Identifying Most Effective Treatment Strategies to Control Arterial Hypertension in Sub-Saharan Africa

Participants will be started on a dual therapy with half dose of CCB and an ARB. If needed, a) the dose of the CCB will be increased at 4 weeks, and b) the dose of the ARB at 8 weeks, if blood pressure remains uncontrolled ((if target blood pressure is not achieved at this time point (target blood pressure defined as clinic BP \</=130/80mmHg in patients \<65years and \</=140/90mmHg in patients \>65years)

Participants will be started with low dose (1/4) triple combination treatment with CCB, TZD and ARB. If uncontrolled after 4 weeks, dosages of all drugs will be doubled. If after 8 weeks still uncontrolled dosage will be increased to full dose of all three drugs ((if target blood pressure is not achieved at this time point (target blood pressure defined as clinic BP \</=130/80mmHg in patients \<65years and \</=140/90mmHg in patients \>65years)

Participants will be started on regular dose of CCB with a) addition of TZD at 4 weeks, if needed, b) increase of dose of TZD after 8 weeks, if needed (if target blood pressure is not achieved at this time point (target blood pressure defined as clinic BP \</=130/80mmHg in patients \<65years and \</=140/90mmHg in patients \>65years)