February 29, 2008 - Takeda Pharmaceutical Company Limited (“Takeda”) announced its submission of a New Drug Application of ramelteon for treatment of insomnia to the Ministry of Health, Labour and Welfare in Japan.
Ramelteon works by selectively targeting two melatonin receptors in the brain, MT1 and MT2. These receptors are located in suprachiasmatic nucleus, a body’s ‘master clock’, which regulates circadian (24-hour) rhythms, including the sleep-wake cycle. By acting on these receptors, body’s sleep-wake cycle is regulated and physiological sleep is promoted... Takeda's Press Release -