PMID- 38214148 OWN - NLM STAT- MEDLINE DCOM- 20240220 LR - 20240220 IS - 0946-1965 (Print) IS - 0946-1965 (Linking) VI - 62 IP - 3 DP - 2024 Mar TI - Subcutaneous infliximab CT-P13 without intravenous induction in psoriatic arthritis: A case report and pharmacokinetic considerations. PG - 122-125 LID - 10.5414/CP204388 [doi] AB - INTRODUCTION: The biosimilar CT-P13, the first and only subcutaneous (SC) infliximab formulation, is recommended for patients with psoriatic arthritis (PsA) and can be administered as a maintenance treatment, to be started 4 weeks after the induction treatment with 2 intravenous (IV) infliximab infusions. OBJECTIVE: To evaluate treatment with SC infliximab without prior IV infusion induction to meet patient needs. MATERIALS AND METHODS: After approval by the ethics review board and based on the schedule approved for rheumatoid arthritis, SC induction was performed with infliximab CT-P13 120 mg weekly for 4 weeks, followed by an injection of 120 mg every 2 weeks. RESULTS: After 4 months of therapy, joint symptoms were resolved, inflammation parameters were normalized (erythrocyte sedimentation rate) reduced from 42 to 16 mm/h, and C-reactive protein from 1.74 to 0.43 mg/dL), and clinical assessment parameters were improved. After 9 months of therapy, the clinical data remained stable, with no adverse events or local side effects. CONCLUSION: SC infliximab was successfully used without previous IV infusion induction. Although, to date, the induction of PsA treatment via the SC route is not foreseen, the known pharmacokinetic properties and the outcome improvements observed in our patient show that subcutaneous treatment induction, as is already done in the treatment of rheumatoid arthritis, is also possible. FAU - Ditto, Maria Chiara AU - Ditto MC FAU - Parisi, Simone AU - Parisi S FAU - Cotugno, Valentina AU - Cotugno V FAU - Barila, Diego Antonio AU - Barila DA FAU - Lo Sardo, Luca AU - Lo Sardo L FAU - Cattel, Francesco AU - Cattel F FAU - Fusaro, Enrico AU - Fusaro E LA - eng PT - Case Reports PT - Journal Article PL - Germany TA - Int J Clin Pharmacol Ther JT - International journal of clinical pharmacology and therapeutics JID - 9423309 RN - B72HH48FLU (Infliximab) RN - 0 (CT-P13) RN - 0 (Biosimilar Pharmaceuticals) RN - 0 (Antibodies, Monoclonal) SB - IM MH - Humans MH - Infliximab/adverse effects MH - *Arthritis, Psoriatic/drug therapy MH - Treatment Outcome MH - *Arthritis, Rheumatoid/drug therapy MH - *Biosimilar Pharmaceuticals/adverse effects MH - *Antibodies, Monoclonal EDAT- 2024/01/12 06:42 MHDA- 2024/02/20 11:51 CRDT- 2024/01/12 05:27 PHST- 2024/02/07 00:00 [accepted] PHST- 2024/02/20 11:51 [medline] PHST- 2024/01/12 06:42 [pubmed] PHST- 2024/01/12 05:27 [entrez] AID - 190881 [pii] AID - 10.5414/CP204388 [doi] PST - ppublish SO - Int J Clin Pharmacol Ther. 2024 Mar;62(3):122-125. doi: 10.5414/CP204388.