SOURCE: Prana Biotechnology

Prana Biotechnology

August 22, 2012 09:00 ET

Prana Provides Clinical Trials Update

Alzheimer's and Huntington Disease Trials on Track

MELBOURNE, AUSTRALIA--(Marketwire - Aug 22, 2012) - Prana Biotechnology (NASDAQ: PRAN) (ASX: PBT) today reported on its progress in its Phase II clinical trials with its lead development asset PBT2. PBT2 has a unique therapeutic action that can benefit people suffering neurodegenerative disease because of its specialized ability to prevent the toxic relationship between disease proteins and biological metals in the brain.

Prana's world leading work in neurodegenerative diseases is capturing significant international recognition, particularly at a time when other potential treatments are failing. 

"There is mounting evidence that compounds that can restore metal homeostasis in the neuron can stop and even reverse cognitive decline associated with neurodegenerative diseases. We think Prana's PBT2 could be such a compound," said New York based MLV & Co. Equity Research, Senior Biotech Analyst George Zavoico, Ph.D. The full report is available at

Alzheimer's disease Trial Update -- the "IMAGINE" trial

In an earlier 12 week trial PBT2 both significantly changed amyloid levels in spinal fluid and improved the cognition of patients with Alzheimer's disease.1,2 The IMAGINE trial, with 12 months of treatment, aims to establish PBT2 as a safe and effective treatment for Alzheimer's disease. The following provides an update on the trial:

  • 100% of sites approved and open for recruitment;
  • 40% of patients in dosing;
  • Recruitment On Track to report 2H13;
  • 3 patients have reached 24 weeks of dosing -- doubling the previous longest exposure to PBT2;
  • No serious adverse events reported; and
  • First Data Safety Monitoring Board meeting in September 2012, reporting on safety and tolerability.

The randomized, double-blind, placebo controlled trial is enrolling 40 patients with prodromal or mild Alzheimer's disease in five sites in Melbourne, Australia. Brain Imaging is being used to measure PBT2's effect on amyloid deposits in the brain (using PiB-PET scanning) and effects on increasing brain activity (FDG PET). Cognition effects are being measured by the Neuropsychological Test Battery (NTB).

"The results of the IMAGINE trial will be closely watched by the Alzheimer's community, given the recent failure of several late-stage therapeutic candidates. We believe that PBT2's mechanism of action explains the clinical benefits that the drug has already shown, and we anticipate positive results from this trial," said Chief Executive Officer, Mr. Geoffrey Kempler.

The trial has received funding from the Alzheimer's Drug Discovery Foundation (ADDF).

Howard Fillit, MD, the ADDF's Executive Director commented, "PBT2 stands out as one of the few orally available agents with clinical trial evidence of cognitive benefit for Alzheimer's patients. Success in this trial will demonstrate target engagement by PBT2 in the brain of people with Alzheimer's disease, and accelerate the clinical development of PBT2 to patients."

The protocol for the IMAGINE trial is available by clicking here. 

Huntington Disease Trial Update -- the "Reach2HD" trial

The Reach2HD trial is a 6 month trial in 100 patients with early to mid-stage Huntington disease. An IND was opened to conduct the trial across sites in the USA and Australia. The following provides an update on the trial:

  • 70% of sites approved and open for recruitment;
  • 14% patients in dosing;
  • Recruitment On Track to report 2H13;
  • No serious adverse events reported; and
  • First Data Safety Monitoring Board meeting in October 2012, reporting on safety and tolerability.

Professor Ira Shoulson, Professor of Neurology, Pharmacology and Human Science at Georgetown University (Washington DC) and the Chair of the Executive Committee of the Huntington Study Group, said: "PBT2 attracted our attention as an experimental drug with the potential to bring real benefit to Huntington disease patients who suffer from a range of motor, behavioural and cognitive symptoms. The favourable signals from the PBT2 trial in Alzheimer's disease are particularly promising."

Only one drug is marketed for Huntington disease and that is only for the relief of the severe motor or chorea symptoms. There are no approved treatments for the significant cognitive and behavioural components of the disease, which typically manifest before motor problems.

"The trial objective is to demonstrate safety, motor and behavioural benefits and the same cognitive benefits for Huntington's patients that it has already demonstrated in Alzheimer's patients treated with PBT2," said Mr Kempler. 

The protocol and site updates for the Reach2HD trial can be accessed by clicking here.


1. Lannfelt et al. Lancet Neurology (2008) vol. 7, pp. 779-86;

2. Lannfelt et al. Erratum: Lancet Neurology (2009) vol. 8, pp. 981.

About Prana Biotechnology Limited
Prana Biotechnology was established to commercialize research into age-related neurodegenerative disorders. The Company was incorporated in 1997 and listed on the Australian Securities Exchange in March 2000 and listed on NASDAQ in September 2002. Researchers at prominent international institutions including The University of Melbourne, The Mental Health Research Institute (Melbourne) and Massachusetts General Hospital, a teaching hospital of Harvard Medical School, contributed to the discovery of Prana's technology.

For further information please visit the Company's web site at

About Huntington disease
Huntington disease is a complex and severely debilitating genetic, neurodegenerative disease, for which there is no cure. The disease often affects young adults and, whilst associated with severe physical movement symptoms, progressively impacts the mind and emotions as well. The disease causes incapacitation and death about 15-25 years after onset. The disease affects 30,000 people in the US and about 70,000 worldwide. There are no drugs in development that have established clinical evidence for treating cognitive decline.

About the Alzheimer's Drug Discovery Foundation
The Alzheimer's Drug Discovery Foundation (ADDF) is the only non-profit organization whose sole mission is to accelerate the discovery and development of drugs to prevent, treat and cure Alzheimer's disease, related dementias and cognitive aging. Since 1998, the ADDF has granted more than $50 million to fund over 325 Alzheimer's drug discovery programs in academic centers and biotechnology companies in 18 countries. For more information about the Foundation, please visit

Forward Looking Statements
This press release contains "forward-looking statements" within the meaning of section 27A of the Securities Act of 1933 and section 21E of the Securities Exchange Act of 1934. The Company has tried to identify such forward-looking statements by use of such words as "expects," "intends," "hopes," "anticipates," "believes," "could," "may," "evidences" and "estimates," and other similar expressions, but these words are not the exclusive means of identifying such statements. Such statements include, but are not limited to any statements relating to the Company's drug development program, including, but not limited to the initiation, progress and outcomes of clinical trials of the Company's drug development program, including, but not limited to, PBT2, and any other statements that are not historical facts. Such statements involve risks and uncertainties, including, but not limited to, those risks and uncertainties relating to the difficulties or delays in financing, development, testing, regulatory approval, production and marketing of the Company's drug components, including, but not limited to, PBT2, the ability of the Company to procure additional future sources of financing, unexpected adverse side effects or inadequate therapeutic efficacy of the Company's drug compounds, including, but not limited to, PBT2, that could slow or prevent products coming to market, the uncertainty of patent protection for the Company's intellectual property or trade secrets, including, but not limited to, the intellectual property relating to PBT2, and other risks detailed from time to time in the filings the Company makes with Securities and Exchange Commission including its annual reports on Form 20-F and its reports on Form 6-K. Such statements are based on management's current expectations, but actual results may differ materially due to various factions including those risks and uncertainties mentioned or referred to in this press release. Accordingly, you should not rely on those forward-looking statements as a prediction of actual future results.

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