Bone Biopsy Study For Dialysis Patients With Secondary Hyperparathyroidism of End Stage Renal Disease (BONAFIDE)

June 24, 2014 updated by: Amgen

Bone Histomorphometry Assessment For Dialysis Patients With Secondary Hyperparathyroidism of End Stage Renal Disease

The purpose of this study is to evaluate the effects of cinacalcet on markers of bone turnover in patients with kidney disease who are receiving dialysis.

Study Overview

Status

Completed

Intervention / Treatment

Detailed Description

Secondary hyperparathyroidism (HPT) is common in people with end stage renal disease (kidney disease). Patients with secondary HPT often have enlarged parathyroid glands in the neck and as a result often have elevated parathyroid hormone (PTH) levels . Patients with secondary HPT may have bone disease (osteodystrophy). Cinacalcet has been used to decrease PTH levels in patients with secondary HPT. Patients with secondary HPT may have bone disease (osteodystrophy). This bone disease may cause bone pain, fractures, and poor formation of red blood cells. The purpose of this study is to evaluate effects of cinacalcet on markers of bone turnover in patients with kidney disease who are receiving dialysis.

Study Type

Interventional

Enrollment (Actual)

110

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Antwerpen, Belgium, 2060
        • Research Site
      • Antwerpen, Belgium, 2020
        • Research Site
      • Bruxelles, Belgium, 1070
        • Research Site
      • Leuven, Belgium, 3000
        • Research Site
      • Liege, Belgium, 4000
        • Research Site
      • Hradec Kralove, Czech Republic, 500 05
        • Research Site
      • Praha 6, Czech Republic, 169 00
        • Research Site
      • Budapest, Hungary, 1083
        • Research Site
      • Debrecen, Hungary, 4012
        • Research Site
      • Gyor, Hungary, 9023
        • Research Site
      • Miskolc, Hungary, 3526
        • Research Site
      • Nyiregyhaza, Hungary, 4400
        • Research Site
      • Avellino, Italy, 83100
        • Research Site
      • Cremona, Italy, 26100
        • Research Site
      • Genova, Italy, 16132
        • Research Site
      • Milano, Italy, 20162
        • Research Site
      • Ortona CH, Italy, 66026
        • Research Site
      • Ostia RM, Italy, 00122
        • Research Site
      • Roma, Italy, 00149
        • Research Site
      • Roma, Italy, 00184
        • Research Site
      • Roma (RM), Italy, 00133
        • Research Site
      • Skopje, Macedonia, The Former Yugoslav Republic of, 1000
        • Research Site
      • Krakow, Poland, 31-501
        • Research Site
      • Lodz, Poland, 90-153
        • Research Site
      • Wroclaw, Poland, 50-556
        • Research Site
      • Almada, Portugal, 2800-455
        • Research Site
      • Estoril, Portugal, 2765-294
        • Research Site
      • Guimarães, Portugal, 4810-273
        • Research Site
      • Porto, Portugal, 4200-072
        • Research Site
      • Vila Franca de Xira, Portugal, 2600-076
        • Research Site
    • PR
      • Porto, PR, Portugal, 4250-499
        • Research Site
      • Madrid, Spain, 28046
        • Research Site
    • Cantabria
      • Santander, Cantabria, Spain, 39008
        • Research Site
    • Cataluña
      • Barcelona, Cataluña, Spain, 08003
        • Research Site
      • Barcelona, Cataluña, Spain, 08036
        • Research Site
    • Madrid
      • Alcorcón, Madrid, Spain, 28922
        • Research Site
      • Zurich, Switzerland, 8091
        • Research Site
      • Izmir, Turkey, 35360
        • Research Site
      • Manchester, United Kingdom, M13 9WL
        • Research Site
    • Arizona
      • Phoenix, Arizona, United States, 85012
        • Research Site
    • California
      • Los Angeles, California, United States, 90095
        • Research Site
    • Colorado
      • Denver, Colorado, United States, 80220
        • Research Site
    • Connecticut
      • New Haven, Connecticut, United States, 06511
        • Research Site
    • Florida
      • Fort Lauderdale, Florida, United States, 33334
        • Research Site
    • Illinois
      • Evanston, Illinois, United States, 60201
        • Research Site
    • Louisiana
      • New Orleans, Louisiana, United States, 70121
        • Research Site
    • Maryland
      • Baltimore, Maryland, United States, 21205
        • Research Site
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Research Site
    • New Jersey
      • Teaneck, New Jersey, United States, 07666
        • Research Site
    • New York
      • Bronx, New York, United States, 10467
        • Research Site
      • Flushing, New York, United States, 11355
        • Research Site
      • Great Neck, New York, United States, 11021
        • Research Site
      • New York, New York, United States, 10032
        • Research Site
    • Pennsylvania
      • Allentown, Pennsylvania, United States, 18103
        • Research Site
    • Texas
      • Houston, Texas, United States, 77076
        • Research Site

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: Subjects will be eligible for the study if they meet all of the following criteria:

  • One Intact Parathyroid Hormone (iPTH) determination obtained from the central laboratory must be >/= 300 pg/mL.
  • One serum calcium determination obtained from the central laboratory must be >/= 8.4 mg/dL (2.1 mmol/L).
  • One Bone Alkaline Phosphatase (BALP) determination obtained from the central laboratory must be >/= 20.9 ng/mL.
  • Positive histologic confirmation of high bone turnover disease as assessed by the central bone histology center.
  • Treated with dialysis >/= 1 month before the date of informed consent.

Exclusion Criteria: Subjects will be ineligible for the study if they:

  • Have an unstable medical condition in the judgment of the investigator.
  • Are pregnant or nursing women.
  • Had a parathyroidectomy in the 3 months before the date of informed consent.
  • For subjects prescribed vitamin D, have received vitamin D therapy for less than 30 days before day 1 or required a change in vitamin D brand or dose level within 30 days before day 1.
  • Ever received therapy with Sensipar®/Mimpara®

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Cinacalcet
All subjects were enrolled into the single arm to receive Cinacalcet. There was no comparator arm.
All enrolled subjects receive study medication at a starting dose of 30 mg cinacalcet once daily beginning on day 1. Possible sequential doses are 30 mg, 60mg, 90mg, 120mg, 180 mg taken once daily. During the study, dose adjustment (dose increase/decrease/withholding) is based upon iPTH, serum calcium, and subject safety information. Subjects swallowed tablets whole without biting or chewing. Subjects were dispensed investigational product every 4 weeks starting from Day 1 through to Week 48.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change From Baseline to End of Study in Bone Formation Rate (BFR)
Time Frame: Baseline to week 52
Baseline to week 52

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percent Change From Baseline in Serum Calcium During the Efficacy Assessment Phase (EAP)
Time Frame: Baseline to weeks 40-52
Baseline to weeks 40-52
Percent Change From Baseline in Serum Phosphorus During the Efficacy Assessment Phase (EAP)
Time Frame: Baseline to weeks 40-52
Baseline to weeks 40-52
Percent Change From Baseline in Ca x P During the Efficacy Assessment Phase (EAP)
Time Frame: Baseline to weeks 40-52
Baseline to weeks 40-52
Percent Change From Baseline in Bone Specific Alkaline Phosphatase (BALP) at Week 52
Time Frame: Baseline to week 52
Baseline to week 52
Percent Change From Baseline in N - Telopeptide (NTx) at Week 52
Time Frame: Baseline to week 52
Baseline to week 52
Percent Change From Baseline in Parathyroid Hormone (PTH) During the Efficacy Assessment Phase (EAP)
Time Frame: Baseline to weeks 40-52
Baseline to weeks 40-52
Change From Baseline to End of Study in Osteoblast Perimeter (Osteoblast Perimeter/Osteoid Perimeter)
Time Frame: Baseline to week 52
Osteoblast Perimeter was calculated as "Osteoblast Perimeter/Osteoid Perimeter * 100"
Baseline to week 52
Change From Baseline to End of Study in Osteoclast Perimeter (Osteoclast Perimeter/Eroded Perimeter)
Time Frame: Baseline to week 52
Osteoclast Perimeter was calculated as "Osteoclast Perimeter/Eroded Perimeter * 100"
Baseline to week 52
Change in Categorization From Baseline to End of Study in Fibrosis Area/Tissue Area
Time Frame: Baseline to week 52
Categorisation at each timepoint was based on fibrosis area as a percentage of tissue area (Fibrosis Area/Tissue Area * 100)
Baseline to week 52
Change From Baseline to End of Study in Eroded Perimeter/Bone Perimeter
Time Frame: Baseline to week 52
Eroded Perimeter/Bone Perimeter was calculated as "Eroded Perimeter/Bone Perimeter * 100"
Baseline to week 52
Percent Change From Baseline in Osteocalcin (OC) at Week 52
Time Frame: Baseline to week 52
Baseline to week 52
Percent Change From Baseline in Tartrate Resistant Acid Phosphatase(TRAP) at Week 52
Time Frame: Baseline to week 52
Baseline to week 52

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 Major Dates

Study Start

May 1, 2006

Primary Completion (Actual)

May 1, 2011

Study Completion (Actual)

May 1, 2011

Study Registration Dates

First Submitted

December 2, 2005

First Submitted That Met QC Criteria

December 2, 2005

First Posted (Estimate)

December 6, 2005

Study Record Updates

Last Update Posted (Estimate)

July 21, 2014

Last Update Submitted That Met QC Criteria

June 24, 2014

Last Verified

June 1, 2014

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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