Evidence map›Paper›PMID 41061187›Full record

ArticleBlood advances2026

Effect of obexelimab on the production of anti-RBC antibodies and cytokines in patients with warm autoimmune hemolytic anemia.

Bruno Fattizzo, Anna Zaninoni, Giacinto Luca Pedone, Marta Bortolotti, Francesco Passamonti, Wilma Barcellini

Abstract read
In one paragraph

Article in Blood advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Bruno FattizzoSC Ematologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.ORCID 0000-0003-0857-8379
Anna ZaninoniSC Ematologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
Giacinto Luca PedoneSC Ematologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.ORCID 0009-0000-7727-2766
Marta BortolottiSC Ematologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.ORCID 0000-0001-5147-970X
Francesco PassamontiSC Ematologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.ORCID 0000-0001-8068-5289
Wilma BarcelliniSC Ematologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.ORCID 0000-0003-1428-9944

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

abstractObexelimab is a bifunctional, nondepleting, humanized monoclonal antibody that binds CD19 and FcγRIIb to inhibit the activity of B-lineage cells. It is currently being evaluated in humans with various autoimmune diseases, including warm autoimmune hemolytic anemia (wAIHA). In this study, we evaluated the in vitro effect of obexelimab on the production of anti-red blood cell (anti-RBC) autoantibodies and cytokines in blood samples collected from a cohort of patients with wAIHA followed at a single tertiary hematological center. Obexelimab reduced the production of anti-RBC autoantibodies by 25% in unstimulated cultures and by 5% to 10% in phytohemagglutinin (PHA)-stimulated cultures, both at 15 and 405 μg/mL. In pokeweed (PWM)-stimulated cultures, obexelimab reached an inhibition of 35% at 405 μg/mL. Obexelimab (15 μg/mL) reduced interleukin-10 (IL-10) production in PHA-stimulated cultures from patients with wAIHA. Moreover, it induced an increase in interferon gamma, IL-2, and IL-17 production (∼20%-30%) and a milder increase in tumor necrosis factor α, IL-10, and transforming growth factor β (∼10%), in PWM-stimulated cultures. Soluble receptor IL-2Ra was slightly reduced and apoptosis antigen 1/FAS was minimally increased in PWM-stimulated blood cell cultures treated with obexelimab (15 μg/mL). Collectively, these findings support the notion that obexelimab exerts an immunomodulatory effect on RBC-specific autoantibody and cytokine production in wAIHA.

Indexed as

Anemia, Hemolytic, AutoimmuneAntibodies, Monoclonal, HumanizedAutoantibodiesCytokinesErythrocytesAdultAgedFemaleHumansMaleMiddle AgedAntibodies, Monoclonal, HumanizedAutoantibodiesCytokines

Identifiers

PMID41061187
PMCPMC12804114

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.