Tetanus-diphtheria toxoid, pneumococcal, meningococcal vaccines
A study of adults (aged 27-55) with relapsing MS investigated what happens when people receive several non-live vaccines while treating with dimethyl fumarate.
The study found that dimethyl fumarate did not weaken the body’s response to three non-live vaccines:
- Tetanus-diphtheria toxoid
- Pneumococcal
- Meningococcal
The safety and effectiveness of getting any other vaccine while taking dimethyl fumarate or VUMERITY have not been studied, and we do not know VUMERITY’s impact on vaccine effectiveness. As with any medical decision, it’s best to talk to your healthcare provider if you’re considering any type of vaccination.
COVID-19 vaccine
A separate small study was done with people with relapsing MS to understand how disease modifying therapies like VUMERITY and dimethyl fumarate (DMF) could affect the body's immune response to the COVID-19 vaccine. VUMERITY and DMF did not affect immune response to the COVID-19 vaccine. In fact, people’s immune responses were about the same whether they were taking VUMERITY, DMF, or no treatment at all.
This study did not measure COVID-19 vaccine effectiveness, only IgG antibody responses to the vaccine. IgG are just one of the antibodies that help fight infections.
Other vaccines have not been studied in people taking VUMERITY or DMF. We do not know VUMERITY’s impact on vaccine effectiveness. As with any medical decision, talk to your healthcare provider if you’re considering any type of vaccination.