What’s New in Lupus? Jeffrey Carlin, MD Section Head, Division of Rheumatology Virginia Mason Medical Center Clinical Associate Professor University of Washington Key Points • Diagnosing Lupus – ANA testing • Treatment Options • New Therapeutic Agents • Adjuvant Therapy Lupus Demographics Incidence and Prevalence of SLE: USA (per 100,000 per year) (per 100,000) All 5.1 52.2 White 1.4 7.4 Black 4.5 19.5 Puerto 2.2 Rican 18.0 Rochester, MN Uramoto KM et al Arth Rheum 1999;46-50 Incidence Prevalence Danchenko N et al Lupus 2006:308-318 SLE - Etiology • The etiology of SLE remains unknown • Yet, SLE is clearly multifactorial: EBV? – Genetic factors – Immunologic factors – Hormonal factors – Environmental factors Genetic predisposition Baseline immunological abnormalities Infection Hormonal factors Abnormal (control of) immune responses SLE Interferon-α Stimulation Ronneblom L, Alm GV Arth Res Ther 2003;68-75 Evironmental Triggers of SLE • • • • UV Light Drugs (>100 Identified) Smoking Infections – Pet Dogs – Lab workers – EBV • Silica • Mercury When Does Lupus Begin? Arbuckle M, et al NEJM 2003 Stages in Development of Pathogenic Autoimmunity ANA Techniques Frequencies of Positive ANA’s in Normal individuals Pooled ANA Data Hep-2 Cell Lines 80 70 68.3 Percentage 60 50 40 31.7 30 20 13.3 10 5 3.3 0 Negative 1:40 1:80 1:160 Fluorescence/Dilution Level 1:320 Tan E.M., et al Arthritis and Rheum 1997 Estimated Prevalence of ANA + in the US Population Satoh M et al Arth & Rheum 2012;64:2319-2127 Positive ANA High Probability of CTD Identify Specific ANA Antigen Consider Ancillary Lab Tests Search for Other Evidence of Disease Or Organ Involvement Low Probability of CTD Low Titer ANA High Titer ANA Identify Specific Antigen Reassure Pt Follow Pt Search for Other Evidence of Disease Or Organ Involvement Remember! A positive ANA does not mean the patient has a connective tissue disease, but a negative ANA will R/O CTD Lab investigations • Screen- CBC, urinanalysis & serum creatinine • Anti ds DNA • • • • In about 60% with SLE Levels often reflect disease activity with Rx ( ANA remains +) If normal – safe to Rx in chronic phase • ENA’s • complement • In ¾ untreated esp. with nephritis • APLA In 1/3 to ½ Associated with renal arterial, venous & glomerular thrombosis Anti-Ds DNA Antibody Anti- Histone Antibody Antibodies directed against exposed parts of the Nucleosome Anti-ds DNA Antibodies • Large literature suggesting these are strong biomarkers • Used widely in clinical practice – High Titer IgG anti-dsDNA predict nephritis • But not in immediate future! – High Affinity anti-dsDNA associated with flare – Glomerular IC enriched for anti-dsDNA Extractable Nuclear Antigens (ENA’S) • Autoantibodies against nuclear ribonucleoproteins/nuclear components – SSA, SSB, Sm, RNP, anti-Histone • ELISA assays • Useful for helping to confirm diagnosis – used as adjunct to ANA • Not useful for disease monitoring – need not be repeated once identified Anti-U1 SnRNP Antibodies Anti-Sm Ab Anti-RNP Ab Prevalence of Autoantibodies in SLE Antigen SLE Native DNA Denatured DNA Histones SM Antigen Nuclear RNP Ribosomal RNP SSA/Ro SSB/La 40% 70% 70% 30% 30% 10% 35% 15% DrugInduced No 75-80% >95% No No No No Significance of Autoantibodies in SLE Antigen Native DNA Denatured DNA Histones SM Antigen Nuclear RNP Ribosomal RNP SSA/Ro SSB/La SLE 40% 70% 70% 30% 30% 10% 35% 15% Clinical Associations Nephritis (and flare) Non-Specific Drug-Induced Lupus Severe SLE Arthritis SCLE, Sjogren’s NLS SCLE, Sjogren’s NLS Antibody Clustering in SLE Hopkins Lupus Cohort Study -1,357 patients Average follow-up 9.6 years • Cluster 1 - anti-Sm/RNP Ab’s – Primarily skin involvement – Less proteinuria, anemia, thrombocytopenia • Cluster 2 - anti-dsDNA/SSA/SSB Ab’s – Highest incidence of renal disease – Secondary Sjogren’s • Cluster 3 -anti-dsDNA/LAC/ACL Ab’s – Arterial/Venous thrombosus, livedo reticularis – Highest incidence of CVA’s To CH, Petri M Arthritis and Rheum 2005 ACR SLE Classification Criteria (SOAP BRAIN MD) 1. Serositis: (a) pleuritis, or (b) pericarditis 2. Oral ulcers 3. Arthritis 4. Photosensitivity 10. Malar rash 11. Discoid rash ". ..A person shall be said to have SLE if four or more of the 11 criteria are present, serially or simultaneously, during any interval of observation." 5. Blood/Hematologic disorder: (a) hemolytic anemia or (b) leukopenia of < 4.0 x 109 (c) lymphopenia of < 1.5 x 109 (d) thrombocytopenia < 100 X 109 6. Renal disorder: (a) proteinuria > 0.5 gm/24 h or 3+ dipstick or (b) cellular casts 7. Antinuclear antibody (positive ANA) 8. Immunologic disorders: (a) raised anti-native DNA antibody binding or (b) anti-Sm antibody or (c) positive anti-phospholipid antibody work-up 9. Neurological disorder: (a) seizures or (b) psychosis SLICC Criteria for Lupus • • • • • • Acute Cutaneous – Malar rash, subacute cutaneous lupus rash, bullous lupus Chronic Cutaneous – Discoid Lupus, Lupus panniculitis Oral/Nasal Ulcers Non-scarring Alopecia Synovitis Serositis • • • • Petri M et al, Arth & Rheum 2012; 64: 2677–2686 Renal – Urine protein/creat ratio > 500mg/24 hrs or active renal sediment Neuro – Sz, pyschosis, myelitis, mononeuritis, peripheral neuropathy Heme – Hemolytic anemia, neutropenia, lymphopenia thrombocytopenia Immunological – ANA, DNA, Sm, Low Complements, Coombs +, Antiphospholipid Ab’s Performance of SLICC Criteria 1997 ACR Criteria 2012 SLICC Criteria Sensitivity 2907349 (83%) 340/349(97%) Specificity 326/341 (96%) 288/341(84%) 74 62 Misclassified cases Petri M et al, Arth & Rheum 2012; 64: 2677–2686 Clinical Features on Presentation in SLE • • • • • Arthritis or Arthralgia Skin Involvement Nephritis Fever Other 55% 20% 5% 5% 15% Organ Involvement in the Course of SLE – Joints – Skin • Rashes – Discoid Lesions – Alopecia – – – – – Pleurisy/Pericarditis Kidney Raynaud’s Mucous Membranes CNS (Seizures/Psychosis/CVA) 90% 70% 30% 40% 60% 50% 20% 15% 15% 50% Patients Have Organ Damage In the Course of Disease 24.2% 15.0% 12.6% 11.7% 10.4% 10.1% 7.4% 7.4% 5.5% 6.1% 2.5% 1.2% Musculoskeletal Neuropsychiatric Ocular Renal Pulmonary Cardiovascular Gastrointestinal Skin Peripheral Vascular Diabetes Mellitus Malignancy Premature Gonadal Failure Acute Cutaneous Malar Rash- Note Sparing of Nasolabial Folds Discoid Lupus Chronic Cutaneous: Discoid Note Scarring, Hyperpigmentation Follicular Plugging Which patient has SLE? Subacute Cutaneous Lupus Papular squamous eruption Annular eruption Livedo Reticularis Non-specific Skin Manifestations Raynaud’s with tissue breakdown Vasculitis Joint Disease in SLE Nodules Possible Jaccoud’s Arthopathy: Nonerosive, Reducible Deformities Severe Hematologic Syndromes of SLE DX Antibodies Clinical Features APS ACL, antiB2GP1, LA Thrombosis inflammation ITP anti-IIb/IIIa, PF4 Bleeding <20K Thrombosis Hemolytic Anemia Coomb’s + Hemolysis TTP VWB multimer protease antibodies Catastrophic APS HELLP Syndrome TTP of SLE Bleeding anti-FVIII (IX, X!, XII, XIII) Hematomas, Hematuria GI/mucosal bleeds Anti-Cardiolipin Antibody Syndrome • Recurrent arterial or venous events • Obstetrical – Recurrent miscarriages/fetal growth retardation • Thrombocytopenia • Incidence of + Antibodies in SLE – LAC -30% – ACL- 23-27% – Anti- B2 Glycoprotein 1 - 20% • 2 + tests 12 weeks apart to confirm diagnosis! Lupus Nephritis Class I: normal glomeruli (~8% of biopsies) Class II: pure mesangial alterations (~40% of biopsies) Class III: focal glomerulonephritis (~15% of biopsies) Class IIIA: focal segmental glomerulonephritis (~12% of biopsies) Class IIIB: focal proliferative glomerulonephritis Class IV: diffuse glomerulonephritis (~25% of biopsies) Class V: diffuse membranous glomerulonephritis (~8% of biopsies) Class VI: advanced sclerosing glomerulonephritis Prognosis in Lupus Nephritis • Predictors of poor prognosis: – – – – – – – – Black race Male Anemia creatinine Nephrotic range proteinuria Glomerular & tubulointerstitial scarring Severe tubulointerstitial nephritis Chroniciy index > 3 ACR NOMENCLATURE AND CASE DEFINITIONS FOR NEUROPSYCHIATRIC LUPUS SYNDROMES Central nervous system Aseptic meningitis Cerebrovascular disease Demyelinating syndrome Headache (including migraine and benign intracranial hypertension) Movement disorder (chorea) Myelopathy Seizure disorders Acute confusional state Anxiety disorder Cognitive dysfunction Mood disorder Psychosis ARTHRITIS & RHEUMATISM 1999, pp 599-608 Prevalence of 12 NP Clinical Syndromes in CNS lupus (N=300) • • • • • • • • • • • • Headache CVA Mood disorder Cognitive dysfunction Psychosis Seizure disorder Anxiety Disorder Aseptic meningitis Acute confusional state Transverse myelopathy Movement disorder Demyelinating syndrome 24% 18% 17% 11% 8% 8% 7% 4% 4% 1% 1% 1% Sanna G, et al Journal of Rheumatology 2003:30;985-992 • • • • • • • • Diagnostic Studies in CNS Lupus CT MRI SPECT PET MRA CT angiogram Conventional angiograms CSF analyses – Cells – Protein – Oligoclonal bands – IgG/albumin index – Cytokines • EEG • Neuropsychological testing • Anti-neuronal antibodies (e.g. ribosomal-P, neurofilimant, NR2 NMDA glutamate receptor) Current Goals of Rx with SLE • Control daily symptoms that decrease quality of life • Manage acute periods of potentially lifethreatening or organ threatening involvement • Minimize risk of life-threatening disease flareups during periods of disease stabilization Treatment • • • • • • • • • • Hydroxychloroquine Corticosteroids ASA NSAIDS Azathioprine MTX/Leflunomide Mycophenolate Mofetil Cyclophosphamide Anticoagulants Biologics RX For SLE REQUIRES A DISCLAIMER EULAR Treatment Guidelines: General Management • Antimalarials and/or Glucocorticosteroids – Use in pts w/o major organ manifestations • NSAID’s – Use judiciously for limited period of time in pts at low risk of complications with this drug class • Immunosuppressive Rx – Use in non-responsive pts or in pts where dose of corticosteroids cannot be decreased to acceptable doses for chronic use Anti-malarials • All patients should be on Rx if tolerated – 2 studies show decrease frequency of major/minor flares – Mild anti-platelet effect – Beneficial cholesterol effects • Useful for skin/joint/pleurisy/pericarditis • Hydroxychloroquine safer than Chloroquine – Eye evaluation every 6 month-year • Atabrine does not cause eye toxicity but can cause yellow skin Hydroxychlorquine Reduces Organ Damage Fessler B, et al Arth & Rheum 2005;1473-1480 Hydroxychloroquine in Lupus Pregnancy • No HCQ exposure during pregnancy (N=163) • Continuous use of HCQ during pregnancy (N=56) • Cessation of HCQ treatment either in the 3 months prior to or during the first trimester of pregnancy (N=38) • Results – No difference in congenital abnormalities, stillborns miscarriages – Higher incidence of Lupus Activity and Flare in Non-users Clowse, M et al A & R 2006:54; 3640-3647 Immunosuppressives • Methotrexate-(+ Hydroxychloroquine) – 7.5-25mg/week – Best for arthritis • Azathioprine- (+ Hydroxychloroquine) – Check TMPT assay pre-rx – Useful for joint/skin/nephritis – 3-6 months for effect Immunosuppressive II • Leflunomide- (+ Hydroxychloroquine) – 3rd line for joint/skin/nephritis – Very tetragenic • Mycophenylate – Use for nephritis – 3rd line for skin/joint Mycophenolate Mofetil • Hydrolyzed to active form: Mycophenolic acid • Inhibits Inosine Monophosphate Dehydrogenase: Blocks purine synthesis • Affects activated/dividing lymphocytes • Originally developed to prevent allograft rejection • Dosed: 500 Mg PO BID – 1.5g PO BID Remission rates: MMF vs IVC Intent-to-Treat analysis p = 0.009 Responding (%) 60 37/71 50 p = NS 40 p = 0.005 30 20 10 16/71 21/7 17/69 1 21/69 Partial Remission Complete + Partial Remission 4/69 0 Complete Remission MMF IVC Ginzler, E. et al., N Engl J Med 2005;353:2219-28 Induction Rx of Lupus Nephritis Randomized/Rx’d Study Endpoint Completed 24 wks Rx Complete Remission Treatment Failure Death UGI Toxicity Hematologic Toxicity Infection/Serious Oral MMF 71/71 66 56 16 34 0 23 21 40/1 IV CTX 69/66 64 42 4 48 3 25 31 56/6 Ginzler E et al NEJM; 353:2219-28 P value 0.017 0.005 0.01 Belimumab Mechanism of Action Slow onset Lancet 2011 Belimumab Reduction in Steroid Dose Time to Flare Belimumab Improved or Stabilized SLE Disease Activity and Reduced Flare Rate during 3 Years of Therapy Percent Flare 80% 60% SS flares Severe SS flare 40% 20% 0% 52 wk PBO 52 wk 76 wk 128 wk 160 wk Furie Eular 2008; Merrill ACR 2011 6 year data Belimumab (Benlysta) • 1st new drug for SLE in 50 yrs • Pts most appropriate for rx have musculoskeletal, cutaneous, immunological disease despite standard of care – Not studied in CNS or renal disease – Unknown effect in African Americans • Side effects – Hypersensitiviy reactions – Low risk of serious infections – Depression SLE Rx Algorithm Mild •Skin Manifestations •Arthritis Rx HCQ or MTX + Prednisone SLE Severity Moderate •Mild/Moderate Nephritis •Thrombophlebitis •Major Serositis Induction Rx IV MMF x3 days followed by: AZA (2mg/kg/d) or MMF 2-3 gms/d + Prednisone .5 mg/kg x 4-6 wk, then taper Maintenance AZA or MMF + Steroid Taper +(?) Belimumab Severe •Severe Nephritis (Class 4 or 5 with renal impairment) •Severe refractory thrombocytopenia/hemolytic anemia •Pulmonary hemorrhage •CNS disease •Vasculitis Induction Rx IV MMF Or CTX( 750 mg/m2) + IV CYC 1 gm x3 d Maintenance Rx CTX 750mg/m2/mo x 6mo or MMF 2-3 gm/day + Prednisone Taper EULAR SLE Treatment Guidelines: Adjuvant Therapy • Photoprotection – May be helpful in skin manifestations • Estrogens – BCP’s/ERT’s can be used, but accompanying risks should be assessed • Lifestyle modifications – Smoking cessation, wgt loss, exercise likely to be helpful • Other Agents – Statins, Bisphophonates, Ca/Vit D, low dose ASA, anti-hypertensives (including ACE inhibitors) should be considered depending upon situation Lupus Mortality • Early Mortality – Infections – Lupus-related • Late Mortality – Cardiovasular Disease – Malignancies Proposed Care Pathway for Management of SLE Patients Registration of pts with SLE Known CHD Screening for risk factors Assessment of clinical manifestations No known CHD BMI <25kg/m2 Management for individual risk factors as per guidelines Individual risk factor mgmt BP BMI > 25kg/m2 Wgt Reduction ?Steroid Adjustment Wajed J et al Rheumatology 2003 Cholesterol Diabetes Thank You! Mortality Rates are Declining Bernatsky S et al, Arth & Rheum; 2006: 2550-2557 Additional Lupus Related Measures • Aspirin- • ACE inhibitors- Known vascular disease SLE + One risk factor Anticardiolipin Ab/LAC Prevalent CVD including CHF LVH DM Preferred second drug for hypertension Wajed J et al Rheumatology 2003 Oral Contraceptives in SLE • SELENA Trial (Safety of Estrogen in Lupus Erythematosus) – Double-blind non-inferiority, multicenter – OC’s did not increase expected flare rate in mildmoderate disease1 • Single blind uncontrolled, single center IUD (Mexico City) 2 – Similar flare rates • Neither study addressed severe active disease 1. Petri, M et al NEJM 2005;353:2550-2558 2. Sanchez-Guerrero J, NEJM, 2005;353:2539-2549 BCP vs Is Atherosclerosis Increased in SLE? 498 women with SLE at University of Pittsburgh 2208 women in Framingham Offspring Study Lupus pts 35-44 years: MI 50 x more likely Risk Factors: Older age at SLE Dx Longer lupus disease duration Longer corticosteroid use Hypercholesterolemia Post menopause Manzi et al Am J Epidemiol 1997 Is Atherosclerosis Increased in SLE? Adjusted rates in Canadian SLE pt for baseline traditional risk factors (age, sex, BP, cholesterol, smoking glucose, LVH) using Framingham logistic regression equations 263 SLE patients: 21 MI, 19 CVA, 37 any CVD Event RR 95%CI MI 8.3 (4.9-12.4) CVA 6.7 (3.6-10.9) Any 5.7 (3.9-7.7) Esdaile et al Arthritis and Rheum 2001 Histopathologic Classification of Lupus Nephritis Class I. Class II. Class III. Minimal mesangial nephritis Mesangial proliferative nephritis Focal lupus nephritis (<50% of glomeruli are involved) A. Active lesions: focal proliferative GN A/C. Active and chronic lesions: focal proliferativ and sclerosing GN C. Chronic inactive lesions with glomerular scarring: focal sclerosing GN. Class IV. Diffuse lupus nephritis (>50% of glomeruli are involved) diffuse segmental (IV-s) type, when only a part of the involved glomeruli are affected diffuse global GN (IV-G), when the entire glomeruli are affected IV-S (A), IV-G (A), IV-S (A/C), IV-G (C), IV-S (C), Class V. Membranous lupus nephritis May associate with findings characterised in class III/IV. Class VI. Sclerosing glomerulonephritis 90% of glomeruli are sclerotic Rituximab • Rituximab is a novel genetically engineered anti-CD20 therapeutic monoclonal antibody that selectively depletes CD20+ B cells Shaw et al, 2003: Silverman & Weisman, 2003 – Roche core set Blys/BAFF Lupus Rx Algorithm Crow M, NEJM 2008;359:956-961 SLE Genes: Ethnic Differences GENE CAUC AFR references TNF alpha X Hum Immunol 65:622 16q12-13 X X X E J Hum Gen 12:668 12q24 FcgRIIIa FcgRIIa 11p13 (discoid) NO synth prom FasL 1q23 Am J Hum Gen 74:73 Rheum (Ox) 42:446 X X X X J Clin Invest 95:1348 J Inv Derm Sym 9:64 J Rheum 30:60 J Immun 170:132 SLEDAI= SLE Disease Activity Index Arce-Salinas C, Rodrigues-Carcia F, EULAR 2008 THU0234 IMPROVED SURVIVAL IN SLE: 1955-1990 % YEARS Wallace in Arthritis and Allied Conditions, 13th Ed V2, p1319 Koopman, ed Ideal Risk Factors • BP- <130/60 • LDL-<2.6 mmol/l • Diabetes- FBS < 100 Random BS <110 • Smoking- stop! • Obesity- BMI<25kg/m2 Wajed J et al Rheumatology 2003 Rahman A, Isenberg D, NEJM; 2008: 929-039 Lupus nephritis Class I Minimal mesangial Normal light microscopy; abnormal electron microscopy Class II Mesangial proliferative Hypercellular on light microscopy Class III Focal proliferative <50% glomeruli involved Class IV Diffuse proliferative >50% glomeruli involved; segmental/global Class V Membranous Predominantly nephrotic disease Class VI Advanced sclerosing Chronic lesions and sclerosis Lupus Genetics • • • • + ANA in general populationPrevalence in 1st degree relativeConcordance in monozygotic twinsConcordance in dizygotic twins- 5-15% 10% 25% 2%