WHITEHOUSE STATION, N.J.--(BUSINESS WIRE)--Merck Sharp & Dohme Limited (MSD) announced today that ISENTRESS® (raltegravir) has been granted an expanded licence from the European Union Commission (Commission) for use in combination with other antiretroviral (ARV) medicinal products for the treatment of HIV-1 infection in adult patients, including adult patients starting HIV-1 therapy for the first time (treatment-naïve), as well as treatment-experienced adult patients. The safety and efficacy of ISENTRESS has not been established in patients below 16 years of age. The Commission's decision is applicable to the 27 Member States of the European Union (EU), including France, Germany, Italy, Spain and the United Kingdom as well as to Iceland and Norway.