What the authors recommended
For those reasons, if the first biologic is an anti-TNF agent, the authors recommend an immunomodulator combined with anti-TNF agents for induction or maintenance treatment of either ulcerative colitis or Crohn’s disease. If immunogenicity is present after a loss of response, they recommend a second anti-TNF agent with an immunomodulator. If there is no immunogenicity and the failure is mechanistic, they recommend switching to vedolizumab monotherapy or ustekinumab monotherapy. Immunomodulators can be prescribed on an individualized basis.
When vedolizumab or ustekinumab are the patient’s first biologic, they should be used as monotherapy. Both have very low rates of immunogenicity, and an immunomodulator is unlikely to confer a meaningful benefit, according to the review authors, who nonetheless called for prospective trials to explore these questions further. If there is a loss of response, they recommend anti-TNF agents combined with an immunomodulator, or monotherapy if the second agent is ustekinumab or vedolizumab.
In severe IBD cases, when combining agents with different mechanisms of action, or in patients who have immunogenicity to more than one class of biologic, the authors don’t provide general recommendations. Instead, they noted that the risks and benefits to individual patients should be weighed for combinations with immunomodulators.
The authors declare that they have nothing to disclose. Dr. Rubin has consulted for Janssen, AbbVie, and Takeda.