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Showing 1–24 of 36 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hyperparathyroidism, Primary Clear all
Not listed No phase listed Observational

Percent Change in Baseline Bone Mineral Density (BMD) After Parathyroidectomy in Patients With Primary Hyperparathyroidism

NCT03052075
View directory record Official record
Conditions
Primary Hyperparathyroidism
Interventions
Retrospective Data Review
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 9, 2020 · Synced Jun 10, 2026, 3:05 PM EDT
Completed Not applicable Interventional Results available

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

NCT05152927
View directory record Official record
Conditions
Parathyroid Diseases, Parathyroid Dysfunction, Parathyroid Neoplasms, Parathyroid Adenoma, Hypercalcemia, Neoplasms, Glandular and Epithelial, Endocrine Gland Neoplasms, Adenoma, Hyperparathyroidism, Hyperparathyroidism, Primary
Interventions
Parathyroid Eye (PTeye)
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
79 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Jun 10, 2026, 3:05 PM EDT
Completed No phase listed Observational

Studies of Inherited Diseases of Metabolism

NCT00001345
View directory record Official record
Conditions
Multiple Endocrine Neoplasia
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
4 Years and older
Enrollment
969 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 19, 2023 · Synced Jun 10, 2026, 3:05 PM EDT
Recruiting No phase listed Observational

Molecular and Immunohistochemical Profiling of Tumors in Patients With Parathyroid Tumors

NCT03039439
View directory record Official record
Conditions
Parathyroid Gland Adenoma, Parathyroid Gland Atypical Adenoma, Parathyroid Gland Carcinoma, Primary Hyperparathyroidism
Interventions
Biospecimen Collection, Laboratory Biomarker Analysis
Procedure · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
310 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jun 10, 2026, 3:05 PM 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 Jun 10, 2026, 3:05 PM EDT
Recruiting Phase 4 Interventional

Calcitonin Pre-treatment to Improve SPECT-CT Sensitivity

NCT03935984
View directory record Official record
Conditions
Primary Hyperparathyroidism, Hypercalcemia
Interventions
Calcitonin
Drug
Lead sponsor
Joseph Sferra
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jun 10, 2026, 3:05 PM 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 Jun 10, 2026, 3:05 PM EDT
Completed No phase listed Observational

The Midwest Head and Neck Cancer Consortium Multi-Institutional Parathyroid Registry

NCT01409798
View directory record Official record
Conditions
Primary Hyperparathyroidism
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
6
States / cities
Iowa City, Iowa • Lawrence, Kansas • Minneapolis, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Jun 10, 2026, 3:05 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Evaluating Alternative Medical Therapies in Primary Hyperparathyroidism

NCT02525796
View directory record Official record
Conditions
Primary Hyperparathyroidism
Interventions
eplerenone, amiloride, Placebo, Cinacalcet
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2023 · Synced Jun 10, 2026, 3:05 PM EDT
Recruiting Phase 2Phase 3 Interventional

Accuracy of 18F-Fluorocholine PET/MR and NeuroEXPLORER PET/CT Imaging for Localization of Parathyroid Tumors

NCT07444723
View directory record Official record
Conditions
Primary Hyperparathyroidism, Parathyroid Cancer, Multiple Endocrine Neoplasias, Heritable Hyperparathyroidism, Hyperparathyroid-jaw Tumor Syndrome
Interventions
18F-FCH, NeuroEXPLORER
Drug · Device
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 100 Years
Enrollment
193 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2036
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jun 10, 2026, 3:05 PM 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 Jun 10, 2026, 3:05 PM EDT
Completed Phase 3 Interventional

Cinacalcet to Treat Familial Primary Hyperparathyroidism

NCT00325104
View directory record Official record
Conditions
Hypercalcemia, Familial Primary Hyperparathyroidism
Interventions
Parathyroid hormone testing, Serum calcium testing
Procedure
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jun 10, 2026, 3:05 PM EDT
Active, not recruiting No phase listed Observational

Glycemic Control, Type II Diabetes, Parathyroidectomy

NCT05761743
View directory record Official record
Conditions
Primary Hyperparathyroidism, Type 2 Diabetes
Interventions
Urine and Blood Test
Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 25, 2026 · Synced Jun 10, 2026, 3:05 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Radius Loading in Primary Hyperparathyroidism

NCT01571843
View directory record Official record
Conditions
Primary Hyperparathyroidism, Bone Diseases, Metabolic, Osteoporosis, Postmenopausal, Bone Loss, Postmenopausal
Interventions
Forearm exercise program, Walking program
Other
Lead sponsor
Columbia University
Other
Eligibility
45 Years and older · Female only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 8, 2015 · Synced Jun 10, 2026, 3:05 PM 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 Jun 10, 2026, 3:05 PM EDT
Completed Not applicable Interventional Results available

Evaluating Impact of NIRAF Detection for Identifying Parathyroid Glands During Parathyroidectomy

NCT04299425
View directory record Official record
Conditions
Parathyroid Adenoma, Parathyroid Neoplasms, Parathyroid Hyperplasia, Parathyroid Cancer, Hypercalcemia, Primary Hyperparathyroidism
Interventions
NIRAF Detection Technology
Device
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years to 99 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 12, 2024 · Synced Jun 10, 2026, 3:05 PM EDT
Withdrawn Phase 4 Interventional

The Effects of Alendronate After Cure of Primary Hyperparathyroidism

NCT00359385
View directory record Official record
Conditions
Hyperparathyroidism
Interventions
Alendronate 70mg weekly
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 15, 2011 · Synced Jun 10, 2026, 3:05 PM 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 Jun 10, 2026, 3:05 PM EDT
Completed Phase 2Phase 3 Interventional Results available

18F-Fluorocholine for the Detection of Parathyroid Adenomas

NCT03764007
View directory record Official record
Conditions
Hyperparathyroidism, Primary
Interventions
18F-Fluorocholine, Positron Emission Tomography (PET)
Drug · Procedure
Lead sponsor
Thomas Hope
Other
Eligibility
13 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 18, 2021 · Synced Jun 10, 2026, 3:05 PM EDT
Completed No phase listed Observational

Minimally Invasive Radioguided Parathyroidectomy

NCT01530919
View directory record Official record
Conditions
Primary Hyperparathyroidism
Interventions
Minimally invasive radioguided parathyroidectomy
Procedure
Lead sponsor
University of Louisville
Other
Eligibility
Not listed
Enrollment
856 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2017
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated May 3, 2017 · Synced Jun 10, 2026, 3:05 PM EDT
Completed Phase 1 Interventional

Effects of Vitamin D Replacement in Patients With Primary Hyperparathyroidism (PHPT)

NCT00538720
View directory record Official record
Conditions
Hyperparathyroidism
Interventions
Vitamin D, Four-dimensional computed tomography (4DCT)
Drug · Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
21 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 24, 2019 · Synced Jun 10, 2026, 3:05 PM EDT
Completed No phase listed Observational

Object Assessment of Improvement in Non-Specific Symptoms After Parathyroidectomy for Primary Hyperparathyroidism

NCT06337825
View directory record Official record
Conditions
Primary Hyperparathyroidism, Multinodular Goiter
Interventions
Activity Tracker (Fitbit), HbA1C, The PROMPT Questionnaire
Behavioral · Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
45 participants
Timeline
2022 – 2024
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 5, 2024 · Synced Jun 10, 2026, 3:05 PM EDT
Completed Not applicable Interventional

Omission of Intact Parathyroid Hormone Testing During Surgery in Treating Patients With Primary Hyperparathyroidism

NCT03011736
View directory record Official record
Conditions
Parathyroid Gland Adenoma, Primary Hyperparathyroidism
Interventions
Laboratory Biomarker Analysis, Parathyroidectomy
Other · Procedure
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Aug 11, 2021 · Synced Jun 10, 2026, 3:05 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Parathyroid Tumor Clonal Status

NCT05997810
View directory record Official record
Conditions
Parathyroid Tumor, Primary Hyperparathyroidism, Secondary Hyperparathyroidism (SHPT), Tertiary Hyperparathyroidism
Interventions
Not listed
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 80 Years · Female only
Enrollment
839 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2032
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Jun 10, 2026, 3:05 PM EDT