Site

    New York, New York, 10032

  • Research Site

    Orange, California, 92869

  • Research Site

    Pembroke Pines, Florida, 33028

  • Research Site

    San Diego, California, 92124

  • Research Site

    Washington D.C., District of Columbia, 20010

  • Research Site

    Weston, Florida, 33331

Other trials in United States

Russia6 sites
  • Research Site

    Moscow, 117036

  • Research Site

    Moscow, 119034

  • Research Site

    Moscow, 129110

  • Research Site

    Rostov-na-Dony, 344022

  • Research Site

    Saint Petersburg, 197341

  • Research Site

    Yaroslavl, 150003

Other trials in Russia

Australia5 sites
  • Research Site

    Footscray, Victoria, 3011

  • Research Site

    Geelong, Victoria, 3220

  • Research Site

    Nedlands, Western Australia, 6009

  • Research Site

    Randwick, New South Wales, 2031

  • Research Site

    St Leonards, New South Wales, 2065

Other trials in Australia

Canada4 sites
  • Research Site

    Calgary, Alberta, T2N 4Z6

  • Research Site

    London, Ontario, N6A 4V2

  • Research Site

    Oakville, Ontario, L6J 1X8

  • Research Site

    Toronto, Ontario, M5C 2T2

Other trials in Canada

Hungary4 sites
  • Research Site

    Budapest, 1083

  • Research Site

    Budapest, 1088

  • Research Site

    Budapest, 1113

  • Research Site

    Szeged, 6720

Other trials in Hungary

Poland3 sites
  • Research Site

    Warsaw, 01-809

  • Research Site

    Warsaw, 02-097

  • Research Site

    Warsaw, 02-507

Other trials in Poland

Portugal3 sites
  • Research Site

    Coimbra, 3000-075

  • Research Site

    Lisbon, 1350-179

  • Research Site

    Lisbon, 1649-035

Other trials in Portugal

About this study

Official title: A Randomized Double-blind Placebo-controlled Study to Evaluate the Efficacy and Safety of Cinacalcet for the Treatment of Hypercalcemia in Subjects With Primary Hyperparathyroidism Unable to Undergo Parathyroidectomy

This study is designed to demonstrate the efficacy and to assess the safety of cinacalcet for the reduction of hypercalcemia in patients with primary hyperparathyroidism for whom parathyroidectomy is indicated on the basis of an elevated corrected total serum calcium, but who are unable to undergo parathyroidectomy.

Read the detailed description

The study will consist of a 30-day screening phase, a 12-week placebo-controlled dose-titration phase, and a 16-week placebo-controlled efficacy assessment phase (EAP). Participants who complete 28 weeks on study will continue into an open-label safety extension phase for 24 weeks of investigational cinacalcet treatment.

Being tested
Cinacalcet, Placebo
Keywords
Primary hyperparathyroidism, Parathyroidectomy, Hypercalcemia
Medical subject headings
Hyperparathyroidism, Primary, Hypercalcemia

What participants receive

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

  • CinacalcetDrug

    Also called Sensipar, Mimpara

    Administered orally at a starting dose of 30 mg twice a day (BID). Participants will be eligible for a dose titration once every 3 weeks during the placebo-controlled dose titration phase based on corrected total serum calcium concentration and safety assessments obtained the previous week. Doses may be sequentially increased to 60 mg BID, 90 mg BID, and 90 mg 3 times a day (TID).

  • PlaceboDrug

    Administered orally following the same tiitration regimen as the experimental arm.

Study groups in NCT00975221
Study groupRoleWhat they receive
CinacalcetExperimentalParticipants received cinacalcet at a starting dose of 30 mg orally BID and were eligible for a dose titration once every 3 weeks during the 12-week dose-titration phase based on corrected total serum calcium concentration and safety assessments. Participants continued to receive cinacalcet for another 16 weeks during the efficacy assessment phase and then continued into the open-label extension phase and received cinacalcet at a starting dose of 30 mg BID for 24 weeks. The dose of cinacalcet could have been increased or decreased as needed to maintain a corrected total serum calcium concentration within the normal range through Week 52.
Receives: Drug: Cinacalcet
PlaceboPlacebo comparatorParticipants received placebo orally twice a day (BID) for 12 weeks during the dose titration phase and for another 16 weeks during the efficacy assessment phase. Participants then continued into the open-label extension phase and received cinacalcet at a starting dose of 30 mg BID for 24 weeks. The dose of cinacalcet could have been increased or decreased as needed to maintain a corrected total serum calcium concentration within the normal range through Week 52.
Receives: Drug: Cinacalcet; Drug: Placebo

What is being measured

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

  1. Percentage of Participants With Mean Corrected Total Serum Calcium Concentration ≤ 10.3 mg/dL (2.57 mmol/L) During the EAP

    Measured: Efficacy assessment phase (study visits at Weeks 16, 20, 24, and 28)

Secondary outcomes (3)
  1. Percentage of Participants With a ≥ 1 mg/dL (0.25 mmol/L) Decrease From Baseline in Mean Corrected Total Serum Calcium Concentration During the EAP

    Measured: Baseline and the EAP (mean of Weeks 16, 20, 24, and 28)

  2. Percent Change From Baseline in Corrected Total Serum Calcium Concentration During the EAP

    Measured: Baseline and the EAP (mean of Weeks 16, 20, 24, and 28)

  3. Percent Change From Baseline in Plasma Parathyroid Hormone Level During the EAP

    Measured: Baseline and the EAP (mean of Weeks 16, 20, 24, and 28)

Timeline

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

  1. First posted11 Sep 2009 (estimated)
  2. Study start10 Mar 2010
  3. Primary completion12 Jul 2012
  4. Study completion21 Dec 2012

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
67 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00975221
Sponsor's protocol ID
20070277
Status last verified
Sep 2018
First submitted
10 Sep 2009
Last updated
17 Oct 2018
Data monitoring committee
No

Publications

  • Khan A, Bilezikian J, Bone H, Gurevich A, Lakatos P, Misiorowski W, Rozhinskaya L, Trotman ML, Toth M. Cinacalcet normalizes serum calcium in a double-blind randomized, placebo-controlled study in patients with primary hyperparathyroidism with contraindications to surgery. Eur J Endocrinol. 2015 May;172(5):527-35. doi: 10.1530/EJE-14-0877. Epub 2015 Jan 30.

    PubMed 25637076

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Cinacalcet in people with Hyperparathyroidism, Primary and Hypercalcemia, run by Amgen at 47 sites in 7 countries.

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 16 inclusion and 13 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 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 47 sites in United States, Russia, Australia, Canada, Hungary and 2 more countries. 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.

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?

Yes. Results are posted in the registry (first posted 25 Jan 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percentage of Participants With Mean Corrected Total Serum Calcium Concentration ≤ 10.3 mg/dL (2.57 mmol/L) During the EAP (time frame: Efficacy assessment phase (study visits at Weeks 16, 20, 24, and 28)). 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 NCT00975221, 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 17 Oct 2018.

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