| LA JOLLA, Calif.--(BUSINESS WIRE)--Nov. 3, 1997--Sequana Therapeutics, Inc. (NASDAQ:SQNA) Monday announced a broad-based
 genomics alliance with the Parke-Davis division of Warner-Lambert
 Company (NYSE:WLA) to develop novel therapeutic products for
 schizophrenia and bipolar disorder (manic depression), two of the
 most debilitating central nervous system (CNS) disorders.  The
 alliance will combine Sequana's capabilities in gene discovery,
 functional genomics, bioinformatics and high-throughput screening
 with Parke-Davis' research, development and clinical expertise in the
 CNS area.
 The agreement provides for payments to Sequana of up to $103
 million in the form of up-front licensing fees, research funding and
 milestone payments, almost half of which represents committed
 funding.  In addition, Sequana will receive royalties on sales of any
 small molecule therapeutic products resulting from the alliance.  The
 term of the alliance is five years, extendible in one-year increments
 to a period of eight years with commensurate increases in research
 funding.  Parke-Davis gains exclusive worldwide commercial rights for
 small molecule therapeutic products, while Sequana retains worldwide
 rights to develop and commercialize recombinant protein, antisense,
 gene therapy, vaccine, diagnostic, prognostic and pharmacogenetic
 products and services.
 The size and scope of this alliance reflects Sequana's expanded
 "gene to lead" approach and its ongoing strategy to play an
 increasingly important role in the drug discovery process.  Sequana's
 approach integrates the company's proven gene discovery technologies
 with its advanced functional genomics and high- throughput screening
 capabilities.  Sequana has built or refined several functional
 genomics and screening technologies over the past two years,
 including the company's RAMMP(TM) (RApid Mouse Model Production)
 technology for transgenic animal studies, DNA chip-based expression
 systems, computational biology tools, and the proprietary
 NemaScreen(R) technology for high-throughput screening using the
 well-characterized nematode worm.
 As part of the alliance, Sequana also will grant Parke-Davis a
 non-exclusive license to use certain of the company's bioinformatics
 software tools for the collection and analysis of genomic data,
 including LIMS-Lite(TM), SequaSearch(TM) and BioAgent DB(TM), among
 other proprietary tools.  Sequana believes that the application of
 these bioinformatics technologies at Parke-Davis' laboratory
 facilities will increase the speed and efficiency at which the
 companies can develop commercial products while aiding Parke-Davis in
 its expansion of its internal genomics capabilities.
 "This partnership with Parke-Davis gives us the opportunity to
 fuse our broad range of genomics technologies into one comprehensive
 program aimed at finding promising lead compounds to treat common
 psychiatric disorders," commented Kevin J. Kinsella, president and
 CEO of Sequana.  "We look forward with great enthusiasm to combining
 Sequana's gene-based discovery capabilities with Parke-Davis' strong
 research and development expertise in the CNS area."
 "Sequana brings to this collaboration what we think is the best
 mix of genomics technologies in the industry," added Leonard Post,
 Ph.D, Vice President of Discovery Research at Parke-Davis.  "This
 collaboration promises to be both an important step for Parke-Davis
 in the field of genomics, and a major component of our future
 discovery strategies in psychiatric diseases."
 Schizophrenia and bipolar disorder, two of the most chronic,
 debilitating and costly mental illnesses, afflict approximately five
 million Americans and cost the United States more than $50 billion
 annually, according to the National Institute of Mental Health.  The
 overt symptoms of schizophrenia include hallucinations, delusions,
 and bizarre thought patterns, while characteristics of bipolar
 disorder involve fluctuations between mania and depression.
 To date, Sequana has collected DNA samples from several hundred
 families affected by schizophrenia and bipolar disorder, has
 completed full genome scans, and has identified several small genetic
 regions which the company believes contain one or more genes
 associated with each disease.  With the signing of this agreement,
 Sequana will continue efforts to narrow these genetic regions in
 search of disease-causing genes and, together with Parke-Davis, will
 analyze candidate genes and drug targets using Sequana's large-scale
 gene expression technologies and developmental biology expertise.
 Upon the identification of molecular targets, Sequana plans to
 utilize its NemaScreen(R) technology to screen for potential small
 molecule compounds using Parke-Davis' compound library.
 Sequana Therapeutics, Inc. (NASDAQ: SQNA) is a leading genomics
 company that uses industrial-scale gene discovery and functional
 genomics technologies to develop products aimed at diagnosing and
 treating common human diseases.  Sequana has ongoing discovery
 programs in asthma, diabetes, obesity, osteoporosis, schizophrenia
 and manic depression, among other important disease areas, and has
 scientific collaborations with several major pharmaceutical and
 biotechnology companies worldwide.  Sequana employs approximately 200
 people at its headquarters in La Jolla, California and at its
 subsidiary, NemaPharm, Inc., in Cambridge, Massachusetts.
 Information about Sequana may be obtained on the World Wide Web at
 sequana.com or by phoning (619) 452-6550.
 Parke-Davis is devoted to discovering, developing, manufacturing
 and marketing quality pharmaceutical products.  Parke-Davis
 Pharmaceutical Research, headquartered in Ann Arbor, Michigan, is a
 division of Warner-Lambert Company (NYSE: WLA), whose three principal
 lines of business include pharmaceutical, consumer healthcare and
 confectionery products.  Warner-Lambert employs approximately 40,000
 people and is headquartered in Morris Plains, New Jersey.
 The statements in this news release relating to the potential
 discovery of disease genes, the subsequent development of products
 for schizophrenia and bipolar disorder, and the payments to be paid
 to Sequana by Parke-Davis are forward looking statements, which
 involve risks and uncertainties, including Sequana's ability to
 utilize its technologies to discover genes and to translate gene
 discoveries into potential drug leads, the successful continuation of
 the collaboration between Sequana and Parke-Davis, Sequana's ability
 to find more than one gene for each disease area, the ability of
 Sequana and Parke-Davis to identify multiple targets for therapeutic
 intervention, the ability of Parke-Davis to develop and commercialize
 small molecule therapeutic products based on Sequana's gene
 discoveries, and the impact of competitive gene discoveries,
 technologies and potential products.  For a discussion of the other
 risks and uncertainties potentially affecting Sequana's business, see
 the company's Form 10-K for the year ending December 31, 1996.
 Actual results and the timing of certain events could differ
 materially from those indicated in the forward looking statements as
 a result of these or other factors.
 
 CONTACT: Sequana Therapeutics, Inc.
 Scott Salka, VP Operations and CFO
 619/646-8225, scott@sequana.com
 or
 Bob Giargiari, Investor Relations
 619/646-8313, bob@sequana.com
 
 KEYWORD: CALIFORNIA MASSACHUSETTS
 INDUSTRY KEYWORD: MEDICINE PHARMACEUTICAL BIOTECHNOLOGY
 
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