Independent directory Public ClinicalTrials.gov records United States
Clear filters
ClinicalTrials.gov public records Last synced Sep 8, 2026, 9:28 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Hypertension, Self-Management, Technology, Quality of Life
Interventions
OPTIMA-BP Intervention
Behavioral
Lead sponsor
Case Western Reserve University
Other
Eligibility
50 Years and older
Enrollment
208 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Cleveland, Ohio
Conditions
Hypertension
Interventions
Azilsartan medoxomil with or without add-on chlorthalidone, Azilsartan medoxomil with or without add-on hydrochlorothiazide
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
669 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
39
States / cities
Ozark, Alabama • Tallassee, Alabama • Long Beach, California + 36 more
Conditions
Essential Hypertension, Older Adults
Interventions
chlorthalidone, Placebo
Drug · Other
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
60 Years to 85 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Dallas, Texas
Terminated Phase 2 Interventional Results available

Safety and Efficacy of Chlorthalidone in Type 1 Diabetes

NCT03325114
Conditions
Type 1 Diabetes Mellitus, Hypercalciuria
Interventions
Chlorthalidone
Drug
Lead sponsor
University of Rochester
Other
Eligibility
12 Years to 21 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, New York
Conditions
Hypertension
Interventions
Chlorthalidone 12.5 mg, Hydrochlorothiazide 25 mg, Placebo
Drug
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Omaha, Nebraska
Conditions
Hypertension
Interventions
Study#1: chlorthalidone (CTD), titrated dose, Study #1: spironolactone (SP), titrated dose, Study# 2 chlorthalidone (CTD), fixed dose, Study# 2 spironolactone (SP), fixed dose, Study# 2 irbsesartan (IR), fixed dose
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
166 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2013
U.S. locations
2
States / cities
Dallas, Texas
Terminated Phase 2 Interventional Accepts healthy volunteers

Hypertension in Young Adults Trial

NCT05370599
Conditions
Hypertension
Interventions
Anti-hypertensive agent: amlodipine, Anti-hypertensive agent: Chlorthalidone, Anti-hypertensive agent: Losartan, Home BP monitoring with cuffed device, Home BP monitoring with cuffed device + BP patch, Home BP monitoring with cuffed device + BP watch
Drug · Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 40 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
San Francisco, California
Conditions
Hypertension
Interventions
Amlodipine, Chlorthalidone, Losartan
Drug
Lead sponsor
Anthony J Viera, MD, MPH
Other
Eligibility
30 Years to 65 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Conditions
Essential Hypertension
Interventions
Azilsartan medoxomil and chlorthalidone, Azilsartan medoxomil and hydrochlorothiazide
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
609 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
50
States / cities
Birmingham, Alabama • Gulf Shores, Alabama • Scottsboro, Alabama + 47 more
Completed Phase 2 Interventional Results available

Chlorthalidone in Chronic Kidney Disease

NCT02841280
Conditions
Renal Insufficiency, Chronic, Hypertension
Interventions
Chlorthalidone, Placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
Indianapolis, Indiana
Not listed Phase 4 Interventional Accepts healthy volunteers

Chlorthalidone and HCTZ Impacts on Platelet Activation

NCT02100462
Conditions
Hypertension
Interventions
Chlorthalidone 12.5 mg, Hydrochlorothiazide 25 mg, Aspirin 81 mg
Drug
Lead sponsor
Creighton University
Other
Eligibility
19 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Omaha, Nebraska
Recruiting Not applicable Interventional

Arterial Stiffness and Blood Pressure

NCT06495710
Conditions
Hypertension, Vascular Stiffness, Aging
Interventions
Blood pressure treatment algorithm
Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years and older
Enrollment
228 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
3
States / cities
Birmingham, Alabama • Nashville, Tennessee • Madison, Wisconsin
Conditions
Hypertension, Left Ventricular Hypertrophy
Interventions
Eplerenone, Chlorthalidone, Potassium
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 75 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Conditions
Hypertension
Interventions
Azilsartan medoxomil and chlorthalidone, Chlorthalidone, Azilsartan medoxomil
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
1,711 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
84
States / cities
Birmingham, Alabama • Columbiana, Alabama • Tuscaloosa, Alabama + 81 more
Conditions
Essential Hypertension
Interventions
Azilsartan medoxomil and chlorthalidone, Olmesartan medoxomil-hydrochlorothiazide
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
1,085 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
70
States / cities
Birmingham, Alabama • Haleyville, Alabama • Hueytown, Alabama + 67 more
Conditions
Essential Hypertension
Interventions
Azilsartan medoxomil and chlorthalidone, Olmesartan medoxomil and hydrochlorothiazide
Drug
Lead sponsor
Takeda
Industry
Eligibility
18 Years and older
Enrollment
1,071 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
84
States / cities
Gulf Shores, Alabama • Litchfield Park, Arizona • Mesa, Arizona + 81 more
Completed Phase 3 Interventional Results available

Diuretic Comparison Project

NCT02185417
Conditions
Hypertension
Interventions
Hydrochlorothiazide (HCTZ), Chlorthalidone (CTD)
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
65 Years and older
Enrollment
20,723 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
69
States / cities
Birmingham, Alabama • Anchorage, Alaska • Fayetteville, Arkansas + 64 more
Conditions
Resistant Hypertension in Kidney Transplant Patients
Interventions
Chlorthalidone
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Richmond, Virginia