Research Update

Phytopharm PLC 30 September 2005 Company Contact: U.K. Investor Relations Contact Phytopharm, plc Financial Dynamics Dr Richard Dixey David Yates/Ben Atwell +44 7867 782000 +44 207 831 3113 Dr Wang Chong +44 1480 437 697 www.phytopharm.com Completion of subject dosing and follow-up in phase II proof of principle study in Alzheimer's disease Preliminary trial results expected December 2005 GODMANCHESTER, Cambridgeshire, U.K. (30 September 2005) - Phytopharm plc (LSE: PYM; NASDAQBB: PHYOF; PHYOY) ('Phytopharm') announces today that all subjects have now completed their participation in the phase II proof of principle clinical study of PYM50028 (CoganeTM). The compound is an orally active, synthetic, neuroprotective and neurotrophic product that is under development as a treatment for Alzheimer's disease. Two hundred and fifty six subjects with Alzheimer's disease were randomly allocated to receive either CoganeTM or a placebo orally once daily for twelve weeks. The patients were monitored for a further six weeks following the completion of dosing, with measurements taken during the study to determine the safety, efficacy and pharmacokinetic profile of CoganeTM compared to placebo treatment. These data are now being collected for analysis. It is anticipated that the results of the study will be announced early in December 2005. In January 2005 an interim safety review was carried out by an independent consultant physician on the first 60 subjects to complete the study and concluded that the data available did not raise any safety concerns associated with CoganeTM. Dr Richard Dixey, Chief Executive of Phytopharm, said: 'A substantial body of work is being conducted on all aspects of the CoganeTM programme. The results of this clinical study are a key development and we look forward to receiving them in December. With more than 4.5 million people thought to be suffering from Alzheimer's disease in the US, and similar prevalence in other major markets, CoganeTM addresses a major opportunity where there is a clear need for improved medication.' NOTES TO EDITORS Alzheimer's disease Alzheimer's disease is a neurodegenerative disorder that mainly affects the elderly and is characterised by a progressive loss of learning ability and memory. Alzheimer's disease is thought to affect 4.5 million of the US population, and it is believed that this number will continue to grow to approximately 16 million by 2050 (Source: Alzheimer's Association). Several factors have been proposed to play a role in the underlying neurodegeneration, including the excessive formation of beta-amyloid, glutamate and a decrease in neurotrophic factors in the brain. In pre-clinical studies, the synthetic chemical PYM50028 has been shown to be neuroprotective against beta-amyloid and glutamate damage, to reverse the decrease of neuronal growth factors and to reverse neuronal degeneration observed in the ageing brain. Importantly, this product restores levels of proteins that are altered in the ageing brain, returning them to levels observed in the young and causing beneficial neurite outgrowth and branching. In addition, PYM50028 restores the learning and memory ability in Alzheimer's disease models and thereby offers the potential to reverse the symptoms of Alzheimer's disease. The global annual market for Alzheimer's disease is estimated to be worth in excess of $2.5 billion (source: Datamonitor); it is also estimated that in the US, the total annual cost burden for Alzheimer's disease exceeds $100 billion (source: US Alzheimer's Association). Phytopharm plc Phytopharm is focused on the research and development of novel pharmaceutical and functional food products based on clinical and pre-clinical data generated from medicinal plant extracts. The Company has seven development programmes in four disease areas: neurodegeneration, obesity and metabolic disease, dermatology and inflammation and has a portfolio of two marketed veterinary products. More information concerning Phytopharm's activities can be found on its web site at http://www.phytopharm.com This press release may contain forward-looking statements within the meaning of Section 27A of the U.S. Securities Act of 1933 and Section 21E of the U.S. Securities Exchange Act of 1934 with respect to the financial condition, results and business achievements/performance of Phytopharm and certain of the plans and objectives of its management. These statements are statements that are not historical facts. Words such as 'should', 'expects', 'anticipates', 'estimates ', 'believes' or similar expressions, as they relate to Phytopharm, are intended to identify forward-looking statements. By their nature, forward-looking statements involve risk and uncertainty because they reflect Phytopharm's current expectations and assumptions as to future events and circumstances that may not prove accurate. There is no guarantee that the expected events, trends or results will actually occur. Any changes in such assumptions or expectations could cause actual results to differ materially from current expectations. This information is provided by RNS The company news service from the London Stock Exchange

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