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A Phase 1b/2a Study of Budoprutug in Systemic Lupus Erythematosus (SLE)
Sponsor: Climb Bio, Inc.
Summary
Budoprutug is a humanized, immunoglobulin (Ig) G1 monoclonal antibody that selectively binds to CD19 and is projected to deplete targeted cells through antibody-dependent cellular cytotoxicity. This Phase 1b/2a, open-label study will evaluate budoprutug in ascending dose cohorts of patients aged 18 years and above with active, seropositive SLE and inadequate response to standard therapy. The study will also assess the pharmacokinetics, pharmacodynamics and early indications of efficacy of budoprutug in SLE, where pharmacodynamics will be evaluated as the change in the number of B cells and immunoglobulins (antibodies) in the blood over time. Budoprutug will be administered as two (2) IV infusions 14 days apart in ascending dose cohorts.
Official title: A Phase 1b/2a Open-Label, Dose-Escalation and Dose-Expansion Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Budoprutug (TNT119) in Adult Subjects With Systemic Lupus Erythematosus (SLE)
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2026-06
Completion Date
2027-09
Last Updated
2026-05-04
Healthy Volunteers
No
Conditions
Interventions
Budoprutug
Single IV dose of study product on Day 1 and Day 15
Locations (1)
Peking University People's Hospital
Beijing, China