Interim data from the Phase I dose escalation part of the mRNA cancer immunotherapy (mRNA-4359), show promise in patients with advanced solid cancers. The investigational mRNA cancer immunotherapy is targeted for patients with lung cancer, melanoma and other solid tumours. Nineteen patients with advanced stage cancers received between one and nine doses of the immunotherapy treatment. Scientists have found the immunotherapy created an immune response against cancer and was well tolerated, with adverse events including fatigue, injection site pain and fever.