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Obefazimod · ABX-464, SPL-464

Small molecule · Inhibitor of cap binding complex (CBC) 80/20 · developed by Abivax

Phase 3 Most advanced trial
ABVX Developer
7 Registered trials

What is Obefazimod?

Obefazimod is an orally available small molecule that binds the cap binding complex (CBC) 80/20 at the 5'-end of pre-mRNA transcripts. It inhibits HIV-1 replication by preventing Rev-mediated export of unspliced viral transcripts and upregulates the anti-inflammatory microRNA miR-124, reducing production of inflammatory mediators including IL-6, TNF-alpha, and CCL2. It is studied in HIV infection, Crohn disease, ulcerative colitis, and rheumatoid arthritis.

Summary written with AI from the sources listed at the end of this page.

At a glance

Also known as
ABX-464, SPL-464
Drug type
Small molecule
Targets
cap binding complex (CBC) 80/20, HIV-1 Rev protein (secondary target)
Mechanism
Inhibitor of cap binding complex (CBC) 80/20
Pathways
splicing of viral RNA, miR-124 upregulation, anti-inflammatory signaling, IL-6 reduction, TNF-alpha reduction
Therapy area
Gastroenterology, Immunology
Developer
Abivax S.A. (ABVX)
FDA status
Investigational, not approved in the US. Most advanced trial: Phase 3
UNII
26RU378B9V

🧪 Clinical trials

TrialPhaseConditionStatusSponsor
NCT05535946 Phase 3 Ulcerative Colitis Active not recruiting ABVX
NCT06456593 Phase 2 Moderately to Severely Active Crohn Disease Recruiting ABVX
NCT03760003 Phase 2 Ulcerative Colitis Completed ABVX
NCT03813199 Phase 2 Rheumatoid Arthritis Completed ABVX
NCT02990325 Phase 1/2 HIV Infections Completed ABVX
NCT07453784 Phase 1 Healthy Recruiting ABVX
NCT02731885 Phase 1 Healthy Volunteers Completed ABVX

Trials of the companies BioRadar tracks, from ClinicalTrials.gov, most advanced phase first.

Conditions studied

HealthyModerately to Severely Active Crohn DiseaseHealth VolunteersHealthy VolunteersHIV InfectionsRheumatoid ArthritisUlcerative Colitis

More from Abivax

Sources

Updated Oct 3, 2026. Something wrong or missing? Report it on the ABVX page.

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Data: FDA (Drugs@FDA, Purple Book, DailyMed), NIH (NCI Thesaurus, GSRS, RxNorm), ClinicalTrials.gov • Informational purposes only, not medical or investment advice. • All drugs A–Z

This data is for informational purposes only, not investment advice. BioRadar does not provide buy/sell recommendations. Past performance does not guarantee future results. Always do your own due diligence.