Japan’s Eisai and its diagnostic subsidiary, Sanko Junyaku, have launched the Lumipulse KL-6 and Lumipulse Presto KL-6 Eisai test kits, which detect KL-6, a marker of interstitial pneumonia. These diagnostic systems use automated chemiluminescence enzyme immunoassay system marketed by Fujirebio. In 2006, the three companies entered into an agreement to develop new KL-6 test kits.