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Efficacy and Safety of 6 Months Treatment With Paricalcitol Injection or Oral in Patients With Secondary Hyperparathyroidism on Dialysis

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00537979
First Posted: October 2, 2007
Last Update Posted: October 25, 2011
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Abbott
  Purpose
Prospective, non-randomized, multi-center study to assess the efficacy and safety of paricalcitol injection or oral administered over 6 months to patients with secondary hyperparathyroidism on dialysis.

Condition Intervention Phase
Secondary Hyperparathyroidism Dialysis Drug: Paricalcitol injection Drug: Paricalcitol capsules Phase 4

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Prospective, Non-randomized, Multicenter Study to Assess the Efficacy and Safety of Oral or Intravenous Paricalcitol Administered Over 6 Months to Patients With Secondary Hyperparathyroidism on Dialysis

Resource links provided by NLM:

Drug Information available for: Paricalcitol
U.S. FDA Resources

Further study details as provided by Abbott:

Primary Outcome Measures:
  • Proportion of Subjects Who Achieve at Least a 50% Reduction in iPTH Compared to Baseline Level [ Time Frame: 24 weeks ]
    Number of participants who achieved at least a 50% reduction in intact parathyroid hormone (iPTH) compared to the baseline level.


Secondary Outcome Measures:
  • Analysis of Episodes of Hypercalcemia (> 11.5 mg/dL), Hyperphosphatemia (> 7.0 mg/dL) and Elevations of Calcium x Phosphorus Product (> 75) [ Time Frame: 24 Weeks ]
    Number of participants with hypercalcemia (calcium levels greater than 11.5 mg/dL), hyperphosphatemia (phosphorus levels greater than 7.0 mg/dL), or calcium x phosphorus product levels greater than 75.

  • Proportion of Subjects Who Achieve an iPTH <300 pg/mL [ Time Frame: 24 weeks ]
    Number of participants who achieved an intact parathyroid hormone (iPTH) level of less than 300 pg/mL.

  • Time Required to Achieve: (1) a Reduction in iPTH Less Than <300 pg/mL;(2) a 50% Reduction in iPTH Compared to the Baseline Level; and (3) Either a Reduction in iPTH Less Than <300 pg/mL or a 50% Reduction in iPTH Compared to the Baseline Level [ Time Frame: 24 weeks ]
    Number of days required to achieve a reduction in intact parathyroid hormone (iPTH) to less than 300 pg/mL, a reduction in iPTH of greater than or equal to 50%, or either a reduction in iPTH to less than 300 pg/mL or a reduction in iPTH of greater than or equal to 50%.

  • Duration of Response to Treatment [ Time Frame: 24 weeks ]
    Time in days between 2 consecutive visits with a reduction in intact parathyroid hormone (iPTH) of greater than or equal to 50% from the baseline visit.

  • Health-related Quality of Life With Paricalcitol Injection or Oral Treatment [ Time Frame: Baseline and 24 weeks ]
    Analysis of the differences before and after 24 weeks of treatment in various quality of life measurements for participants on hemodialysis receiving paricalcitol injection and participants on peritoneal dialysis receiving paricalcitol capsules.
Enrollment: 147
Study Start Date: September 2007
Study Completion Date: July 2010
Primary Completion Date: July 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Paricalcitol injection
ABT-358 Zemplar
 Drug: Paricalcitol injection
Most recent iPTH level in pg/mL divided by 100 = dose in mcg; dose is rounded down to nearest mcg and administered 3x weekly
Other Names:
  • ABT-358
  • paricalcitol
  • Zemplar
Active Comparator: Paricalcitol capsules
ABT-358 Zemplar
 Drug: Paricalcitol capsules
Most recent iPTH level in pg/mL divided by 80 = dose in mcg; dose is rounded down to nearest mcg and administered 3x weekly
Other Names:
  • ABT-358
  • paricalcitol
  • Zemplar

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patients >=18 years with secondary hyperparathyroidism (iPTH >= 300 pg/mL)
  • Patients in a chronic hemodialysis or peritoneal dialysis program previously treated with vitamin D metabolites or without previous treatment
  • Patients in which treatment with paricalcitol injection or oral is clinically indicated according to the criteria of the participating investigator
  • Patients providing their signed informed consent to participate in the trial

Exclusion Criteria:

  • Patients with severe hyperparathyroidism (iPTH > 3,000 pg/ml)
  • Patients with hypercalcaemia (calcium >=11.0 mg/dl, adjusted according to Albumin level), hyperphosphataemia (phosphorus >= 6.5 mg/dl) or patients with calcium x phosphorus >= 70
  • Known hypersensitivity and/or toxicity to vitamin D metabolites and/or other product ingredients
  • Patients who have participated in clinical studies within the last month or who are currently enrolled in clinical studies
  • Patients who cannot tolerate or take phosphorus binders that do not contain Calcium and/or Aluminum
  • Patients that in the opinion of the investigator, for any reason, are not good candidates for therapy with Synthetic Analogues of Vitamin D
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00537979


Locations
Mexico
Site Ref # / Investigator 19391
Jojutla Morelos, Mexico, CP 62900
Site Ref # / Investigator 19389
Mexico City, Mexico, CP 03900
Site Ref # / Investigator 19390
Mexico City, Mexico, CP 14000
Site Ref # / Investigator 19393
Mexico City, Mexico, CP 14080
Site Ref # / Investigator 19395
Mexico City, Mexico, CP 16070
Site Ref # / Investigator 19392
Mexico D.F., Mexico, CP 01030
Site Ref # / Investigator 19397
Mexico D.F., Mexico, CP 02080
Site Ref # / Investigator 19396
Mexico D.F., Mexico, CP 03650
Site Ref # / Investigator 19394
Mexico D.F., Mexico, CP 14140
Site Ref # / Investigator 19399
Puebla, Mexico, CP 72400
Site Ref # / Investigator 19398
Zapopan, Mexico, CP 45116
Site Ref # / Investigator 19388
Zapopan, Mexico, CP 45150
Sponsors and Collaborators
Abbott
Investigators
Study Director: Jose-Luis Cañadas, MD Abbott
  More Information

Responsible Party: Abbott
ClinicalTrials.gov Identifier: NCT00537979     History of Changes
Other Study ID Numbers: W10-129
First Submitted: September 28, 2007
First Posted: October 2, 2007
Results First Submitted: July 20, 2011
Results First Posted: October 25, 2011
Last Update Posted: October 25, 2011
Last Verified: September 2011

Keywords provided by Abbott:
Dialysis
Hyperparathyroidism
Zemplar

Additional relevant MeSH terms:
Neoplasm Metastasis
Hyperparathyroidism
Hyperparathyroidism, Secondary
Neoplastic Processes
Neoplasms
Pathologic Processes
Parathyroid Diseases
 Endocrine System Diseases
Ergocalciferols
Vitamins
Micronutrients
Growth Substances
Physiological Effects of Drugs
Bone Density Conservation Agents


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