Additive Renoprotective Effects of Oral Calcitriol in IgA Nephropathy Patients Taking Renin-Angiotensin System Blockers

The recruitment status of this study is unknown because the information has not been verified recently.
Verified June 2013 by Yonsei University.
Recruitment status was  Recruiting
Information provided by (Responsible Party):
Yonsei University Identifier:
First received: November 8, 2010
Last updated: June 1, 2013
Last verified: June 2013
This study will help to show the efficacy of vitamin D and address the optimal strategy to minimize renal injury in IgAN patients.

Condition Intervention
IgA Nephropathy
Drug: Calcitriol

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver)
Primary Purpose: Treatment
Official Title: Additive Renoprotective Effects of Oral Calcitriol in IgA Nephropathy Patients Taking Renin-Angiotensin System Blockers

Resource links provided by NLM:

Further study details as provided by Yonsei University:

Primary Outcome Measures:
  • changes in proteinuria [ Time Frame: random urine protein/creatinine ratio every 2month and 24hour urine protein every 6month ] [ Designated as safety issue: No ]
    comparison of proteinuria amount checked by random urine protein/creatinine and 24hour urine protein

Secondary Outcome Measures:
  • changes in serum creatinine [ Time Frame: serum creatinine every 2month ] [ Designated as safety issue: No ]
    comparison of renal function checked by serum creatinine and calculated renal function by MDRD equation

  • changes in systolic blood pressure and diastolic pressure [ Time Frame: check blood pressure at very first visit and every 2-month ] [ Designated as safety issue: No ]
    check systolic and diastolic blood pressure

  • changes in urinary biomarkers (angiotensinogen, angiotensin II, TGF-beat, IL-6, MCP-1, TNF-alpha) [ Time Frame: every 6month ] [ Designated as safety issue: No ]
    urine marker check every 6month

  • changes in serum 25(OH)2D3, 1,25(OH)2D3, parathyroid hormone [ Time Frame: every 6month ] [ Designated as safety issue: No ]
    serum marker check every 6month

  • changes in serum inflammatory markers (hsCRP, IL-6) [ Time Frame: every 6month ] [ Designated as safety issue: No ]
    serum marker check every 6month

Estimated Enrollment: 168
Study Start Date: December 2010
Estimated Study Completion Date: December 2013
Estimated Primary Completion Date: December 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: oral calcitriol
Drug: Calcitriol
Calcitriol(1,25-dihydroxycholecalciferol, vitamin D3 analog)0.25 μg per day
No Intervention: placebo


Ages Eligible for Study:   20 Years to 70 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Biopsy-proven Ig AN patients aged 20-70 years
  • Patients with residual proteinuria > 500 mg/g creatinine despite renin-angiotensin system blockade and adequate blood pressure control for more than 3 months
  • Patients who give informed consent, and 4) estimated GFR >= 30 ml/min/1.73 m2.

Exclusion Criteria:

  • patients < 20 years or > 70 years
  • hypersensitivity to vitamin D analogs
  • patients who need urgent dialysis
  • hypercalcemia within 3 months (uncorrected serum calcium level > 10.2 mg/dL)
  • clinical features of rapidly progressive glomerulonephritis
  • life expectancy less than 24 months
  • uncontrolled hypertension
  • decompensated liver or lung disease
  • symptomatic heart failure (NYHA class II-IV or LVEF < 40%)
  • estimated GFR < 30 ml/min/1.73 m2.
  Contacts and Locations
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, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01237028

Korea, Republic of
Kwandong University Myongji Hospital Recruiting
Goyang, Korea, Republic of, 412-270
Contact: Soo-Young Yoon, MD    82-31-810-5405   
Contact: Sang-Cheol Lee, MD    82-31-810-5426   
National Health Insurance Corporation Ilsan Hospital Recruiting
Goyang, Korea, Republic of, 41-0719
Contact: Tae-Ik Chang, MD    82-31-900-0246   
Wongkwang University Sanbon Medical Center Recruiting
Gunpo, Korea, Republic of, 435-040
Contact: Hyun-Wook Kim, MD    82-31-390-2970   
CHA University Bundang Medical Center Recruiting
Seongnam, Korea, Republic of, 435-040
Contact: Hyung-Jong Kim, MD    82-31-780-5895   
Ewha Womans University Medical Center Recruiting
Seoul, Korea, Republic of, 158-710
Contact: Dong-Ryeol Ryu, MD    82-2-2650-2507   
Seoul National University Hospital Recruiting
Seoul, Korea, Republic of, 110-752
Contact: Dong-Ki Kim, MD    82-2-2072-2303   
Severance Hospital Recruiting
Seoul, Korea, Republic of, 120-752
Contact: Tae-Hyun Yoo, MD, Ph.D    82-2-2228-1989   
Contact: Seung-Hyuk Han, MD, Ph.D    82-2-2228-1931   
Principal Investigator: Tae-Hyun Yoo, MD, Ph.D         
Sponsors and Collaborators
Yonsei University
Principal Investigator: Tae-Hyun Yoo, MD, Ph.D Severance Hospital
  More Information

No publications provided

Responsible Party: Yonsei University Identifier: NCT01237028     History of Changes
Other Study ID Numbers: 4-2010-0439
Study First Received: November 8, 2010
Last Updated: June 1, 2013
Health Authority: South Korea: Korea Food and Drug Administration (KFDA)

Additional relevant MeSH terms:
Glomerulonephritis, IGA
Kidney Diseases
Autoimmune Diseases
Immune System Diseases
Urologic Diseases
Bone Density Conservation Agents
Calcium Channel Agonists
Cardiovascular Agents
Growth Substances
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
Physiological Effects of Drugs
Therapeutic Uses
Vasoconstrictor Agents
Vitamins processed this record on November 30, 2015