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Pharma Tech Outlook | Tuesday, July 27, 2021
Denali Therapeutics recently announced additional positive interim data from a Phase 1/2 study examining ETV:IDS (DNL310).
FREMONT, CA: Denali Therapeutics Inc., a biopharmaceutical firm building an extensive portfolio of product candidates designed to cross the blood-brain barrier (BBB) for neurodegenerative diseases, recently announced additional positive interim data from a Phase 1/2 study examining ETV:IDS (DNL310), an investigational brain-penetrant enzyme replacement therapy prescribed to treat both central nervous system (CNS) and peripheral manifestations of Hunter syndrome (MPS II). Safety data up to Weeks 43 and 25 from Cohorts A and B, respectively, and 6-month biomarker data from Cohort A and up to 3-month biomarker data from Cohort B, are among the interim results that were being presented at MPS 2021, the 16th International Symposium on MPS and Related Diseases. At around 11:30 a.m. Eastern Time Denali Management will conduct a webinar for analysts and investors.
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“The longer-term safety data and 6-month biomarker data on DNL310 from Cohort A continue to demonstrate durability of effect with CNS impact, improved peripheral activity after switching from standard of care, and a safety profile consistent with standard of care enzyme replacement therapy,” said Carole Ho, M.D., Denalis Chief Medical Officer. “We are also encouraged by initial indications of improved clinical symptoms and function reported by investigators and parents in all five patients enrolled in Cohort A. In addition, this is the first time we are sharing data from Cohort B, which is designed to inform dose selection, and exploratory biomarker data demonstrate activity of DNL310 across all dose regimens. Based on these data, we are accelerating our efforts to initiate a pivotal Phase 2/3 study of DNL310 in the first half of 2022 and to begin enrolling Cohort C in the Phase 1/2 study to further investigate clinical endpoints.”
Five patients in Cohort A and 12 patients in Cohort B were included in this interim analysis of the Phase 1/2 research. Except for one patient in Cohort B who has non-neuronopathic MPS II disease, all individuals have neuronopathic MPS II disease. In both cohorts, the average age of the patients is six years, with the youngest patients in Cohorts A and B being 5 and 2 years old, respectively. After switching from idursulfase enzyme replacement medication on Day 1 of the research, every patient received weekly IV doses of DNL310. Safety data from Cohorts A and B up to Weeks 43 and 25, respectively, 6-month and up to 3-month biomarker data from Cohorts A and B, and exploratory Clinical Global Impression of Change data from Cohort A up to Week 24 are among the data that are provided.
“DNL310 is our lead program enabled by our blood-brain barrier Transport Vehicle platform, and these data continue to validate the platforms potential as we advance additional TV-enabled programs toward the clinic,” said Ryan Watts, Ph.D., Denalis Chief Executive Officer. “Our DNL310 program exemplifies application of Denalis core scientific principles to increase likelihood of success by targeting degenogenes, engineering therapeutics to cross the blood-brain barrier, and using biomarkers to inform development. We are encouraged by these interim data, and we look forward to continued collaboration with the community to advance MPS II research and DNL310 as a potential treatment for affected individuals and their families.”
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