Reimagining what’s possible for patients living with GA.

Geographic Atrophy

KRIYA.825 is a one-time inves­ti­ga­tion­al gene therapy designed to inhibit complement activity, aimed at slowing Geographic Atrophy (GA) lesion growth and vision loss. 

Retinal scan showing the optic disc and pale deposits across the macula

GA is the advanced form of dry age-related macular degen­er­a­tion (dry AMD) and a leading cause of vision loss in older adults. It causes retinal cell damage and cell death, resulting in progressive, permanent loss of sight.

KRIYA.825
How it works

In GA, the inflam­ma­tion and degen­er­a­tion are mediated by complement. KRIYA.825 is engineered to deliver genetic instruc­tions encoding a fusion protein (a portion of Complement Receptor 2 fused to a portion of Complement Receptor 1, or CR2-CR1) directly to retinal cells. The CR1 component of the fusion protein is designed to inhibit the complement cascade at the level of C3 and C5 convertase, thereby blocking activation of the alternative and classical complement pathways. The CR2 component is designed to concentrate the activity of the molecule in a targeted manner at the sites of complement deposition on cell surfaces.

Loading…

Spec­i­fi­ca­tions

IndicationGeographic atrophy (GA) secondary to dry age-related macular degen­er­a­tion (dry AMD)
ModalityAAV-based gene therapy
MechanismInhibition of complement C3 and C5 pathway activity
PayloadCR2-CR1 fusion protein
DeliverySupra­choroidal injection, outpatient
Dosing frequencySingle admin­is­tra­tion
Potential patient impact~2 million, US and EU
StagePhase 1/2

Disclaimer

Kriya’s durable medicines are inves­ti­ga­tion­al and have not been approved as safe or effective by any regulatory health authority.