PMID- 34792562 OWN - NLM STAT- MEDLINE DCOM- 20220708 LR - 20220711 IS - 1462-0332 (Electronic) IS - 1462-0324 (Linking) VI - 61 IP - 7 DP - 2022 Jul 6 TI - Torque Teno Virus quantification for monitoring of immunomodulation with biologic compounds in the treatment of rheumatoid arthritis. PG - 2815-2825 LID - 10.1093/rheumatology/keab839 [doi] AB - OBJECTIVES: RA patients who fail to respond to MTX can receive biologic dMARDs (bDMARDs). The Torque Teno Virus (TTV) is a potential novel candidate for monitoring of immunosuppression. We explore TTV in these patients and its association with clinical response to bDMARDs. METHODS: The BioBio Study is a multicentre randomized open-label trial, including RA patients with insufficient response to MTX. Patients were randomized to either TNFi (infliximab, INF), anti-IL-6 (tocilizumab, TCZ), CTLA4-Ig (abatacept, ABA) or anti-CD20 (rituximab, RTX) in addition to MTX. PCR was used to quantify TTV in the peripheral blood. RESULTS: TTV was measured in 95 patients (INF, n = 23; TCZ, n = 22; ABA, n = 27; RTX; n = 23). TTV increased by a median of 4.5 x 104 copies/ml [c/ml; interquartile range (IQR) 0-7.5 x 105] after 3 months. TTV levels at month 3 were associated with the Simplified Disease Activity Index (SDAI) (P = 0.03) and the Clinical Disease Activity Index (CDAI) response (P = 0.026) at month 6. A TTV cut-off level of 1.2 x 106 c/ml at month 3 had a positive likelihood ratio of 2.7 for prediction of an 85% reduction in SDAI at month 6. CONCLUSION: Our data suggest that TTV levels increase upon TNF, CD20 and costimulation blockade and are associated with the clinical response to bDMARDs in RA patients. TRIAL REGISTRATION: ClinicalTrials.gov; https://clinicaltrials.gov; NCT01638715. CI - (c) The Author(s) 2021. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For permissions, please email: journals.permissions@oup.com. FAU - Studenic, Paul AU - Studenic P AUID- ORCID: 0000-0002-8895-6941 AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. AD - Division of Rheumatology, Department of Medicine (Solna), Karolinska Institutet, Solna, Sweden. FAU - Bond, Gregor AU - Bond G AUID- ORCID: 0000-0003-0440-3053 AD - Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria. FAU - Kerschbaumer, Andreas AU - Kerschbaumer A AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. FAU - Becede, Manuel AU - Becede M AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. FAU - Pavelka, Karel AU - Pavelka K AD - Institute of Rheumatology. AD - Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic. FAU - Karateev, Dmitry AU - Karateev D AD - Department of Rheumatology, Moscow Regional Research and Clinical Institute (MONIKI), Moscow, Russia. FAU - Stieger, Jutta AU - Stieger J AD - 2nd Department of Medicine, Hietzing Hospital, Vienna. FAU - Puchner, Rudolf AU - Puchner R AD - Rheumatologist in Private Practice, Wels, Austria. FAU - Mueller, Ruediger B AU - Mueller RB AD - Cantonal Hospital Lucerne, Division of Rheumatology, Medical University Department, Rheumazentrum Ostschweiz, St. Gallen, Switzerland. FAU - Puchhammer-Stockl, Elisabeth AU - Puchhammer-Stockl E AD - Center of Virology. FAU - Durechova, Martina AU - Durechova M AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. FAU - Loiskandl, Michaela AU - Loiskandl M AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. FAU - Perkmann, Thomas AU - Perkmann T AD - Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria. FAU - Olejarova, Martina AU - Olejarova M AD - Institute of Rheumatology. AD - Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic. FAU - Luchikhina, Elena AU - Luchikhina E AD - Department of Rheumatology, Moscow Regional Research and Clinical Institute (MONIKI), Moscow, Russia. FAU - Steiner, Carl-Walter AU - Steiner CW AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. FAU - Bonelli, Michael AU - Bonelli M AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. FAU - Smolen, Josef S AU - Smolen JS AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. FAU - Aletaha, Daniel AU - Aletaha D AUID- ORCID: 0000-0003-2108-0030 AD - Department of Internal Medicine 3, Division of Rheumatology, Medical University of Vienna, Vienna, Austria. LA - eng SI - ClinicalTrials.gov/NCT01638715 PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - England TA - Rheumatology (Oxford) JT - Rheumatology (Oxford, England) JID - 100883501 RN - 0 (Antirheumatic Agents) RN - 0 (Biological Products) RN - 7D0YB67S97 (Abatacept) SB - IM MH - Abatacept/therapeutic use MH - *Antirheumatic Agents/therapeutic use MH - *Arthritis, Rheumatoid/drug therapy MH - *Biological Products/therapeutic use MH - Humans MH - Immunomodulation MH - *Torque teno virus MH - Treatment Outcome OTO - NOTNLM OT - Torque Teno Virus OT - bDMARDs OT - methotrexate OT - outcomes OT - rheumatoid arthritis OT - treatment response EDAT- 2021/11/19 06:00 MHDA- 2022/07/09 06:00 CRDT- 2021/11/18 12:22 PHST- 2021/05/02 00:00 [received] PHST- 2021/11/02 00:00 [revised] PHST- 2021/11/19 06:00 [pubmed] PHST- 2022/07/09 06:00 [medline] PHST- 2021/11/18 12:22 [entrez] AID - 6430998 [pii] AID - 10.1093/rheumatology/keab839 [doi] PST - ppublish SO - Rheumatology (Oxford). 2022 Jul 6;61(7):2815-2825. doi: 10.1093/rheumatology/keab839.