Objective:

Rheumatoid arthritis (RA), ankylosing spondylitis, psoriasis (Ps), psoriatic arthritis (PAs) are mediated by tumor necrosis factor (TNF). The objective is the multidisciplinary design of a personalized protocol of biological agents in rheumatic and dermatological diseases.

Methods:

Patients with RA, PAs, spondyloarthritis and Ps receiving etanercept or adalimumab for at least 6 months uninterruptedly were selected. Therapeutic monitoring considered biochemical criteria and clinical criteria. Optimal therapeutic ranges of adalimumab were: 5-8 μg/mL for RA and APs, 3.2-7 μg/mL for Ps and 4.6-12 μg/mL for spondyloarthritis. Optimal ranges of etanercept were: 2-3 μg/mL for RA and spondyloarthritis, and 2-7 μg/mL for Ps and APs.

Results:

Proposals were elaborated to optimize treatment in patients with adequate clinical response and levels of biological drug higher than the optimal therapeutic range. If the optimization proposal was accepted by the physician, the patient's perception of disease was evaluated at the first and third months. Patients with plasma drug levels below the optimal therapeutic range, absence of anti-drug antibodies and adequate clinical response were proposed for treatment optimization by discontinuation or spacing of administration. Patients with plasma drug levels below the optimal range and anti-drug antibodies were proposed in exchange for treatment or discontinuation -if disease control could be achieved-.

Conclusions:

This protocol allows the therapeutic personalization of etanercept and adalimumab for immune-mediated inflammatory diseases in areas of dermatology and rheumatology. Implementation of the protocol could improve the efficacy, safety, convenience and efficiency of etanercept and adalimumab.

        · resumen en Español     · texto en Español     · Español ( pdf )