A Clinical Study to Compare Long-term Efficacy and Safety of an Aliskiren Based Regimen to a Hydrochlorothiazide Based Treatment Regimen With Optional Addition of Amlodipine [clinicaltrials:NCT00294710]

A Clinical Study to Compare Long-term Efficacy and Safety of an Aliskiren Based Regimen to a Hydrochlorothiazide Based Treatment Regimen With Optional Addition of Amlodipine [clinicaltrials:NCT00294710]