PMID- 30138480 OWN - NLM STAT- MEDLINE DCOM- 20190207 LR - 20190215 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 13 IP - 8 DP - 2018 TI - Serum matrix metalloproteinase 3 levels are associated with an effect of iguratimod as add-on therapy to biological DMARDs in patients with rheumatoid arthritis. PG - e0202601 LID - 10.1371/journal.pone.0202601 [doi] LID - e0202601 AB - OBJECTIVE: The aim of this study was to clarify whether serum matrix metalloproteinase 3 (MMP-3) levels are associated with an effect of iguratimod as add-on therapy to biological DMARDs (bDMARDs) in patients with rheumatoid arthritis (RA). METHODS: Forty three patients with RA were treated with iguratimod as add-on therapy to bDMARDs. They were classified into remission and non-remission groups at 24 weeks of iguratimod therapy. Remission was defined as a state with a disease activity score (DAS) <2.6 in 28 joints (termed DAS remission) and total power Doppler ultrasound (US) score <3 (termed US remission). The serum MMP-3 levels at baseline and at 12 weeks were compared between these two groups. RESULTS: There were no significant differences in the serum MMP-3 levels at baseline between the DAS and US remission groups and the non-remission group. The serum MMP-3 levels at 12 weeks in the US remission group were significantly lower than those in the non-remission group. The ratios of the serum MMP-3 levels at baseline to those at 12 weeks in both the DAS and US remission groups were significantly lower than those in the non-remission group. An MMP-3 ratio <0.86 was determined as the cut-off value to predict US remission at 24 weeks. CONCLUSION: Our findings suggest that the ratios of the serum MMP-3 levels at baseline to those at 12 weeks could be used to predict remission in RA patients who are administered iguratimod as an add-on to bDMARDs. FAU - Tokai, Nao AU - Tokai N AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Yoshida, Shuzo AU - Yoshida S AD - Department of Internal Medicine, Arisawa General Hospital, Hirakata, Osaka, Japan. FAU - Kotani, Takuya AU - Kotani T AUID- ORCID: 0000-0003-2190-0780 AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Yoshikawa, Ayaka AU - Yoshikawa A AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Kimura, Yuko AU - Kimura Y AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Fujiki, Youhei AU - Fujiki Y AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Matsumura, Yoko AU - Matsumura Y AD - Central Laboratory, Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Takeuchi, Tohru AU - Takeuchi T AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Makino, Shigeki AU - Makino S AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. FAU - Arawaka, Shigeki AU - Arawaka S AD - Department of Internal Medicine (IV), Osaka Medical College, Takatsuki, Osaka, Japan. LA - eng PT - Journal Article DEP - 20180823 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Antirheumatic Agents) RN - 0 (Chromones) RN - 0 (Sulfonamides) RN - 4IHY34Y2NV (iguratimod) RN - EC 3.4.24.17 (MMP3 protein, human) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) SB - IM EIN - PLoS One. 2019 Jan 30;14(1):e0211750. PMID: 30699195 MH - Adult MH - Aged MH - Antirheumatic Agents/*administration & dosage/adverse effects MH - Arthritis, Rheumatoid/*drug therapy/genetics/physiopathology MH - Chromones/*administration & dosage/adverse effects MH - Female MH - Genetic Association Studies MH - Humans MH - Male MH - Matrix Metalloproteinase 3/*genetics MH - Middle Aged MH - Severity of Illness Index MH - Sulfonamides/*administration & dosage/adverse effects MH - Treatment Outcome PMC - PMC6107217 COIS- The authors have declared that no competing interests exist. EDAT- 2018/08/24 06:00 MHDA- 2019/02/08 06:00 PMCR- 2018/08/23 CRDT- 2018/08/24 06:00 PHST- 2018/06/19 00:00 [received] PHST- 2018/08/06 00:00 [accepted] PHST- 2018/08/24 06:00 [entrez] PHST- 2018/08/24 06:00 [pubmed] PHST- 2019/02/08 06:00 [medline] PHST- 2018/08/23 00:00 [pmc-release] AID - PONE-D-18-18264 [pii] AID - 10.1371/journal.pone.0202601 [doi] PST - epublish SO - PLoS One. 2018 Aug 23;13(8):e0202601. doi: 10.1371/journal.pone.0202601. eCollection 2018.