Lantheus Holdings Inc., of North Billerica, Mass., has entered a strategic collaboration with Paris-based Carthera SAS for the use of its microbubbles in combination with Carthera’s investigational Sonocloud system. The implantable device is in development for the treatment of recurrent glioblastoma, a fast-growing brain tumor with a post-diagnosis median survival of just 15 months. The new deal furthers two of Lantheus’ strategic goals, finding new applications for its microbubbles and expanding its footprint in oncology.