Stopping Antihypertensive Treatment amOng Hypertensive Patients in Primary Care (STOP-Trial)

Inclusion Criteria: * Ambulatory patient above 18 years old. * Grade I hypertension at diagnosis. * Hypertension diagnosed and treated (whatever is its seniority and for at least 6 months) by antihypertensive drug. * Controlled hypertension (Clinical BP \< 140/90 mmHg) or uncontrolled hypertension (Clinical BP \> or equal to 140/90 mmHg) without modification of treatment for at least 6 months, by a monotherapy or a low dose dual therapy. * HBPM values \< 135/85mmHg (in order to exclude masked hypertension). * Patient having signed the informed consent form. * Patient affiliated to a national insurance scheme. Exclusion Criteria: * Personal cardiovascular history and/or necessity to take the antihypertensive treatment for another reason than hypertension (heart failure, migraine, peripheral arterial disease, coronary heart disease, stroke…). * Target organ damage (evidence of ventricular hypertrophy by ECG or cardiac echography and/or proteinuria and/or pathological micro-albuminuria presence showing a nephropathy, in the last year). * Poorly compliant patient, whose score of Girerd questionnaire is equal to or greater than 3. * Existence of a progressive disease likely to impact on the life expectancy in a short term. * Existence of a documented atrial fibrillation (contraindication of HBPM). * Patient under a legal protection measure. * Chronic alcohol or drug abuse, regular intake of vasopressor effect substances (licorice,cocaine,...). * Current known pregnancy or proje…