
Precigen’s PAPZIMEOS Receives Full FDA Approval as First Therapy for Adults with Recurrent Respiratory Papillomatosis

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Precigen Inc. announced that PAPZIMEOS™ (zopapogene imadenovec-drba) received full FDA approval in August 2025 as the first therapy for adults with recurrent respiratory papillomatosis (RRP). The approval is based on pivotal study results showing durable responses and reduced surgery needs among patients, with no new safety events reported during long-term follow-up. This marks a significant milestone for treatment options in RRP.
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