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Review
. 2025 Jul;25(7):e402-e415.
doi: 10.1016/S1473-3099(24)00750-3. Epub 2025 Feb 27.

Zika virus vaccines and monoclonal antibodies: a priority agenda for research and development

Collaborators, Affiliations
Review

Zika virus vaccines and monoclonal antibodies: a priority agenda for research and development

Julia T Ostrowsky et al. Lancet Infect Dis. 2025 Jul.

Abstract

The 2015-16 Zika virus epidemic in the Americas drew global attention to Zika virus infection as a cause of microcephaly and Guillain-Barré syndrome. The epidemic highlighted the urgent need for preventive measures, including vaccines and monoclonal antibodies (mAbs). However, nearly 9 years later, no licensed Zika virus vaccines or mAbs are available, leaving the world's populations unprotected from ongoing disease transmission and future epidemics. The current low Zika virus incidence and unpredictability of future outbreaks complicates prospects for evaluation, licensure, and commercial viability of Zika virus vaccines and mAbs. We conducted an extensive review of Zika virus vaccines and mAbs in development, identifying 16 vaccines in phase 1 or phase 2 trials and three mAbs in phase 1 trials, and convened a 2-day meeting of 130 global Zika virus experts to discuss research priorities to advance their development. This Series paper summarises a priority research agenda to address key knowledge gaps and accelerate the licensure of Zika virus vaccines and mAbs for global use.

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Conflict of interest statement

Declaration of interests This project was funded by the Wellcome Trust, grant 226438/Z/22/Z awarded to the Center for Infectious Disease Research and Policy at the University of Minnesota. LCK is supported by the US National Institutes of Health (NIH). ADTB and DWCB declare a subcontract from Hawaii Biotech related to testing of West Nile virus vaccine candidates in small animal models. EH declares grant U01 AI153416 from the NIH. SJT declares a previous grant from NIH National Institute of Allergy and Infectious Disease on dengue (which included Zika epidemiology) and a previous contract with Moderna as a Data and Safety Monitory Board member for a Zika vaccine trial (activities completed), contracts for dengue committee memberships, and a patent and royalties related to his role as inventor of a Zika vaccine candidate, ZPIV (patent awarded by the US Patent and Trademark Office), and all rights assigned to the US Army. MSD declares grants from Moderna, Vir Biotechnology, Bavarian Nordic, and IntegerBio; royalties or licenses from Ocugen, AstraZeneca, and BharatBiotech; consulting fees from Moderna, InBios, GlaxoSmithKline, Merck, IntegerBio, Vir Biotechnology, and Akagera Medicines; and stock or stock options from IntegerBio and Vir Biotechnology. Wellcome Trust provided travel support to the December, 2023, meeting on Zika and arboviruses for JTO, EH, EML, ADTB, DWCB, NB, TL, AJM, AKU, MTO, and SJT. All other authors declare no competing interests. No authors were paid by a pharmaceutical company to write this Series paper. The authors alone are responsible for the views expressed in this article and they do not necessarily represent the views, decisions, or policies of the institutions with which they are affiliated. Mention of trade names is for information only and does not imply endorsement.

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