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Showing 1–24 of 156 matching trials from the live ClinicalTrials.gov search.
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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 Sep 29, 2026, 8:13 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 Sep 29, 2026, 8:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fasting Study of Metoprolol Tartrate/Hydrochlorothiazide Tablets 100/50 mg and Lopressor HCT® Tablets 100/50 mg

NCT00649688
View directory record Official record
Conditions
Healthy
Interventions
Metoprolol Tartrate/Hydrochlorothiazide Tablets 100/50 mg, Lopressor HCT® Tablets 100/50 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 4 Interventional Results available

The Blood Pressure and Metabolic Effects of Nebivolol in Hypertensive Patients With Impaired Glucose Tolerance or Impaired Fasting Glucose

NCT00673790
View directory record Official record
Conditions
Hypertension
Interventions
Nebivolol with concomitant losartan or lisinopril, HCTZ with concomitant losartan or lisinopril, Placebo with concomitant losartan or lisinopril
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 80 Years
Enrollment
537 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
88
States / cities
Athens, Alabama • Birmingham, Alabama • Huntsville, Alabama + 75 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2020 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Not applicable Interventional

Night Time Use of Thiazide Diuretics for Improved Reduction in Stone Risk in Stone Formers With Elevated Urine Calcium

NCT02711670
View directory record Official record
Conditions
Kidney Stones
Interventions
chlorthalidone, Hydrochlorothiazide
Drug
Lead sponsor
VA New York Harbor Healthcare System
Federal
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 26, 2023 · Synced Sep 29, 2026, 8:13 PM EDT
Withdrawn Phase 4 Interventional

Evaluating the Effect of Aliskiren Versus HCTZ on Coronary Flow Reserve in Hypertensive Type II Diabetics

NCT00994253
View directory record Official record
Conditions
Hypertension, Diabetes Type 2
Interventions
Aliskiren, Hydrochlorothiazide
Drug
Lead sponsor
Corewell Health East
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Oct 1, 2017 · Synced Sep 29, 2026, 8:13 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 Sep 29, 2026, 8:13 PM EDT
Terminated Phase 3 Interventional Results available

Avoiding Cardiovascular Events Through Combination Therapy in Patients Living With Systolic Hypertension

NCT00170950
View directory record Official record
Conditions
Hypertension
Interventions
Benazepril/amlodipine 20/5 mg - Dose Level 1 from Day 1 to Month 1, Benazepril/amlodipine 40/5 mg - Dose Level 2 from Month 1 to Month 2, Benazepril/amlodipine 40/10 mg - Dose Level 3 from Month 2 to Month 3 and thereafter, Benazepril/hydrochlorothiazide 20/12.5 mg - Dose Level 1 from Day 1 to Month 1, Benazepril/hydrochlorothiazide 40/12.5 mg - Dose Level 2 from Month 1 to Month 2, Benazepril/hydrochlorothiazide 40/25 mg - Dose Level 3 from Month 2 to Month 3 and thereafter
Drug
Lead sponsor
Novartis
Industry
Eligibility
55 Years and older
Enrollment
11,506 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 23, 2023 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 2 Interventional Results available

The Antihypertensives and Vascular, Endothelial and Cognitive Function Trial

NCT00605072
View directory record Official record
Conditions
Cognitive Impairment, Hypertension, Aging
Interventions
candesartan, lisinopril, hydrochlorothiazide, nifedipine, long acting, metoprolol, long-acting
Drug
Lead sponsor
University of Southern California
Other
Eligibility
60 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
2
States / cities
Los Angeles, California • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 14, 2013 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Study in Patients With Chronic Kidney Disease and Healthy Volunteers

NCT01087749
View directory record Official record
Conditions
Kidney Disease
Interventions
Propranolol, Losartan, Eprosartan
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 29, 2013 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 4 Interventional

A Randomized, Double-blind, Placebo Controlled Comparison of Telmisartan Hydrochlorothiazide (HCT) and Valsartan HCT in Hypertension (HTN) Stage I/II Patients

NCT00240448
View directory record Official record
Conditions
Hypertension
Interventions
telmisartan 80 mg/hydrochlorothiazide 25 mg, valsartan 160 mg/hydrochlorothiazide 25 mg, placebo
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
18 Years and older
Enrollment
1,109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2003
U.S. locations
100
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 90 more
Source: ClinicalTrials.gov public record
Updated Nov 4, 2013 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 3 Interventional

Efficacy and Safety of Valsartan/Amlodipine Combination in Patients With Severe Hypertension

NCT00171535
View directory record Official record
Conditions
Hypertension
Interventions
valsartan/amlodipine
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
130 participants
Timeline
2004 – 2005
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Nov 7, 2011 · Synced Sep 29, 2026, 8:13 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Chlorthalidone and HCTZ Impacts on Platelet Activation

NCT02100462
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 13, 2015 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

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

NCT00778674
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
30 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 Sep 29, 2026, 8:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Moexipril HCL/Hydrochlorothiazide 15/25 mg Tablets Under Fasting Conditions

NCT00835042
View directory record Official record
Conditions
Healthy
Interventions
Moexipril HCl/hydrochlorothiazide 15/25 mg tablets, UNIRETIC® 15/25 mg tablets
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003
U.S. locations
2
States / cities
Saint Charles, Missouri • Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 3 Interventional Results available

A Long Term Safety Study to Test the Combination of Aliskiren/ Amlodipine / Hydrochlorothiazide in Participants With Essential Hypertension

NCT00667719
View directory record Official record
Conditions
Essential Hypertension
Interventions
Aliskiren, Amlodipine, Hydrochlorothiazide
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
564 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 6, 2021 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 3 Interventional

A Clinical Study to Evaluate Safety & Efficacy of the Combination of Aliskiren, Valsartan & Hydrochlorothiazide in Diabetic Hypertensive Nonresponder Patients

NCT00219102
View directory record Official record
Conditions
Hypertension, Diabetes
Interventions
aliskiren
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
336 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Salisbury, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 10, 2020 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 4 Interventional Results available

Study of the Glycemic Effects of Nebivolol Compared With Metoprolol and HCTZ in Diabetic Hypertensive Patients

NCT00744237
View directory record Official record
Conditions
Hypertension, Type 2 Diabetes Mellitus
Interventions
Nebivolol, Metoprolol ER, HCTZ
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years to 85 Years
Enrollment
231 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2008
U.S. locations
62
States / cities
Athens, Alabama • Huntsville, Alabama • Bell Gardens, California + 54 more
Source: ClinicalTrials.gov public record
Updated Jul 28, 2011 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 3 Interventional

Safety/Efficacy of Combo Therapy With Aliskiren & Hydrochlorothiazide vs Therapy With Hydrochlorothiazide Alone in Patients With Hypertension

NCT00387517
View directory record Official record
Conditions
Hypertension
Interventions
Aliskiren/HCTZ
Drug
Lead sponsor
Novartis
Industry
Eligibility
18 Years and older
Enrollment
726 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
East Hanover, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 6, 2017 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Food Study of Metoprolol Tartrate/Hydrochlorothiazide Tablets 100/50 mg to Lopressor HCT® Tablets 100/50 mg

NCT00649233
View directory record Official record
Conditions
Healthy
Interventions
Metoprolol Tartrate/Hydrochlorothiazide Tablets 100/50 mg, Lopressor HCT® Tablets 100/50 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Azilsartan Medoxomil and Chlorthalidone Compared to Olmesartan Medoxomil and Hydrochlorothiazide in Participants With Moderate to Severe Hypertension.

NCT01033071
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Feb 6, 2012 · Synced Sep 29, 2026, 8:13 PM EDT
Completed Phase 4 Interventional Results available

An Examination of the Blood Pressure Lowering Ability and Safety of Olmesartan Medoxomil in Patients With Type II Diabetes

NCT00403481
View directory record Official record
Conditions
Hypertension
Interventions
olmesartan medoxomil, Olmesartan medoxomil plus Hydrochlorothiazide
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
18 Years and older
Enrollment
192 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
27
States / cities
Birmingham, Alabama • Mesa, Arizona • Searcy, Arkansas + 24 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced Sep 29, 2026, 8:13 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 Sep 29, 2026, 8:13 PM EDT
Completed Phase 4 Interventional Results available

An Examination of the Blood Pressure Lowering Ability and Safety of Olmesartan Medoxomil in Elderly Patients With Hypertension

NCT00412932
View directory record Official record
Conditions
Hypertension
Interventions
Olmesartan medoxomil, Olmesartan medoxomil/hydrochlorothiazide
Drug
Lead sponsor
Daiichi Sankyo
Industry
Eligibility
65 Years and older
Enrollment
178 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
29
States / cities
Birmingham, Alabama • Mesa, Arizona • Long Beach, California + 26 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2009 · Synced Sep 29, 2026, 8:13 PM EDT