Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2001-12-03
2003-06-03
Weddington, Kevin E. (Department: 1614)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C514S884000
Reexamination Certificate
active
06573291
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to the use of selected compounds to antagonize or inhibit GLP-1 activity in a mammal patient in need thereof, as well as to a pharmaceutical composition comprising such antagonist(s).
BACKGROUND OF THE INVENTION
Glucagon-like peptide 1(7-36)amide (GLP-1) is an intestinal hormone and neurotransmitter that is involved in the control of metabolism and food intake. A major function of the hormone appears to be the regulation of the amount of insulin released in response to a meal, GLP-1 increasing the insulin secretion. It has therefore been proposed that a molecule capable of augmenting the action of GLP-1, i.e. a GLP-1 agonist, should be useful as an antidiabetic agent to lower elevated blood glucose levels in a mammal serum.
Conversely, a GLP-1 antagonist could be used to elevate the blood glucose level in a subject afflicted with too low a blood glucose level. An exemplary such condition is postprandial reactive hypoglycemia, such as in partially gastrorectomised subjects (Toft-Nielsen M. et al., Diabetologia 41(10):1180-6, 1998). Other disorders where a GLP-1 antagonist is believed to be useful include anorexia (Jensen P. B. et al., J. Clin. Invest. 102(2):503-10, 1998), and reduced intestinal motility and constipation (Tolessa T. et al., Digestive diseases and Sciences 43(10):2284-99, 1998). It has also been suggested that a GLP-1 antagonist could be used to reduce symptoms in Alzheimer's disease, GLP-1 mediating the inhibition of beta-amyloid induced neural activation (Oka J. I. et al., SO Neuroreport 10(8):1643-6, 1999).
SUMMARY OF THE INVENTION
According to the present invention, a limited class of chemical compounds have been found which are excellent antagonists of GLP-1 and therefore would be useful for the treatment of diseases or disorders where inhibition of GLP-1 action would be indicated.
Therefore, in one aspect thereof, the present invention provides a method of antagonizing (e.g., inhibiting) GLP-1 activity in a mammalian patient, comprising administering to said patient an effective amount of a compound of the general formula I:
wherein:
R
1
and R
2
independently of each other are C
1-4
alkyl,
R
3
is halogen, hydroxy, C
1-4
-alkoxy or trifluoromethoxy, and
R
4
is hydrogen, hydroxy or C
1-4
-alkoxy,
or a pharmacologically acceptable salt thereof.
In another aspect, the present invention provides a compound of formula I above for use as a pharmaceutical.
In still another aspect, the present invention provides a pharmaceutical composition comprising a compound of formula I above and optionally a pharmaceutically acceptable carrier.
Yet another aspect of the present invention provides the use of a compound of formula I above for the preparation of a medicament for antagonizing GLP-1 activity in a mammalian patient.
This invention also features a method of treating a disorder where inhibition of GLP-1 activity is indicated. The method includes administering to a mammal subject in need thereof an effective amount of a compound of formula I above.
Further, this invention features a method of treating a disorder where inhibition of GLP-1 activity is indicated. The method includes administering to a mammal subject in need thereof a pharmaceutical composition, wherein the pharmaceutical composition includes an effective amount of a compound of formula I above and a pharmaceutically acceptable carrier.
Also within the scope of this invention is a method for the manufacture of a medicament for antagonizing GLP-1 activity in a mammalian patient, characterized in that a compound of formula I above is used as the pharmaceutically active substance.
REFERENCES:
patent: 6291476 (2001-09-01), Kordik et al.
patent: 0 142 190 (1985-05-01), None
patent: WO 93/03714 (1993-03-01), None
patent: WO 00/69849 (2000-11-01), None
STN International, File CAPLUS accession No. 1999:382989, Document No. 131:165408, Meurer, Janet A., et al. “Properties of native and in vitro glucosylated forms of the glucagon-like peptide-1 receptor antagonist exending(9-39)”, Metab., Clin. Exp. (1999), 48(6), pp. 716-724.
Colca Jerry R.
Gronberg Alvar
Biovitrum AB
Fish & Richardson PC
Weddington Kevin E.
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