Does Cosentyx impact vaccine effectiveness?
Cosentyx (secukinumab), an IL-17 inhibitor for psoriasis, psoriatic arthritis, and ankylosing spondylitis, suppresses parts of the immune system. This can reduce immune responses to certain vaccines, especially live ones. Clinical data show diminished antibody production after influenza and pneumococcal vaccines in patients on Cosentyx.[1][2]
Which vaccines should you avoid on Cosentyx?
Avoid live vaccines like MMR, varicella (chickenpox), oral polio, and yellow fever while on Cosentyx or for several weeks after stopping. These carry infection risk due to weakened immunity. Inactivated vaccines (e.g., flu shot, shingles recombinant vaccine Shingrix, COVID-19 shots) are generally safe but may produce weaker responses.[1][3]
| Vaccine Type | Recommendation on Cosentyx |
|--------------|----------------------------|
| Live (e.g., MMR, varicella) | Avoid |
| Inactivated/non-live (e.g., flu, Tdap, HPV, COVID-19) | Use, but check response if high-risk |
| Live-attenuated nasal flu | Avoid; prefer injected version |
How does Cosentyx change vaccine timing?
Update vaccinations before starting Cosentyx if possible. For ongoing treatment, time non-live vaccines around doses—ideally 2-4 weeks before or after infusion/subcutaneous injection for optimal response. Post-vaccination antibody titers may need monitoring in immunocompromised patients.[1][2]
What do studies say about real-world vaccine responses?
Phase III trials (e.g., FUTURE studies) found Cosentyx users had 20-50% lower seroprotection rates for tetanus, pneumococcal, and meningococcal vaccines compared to placebo. Influenza vaccine response dropped by about 10-15%.[2][4] No increased infection rates from inactivated vaccines were noted.
Can you get COVID-19 or flu vaccines while on Cosentyx?
Yes, health agencies like CDC and EMA recommend inactivated COVID-19 vaccines (Pfizer, Moderna) and injected flu shots for Cosentyx patients. Responses are adequate for most, though some produce fewer antibodies—booster doses help. Avoid live nasal flu vaccine.[3][5]
What do doctors and patients report?
Rheumatologists often advise pre-treatment vaccination catch-up. Patient forums note successful COVID vaccinations without issues, but some report breakthrough infections possibly tied to muted immunity. Always consult your doctor for personalized plans, especially if travel or outbreaks loom.[1]
[1]: Cosentyx Prescribing Information (Novartis)
[2]: Bagel J et al. J Am Acad Dermatol 2019;80:482-90 (vaccine immunogenicity study)
[3]: CDC Guidelines on Immunosuppressants and Vaccines
[4]: McInnes IB et al. Ann Rheum Dis 2017;76:1568-75
[5]: EMA Cosentyx Summary of Product Characteristics