A Comparison of Telmisartan + Hydrochlorothiazide With Amlodipine + Hydrochlorothiazide in the Control of Blood Pressure in Older Patients With Predominantly Systolic Hypertension (ATHOS Study)
A Comparison of Telmisartan 80 mg + Hydrochlorothiazide 12.5 mg With Amlodipine 10 mg + Hydrochlorothiazide 12.5 mg in the Control of Blood Pressure in Older Patients With Predominantly Systolic Hypertension. A Prospective, Randomised, Open-label, Blinded End-point Evaluation. (ATHOS Study)
1 other identifier
interventional
1,000
10 countries
73
Brief Summary
The primary objective of this study was test non-inferiority of telmisartan 80 mg + hydrochlorothiazide (HCTZ) 12.5 mg in comparison to amlodipine 10 mg + HCTZ 12.5 mg in reducing ambulatory systolic blood pressure (SBP) in the last 6 hours of the 24-hour dosing interval (determined by ambulatory blood pressure monitoring: ABPM) in elderly patients with predominantly systolic hypertension.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4 hypertension
Started Dec 2002
Shorter than P25 for phase_4 hypertension
73 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 1, 2002
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2004
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2004
CompletedFirst Submitted
Initial submission to the registry
October 14, 2005
CompletedFirst Posted
Study publicly available on registry
October 18, 2005
CompletedNovember 1, 2013
October 1, 2013
1.2 years
October 14, 2005
October 31, 2013
Conditions
Outcome Measures
Primary Outcomes (1)
Change from baseline in the last 6-hour mean (relative to dose time) in SBP as measured by 24-hour ABPM at the end-of-study visit
14 weeks
Secondary Outcomes (12)
Change from baseline in DBP in the last six hours of the 24-hour dose period
week 8 and 14
Change from baseline in pulse pressure (PP) in the last six hours of the 24-hour dose period
week 8 and 14
Change from baseline SBP and DBP for other time intervals ( i.e. 24-hour mean, morning mean (06:00-11:59), daytime mean (06:00-21:59), and night-time mean (22:00-05:59))
week 8 and 14
Change from baseline in patient HRQL as measured by the Psychological General Well-Being (PGWB) index.
week 8 and 14
Change from baseline in SBP in the last six hours of the 24-hour dose period (as measured by 24-hour ABPM).
8 weeks
- +7 more secondary outcomes
Interventions
Eligibility Criteria
You may qualify if:
- aged at least 60 years old
- mean SBP greater than 140 mmHg and mean DBP less than or equal to 95 mmHg
- hour mean ambulatory SBP greater than 125 mmHg
- hypertensive patients not on current antihypertensive therapy or able to stop their current treatment for a period of up to eighteen weeks
- willing and able to provide written informed consent
You may not qualify if:
- women of child-bearing potential who are NOT practicing acceptable means of birth control
- known or suspected secondary hypertension
- mean SBP equal to or greater than 200 mmHg
- hepatic and/or renal dysfunction as defined by the following laboratory parameters:
- bilateral renal artery stenosis, renal artery stenosis in a solitary kidney, patients post-renal transplant or with only one functioning kidney
- clinically relevant hypokalemia or hyperkalemia
- uncorrected volume or sodium depletion
- primary aldosteronism
- hereditary fructose intolerance
- biliary obstructive disorders
- patients who have previously experienced symptoms characteristic of angioedema during treatment with ACE inhibitors or angiotensin-II receptor antagonists
- history of drug or alcohol dependency within the previous six months
- chronic administration of any medication known to affect blood pressure, other than the trial medication
- concurrent participation in another clinical trial or any investigational therapy within thirty days prior to signing the consent form.
- symptomatic congestive heart failure (New York Heart Academy (NYHA) functional class CHF II-IV)
- +10 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (73)
A.C.Z. Antwerpen/Stuyvenberg
Antwerp, 2060, Belgium
Boehringer Ingelheim Investigational Site
Aywaille, 4920, Belgium
A.Z. VUB
Brussels, 1090, Belgium
C.H.U. Liège (Ourthe-Amblève)
Esneux, 4130, Belgium
Boehringer Ingelheim Investigational Site
Aabenraa, DK-6200, Denmark
Boehringer Ingelheim Investigational Site
Christiansfeld, DK-6070, Denmark
Boehringer Ingelheim Investigational Site
Haderslev, DK-6100, Denmark
Boehringer Ingelheim Investigational Site
Herning, DK-7400, Denmark
Boehringer Ingelheim Investigational Site
Hvidovre, DK-2650, Denmark
Boehringer Ingelheim Investigational Site
Odder, 8300, Denmark
Boehringer Ingelheim Investigational Site
Rødovre Municipality, DK-2610, Denmark
Boehringer Ingelheim Investigational Site
Vildberg, DK-7480, Denmark
Boehringer Ingelheim Investigational Site
Vildbjerg, DK-7480, Denmark
Boehringer Ingelheim Investigational Site
Vinderup, DK-7830, Denmark
Hämeenlinnan lääkäriasema Oy, Linnan klinikka
Hämeenlinna, FIN-13100, Finland
Diacor
Helsinki, FIN-00530, Finland
Kiljava Medical Research
Hyvinkää, FIN-05800, Finland
Boehringer Ingelheim Investigational Site
Jyväskylä, FIN-40100, Finland
Kouvolan lääkäriasema
Kouvola, FIN-45100, Finland
Hatanpään terveyskeskussairaala
Tampere, FIN-33100, Finland
Boehringer Ingelheim Investigational Site
Angers, France
Boehringer Ingelheim Investigational Site
Aÿ, France
Boehringer Ingelheim Investigational Site
Château Gontier Bazougues, 53200, France
Boehringer Ingelheim Investigational Site
Jarny, 54800, France
Hôpital de la Timone
Marseille, 13385, France
Boehringer Ingelheim Investigational Site
Mayenne, 53100, France
Boehringer Ingelheim Investigational Site
Berlin, 12459, Germany
Boehringer Ingelheim Investigational Site
Berlin, 13051, Germany
Boehringer Ingelheim Investigational Site
Ellefeld, 08236, Germany
Boehringer Ingelheim Investigational Site
Esslingen am Neckar, 73733, Germany
Boehringer Ingelheim Investigational Site
Flörsheim, 65439, Germany
Boehringer Ingelheim Investigational Site
Hagen, 58091, Germany
Boehringer Ingelheim Investigational Site
Hatten, 26209, Germany
Boehringer Ingelheim Investigational Site
Kelkheim, 65779, Germany
Boehringer Ingelheim Investigational Site
Leipzig, 04329, Germany
Boehringer Ingelheim Investigational Site
Marl, 45772, Germany
Boehringer Ingelheim Investigational Site
Münster, 48155, Germany
Boehringer Ingelheim Investigational Site
Nuremberg, 90402, Germany
Boehringer Ingelheim Investigational Site
Ornbau, 91737, Germany
Boehringer Ingelheim Investigational Site
Rednitzhembach, 91126, Germany
Boehringer Ingelheim Investigational Site
Riesa, 01589, Germany
Boehringer Ingelheim Investigational Site
Rodgau-Dudenhofen, 63110, Germany
Boehringer Ingelheim Investigational Site
Straßkirchen, 94342, Germany
Boehringer Ingelheim Investigational Site
Wallerfing, 94574, Germany
Boehringer Ingelheim Investigational Site
Werne, 59368, Germany
Boehringer Ingelheim Investigational Site
Westerkappeln, 49492, Germany
Deutsche Klinik für Diagnostik GmbH
Wiesbaden, 65191, Germany
Evangelisches Krankenhaus
Witten, 58455, Germany
19 Redwood View
Dublin, 24, Ireland
Adelaide and Meath Hospitals (incorrporating NCH)
Dublin, 24, Ireland
Boehringer Ingelheim Investigational Site
Dublin, 7, Ireland
Cardioperfect Research Room
Dublin, 8, Ireland
Beaumont Park Clinic
Dublin, 9, Ireland
Boehringer Ingelheim Investigational Site
Kilkenny, Ireland
Ospedale S. Luigi - S. Currò
Catania, 95100, Italy
Università di Ferrara
Ferrara, 44100, Italy
Az. Osped. Universitaria "Osp. Riuniti"
Foggia, Italy
Azienda Ospedaliera "Maggiore della Carità"
Novara, 28100, Italy
Ospedale Scillesi d'America
Scilla (rc), 89058, Italy
Ospedale Civile
Vittorio Veneto (TV), 31029, Italy
Boehringer Ingelheim Investigational Site
Beek en Donk, 5741 AR, Netherlands
Boehringer Ingelheim Investigational Site
Ewijk, 6644 CL, Netherlands
Boehringer Ingelheim Investigational Site
Musselkanaal, Netherlands
Boehringer Ingelheim Investigational Site
Oude Pekela, 9665 AR, Netherlands
Boehringer Ingelheim Investigational Site
Rijswijk, 2281 AK, Netherlands
Boehringer Ingelheim Investigational Site
Roelofarendsveen, 2371 RB, Netherlands
Boehringer Ingelheim Investigational Site
The Hague, 2585 LJ, Netherlands
Boehringer Ingelheim Investigational Site
Vaals, Netherlands
Boehringer Ingelheim Investigational Site
Voerendaal, Netherlands
Boehringer Ingelheim Investigational Site
Pretoria, 0038, South Africa
Avda. Menendez Pidal, s&n
Córdoba, 14004, Spain
Hospital Gral de Jerez de la Frontera
Jerez de La Frontera / Cádiz, 11407, Spain
Cardiology Service
Santander, 39008, Spain
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Boehringer Ingelheim Study Coordinator
BIL UK / Ireland
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
October 14, 2005
First Posted
October 18, 2005
Study Start
December 1, 2002
Primary Completion
March 1, 2004
Study Completion
March 1, 2004
Last Updated
November 1, 2013
Record last verified: 2013-10