Taltz ® (ixekizumab)

Taltz® (ixekizumab): Switching from Ixekizumab to a Different Biologic Treatment

Switching from ixekizumab to a different biologic has not been studied by Eli Lilly and Company.

Clinical Trial Data

Switching from ixekizumab to a different biologic, including to a TNF inhibitor, has not been studied by Lilly in clinical trials.

Treatment Guidelines on Biologic Switching

Specific recommendations on switching from ixekizumab to another biologic are not available. 

  • The Joint American Academy of Dermatology and National Psoriasis Foundation 2019 guidelines on the treatment and management of psoriasis with biologics states no evidence-based studies have been conducted to determine the appropriate duration of time between discontinuation of the previous medication and initiation of a biologic. The guidelines suggest assessments should be done on a case-by-case basis considering many factors including

    • treatment being discontinued

    • disease severity

    • response to previous treatment, and

    • on expert opinion (some experts will begin administration of the new biologic as soon as it is available; whereas, others may wait 3 to 4 half-lives of the previous therapy before beginning the new biologic).1

  • The British Association of Dermatologists 2017 psoriasis guidelines for biologic therapies include to consider using a washout period of 1 month or the length of a treatment cycle (whichever is longer) when transitioning between biologic therapies.2

  • The Transitioning Therapies programme consensus published in 2014 recommends when switching from one biologic therapy to another to include the use of a washout period if the switch is made due to an AE and do not include a washout period if the switch is made due to a lack of efficacy. Initiation of the second biologic therapy occurs with the usual induction and maintenance dosages.3


1. Menter A, Strober BE, Kaplan DH, et al. Joint AAD-NPF guidelines of care for the management and treatment of psoriasis with biologics. J Am Acad Dermatol. 2019;80(4):1029-1072. http://dx.doi.org/10.1016/j.jaad.2018.11.057

2. Smith CH, Jabbar-Lopez ZK, Yiu ZZ, et al. British Association of Dermatologists guidelines for biologic therapy for psoriasis 2017. Br J Dermatol. 2017;177(3):628-636. http://dx.doi.org/10.1111/bjd.15665

3. Mrowietz U, de Jong EMGJ, Kragballe K, et al. A consensus report on appropriate treatment optimization and transitioning in the management of moderate-to-severe plaque psoriasis. J Eur Acad Dermatol Venereol. 2014;28(4):438-453. http://dx.doi.org/10.1111/jdv.12118


AE = adverse event

Lilly = Eli Lilly and Company

PK = pharmacokinetics

TNF = tumor necrosis factor

Date of Last Review: March 21, 2019

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