title: Evaluation of angiotensin II receptor blockers for 24-hour blood pressure control: meta-analysis of a clinical database.
abstract: Angiotensin II receptor blockers are well tolerated and improve compliance in hypertensive patients. The need for 24-hour blood pressure control has focused attention on whether all agents in this class maintain smooth antihypertensive effects over a 24-hour period. Insight into this issue emerged from a meta-analysis of five large, multicenter trials in which ambulatory blood pressure monitoring was used to compare the antihypertensive effects of three angiotensin II receptor blockers: telmisartan, losartan, and valsartan. These trials used either a double-blind, placebo-controlled or a prospective, randomized, open-label, blinded-end point design. Initial analysis established the validity of combining ambulatory blood pressure monitoring data from the double-blind, placebo-controlled and prospective, randomized, open-label, blinded-end point designs. Subsequent analyses revealed that telmisartan 80 mg was significantly more effective than losartan 50 mg and valsartan 80 mg for reducing 24-hour mean blood pressure. Furthermore, telmisartan 80 mg was comparable to amlodipine 5 mg for controlling the early morning surge in blood pressure.
authors.affiliation: Division of Clinical Pharmacology and Hypertension, Veterans Affairs Medical Center, Long Beach, CA, USA. jmneutel@aol.com
authors.forename: Joel
authors.initials: J
authors.lastname: Neutel
authors.forename: David H G
authors.initials: DH
authors.lastname: Smith
mesh_terms: D000806:Angiotensin-Converting Enzyme Inhibitors / Q000627:therapeutic use*; D001562:Benzimidazoles / Q000627:therapeutic use; D001565:Benzoates / Q000627:therapeutic use; D018660:Blood Pressure Monitoring, Ambulatory; D004311:Double-Blind Method; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D019808:Losartan / Q000627:therapeutic use; D015337:Multicenter Studies as Topic; D011446:Prospective Studies; D016032:Randomized Controlled Trials as Topic; D000077333:Telmisartan; D013777:Tetrazoles / Q000627:therapeutic use; D014633:Valine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D000068756:Valsartan
chemical_list: D000806:Angiotensin-Converting Enzyme Inhibitors; D001562:Benzimidazoles; D001565:Benzoates; D013777:Tetrazoles; D000068756:Valsartan; D014633:Valine; D019808:Losartan; D000077333:Telmisartan