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Precigen Surges After FDA Approves Papzimeos Therapy

FDA approves Papzimeos for recurrent respiratory papillomatosis, sending Precigen stock higher and shifting the company’s growth outlook.

August 15, 2025 at 12:07 PM
blur Precigen Stock (PGEN) Roars Over 60% Higher on FDA Green Light for Papzimeos Therapy

The FDA approval of Papzimeos for recurrent respiratory papillomatosis could shift care for patients and reshape Precigen’s financial outlook.

Precigen Surges After FDA Approves Papzimeos Therapy

Precigen shares jumped after the FDA cleared Papzimeos, the first therapy approved to treat recurrent respiratory papillomatosis (RRP).
The decision rests on early to mid stage data showing 51% of patients needed no surgeries in the 12 months after treatment, a result that could reduce repeated procedures for many patients.
Analysts welcomed the move and noted the potential for meaningful revenue as access expands, while the company faces the usual hurdles of drug development and payer coverage.

In the quarter, Precigen posted a net loss of 26.6 million dollars, with revenues of 856 thousand dollars, underscoring how much the business remains tied to product approvals and market uptake.

Key Takeaways

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FDA approval for Papzimeos marks a milestone for RRP treatment
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About half of patients avoided surgeries in 12 months in trials
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Analysts see a potential revenue path despite high uncertainty
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Precigen’s quarterly results show continuing losses despite growth signals
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Peer expectations hinge on payer coverage and market access
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JP Morgan cites removal of regulatory overhang as a key upgrade driver
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Longer term depends on manufacturing scale and real-world uptake

"For more than a century, since RRP was first recognized as a distinct disease, patients have had to rely on repeated surgeries to manage this relentless condition. Today marks a historic turning point. With the landmark FDA approval all adult RRP patients are now eligible for access to the first and only approved therapy that targets the root cause of the disease"

Helen Sabzevari, CEO of Precigen, on the FDA decision

"Everybody is anxiously awaiting a new treatment for this disease. The patients are and the surgeons are. There’s nothing more frustrating than doing a surgery and then having the patient come back six months later"

Simon Best, Johns Hopkins Otolaryngology associate professor

"The approval was based on an early-to-mid-stage study data that showed 51% of patients required no surgeries in the 12 months after the treatment"

Key data point behind the approval

The approval changes the regulatory narrative around Precigen, reducing a major overhang that has weighed on the stock. It also drafts a new financial chapter where revenue depends on uptake, pricing, and payer acceptance rather than on research milestones alone. The path to profitability will hinge on manufacturing scale, access across insurers, and competition from other therapies in the rare disease space.
A broader market question is whether this milestone translates into durable growth. If Papzimeos reaches a wide patient base, the upside could meet or exceed early forecasts, but any delay in reimbursement or weaker-than-expected adoption could blunt gains. The narrative now shifts from approvals to execution.

Highlights

  • Hope finally meets a treatment option
  • A turning point that reshapes patient journeys
  • Investors move fast when a real option opens
  • Access will be the real measure of value this year

Financial and regulatory risk for Precigen

The company faces ongoing losses and relies on drug uptake for profitability. Payer coverage, reimbursement decisions, and manufacturing scale will influence financial outcomes and stock performance.

As the field watches for payer decisions and patient access, the real proof will be in how quickly care pathways adapt to a new option.

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