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CompletedNCT00800358Updated Dec 6, 2012

Safety and Efficacy Study of Paricalcitol Versus Calcitriol in the Treatment of Secondary Hyperparathyroidism

An interventional study of Paricalitol and Calcitriol in Hyperparathyroidism and Kidney Disease, sponsored by Penang Hospital, Malaysia. Completed at 11 sites in Malaysia. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2012-12-06.

Sponsored by Penang Hospital, Malaysia · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
69
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to determine whether oral paricalcitol is safer and more efficacious compared to oral calcitriol in the treatment of hyperparathyroidism in chronic kidney disease patients undergoing dialysis.

Read the detailed description

Secondary hyperparathyroidism, a common consequence of chronic kidney disease, results from abnormal regulation of calcium and phosphate homeostasis. The early administration of calcium supplements or vitamin D attenuates the development and progression of hyperparathyroidism, preventing or retarding the emergence of many of the serious complications of chronic kidney disease. However, these vitamin D derivatives also have serious side effects, including hypercalcemia and hyperphosphatemia and, as a result, a high level of the calcium-phosphate product. These adverse outcomes have prompted the development of novel, "nonhypercalcemic" vitamin D analogues. Three of these analogues have recently been marketed for clinical use in patients with chronic kidney disease: 19-nor-1,25-dihydroxyvitamin D2 (paricalcitol), 1 -hydroxyvitamin D2 (doxercalciferol), and 22-oxacalcitriol.

Oral paricalcitol was developed to provide a convenient, alternative therapy, particularly for Peritoneal Dialysis patients in whom regular intravenous administration of paricalcitol is not practical. This study is designed to determine the proportion of patients with 'End stage renal failure' on haemodialysis or peritoneal dialysis and secondary hyperparathyroidism who achieved more than 30% reduction in baseline iPTH concentration at 24 weeks of treatment with Paricalcitol or Calcitriol capsules.

02

Conditions studied

  • Hyperparathyroidism
  • Kidney Disease

Keywords

  • Secondary hyperparathyroidism
  • End stage renal disease
  • Haemodialysis
  • Peritoneal dialysis
  • Paricalcitol (Zemplar)
  • Calcitriol
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In context

Kidney Diseases

3,840 studies on the registry are indexed under Kidney Diseases; 500 are open to participants now.

This study's enrollment of 69 is close to the median of 70 across 2,640 interventional studies indexed under Kidney Diseases.

Browse Kidney Diseases studies →

Lead sponsor

Penang Hospital, Malaysia is the lead sponsor of 13 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age at or above 18 years
  • End stage renal disease on regular maintenance haemodialysis or peritoneal dialysis for at least 3 months
  • iPTH level of 300 pg/ml or greater at baseline
  • Written informed consent by subject or guardian
  • Female patients will either be post-menopausal for more than 2 years, surgically sterile or if of childbearing age, using double contraception

Exclusion criteria

Exclusion Criteria:

  • Baseline calcium value more than 2.87 mmol/L
  • Baseline Ca x P of greater than 5.63 mmol2/l2
  • Positive for HBsAg or Hepatitis C with raised ALT twice above upper limit of normal or evidence of liver cirrhosis
  • Clinically significant gastrointestinal disease
  • History of allergic reaction to calcitriol or other vitamin D compounds
  • Inability or unwillingness to provide written consent.
  • Inability or unwillingness to comply with the requirements of the protocol as determined by the investigator.
  • Pregnancy, breastfeeding or use of non-reliable method of contraception.
  • Use of medications prohibited prior to randomization such as ketoconazole and other strong P450 3A inhibitors including atazanavir, clarithromycin, indinavir, itraconazole, nefazodone, nelfinavir, ritonavir, saquinavir
  • Necessity for calcitonin, biphosphonates, maintenance oral or intravenous glucocorticoid or cinacalcet or other drugs that may affect calcium or bone metabolism.
  • Alcohol or substance abuse within 6 months prior to screening
  • Other medical condition which, in the investigator's judgement, may be associated with increased risk to the subject or may interfere with study assessments or outcomes.
  • Participation in another clinical trial and/or receipt of investigational drugs within 4 weeks prior to screening visit.
  • If PD subjects had active peritonitis within one month prior to the screening visit
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
69 participants (actual)

Study arms

  • Experimental
    1

    Oral Paricalcitol in varying doses

    Drug: Paricalitol

  • Active comparator
    2

    Calcitriol

    Drug: Calcitriol

Interventions

  • DrugParicalitol

    oral paricalcitol variable daily dosing based on intact PTH level for 6 months

    Also known as: Zemplar

  • DrugCalcitriol

    oral calcitriol variable daily dosing based on intact PTH level for 6 months

06

What researchers measure

Primary outcomes

  1. More than 30% reduction in baseline iPTH concentration at 24 weeks of treatment with Paricalcitol or Calcitriol capsules.

    Time frame: 24 weeks

Secondary outcomes

  1. Quantum of reduction in alkaline phosphatase level, Time duration to achieve the target level of iPTH. (Titration time), Serum Calcium, phosphate, Ca x Po4 product change from baseline

    Time frame: 24 weeks

  2. Incidence of hypercalcaemic episodes

    Time frame: Through out 24 weeks of participation from the time of enrollment

07

Study locations

11 sites
  • Hospital Sultanah Bahiyah Haemodialysis Unit KM 6 Jalan Langgar
    Alor Star, Kedah 05460, Malaysia
  • Hemodialysis Unit, Raja Perempuan Zainab II Hospital
    Kota Bahru, Kelantan 15586, Malaysia
  • Hemodialysis Unit, Tengku Ampuan Afzan Hospital
    Kuantan, Pahang 25100, Malaysia
  • Clinical Research Centre, Penang Hospital
    Georgetown, Penang 10990, Malaysia
  • Haemodialysis Unit, Seberang Jaya Hospital
    Seberang jaya, Penang 13700, Malaysia
  • Hemodialysis Unit, Taiping Hospital
    Taiping, Perak 34000, Malaysia
  • Nephrology Department, Tengku Ampuan Rahimah Hospital
    Klang, Selangor 41200, Malaysia
  • Hemodialysis Unit, Kuala Lumpur Hospital
    Kuala Lumpur, Selangor 50586, Malaysia
  • Haemodialysis Unit, Serdang Hospital
    Serdang, Selangor 43000, Malaysia
  • Hemodialysis Unit, Tuanku Ja'afar Seremban Hospital
    Seremban, Selangor 70300, Malaysia
  • Haemodialysis Unit, Melaka Hospital
    Melaka, 75400, Malaysia
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References and documents

Publications

  • Ong LM, Narayanan P, Goh HK, Manocha AB, Ghazali A, Omar M, Mohamad S, Goh BL, Shah S, Seman MR, Vaithilingam I, Ghazalli R, Rahmat K, Shaariah W, Ching CH; Oral Paricalcitol in ESRD Study Group. Randomized controlled trial to compare the efficacy and safety of oral paricalcitol with oral calcitriol in dialysis patients with secondary hyperparathyroidism. Nephrology (Carlton). 2013 Mar;18(3):194-200. doi: 10.1111/nep.12029. PubMed 23311404 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 6, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00800358
Lead sponsor
Penang Hospital, Malaysia
Collaborators
Ministry of Health, Malaysia
Responsible party
Dr.Ong Loke Meng (Consultant Nephrologist, Penang Hospital, Malaysia) — Principal investigator
First posted
Dec 2, 2008
Start date
Nov 2008
Primary completion
Oct 2009
Completion
Dec 2009
Last update
Dec 6, 2012

Study contacts

Ong L Meng, MBBS, MRCP
principal investigator · Clinical Research Centre, Penang Hospital

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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