Research Update

Phytopharm PLC 5 February 2001 5 February 2001 Phytopharm plc Commences Phase II Clinical Study of P54 for Inflammatory Bowel Disease Phytopharm plc (PYM: London Stock Exchange) ('Phytopharm') announces today the start of a Phase II clinical study to investigate the safety and efficacy of its patented oral product P54, for the treatment of inflammatory bowel disease. The study is being conducted at Addenbrooke's Hospital, Cambridge. It has a double-blind placebo-controlled parallel group design and will recruit up to 36 patients with steroid-dependent inflammatory bowel disease (ulcerative colitis and Crohn's disease). Patients with clinically stable disease that are dependent on chronic steroid therapy will be randomly assigned to receive either P54 or placebo for up to 16 weeks. During this period their dose of steroid will be reduced every 2 weeks until either it has been discontinued or they become symptomatic. The primary objective of the study is to assess whether or not treatment with P54 can reduce the dose of steroid required to maintain disease remission in patients with steroid dependent inflammatory bowel disease. Inflammatory bowel disease, which includes Crohn's disease and ulcerative colitis, is characterised by chronic inflammation of the gastrointestinal tract, which in the case of ulcerative colitis is limited to the large bowel. The causes of these chronic debilitating illnesses are currently unknown. The typical symptoms include malaise, cramping abdominal pain and diarrhoea. Affected patients usually require long term medical management, which can often include the need for major surgery. Systemic steroids are commonly used to treat inflammatory bowel disease, both in the short term to treat an acute relapse and in more severe cases for sustained periods to maintain disease remission. Steroids are powerful anti-inflammatory drugs that are associated with highly undesirable side effects, particularly if given at high doses for prolonged periods of time. Dr Richard Dixey, Chief Executive of Phytopharm, said: 'It is encouraging to see P54 progressing into the clinic for this particularly difficult to treat condition.' -ENDS- Enquiries: Phytopharm plc Dr Richard Dixey, Chief Executive Tel: 01480 437697 Financial Dynamics David Yates / Sophie Pender-Cudlip Tel: 0207 831 3113 NOTES TO EDITORS Phytopharm plc Phytopharm's business is to take both simple and complex mixtures derived from plant sources into full pharmaceutical development. The US Food and Drug Administration call such medicinal products 'Botanicals'. Botanical products are whole or partially purified extracts of medicinal plants in which the chemical composition is not fully characterised. Apart from being a new sector in the pharmaceutical market, Botanicals also act as an enabling technology to discover single chemical entities of clinical importance from plant sources. Phytopharm is the leading company in the development of botanical pharmaceuticals. It has developed a portfolio of 12 such products, nine of which are in the clinical evaluation phase. These products have been targeted in the five therapeutic categories of anti-inflammatory treatments, neurological disorders, dermatology, cancer and metabolic diseases. More information concerning Phytopharm's activities can be found on its Web site at http://www.phytopharm.co.uk.

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