GHRH and neoplasm: However, growth hormone-releasing hormone (GHRH) agonist MR409 (N-Me-Tyr1, D-Ala2, Asn8, Arg29-NHCH3-JI-38) was demonstrated to suppresses tumor growth of human experimental lung and other cancers, including gastric, pancreatic, urothelial, prostatic, mammary, and colorectal [302,303].