Sucampo Pharmaceuticals Obtains FDA Approval for AMITIZA® for the Treatment of Irritable Bowel Syndrome with Constipation in Adult Women



    Sucampo Pharmaceuticals, Inc., (NASDAQ: SCMP, Sucampo Pharmaceuticals)

    and Takeda Pharmaceutical Company Limited (TSE: 4502, Takeda) and its

    wholly owned subsidiary, Takeda Pharmaceuticals North America, Inc.

    today announced that the U.S. Food and Drug Administration (FDA) has

    approved Sucampo Pharmaceuticals´ supplemental

    New Drug Application (sNDA) for AMITIZA® (lubiprostone) 8 mcg capsules twice daily to treat irritable bowel

    syndrome with constipation (IBS-C) in women 18 years of age or older. As

    a result of this sNDA approval, Sucampo Pharmaceuticals will receive a

    development milestone payment of $50 million from Takeda in accordance

    with the Collaboration and License Agreement dated on October 29, 2004

    between Sucampo Pharmaceuticals and Takeda to jointly market AMITIZA in

    the United States and Canada.
    AMITIZA, developed by Sucampo Pharmaceuticals, is an established therapy

    for Chronic Idiopathic Constipation in adults. It received FDA approval

    in January 2006 and has been available for that indication in the United

    States since April 2006. The product is co-marketed in the United States

    by Sucampo Pharmaceuticals and Takeda through Takeda Pharmaceuticals

    North America, Inc.
    "Sucampo Pharmaceuticals is very pleased to

    have the FDA approval for the IBS-C indication for AMITIZA within the

    10-month PDUFA date," said Ryuji Ueno, M.D.

    Ph.D., Ph.D., founder, chairman and chief executive officer, Sucampo

    Pharmaceuticals. "Currently, AMITIZA is the

    only widely available prescription drug therapy to treat Chronic

    Idiopathic Constipation in adults. The approval of IBS-C as an

    additional indication for adult women validates our commitment to the

    continued development of AMITIZA for further indications and dedication

    to patients and physicians in bringing forth effective drugs to serve

    unmet medical needs. Sucampo Pharmaceuticals and Takeda will begin

    promotion for this indication at Digestive Disease Week 2008, the

    largest gathering of gastroenterologists, to raise awareness regarding

    IBS-C and the ability of AMITIZA to treat this condition."
    "AMITIZA´s approval

    for the IBS-C indication obtained by Sucampo Pharmaceuticals is

    important for Takeda since gastroenterology is one of the core

    therapeutic areas for our company," said

    Yasuchika Hasegawa, president of Takeda. "This

    additional indication for AMITIZA will help Takeda further enhance our

    position in the U.S. primary care and GI specialty markets."
    "Through this approval, we are pleased to be

    able to offer a medication that can provide overall symptom relief for

    the millions of adult women in the U.S. with IBS-C," said Art Rice, general manager, Gastroenterology, of Takeda

    Pharmaceuticals North America, Inc. "We are

    prepared to rapidly roll out our extensive efforts together with Sucampo

    Pharmaceuticals to educate both physicians and adult women with IBS-C to

    help them understand the condition and how it may be treated with

    AMITIZA."
    The sNDA was based on a clinical study program that included two Phase

    III, multi-center, double-blinded, randomized, placebo-controlled trials

    involving 1,154 adults, followed by one long-term, open-labeled

    extension trial involving 476 adults diagnosed with IBS-C. In the two

    Phase III studies, patients received AMITIZA 8 mcg or placebo taken

    twice daily over a 12-week period. In both trials, patients receiving

    AMITIZA 8 mcg twice daily were nearly twice as likely to achieve an

    overall response that was statistically significant compared to those

    receiving placebo. The safety profile of AMITIZA was established during

    the double-blinded period, and further confirmed by an open-labeled

    extension period with a total treatment period of up to 52 weeks.
    In the pivotal three-month trials, AMITIZA and placebo groups showed a

    similar incidence of serious adverse events (one percent in both the

    AMITIZA and placebo groups) and related adverse events (22 percent in

    AMITIZA vs. 21 percent in the placebo group). The most common

    treatment-related adverse events (>4

    percent of patients) were nausea (8 percent in the AMITIZA group vs. 4

    percent in the placebo group), diarrhea (7 percent vs. 4 percent

    respectively) and abdominal pain (5 percent vs. 5 percent, respectively).
    Sucampo Pharmaceuticals is currently conducting additional trials with

    AMITIZA, including a clinical study for treatment of constipation in

    pediatric patients; a clinical study of AMITIZA in patients with hepatic

    impairment, and a full clinical development for the treatment of

    opioid-induced bowel dysfunction, with two pivotal Phase III efficacy

    and safety studies and one long-term safety study ongoing.
    Important Safety Information about AMITIZA® (lubiprostone) for Chronic Idiopathic Constipation and Irritable Bowel

    Syndrome with Constipation
    AMITIZA® (lubiprostone) is indicated for the

    treatment of Chronic Idiopathic Constipation in adults and Irritable

    Bowel Syndrome with Constipation (IBS-C) in women ≥18 years old.
    AMITIZA is contraindicated in patients with known or suspected

    mechanical gastrointestinal obstruction. Patients with symptoms

    suggestive of mechanical gastrointestinal obstruction should be

    thoroughly evaluated by the treating physician to confirm the absence of

    such an obstruction prior to initiating AMITIZA treatment.
    The safety of AMITIZA in pregnancy has not been evaluated in humans. In

    guinea pigs, lubiprostone has been shown to have the potential to cause

    fetal loss. AMITIZA should be used during pregnancy only if the benefit

    justifies the potential risk to the fetus. Women who could become

    pregnant should have a negative pregnancy test prior to beginning

    therapy with AMITIZA and should be capable of complying with effective

    contraceptive measures.
    Patients taking AMITIZA may experience nausea. If this occurs

    concomitant administration of food with AMITIZA may reduce symptoms of

    nausea. Patients who experience severe nausea should inform their

    physician.
    AMITIZA should not be prescribed to patients that have severe diarrhea.

    Patients should be aware of the possible occurrence of diarrhea during

    treatment and inform their physician if the diarrhea becomes severe.
    Patients taking AMITIZA may experience dyspnea within an hour of first

    dose. This symptom generally resolves within 3 hours, but may recur with

    repeat dosing.
    In clinical trials of patients with Chronic Idiopathic Constipation, the

    most common adverse reactions (incidence > 4%) for Chronic Idiopathic Constipation were nausea (29%), diarrhea

    (12%), headache (11%), abdominal pain (8%), abdominal distention (6%)

    and flatulence (6%).
    In clinical trials of patients with IBS-C, the most common adverse

    reactions (incidence > 4%) were nausea

    (8%), diarrhea (7%) and abdominal pain (5%).
    For full prescribing information, visit www.amitiza.com.
    AMITIZA® is a

    registered trademark of Sucampo Pharmaceuticals, Inc.
    About Irritable Bowel Syndrome with Constipation
    Irritable Bowel Syndrome with Constipation (IBS-C) is a disorder

    characterized by symptoms including abdominal pain or discomfort

    bloating, and changes of bowel habits such as constipation and/or

    diarrhea. There are three main types of IBS: IBS with constipation

    (IBS-C), IBS with diarrhea (IBS-D), and IBS mixed with both constipation

    and diarrhea (IBS-M). Approximately 58 million Americans have IBS, with

    IBS-C accounting for approximately one-third of these cases. In IBS-C

    symptoms are present for at least three months with symptom onset at

    least six months prior to diagnosis. Although people with IBS-C report

    many of the symptoms associated with constipation, the presence of

    abdominal pain or discomfort is what mainly differentiates IBS-C from

    chronic constipation. Additionally, the hypersensitivity of the

    gastrointestinal system of individuals with IBS-C makes them prone to

    experience the effects of even mild symptoms of constipation. IBS is

    more prevalent in women than men.
    Sucampo Pharmaceuticals, Inc.
    Sucampo Pharmaceuticals, Inc., a specialty biopharmaceutical company

    based in Bethesda, MD, focuses on the development and commercialization

    of medicines based on prostones. The therapeutic potential of prostones

    which are bio-lipids that occur naturally in the human body, was first

    identified by Ryuji Ueno, M.D., Ph.D., Ph.D., Sucampo Pharmaceuticals´ chairman and chief executive officer. Dr. Ueno founded Sucampo

    Pharmaceuticals in 1996 with Sachiko Kuno, Ph.D., founding chief

    executive officer and advisor, international business development.
    Sucampo Pharmaceuticals is marketing AMITIZA (lubiprostone) in the U.S.

    for chronic idiopathic constipation in adults and is developing the drug

    for additional gastrointestinal disorders with large potential markets.

    In addition, Sucampo Pharmaceuticals has a robust pipeline of compounds

    with the potential to target underserved diseases affecting millions of

    patients worldwide. Sucampo Pharmaceuticals has two wholly owned

    subsidiaries: Sucampo Pharma Europe, Ltd. headquartered in Oxford, UK

    with a branch office in Basel, Switzerland, and Sucampo Pharma, Ltd.

    located in Tokyo and Osaka, Japan. To learn more about Sucampo

    Pharmaceuticals and its products, visit www.sucampo.com.
    Takeda Pharmaceutical Company Limited
    Located in Osaka, Japan, Takeda is a research-based global company with

    its main focus on pharmaceuticals. As the largest pharmaceutical company

    in Japan and one of the global leaders of the industry, Takeda is

    committed to striving toward better health for individuals and progress

    in medicine by developing superior pharmaceutical products. Additional

    information about Takeda is available through its corporate website, http://www.takeda.com.
    Takeda Pharmaceuticals North America, Inc.
    Based in Deerfield, Ill., Takeda Pharmaceuticals North America, Inc. is

    a wholly owned subsidiary of Takeda Pharmaceutical Company Limited. In

    the United States, TPNA currently markets products for diabetes

    insomnia, wakefulness and gastroenterology. The company has a robust

    pipeline with compounds in development for diabetes, cardiovascular

    disease and other conditions. To learn more about the company and its

    products, visit www.tpna.com.
    Forward-Looking Statements
    Any statements in this press release about future expectations, plans

    and prospects for Sucampo Pharmaceuticals, Inc. are forward-looking

    statements made under the provisions of The Private Securities

    Litigation Reform Act of 1995. Forward-looking statements may be

    identified by the words "project," "believe," "anticipate," "plan,"

    "expect," "estimate," "intend," "should," "would," "could," "will,"

    "may" or other similar expressions. Actual results may

    differ materially from those indicated by such forward-looking

    statements as a result of various important factors, including risks

    relating to: the results of clinical trials with respect to Sucampo

    Pharmaceuticals´ products under development; the timing and success of

    submission, acceptance and approval of regulatory filings; Sucampo

    Pharmaceuticals´ dependence on the commercial success of AMITIZA;

    Sucampo Pharmaceuticals´ ability to obtain additional funding required

    to conduct its discovery, development and commercialization programs;

    Sucampo Pharmaceuticals´ dependence on its co-marketing alliance with

    Takeda Pharmaceutical Company Limited; and Sucampo Pharmaceuticals´

    ability to obtain, maintain and enforce patent and other intellectual

    property protection for its discoveries. These and other risks

    are described in greater detail in the "Risk Factors" section of Sucampo

    Pharmaceuticals´ Annual Report on Form 10-K filed with the Securities

    and Exchange Commission for the year ended December 31, 2007. Any

    forward-looking statements in this press release represent Sucampo

    Pharmaceuticals´ views only as of the date of this release and should

    not be relied upon as representing its views as of any subsequent date. Sucampo Pharmaceuticals anticipates that subsequent events and

    developments will cause its views to change. However, while Sucampo

    Pharmaceuticals may elect to update these forward-looking statements

    publicly at some point in the future, it specifically disclaims any

    obligation to do so, whether as a result of new information, future

    events or otherwise.