Daily Newsletter

29 August 2023

Daily Newsletter

29 August 2023

Atsena doses first patient in retinoschisis therapy trial

Safety and tolerability, as evaluated by dose-limiting toxicities, are the primary outcome measures of the study.

August 28 2023

Atsena Therapeutics has dosed the first patient in the Phase I/II LIGHTHOUSE study of ATSN-201 to treat X-linked retinoschisis (XLRS).

The dose-escalation and dose-expansion study intends to assess the tolerability and safety of subretinal injection of ATSN-201 for five years.

Nearly 18 male patients aged six to 64 years with a clinical diagnosis of XLRS, caused by pathogenic or likely pathogenic mutations in RS1, will be included in the study.

They will receive a one-time subretinal injection of ATSN-201 in one eye.

Safety and tolerability, as evaluated by dose-limiting toxicities and treatment-emergent adverse events, are the primary outcome measures of the study.

Atsena Therapeutics chief medical officer Kenji Fujita said: “We are excited to be utilising AAV.SPR in the clinic, as it has the potential to revolutionise the treatment of XLRS, as well as other inherited retinal disorders.

“Spreading laterally beyond the subretinal injection site, AAV.SPR facilitates the safe delivery of RS1 to photoreceptors in the central retina/fovea.

“We look forward to advancing the LIGHTHOUSE study and the continued development of our novel gene therapies to reverse or prevent blindness.”

ATSN-201 is a part of the company’s two clinical-stage programmes that include ATSN-101 for treating GUCY2D-associated Leber congenital amaurosis.

Clinically meaningful improvements in vision were observed six months post-treatment with ATSN-101, as demonstrated in an ongoing Phase I/II study.

The company’s product portfolio also includes ATSN-301, a dual AAV vector-based gene therapy to prevent blindness from MYO7A-associated Usher syndrome.

mRNA vaccines represent >40% of the authorized/approved COVID-19 vaccines and boosters in the 7 major pharmaceutical markets

There are currently 13 authorized/approved COVID-19 vaccines in the 7 major pharma markets. Currently, vaccine developers plan to launch updated boosters prior to the upcoming 2023 fall season to target the latest dominant strain, Omicron XBB.1.5. Per GlobalData analysis, mRNA vaccines will likely continue to dominate the market, though as the pandemic winds down, the global COVID-19 vaccines market is expected to decline.

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