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Comparison between full and tapered dosages of biologic therapies in psoriatic arthritis patients: clinical and ultrasound assessment

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Abstract

The primary objective of this study was to describe and compare clinical and musculoskeletal (MS) ultrasound (US) features between psoriatic arthritis (PsA) patients treated with full and tapered dosage of biologic (b) disease-modified antirheumatic drugs (DMARDs). The secondary objective was to compare clinical and MSUS features between PsA patients treated with bDMARDs with and without concomitant synthetic (s) DMARDs. We evaluated 102 patients with PsA treated with bDMARDs. The bDMARD dosage tapering had been made in patients with a maintained remission or minimal disease activity (MDA) according to their attending rheumatologist and with the patient acceptance. The bDMARD tapering consisted of the following: increase the interval between doses for subcutaneous bDMARDs or reduction of the dose for intravenous bDMARDs. The clinical evaluation consisted of a dermatologic and rheumatologic assessment of disease activity. The presence of B-mode and Doppler synovitis, tenosynovitis, enthesopathy, and paratenonitis was investigated by a rheumatologist blinded to drug dosage, clinical assessments, and laboratory results. Seventy-four (72.5 %) patients received full dosage of bDMARDs and 28 (27.5 %) received tapered dosage. The duration with biologic therapy and with current biologic therapy was significantly higher in patients with tapered dosages (p = 0.008 and p = 0.001, respectively). We found no significant differences between clinical, laboratory, and US variables, both for BM and CD between patients with full and tapered dosage and between patients with and without concomitant sDMARD. Clinical assessment, MSUS variables, and MDA status are similar in patients receiving full and tapered dosage of bDMARDs.

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Author contributions

Iustina Janta, Lina Martínez-Estupiñán, Esperanza Naredo, and Lara Valor did the study design. Iustina Janta, Lina Martínez-Estupiñán, Lara Valor, Esperanza Naredo, Ofelia Baniandres Rodriguez, Ignacio Hernández Aragüés, María Montoro, Natalia Bello, Diana Hernández-Flórez, Michelle Hinojosa, Julia Martínez-Barrio, Juan Carlos Nieto-González, Juan Gabriel Ovalles-Bonilla, Carlos Manuel González, Francisco Javier López-Longo, and Indalecio Monteagudo performed the acquisition of data. Iustina Janta, Lina Martínez-Estupiñán, Esperanza Naredo, Lara Valor, and Luis Carreño Analyzed and interpreted the data. Iustina Janta, Lina Martínez-Estupiñán, Esperanza Naredo, Lara Valor, and Luis Carreño prepared the manuscript.

Conflict of interest

Esperanza Naredo has received speaker fees from Abbvie, Roche Farma, Bristol-Myers Squibb, Pfizer, UCB, General Electric Healthcare, and Esaote. Esperanza Naredo has received research funding from UCB and MSD. Indalecio Monteagudo has received speaker fees from Abbvie, Roche Farma, Bristol-Myers Squibb, Pfizer, and UCB. Juan Carlos Nieto-González has received speaker fees from Abbvie, Roche Farma, Pfizer, and MSD. Francisco Javier López Longo has received speaker fees from Abbvie, Roche Farma, Bristol-Myers Squibb, Pfizer, UCB, MSD, and Actelion. Francisco Javier López Longo has received research funding from Abbvie and GSK. Lara Valor has received speaker fees from Abbvie, Roche Farma, Bristol-Myers Squibb, and Pfizer.

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Janta, I., Martínez-Estupiñán, L., Valor, L. et al. Comparison between full and tapered dosages of biologic therapies in psoriatic arthritis patients: clinical and ultrasound assessment. Clin Rheumatol 34, 935–942 (2015). https://doi.org/10.1007/s10067-015-2880-7

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