Moderna says RSV vaccine is 84% effective at preventing disease in older adults

Moderna on Tuesday said its vaccine targeting respiratory syncytial virus is effective at preventing disease in older adults.

The vaccine was 83.7% effective at preventing lower respiratory tract disease, defined as two or more symptoms, in people ages 60 and older, according to the Boston biotech company. It was 82.4% effective at preventing lower respiratory tract disease with three or more symptoms.

No safety concerns have been identified during the clinical trial of the vaccine, according to Moderna. The safety and efficacy data from the trial will be published in a peer-reviewed journal, according to the company. The clinical trial has enrolled about 37,000 people across 22 countries.

Moderna said it plans to file an application for approval by the Food and Drug Administration in the first half of this year. There currently is no FDA-approved vaccine for RSV.