Prospective, Randomized, Open-label, Blinded Endpoint, Forced Titration Study to Compare Telmisartan Combined With HCTZ (80mg/12.5mg), to Valsartan Combined With HCTZ (160mg/12.5mg), for the Control of Mild-to-moderate Hypertension in Obese Patients With Type 2 Diabetes Mellitus Using ABPM.
- NCT00239538
- PHASE4
- INTERVENTIONAL
Last updated: 2013-11-08
Purpose of Trial
Methodology:
Prospective, randomised, open-label, blinded end-point, forced-titration, parallel group comparison using Ambulatory Blood Pressure Monitoring (ABPM).
Planned/Actual Number of Subjects:
Enrolled: 1500/2085; Randomised: 750/840; Complete: 680/752
Diagnosis and Main Criteria for Inclusion:
1) Mild-to-moderate hypertension defined as a baseline mean seated cuff DBP of 95 - 109 (inclusive) mmHg, and/or SBP of 140-179 (inclusive) mmHg, and a baseline 24-hour ABPM mean DBP \>= 85 mmHg, and/or SBP \>= 130 mmHg. 2) Overweight or obese as defined by a Body Mass Index (BMI) \>= 27 kg/m2 in non-Asians and \>= 24 kg/m2 in Asians 3) Type-2 diabetes mellitus. 4) At least 30 years of age.
Duration of Treatment:
10 weeks total: telmisartan (80 mg) or valsartan (160 mg) for 4 weeks followed by telmisartan (80 mg) plus hydrochlorothiazide (12.5 mg) or valsartan (160 mg) plus hydrochlorothiazide (12.5 mg) for an additional 6 weeks.
Criteria for Efficacy:
Primary Endpoint:
Reductions in blood pressure during the last 6 hours of the 24-hour dosing interval as measured by ABPM. The primary analysis will consist of comparing telmisartan combined with hydrochlorothiazide 80 mg/12.5 mg to valsartan combined with hydrochlorothiazide 160 mg/12.5 mg at the end of the 10-week study using a closed testing procedure first testing for non-inferiority based on SBP; if significant, testing for non-inferiority based on DBP; if significant, testing for superiority based on SBP; and if significant, testing for superiority based on DBP.
Secondary Endpoints:
Statistically greater reductions in ambulatory blood pressure for patients treated with telmisartan combined with hydrochlorothiazide 80 mg/12.5 mg compared to patients treated with valsartan combined with hydrochlorothiazide 160 mg/12.5 mg at the end of the 10-week study as measured by: 1) Changes from baseline in the last 6 hours of the 24-hour dosing interval for pulse pressure; 2) Changes from baseline in the 24-hour ABPM mean (relative to dose time) for SBP, DBP, and pulse pressure; 3) Changes from baseline in the ABPM mean SBP, DBP, and pulse pressure (relative to clock time) during other periods (i.e., morning, daytime, night time) of the 24-hour dosing interval; 4) Change from baseline in systolic and diastolic blood pressure load during the 24-hour dosing interval; and 5) Percentage of patients responding to treatment based on the 24-hour ABPM mean SBP and DBP (relative to dose time).
Statistically greater reduction in mean seated trough blood pressure patients treated with telmisartan combined with hydrochlorothiazide 80 mg/12.5 mg compared to patients treated with valsartan combined with hydrochlorothiazide 160 mg/12.5 mg at the end of the 10-week study as measured by: 1) Changes from baseline in mean seated trough SBP and DBP as determined by electronic or manual device in-clinic; and 2) Percentage of patients responding to treatment based on electronic or manual in-clinic trough cuff blood pressures.
Evaluation of other endpoints comparing telmisartan combined with hydrochlorothiazide 80 mg/12.5 mg to valsartan combined with hydrochlorothiazide 160 mg/12.5 mg, respectively, including: 1) Changes from baseline in metabolic markers: serum TG, LDL-C, HDL-C, total cholesterol, potassium, fasting glucose and HbA1C, and for urine: Na, K, Cl, proteinuria (as measured by spot urine for protein:creatinine ratio); and 2) inflammatory markers: serum high sensitive C-reactive protein, serum homocysteine and plasma fibrinogen.
Criteria for Safety:
Evaluation of adverse events, physical examinations, laboratory assessments, pulse rate and cuff blood pressure monitoring.
Statistical Method:
Analysis of covariance with treatment and centre as main effects and baseline as a covariate; Mantel-Haenszel test controlling for centre.
Study Hypothesis:
Null Hypothesis:
The overall mean change from baseline in the automated blood pressure monitor mean blood pressure during the last 6 hours of the 24-hour dosing interval for telmisartan (80 mg) plus hydrochlorothiazide (12.5 mg) is less than or equal to that for valsartan (160 mg) plus hydrochlorothiazide (12.5 mg).
Alternative Hypothesis:
The overall mean change from baseline in the automated blood pressure monitor mean blood pressure during the last 6 hours of the 24-hour dosing interval for telmisartan (80 mg) plus hydrochlorothiazide (12.5 mg) is greater than that for valsartan (160 mg) plus hydrochlorothiazide (12.5 mg).
Comparison(s):
Telmisartan (80 mg) plus hydrochlorothiazide (12.5 mg) vs. valsartan (160 mg) plus hydrochlorothiazide (12.5 mg)
This study is for people with
Hypertension
Diabetes Mellitus, Type 2
Interventions being studied
telmisartan combined with hydrochlorothiazide (80/12.5 mg)
valsartan combined with hydrochlorothiazide (160/12.5mg)
Inclusion Criteria:
1. Ability to provide written informed consent.
2. Hypertension defined as a mean seated DBP of 95-109 (inclusive) mmHg, and/or SBP of 140-179 (inclusive) mmHg, measured by BpTRU electronic or manual cuff at Visit 2.
3. 24-hour mean DBP of \>= 85 mmHg, and/or SBP = 130 mmHg, measured by ABPM at Visit 3.
4. 30 years of age or greater.
5. Ability to stop current antihypertensive therapy and other disallowed medications without risk to the patient.
6. Diagnosis of type-2 diabetes mellitus with HbA1C less than or equal to 10%.
7. Overweight or obese as defined by a BMI \>= 27 kg/m2 in non-Asians and \>= 24 kg/m2 in Asians.
8. Negative UPT for females.
Exclusion Criteria:
1. Pre-menopausal women, not surgically sterile or, not nursing/pregnant or are of child-bearing potential and will not practice acceptable methods of birth control during study.
2. Night shift workers
3. Mean sitting SBP \>= 180 mmHg or mean sitting DBP \>= 110 mmHg during any visit of the placebo run-in period.
4. Known or suspected secondary hypertension. Hepatic and/or renal dysfunction
5. Fasting serum glucose \> 17 mmol/l (or 300 mg/dl) at visit 2
6. Bilateral renal artery stenosis, renal artery stenosis in a solitary kidney, patients on dialysis or post-renal transplant patients.
7. Clinically relevant sodium depletion, hypokalaemia or hyperkalaemia.
8. Uncorrected volume depletion.
9. Primary aldosteronism.
10. Hereditary fructose intolerance.
11. Biliary obstructive disorders (e.g., cholestasis).
12. Congestive heart failure
13. Stroke within the past six months.
14. Documented severe obstructive coronary artery disease.
15. Myocardial infarction, cardiac surgery or unstable angina within the past three months.
16. PCI (percutaneous coronary intervention) within the past three months or planned during trial period.
17. Sustained ventricular tachycardia, atrial fibrillation, atrial flutter or other clinically relevant cardiac arrhythmias.
18. Hypertrophic obstructive cardiomyopathy, aortic stenosis, hemodynamically relevant stenosis of the aortic or mitral valve.
19. Patients with type-1 diabetes mellitus.
20. Patients who have previously experienced symptoms of angioedema during ACE or ARB treatment.
21. History of drug or alcohol dependency in past six months.
22. Chronic administration of any medications known to affect blood pressure, except medication allowed by the protocol.
23. Any investigational drug therapy within the past month.
24. Known hypersensitivity to any component of the study drug.
25. Concurrent use of corticosteroids, colestipol or cholestyramine resins.
26. Any clinical condition which would not allow safe completion of the protocol.
27. Inability to comply with the protocol.
28. Any surgery that is, at the time of screening, planned to take place during the study period.
29. History of non-compliance with prescribed medications.
ELIGIBILITY
Gender: ALL
Age: 30+
Healthy Volunteers: No
60 Locations
Birmingham
Cooper Green Hospital
Alabama, 35223, United States
Birmingham
Boehringer Ingelheim Investigational Site
Alabama, 35294-2041, United States
Huntsville
Boehringer Ingelheim Investigational Site
Alabama, 35801, United States
Mobile
Boehringer Ingelheim Investigational Site
Alabama, 36608, United States
Glendale
Boehringer Ingelheim Investigational Site
Arizona, 85306, United States
Tucson
Boehringer Ingelheim Investigational Site
Arizona, 85712, United States
Long Beach
Memorial Research Medical Clinic
California, 90806, United States
Los Angeles
1200
California, 90033, United States
Los Angeles
Boehringer Ingelheim Investigational Site
California, 90057, United States
Nuena Park
8615
California, 90620, United States
Orange
Boehringer Ingelheim Investigational Site
California, 92868, United States
Sacramento
Boehringer Ingelheim Investigational Site
California, 95825, United States
Sacramento
Boehringer Ingelheim Investigational Site
California, 95841, United States
San Francisco
595
California, 94132, United States
Stockton
1805
California, 95204, United States
Torrance
Boehringer Ingelheim Investigational Site
California, 90505, United States
Washington
2311
District of Columbia, 20037, United States
Fort Lauderdale
Boehringer Ingelheim Investigational Site
Florida, 33308, United States
Ft. Lauderdale
Boehringer Ingelheim Investigational Site
Florida, 33308-4311, United States
Hollywood
6448
Florida, 33023, United States
Melbourne
Boehringer Ingelheim Investigational Site
Florida, 32901, United States
Pembroke Pines
Attention: Larry I. Gilderman, D.O.
Florida, 33024, United States
Pembroke Pines
Boehringer Ingelheim Investigational Site
Florida, 33027, United States
Pembroke Pines
Boehringer Ingelheim Investigational Site
Florida, 33028, United States
Pinellas Park
Boehringer Ingelheim Investigational Site
Florida, 33781, United States
West Palm Beach
Boehringer Ingelheim Investigational Site
Florida, 33401, United States
Chicago
Herron Medical Center, Ltd.
Illinois, 60610, United States
Chicago
Boehringer Ingelheim Investigational Site
Illinois, 60612, United States
Orland Park
Boehringer Ingelheim Investigational Site
Illinois, 60462, United States
Evansville
Boehringer Ingelheim Investigational Site
Indiana, 47710, United States
Evansville
Boehringer Ingelheim Investigational Site
Indiana, 47713, United States
Shawnee
Boehringer Ingelheim Investigational Site
Kansas, 66216, United States
Wichita
Boehringer Ingelheim Investigational Site
Kansas, 67212, United States
New Orleans
Boehringer Ingelheim Investigational Site
Louisiana, 70119, United States
Baltimore
Boehringer Ingelheim Investigational Site
Maryland, 21204, United States
Baltimore
200
Maryland, 21218, United States
Kansas City
Boehringer Ingelheim Investigational Site
Missouri, 64114, United States
St.Louis
12401
Missouri, 63141, United States
Missoula
Boehringer Ingelheim Investigational Site
Montana, 59802, United States
Brooklyn
Boehringer Ingelheim Investigational Site
New York, 11203, United States
Buffalo
3
New York, 14209, United States
Berlin
Comprehensive Clinical Research
North Carolina, 08009, United States
Winston Salem
Boehringer Ingelheim Investigational Site
North Carolina, 27103, United States
Kettering
Boehringer Ingelheim Investigational Site
Ohio, 45429, United States
Marion
Boehringer Ingelheim Investigational Site
Ohio, 43302, United States
Oklahoma City
Boehringer Ingelheim Investigational Site
Oklahoma, 73132-4904, United States
Portland
Boehringer Ingelheim Investigational Site
Oregon, 97232, United States
Broomal
Boehringer Ingelheim Investigational Site
Pennsylvania, 19008, United States
Bartlett
6605
Tennessee, 38134, United States
Fayetteville
108
Tennessee, 37334, United States
Carrollton
Boehringer Ingelheim Investigational Site
Texas, 75006, United States
Dallas
7777
Texas, 75230, United States
El Paso
Boehringer Ingelheim Investigational Site
Texas, 79912, United States
Harker Heights
Team Research of Texas
Texas, 76548, United States
San Antonio
Boehringer Ingelheim Investigational Site
Texas, 78217, United States
San Antonio
Boehringer Ingelheim Investigational Site
Texas, 78229-4801, United States
Salt Lake City
420
Utah, 84111, United States
Ettrick
20901
Virginia, 23803, United States
Spokane
Boehringer Ingelheim Investigational Site
Washington, 99207, United States
Miwaukee
5000
Wisconsin, 53295, United States
Primary Contact(s)
Boehringer Ingelheim
Data obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.
Learn more at
ClinicalTrials.gov