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PepGen: Positive Data from Phase 1 Trial of PGN-EDO51

September 28, 2022

PGN-EDO51 is the clinical candidate for the treatment of Duchenne muscular dystrophy amenable to exon 51 skipping. It is the first of a series of “enhanced delivery oligonucleotides” (EDOs) that are being investigated for a number of indications, including Duchenne amenable to the skipping of other exons.

PepGen’s Phase 1 study of PGN-EDO51 was a single ascending dose clinical trial evaluating the safety and tolerability of PGN-EDO51 in 32 healthy adult males. It found that:

  • PGN-EDO51 exhibited the highest levels of oligonucleotide delivery to muscle that have been reported in single-dose human studies to date. 
  • PGN-EDO51 exhibited the highest levels of exon skipping that have been reported in single-dose human studies to date. 
  • PGN-EDO51 was generally well tolerated.

Based on these exciting results, PepGen plans to initiate a multiple ascending dose clinical trial in people with DMD amenable to exon 51 skipping in the first half of 2023 and will consider sites in Canada. They will also report data on their earlier stage candidates for skipping exons 53, 45 and 44 over the next months.

“We are very grateful to the Duchenne community, which has worked closely with us as we are designing our clinical programs.  We look forward to sharing more information with you about these results and those from our other Duchenne programs, as well as further information about our upcoming trial over the next months.”

Jane Larkindale, Vice President Clinical Science at PepGen

Do you have questions about clinical trials or exon skipping therapies? Please email our National Vice President of Research, Education and Advocacy, Nicola Worsfold: [email protected].