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Pharma Tech Outlook | Monday, April 26, 2021
The study results indicate preliminary safety and potential efficacy of Lomecel-B in mild Alzheimer's disease, and the company looks forward to initiating the Phase 2 trial in the second half of this year.
FREMONT, CA: Longeveron announces the final results of its Phase I clinical study evaluating the safety and efficacy of intravenous administration of Lomecel-B, an allogeneic bone marrow-derived medicinal signaling cell (MSC) product, in subjects with mild Alzheimer's disease. Preliminary outcomes were previously reported in the Company's S-1/A Registration Statement as part of Longeverons successful Initial Public Offering in 2021. The study met its safety endpoint, which paves the way for future trials in subjects with Alzheimer's disease.
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Several secondary efficacy endpoints and biomarker results help potential benefit from Lomecel-B. The complete trial results are being prepared for publication in a peer-reviewed journal and posted on the firm's website in the future. Longeveron also indicated it is on track to commence a Phase 2 study of Lomecel-B in Alzheimer's disease in the second half of 2021.
Lomecel-B infusion is well-tolerated in this trial, with no treatment-related adverse events observed, including no indications of amyloid-related imaging abnormalities (ARIA) as evaluated by magnetic resonance imaging.
The average Mini-Mental State Exam (MMSE) score declined more slowly in the low-dose Lomecel-B group than the placebo group. At 13 weeks after infusion, the low-dose Lomecel-B group MMSE score was higher (better) compared to placebo. Subjects receiving Lomecel-B had increased serum levels of several pro-vascular biomarkers (VEGF, IL4, and IL-6) relative to the placebo group post-infusion.
There were no changes in the Lomecel-B arms versus the change in placebo for neuronal-related biomarkers examined. MRIs showed an increase in left hippocampus volume in the high-dose Lomecel-B arm versus the change in the placebo group at Week 13, and the difference was no longer significant. The low dose Lomecel-B arm showed no difference versus placebo.
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