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‹ Mon · 20 Jul 2026
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Prolonged CD38 targeting with felzartamab in antibody-mediated kidney transplant rejection: a biomarker-guided open-label phase 2 extension.

A targeted antibody halted kidney transplant rejection and reduced inflammation markers in nearly two-thirds of patients by using a simple blood test to guide treatment doses.

Felzartamab (anti-CD38) re-dosing guided by dd-cfDNA monitoring reduced microvascular inflammation to score 0 in 64% of AMR kidney transplant patients (11/11) at week 52; stable graft function; dd-cfDNA-guided dosing was feasible with variable dose requirements. This record was retained from the prior triage attempt for PubMed pipeline handoff.

What the study was

Study design
open_label_phase_2_extension
Category
novel_therapeutics
Maturity
Validated
Journal
The Lancet Regional Health – Europe

Why it surfaced

Phase 2 extension (Lancet Regional Health Eur) of anti-CD38 therapy for AMR with novel dd-cfDNA biomarker-guided dosing; high unmet need in transplant medicine; direct relevance to precision immunology and liquid biopsy pipeline.

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