Genentech Announces Positive Results for First Global Phase III Study Investigating One-dose XOFLUZA (Baloxavir Marboxil) in Children With the Flu
– The MINISTONE-2 study showed XOFLUZA, given as a new oral suspension, is a well-tolerated and effective potential treatment for the flu in otherwise healthy children aged one to less than 12 years –
– Approximately one in three children develop the flu every year and they are often contagious longer than adults – treating children may therefore help reduce symptoms and prevent the spread of the flu to the wider community –
“Children need new medicines for the flu because they are at higher risk of developing the flu and more likely to have complications such as breathing problems and pneumonia. These flu complications, which in some cases can be fatal, lead to approximately one million children under five being admitted to the hospital globally every year,” said
The safety and efficacy of XOFLUZA in children with the flu under the age of one is also being studied in the global Phase III MINISTONE-1 study (NCT03653364). XOFLUZA is the first and only one-dose oral medicine approved to treat the flu and the first new flu medicine with a novel proposed mechanism of action approved by the
XOFLUZA is currently approved in several countries, including
About MINISTONE-2 (NCT03629184)
MINISTONE-2 is a Phase III, multicenter, randomized, double-blind study that evaluated the safety, pharmacokinetics and efficacy of one-dose of XOFLUZA compared with oseltamivir in otherwise healthy children aged one to less than 12 years with an influenza infection confirmed by a rapid influenza diagnostic test and displaying influenza-like symptoms (a temperature of 38°C or over, and one or more respiratory symptoms).
Participants enrolled in the study were recruited in parallel into two cohorts: patients aged five to less than 12 years and patients aged one to less than 5 years. Patients in both cohorts were randomly assigned to receive one-dose of XOFLUZA (2mg/kg for patients under 20kg or 40mg for patients 20kg or over) or oseltamivir twice a day over five days (dosing according to body weight). The primary endpoint of the study was the proportion of patients with adverse events or severe adverse events up to study day 29. Secondary endpoints include pharmacokinetics, time to alleviation of influenza signs and symptoms, and duration of symptoms, including fever.
About XOFLUZA™ (baloxavir marboxil)
XOFLUZA is a first-in-class, one-dose oral medicine with a novel proposed mechanism of action that has demonstrated efficacy in a wide range of influenza viruses, including in vitro activity against oseltamivir-resistant strains and avian strains (H7N9, H5N1) in non-clinical studies. Unlike other currently available antiviral treatments, XOFLUZA is the first in a new class of antivirals designed to inhibit the cap-dependent endonuclease protein, which is essential for viral replication.
XOFLUZA is being further studied in a Phase III development program, including children under the age of one (NCT03653364), and severely ill, hospitalized people with the flu (NCT03684044), as well as to assess the potential to reduce transmission in otherwise healthy people (NCT03969212).
XOFLUZA was discovered by
XOFLUZA U.S. Indication
XOFLUZA is a prescription medicine used to treat the flu (influenza) in people 12 years of age and older who have had flu symptoms for no more than 48 hours.
It is not known if XOFLUZA is safe and effective in children younger than 12 years of age or weighing less than 88 pounds (40 kg).
Limitations of Use: Influenza viruses change over time, and factors such as the virus type or subtype, emergence of resistance or changes in viral virulence could diminish the clinical benefit of antiviral drugs. Consider available information on drug susceptibility patterns for circulating influenza virus strains when deciding whether to use XOFLUZA.
Important Safety Information
Do not take XOFLUZA if you are allergic to baloxavir marboxil or any of the ingredients in XOFLUZA.
Before you take XOFLUZA, tell your healthcare provider about all of your medical conditions, including if you:
- are pregnant or plan to become pregnant. It is not known if XOFLUZA can harm your unborn baby.
- are breastfeeding or plan to breastfeed. It is not known if XOFLUZA passes into your breast milk.
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins and herbal supplements.
Talk to your healthcare provider before you receive a live flu vaccine after taking XOFLUZA.
Take XOFLUZA with or without food. Do not take XOFLUZA with dairy products, calcium-fortified beverages, laxatives, antacids or oral supplements containing iron, zinc, selenium, calcium or magnesium.
The most common side effects are diarrhea, bronchitis, nausea, common cold symptoms (nasopharyngitis) and headache.
XOFLUZA is not effective in treating infections other than influenza. Other kinds of infections can have symptoms like those of the flu or occur along with the flu and may need different kinds of treatment. Tell your healthcare provider if you feel worse or develop new symptoms during or after treatment with XOFLUZA or if your flu symptoms do not start to get better.
Please see the XOFLUZA full Prescribing Information for complete safety information.
You are encouraged to report side effects to Genentech by calling 1-888-835-2555 or to the
About Genentech in influenza
Influenza, or flu, is one of the most common, yet serious, infectious diseases, representing a significant threat to public health. Since 2010, the
Founded more than 40 years ago, Genentech is a leading biotechnology company that discovers, develops, manufactures and commercializes medicines to treat patients with serious and life-threatening medical conditions. The company, a member of the
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