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ClinicalTrials.gov public records Last synced Oct 1, 2026, 4:58 AM EDT

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Showing 1–24 of 74 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Hyperparathyroidism; Secondary, Renal Clear all
Completed Phase 4 Interventional

A Phase 4 Pharmacokinetic Study of Hectorol Injection and Zemplar Injection in CKD Subjects on Hemodialysis

NCT00454350
View directory record Official record
Conditions
Secondary Hyperparathyroidism
Interventions
Hectorol (doxercalciferol injection), Zemplar (Paricalcitol injection)
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 5, 2015 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 2 Interventional

Phase II Randomized Study of the Effects of Growth Hormone on Children and Adolescents on Maintenance Dialysis

NCT00004340
View directory record Official record
Conditions
Renal Osteodystrophy, End Stage Renal Disease
Interventions
calcitriol, growth hormone
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
1 Year to 18 Years
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1995
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 3 Interventional Results available

Extension Study of Cinacalcet for Treatment of Secondary Hyperparathyroidism (SHPT) in Pediatric Patients With Chronic Kidney Disease on Dialysis

NCT02341417
View directory record Official record
Conditions
Secondary Hyperparathyroidism, Chronic Kidney Disease
Interventions
Cinacalcet
Drug
Lead sponsor
Amgen
Industry
Eligibility
Up to 18 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
18
States / cities
Los Angeles, California • Tucker, Georgia • Baltimore, Maryland + 15 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2020 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 4 Interventional

Safety and Effectiveness of Zemplar Injection in Decreasing iPTH Levels in Pediatric ESRD Subjects on Hemodialysis

NCT00053547
View directory record Official record
Conditions
Secondary Hyperparathyroidism, End Stage Renal Disease
Interventions
paricalcitol injection
Drug
Lead sponsor
Abbott
Industry
Eligibility
2 Years to 20 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
6
States / cities
Stanford, California • Miami, Florida • Buffalo, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2006 · Synced Oct 1, 2026, 4:58 AM EDT
Terminated Phase 3 Interventional Results available

Phase 3 Safety and Efficacy Study of CTAP101 Extended-release Capsules in Children With Secondary Hyperparathyroidism

NCT05543928
View directory record Official record
Conditions
Chronic Kidney Disease stage3, Chronic Kidney Disease stage4, Vitamin d Deficiency, Secondary Hyperparathyroidism
Interventions
CTAP101, Placebo
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
8 Years to 17 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Columbus, Ohio • Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Jul 25, 2025 · Synced Oct 1, 2026, 4:58 AM EDT
Completed No phase listed Observational

Ergocalciferol in Chronic Kidney Disease

NCT00411294
View directory record Official record
Conditions
Chronic Kidney Disease
Interventions
Not listed
Lead sponsor
Saint Louis VA Medical Center
Federal
Eligibility
18 Years to 80 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 13, 2006 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency

NCT01651000
View directory record Official record
Conditions
Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
Interventions
CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules
Drug · Other
Lead sponsor
OPKO IP Holdings II, Inc.
Industry
Eligibility
18 Years and older
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Bannockburn, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 4 Interventional Results available

Repeated-dose Safety, Efficacy, Pharmacokinetic and Pharmacodynamic of CTAP101, Immediate-release Calcifediol, High-dose Cholecalciferol, and Paricalcitol Plus Low-dose Cholecalciferol in Patients With Secondary Hyperparathyroidism, Chronic Kidney Disease 3-4 and Vitamin D Insufficiency

NCT03588884
View directory record Official record
Conditions
Secondary Hyperparathyroidism Due to Renal Causes, Vitamin D Insufficiency, CKD Stage 3, CKD Stage 4
Interventions
Calcifediol Oral Capsule, Calcifediol Oral Product, Cholecalciferol, Paricalcitol Oral Capsule
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
3
States / cities
Garden Grove, California • Chicago, Illinois • West Bend, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 9, 2022 · Synced Oct 1, 2026, 4:58 AM EDT
Terminated No phase listed Observational Results available

Study to Evaluate Safety of Vitamin D Receptor Activators in Patients Ages 0 to 16 With Chronic Kidney Disease Stage 5 Receiving Peritoneal Dialysis Within Current Clinical Practice

NCT01134315
View directory record Official record
Conditions
Secondary Hyperparathyroidism, End-Stage Renal Disease
Interventions
Paricalcitol, Calcitriol
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
Up to 16 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
18
States / cities
Birmingham, Alabama • Gainesville, Florida • Orlando, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2013 · Synced Oct 1, 2026, 4:58 AM EDT
Terminated Phase 2 Interventional Results available

Safety, Efficacy, PK and PD of CTAP101 (Calcifediol) ER Capsules for SHPT in HD Patients VDI

NCT03602261
View directory record Official record
Conditions
Secondary Hyperparathyroidism Due to Renal Causes, Chronic Kidney Diseases, Vitamin D Deficiency, Stage 5 Chronic Kidney Disease
Interventions
Calcifediol Oral Capsule, Placebo oral capsule
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
18
States / cities
Peoria, Arizona • Phoenix, Arizona • Cypress, California + 13 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2026 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 4 Interventional

Vitamin D Deficiency in Chronic Kidney Disease (CKD) Patients

NCT00958451
View directory record Official record
Conditions
Secondary Hyperparathyroidism, Chronic Kidney Disease
Interventions
Paricalcitol, Ergocalciferol
Drug
Lead sponsor
Salem Veterans Affairs Medical Center
Federal
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Salem, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 24, 2011 · Synced Oct 1, 2026, 4:58 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Phosphorus Absorption in Healthy Adults and in Patients With Moderate Chronic Kidney Disease

NCT03108222
View directory record Official record
Conditions
Chronic Kidney Disease Mineral and Bone Disorder
Interventions
Phosphorus Absorption Test
Other
Lead sponsor
Purdue University
Other
Eligibility
30 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 10, 2019 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 1Phase 2 Interventional

The Effect of Oral Niacinamide on Plasma Phosphorus Levels in Peritoneal Dialysis Patients

NCT00508885
View directory record Official record
Conditions
Hyperphosphatemia
Interventions
Niacinamide, Placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
17 participants
Timeline
2006 – 2007
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 30, 2007 · Synced Oct 1, 2026, 4:58 AM EDT
Recruiting No phase listed Observational

Precision Medicine Approaches to Renal Osteodystrophy

NCT05880914
View directory record Official record
Conditions
Renal Osteodystrophy, Chronic Kidney Diseases, CKD-MBD, Bone Turnover Rate Disorder, Secondary Hyperparathyroidism
Interventions
miRNAseq analysis, Standard treatment for bone disorder
Procedure · Drug
Lead sponsor
Thomas Nickolas
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Not applicable Interventional Results available

Cholecalciferol Versus Doxercalciferol in the Treatment of Secondary Hyperparathyroidism in Chronic Kidney Disease

NCT00285467
View directory record Official record
Conditions
Renal Osteodystrophy
Interventions
doxercalciferol, Cholecalciferol
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 82 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 2, 2016 · Synced Oct 1, 2026, 4:58 AM EDT
Terminated Phase 2 Interventional Results available

Safety & Tolerability of Cinacalcet in Pediatric Patients With Chronic Kidney Disease and Secondary Hyperparathyroidism

NCT01439867
View directory record Official record
Conditions
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Interventions
Cinacalcet hydrochloride, Standard of Care
Drug
Lead sponsor
Amgen
Industry
Eligibility
28 Days to 2189 Days
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
17
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Los Angeles, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Oct 1, 2026, 4:58 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Cinacalcet to Treat Hypercalcemia in Renal Transplant Recipients

NCT00415584
View directory record Official record
Conditions
Secondary Hyperparathyroidism, Hypercalcemia
Interventions
Cinacalcet HCl
Drug
Lead sponsor
Montefiore Medical Center
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 4 Interventional Results available

Paricalcitol Versus Calcitriol for Efficacy and Safety in Stage 3/4 Chronic Kidney Disease (CKD) With Secondary Hyperparathyroidism (SHPT)

NCT00823303
View directory record Official record
Conditions
Secondary Hyperparathyroidism, Chronic Kidney Disease
Interventions
Paricalcitol, Calcitriol
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
4
States / cities
Chicago, Illinois • Evanston, Illinois • Detroit, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2014 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 4 Interventional

CARE-2 (Calcium Acetate [PhosLo®]/Sevelamer[Renagel®] Evaluation Study 2) for Heart Calcification in Dialysis Patients

NCT00211939
View directory record Official record
Conditions
Calcinosis, Arteriosclerosis, Hyperparathyroidism, Secondary
Interventions
calcium acetate, sevelamer, atorvastatin
Drug
Lead sponsor
Nabi Biopharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 8, 2008 · Synced Oct 1, 2026, 4:58 AM EDT
Completed No phase listed Observational

Renal Osteodystrophy: A Fresh Approach

NCT00859612
View directory record Official record
Conditions
Renal Osteodystrophy
Interventions
Not listed
Lead sponsor
Hartmut Malluche, MD
Other
Eligibility
18 Years and older
Enrollment
464 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated May 5, 2017 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Safety, Tolerability, and Pharmacokinetics of VS 105

NCT03043482
View directory record Official record
Conditions
Chronic-kidney Disease Stage 5D on Stable Hemodialysis
Interventions
Single VS-105/placebo to healthy, Multiple VS-105/placebo to healthy, Multiple VS-105/placebo to HD subjects
Drug
Lead sponsor
Vidasym, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Lakewood, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 4 Interventional

A Phase 4 Study to Determine Dosing of Hectorol® Capsules When Converting From Zemplar® Injection

NCT00463021
View directory record Official record
Conditions
Secondary Hyperparathyroidism
Interventions
Hectorol (doxercalciferol capsules), Zemplar (paricalcitol injection)
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
8
States / cities
Downey, California • Paramount, California • Hudson, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated May 5, 2015 · Synced Oct 1, 2026, 4:58 AM EDT
Terminated Phase 4 Interventional Results available

Mineral Metabolism and Vascular Effects of Vitamin D Therapy in Kidney Transplant Patients

NCT00646282
View directory record Official record
Conditions
Hyperparathyroidism, Secondary
Interventions
doxercalciferol
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jan 26, 2015 · Synced Oct 1, 2026, 4:58 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency

NCT01704079
View directory record Official record
Conditions
Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
Interventions
CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules
Drug · Other
Lead sponsor
OPKO IP Holdings II, Inc.
Industry
Eligibility
18 Years and older
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Bannockburn, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced Oct 1, 2026, 4:58 AM EDT