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Roche Moves Investigational Diabetes Drug, Taspoglutide, Into Phase III Clinical Trials
Date:6/10/2008

- Positive Phase II Results of Roche and Ipsen's First Once-Weekly Human

GLP-1 Presented at the American Diabetes Association Meeting -

NUTLEY, N.J., June 10 /PRNewswire/ -- Roche and Ipsen's investigational type 2 diabetes drug taspoglutide (R1583) has been shown to provide significant improvements in glucose control and weight loss after only eight weeks of treatment(1,2) with a safety and tolerability profile that supports entry into Phase III. Taspoglutide, originating from Ipsen's research, is the first human once weekly glucagon-like peptide-1 (GLP-1) analogue. It is a compound similar to the natural hormone GLP-1 which has a key role in blood sugar regulation. Based on these promising Phase II results presented at the American Diabetes Association (ADA) meeting in San Francisco, Roche has made the decision to move taspoglutide into Phase III clinical trials with the program anticipated to start in the second half of 2008.

"These data reinforce the role of GLP-1 in type 2 diabetes and Roche and Ipsen believe taspoglutide has the potential to be a best-in-class treatment," said William M. Burns, CEO, Pharmaceuticals Division of Roche and Jean-Luc Belingard, Chairman and CEO of the Ipsen Group. "GLP-1 analogues, which stimulate insulin secretion and suppress glucagon secretion, are true innovations in the diabetes field. Roche and Ipsen are pleased to move this potentially best-in-class product into phase III trials and look forward to working together to bring it to market," they said.

The Phase II studies showed that the safety profile of taspoglutide supports the move to Phase III with the most common adverse event reported being mild-to-moderate nausea. These events were dose-dependent, and in most cases, resolved spontaneously while continuing on therapy.

"These data show that taspoglutide is a promising once weekly treatment for patients with type 2 diabetes mellitus no longer controlled on oral antidiabetic medications," said lead author, Professor Michael Nauck, Head of the Diabeteszentrum Bad Lauterberg, Germany. "Like improved glucose control, drug-induced weight loss is particularly beneficial for this type of patient. We will wait to see the Phase III results with interest."

Roche exercised its licensing option for taspoglutide from Ipsen in 2006 and acquired exclusive worldwide rights to develop and market taspoglutide, except in Japan where these rights are shared with Teijin and in France where Ipsen may elect to retain co-marketing rights.

About the Studies

Eight Weeks of Treatment with the Long-Acting, Human GLP-1 Analogue Taspoglutide Improves Glycemic Control and Lowers Body Weight in Subjects with Type 2 Diabetes Mellitus (T2DM) Treated with Metformin: A Double-Blind Placebo-Controlled Phase 2 Study(1)
-- Study evaluated the efficacy, safety and tolerability of taspoglutide

in patients with Type 2 diabetes mellitus inadequately controlled with

metformin

-- 306 patients were randomized to 8 weeks of treatment with placebo (PLO)

or taspoglutide, either 5, 10, or 20 mg weekly (QW), or 10 and 20 mg

once every two weeks (Q2W) and followed-up for 4 additional weeks after

the last administered dose

-- Significant reductions in HbA1c were seen after 8 weeks of treatment

compared to PLO. The percentage of patients who achieved target HbA1c

less than or equal to 7% at end-of-study was 59%, 79%, 81% in the

5 mg, 10 mg, 20 mg weekly arms and 44% and 63% in the 10 and 20 mg

every two weeks respectively versus 17% with PLO

-- Body weight decreased progressively and dose-dependently, with

significant reductions from baseline in the 10 and 20 mg QW and 20 mg

Q2W arms

-- The most common adverse event (AE) was dose-dependent, transient,

mild-to-moderate nausea. No episodes of pancreatitis were reported in

this study

Safety and Tolerability of High Doses of the Long-Acting, Human GLP-1 Analogue Taspoglutide in Diabetic Subjects Treated with Metformin: A Double-Blind, Placebo-Controlled Phase 2 Study(2)
-- Study evaluated safety and tolerability of escalating doses of

taspoglutide in patients with Type 2 diabetes mellitus

inadequately controlled with metformin

-- 133 patients were randomized of which 129 patients received either

placebo (PLO) or 20 mg taspoglutide weekly for 4 weeks, followed by

either maintenance at 20 mg (20/20), or a dose increase to 30 mg

(20/30) or 40 mg (20/40) weekly with matched PLO for additional 4

weeks. Patients were then followed up for 4 weeks after the last

administered dose

-- Significant improvements in glycemic control were observed in all

active arms. At the end of treatment, the percentage of patients

reaching HbA1c less than or equal to 7% was 72%, 53% and 70% with

20/20, 20/30 and 20/40 respectively versus 19% with PLO

-- As expected, the most common AE was nausea: transient,

mild-to-moderate, appearing early during therapy and resolving

spontaneously while continuing on therapy in most cases. No episodes of

pancreatitis were reported in this study

About Taspoglutide (R1583)

Taspoglutide was selected from a family of human once-weekly long-acting glucagon-like peptide-1 (GLP-1) analogues with structural modifications which confer intrinsic controlled release properties. Ipsen is the originator of the concept of excipient free sustained release formulation applied to therapeutic peptides and proteins. Taspoglutide is being developed as a novel and innovative treatment for patients with type 2 diabetes mellitus, the fourth leading cause of death in most developed countries. The structure of the molecule is similar to that of the natural human hormone GLP-1, and has the potential for intervals of administration without the use of a matrix. Taspoglutide is currently moving into Phase III clinical trials.

About Diabetes

Diabetes is a disease characterized by excess blood glucose due to a deficiency in insulin availability and/or resistance to its action. Type 2 diabetes accounts for 90% to 95% of all diabetes cases worldwide and occurs almost entirely in adults. Complications from diabetes, such as coronary artery and peripheral vascular disease, stroke, diabetic neuropathy, amputations, renal failure and blindness, are resulting in increasing disability, reduced life expectancy and enormous health cost for virtually every society. According to current estimates by the World Health Organization, the number of people with diabetes is set to more than double in the next 20 years to over 300 million by the year 2025.

About Roche

Hoffmann-La Roche Inc. (Roche), in Nutley, N.J., is the U.S. pharmaceuticals headquarters of the Roche Group, a leading, global healthcare company. For more than 100 years, Roche has been developing innovative products and services that address prevention, diagnosis and treatment of disease. For more information, visit http://www.rocheusa.com. Product and treatment information for U.S. healthcare professionals is available at http://www.RocheExchange.com.

About Ipsen

Ipsen is an innovation-driven international specialty pharmaceutical group with over 20 products on the market and a total worldwide staff of nearly 4,000. Its development strategy is based on a combination of specialty products, which are growth drivers, in targeted therapeutic areas (oncology, endocrinology and neuromuscular disorders), and primary care products which contribute significantly to its research financing. The location of its four Research & Development centres (Paris, Boston, Barcelona, London) and its peptide and protein engineering platform give the Group a competitive edge in gaining access to leading university research teams and highly qualified personnel. More than 700 people in R&D are dedicated to the discovery and development of innovative drugs for patient care. This strategy is also supported by an active policy of partnerships. In 2007, Research and Development expenditure was about euro 185 million, in excess of 20% of consolidated sales, which amounted to euro 920.5 million while total revenues amounted to euro 993.8 million. Ipsen's shares are traded on Segment A of Eurolist by Euronext(TM) (stock code: IPN, ISIN code: FR0010259150). Ipsen's shares are eligible to the "Service de Reglement Differe" ("SRD") and the Group is part of the SBF 120 index. For more information on Ipsen, visit our website at http://www.ipsen.com.

All trademarks used or mentioned in this release are protected by law.

References

1. Eight Weeks of Treatment with the Long-Acting, Human GLP-1 Analogue

R1583 Improves Glycemic Control and Lowers Body Weight in Subjects with

Type 2 Diabetes Mellitus (T2DM) Treated with Metformin: A Double-Blind

Placebo-Controlled Phase 2 Study. Abstract number A-1604 Presented on

June 7th 2008 at the 68th Scientific Session of the American Diabetes

Association, San Francisco.

2. Safety and Tolerability of High Doses of the Long-Acting, Human GLP-1

Analogue R1583 in Diabetic Subjects Treated with Metformin: A Double-

Blind, Placebo-Controlled Phase 2 Study. Abstract number A-2434.

Presented on June 9th 2008 at the 68th Scientific Session of the

American Diabetes Association, San Francisco.

Ipsen Forward-looking statements

The forward-looking statements and targets contained herein are based on Ipsen's management's current views and assumptions. Such statements involve known and unknown risks and uncertainties that may cause actual results, performance or events to differ materially from those anticipated herein. Moreover, the Research and Development process involves several stages at each of which there is a substantial risk that the Group will fail to achieve its objectives and be forced to abandon its efforts in respect of a product in which it has invested significant sums. Therefore, the Group cannot be certain that favorable results obtained during pre-clinical trials will be confirmed subsequently during clinical trials, or that the results of clinical trials will be sufficient to demonstrate the safe and effective nature of the product concerned, or that the regulatory authorities will be satisfied with the data and information provided by the Company. Ipsen expressly disclaims any obligation or undertaking to update or revise any forward looking statements, targets or estimates contained in this press release to reflect any change in events, conditions, assumptions or circumstances on which any such statements are based, unless so required by applicable law. Ipsen's business is subject to the risk factors outlined in its information documents filed with the French Autorite des Marches Financiers.


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