The invention concerns the use of a
bombesin /
gastrin releasing
peptide antagonist in the treatment of inflammatory and immune-mediated inflammatory conditions, in particular
sepsis, acute
lung injury and
rheumatoid arthritis as well as for the treatment or prophylaxis of brain disorders, preferably bipolar disorder, and in particular the different forms and / or subforms of bipolar disorder, such as
mania, acute
mania, severe
mania, hypomania, depression, moderate depression, dysthymia, severe depression, episodes of mania and / or depression,
psychosis / psychotic symptoms (e.g. hallucinations, delusions), mixed bipolar state,
bipolar I disorder, bipolar II disorder and / or rapid-
cycling bipolar disorder. In particular, specific nonapeptides with
antagonist properties against
bombesin or
bombesin-like peptides, such as the
gastrin releasing
peptide, may be used in the treatment of inflammatory and immune-mediated inflammatory conditions as well as brain disorders.