September 11, 2000

Neurochem Inc. files "IND" Submission to FDA for lead candidate in treatment of Secondary Amyloidosis

Neurochem Inc. (TSX : NRM) today announced that it has submitted an Investigational New Drug (IND) application for its lead drug candidate Fibrillex™ to the U.S. Food and Drug Administration (FDA). The regulatory IND submission precedes the initiation of the pivotal Phase II/III clinical trials. Fibrillex™ is being developed as an orally active anti-amyloid agent for patients suffering from Secondary Amyloidosis.

" This IND submission is a very important step in the drug development process and brings Fibrillex™ one step closer to becoming a safe and efficacious treatment against Secondary Amyloidosis," said Dr. Louis R. Lamontagne, President and Chief Executive Officer of Neurochem. "Fibrillex™ has an orphan drug designation and represents the lead product at Neurochem, establishing in the scientific and medical community a « proof-of-concept » of our core anti-amyloid technology currently being applied by our scientists to widely known diseases including Alzheimer's disease, Diabetes, and Hemorrhagic Stroke due to Cerebral Amyloid Angiopathy," he added.

Secondary Amyloidosis is a systemic and fatal form of amyloidosis associated with chronic diseases such as rheumatoid arthritis, juvenile rheumatoid arthritis, ankylosing spondylitis, Crohn's disease and Familial Mediterranean Fever. It is estimated that more than 500,000 patients in industrialized countries are presently suffering from Secondary Amyloidosis, with no specific treatment available.

In April 1999, Neurochem was granted « Orphan Drug Designation » Status for Fibrillex™ by the FDA, conferring a seven-year U.S. market exclusivity to the Company for Fibrillex™. Fibrillex™ has successfully completed four Phase I safety clinical trials, including a trial in subjects with varying degrees of impairment of kidney function. "Fibrillex™ was very well tolerated in healthy and renal impaired subjects and exhibited a good pharmacokinetic profile in both subject groups", said Dr. Denis Garceau, Vice-President, Drug Development, at Neurochem.

Neurochem is an industry leader in the development of a novel, proprietary series of compounds that inhibit the formation, deposit and toxic effects of amyloid fibrils on cells within the body. Neurochem's research team has been working with international amyloid experts on the development of therapeutic cures to amyloid-related diseases, including Alzheimer's disease, Secondary Amyloidosis , Diabetes Type II and Hemorrhagic Stroke (due to Cerebral Amyloid Angiopathy). Neurochem has advanced three drug candidates to clinical trials: Alzhemed™, for the treatment of Alzheimer's disease, Fibrillex™, for Secondary Amyloidosis, and Cerebril™, for Hemorrhagic Stroke. At present, the Company employs over 50 people and is located in Saint-Laurent, Canada (www.neurochem.com).

For further Information, please contact:
Dr. Lise Hébert
Vice President, Corporate Communications
lhebert@neurochem.com

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Laval (Quebec)
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Tel: (450) 680-4500
Fax: (450) 680-4501

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