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Abstract Number: 0770

Evaluation of the Lupus Low Disease Activity State (LLDAS) vs. the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI)-2K Score in a Pediatric Systemic Lupus Erythematosus Cohort

Bridget Wilson, Tingting Qiu, Angela Merritt, Bin Huang and Hermine Brunner, Cincinnati Children's Hospital Medical Center, Cincinnati, OH

Meeting: ACR Convergence 2021

Keywords: LLDAS, Pediatric rheumatology, Systemic lupus erythematosus (SLE), Treatment Target

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Session Information

Date: Sunday, November 7, 2021

Session Title: Pediatric Rheumatology – Clinical Poster II: SLE, JDM, & Juvenile Scleroderma (0764–0785)

Session Type: Poster Session B

Session Time: 8:30AM-10:30AM

Background/Purpose: Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease which can affect any organ system, and ongoing disease activity leads to organ damage. The Lupus Low Disease Activity State (LLDAS) has been evaluated in adult patients, but not yet in pediatrics. In adults, achieving LLDAS was shown to decrease morbidity and mortality and was associated with improved quality of life. The Systemic Lupus Erythematosus Disease Activity Index (SLEDAI)-2K is a weighted scale measuring presence of SLE activity in nine organ systems. In children with SLE, disease activity measured by the SLEDAI-2K < 4 (low SLEDAI-status) is considered to reflect good disease control currently. The purpose of the study was to compare LLDAS and low SLEDAI-status in children with SLE.

Methods: LLDAS metrics were recorded for 1204 clinic visits from 117 patients (83% female; 41% black) enrolled in the SLE Database at Cincinnati Children’s Hospital Medical Center (see table 1). Visits with incomplete data to score the LLDAS were omitted. LLDAS criteria include: (1) low SLEDAI-status, without activity in major organ systems; (2) no new SLE disease activity compared with previous assessment; (3) physician global assessment (PGA) ≤1 (range 0-10); (4) current prednisolone (or equivalent) dose ≤ 7.5 mg/day; and (5) well tolerated standard maintenance doses of immunosuppressive drugs or approved biological agents, excluding investigational drugs.

Results: The majority (65%, 785/1204) of visits met low SLEDAI-status criteria, of which only 40% (312/785) met the LLDAS criteria (see table 2). Of those visits meeting low SLEDAI-status but not meeting LLDAS (N=473), 51% (N=241) presented new SLE activity from the previous visit; 50% (N=238) had current prednisolone (or equivalent) dose >7.5 mg daily, and 44% (N=209) had PGA >1 (see figure 1).

Conclusion: LLDAS is more stringent than low SLEDAI-status, which is the current treatment target. If confirmed that children with SLE accrue less disease damage with LLDAS versus low SLEDAI-status, this would change treatment targets, hence the standards of clinical care. The study also suggested the need to refine LLDAS for pediatric patients, particularly the criteria for prednisolone dosage.

Table 1: Patient Demographics

Table 2: Clinic Visits Achieving Low SLEDAI_2K Status and LLDAS

Figure 1: Heat Map of Clinic Visits Showing Low SLEDAI_2K Status and Particular LLDAS Criteria Met


Disclosures: B. Wilson, None; T. Qiu, None; A. Merritt, None; B. Huang, None; H. Brunner, Novartis, 6, Pfizer, 6, Roche, 6, GlaxoSmithKline, 6, Abbvie, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Biogen, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, AstraZeneca-Mediimmune, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Boehringer, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, BMS, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Celgene, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Eli Lilly, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, EMD Serono, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Idorsia, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Cerocor, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, F.Hoffman-La Roche, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Merck, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Novartis, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Sanofi, 12, Contributions to employer (Cincinatti Children's Hospital) *NOTE: This funding has been reinvested for the research activities of the hospital in a fully independent manner without any commitment to third parties, Aurina, 2.

To cite this abstract in AMA style:

Wilson B, Qiu T, Merritt A, Huang B, Brunner H. Evaluation of the Lupus Low Disease Activity State (LLDAS) vs. the Systemic Lupus Erythematosus Disease Activity Index (SLEDAI)-2K Score in a Pediatric Systemic Lupus Erythematosus Cohort [abstract]. Arthritis Rheumatol. 2021; 73 (suppl 9). https://acrabstracts.org/abstract/evaluation-of-the-lupus-low-disease-activity-state-lldas-vs-the-systemic-lupus-erythematosus-disease-activity-index-sledai-2k-score-in-a-pediatric-systemic-lupus-erythematosus-cohort/. Accessed January 28, 2023.
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