Epicrispr raises $90M to rewrite treatment of rare muscle disease on August 11, 2026 DUX4 protein, human EPI-321 Epicrispr epigenetic editing Fidelity Management & Research FOXD3 gene Genus Phalacrocorax (organism) muscle mass Muscular Dystrophy, Facioscapulohumeral Sanofi Ventures Series C +