Precigen IncFDA orphan drug exclusivity prevents similar treatments for 7 years, extending market protection for PAPZIMEOS.

Precigen Inc. has secured FDA orphan drug exclusivity for PAPZIMEOS, a precision medicine for adult recurrent respiratory papillomatosis. The designation prevents the FDA from approving similar treatments for seven years, extending market exclusivity through August 2032. PAPZIMEOS, developed using the company's AdenoVerse platform, uses a modified adenovirus to target HPV 6 and 11 and is currently commercially available across the US. Long-term clinical data presented at the 2026 ASCO Annual Meeting showed that 83% of complete responders remained surgery-free for at least 36 months, with five patients requiring no further interventions beyond four years.
Precigen IncFDA orphan drug exclusivity prevents similar treatments for 7 years, extending market protection for PAPZIMEOS.