title: The losartan renal protection study--rationale, study design and baseline characteristics of RENAAL (Reduction of Endpoints in NIDDM with the Angiotensin II Antagonist Losartan).
abstract: The RENAAL Study is a double-blind, placebo-controlled trial to evaluate the renal protective effects of losartan in Type 2 diabetic patients with nephropathy. The study has enrolled 1513 patients and is expected to continue for 3.5 years after the last patient has been entered. Eligible patients must have a urinary albumin:creatinine ratio of at least 300 mg/g and serum creatinine between 1.3 to 3.0 mg/dL. Eligible hypertensive or normotensive patients are randomised to receive either losartan or placebo, in addition to their existing antihypertensive therapy. Medications that block angiotensin production or action, are excluded. The primary endpoint is a composite of the time to first event of doubling of serum creatinine, end-stage renal disease, or death; secondary endpoints include cardiovascular events, progression of renal disease, and changes in proteinuria; tertiary endpoints include quality of life, healthcare resource utilisation, and amputations. Patients include Caucasians (48.6%), Blacks (15.2%), Asians (16.7%), and Hispanics (18.2%). Baseline urinary albumin:creatinine ratio and serum creatinine levels average 1867 mg/g and 1.9 mg/dL, respectively. Mean systolic and diastolic blood pressures are 153 and 82 mmHg, respectively. RENAAL will document whether blockade of the AII receptor with losartan produces clinical benefits in patients with Type 2 diabetes and nephropathy.
authors.affiliation: Renal Division, Brigham and Women's Hospital, Boston, MA, USA.
authors.forename: B M
authors.initials: BM
authors.lastname: Brenner
authors.forename: M E
authors.initials: ME
authors.lastname: Cooper
authors.forename: D
authors.initials: D
authors.lastname: de Zeeuw
authors.forename: J P
authors.initials: JP
authors.lastname: Grunfeld
authors.forename: W F
authors.initials: WF
authors.lastname: Keane
authors.forename: K
authors.initials: K
authors.lastname: Kurokawa
authors.forename: J B
authors.initials: JB
authors.lastname: McGill
authors.forename: W E
authors.initials: WE
authors.lastname: Mitch
authors.forename: H H
authors.initials: HH
authors.lastname: Parving
authors.forename: G
authors.initials: G
authors.lastname: Remuzzi
authors.forename: A B
authors.initials: AB
authors.lastname: Ribeiro
authors.forename: M D
authors.initials: MD
authors.lastname: Schluchter
authors.forename: D
authors.initials: D
authors.lastname: Snavely
authors.forename: Z
authors.initials: Z
authors.lastname: Zhang
authors.forename: R
authors.initials: R
authors.lastname: Simpson
authors.forename: D
authors.initials: D
authors.lastname: Ramjit
authors.forename: S
authors.initials: S
authors.lastname: Shahinfar
mesh_terms: D000368:Aged; D057911:Angiotensin Receptor Antagonists; D003924:Diabetes Mellitus, Type 2 / Q000188:drug therapy*; D003928:Diabetic Nephropathies / Q000188:drug therapy*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D019808:Losartan / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged
chemical_list: D057911:Angiotensin Receptor Antagonists; D019808:Losartan