Pipeline

GenSight Biologics has two product candidates in clinical development for inherited retinal diseases that lead to severe vision loss. The products combine gene therapy with proprietary technologies, with the goal of preserving and restoring vision.

Program
Platform
Indication
Preclinical
Phase 1
Phase 1/2
Phase 2
Phase 3
Registration
Commercial
GS010 / LUMEVOQ®
MTS
ND4-LHON (Leber Hereditary Optic Neuropathy)
Preclinical
Phase 1
Phase 1/2
Phase 2
Phase 3
Registration
Commercial
Phase 3

GS010/LUMEVOQ® is an investigational gene therapy for the treatment of LHON caused by an ND4 mutation. The world’s most prevalent mitochondrial disease, LHON causes rapid and typically irreversible vision loss, especially among young adults. Using our proprietary MTS platform, GS010 delivers a functional ND4 protein directly to the mitochondria, addressing the disease at its source. The treatment is administered as a single intravitreal injection per eye.

GS010/LUMEVOQ® has not been granted marketing authorization in any country and is not commercially available. Subject to product availability, specific regulatory conditions and authorization from relevant national or local authorities, GS010 may be available for early access/expanded access/compassionate use. For information about Early / Expanded Access, click here.

Clinical Trial Objective Phase Status Details

REVISE Clinical Study Rationale: 

The REVISE Phase 2 trial addresses a request from the French medicines agency (ANSM) to provide more data on the dosage of the product to inject, given our decision to change the assay we use to measure the concentration of the therapeutic virus in GS010 vials. The new test, which will be used to release future batches, is based on a more robust (less variable) method compared to the test that had been available at the start of our previous Phase 3 trials.


RECOVER Clinical Trial Rationale: 

The previous Phase 3 trials (RESCUE, REVERSE and REFLECT) could not meet the pre-defined efficacy endpoint because of a novel scientific insight that the trials uncovered. When one of the patient's eyes was treated with GS010 gene therapy, the untreated eye also improved significantly (the "contralateral effect"). This unexpected treatment outcome eliminated the control group (sham-treated eyes), which had been agreed with regulatory agencies.

Designed in consultation with regulatory agencies in the U.S. and E.U., RECOVER seeks to demonstrate the efficacy of bilateral GS010 injections against placebo; the trial’s design removes the confounding impact of a contralateral effect while assuring that the trial is well-controlled.

GS030
Optogenetics
Retinitis Pigmentosa (RP)
Preclinical
Phase 1
Phase 1/2
Phase 2
Phase 3
Registration
Commercial
Phase 1/2
GS030 is an investigational optogenetic therapy for the treatment of RP, a group of inherited retinal diseases (that can be caused by over 100 genes) that lead to progressive loss of vision, resulting in blindness. Using optogenetics, GS030 employs a mutation-agnostic approach that bypasses the damaged photoreceptor cells entirely and makes undamaged retinal ganglion cells responsive to light. The treatment consists of a single intravitreal injection per eye followed by the use of a light-stimulation device.
Clinical Trial Objective Phase Status Details

A New Chapter

Founded in 2012 to realize the potential of gene therapy, GenSight Biologics has grown into a clinical-stage company advancing multiple programs. In 2024, under a new management team, the company entered a new phase and is now accelerating its clinical and regulatory activities.

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GenSight Biologics S.A.
74 rue du Faubourg Saint-Antoine
75012 Paris
France