Zopa Retreatment and Vector Shedding in Adults With RRP — Stella

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Zopa Retreatment and Vector Shedding in Adults With RRP — Stella

Home/Recurrent Respiratory Papillomatosis/

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Phase 4 — Post-approval study. The treatment has been approved, but researchers continue monitoring it in a large population over time.

Trial locations(3 sites)

United States

Winship Cancer Institute, Emory University, Atlanta, Georgia

National Institute of Health, Bethesda, Maryland

University of Cincinnati, Cincinnati, Ohio

Key details

Phase

Post-approval study

Sponsor

Precigen, Inc

Enrollment target

~30 participants

Started

July 2024

Primary completion

December 2027

Age range

18 Years and older

Last updated December 2025

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