Drugs / Plonmarlimab
last change Mar 2026 re-read 2 minutes ago

Plonmarlimab

also known as TJ003234 · TJM-2

Monoclonal antibody targets CSF2 via inhibition

Developed for
COVID-19 · gout · hemophagocytic syndrome · rheumatoid arthritis · secondary hemophagocytic lymphohistiocytosis
Investigated by
I-Mab Biopharma US Limited · TJ Biopharma Co., Ltd.

Trials 6 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 12 trials
Phase 1 NCT04457856 Aug 2020 → Mar 2023 rheumatoid arthritis I-Mab Biopharma US Limited Unknown No outcome recorded
Phase 1 NCT03794180 Mar → Sep 2019 I-Mab Biopharma US Limited Completed No outcome recorded
Phase 22 trials
Phase 2 NCT07453004 Mar 2026 → Dec 2027 expected gout TJ Biopharma Co., Ltd. Recruiting No outcome recorded
Phase 2 NCT07034209 Apr 2023 → Apr 2025 hemophagocytic syndrome TJ Biopharma Co., Ltd. Completed No outcome recorded
Phase 2/31 trial
Phase 2/3 NCT04341116 Apr 2020 → Feb 2022 COVID-19 I-Mab Biopharma US Limited Completed No outcome recorded
Phase 31 trial
Phase 3 NCT07208058 Nov 2025 → Dec 2026 expected secondary hemophagocytic lymphohistiocytosis TJ Biopharma Co., Ltd. Recruiting No outcome recorded

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 7 sources stand behind the page.

FieldValueCited text
Known as Plonmarlimab ClinicalTrials.gov intervention name — accepted as the source's own label NCT07034209
2

NCT07453004

NCT07208058

Known as TJ003234 ClinicalTrials.gov intervention name — accepted as the source's own label NCT04457856
2

NCT03794180

NCT04341116

Known as TJM-2 ChEMBL registry synonym — accepted as the source's own label CHEMBL4650518
Action Inhibit “Anti-Granulocyte-macrophage Colony-stimulating Factor (GM-CSF) Monoclonal Antibody” NCT03794180
1

“Granulocyte-macrophage colony-stimulating factor antagonist” CHEMBL4650518

Modality Monoclonal antibody “Brownish-yellow liquid containing TJ003234, a recombinant humanized immunoglobulin (Ig) G1 monoclonal antibody diluted with normal saline” NCT03794180
1

CHEMBL4650518

Route Intravenous “administered as an intravenous (IV) infusion” NCT03794180
Target CSF2 “Granulocyte-macrophage colony-stimulating factor antagonist” CHEMBL4650518