Efficacy and Safety Study of DiaPep277 in Newly Diagnosed Type 1 Diabetes Adults

Summary

This study will look at the treatment effect of DiaPep277 on preservation of beta-cell function, as defined by meal-stimulated secretion of insulin. DiaPep277 is a peptide that changes the way the immune system behaves, stopping its attack on the beta-cells. Adults (\>20 years) with newly diagnosed (\<6 months) type 1 diabetes will be treated with 10 injections of DiaPep277 or Placebo over a 2-year treatment and follow-up period.

Timeline

Start

2010-04

Primary completion

2014-10

Completion

2014-10

Outcome

Missed primary endpoint

registry analysis (superiority or other test); DiaPep277 vs Placebo; p = 0.33; Mixed Models Analysis; note: The a priori threshold for statistical significance was 0.05 NCT01103284 ↗

Publications

• Background Huurman VA, van der Meide PE, Duinkerken G, Willemen S, Cohen IR, Elias D, Roep BO. Immunological efficacy of heat shock protein 60 peptide DiaPep277 therapy in clinical type I diabetes. Clin Exp Immunol. 2008 Jun;152(3):488-97. doi: 10.1111/j.1365-2249.2008.03656.x. Epub 2008 Apr 16.
• Background Huurman VA, Decochez K, Mathieu C, Cohen IR, Roep BO. Therapy with the hsp60 peptide DiaPep277 in C-peptide positive type 1 diabetes patients. Diabetes Metab Res Rev. 2007 May;23(4):269-75. doi: 10.1002/dmrr.691.
• Background Schloot NC, Meierhoff G, Lengyel C, Vandorfi G, Takacs J, Panczel P, Barkai L, Madacsy L, Oroszlan T, Kovacs P, Suto G, Battelino T, Hosszufalusi N, Jermendy G. Effect of heat shock protein peptide DiaPep277 on beta-cell function in paediatric and adult patients with recent-onset diabetes mellitus type 1: two prospective, randomized, double-blind phase II trials. Diabetes Metab Res Rev. 2007 May;23(4):276-85. doi: 10.1002/dmrr.707.
• Background Raz I, Avron A, Tamir M, Metzger M, Symer L, Eldor R, Cohen IR, Elias D. Treatment of new-onset type 1 diabetes with peptide DiaPep277 is safe and associated with preserved beta-cell function: extension of a randomized, double-blind, phase II trial. Diabetes Metab Res Rev. 2007 May;23(4):292-8. doi: 10.1002/dmrr.712.
• Background Eldor R, Kassem S, Raz I. Immune modulation in type 1 diabetes mellitus using DiaPep277: a short review and update of recent clinical trial results. Diabetes Metab Res Rev. 2009 May;25(4):316-20. doi: 10.1002/dmrr.942.
• Background Raz I, Elias D, Avron A, Tamir M, Metzger M, Cohen IR. Beta-cell function in new-onset type 1 diabetes and immunomodulation with a heat-shock protein peptide (DiaPep277): a randomised, double-blind, phase II trial. Lancet. 2001 Nov 24;358(9295):1749-53. doi: 10.1016/S0140-6736(01)06801-5.
• Background Elias D, Avron A, Tamir M, Raz I. DiaPep277 preserves endogenous insulin production by immunomodulation in type 1 diabetes. Ann N Y Acad Sci. 2006 Oct;1079:340-4. doi: 10.1196/annals.1375.052.
• Background Nussbaum G, Zanin-Zhorov A, Quintana F, Lider O, Cohen IR. Peptide p277 of HSP60 signals T cells: inhibition of inflammatory chemotaxis. Int Immunol. 2006 Oct;18(10):1413-9. doi: 10.1093/intimm/dxl074. Epub 2006 Aug 7.
• Background Fischer B, Elias D, Bretzel RG, Linn T. Immunomodulation with heat shock protein DiaPep277 to preserve beta cell function in type 1 diabetes - an update. Expert Opin Biol Ther. 2010 Feb;10(2):265-72. doi: 10.1517/14712590903555176.

Drugs

Indications