PMID- 27178743 OWN - NLM STAT- MEDLINE DCOM- 20180131 LR - 20220331 IS - 1557-3265 (Electronic) IS - 1078-0432 (Linking) VI - 22 IP - 20 DP - 2016 Oct 15 TI - Phase I Study of the Investigational Anti-Guanylyl Cyclase Antibody-Drug Conjugate TAK-264 (MLN0264) in Adult Patients with Advanced Gastrointestinal Malignancies. PG - 5049-5057 AB - PURPOSE: To assess the safety, tolerability, and preliminary antitumor activity of the investigational anti-guanylyl cyclase C (GCC) antibody-drug conjugate TAK-264 (formerly MLN0264) in adult patients with advanced gastrointestinal malignancies. EXPERIMENTAL DESIGN: Adult patients with GCC-expressing gastrointestinal malignancies (H-score >/= 10) were eligible for inclusion. TAK-264 was administered as a 30-minute intravenous infusion once every 3 weeks for up to 17 cycles. Dose escalation proceeded using a Bayesian continual reassessment method. At the maximum tolerated dose (MTD), 25 patients with metastatic colorectal cancer were enrolled in a prespecified dose expansion cohort. RESULTS: Forty-one patients were enrolled, including 35 (85%) with metastatic colorectal cancer. During dose escalation (0.3-2.4 mg/kg), four of 19 patients experienced dose-limiting toxicities of grade 4 neutropenia; the MTD was determined as 1.8 mg/kg. Patients received a median of two cycles of TAK-264 (range, 1-12); nine received >/=four cycles. Common drug-related adverse events (AEs) included nausea and decreased appetite (each 41%), fatigue (32%), diarrhea, anemia, alopecia, and neutropenia (each 27%); grade >/=3 AEs included neutropenia (22%), hypokalemia, and febrile neutropenia (each 7%). Peripheral neuropathy was reported in four (10%) patients. Pharmacokinetic data showed approximately dose proportional systemic exposure and a mean plasma half-life of around 4 days, supporting the dosing schedule. Overall, 39 patients were response-evaluable; three experienced durable stable disease; and one with gastric adenocarcinoma had a partial response. GCC expression did not appear to correlate with treatment duration. CONCLUSIONS: These findings suggest that TAK-264 has a manageable safety profile, with preliminary evidence of potential antitumor activity in specific gastrointestinal malignancies. Further investigation is underway. Clin Cancer Res; 22(20); 5049-57. (c)2016 AACR. CI - (c)2016 American Association for Cancer Research. FAU - Almhanna, Khaldoun AU - Almhanna K AD - Department of Gastrointestinal Oncology, Moffitt Cancer Center, Tampa, Florida. Khaldoun.Almhanna@moffitt.org. FAU - Kalebic, Thea AU - Kalebic T AD - Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceutical Company Limited, Cambridge, Massachusetts. FAU - Cruz, Cristina AU - Cruz C AD - Vall d'Hebron Institute of Oncology, Vall d'Hebron University Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain. FAU - Faris, Jason E AU - Faris JE AD - Hematology/Oncology, Massachusetts General Hospital Cancer Center, Boston, Massachusetts. FAU - Ryan, David P AU - Ryan DP AD - Hematology/Oncology, Massachusetts General Hospital Cancer Center, Boston, Massachusetts. FAU - Jung, JungAh AU - Jung J AD - Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceutical Company Limited, Cambridge, Massachusetts. FAU - Wyant, Tim AU - Wyant T AD - Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceutical Company Limited, Cambridge, Massachusetts. FAU - Fasanmade, Adedigbo A AU - Fasanmade AA AD - Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceutical Company Limited, Cambridge, Massachusetts. FAU - Messersmith, Wells AU - Messersmith W AD - Division of Medical Oncology, University of Colorado Cancer Center, Aurora, Colorado. FAU - Rodon, Jordi AU - Rodon J AD - Vall d'Hebron Institute of Oncology, Vall d'Hebron University Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain. LA - eng PT - Clinical Trial, Phase I PT - Journal Article PT - Multicenter Study DEP - 20160513 PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antineoplastic Agents) RN - 0 (Immunoconjugates) RN - 0 (Oligopeptides) RN - EC 4.6.1.2 (Guanylate Cyclase) RN - V7I58RC5EJ (monomethyl auristatin E) SB - IM MH - Adenocarcinoma/*drug therapy/pathology MH - Adult MH - Aged MH - Antibodies, Monoclonal/adverse effects/therapeutic use MH - Antineoplastic Agents/adverse effects/*therapeutic use MH - Dose-Response Relationship, Drug MH - Female MH - Gastrointestinal Neoplasms/*drug therapy/pathology MH - Guanylate Cyclase/*antagonists & inhibitors/immunology MH - Humans MH - Immunoconjugates/adverse effects/*therapeutic use MH - Male MH - *Maximum Tolerated Dose MH - Middle Aged MH - Oligopeptides/adverse effects/therapeutic use EDAT- 2016/05/15 06:00 MHDA- 2018/02/01 06:00 CRDT- 2016/05/15 06:00 PHST- 2015/10/12 00:00 [received] PHST- 2016/04/18 00:00 [accepted] PHST- 2016/05/15 06:00 [pubmed] PHST- 2018/02/01 06:00 [medline] PHST- 2016/05/15 06:00 [entrez] AID - 1078-0432.CCR-15-2474 [pii] AID - 10.1158/1078-0432.CCR-15-2474 [doi] PST - ppublish SO - Clin Cancer Res. 2016 Oct 15;22(20):5049-5057. doi: 10.1158/1078-0432.CCR-15-2474. Epub 2016 May 13.