Which medications in the drug class Immunomodulators are used in the treatment of Psoriasis?

Updated: Nov 20, 2020
  • Author: Jacquiline Habashy, DO, MSc; Chief Editor: William D James, MD  more...
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Answer

Immunomodulators

Immunomodulators regulate key factors responsible for inflammatory response.

Tacrolimus topical 0.1% (Protopic)

Topical tacrolimus has been used in the past for management of refractory atopic dermatitis. However, multiple studies have shown effectiveness with psoriasis affecting intertriginous regions as well as the face. Generally, it seems to be effective in thin-skinned areas. However, it has become somewhat of a second-line agent given other studies showing topical steroids may be more effective and potential serious disease association.

Cyclosporine (Sandimmune, Neoral, Gengraf)

Cyclosporine is an 11-amino acid cyclic peptide and natural product of fungi. It acts on T-cell replication and activity.

Cyclosporine is a specific modulator of T-cell function and an agent that depresses cell-mediated immune responses by inhibiting helper T-cell function. Preferential and reversible inhibition of T lymphocytes in the G0 or G1 phase of cell cycle is suggested. The drug binds to cyclophilin, an intracellular protein, which, in turn, prevents formation of interleukin (IL)-2 and the subsequent recruitment of activated T cells.

Cyclosporine has about 30% bioavailability, but there is marked interindividual variability. It specifically inhibits T-lymphocyte function with minimal activity against B cells. Maximum suppression of T-lymphocyte proliferation requires that the drug be present during first 24 h of antigenic exposure.

Cyclosporine suppresses some humoral immunity and, to a greater extent, cell-mediated immune reactions (eg, delayed hypersensitivity, allograft rejection, experimental allergic encephalomyelitis, and graft versus host disease) for a variety of organs.

Cyclosporine is used in extensive disease refractory to other treatments, especially when used at 5 mg/kg/d. Remission is usually rapid with this therapy; however, skin lesions tend to recur within days to weeks after treatment is stopped (although patients do not usually have the severe rebound that patients withdrawing from therapy may have). Maintenance therapy (3 mg/kg/d) usually is required with lower doses of this drug.


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