Safety and Efficacy of Zemplar Capsule in Reducing Serum iPTH Levels in Chronic Kidney Disease Subjects (Three Times Weekly)
Summary
The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →
Investigators
The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.
- Laura Williams, M.D.
Abbott
Study Director
A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.
Sites
19 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.
- Wojskowy Instytut Medyczny
Warsaw, Poland
- Tucson Therapeutic Research Institute, Inc.
Tucson, Arizona, United States
- Facility name not stated
Pasadena, California, United States
- California Institute of Renal Research
San Diego, California, United States
- Nephrology Educational Services and Research, Inc.
Tarzana, California, United States
- Phoenix Internal Medicine Associates
Waterbury, Connecticut, United States
- University of Florida
Gainesville, Florida, United States
- Miami Kidney Group
Miami, Florida, United States
- Icsl Clinical Studies
Sarasota, Florida, United States
- Genesis Clinical Research Corporation
Tampa, Florida, United States
- Evanston Northwestern Healthcare
Evanston, Illinois, United States
- Medisphere Medical Research Center
Evansville, Indiana, United States
- Ochsner Clinic Chronic Dialysis
New Orleans, Louisiana, United States
- Biolab Research, Llc
Rockville, Maryland, United States
- the Rogosin Institute
New York, New York, United States
- Dialysis Clinic, Inc.
Cincinnati, Ohio, United States
- Kidney Associates
Houston, Texas, United States
- Texas Tech University Health Science Center
Lubbock, Texas, United States
- University of Texas Health Science Center
San Antonio, Texas, United States
Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.
Drugs studied
No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →
Registration & key dates
Registry attributes as recorded on the ClinicalTrials.gov study record.
- Start
- 28 Feb 2002
- Primary completion
- —
- Completion
- —
- Last update posted
- 2 Aug 2006
- Registered enrollment
- 68
- Registry id
- NCT00048451
Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.