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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Para-aminohippurate Clear all
Terminated No phase listed Observational

Vascular Dysfunction in Diabetes: Genes and Hormones

NCT01511042
View directory record Official record
Conditions
Diabetes Mellitus
Interventions
Para-aminohippuric Acid, Angiotensin II, Norepinephrine
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 8, 2022 · Synced Sep 17, 2026, 7:04 AM EDT
Active, not recruiting Phase 1 Interventional

Caveolin-1 and Vascular Dysfunction

NCT01426529
View directory record Official record
Conditions
Hypertension, Insulin Resistance
Interventions
Para-aminohippuric Acid, Angiotensin II, Norepinephrine
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 7, 2025 · Synced Sep 17, 2026, 7:04 AM EDT
Completed Phase 1Phase 2 Interventional

Impact of Metabolic Surgery on Pancreatic, Renal and Cardiovascular Health in Youth With Type 2 Diabetes

NCT03620773
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity, Bariatric Surgery Candidate, Nephropathy, Diabetic Kidney Disease, Diabetes Mellitus, Type 2, Diabetes Mellitus, Diabetes Complications, Weight Loss, Diabetic Nephropathies, Adolescent Obesity, Pediatric Obesity
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 mg/mL, Vertical Sleeve Gastrectomy, Renal Biopsy
Drug · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Sep 17, 2026, 7:04 AM EDT
Active, not recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Renal HEIR Study: Renal Hemodynamics, Energetics and Insulin Resistance in Youth Onset Type 2 Diabetes Study

NCT03584217
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity, Nephropathy, Adolescent Obesity
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 MG/ML, Renal Biopsy
Drug · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Sep 17, 2026, 7:04 AM EDT
Completed Phase 4 Interventional Results available

Mechanisms Underlying Hypotensive Response to ARB/NEP Inhibition - Aim 2

NCT04113109
View directory record Official record
Conditions
Heart Failure
Interventions
LCZ 696, Icatibant, placebo, Para-aminohippurate, Iohexol
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2025
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Sep 17, 2026, 7:04 AM EDT
Completed No phase listed Observational Results available

Renal Hemodynamics, Energetics and Insulin Resistance: A Follow-up Study

NCT05530356
View directory record Official record
Conditions
Type 2 Diabetes, Diabetes Type 2, Diabetic Nephropathies, Nephropathy, Obesity, Adolescent Obesity, Diabetic Kidney Disease
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 MG/ML, Dextran 40, Renal Biopsy, Positron Emission Tomography
Drug · Procedure · Radiation
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 26 Years
Enrollment
57 participants
Timeline
2022 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 17, 2026, 7:04 AM EDT
Terminated No phase listed Observational

Genetic Mechanisms in Human Hypertension

NCT01456208
View directory record Official record
Conditions
Hypertension
Interventions
Para-aminohippuric Acid, Angiotensin II, Norepinephrine
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 11, 2021 · Synced Sep 17, 2026, 7:04 AM EDT
Completed Phase 4 Interventional

Mechanisms Underlying Hypotensive Response to ARB/NEP Inhibition - Aim 3

NCT04649229
View directory record Official record
Conditions
Heart Failure
Interventions
LCZ 696, Placebo, Para-aminohippurate, Iohexol, Aprepitant
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Sep 17, 2026, 7:04 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Copeptin in Adolescent Participants With Type 1 Diabetes and Early Renal Hemodynamic Function

NCT03618420
View directory record Official record
Conditions
Diabetes Mellitus, Type 1, Nephropathy, Diabetic Nephropathies, Juvenile Diabetes, Diabetes Mellitus Complication, Autoimmune Diabetes, Type 1 Diabetes Mellitus
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 mg/mL
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Sep 17, 2026, 7:04 AM EDT
Active, not recruiting Phase 2 Interventional

Renal Mechanism of SGLT2 Inhibition

NCT05507892
View directory record Official record
Conditions
Type 2 Diabetes, Diabetic Kidney Disease
Interventions
canagliflozin, Aminohippurate Sodium Inj 20%
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 80 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
2
States / cities
Aurora, Colorado • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 17, 2026, 7:04 AM EDT
Completed No phase listed Observational

PErfusioN, OxyGen ConsUmptIon and ENergetics in ADPKD (PENGUIN)

NCT04407481
View directory record Official record
Conditions
Polycystic Kidney Disease, Adult, Polycystic Kidney, Autosomal Dominant
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 milligrams per milliliter (MG/ML), PET/CT Scan
Drug · Radiation
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 40 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 2, 2023 · Synced Sep 17, 2026, 7:04 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Randomized, Placebo-controlled Study to Evaluate Effects of E5555 on Renal Function Parameters and OCT2 Activity

NCT01241669
View directory record Official record
Conditions
Healthy Subjects
Interventions
E5555
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2010
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 10, 2014 · Synced Sep 17, 2026, 7:04 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Control of Renal Oxygen Consumption, Mitochondrial Dysfunction, and Insulin Resistance

NCT04074668
View directory record Official record
Conditions
Diabetic Kidney Disease, Type 1 Diabetes, Diabetes, Diabetes Mellitus, Diabetes Complications, Diabetic Nephropathies, Type1diabetes, Diabetes, Autoimmune, Autoimmune Diabetes, Juvenile Diabetes, Type 1 Diabetes Mellitus
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 milligrams/milliliter (mg/ml), PET/CT Scan, Renal Biopsy
Drug · Radiation · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 30 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Sep 17, 2026, 7:04 AM EDT
Active, not recruiting No phase listed Observational

Pathogenesis of Kidney Disease in Type 1 Diabetes: a Modern Kidney Biopsy Cohort (The PANDA Study)

NCT05319990
View directory record Official record
Conditions
Type 1 Diabetes, Diabetic Kidney Disease, Diabetes Complications, Diabetic Nephropathies, Autoimmune Diabetes
Interventions
Aminohippurate Sodium Inj 20% Diagnostic aid/agent used to measure effective renal plasma flow (ERPF), Iohexol Inj 300 MG/ML Diagnostic aid/agent used to measure glomerular filtration rate (GFR)
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Sep 17, 2026, 7:04 AM EDT
Completed No phase listed Observational

Effect of Hormone Therapy on Renal Function

NCT04482920
View directory record Official record
Conditions
Transgenderism, Kidney Diseases, Kidney Injury
Interventions
p-aminohippurate clearance study, Iohexol infusion
Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
17 Years to 30 Years
Enrollment
22 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Sep 17, 2026, 7:04 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Puberty, Diabetes, and the Kidneys, When Eustress Becomes Distress (PANTHER Study)

NCT05008276
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Diabetic Kidney Disease, Adolescent Obesity, Pre Diabetes, Kidney Hypoxia, Puberty
Interventions
Aminohippurate Sodium Inj 20%, Iohexol Inj 300 MG/ML, Dextran 40
Drug
Lead sponsor
Petter Bjornstad
Other
Eligibility
8 Years to 14 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
2
States / cities
Aurora, Colorado • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 23, 2025 · Synced Sep 17, 2026, 7:04 AM EDT
Withdrawn Not applicable Interventional

Evaluation of Lysine-Specific Demethylase 1

NCT01702688
View directory record Official record
Conditions
Hypertension
Interventions
Para-aminohippuric Acid, Angiotensin II
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Sep 17, 2026, 7:04 AM EDT
Recruiting Phase 1 Interventional

MANATEE-T1D: Metformin ANd AutomaTEd Insulin Delivery System Effects on Renal Vascular Resistance, Insulin Sensitivity, and Cardiometabolic Function in Youth With Type 1 Diabetes

NCT05065372
View directory record Official record
Conditions
Type 1 Diabetes, Diabetic Kidney Disease, Cardiovascular Diseases, Endothelial Dysfunction, Insulin Sensitivity
Interventions
Metformin Hcl 1000Mg Tab, Aminohippurate Sodium 20 % Injection, Iohexol 300 Mg/mL Injectable Solution, Placebo
Drug
Lead sponsor
Kalie Tommerdahl
Other
Eligibility
12 Years to 25 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
2
States / cities
Aurora, Colorado • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Sep 17, 2026, 7:04 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase 1, Open Label, Placebo-Controlled Study to Evaluate the Effect of GSK1349572 on Iohexol and Para-Aminohippurate Clearance in Healthy Subjects

NCT01214993
View directory record Official record
Conditions
Infections, Human Immunodeficiency Virus and Tuberculosis
Interventions
GSK1349572, Placebo, Iohexol Injection, Para-aminohippurate infusion
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 10, 2012 · Synced Sep 17, 2026, 7:04 AM EDT