Neuren reports successful NNZ-2566 safety trial results

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Neuren Pharmaceuticals Ltd has successfully completed a Phase 1 safety and tolerability trial of its second lead candidate, NNZ-2566, which is being developed to treat traumatic brain injury (TBI).

The results from the study were referred to the independent Data Safety Monitoring Committee for review who confirmed the safety profile of the drug.

The Phase 1 trial involved 28 healthy volunteers in four groups who received one of four escalating doses of NNZ-2566 (0.1,1.0,10.0,20.0 mg/kg) and was conducted at the Centre for Clinical Studies, Alfred Hospital in Melbourne.

The maximum dose was 20 mg/kg, delivered over a 10-minute period of infusion. This dose significantly exceeded that of Neuren’s lead compound, Glypromate®, for which the maximum Phase 1 dose was 3 mg/kg/hr in a 15-minute and 4-hour infusion. An extension of the NNZ-2566 Phase 1 trial is anticipated to run early in 2007 to evaluate pharmacokinetics with longer infusions of 12 or 24 hours, which takes into account the often greater severity of TBI.

Neuren’s NNZ-2566 has been developed in collaboration with the US Army’s Walter Reed Army Institute of Research. Planning is now well under way for a Phase 2 trial in patients with TBI, to take place in 2007. The target market for TBI is estimated at US$1.5 billion in the US alone.

Mr David Clarke, Chief Executive Officer of Neuren, said: “It is great to have confirmation that NNZ-2566 is safe. The dosing regime should provide us with greater flexibility for the Phase 2 trial, due to start this year. We are also exploring other opportunities for NNZ-2566 such as vascular dementia and stroke-related injuries.”


The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
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