The definitive guide to gene editing.
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Treatments

Approved Gene-Editing Therapies

Every gene-editing medicine that a national regulator has authorised, worldwide.

How this list is built

This list is deliberately short, and its shortness is the point. Enormous scientific progress has so far produced a very small number of approved editing medicines. Everything else on this site that sounds promising is research.

#EntryCategory Status
1 Casgevy (exagamglogene autotemcel) The first CRISPR-based medicine approved anywhere in the world: a one-time therapy made… Sickle cell disease; beta thalassemia Approved
2 Lyfgenia (lovotibeglogene autotemcel) Approved on the same day as Casgevy for sickle cell disease, but a gene-addition therapy… Sickle cell disease Approved
3 Zynteglo (betibeglogene autotemcel) An approved gene-addition therapy for transfusion-dependent beta thalassemia: the… Beta thalassemia Approved
What this list does not tell youApproval is country-specific and does not mean a treatment is available, affordable or suitable for any individual. This list includes gene-addition therapies where they are approved for the same conditions, clearly labelled, because the distinction is the point.
Written by CRISPR Decoded editorial team Last updated Oct 27, 2026