(19)
(11) EP 2 415 461 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
04.04.2012 Bulletin 2012/14

(43) Date of publication:
08.02.2012 Bulletin 2012/06

(21) Application number: 10007718.9

(22) Date of filing: 24.07.2010
(51) International Patent Classification (IPC): 
A61K 9/08(2006.01)
A61K 38/20(2006.01)
A61K 9/00(2006.01)
A61K 9/19(2006.01)
A61K 47/18(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated Extension States:
BA ME RS

(71) Applicants:
  • Roche Diagnostics GmbH
    68298 Mannheim (DE)

    DE 
  • F. Hoffmann-La Roche AG
    4070 Basel (CH)

    AL AT BE BG CH CY CZ DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR 

(72) Inventor:
  • Schneider, Christian, Dr.
    68165 Mannheim (DE)

   


(54) Stabilization of interleukin 6 in serum based solutions


(57) In one aspect, the invention is directed to a composition comprising IL-6, an isoform or a fragment thereof, a compound of the formula C10 - C18-Alkyl trimethylamonium halogenide (1), wherein the compound is saturated or unsaturated and / or substituted or non substituted, or a salt thereof, wherein the concentration of the compound in the composition is about 0.15 - about 0.4%, and a serum.
The present invention is further directed to a kit comprising a composition or a lyophilisate and an instruction for use. A further embodiment of the present invention is method of stabilizing IL-6, an isoform or a fragment thereof, comprising the steps of mixing IL-6, an isoform or a fragment thereof, a compound of the formula C10 - C18-Alkyl trimethylamonium halogenide (I), wherein the compound is saturated or unsaturated and / or substituted or non substituted, or a salt thereof, wherein the concentration of the compound in the composition is about 0.15 - about 0.4%, and a serum.