Mesoblast (MESO) Announces Publication of Positive MPC-300-IV Phase 2 Data
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Mesoblast Limited (Nasdaq: MESO) announced that results from the randomized, placebo-controlled Phase 2 trial of its proprietary allogeneic Mesenchymal Precursor Cell (MPC) product candidate, MPC-300-IV, in patients with diabetic kidney disease have been published in the current issue of the peer-reviewed journal EBioMedicine.
The paper, entitled ‘Allogeneic Mesenchymal Precursor Cells (MPC) in Diabetic Nephropathy: A Randomized, Placebo Controlled, Dose Escalation Study’, concluded that a single intravenous infusion of MPC-300-IV was well tolerated and had positive effects on renal function at the 12-week primary endpoint in a Phase 2 trial in adult patients with type 2 diabetic nephropathy. The study was conducted by researchers at the University of Melbourne, Epworth Medical Centre and Monash Medical Centre in Australia.
The Phase 2, double-blind, randomized, placebo-controlled, dose-escalating trial evaluated MPC-300-IV in patients with type 2 diabetes and moderate to severe renal impairment, stage 3b-4 chronic kidney disease (CKD), who were already on a stable regimen of the standard of care therapy for diabetic nephropathy (renin-angiotensin system inhibition with angiotensin converting enzyme inhibitors or angiotensin II receptor blockers). A total of 30 patients were randomized to receive a single infusion of 150 million MPCs, 300 million MPCs, or saline control on top of maximal therapy.
The objectives of the trial were to evaluate safety and to explore potential efficacy signals of MPC-300-IV treatment on renal function. The primary efficacy endpoint of decline or change in glomerular filtration rate (GFR) was in line with the 2012 joint workshop held by the United States Food and Drug Administration and the National Kidney Foundation, which recommended that time to 30%-40% decline in GFR is an acceptable primary endpoint for evaluating potential benefits of new therapies for this patient population.
Key trial results were:
- Safety profile for MPC-300-IV treatment was similar to placebo, with no treatment-related adverse events.
- Efficacy testing showed that patients receiving a single MPC infusion at either dose had improved renal function relative to placebo, as defined by preservation or improvement in GFR at 12 weeks.
- The rate of decline in estimated GFR at 12 weeks was significantly reduced in the group receiving a single dose of 150 million MPCs relative to the placebo group (p=0.05).
- There was a trend toward more pronounced treatment effects relative to placebo in the pre-specified subgroup of patients with GFR>30 ml/min/1.73m2 at baseline (p=0.07).
Dr David Packham, Associate Professor in the Department of Medicine at the University of Melbourne, Director of the Melbourne Renal Research Group, and lead author on the publication said: “The efficacy signal observed with respect to preservation or improvement in GFR is exciting, especially given that this trial was not powered to show statistical significance. Patients receiving a single infusion of MPC-300-IV showed no evidence of developing an immune response to the administered cells, suggesting that repeat administration is feasible and may in the longer term be able to halt or even reverse progressive chronic kidney disease. I hope that this very promising investigational therapy will be advanced to rigorous Phase 3 clinical trials to test this hypothesis as soon as possible.”
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