In 2015, BBC News posted a case of a patient with Multiple Sclerosis (MS) whose symptoms remarkably improved during a 28-day-medication of Human Immunodeficiency Virus (HIV) anti-retroviral therapy; Multiple Sclerosis symptoms reoccurred after the end of the treatment. It is unknown what causes Multiple Sclerosis, but there are theories that include virus infection. Only a few case reports include AIDS patients with Multiple Sclerosis at the same time. If Multiple Sclerosis is linked to HIV, then HIV antiretroviral therapies could be the key to find the cure for Multiple Sclerosis. INSPIRE is a clinical trial using the HIV anti-retroviral drug Raltegravir, in order to treat Multiple Sclerosis patients who are not infected with HIV. Results of that trial combined with improved diagnostic techniques will assist in finding sooner the treatment of Multiple Sclerosis.