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The Patient With Small Bowel Crohn’s Disease. David T. Rubin, MD Associate Professor of Medicine Program Director, The Fellowship in Gastroenterology, Hepatology, and Nutrition Co-Director, The Inflammatory Bowel Disease Center University of Chicago Medical Center Chicago, Illinois. :00.
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The Patient With Small Bowel Crohn’s Disease David T. Rubin, MD Associate Professor of MedicineProgram Director, The Fellowship in Gastroenterology, Hepatology, and NutritionCo-Director, The Inflammatory Bowel Disease CenterUniversity of Chicago Medical CenterChicago, Illinois
:00 Answer Now Audience Question 1 What is your first-line approach to treating moderately-to-severely active CD of the ileum? • Mesalamine • Budesonide • Prednisone • AZA/6-MP • Anti-TNF therapy • AZA/6-MP + anti-TNF combination therapy • MTX + anti-TNF combination therapy Answer 3
:00 Answer Now Audience Question 1 What is your first-line approach to treating moderately-to-severely active CD of the ileum? • Mesalamine • Budesonide • Prednisone • AZA/6-MP • Anti-TNF therapy • AZA/6-MP + anti-TNF combination therapy • MTX + anti-TNF combination therapy Answer 3
:09 Answer Now Audience Question 2 For a CD patient in whom AZA/6-MP treatment fails, how would you initiate anti-TNF therapy? • Discontinue AZA/6-MP, and then initiate anti-TNF therapy • Continue AZA/6-MP indefinitely in combination with anti-TNF therapy • Continue AZA/6-MP for a period of time while starting anti-TNF therapy, and then discontinue it Answer 3
:09 Answer Now Audience Question 2 For a CD patient in whom AZA/6-MP treatment fails, how would you initiate anti-TNF therapy? • Discontinue AZA/6-MP, and then initiate anti-TNF therapy • Continue AZA/6-MP indefinitely in combination with anti-TNF therapy • Continue AZA/6-MP for a period of time while starting anti-TNF therapy, and then discontinue it Answer 3
Case Study: TimPresentation to PCP • 18-year-old male high school student • Abdominal pain, 6-month duration • Weight loss, 10 pounds • 3 to 4 loose stools per day, some urgency • Doesn’t smoke cigarettes • Takes ibuprofen for prior basketball injury • 400 mg 3 or 4 times per day • No family history of CD PCP, primary care physician.
TimExamination and Referral • Physical examination • Tenderness and fullness in right lower quadrant • Small perianal skin tags • Referred to gastroenterologist for diagnostic testing • MRE • Colonoscopy • Laboratory results • Hemoglobin 8.7 g/dL • WBC 10 х 109/L • Platelets 454,000 (normal range, 120,000-400,000) • CRP 25 mg/L (normal level, <4.0) CRP, C-reactive protein; MRE, magnetic resonance elastography; WBC, white blood cell.
MRE Results • Long segment of terminal ileal inflammation • Some proximal colon thickening
Colonoscopy Results • Colitis in ascending colon • Distorted ileocecal valve precluding intubation of the ileum
TimDiagnosis • Moderate-to-severe CD of the ileum and colon with perianal involvement
Natural History of CD 100 90 High potential Low potential 80 70 60 Penetrating Cumulative Probability, % 50 Inflammatory 40 30 Stricturing 20 10 0 0 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 192 204 216 228 240 Months Patients at risk (N) over time → 2,002 552 229 95 37 Cosnes J, et al. Inflamm Bowel Dis. 2002;8:244-250.
Corticosteroid dependence 32% (n=24) Surgery 38% (n=28) 0 CorticosteroidsShort- and Long-Term Efficacy in CD Complete 58% (n=43) Partial 26% (n=19) None 16% (n=12) 30-day response (N=74) Prolonged response 28% (n=21) 1-year response (N=74)a a One patient lost to follow-up. Faubion, et al. Gastroenterology. 2001;121:255-260.
Placebo Budesonide 9 mg/d Mesalamine 4 g/d Prednisolone 40 mg/d Therapy for Active Crohn’s DiseaseCorticosteroids 80 66 62 60 53 51 Patients in Remission, % 40 36 20 20 0 Rutgeerts 19943N=176 P<0.12 Thomsen 19982 N=182 P<0.001 Greenberg 19941N=258 P<0.001 1. Greenberg GR, et al. N Engl J Med. 1994;331:836-841; 2. Thomsen OO, et al. N Engl J Med.1998;339:370-374; 3. Rutgeerts P, et al. N Engl J Med. 1994;331:842-845.
Maintenance of Remission in CDAZA a 100 AZA 2.5 mg/kg per day (n=33) Placebo (n=30) 80 60 Patients Not Failing Trial, % 40 P=0.001 20 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Duration of Trial, months a Remission induced by prednisolone tapered over 12 weeks. Candy S, et al. Gut. 1995;37:674-678.
Murine Human Anti-TNF AgentsStructure Certolizumab pegol IFX Adalimumab Fab IgG1 Fc PEG Monoclonal antibody PEGylated humanized Fab′ fragment containing 2x20 kDa PEG molecules Fab, fragment antigen binding; Fc, fragment crystallizable; IgG, immunoglobulin G; IFX, infliximab; PEG, polyethylene glycol.Hanauer SB. Presented at: Advances in Inflammatory Bowel Diseases Crohn’s and Colitis Foundation’s Research and Clinical Conference; Hollywood, FL; December 4-7, 2008. http://vid.imedex.com/pdf/5477/hanauer.pdf.
100 ACCENT I1 Week 54 PRECiSE 12 Week 26 PRECiSE 23 Week 26 CHARM4 Week 56 CLASSIC I5-II6 Week 24 80 60 48 Remission, % 41 36 33.3 40 29 20 13.6 20 0 Episodic IFX (N=110) Combined IFX (N=225) CertolizumabPegol (N=331) CertolizumabPegol (N=215) Adalimumab (N=172) Adalimumab (N=157) Maintenance of Remission in CD Anti-TNF Therapies Adalimumab (N=76) ACCENT, A Crohn’s Disease Clinical Trial Evaluating Infliximab in a New Long-Term Treatment Regimen; CHARM, Crohn’s Trial of the Fully Human Antibody Adalimumab for Remission Maintenance; CLASSIC, Clinical Assessment of Adalimumab Safety and Efficacy Studied as Induction Therapy in Crohn’s Disease; EOW, every other week; PRECiSE, Pegylated Antibody Fragment Evaluation in Crohn’s Disease.1. Hanauer SB, et al. Lancet. 2002;359:1541-1549; 2. Sanborn W, et al. NEJM. 2007;357:228-238; 3. Schreiber S, et al. NEJM. 2007;357:239-250; 4. Colombel, JF et al. Gastroenterol. 2007;132:52-65; 5. Hanauer SB, et al. Gastroenterol. 2006;130:323-333; 6. Sanborn W, et al. Gut. 2007;56:1232-1239.
Certolizumab pegol Placebo Adalimumab Higher Remission Rates With Shorter Disease Duration 80 68 CHARM2 PRECiSE 21 70 70 59a n=19 60 60 55 n=39 47 n=20 50 50 44 41b 40 n=45 Patients in CDAI Remission (<150) at Week 26, % 40 40 Patients in CDAI Remission (<150) at Week 26, %2 n=131 n=233 n=57 37.1 36.4 30 30 n=35 n=22 29.1 25 20 20 23.5 n=55 n=36 17 n=98 14 10 10 n=23 n=111 0 0 <1 Year 2 to <5 Years 2 to <5 Years 1 to <2 Years ≥5 Years <2 Years ≥5 Years Disease Duration Disease Duration aP=0.002; bP<0.001.CDAI, Crohn’s Disease Activity Index. 1. Sandborn WJ, et al. Presented at: Annual Scientific Meeting of the American College of Gastroenterology; October 12-17, 2007; Philadelphia, PA; 2. Schreiber S, et al. Gastroenterol. 2007;132:A-147.
Top-Down/Step-Up1 Early combined therapy Steroid-naïve Immune modifier-naïve Duration: 2 years End point: 104 weeks SONIC2 Not in remission Some patients on steroids Duration: 1 year End points: 26 weeks,52 weeks Early Biologic Trials: 2008 IFXAZA Steroids steroids AZA IFX IFX + AZA IFX alone AZA alone SONIC, Study of Immunomodulator-Naïve Patients in Crohn’s Disease.1.D’Haens G, et al. Lancet. 2008;371:660-667; 2. Sandborn W, et al. Presented at: 2008 American College of Gastroenterology Annual Scientific Meeting and Postgraduate Course. October 3-8, 2008; Orlando, FL.
100 80 60 40 20 0 Top-Down vs Step-Up TrialClinical Results at 2 Years Early combined immunosuppression (top-down; n=66) Conventional management (step-up; n=67) 100 P=0.0001 P=0.028 P=0.431 80 P=0.006 P=0.797 Patients Given AZA/6-MP, % 60 Patients in Remission,a % 40 20 0 14 26 52 78 104 26 52 78 104 Weeks Weeks a Remission defined as CDAI <150, no steroids, no surgery.D’Haens G, et al. Lancet. 2008;371:660-667.
SONICCorticosteroid-Free Clinical Remission at Week 26 AZA + placebo IFX + placebo IFX + AZA 100 P<0.001 80 P=0.009 P=0.022 56.8 60 Patients, % 44.4 40 30.6 20 52/170 75/169 96/169 0 Sandborn W, et al. Presented at: 2008 American College of Gastroenterology Annual Scientific Meeting and Postgraduate Course. October 3-8, 2008; Orlando, FL.
:10 Answer Now Audience Question 3 What would you prescribe as initial treatment for Tim? • Mesalamine • Budesonide • Prednisone • AZA/6-MP • Anti-TNF therapy • AZA/6-MP + anti-TNF combination therapy • MTX + anti-TNF combination therapy Answer 3
:10 Answer Now Audience Question 3 What would you prescribe as initial treatment for Tim? • Mesalamine • Budesonide • Prednisone • AZA/6-MP • Anti-TNF therapy • AZA/6-MP + anti-TNF combination therapy • MTX + anti-TNF combination therapy Answer 3