CytoAgents is a Pittsburgh company developing CTO1681, a tablet meant to prevent cytokine release syndrome, a dangerous immune over-reaction that can follow CAR-T cell therapy. It is being tested in an early trial.
CytoAgents, Inc., based in Pittsburgh, says it was founded in 2018 with a focus on cytokine release syndrome (CRS). Its compound CTO1681 is described by the company as an orally available, steroid-sparing inhibitor of prostaglandin and prostacyclin-mediated inflammation; the website now also lists pulmonary arterial hypertension, asthma, atopic dermatitis and inflammation in the tumour microenvironment as indications. CytoAgents sponsors NCT05905328, a phase 1/2 trial of CTO1681 for the prevention and treatment of CRS in patients receiving CAR T-cell therapy, which ClinicalTrials.gov lists as recruiting. A 2026 National Cancer Institute SBIR award funds work on CTO1681 to prevent and mitigate CRS in people with multiple myeloma receiving CAR T-cell therapy.
Investors not recorded; see the round sources.
| Round | Year | Amount | Source |
|---|---|---|---|
| Grant · NCI SBIR (R44) award 5R44CA295189-02: CTO1681 to prevent and mitigate cytokine release syndrome in multiple myeloma patients receiving CAR T-cell therapy | 2026 | $936K | reporter.nih.gov |
Amounts only where the cited source states them. Rounds without a public source are not listed.
CTO1681 is a tablet from CytoAgents meant to prevent and treat cytokine release syndrome, an immune over-reaction that can follow CAR-T cell therapy for blood cancers.
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