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Review
. 2022 Sep;62 Suppl 1(Suppl 1):S36-S52.
doi: 10.1002/jcph.2127.

Prenatal Somatic Cell Gene Therapies: Charting a Path Toward Clinical Applications (Proceedings of the CERSI-FDA Meeting)

Affiliations
Review

Prenatal Somatic Cell Gene Therapies: Charting a Path Toward Clinical Applications (Proceedings of the CERSI-FDA Meeting)

Akos Herzeg et al. J Clin Pharmacol. 2022 Sep.

Abstract

We are living in a golden age of medicine in which the availability of prenatal diagnosis, fetal therapy, and gene therapy/editing make it theoretically possible to repair almost any defect in the genetic code. Furthermore, the ability to diagnose genetic disorders before birth and the presence of established surgical techniques enable these therapies to be delivered safely to the fetus. Prenatal therapies are generally used in the second or early third trimester for severe, life-threatening disorders for which there is a clear rationale for intervening before birth. While there has been promising work for prenatal gene therapy in preclinical models, the path to a clinical prenatal gene therapy approach is complex. We recently held a conference with the University of California, San Francisco-Stanford Center of Excellence in Regulatory Science and Innovation, researchers, patient advocates, regulatory (members of the Food and Drug Administration), and other stakeholders to review the scientific background and rationale for prenatal somatic cell gene therapy for severe monogenic diseases and initiate a dialogue toward a safe regulatory path for phase 1 clinical trials. This review represents a summary of the considerations and discussions from these conversations.

Keywords: drug development; fetal medicine; immunopharmacology; neurology; pediatrics; perinatology; pharmacogenetics/pharmacogenomics; rare diseases; regulatory/scientific affairs; women's health.

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Conflict of interest statement

Conflicts of Interest

Anna L. David is the co-chair of the Maternal Health Project Group of ABPI and the Association of British Pharmaceutical Industry (unpaid position), and consults for Esperare Foundation, Geneva, Switzerland, a private not-for-profit developing a prenatal therapy for a congenital skin disease. Stephan J. Sanders receives research funding from BioMarin Pharmaceutical Inc. Charlotte J. Sumner has been a consultant to Avexis, Novartis, Ionis Pharmaceuticals, Biogen, PTC Therapeutics, Roche, Genentech, Cytokinetics, Sarepta, Nura Bio, Argenx, Biomarin, Scholar Rock, GenEdit, Epirium, Capsigen, and Atalanta. She received research grants from Ionis Pharmaceuticals and Argenx, and currently receives grant support from Roche. She is a coholder of two pending patent applications (BIOL0274USA and BIOL0293WO) with Ionis Pharmaceuticals on antisense oligonucleotides targeting SMN-AS1. She receives royalties from Elsevier for the book Spinal Muscular Atrophy: Disease Mechanisms and Therapy (editors, C.J. Sumner, S. Paushkin, C.P. Ko; Elsevier, 2017). Tippi C. MacKenzie current or past research funding from Novartis, BioMarin, and Ultragenyx. She is a member of the Scientific Advisory Board of Acrigen (gene editing company). Larissa Lapteva and Evi Strubble: no conflicts of interest. The opinions presented in this article are those of the authors and do not necessarily represent the views or policies of the Food and Drug Administration. Nalin Gupta is the consultant for Encoded Therapeutics and Sana Therapeutics.

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