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A unique case of vision loss in a patient with hypotrichosis and juvenile macular dystrophy and primary ciliary dyskinesia(2019)

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zur Wikipedia-Seite:
https://it.wikipedia.org/wiki/Ipotricosi_con_distrofia_maculare_giovanile
Danke an Tami & Nino Pizza&Pasta @Laube.HN
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The photoreceptors of the retina are afflicted by diseases that still often lack satisfactory treatment options. Although suitable drugs might be available in some cases, the delivery of these compounds into the eye and across the blood–retinal barrier remains a significant challenge for therapy development. Here, we review the routes of drug administration to the retina and highlight different options for drug delivery to the photoreceptor cells.

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Quelle:
https://www.sciencedirect.com/science/article/pii/S1359644618305117?via%3Dihub

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The technology behind the eye drops is a cell-penetrating peptide that can deliver the drug to the retina (the back of the eye).
Link zum Artikel auf Drugtargetreview

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Abstract
ELX‐02 is an investigational synthetic eukaryotic ribosome–selective glycoside optimized as a translational read‐through molecule that induces read through of nonsense mutations, resulting in normally localized full‐length functional proteins. ELX‐02 is being developed as a therapy for genetic diseases caused by nonsense mutations. Two phase 1a, randomized, double‐blind placebo‐controlled, single‐ascending‐dose studies were conducted in healthy human subjects to evaluate the safety and pharmacokinetics of ELX‐02. Single subcutaneously injected doses of ELX‐02 between 0.3 mg/kg and 7.5 mg/kg showed an acceptable safety profile without severe or serious drug‐related adverse events, including a lack of renal and ototoxicity events. Injection of ELX‐02 resulted in a rapid time to peak concentration and elimination phase, with complete elimination from the vascular compartment within 10 hours. ELX‐02 area under the concentration‐time curve to infinity showed dose‐exposure linearity (24‐fold increase for a 25‐fold dose increase), and the maximum concentration showed dose proportionality (17‐fold increase for a 25‐fold increase). The mean apparent volume of distribution was dose dependent, suggesting an increased distribution and tissue uptake of ELX‐02 at higher doses. The primary route of excretion was in the urine, with the majority of the compound excreted unchanged. These results support the evaluation of the safety, pharmacokinetics, and efficacy of repeat dosing in future studies.

Quelle: Icon for Wiley
Clinical Pharmacology in Drug Development Published by Wiley Periodicals, Inc. on behalf of The American College of Clinical Pharmacology

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Abstract. Choroideremia (CHM) is an x-linked recessive chorioretinal dystrophy, with 30% caused by nonsense mutations in the CHM gene resulting in an in-frame

Quelle: Nonsense-mediated mRNA decay efficiency varies in choroideremia providing a target to boost small molecule therapeutics

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zum Artikel auf der Seite von Foundation Fighting Blindness

Eloxx entwickelt wie PTC Therapeutics einen Wirkstoff, welcher in der Lage
ist Nonsene Mutationen zu überlesen.

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