Resumen

The primary objective is to assess the antihypertensive efficacy of 4 different AVE 7688 doses on the change from baseline in trough diastolic blood pressure at the end of week 12. The secondary objectives are: * To assess the antihypertensive efficacy of 4 different AVE 7688 doses on the change from baseline in trough systolic blood pressure at the end of week 12 * To compare the percentages of responders after 12 week of treatment * To evaluate the long term safety and tolerability of AVE 7688 with particular attention to angioedema

Descripción detallada

This study is a prospective multi-center, randomized, double-blind, active-controlled parallel-group, dose ranging study with 5 treatment groups (AVE7688 at 4 different dosages, and losartan-potassium 100 mg). There will be 3 study phases: placebo lead-in, treatment, and follow-up. During the placebo lead-in phase (duration 3 to 4 weeks), patients will discontinue concomitant treatment with any antihypertensive or vasodilating agents and will receive single-blind placebo until randomization. Patients who meet the inclusion and exclusion criteria will be randomized to receive once-daily oral doses of either 2.5, 10, 35 or 50 mg AVE7688, or 100 mg losartan-potassium. The treatment phase will consist of two parts: an efficacy evaluation period, with a 2 week titration period (from randomization to week 2, visit T1 to visit T3) up to 12 weeks, followed by a long-term safety evaluation period until the end of week 52. Antihypertensive treatment such as diuretics, beta blockers or calcium channel blockers can be introduced or re-introduced if indicated during the long term safety evaluation period but angiotensin converting enzyme inhibitors (ACE-I) or angiotensin receptor blockers (ARBs) are not permitted. An additional visit (visit F1) will occur two weeks after the last dose of study medication.

Elegibilidad

Edad mínima: 18 YearsSexo: ALL

Criterios de inclusión

Patients with mild-to-moderate, treated or untreated, essential hypertension, as defined by the JNC VII (Joint National Committee on the Prevention, Detection, Evaluation, and
Treatment of High Blood Pressure, Seventh report ) guidelines who meet the following BP eligibility criteria:
mean SeSBP (Seated systolic blood pressure) ≥140 mm Hg and \<180 mm Hg and mean SeDBP (Seated diastolic blood pressure) ≥90 mm Hg and \<110 mm Hg at two consecutive qualifying visits in the placebo lead-in phase
variability between the mean BP measurements on the 2 consecutive qualifying visits is less or equal 7 mm Hg for SeDBP.

Criterios de exclusión

Refusal or inability to give informed consent
Patients who have previously been treated with AVE7688
Patients who cannot stop their anti-hypertensive treatment
Known history of secondary hypertension, including patients with endocrine disorders such as pheochromocytoma, active hyperthyroidism, or untreated hypothyroidism
Severe hypertension
Women of child bearing potential, who have a positive serum pregnancy test, or who do not agree to use an accepted method of contraception
Women who are breast feeding
Patients with non-cardiac progressive fatal disease
Patients with immunological or hematological disorders
Requirement for concomitant treatment that could bias the primary evaluation
Unstable insulin-dependent diabetes mellitus
History of stroke, intracranial hemorrhage or transitory ischemic attack within the previous year
Likelihood of poor compliance both with treatment and study design
Patient is the investigator, sub-investigator, research assistant, pharmacist, study coordinator, or other staff member or relative there of directly involved in the conduct of the study
Administration of any investigational drug within the preceding 30 days
Abuse of drugs or alcoholic beverages within 1 year prior to the start of the study
Patients taking herbal or dietary compounds that have the potential to influence blood pressure
Contraindications to losartan-potassium as per local package insert
History of hypersensitivity or angioedema with ACE inhibitors or NEP inhibitors, patients with hereditary or idiopathic angioedema, patients with allergic reaction in which urticaria or angioedema was the manifestation
Impaired hepatic function
Known unilateral or bilateral renal artery stenosis
Serum potassium \> 5.5 mmol/L
Impaired renal function

Double-blind, Randomized, Parallel-group, Dose Ranging, Multicenter Study to Evaluate the Efficacy and Safety of 2.5, 10, 35 and 50 mg AVE 7688 Once Daily, Using 100 mg Losartan-potassium Once Daily as Calibrator, for 12 Months Treatment, in Patients With Mild to Moderate Hypertension

Resumen

Descripción detallada

Elegibilidad

Criterios de inclusión

Criterios de exclusión

Intervenciones

AVE7688

Losartan-potassium

Ubicaciones

Sanofi-Aventis Administrative Office

Patrocinadores