Faculty Bibliography

Background/Purpose: Zetomipzomib is a first-in-class selective inhibitor of the immunoproteasome that is active in multiple autoimmune disease models, including murine models of SLE and LN. The MISSION study (NCT03393013) is a Phase 1b/2, open-label study to evaluate safety, tolerability, and preliminary efficacy of zetomipzomib in patients with SLE with +/- LN. In the previously reported Phase 1b portion, zetomipzomib demonstrated a favorable safety and tolerability profile in patients with active SLE +/- LN and resulted in improvement across multiple exploratory disease activity measures as well as biomarkers. Phase 2 fully enrolled in Nov 2021, and interim results from this signal-seeking study are reported here.
Method(s): The MISSION Phase 2 study evaluated zetomipzomib 60 mg subcutaneously once weekly for 24 weeks (1st dose: 30 mg) in patients with active LN (Class III or IV +/- Class V) with urine protein to creatinine ratio (UPCR) >=1 despite stable background therapy with corticosteroids and at least one immunosuppressive. The primary endpoint was the number of patients with a 50% reduction in UPCR from baseline after 24 weeks of treatment. Safety, tolerability, UPCR, renal response parameters (e.g., complete renal response [CRR] and partial renal response [PRR])*, renal function, SLE disease activity and biomarkers were measured, and an interim analysis was performed. *CRR was defined as UPCR <=0.5, eGFR >=60 mL/min/1.73m2 or no worsening of eGFR from baseline of >=25%, prednisone (or equivalent) <=10 mg and no use of prohibited medication. PRR was defined as 50% reduction in UPCR and/or UPCR < 1 (if baseline UPCR < 3) and/or UPCR< 3 (if baseline UPCR >=3), eGFR >=60 mL/min/1.73m2 or no worsening of eGFR from baseline of >=25% and no use of prohibited medication. CRR and PRR were calculated using absolute UPCR values.
Result(s): As of October 1, 2021, 10 patients had reached study week (W) 13; 80% were female with mean age 39.4 years, median LN duration 7.6 years, mean 24-hour UPCR 2.2 and mean eGFR 78.5 mL/min/1.73m2 at baseline. All 10 patients were on prednisone (or equivalent), 8 patients were also taking mycophenolate mofetil or mycophenolic acid, and 5 patients were also taking hydroxychloroquine. Five patients had reached the end of treatment visit (W25). Following 24 weeks of zetomipzomib therapy, 3 of 5 patients achieved a >=50% reduction in UPCR; 4 of the 5 patients had renal responses (2 CRR and 2 PRR). Zetomipzomib administration improved UPCR and anti-dsDNA as early as W13 and was associated with a favorable safety and tolerability profile. The most common adverse event (AE) was injection site reaction. Most reported AEs were mild to moderate (<=Grade 2). Two Serious AEs were reported in 2 patients (1 related and 1 unrelated to treatment). There were no study discontinuations due to drug-related AEs. No opportunistic infections were reported.
Conclusion(s): An interim analysis of MISSION Phase 2 demonstrated that zetomipzomib added to stable background medications led to an overall renal response in 4 of the first 5 patients to complete treatment. Zetomipzomib maintained a favorable safety and tolerability profile over the six-month treatment period. The MISSION Phase 2 is fully enrolled, and an updated analysis of the completed study will be shared

Background/Purpose: Persistent proteinuria increases the risk of comorbidities in lupus nephritis, and rapid reductions in protein have shown to be predictive of improved long-term renal health. Patients with Class V lupus nephritis may take longer to respond to therapy, and treatments that efficiently reduce proteinuria in this population are needed. We report here on a post-hoc analysis of voclosporin in patients with Class V lupus nephritis using three years of pooled data from the Phase 3 AURORA 1 and AURORA 2 studies.
Method(s): AURORA 1 enrolled patients with biopsy-proven active lupus nephritis, urine protein creatinine ratio (UPCR) >=1.5 mg/mg (>=2.0 mg/mg for pure Class V), and estimated glomerular filtration rate (eGFR) >45 mL/min/1.73 m2. Patients completing AURORA 1 were eligible to enter AURORA 2 on the same blinded therapy (voclosporin or placebo) in combination with mycophenolate mofetil (MMF) and low-dose steroids for up to 3 years of treatment. Hazard ratios (HR) for the time to UPCR <=0.5 mg/mg and mean eGFR levels were assessed in patients with pure and mixed Class V lupus nephritis.
Result(s): A total of 80 patients with Class V lupus nephritis continued treatment in AURORA 2, 31 with pure Class V disease and 49 with mixed lesions. Mean baseline UPCR was 3.4 and 3.3 mg/mg in patients with pure Class V disease treated with voclosporin and control, respectively, and 3.4 and 3.9 mg/mg in voclosporin-and control-treated patients with mixed lesions. The differences between treatment arms in UPCR reductions were apparent within the first month and sustained at three years in both pure and mixed disease. For patients with pure Class V disease, the median times to UPCR <=0.5 mg/mg were 3.6 and 8.3 months in the voclosporin and control arms, respectively (HR 1.93; p=0.167, Figure 1). For patients with mixed lesions, the median times to this outcome were 3.7 and 18.0 months, respectively (HR 5.07; p< 0.0001). Mean corrected eGFR levels were similar in all treatment arms and stable throughout the study (Figure 2). Analysis of AURORA 2 patients with Class V disease includes pooled data from AURORA 1 and AURORA 2. Time to UPCR <=0.5 mg/mg was assessed with a Kaplan Meier analysis. UPCR, urine protein creatinine ratio. Analysis of AURORA 2 patients with Class V disease includes pooled data from AURORA 1 and AURORA 2. Renal function was assessed with corrected eGFR (Chronic Kidney Disease Epidemiology Collaboration equation) using a prespecified ceiling of 90 mL/min/1.73 m2. Analysis of LS mean corrected eGFR over time includes data from a follow up visit at four weeks after study drug discontinuation. CI, confidence interval; eGFR, estimated glomerular filtration rate; FUP, follow up; LS, least squares.
Conclusion(s): Voclosporin-treated patients with pure and mixed Class V lupus nephritis saw substantial reductions in UPCR that occurred faster than in those treated with MMF and low-dose steroids alone. Voclosporin may be beneficial in limiting the negative long-term impact of proteinuria in this population

Background/Purpose: SLE is characterized by autoantibody production. The most common lupus-specific serology is the anti-dsDNA antibody (anti-DNA). Traditionally, anti-DNA is measured by an enzyme immunoassay or equivalent such as multiplex flow immunoassay (EIA), which is considered sensitive. In contrast, the crithidia luciliae immunofluorescence test (CLIFT) is considered more specific. Serial measurement of anti-DNA is often used to monitor lupus disease activity. With NYU's extensive multi-race/ethnic lupus registry, we studied the relationship between these two methods, their association with lupus nephritis (LN), and their ability to predict subsequent flares.
Method(s): Using the NYU Lupus Registry of patients who meet ACR, SLICC, or EULAR criteria, we identified patients who had one or more simultaneous anti-DNA results by multiplex EIA and CLIFT. We report on their concordance (e.g., always, never, or fluctuating), association with LN, and ability to predict flare within 90 days using the SELENA-SLEDAI Flare Index. To account for degree of positivity, we defined tertiles for EIA and CLIFT as low positive [11-50 and 1:10-1:40], mild positive [51-200 and 1:80-1:320], and high positive [> 200 and > 1:640]. Table 1. 586 total visits with paired EIA and CLIFT. H = high positive M = mild positive L = low positive defined in Methods section Table 2. Relationship between EIA, CLIFT and hypocomplementemia with lupus nephritis. Chi-square test comparing significance between 60/100 v 72/100 (EIA/CLIFT) p = 0.07 Table 3. Relationship between EIA, CLIFT, hypocomplementemia and flare within 90 days Results: 207 patients had one or more paired anti-DNA results generating 586 paired results (Table 1). Cohort demographics: 92% Female, 22% Hispanic ethnicity, 24% Black, 16% Asian, 49% White, 10% Other. Overall, 377 pairs were always concordant, and 209 were never concordant. 236 pairs demonstrated titer concordance and 350 with titer discordance. Of the 207 patients, 64 patients had only one and 143 patients had two or more paired tests. Of the 64 patients, 46 were always concordant: 18 had positive EIA/CLIFT and 28 had negative EIA/CLIFT. The remaining 18 patients were never concordant: 8 had +EIA/-CLIFT and 10 had-EIA/+CLIFT. The concordance of the 143 patients with multiple paired results: 73 always, 23 never, and 47 fluctuating. Whether by one or multiple paired tests, 41/207 patients were never concordant. 100 of the 207 patients had LN associated with +EIA in 60 and +CLIFT in 72 (Table 2). Hypocomplementemia was present in 88% of +EIA and 89% of +CLIFT patients with LN. 51 visits in 42 patients had paired anti-DNA results and a SELENA-SLEDAI Flare Index assessment within 90 days. 7 patients had mild flares with +EIA in 4 and +CLIFT in 3. 4 patients had severe flares with +EIA and +CLIFT in 3 (Table 3). Low C3 and or C4 occurred in 1 of 7 (14%) mild flares and in 4 of 4 (100%) severe flares.
Conclusion(s): Our data demonstrate that discordance of positivity between two assays for anti-DNA occurred in 41/207 (20%) patients, in 207/586 (36%) visits and in 350/586 (60%) visits magnitude of positivity nonconcordant. EIA positivity is associated with LN less often than CLIFT positivity. Flares were infrequent and associated with either EIA or CLIFT positivity, with severe flares more likely if accompanied by hypocomplementemia. We recommend the utility of more than one anti-DNA assay in routine monitoring for lupus disease activity

Background/Purpose: Fractures in patients with systemic lupus erythematosus (SLE) are more common than age and sex matched controls. Fracture risk is traditionally assessed by dual-energy X-ray absorptiometry (DEXA) measured BMD and refined using the Fracture Risk Assessment Tool (FRAX). Several studies have demonstrated fractures in SLE patients despite normal DEXA BMD. We hypothesize that changes in bone microarchitecture may explain fracture vulnerability in SLE. This study was initiated to characterize bone quality by evaluating measures of microarchitecture at the proximal femur via 3T MRI in patients with SLE and compare these measurements with a control group of patients with known low bone density (LBD) and osteoporosis (OP).
Method(s): 50 SLE patients and 177 controls with known LBD or OP underwent DEXA and 3T MRI of the non-dominant hip. DEXA measured BMD of the total hip, femoral neck, and spine. LBD was defined as Z score <=-2.0 in premenopausal women and men younger than fifty, and T score <=-1.0 in others. OP was defined as the presence of LBD and history of fragility fracture in premenopausal women and men younger than fifty, and T score <=-2.5 in others. MRI measured favorable microarchitectural characteristics trabecular plate width (PW), trabecular plate-to-rod ratio (PRR), plate volume fraction (PVF), trabecular bone thickness (Tb.Th), and trabecular network area (NA), as well as unfavorable characteristics rod volume fraction (RVF) and trabecular spacing (Tb.Sp). Demographics, medication use and inflammatory markers at the time of the study visit were recorded. Statistical analysis was performed using Pearson correlations, t-scores, and multivariable linear regressions as appropriate.
Result(s): 50 SLE patients and 177 patients with LBD or OP completed all imaging studies. The SLE cohort was younger, and a higher percent of black patients compared to controls (Table 1). SLE patients had lower MRI PW and PRR and higher Tb. Sp as compared to controls, while having higher DEXA BMDs at all sites after adjustment for confounders (Figure 1). SLE patients had an inverse relationship between ESR and PW, PRR, Tb.Th, and NA (Figure 2, A-D). Similar results were found with CRP, which had an inverse relationship with PW, PRR, and NA. Body mass index (BMI) in SLE patients had an inverse relationship between PW, PVF, Tb.Th, and NA (Figure 2, E-H), and a positive relationship between all measured BMDs. In the control group, similar relationships were found between BMI and BMD, but only Tb.Th was inversely associated with BMI. Age, current steroid use, and history of lupus nephritis were not associated with MRI measures of bone microarchitecture.
Conclusion(s): Compared to controls, SLE patients had decreased bone quality as measured by MRI bone microarchitecture, despite having higher DEXA BMD. Elevated inflammatory markers inversely associated with bone quality. Elevated BMI, despite its association with higher BMD, was also associated with lower measures of bone microarchitectural strength, unlike controls. Further connection of bone microarchitecture to fracture risk and change over time in patients with SLE are needed to determine clinical significance of these findings and to guide additional monitoring and potential treatments. A-C: multivariate linear regression adjusting for significant microarchitectural confounders of BMI and gender. D-F: multivariate linear regression adjusting for significant BMD confounders of age, BMI, race, and gender

Background/Purpose: Musculoskeletal (MSK) symptoms are common in SLE, often associate with debilitating pain requiring immunosuppressive treatment. JBT-101 is a non-psychotropic, non-immunosuppressive, cannabinoid receptor 2 agonist that stimulates resolution of inflammation by increased production of specialized pro-resolving mediators and decreased production of inflammatory molecules. Our goal was to test efficacy and safety of JBT-101 for treatment of inflammatory MSK disease in SLE.
Method(s): Adults (18-70 years) meeting SLE ACR criteria with active MSK symptoms (SLEDAI arthritis or BILAG 2004 mild/moderate arthritis), on stable SLE medications and prednisone <=10 mg daily, with average maximum daily pain scores >= 4 on a 10-point numerical rating scale (NRS), were randomized to 12 weeks treatment with placebo (PBO), or 10mg (low), 20mg (med), or 40mg (high) daily of JBT-101. NRS scores were reported daily. Disease activity was assessed at Days 1, 29, 57, 84 and 113; these analyses are pending. The primary endpoint, improvement in NRS score from Days 1 to 84, was analyzed with a mixed effects regression model, that included the screening 7 day average pain NRS and Fibromyalgia Symptom Scale (FSS) scores as covariates to estimate longitudinal trends in NRS and change over time for each treatment group. NRS data up to last day of study treatment were included except days when narcotic analgesics were taken. A secondary endpoint, pain category, was defined using the average 7 day NRS prior to study visits: <= 1 no pain, (>1-<=3) mild, (>3-<=7) moderate, >7 severe.
Result(s): The 101 randomized and treated subjects (Table 1) had a mean screening 7 day average pain NRS=6.6 and mean FSS score of 15.7. FSS scores >=13 are consistent with a fibromyalgia diagnosis; 71.3% had FSS scores >=13. The covariateadjusted estimated change in NRS from Days 1 to 84 was not significantly different between groups:-0.3 PBO,-0.9 low,-1.5 med,-1.2 high (p=.419) (Fig 1). Pairwise-comparisons of active arms versus PBO were not significant (all p >.3, Bonferroni corrected). Among 84 subjects with NRS data at the end of the treatment period at Day 85, pain improved by at least 1 pain category from baseline for 3 (14%) PBO, 10 (45%) low dose, 8 (38%) med dose, and 9 (47%) high dose subjects (p=0.083 overall, Cochran-Mantel-Haenszel C2; p=0.012 pooled active vs PBO, Pearson's C2.). No grade 4 or 5 adverse events (AEs) were observed (Table 2). 75 subjects experienced at least 1 grade 2 or 3 AE: 20 (80%) PBO, 19 (79%) low, 21 (78%) mod, 15 (60%) high. 5 subjects experienced treatment-related AEs resulting in study drug discontinuation: 1 (4%) med, 4 (16%) high, all were Grade 2. 6 subjects experienced serious AEs: 2 (8%) PBO, 3 (11%) med, 1 (4%) high; all unrelated to study drug. 2 subjects in each active arm experienced severe disease flares (excluding MSK domain), compared to 3 in PBO.
Conclusion(s): JBT-101 was safe and well-tolerated. While the pre-specified mixed effects model did not identify significant differences between changes in NRS pain scores in active arms vs. PBO, the frequency of pain category improvement at Day 84 was notably higher in the active arms vs PBO. Further analyses, including those of SLEDAI, BILAG and PGA, may identify patients most likely to respond to JBT-101. NCT03093402

Background/Purpose: Patients with systemic lupus erythematosus (SLE) are at high risk for severe disease from COVID-19 and decreased vaccine efficacy, due to inherent immune perturbations and frequent immunosuppressant use. The impact of vaccine responses was "pressure" tested in New York City (NYC) from December 2021-February 2022, due to the highly infectious omicron BA.1 variant which resulted in a significant increase in COVID-19 cases and hospitalizations. This study was performed to assess clinical efficacy and seroreactivity in SLE patients with and without an additional vaccination dose after initial vaccine series, particularly during the omicron BA.1 surge in NYC.
Method(s): COVID-19 infections after vaccination were evaluated during patient encounters and chart review in subjects from the NYU Lupus Cohort who received an initial SARS-CoV-2 vaccine series with follow-up for at least 6 months or until breakthrough infection. Clinical follow-up was required after February 4, 2022 (when NYC COVID-19 cases returned to their preomicron BA.1 baseline), with last patient follow-up recorded April 24, 2022. Positive PCR or antigen-based testing was required, performed at the clinical site or self-reported. Fifty-seven patients receiving additional vaccine doses were evaluated longitudinally for recombinant SARS-CoV-2 spike receptor binding domain antibodies (#BT10500; R&D Systems). Low post-vaccine antibody response was defined as <=100 units/ml.
Result(s): Among the 163 subjects evaluated, 125 (76.7%) received an additional COVID-19 vaccination after the initial series. Demographics and medication usage were similar in patients who did and did not receive the additional vaccination dose, with 50% on at least one immunosuppressant and 16% on more than one at the time of the initial vaccine. Twentyeight (63.6%) of the 44 patients with a breakthrough infection had received an additional vaccination compared to 97 (81.5%) of the 119 without breakthrough infection (p=0.022) (Table 1). Of the 44 COVID-19 cases, only 2 occurred prior to the omicron wave, both in patients who did not receive the additional dose. There were no COVID-19 related deaths and two patients were hospitalized. Among the 57 patients with serologic evaluation, the median antibody level after initial vaccination series was 397 u/mL (IQR 57-753), and 1036 (IQR 517-1338.5) after the additional dose. After initial vaccination, 21 (37%) had low ELISA responses, but only 4 (7%) continued to have low responses after the additional dose. There was no association between the level of antibody after the additional dose and COVID-19 breakthrough.
Conclusion(s): SLE patients from a cohort of patients in NYC who received an additional SARS-CoV-2 vaccine dose were significantly less likely to have a subsequent COVID-19 infection compared to those who only completed their initial vaccine series. SLE patients demonstrated an improvement in serologic response after an additional dose of SARS-CoV-2 vaccine. The mild disease in all vaccinated patients is reassuring given the risks inherent and frequent immunosuppressant use in this patient population

BACKGROUND:Systemic lupus erythematosus (SLE) is a chronic, inflammatory disease with common musculoskeletal manifestations, notably reductions in bone quality. Bone marrow adipose tissue composition and quantity has been previously linked to bone quality and may play a role in SLE pathophysiology but has not been thoroughly studied. PURPOSE/OBJECTIVE:To use magnetic resonance spectroscopy (MRS) to investigate bone marrow adipose tissue quantity and composition in proximal femur subregions of untreated SLE patients compared to controls and treated patients. STUDY TYPE/METHODS:Prospective. SUBJECTS/METHODS:A total of 64 female subjects: 28 SLE, 15 glucocorticoid (GC)-treated SLE and 21 matched controls. FIELD STRENGTH/SEQUENCE/UNASSIGNED:Stimulated echo acquisition mode (STEAM) sequence at 3 T. ASSESSMENT/RESULTS:MRS was performed at multiple echo times in the femoral neck and trochanter regions and fatty acids (FA) composition was computed. STATISTICAL TESTS/UNASSIGNED:Intergroup comparisons were carried out using ANOVA. A P value < 0.05 was considered statistically significant. RESULTS:SLE patients had significantly higher saturated FA compared to controls in both the femoral neck (+0.12) and trochanter (+0.11), significantly lower monounsaturated FA in the trochanter compared to controls (-0.05), and significantly lower polyunsaturated FA in the femoral neck compared to both controls (-0.07) and SLE patients on GC therapy (-0.05). DATA CONCLUSION/UNASSIGNED:SLE patients have altered proximal femur marrow fat metabolism, which may reflect a manifestation of, or play a role in, the altered inflammatory response of these patients. EVIDENCE LEVEL/UNASSIGNED:2 TECHNICAL EFFICACY: Stage 2.