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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hyperparathyroidism Clear all
Completed Phase 2 Interventional Results available

Safety, Tolerability and Efficacy of Etelcalcetide in Hemodialysis Patients With Secondary Hyperparathyroidism

NCT01254565
View directory record Official record
Conditions
Secondary Hyperparathyroidism
Interventions
Etelcalcetide, Placebo
Drug
Lead sponsor
KAI Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
13
States / cities
Azusa, California • Costa Mesa, California • Lynwood, California + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2017 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 1 Interventional

Effect of Cinacalcet on Parathyroid Hormone Secretion in Children and Adolescents With Hypophosphatemic Rickets

NCT00195936
View directory record Official record
Conditions
Hypophosphatemic Rickets, X-Linked Dominant
Interventions
Cinacalcet
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
5 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 18, 2021 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Results available

Evaluating Impact of Near Infrared Autofluorescence (NIRAF) Detection for Identifying Parathyroid Glands During Parathyroidectomy

NCT05022641
View directory record Official record
Conditions
Parathyroid Adenoma, Parathyroid Neoplasms, Parathyroid Cancer, Hypercalcemia, Primary Hyperparathyroidism
Interventions
PTeye, Standard of Care
Device · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 4 Interventional Results available

Vitamin D Repletion in Primary Hyperparathyroidism

NCT01306656
View directory record Official record
Conditions
Primary Hyperparathyroidism, Vitamin D Deficiency
Interventions
10,000 IU Vitamin D3, Placebo, Vitamin D
Drug · Other · Dietary Supplement
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 15, 2019 · Synced Jul 22, 2026, 2:06 AM EDT
Withdrawn Not applicable Interventional

Effects of Vitamin D on Renal Blood Flow, Proteinuria and Inflammation in Patients With Chronic Kidney Disease

NCT01426724
View directory record Official record
Conditions
Chronic Kidney Disease, Secondary Hyperparathyroidism
Interventions
Contrast Enhanced Ultrasonography
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 20, 2014 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

One Week Parathyroid Hormone-related Protein (PTHrP) IV Dose Escalation Study

NCT00580788
View directory record Official record
Conditions
Osteoporosis, Humoral Hypercalcemia of Malignancy, Hyperparathyroidism
Interventions
PTHrP (1-36)
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
24 Years to 35 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 10, 2016 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional

Effect of Parathyroidectomy on Sleep

NCT00501215
View directory record Official record
Conditions
Hyperparathyroidism
Interventions
Parathyroid Surgery, Telephone Interview, Polysomnography (PSG)
Procedure · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
21 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 17, 2017 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional

Optimal HCTZ Cessation for Diagnosis of Hyperparathyroidism

NCT02591160
View directory record Official record
Conditions
Hyperparathyroidism
Interventions
HCTZ cessation
Procedure
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 7, 2018 · Synced Jul 22, 2026, 2:06 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 12, 2006 · Synced Jul 22, 2026, 2:06 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Phosphate Assessment in Chronic Kidney Disease Patients Study

NCT07368946
View directory record Official record
Conditions
Chronic Kidney Disease (Stage 3-4), Chronic Kidney Disease Mineral and Bone Disorder
Interventions
Dietary Phosphorus Intake
Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 22, 2026, 2:06 AM EDT
Terminated Phase 3 Interventional Results available

Safety and Efficacy of Hectorol in Pediatric Patients With Chronic Kidney Disease Stage 3 and 4 With Secondary Hyperparathyroidism Not Yet on Dialysis

NCT02859896
View directory record Official record
Conditions
Secondary Hyperparathyroidism-Chronic Kidney Disease
Interventions
Doxercalciferol (GZ427397), Calcitriol
Drug
Lead sponsor
Sanofi
Industry
Eligibility
5 Years to 18 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2025
U.S. locations
21
States / cities
Birmingham, Alabama • Los Angeles, California • Sacramento, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Results available

Studies of Elevated Parathyroid Activity

NCT00001277
View directory record Official record
Conditions
Hyperparathyroidism, Hypercalcemia, Parathyroid Neoplasm, Multiple Endocrine Neoplasia, MEN1
Interventions
68Ga-Dotatate, 18F-DOPA
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
2 Months and older
Enrollment
1,553 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 6, 2022 · Synced Jul 22, 2026, 2:06 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 24, 2025 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 1 Interventional

EC17 for Intraoperative Imaging for Parathyroidectomy

NCT01996072
View directory record Official record
Conditions
Primary Hyperparathyroidism
Interventions
EC17
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 2, 2018 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 2 Interventional

Safety Study of CTA018 Injection to Treat Stage 5 Chronic Kidney Disease

NCT00742716
View directory record Official record
Conditions
Chronic Kidney Disease, Secondary Hyperparathyroidism, Chronic Renal Insufficiency, Chronic Renal Failure
Interventions
CTA018 Injection
Drug
Lead sponsor
OPKO IP Holdings II, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
5
States / cities
Pembroke Pines, Florida • Meridian, Idaho • Springfield, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2014 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 1 Interventional

Pharmacokinetics and Safety Pilot Study of Single-Dose Oral and Intravenous CTAP101 in Stage 3 and 4 Chronic Kidney Disease Subjects

NCT00888069
View directory record Official record
Conditions
Chronic Kidney Disease, Secondary Hyperparathyroidism, Chronic Renal Insufficiency, Chronic Renal Failure
Interventions
CTAP101 Capsules, CTAP101 Injection
Drug
Lead sponsor
OPKO IP Holdings II, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
12
States / cities
Peoria, Arizona • Evergreen Park, Illinois • Springfield, Massachusetts + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 29, 2014 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioequivalency Study of Calcitriol Tablets Under Fasting Conditions

NCT00601328
View directory record Official record
Conditions
Secondary Hyperparathyroidism, Hypocalcemia
Interventions
Calcitriol
Drug
Lead sponsor
Roxane Laboratories
Industry
Eligibility
18 Years to 45 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003
U.S. locations
1
States / cities
Springfield, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Renin-Angiotensin-Aldosterone System and Parathyroid Hormone Control: The RAAS-PARC Study

NCT01691781
View directory record Official record
Conditions
Hyperparathyroidism
Interventions
Lisinopril
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 20, 2017 · Synced Jul 22, 2026, 2:06 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 28, 2020 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 2 Interventional

A Phase 2A Dose-ranging and Pharmacokinetic Study of an Oral Vitamin D Compound (DP001) in Secondary Hyperparathyroidism

NCT01653379
View directory record Official record
Conditions
Secondary Hyperparathyroidism
Interventions
DP001
Drug
Lead sponsor
Deltanoid Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
6
States / cities
Tucson, Arizona • Tustin, California • Denver, Colorado + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 15, 2017 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 4 Interventional

Study to Evaluate the Effects of Zemplar Injection and Calcijex on Intestinal Absorption of Calcium

NCT00073710
View directory record Official record
Conditions
Secondary Hyperparathyroidism, Chronic Kidney Disease
Interventions
Zemplar, 42 Ca carbonate absorption via single tracer method, Calcijex
Drug · Procedure
Lead sponsor
Abbott
Industry
Eligibility
20 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Aug 1, 2006 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Sevelamer and Secondary Hyperparathyroidism in Chronic Kidney Disease

NCT01191762
View directory record Official record
Conditions
Hyperparathyroidism, Chronic Kidney Disease
Interventions
sevelamer carbonate, placebo
Drug
Lead sponsor
Kenneth R. Phelps, M.D.
Individual
Eligibility
18 Years to 120 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Oct 31, 2016 · Synced Jul 22, 2026, 2:06 AM EDT
Completed No phase listed Observational

Informed Consent for Whole Genome Sequencing: Ideals and Norms Referenced by Early Participants

NCT01369953
View directory record Official record
Conditions
Coronary Artery Disease, Proteus Syndrome, Coffin - Sins Syndrome, Familial Isolated Hyperparathyroidism, Dubouitz Syndrome
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 25, 2018 · Synced Jul 22, 2026, 2:06 AM EDT
Completed Phase 2Phase 3 Interventional

Comparison of Two Methods of Parathyroidectomy for Primary Hyperparathyroidism

NCT00006329
View directory record Official record
Conditions
Hyperparathyroidism
Interventions
Minimally invasive radioguided parathyroidectomy
Procedure
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
12 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 22, 2026, 2:06 AM EDT