PMID- 34610572 OWN - NLM STAT- MEDLINE DCOM- 20220221 LR - 20220221 IS - 1476-1645 (Electronic) IS - 0002-9637 (Print) IS - 0002-9637 (Linking) VI - 105 IP - 6 DP - 2021 Oct 4 TI - Results of a Double-Blind, Randomized, Placebo-Controlled Phase 1 Study to Evaluate the Safety and Pharmacokinetics of Anti-Zika Virus Immunoglobulin. PG - 1552-1562 LID - tpmd201578 [pii] LID - 10.4269/ajtmh.20-1578 [doi] AB - Zika virus (ZIKV) is transmitted primarily through infected Aedes aegypti or Aedes albopictus mosquitoes. ZIKV infection during pregnancy was linked to adverse fetal/infant outcomes, including microcephaly, brain anomalies, ocular disorders, intrauterine growth restriction, and other congenital malformations. Human anti-Zika virus immunoglobulin (ZIKV-Ig) is being developed for prophylaxis of ZIKV in at-risk populations, including women of childbearing potential and pregnant women. A phase 1 single-center, double-blind, randomized, placebo-controlled study was conducted to assess the safety and pharmacokinetics (PK) of a single 50.0-mL ZIKV-Ig intravenous dose in healthy adult male or non-pregnant female subjects 18 to 55 years of age. Subjects received either ZIKV-Ig (n = 19) or saline placebo (n = 11). Safety was evaluated based on adverse events (AEs), laboratory test results, physical examinations, and vital signs. Overall, there were 11 subjects (36.7%) with treatment-related AEs including eight subjects (42.1%) in the ZIKV-Ig group and three subjects (27.3%) in the placebo group. Of the AEs considered treatment related, three subjects (15.8%) experienced headache (mild). There were no serious AEs, no deaths, and no discontinuations resulting from AEs. Overall, the safety profile of ZIKV-Ig in this study population of healthy adult subjects appeared to be safe and well tolerated. The results of the pharmacokinetic analysis determined that ZIKV-Ig had a maximum observed concentration of 182.3 U/mL (coefficient of variation, 21.3%), the time at which Cmax occurred of 2.3 hours +/- 1.0 (SD), an area under the concentration-time curve0-infinity of 77,224 h x U/mL (coefficient of variation, 17.9%), and a half-life of 28.1 days, which is similar to other human-derived commercial Ig intravenous products. FAU - White, Jane AU - White J AD - Emergent BioSolutions Inc., Gaithersburg, Maryland. FAU - Tunga, Priya AU - Tunga P AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. FAU - Anderson, Deborah M AU - Anderson DM AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. FAU - Iledan, Ken AU - Iledan K AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. FAU - Loreth, Tobi AU - Loreth T AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. FAU - Parrera, Geraldine S AU - Parrera GS AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. FAU - Astacio, Hugo AU - Astacio H AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. FAU - Drobic, Bojan AU - Drobic B AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. FAU - Richardson, Jason S AU - Richardson JS AD - Emergent BioSolutions Canada Inc., Winnipeg, Manitoba, Canada. LA - eng SI - ClinicalTrials.gov/NCT03624946 PT - Clinical Trial, Phase I PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20211004 PL - United States TA - Am J Trop Med Hyg JT - The American journal of tropical medicine and hygiene JID - 0370507 RN - 0 (Immunoglobulin G) SB - IM MH - Adult MH - Double-Blind Method MH - Female MH - Humans MH - Immunization, Passive/*methods MH - Immunoglobulin G/immunology/*therapeutic use MH - Male MH - Middle Aged MH - Pharmacokinetics MH - Young Adult MH - Zika Virus/immunology MH - Zika Virus Infection/*therapy PMC - PMC8641324 EDAT- 2021/10/06 06:00 MHDA- 2022/02/22 06:00 PMCR- 2021/10/04 CRDT- 2021/10/05 20:19 PHST- 2020/12/12 00:00 [received] PHST- 2021/08/06 00:00 [accepted] PHST- 2021/10/06 06:00 [pubmed] PHST- 2022/02/22 06:00 [medline] PHST- 2021/10/05 20:19 [entrez] PHST- 2021/10/04 00:00 [pmc-release] AID - tpmd201578 [pii] AID - 10.4269/ajtmh.20-1578 [doi] PST - epublish SO - Am J Trop Med Hyg. 2021 Oct 4;105(6):1552-1562. doi: 10.4269/ajtmh.20-1578.