PMID- 26865390 OWN - NLM STAT- MEDLINE DCOM- 20161213 LR - 20181113 IS - 1573-0646 (Electronic) IS - 0167-6997 (Print) IS - 0167-6997 (Linking) VI - 34 IP - 2 DP - 2016 Apr TI - Two randomized, double-blind, placebo-controlled, dose-escalation phase 1 studies evaluating BTH1677, a 1, 3-1,6 beta glucan pathogen associated molecular pattern, in healthy volunteer subjects. PG - 202-15 LID - 10.1007/s10637-016-0325-z [doi] AB - BACKGROUND: BTH1677 is a beta glucan pathogen associated molecular pattern (PAMP) currently being investigated as a novel cancer therapy. Here, the initial safety and pharmacokinetic (PK) results of BTH1677 in healthy subjects are reported. SUBJECTS AND METHODS: In the Phase 1a single-dosing study, subjects were randomized (3:1 per cohort) to a single intravenous (i.v.) infusion of BTH1677 at 0.5, 1, 2, 4, or 6 mg/kg or placebo, respectively. In the Phase 1b multi-dosing study, subjects were randomized (3:1 per cohort) to 7 daily i.v. infusions of BTH1677 at 1, 2, or 4 mg/kg or placebo, respectively. Safety and PK non-compartmental analyses were performed. RESULTS: Thirty-six subjects (N = 24 Phase 1a; N = 12 Phase 1b) were randomized to treatment. No deaths or serious adverse events occurred in either study. Mild or moderate adverse events (AEs) occurred in 67% of BTH1677-treated subjects in both studies. Treatment-related AEs (occurring in >/=10% of subjects) included dyspnea, flushing, headache, nausea, paraesthesia, and rash in Phase 1a and conjunctivitis and headache in Phase 1b. BTH1677 serum concentration was linear with dose. Clearance, serum elimination half-life (t1/2) and volume of distribution (Vss) were BTH1677 dose-independent. In Phase 1b, area under the curve, t1/2, and Vss values were larger at steady state on days 6-30 versus day 0. CONCLUSIONS: BTH1677 was well tolerated after single doses up to 6 mg/kg and after 7 daily doses up to 4 mg/kg. FAU - Halstenson, C E AU - Halstenson CE AD - Prism Research, 1000 Westgate Drive, St. Paul, MN, 55114, USA. FAU - Shamp, T AU - Shamp T AD - Prism Research, 1000 Westgate Drive, St. Paul, MN, 55114, USA. AD - Respiratory Consultants, 3366 Oakdale Avenue N, Robbinsdale, MN, 55422, USA. FAU - Gargano, M A AU - Gargano MA AD - Biothera Pharmaceutical Inc., 3388 Mike Collins Drive, Eagan, MN, 55121, USA. FAU - Walsh, R M AU - Walsh RM AD - Biothera Pharmaceutical Inc., 3388 Mike Collins Drive, Eagan, MN, 55121, USA. FAU - Patchen, M L AU - Patchen ML AD - Biothera Pharmaceutical Inc., 3388 Mike Collins Drive, Eagan, MN, 55121, USA. mpatchen@biothera.com. LA - eng PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20160211 PL - United States TA - Invest New Drugs JT - Investigational new drugs JID - 8309330 RN - 0 (BTH1677) RN - 0 (Glucans) RN - 0 (Pathogen-Associated Molecular Pattern Molecules) RN - 0 (Placebos) RN - 0 (beta-Glucans) RN - 37361-00-5 (beta-1,6-glucan) SB - IM MH - Adolescent MH - Adult MH - Demography MH - Dose-Response Relationship, Drug MH - Double-Blind Method MH - Female MH - Glucans/*administration & dosage/adverse effects/pharmacokinetics/*pharmacology MH - *Healthy Volunteers MH - Humans MH - Male MH - Pathogen-Associated Molecular Pattern Molecules/*administration & dosage/pharmacokinetics/*pharmacology MH - Placebos MH - Young Adult MH - beta-Glucans/*administration & dosage/adverse effects/pharmacokinetics/*pharmacology PMC - PMC4786610 OTO - NOTNLM OT - BTH1677 OT - Beta glucan OT - Imprime PGG OT - Pathogen associated molecular pattern OT - Pharmacokinetics OT - Safety EDAT- 2016/02/13 06:00 MHDA- 2016/12/15 06:00 PMCR- 2016/02/11 CRDT- 2016/02/12 06:00 PHST- 2015/12/02 00:00 [received] PHST- 2016/01/10 00:00 [accepted] PHST- 2016/02/12 06:00 [entrez] PHST- 2016/02/13 06:00 [pubmed] PHST- 2016/12/15 06:00 [medline] PHST- 2016/02/11 00:00 [pmc-release] AID - 10.1007/s10637-016-0325-z [pii] AID - 325 [pii] AID - 10.1007/s10637-016-0325-z [doi] PST - ppublish SO - Invest New Drugs. 2016 Apr;34(2):202-15. doi: 10.1007/s10637-016-0325-z. Epub 2016 Feb 11.