The present invention provides novel peptides that can modulate the ghrelin receptor (growth hormone secretagogue receptor, GHS-R1a and sub-types, isoforms and variants thereof). These peptides are useful as antagonists of the ghrelin receptor as well as inverse agonist, partial agonist or a combination of these activities as medicaments for treatment and prevention of a range of medical conditions including, but not limited to, metabolic and/or endocrine disorders, gastrointestinal disorders, cardiovascular disorders, obesity and obesity-associated disorders, diabetes, central nervous system disorders, genetic disorders, and hyperpro-liferative disorders.
