Prevention of Cardiovascular Complications in Diabetic Patients With Vitamin E Treatment

Summary

The purpose of this study is to determine whether Vitamin E treatment to Diabetic patients, who carry the Haptoglobin 2-2 Phenotype, prevents cardiovascular complications such as acute MI and Stroke.

Timeline

Start

2005-04

Primary completion

—

Completion

2009-12

Outcome

Met primary endpoint

Stopped: “interim analysis showed significant differences between two treatment groups”

paper the primary outcome was significantly reduced in individuals receiving vitamin E (2.2%) compared with placebo (4.7%; P=0.01) PMID 18032779 ↗

Publications

• Background Melamed-Frank M, Lache O, Enav BI, Szafranek T, Levy NS, Ricklis RM, Levy AP. Structure-function analysis of the antioxidant properties of haptoglobin. Blood. 2001 Dec 15;98(13):3693-8. doi: 10.1182/blood.v98.13.3693.
• Background Levy AP, Roguin A, Hochberg I, Herer P, Marsh S, Nakhoul FM, Skorecki K. Haptoglobin phenotype and vascular complications in patients with diabetes. N Engl J Med. 2000 Sep 28;343(13):969-70. doi: 10.1056/NEJM200009283431313. No abstract available.
• Background Nakhoul FM, Marsh S, Hochberg I, Leibu R, Miller BP, Levy AP. Haptoglobin genotype as a risk factor for diabetic retinopathy. JAMA. 2000 Sep 13;284(10):1244-5. doi: 10.1001/jama.284.10.1244-a. No abstract available.
• Background Nakhoul FM, Zoabi R, Kanter Y, Zoabi M, Skorecki K, Hochberg I, Leibu R, Miller B, Levy AP. Haptoglobin phenotype and diabetic nephropathy. Diabetologia. 2001 May;44(5):602-4. doi: 10.1007/s001250051666.
• Background Roguin A, Hochberg I, Nikolsky E, Markiewicz W, Meisel SR, Hir J, Grenadier E, Beyar R, Levy AP. Haptoglobin phenotype as a predictor of restenosis after percutaneous transluminal coronary angioplasty. Am J Cardiol. 2001 Feb 1;87(3):330-2, A9. doi: 10.1016/s0002-9149(00)01368-0.
• Background Levy AP, Hochberg I, Jablonski K, Resnick HE, Lee ET, Best L, Howard BV; Strong Heart Study. Haptoglobin phenotype is an independent risk factor for cardiovascular disease in individuals with diabetes: The Strong Heart Study. J Am Coll Cardiol. 2002 Dec 4;40(11):1984-90. doi: 10.1016/s0735-1097(02)02534-2.
• Background Hochberg I, Roguin A, Nikolsky E, Chanderashekhar PV, Cohen S, Levy AP. Haptoglobin phenotype and coronary artery collaterals in diabetic patients. Atherosclerosis. 2002 Apr;161(2):441-6. doi: 10.1016/s0021-9150(01)00657-8.
• Background Levy AP, Gerstein HC, Miller-Lotan R, Ratner R, McQueen M, Lonn E, Pogue J. The effect of vitamin E supplementation on cardiovascular risk in diabetic individuals with different haptoglobin phenotypes. Diabetes Care. 2004 Nov;27(11):2767. doi: 10.2337/diacare.27.11.2767. No abstract available.
• Milman U, Blum S, Shapira C, Aronson D, Miller-Lotan R, Anbinder Y, Alshiek J, Bennett L, Kostenko M, Landau M, Keidar S, Levy Y, Khemlin A, Radan A, Levy AP. Vitamin E supplementation reduces cardiovascular events in a subgroup of middle-aged individuals with both type 2 diabetes mellitus and the haptoglobin 2-2 genotype: a prospective double-blinded clinical trial. Arterioscler Thromb Vasc Biol. 2008 Feb;28(2):341-7. doi: 10.1161/ATVBAHA.107.153965. Epub 2007 Nov 21.

Drugs

Evaluation	Drug	Modality	Dose	Route
Subject	Vitamin E	Other / unclassified	400 iu	—

Indications