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Upstream Bio Presents New Responder Analyses Demonstrating Clinically Meaningful Improvements in CRSwNP in Significant Majority of Participants Treated with Verekitug in the Phase 2 VIBRANT Trial at EAACI 2026

$UPBPress releaseJun 14, 2026, 10:00 AM ETRead the release

Upstream Bio presented new responder analyses from the Phase 2 VIBRANT trial of verekitug in CRSwNP, showing that 79% of treated participants achieved clinically meaningful improvements in nasal polyp score. The drug also drove high responder rates across secondary endpoints: 83% in total symptom score, 78% in Lund-Mackay CT score, 72% in nasal congestion, and 69% in sense of smell, all significantly outperforming placebo.

Key figures

Drug Name
verekitug
Phase Of Trial
Phase 2
Nps responder rate
79%
Trial participants
81
Smell responder rate
69%
Phase 3 initiation target
Q1 2027
Lund mackay responder rate
78%
Total symptom responder rate
83%
Nps placebo adjusted reduction
-1.95
Nasal congestion responder rate
72%
Surgery corticosteroid reduction
76%

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