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Showing 1–24 of 156 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Hydrochlorothiazide Clear all
Completed Phase 4 Interventional Results available

Effect of Renin-angiotensin-system Blockade on Urinary Free Light Chains in Patients With Type 2 Diabetes Mellitus

NCT02046395
View directory record Official record
Conditions
Type 2 Diabetes, Hypertension
Interventions
amlodipine, hydralazine, terazosin or hydrochlorothiazide
Drug
Lead sponsor
Tulane University School of Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

8-week Study to Evaluate Safety and Efficacy of Various Combinations of Valsartan, HCTZ, and Amlodipine in Patients With Moderate to Severe Hypertension

NCT00327587
View directory record Official record
Conditions
Hypertension
Interventions
Valsartan + amlodipine, Valsartan + HCTZ, Amlodipine + HCTZ, Valsartan + amlodipine + HCTZ
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years to 85 Years
Enrollment
2,279 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 7, 2011 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 4 Interventional Results available

The Effects of Renin Inhibition on Fibrinolytic Balance and Endothelial Function

NCT03115853
View directory record Official record
Conditions
High Blood Pressure
Interventions
Aliskiren 150 mg, Placebo, HCTZ, Aliskiren 300 mg
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 65 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 24, 2017 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 3 Interventional

Combination of Nebivolol and Valsartan Given as Free Tablets for Stage 1 or Stage 2 Hypertension

NCT01415505
View directory record Official record
Conditions
Hypertension
Interventions
Nebivolol, Valsartan and Hydrochlorothiazide
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
812 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
135
States / cities
Birmingham, Alabama • Foley, Alabama • Gulf Shores, Alabama + 113 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2013 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Not applicable Interventional Results available

Series of N-of-1 Crossover Trials of Antihypertensive Therapy in Adolescents With Essential Hypertension

NCT02412761
View directory record Official record
Conditions
Essential Hypertension
Interventions
Lisinopril, Amlodipine, Hydrochlorothiazide
Drug
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
9 Years to 22 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 14, 2018 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Losartan Potassium/Hydrochlorothiazide 100/25 mg Tablets in Healthy Subjects Under Fasting Conditions

NCT01149486
View directory record Official record
Conditions
Healthy
Interventions
Losartan potassium/Hydrochlorothiazide, Hyzaar®
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Dec 7, 2010 · Synced Jul 24, 2026, 3:02 PM EDT
Completed No phase listed Observational

Genetic Epidemiology of Responses to Antihypertensives

NCT00005520
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Diseases, Hypertension
Interventions
Hydrochlorothiazide, Candesartan
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 60 Years
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2008
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 16, 2013 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 4 Interventional Results available

Telmisartan 80mg Plus Hydrochlorothiazide 25mg First Line in Moderate or Severe Hypertension

NCT00926289
View directory record Official record
Conditions
Hypertension
Interventions
Telmisartan, Hydrochlorothiazide
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
894 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2009
U.S. locations
18
States / cities
Athens, Alabama • Mobile, Alabama • Lomita, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2014 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug to Drug Interaction Study of Sotagliflozin With Hydrochlorothiazide

NCT03387657
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Sotagliflozin (SAR439954), Hydrochlorothiazide
Drug
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Apr 24, 2022 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Crossover Bioequivalence Study of Irbesartan HCTZ 300/25 mg Tablets Under Fasted Conditions

NCT01712139
View directory record Official record
Conditions
Hypertension
Interventions
Irbesartan and Hydrochlorothiazide, Avalide
Drug
Lead sponsor
Roxane Laboratories
Industry
Eligibility
18 Years to 45 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 22, 2018 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 4 Interventional

PROBE Parallel 6-week Treatment Comparing Telmisartan/Hydrochlorothiazide (HCT) (40/12.5 or 80/12.5) With Losartan/HCT (50/12.5) Using Ambulatory Blood Pressure Monitoring (ABPM)

NCT00274638
View directory record Official record
Conditions
Hypertension
Interventions
Telmisartan & Hydrochlorothiazide, Losartan & Hydrochlorothiazide, ABPM
Drug · Procedure
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
805 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
69
States / cities
Huntsville, Alabama • Little Rock, Arkansas • Carmichael, California + 57 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2013 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 2 Interventional Results available

The SCCS Polypill Pilot Trial

NCT02278471
View directory record Official record
Conditions
Hypertension, Hyperlipidemia
Interventions
Polypill (atorvastatin, amlodipine, losartan, and hydrochlorothiazide)
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
45 Years to 75 Years
Enrollment
303 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Mobile, Alabama
Source: ClinicalTrials.gov public record
Updated May 13, 2021 · Synced Jul 24, 2026, 3:02 PM EDT
Withdrawn Not applicable Interventional

The Pleiotropic Effects of Atorvastatin When Combined With Common Antihypertenisve Medications.

NCT00656331
View directory record Official record
Conditions
Hypertension
Interventions
Amlodipine and Hydrocholorothiazide
Drug
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Jul 24, 2026, 3:02 PM EDT
Completed No phase listed Observational

ACEI or ARB and COVID-19 Severity and Mortality in US Veterans

NCT04467931
View directory record Official record
Conditions
Hypertension, COVID
Interventions
ACEI/ARB, Non-ACEI/ARB, ACEI, ARB
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
22,213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 3 Interventional

Irbesartan/Hydrochlorothiazide (HCTZ) Combination Therapy as First Line Treatment for Severe Hypertension

NCT00095394
View directory record Official record
Conditions
Hypertension
Interventions
Irbesartan/HCTZ, Irbesartan monotherapy
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
645 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
156
States / cities
Birmingham, Alabama • Columbiana, Alabama • Huntsville, Alabama + 153 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2011 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 4 Interventional Results available

Metabolic Effects of Antihypertensive Drugs on People With Metabolic Syndrome (The MEAD Study)

NCT00887510
View directory record Official record
Conditions
Hypertension
Interventions
Hydrochlorothiazide, Trandolapril
Drug
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 16, 2014 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 2 Interventional Results available

Effects of Dapagliflozin on Kidney Function (Glomerular Filtration Rate) in Subjects With Type 2 Diabetes

NCT00976495
View directory record Official record
Conditions
Type 2 Diabetes Mellitus
Interventions
Dapagliflozin, Placebo, Hydrochlorothiazide
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 70 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
9
States / cities
Anaheim, California • Lomita, California • Miami, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2017 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Losartan Potassium/Hydrochlorothiazide 100/25 mg Tablets in Healthy Subjects Under Non-Fasting Conditions

NCT01149473
View directory record Official record
Conditions
Healthy
Interventions
Losartan potassium/Hydrochlorothiazide
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 4 Interventional Results available

Black Education and Treatment of Hypertension (BEAT HTN)

NCT00661895
View directory record Official record
Conditions
Hypertension
Interventions
Hydrochlorothiazide, Lisinopril, Lisinopril and Hydrochlorothiazide, Nifedipine XL, Metoprolol tartrate, Atenolol, Valsartan, Doxazosin, Clonidine, Hydralazine, Metoprolol succinate, Amlodipine
Drug
Lead sponsor
Creighton University
Other
Eligibility
25 Years to 80 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 3, 2012 · Synced Jul 24, 2026, 3:02 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Anxiety-mediated Impairments in Large Elastic Artery Function and the Autonomic Nervous System

NCT03109795
View directory record Official record
Conditions
Anxiety, Hypertension
Interventions
Clonidine Pill, Hydrochlorothiazide
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years to 79 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 28, 2024 · Synced Jul 24, 2026, 3:02 PM EDT
Terminated Phase 3 Interventional Results available

Study to Evaluate Symptoms in Patients Treated With Nebivolol or Metoprolol Extended-release (ER) for Hypertension

NCT00547300
View directory record Official record
Conditions
Hypertension
Interventions
Metoprolol ER, Nebivolol
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 80 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
24
States / cities
Birmingham, Alabama • Beverly Hills, California • Encinitas, California + 21 more
Source: ClinicalTrials.gov public record
Updated May 20, 2019 · Synced Jul 24, 2026, 3:02 PM EDT
Recruiting Phase 4 Interventional

Treatment of Meniere's Disease With Migraine Medications

NCT05582837
View directory record Official record
Conditions
Ménière
Interventions
nortriptyline + topiramate
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
25 Years to 85 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Phase 4 Interventional Results available

18 Week Study Evaluating Safety and Efficacy of Olmesartan, Amlodipine, and Hydrochlorothiazide, in Type 2 Diabetics

NCT00654745
View directory record Official record
Conditions
Type 2 Diabetes, Hypertension
Interventions
Amlodipine, amlodipine / olmesartan medoxomil combination, Hydrochlorothiazide
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years to 80 Years
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
21
States / cities
Los Angeles, California • Sylmar, California • Tustin, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2010 · Synced Jul 24, 2026, 3:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioequivalence Study of Benazepril HCl / Hydrochlorothiazide 20 mg/ 25 mg Tablets Under Fasting Conditions

NCT00778726
View directory record Official record
Conditions
Healthy
Interventions
Benazepril HCl/ Hydrochlorothiazide 20 mg/ 25 mg Tablets
Drug
Lead sponsor
Ranbaxy Laboratories Limited
Industry
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 22, 2008 · Synced Jul 24, 2026, 3:02 PM EDT