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A double-blind, randomized, multi-center active-controlled, parallel-group study comparing the combination of valsartan 320 mg plus hydrochlorothiazide 12.5 mg and valsartan 320 mg plus hydrochlorothiazide 25 mg to valsartan 320 mg in mild to moderate hypertensive patients not adequately controlled with valsartan 320 mg.

A double-blind, randomized, multi-center active-controlled, parallel-group study comparing the combination of valsartan 320 mg plus hydrochlorothiazide 12.5 mg and valsartan 320 mg plus hydrochlorothiazide 25 mg to valsartan 320 mg in mild to moderate hypertensive patients not adequately controlled with valsartan 320 mg.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2004-001197-10-HU
Enrollment
2668
Registered
2004-08-31
Start date
2004-08-03
Completion date
Unknown
Last updated
2012-03-19

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

Conditions

Mild to moderate hypertension

Interventions

Product Name: valsartan Pharmaceutical Form: Capsule, hard Pharmaceutical form of the placebo: Capsule, hard Route of administration of the placebo: Oral use Product Name: Hydrochlorothiazide Pharmac

Sponsors

Novartis Pharmaceuticals Corporation
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Male or female outpatients age between 18-80 years of age, inclusive 2. Diagnosed at enrollment (Visit 2) to be mild to moderate hypertensive with a MSDBP ?95 and =65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Severe hypertension ( MSDBP ?110 mmHg and/or MSSBP ? 180 mmHg ). 2. Inability to discontinue all prior anti-hypertensive medications safely for a period of 2-4 weeks, as required by the protocol. 3. Female patients who are not either post-menopausal for one year or surgically sterile, or who are not using effective contraceptive methods such as barrier method with spermicidal or an intra-uterine device. Hormonal contraceptive use is disallowed. 4. History of hypertensive encephalopathy or cerebrovascular accident within 1 year prior to Visit 1. 5. Known Keith-Wagener grade III or IV hypertensive retinopathy. 6. Transient ischemic cerebral attack, myocardial infarction, all types of revascularization procedures during the last 12 months prior to Visit 1. 7. Heart failure requiring treatment. 8. Second or third degree heart block without a pacemaker. 9. Concomitant refractory angina pectoris. 10. Concurrent potentially life threatening arrhythmia or symptomatic arrhythmia or 11. Clinically significant valvular heart disease. 12. Evidence of a secondary form of hypertension, such as coarctation of the aorta, hyperaldosteronism, unilateral or bilateral renal artery stenosis, Cushing’s disease, pheochromocytoma, polycystic kidney disease, etc. 13. Diabetes patients requiring insulin treatment 14. Type 2 diabetic patients who, in the opinion of the investigator, are not well controlled. 15. Administration of any agent indicated for the treatment of hypertension after Visit 1, with the permitted exception of those anti-hypertensive medications requiring tapering down commencing at Visit 1.

Design outcomes

Primary

MeasureTime frame
Main Objective: To demonstrate the blood pressure reduction effect of valsartan/HCTZ 320/25 mg o.d. or 320/12.5 mg o.d. in patients with mild to moderate hypertension not adequately controlled with valsartan 320 mg monotherapy o.d. (MSDBP =90 mmHg and ?110 mmHg at Visit 3) by testing the hypothesis that either valsartan/HCTZ 320/25 mg o.d. or valsartan/HCTZ 320/12.5 mg o.d. produces superior reduction in the mean sitting diastolic blood pressure (MSDPB) from baseline compared to valsartan 320 mg o.d alone;Secondary Objective: 1. Diastolic blood pressure reduction of valsartan/HCTZ 320/25 mg o.d. vs 320/12.5 mg o.d. in patients not adequately controlled with valsartan 320 mg monotherapy o.d. ( MSDBP =90 mmHg and ?110 mmHg at Visit 3) 2. Systolic BP reduction by valsartan/HCTZ 320/25 mg or valsartan/HCTZ 320/12.5 mg, in patients with mild to moderate hypertension not adequately controlled with valsartan 320 mg monotherapy 3. efficacy of valsartan/HCTZ 320/25 mg compared to 320/12.5 mg, in patients with mild to moderate hypertension not adequately controlled with valsartan 320 mg monotherapy, by testing the hypothesis that the combination of valsartan/HCTZ 320/25 mg produces superior reductions in MSSBP compared to the combination of valsartan/HCTZ 320/12.5 mg; 4. responder rates at the end of the study of these three treatments 5.relative tolerability and safety ;Primary end point(s): The primary variable is the change from baseline in trough mean sitting diastolic blooding pressure (MSDBP) at the endpoint. MSDBP is defined as the average of available readings of the sitting diastolic blood pressure from one visit. If all three readings are missing at a particular visit, MSDBP will not be calculated. However, for the endpoint, the last post-baseline measurement during the double-blind period will be carried forward as the endpoint measurement.

Countries

Hungary

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026