Stabilized single-injection inactivated polio vaccine elicits a strong neutralizing immune response

Stephany Y. Tzeng, Kevin J. McHugh, Adam M. Behrens, Sviatlana Rose, James L. Sugarman, Shiran Ferber, Robert Langer, Ana Jaklenec

Research output: Contribution to journalArticlepeer-review


Vaccination in the developing world is hampered by limited patient access, which prevents individuals from receiving the multiple injections necessary for protective immunity. Here, we developed an injectable microparticle formulation of the inactivated polio vaccine (IPV) that releases multiple pulses of stable antigen over time. To accomplish this, we established an IPV stabilization strategy using cationic polymers for pH modulation to enhance traditional small-molecule–based stabilization methods. We investigated the mechanism of this strategy and showed that it was broadly applicable to all three antigens in IPV. Our lead formulations released two bursts of IPV 1 month apart, mimicking a typical vaccination schedule in the developing world. One injection of the controlled-release formulations elicited a similar or better neutralizing response in rats, considered the correlate of protection in humans, than multiple injections of liquid vaccine. This single-administration vaccine strategy has the potential to improve vaccine coverage in the developing world.

Original languageEnglish (US)
Pages (from-to)E5269-E5278
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number23
StatePublished - Jun 5 2018


  • Controlled release
  • Global health
  • Inactivated polio vaccine
  • Single-administration vaccines
  • Vaccine stability

ASJC Scopus subject areas

  • General


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