OlmeSartan and Calcium Antagonists Randomized (OSCAR) Study

Summary

The purpose of this study is to investigate whether high-dose angiotensin II receptor blocker (ARB) monotherapy or combination therapy with ARB and calcium channel blockers is more effective in reducing the incidence of cardiovascular events in Japanese elderly high-risk hypertensive patients not adequately controlled by standard dose ARB alone.

Timeline

Start

2005-08

Primary completion

2010-05

Completion

2010-05

Publications

• Do DV, Han G, Abariga SA, Sleilati G, Vedula SS, Hawkins BS. Blood pressure control for diabetic retinopathy. Cochrane Database Syst Rev. 2023 Mar 28;3(3):CD006127. doi: 10.1002/14651858.CD006127.pub3.
• Kim-Mitsuyama S, Ogawa H, Matsui K, Jinnouchi T, Jinnouchi H, Arakawa K; OSCAR Study Group. Differential effectiveness of ARB plus CCB therapy and high-dose ARB therapy in high-risk elderly hypertensive patients: subanalysis of the OSCAR study. Hypertens Res. 2015 Mar;38(3):199-207. doi: 10.1038/hr.2014.164. Epub 2014 Dec 4.
• Matsui K, Kim-Mitsuyama S, Ogawa H, Jinnouchi T, Jinnouchi H, Arakawa K; OlmeSartan Calcium Antagonists Randomized (OSCAR) Study Group. Sex differences in response to angiotensin II receptor blocker-based therapy in elderly, high-risk, hypertensive Japanese patients: a subanalysis of the OSCAR study. Hypertens Res. 2014 Jun;37(6):526-32. doi: 10.1038/hr.2014.23. Epub 2014 Mar 6.
• Kim-Mitsuyama S, Ogawa H, Matsui K, Jinnouchi T, Jinnouchi H, Arakawa K. An angiotensin II receptor blocker-calcium channel blocker combination prevents cardiovascular events in elderly high-risk hypertensive patients with chronic kidney disease better than high-dose angiotensin II receptor blockade alone. Kidney Int. 2013 Jan;83(1):167-76. doi: 10.1038/ki.2012.326. Epub 2012 Oct 10.
• Ogawa H, Kim-Mitsuyama S, Matsui K, Jinnouchi T, Jinnouchi H, Arakawa K; OlmeSartan and Calcium Antagonists Randomized (OSCAR) Study Group. Angiotensin II receptor blocker-based therapy in Japanese elderly, high-risk, hypertensive patients. Am J Med. 2012 Oct;125(10):981-90. doi: 10.1016/j.amjmed.2011.12.010. Epub 2012 Apr 14.
• Ogawa H, Kim-Mitsuyama S, Jinnouchi T, Matsui K, Arakawa K. Rationale, design and patient baseline characteristics of OlmeSartan and calcium antagonists randomized (OSCAR) study: a study comparing the incidence of cardiovascular events between high-dose angiotensin II receptor blocker (ARB) monotherapy and combination therapy of ARB with calcium channel blocker in Japanese elderly high-risk hypertensive patients (ClinicalTrials. gov no. NCT00134160). Hypertens Res. 2009 Jul;32(7):575-80. doi: 10.1038/hr.2009.60. Epub 2009 May 15.

Drugs

Indications