PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33295758-11 2021 This in vivo reduction in serum IGF-I was at a considerably lower dose compared to the higher doses required to observe comparable activity in studies with pegvisomant. pegvisomant 156-167 insulin like growth factor 1 Homo sapiens 32-37