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Positive phase III results show Xofluza reduces risk of developing flu after contact with an infected person by 86%

2019-09-02 22:40:14
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Roche (SIX: RO, ROG; OTCQX: RHHBY) today announced that the phase III BLOCKSTONE study showed preventive treatment with XofluzaTM (baloxavir marboxil) after exposure to an infected household member significantly reduced the risk of people developing flu by 86% versus placebo, wie die Roche schreibt.

The results show just 1.9% of Xofluza-treated household members had flu compared with 13.6% in the placebo-treated group (p<0.0001). This benefit with Xofluza remained statistically significant versus placebo regardless of influenza A subtype (H1N1: 1.1% vs 10.6%, p=0.0023; H3: 2.8% vs.

17.5%, p<0.0001). It was also observed in household contacts who are at high risk of flu-associated complications (2.2% vs 15.4%, p=0.0435), and children under 12 years of age (4.2% vs 15.5%, p=0.0339), who are more vulnerable to developing flu.

Xofluza had a comparable safety profile to placebo, with an overall incidence of adverse events being 22.2% for Xofluza and 20.5% for placebo. No serious adverse events were reported for Xofluza.

Full results of the study were presented as a late-breaking abstract during the OPTIONS X 2019 congress in Singapore on Sunday 1 September, 2019 (Abstract #11718).1BLOCKSTONE is a phase III, randomised, post-exposure prophylaxis study that evaluated a single dose of Xofluza compared with placebo as a preventive treatment for household members (adults and children) who are living with someone with an influenza infection confirmed by a rapid influenza diagnostic test (the ‘index patient’). The study was conducted by Shionogi & Co., Ltd.

during the 2018-2019 flu season in Japan.Participants enrolled in the study were household members of someone who had been diagnosed with influenza. The participants were randomised to receive a single dose of Xofluza (dose according to body weight) or placebo as a preventive measure against developing influenza.

The primary endpoint of the study was to evaluate the proportion of participants who tested positive for the influenza virus and had fever, and one or more respiratory symptoms between day one and ten. Secondary endpoints were clinical efficacy, pharmacokinetics and, safety and tolerability.Xofluza was discovered by Shionogi & Co., Ltd.

and is being further developed and commercialised globally in collaboration with the Roche Group (which includes Genentech in the US) and Shionogi & Co., Ltd. Under the terms of this agreement, Roche holds worldwide rights to Xofluza excluding Japan and Taiwan, where rights will be retained exclusively by Shionogi & Co., Ltd.Influenza, or flu, is one of the most common, yet serious, infectious diseases, representing a significant threat to public health.

Globally, seasonal epidemics result in 3 to 5 million cases of severe disease, millions of hospitalisations and up to 650,000 deaths every year.10-14 Central to the threat of flu is the ability of the virus to spread quickly and efficiently from person to person. Limiting the spread of infection is critical in the fight against flu.15Roche has a long heritage in developing medicines that contribute to public health.

We are committed to bringing innovation in the field of infectious diseases, including influenza. Tamiflu® (oseltamivir) has made a significant difference both to the treatment of seasonal influenza as well as in the management of recent pandemics, and we are proud to have brought this innovative medicine to patients.

Although vaccines are an important first line of defence in preventing flu, there is a need for new medical options for prophylaxis and treatment. Other antiviral drugs have limitations with respect to efficacy, convenience of dosing and resistance.

Roche is committed to addressing the unmet need in this area through its agreement with Shionogi & Co., Ltd. to develop and commercialise Xofluza.Infectious diseases caused by viral or bacterial pathogens are a major cause of death and morbidity worldwide, and constitute an ever-growing medical need.

As such, they form a core area of research and development at Roche, with clinical development programmes focused on hepatitis B, influenza and multi-drug resistant bacterial infections. We are committed to developing medicines that aim to be transformative, personalised, and accessible.Roche is the world’s largest biotech company, with truly differentiated medicines in oncology, immunology, infectious diseases, ophthalmology and diseases of the central nervous system.

Roche is also the world leader in in vitro diagnostics and tissue-based cancer diagnostics, and a frontrunner in diabetes management. Founded in 1896, Roche continues to search for better ways to prevent, diagnose and treat diseases and make a sustainable contribution to society.

The company also aims to improve patient access to medical innovations by working with all relevant stakeholders. More than thirty medicines developed by Roche are included in the World Health Organization Model Lists of Essential Medicines, among them life-saving antibiotics, antimalarials and cancer medicines.

Moreover, for the tenth consecutive year, Roche has been recognised as the most sustainable company in the Pharmaceuticals Industry by the Dow Jones Sustainability Indices (DJSI).The Roche Group, headquartered in Basel, Switzerland, is active in over 100 countries and in 2018 employed about 94,000 people worldwide. In 2018, Roche invested CHF 11 billion in R&D and posted sales of CHF 56.8 billion.

Genentech, in the United States, is a wholly owned member of the Roche Group. Roche is the majority shareholder in Chugai Pharmaceutical, Japan.

For more information, please visit www.roche.com..

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