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PROBE Investigation of the Safety & Efficacy of Telmisartan (Micardis®) vs Ramipril (Altace®) Using ABPM in HTN

A Prospective, Randomised, Open-Label, Blinded-Endpoint, Parallel Group, Multicentre, Forced-Titration, 14-Week Treatment Study Comparing MICARDIS® (Telmisartan 40-80-80 mg, QD) and ALTACE® (Ramipril 2.5-5-10 mg, QD) in Patients With Mild-to-Moderate Hypertension Using Ambulatory Blood Pressure Monitoring

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00274599
Enrollment
812
Registered
2006-01-11
Start date
2002-10-09
Completion date
Unknown
Last updated
2023-12-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hypertension

Brief summary

Demonstrate that telmisartan 80mg was at least as effective and possibly superior to ramipril 5mg & 10mg in lowering mean ambulatory DBP and SBP during the last 6 hrs of the 24-hr dosing interval in mild-to-moderate hypertensives at the end of 8 and 14 week treatment phases.

Interventions

DRUGTelmisartan
DRUGRamipril

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
19 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Ability to provide written informed consent in accordance with Good Clinical Practice (GCP) and local legislation. * Mild-to-moderate hypertension defined as a mean seated diastolic blood pressure of ≥95 mmHg and ≤109 mmHg, measured by manual cuff sphygmomanometer at Visit 2. * Age 18 years or older (or 19 years if dictated by local State/Province policies). * Ability to stop any current antihypertensive therapy without risk to the patient (investigator's discretion). * 24-hour mean DBP of ≥85 mmHg at Visit 3 as measured by Ambulatory Blood Pressure Monitoring (ABPM).

Exclusion criteria

* Pre-menopausal women (last menstruation ≤1 year prior to signing informed consent) who: * were not surgically sterile; or * were nursing, or * were of childbearing potential and were NOT practicing acceptable methods of birth control, or did NOT plan to continue practicing an acceptable method throughout the study. Acceptable methods of birth control included IUD, oral, implantable or injectable contraceptives. No exceptions were made. * Night shift workers who routinely slept during the daytime and whose work hours included midnight to 4:00 a.m. * Mean seated SBP ≥180 mmHg or mean seated DBP ≥110 mmHg during any visit of the placebo run-in period. * Known or suspected secondary hypertension (e.g., phaeochromocytoma). * Hepatic and/or renal dysfunction as defined by the following laboratory parameters: * Serum Glutamate-Oxaloacetate-Transaminase (Aspartate Aminotransferase) (SGOT (AST)) or Serum Glutamate-Pyruvate-Transaminase (Alanine Aminotransferase) (SGPT (ALT)) \>2 times the upper limit of normal range, or * Serum creatinine \>2.3 mg/dL (or \>203 μmol/l). * Bilateral renal artery stenosis, renal artery stenosis in a solitary kidney, post-renal transplant patients or patients with only one kidney. * Clinically relevant sodium depletion, hypokalaemia or hyperkalaemia. * Uncorrected volume depletion. * Further

Design outcomes

Primary

MeasureTime frame
Change from baseline in the last 6-hr mean DBP & SBP as measured by ABPM at the end of and 8-wk treatment period (T80 vs R5 mg) and 14-wk treatment period (T80 vs R10 mg)Up to week 14

Secondary

MeasureTime frame
Change from baseline in last 6-hr ABPM mean for: pulse pressure; DBP, SBP and PP; DBP/SBP/PP in the morning, daytime and nighttime periods of the 24-hr dosing interval; Change from baseline in mean, seated, trough DBP & SBP measured by manual cuffUp to week 14

Countries

Canada, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026