ClinicalTrials.gov record
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)
ClinicalTrials.gov ID: NCT00274638
Public ClinicalTrials.gov record NCT00274638. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Prospective, Randomised, Open-Label, Blinded-Endpoint, Parallel Group 6-week Treatment Study Comparing Telmisartan Combined With Hydrochlorothiazide (40 mg/12.5 mg or 80 mg/12.5 mg) Tablets With Losartan Combined With Hydrochlorothiazide (50 mg/12.5 mg) Tablets Using Ambulatory Blood Pressure Monitoring in Patients With Mild-to-Moderate Hypertension
Study identification
- NCT ID
- NCT00274638
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Lead sponsor
- Boehringer Ingelheim
- Industry
- Enrollment
- 805 participants
Conditions and interventions
Conditions
Interventions
- ABPM Procedure
- Losartan & Hydrochlorothiazide Drug
- Telmisartan & Hydrochlorothiazide Drug
Procedure · Drug
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 30, 2002
- Primary completion
- Jun 30, 2003
- Completion
- Not listed
- Last update posted
- Dec 8, 2013
Started 2002
United States locations
- U.S. sites
- 69
- U.S. states
- 26
- U.S. cities
- 60
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Boehringer Ingelheim Investigational Site | Huntsville | Alabama | — | — |
| Research Solutions, LLC | Little Rock | Arkansas | — | — |
| Boehringer Ingelheim Investigational Site | Carmichael | California | — | — |
| Boehringer Ingelheim Investigational Site | Concord | California | — | — |
| Sierra Medical Research | Fresno | California | — | — |
| Attn: Ginger Paselk | Long Beach | California | — | — |
| Boehringer Ingelheim Investigational Site | Orange | California | — | — |
| DeBruin Medical Center | Orangevale | California | — | — |
| Clinical Trials Research | Roseville | California | — | — |
| Dr. R. David Ferrera | Sacramento | California | — | — |
| Westlake Medical Research | Westlake Village | California | — | — |
| Rocky Mountain Pulmonary & Critical Care Medicine, Inc. | Wheat Ridge | Colorado | — | — |
| Clinical Research Consultants, Inc. | Trumbull | Connecticut | — | — |
| Glasgow Family Pract6ice | Newark | Delaware | — | — |
| Boehringer Ingelheim Investigational Site | Coral Gables | Florida | — | — |
| Miami Research Associates | Coral Gables | Florida | — | — |
| Patron, Andres, D.O. | Hollywood | Florida | — | — |
| Christopher Chappel, MD | Kissimmee | Florida | — | — |
| Boehringer Ingelheim Investigational Site | Melbourne | Florida | — | — |
| Orlando Clinical Research Center | Orlando | Florida | — | — |
| Attention: Larry I. Gilderman, D.O. | Pembroke Pines | Florida | — | — |
| nTouch Research | St. Petersburg | Florida | — | — |
| Tampa Medical Research Associates | Tampa | Florida | — | — |
| Southern Clinical Research and Management, Inc. | Augusta | Georgia | — | — |
| Boehringer Ingelheim Investigational Site | Conyers | Georgia | — | — |
| Treasure Valley Cardiology | Boise | Idaho | — | — |
| Cedar-Crosse Research Center | Chicago | Illinois | — | — |
| Herron Medical Center, Ltd. | Chicago | Illinois | — | — |
| Protococare Trials, Inc. | Elk Grove Village | Illinois | — | — |
| N Touch Research | Peoria | Illinois | — | — |
| Midwest Institute for Clinical Research Inc. | Indianapolis | Indiana | — | — |
| Radiant Research | Overland | Kansas | — | — |
| Ong Medical Center | Oxon Hill | Maryland | — | — |
| Radiant Research | Edina | Minnesota | — | — |
| Cardiology Research | Saint Paul | Minnesota | — | — |
| Attention: Mel E. Lucas, DO | Florissant | Missouri | — | — |
| New Mexico Clinical Reaearch & Osteoporosis Center, Inc. | Albuquerque | New Mexico | — | — |
| Syracuse Preventative Cardiology | Syracuse | New York | — | — |
| Great Lakes Medical Research | Westfield | New York | — | — |
| Cardiology and Internal Medicine- Williamsville NY | Williamsville | New York | — | — |
| Comprehensive Clinical Research | Bina | North Carolina | — | — |
| Bennett Cardiac Center | Charlotte | North Carolina | — | — |
| Charlotte Clinical Research | Charlotte | North Carolina | — | — |
| Boehringer Ingelheim Investigational Site | Raleigh | North Carolina | — | — |
| nTouch Research Corporation | Raleigh | North Carolina | — | — |
| Piedmont Research Associates | Winston-Salem | North Carolina | — | — |
| Wake Forest University School of Medicine | Winston-Salem | North Carolina | — | — |
| Boehringer Ingelheim Investigational Site | Cincinnati | Ohio | — | — |
| Radiant Reseach | Cincinnati | Ohio | — | — |
| Radiant Research | Columbus | Ohio | — | — |
| Boehringer Ingelheim Investigational Site | Oklahoma City | Oklahoma | — | — |
| nTouch | Oklahoma City | Oklahoma | — | — |
| Hillcrest Medical Center | Tulsa | Oklahoma | — | — |
| Bock Clinical Research | Collegeville | Pennsylvania | — | — |
| Bock Clinical Research | Downingtown | Pennsylvania | — | — |
| Bock Clinical Research | Harleysville | Pennsylvania | — | — |
| The Western Pennsylvania Hospital | Pittsburgh | Pennsylvania | — | — |
| Omega Research | Warwick | Rhode Island | — | — |
| University of Tennessee Medical Center | Knoxville | Tennessee | — | — |
| Veterans Affairs Medical Center | Memphis | Tennessee | — | — |
| Clinical Research Associates, Inc. | Nashville | Tennessee | — | — |
| Boehringer Ingelheim Investigational Site | Dallas | Texas | — | — |
| nTouch Research | Houston | Texas | — | — |
| Hampton Roads Medical Specialists | Hampton | Virginia | — | — |
| 885 Kempsville Road, Suite 221 | Norfolk | Virginia | — | — |
| York Clinical Research | Norfolk | Virginia | — | — |
| Boehringer Ingelheim Investigational Site | Richmond | Virginia | — | — |
| Gemini Scientific | Madison | Wisconsin | — | — |
| University of Wisconsin Medical School | Madison | Wisconsin | — | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00274638, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 8, 2013 · Synced May 14, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00274638 live on ClinicalTrials.gov.