Disclosed are cyclic peptide analogs that are MC-4 and/or MC-3 receptor ligands, the analogs having a structure according to Formula (I): wherein B, X, E, Z, D, G, M′, W, R, R1, R1′, R11, m, n, p and q are as described in the specification. The peptide analogs are useful in treating diseases that are mediated by the MC-4 and/or the MC-3 receptor. As such, the invention is directed to methods of treating body weight disorders, such as obesity, anorexia, and cachexia. The invention also relates to the treatment of CNS depression, behavior-related disorders, memory-related disorders, cardiovascular function, inflammation, sepsis, septic shock, cardiogenic shock, hypovolemic shock, sexual dysfunction, erectile dysfunction, muscle atrophy, diseases associated with nerve growth and repair, and intrauterine fetal growth. Also disclosed are pharmaceutical compositions comprising the peptide analogs of Formula (I).