The Effect of Paricalcitol Capsules on Reducing Albuminuria in Patients With Type 2 Diabetic Nephropathy Being Treated With Renin-angiotensin System Inhibitors
Public ClinicalTrials.gov record NCT00421733. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
VITAL Study - Selective VITamin D Receptor Activator (Paricalcitol) for Albuminuria Lowering Study: A Phase 2, Prospective, Randomized, Double-blind, Placebo-Controlled, Multicenter Study to Evaluate the Safety and Efficacy of Paricalcitol Capsules on Reducing Albuminuria in Type 2 Diabetic Nephropathy Subjects Who Are Currently Being Treated With Renin-angiotensin System Inhibitors
Study identification
- NCT ID
- NCT00421733
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Abbott
- Industry
- Enrollment
- 281 participants
Conditions and interventions
Conditions
Interventions
- Zemplar (paricalcitol) capsules Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 20 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 30, 2006
- Primary completion
- May 31, 2009
- Completion
- May 31, 2009
- Last update posted
- Jan 19, 2012
2006 – 2009
United States locations
- U.S. sites
- 27
- U.S. states
- 15
- U.S. cities
- 24
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Site Reference ID/Investigator# 862 | Phoenix | Arizona | 85012 | — |
| Site Reference ID/Investigator# 864 | Fountain Valley | California | 92708 | — |
| Site Reference ID/Investigator# 7291 | Yuba City | California | 95991 | — |
| Site Reference ID/Investigator# 853 | Hudson | Florida | 34667 | — |
| Site Reference ID/Investigator# 867 | Lauderdale Lakes | Florida | 33313 | — |
| Site Reference ID/Investigator# 857 | Pembroke Pines | Florida | 33028 | — |
| Site Reference ID/Investigator# 8901 | West Palm Beach | Florida | 33401 | — |
| Site Reference ID/Investigator# 7113 | Roswell | Georgia | 30076 | — |
| Site Reference ID/Investigator# 2531 | Chicago | Illinois | 60654 | — |
| Site Reference ID/Investigator# 3371 | Evanston | Illinois | 60201 | — |
| Site Reference ID/Investigator# 869 | Indianapolis | Indiana | 46202 | — |
| Site Reference ID/Investigator# 8054 | Baton Rouge | Louisiana | 70808 | — |
| Site Reference ID/Investigator# 854 | Rockville | Maryland | 20852 | — |
| Site Reference ID/Investigator# 6281 | Boston | Massachusetts | 02215 | — |
| Site Reference ID/Investigator# 859 | Brooklyn Center | Minnesota | 55430 | — |
| Site Reference ID/Investigator# 7214 | Omaha | Nebraska | 68131 | — |
| Site Reference ID/Investigator# 8046 | Albany | New York | 12206 | — |
| Site Reference ID/Investigator# 866 | Charlotte | North Carolina | 28208 | — |
| Site Reference ID/Investigator# 8039 | Greenville | North Carolina | 27834 | — |
| Site Reference ID/Investigator# 8053 | Morehead City | North Carolina | 28557 | — |
| Site Reference ID/Investigator# 6626 | Winston-Salem | North Carolina | 27103 | — |
| Site Reference ID/Investigator# 7495 | Carlisle | Pennsylvania | 17015 | — |
| Site Reference ID/Investigator# 9061 | Dallas | Texas | 75230 | — |
| Site Reference ID/Investigator# 8325 | Dallas | Texas | 75231 | — |
| Site Reference ID/Investigator# 856 | Dallas | Texas | 75390 | — |
| Site Reference ID/Investigator# 7494 | San Antonio | Texas | 78229 | — |
| Site Reference ID/Investigator# 774 | San Antonio | Texas | 78229 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 45 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00421733, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 19, 2012 · Synced Jul 21, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00421733 live on ClinicalTrials.gov.