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IMUNON’s DNA Vaccine Shows Strong Immune Response in Phase 1 Trial

IMUNON’s IMNN-101 vaccine proves safe, effective, and durable in early human trials against COVID-19.

Mrudula Kulkarni
By Mrudula Kulkarni
Managing Editor - Pharma Now
Feb 27, 2025Updated Jun 26, 2025 · 2 min read
IMUNON’s DNA Vaccine Shows Strong Immune Response in Phase 1 Trial
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Reviewed by Mrudula Kulkarni, Managing Editor - Pharma Now

IMUNON, Inc. has announced promising results from its Phase 1 clinical trial of IMNN-101, a DNA-based vaccine developed using its proprietary PlaCCine® technology. The trial, which involved 24 participants, showed that a single dose of IMNN-101 was not only well-tolerated but also induced a significant immune response. Participants experienced a two- to four-fold increase in neutralizing antibodies against the Omicron XBB.1.5 variant, with immunity continuing to strengthen over four weeks. Unlike existing mRNA vaccines, IMNN-101 offers greater stability at workable temperatures, making it a potential game-changer in vaccine technology.

Dr. Stacy Lindborg, CEO of IMUNON, emphasized the vaccine’s potential to address future health threats, citing its strong immunogenicity and durability. The trial’s success supports further development and potential partnerships for advancing the PlaCCine platform. Given its ability to provide robust protection without the need for booster doses, IMNN-101 could emerge as a next-generation vaccine capable of efficiently tackling emerging variants. Researchers are optimistic about its long-term benefits and are exploring opportunities to bring this innovation to a broader market.

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Mrudula Kulkarni
Written by
Mrudula Kulkarni
Managing Editor - Pharma Now

My international experience as a researcher in Taiwan for three years has equipped me with a global perspective, enabling me to create content that resonates with an international audience.



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