Cinacalcet Study to Reach Kidney Disease Outcomes Quality Initiative (K/DOQI) Levels

May 10, 2013 updated by: Amgen

Cinacalcet Open Label Study to Reach K/DOQI Levels

The purpose of this study is to observe the effects of a treatment strategy that incorporates cinacalcet HCl into the management of secondary hyperparathyroidism (HPT) to K/DOQI recommended targets in subjects with end stage renal disease (ESRD) receiving hemodialysis, on bio-intact parathyroid hormone, corrected serum calcium, serum phosphorus, and calcium phosphorus product.

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Phase

  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria: - Men and women must agree to use highly effective contraceptive measures throughout the study - Prescribed hemodialysis for at least 3 months before study day 1 - Must be receiving IV vitamin D sterols during the 30 days before day

1 (greater than 2 µg of paricalcitol, greater than 1 µg of doxercalciferol, or greater than 0.5 µg of calcitriol per dialysis treatment) - The mean of 2 biPTH determinations obtained from the central laboratory must be greater than or equal to 80 pg/mL and less than or equal to 160 pg/mL - The mean 2 albumin corrected serum calcium determinations obtained from the central laboratory must be greater than or equal to 8.4 mg/dL - The mean of two Ca x P calculations, based on corrected serum calcium and serum phosphorus determinations obtained from the central laboratory must be greater than 55 mg²/dL Exclusion Criteria: - Have an unstable medical condition, defined as having been hospitalized, other than for dialysis vascular access revision, within 30 days before day 1, or otherwise unstable in the judgment of the investigator - Pregnant or nursing females - Parathyroidectomy in the 12 weeks before day 1 - Received, within 21 days before day 1 of the dose titration phase, therapy with medications that are predominantly metabolized by the enzyme CYP2D6 and have a narrow therapeutic index (e.g., flecainide, vinblastine, thioridazine and most tricyclic antidepressants). The antidepressant amitriptyline is permitted - Received, within 21 days before day 1, therapy with medications that are potent inhibitors (e.g., ketoconazole, itraconazole and erythromycin) or inducers (e.g., rifampin and St. John's Wort) of the enzyme CYP3A4. Phenytoin, phenobarbital and carbamazepine are also potent inducers of this enzyme. However, subjects on a stable dose of any of these anti-convulsants at baseline, with no evidence of seizure activity in the past 2 months may be eligible for the study - Experienced a myocardial infarction within 12 weeks prior to day 1 - Currently enrolled in, or have not yet completed at least 30 days since ending other investigational device or drug trials, or are receiving other investigational agents (experimental dialysis machines are acceptable) - Current gastrointestinal disorder that may be associated with impaired absorption of orally administered medications or an inability to swallow tablets - Participated in other studies with cinacalcet HCl - Disorder that would interfere with the understanding and giving of informed consent or compliance with protocol requirements

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Secondary hyperparathyroidism in people with kidney failure.

Secondary Outcome Measures

Outcome Measure
Uncontrolled secondary hyperparathyroidism

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

First Submitted

June 10, 2005

First Submitted That Met QC Criteria

June 10, 2005

First Posted (Estimate)

June 13, 2005

Study Record Updates

Last Update Posted (Estimate)

May 13, 2013

Last Update Submitted That Met QC Criteria

May 10, 2013

Last Verified

May 1, 2013

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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