🏛️ Verified NIH Record • Updated 2026-04-16

A Phase 2 in Adult Subjects With Hereditary Angioedema (NCT06846398)

A Phase 2, Open-label, Multicenter Study to Assess the Efficacy and Safety of BW-20805 in Adult Subjects With Hereditary Angioedema

🔵 Active, Not Recruiting Phase2 💊 Investigational Drug / Biologic Sponsor: Shanghai Argo Biopharmaceutical Co., Ltd.

🩺 Plain-English Summary (8th-Grade Level)

A Phase 2 in Adult Subjects with Hereditary Angioedema

Who can join: Review the eligibility criteria below.

Location: Institute for Asthma and Allergy - Wheaton — Silver Spring, Maryland

Age range: 18 Years to 70 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (18 Sites)

  • Institute for Asthma and Allergy - Wheaton — Silver Spring, Maryland
  • Washington University School of Medicine — St Louis, Missouri
  • Duke University Medicine Center — Durham, North Carolina
  • Penn State Milton S. Hershey MC - Penn State — Hershey, Pennsylvania
  • Inova Clinical Trials and Research Center — Falls Church, Virginia
  • Peking Union Medical College Hospital — Beijing, Beijing Municipality
  • The First Hospital of Lanzhou University — Lanzhou, Gansu
  • Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology — Wuhan, Hubei
  • Yantai Yuhuangding Hospital — Yantai, Shandong
  • West China Hospital, Sichuan University — Chengdu, Sichaun
  • First Affiliated Hospital of Kunming Medical University — Kunming, Yunnan
  • Universitätsmedizin der Johannes Gutenberg — Mainz, Rhineland-Palatinate
  • Charité - Universitätsmedizin Berlin — Berlin, State of Berlin
  • Azienda Ospedaliero Universitaria Policlinico G. Rodolico San Marco - Ospedale San Marco — Catania, Catania
  • Azienda Ospedaliero-Universitaria Careggi — Florence, Florence
  • Azienda Ospedale - Universita di Padova — Padova, PD
  • SP ZOZ Szpital Uniwersytecki w Krakowie — Krakow, Lesser Poland Voivodeship
  • Hospital Universitario Virgen del Rocío — Seville, Sevilla

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗