Does Cosentyx (secukinumab) make vaccines less effective?
Cosentyx targets IL-17A and suppresses part of the immune response involved in inflammation [1]. Because it changes immune signaling, it can reduce how strongly the body responds to some vaccines. The practical effect is that certain vaccine responses may be blunted compared with people not taking immunomodulators, depending on the vaccine type and the person.
Which vaccines are patients usually advised to get (and avoid) on Cosentyx?
The key distinction is usually between:
- Non-live (inactivated or mRNA/subunit) vaccines, which are generally the focus for immunization in people taking biologics like Cosentyx.
- Live vaccines, which are often avoided because blocking immune pathways can make live vaccines riskier in immunosuppressed patients.
Your clinician can confirm which specific vaccines are appropriate for you based on your health history and whether you’re on Cosentyx continuously or starting it.
Does timing matter—should vaccines be given before or after starting Cosentyx?
Timing can matter for immune response strength. Many clinicians aim to complete needed non-live vaccines before starting a biologic when possible, so the immune system can build a stronger response prior to immune pathway modulation. If you’re already on Cosentyx, your care team may still recommend vaccination but may space doses to optimize response when that’s feasible.
What side effects or safety issues should people watch for after vaccination?
With Cosentyx, the main safety consideration is vaccine type rather than a unique Cosentyx-specific reaction pattern. Report fever, severe allergic symptoms, or signs of infection promptly after any vaccine. If you’re unsure whether a vaccine is live (for example, some travel vaccines), ask your clinician or pharmacist before receiving it.
Can patients on Cosentyx still build protection from vaccines?
Yes. People taking Cosentyx can still gain protection from vaccination, especially from non-live vaccines, but protection levels and antibody responses may be lower than in people not on immunomodulators. That’s why it’s important to follow guideline-based vaccination schedules and ask whether you need additional doses or timing adjustments.
Where to get the most accurate answer for your exact vaccine?
The “does it affect effectiveness” question depends on which vaccine you mean (flu vs. COVID-19 vs. pneumococcal, etc.) and your dosing schedule. The most reliable source is your prescribing information and your treating specialist, who can tailor advice to the specific vaccine and your medical situation.
Sources:
[1] https://www.cosentyx.com/safety-and-prescribing-information/safety