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Defibrotide Injection

IRCCS San Raffaele · Phase 2 active Small molecule

Phosphodiesterase inhibitor

Defibrotide Injection, developed by IRCCS San Raffaele, is a promising treatment for various conditions including thrombotic microangiopathy and severe COVID-19. Currently in multiple Phase 2 trials, it shows potential in preventing and treating respiratory distress and cytokine release syndrome. The drug has no FDA label but is actively being studied for its safety and efficacy.

At a glance

Generic nameDefibrotide Injection
SponsorIRCCS San Raffaele
Drug classPhosphodiesterase inhibitor
TargetPhosphodiesterase
ModalitySmall molecule
Therapeutic areaOncology
PhasePhase 2

Mechanism of action

Defibrotide is a mixture of single-stranded oligonucleotides that inhibit the activity of phosphodiesterase, leading to an increase in cyclic AMP levels and a subsequent decrease in platelet activation.

Approved indications

Common side effects