• G Bouvenot.
• Académie nationale de médecine, 16, rue Bonaparte, 75006 Paris, France.
• B Acad Nat Med Paris. 2022 Apr 1; 206 (4): 554-558.

AbstractThe arrival of anti-Covid-19 RNA vaccines in 2020 should not obscure the fact that for several years we have already had treatments based on interfering RNA or antisense oligonucleotides in a number of rare diseases with a very poor prognosis such as transthyretin amyloidosis, acute hepatic porphyria, primary hyperoxaluria, spinal muscular atrophy or familial hyperchylomicronemia. If their performance, unlike that of vaccines, is for the moment only qualified as moderate therapeutic progress (moderate clinical added value) in the therapeutic strategies against these diseases, it should be taken into account that their initial evaluation was penalized by a certain number of unfavorable factors: trials of small numbers, therapeutic modalities to be refined, the lack of hindsight on their long-term effects but especially the choice of the moment of the initiation of the treatment in the natural evolution of the sickness. This choice is not trivial because it is hard to imagine that the products used could, beyond a simple stabilization of the disease installed, allow its regression as soon as certain lesions formed are irreversible. This is why their very early implementation, possibly based on genetic screening, is an avenue to be seized in the interest of patients. But, in the competitive context of innovations in the field, interfering RNAs and antisense oligonucleotides will have to reckon with gene therapy and genome editing using the CRISPR-Cas 9 technique.© 2022 l'Académie nationale de médecine. Published by Elsevier Masson SAS. All rights reserved.

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