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Pro: All medications may be stopped for Crohn’s disease patients in remission Miguel Regueiro, M.D. Professor of Medicine Associate Chief for Education.

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Presentation on theme: "Pro: All medications may be stopped for Crohn’s disease patients in remission Miguel Regueiro, M.D. Professor of Medicine Associate Chief for Education."— Presentation transcript:

1 Pro: All medications may be stopped for Crohn’s disease patients in remission Miguel Regueiro, M.D. Professor of Medicine Associate Chief for Education Clinical Head and Co-Director, IBD Center University of Pittsburgh School of Medicine

2

3 This is Tom’s side: “Keep taking it Until Something Better Comes Along”

4 UPMC vs Mt Sinai Pittsburgh vs New York City Based on the name, the storied success of Mt Sinai IBD Center should win this debate, but….look beyond the name 4

5 UPMC and Pittsburgh on a typical summer morning

6 Mt Sinai on that same, bright summer morning

7 Why even have this debate? Safety Cost Maybe there ARE patients who can stop all treatment and do well. …..and this is probably the #1 question asked by patients starting meds…… 7

8 Prior to considering discontinuation of treatment, is it possible that we are OVERtreating a subset of patients? What happens to patients NOT maintained on Biologics? In essence, pts brought into remission but then maintained on placebo? - Focus on placebo rates 8

9 Pediatric CD: Prednisone induction and 6-MP maintenance 50% on placebo maintain remission 9 Markowitz, et al. Gastroenterol. 2000;119(4):

10 Prednisone induction, MTX maintenance 39% on placebo maintain remission 76 patients in remission following MTX 25 mg IM x 16 wk Patients steroid- dependent Randomized to maintenance MTX 15 mg IM (N=36) or placebo (N=40) x 40 wk Weeks Since Randomization Percent Remaining in Remission Placebo MTX P= % 39% Feagan BG, et al. N Engl J Med. 2000;342:

11 ACCENT I: IFX induction and maintenance ~20% on placebo maintain remission P =.01 Hanauer SB et al. Lancet. 2002;359:1541. *Among patients responding at Week 2 P =.021 P < % 28% 50% 38% 20% 16% Clinical ResponseClinical Remission Proportion of Patients Single Dose (n=102)5 mg/kg q 8 wk (n=104) 10 mg/kg q 8 wk (n=105)

12 CLASSIC II: ADA induction and maintenance 44% on placebo maintain remission LOCF; ITT population, n=55 *P<0.05 versus placebo Placebo (n=18) 40 mg EOW (n=19) 40 mg wkly (n=18) Sandborn WJ, Gut 2007.

13 PRECiSE 2: Certolizumab induction and maintenance 29% on placebo maintained remission All (N = 210/215)CRP ≥ 10 (N = 101/112) % of Patients 3 Injections + PlaceboCertolizumab Pegol 400 mg Schreiber S, et al, last and Senior Author Sandborn WJ NEJM 2007 p < 0.01

14 20%-50% patients from the IMM and antiTNF studies maintain remission WITHOUT medication This means that maybe there are a cohort of pts we OVERtreat – once they are in remission on IMM/antiTNF, they can stop Rx 14 The problem: correctly identifying the patients who can stop rx once they are in remission

15 We could end the debate here and agree that up to 50% of pts may not need long term treatment – …but the debate is about stopping treatment in patients in remission…. 15

16 Three Possible Scenarios Stop AZA/6MP and continue antiTNF Stop antiTNF and continue AZA/6MP Stop BOTH meds (no data at present) All antiTNF “stop” studies with IFX/ADA Most data in Crohn’s (less data in UC) 16

17 What are the data on stopping AZA/6MP in COMBO antiTNF? Van Assche et al Gastroenterol 2008 Oussalah et al Am J Gastro 2010 Kennedy et al Aliment Pharmacol Ther 2014 –This last study evaluated stopping thiopurines alone 17

18 Withdrawal of Immunosuppression in CD treated with Scheduled Infliximab Maintenance: A RCT Van Assche G, et al. Gastroenterol 2008;134: >6 months of IFX and IMM Disease controlled (median CDAI 138) Randomized 1:1 –IFX 5mg/kg q 8wk with CONtinued IMM –IFX 5mg/kg q 8wk with DIScontinued IMM –Duration of study: 104 weeks (~ 2 yrs) –Primary endpoint: decrease in interval or increase in dose or stopped IFX 18

19 Clinical Outcomes at 2 yrs were no different between CON and DIS IMM 19

20 Predictors of Infliximab Failure after Azathioprine Withdrawal in CD Treated with Combination Rx Oussalah A et al. Am J Gastroenterol 2010;105: Retrospective, observational study 48 pts >6 mos AZA/IFX in remission AZA withdrawn in all (no control arm, part of investigator’s standard of care) IFX 5mg/kg continued every 8 weeks Primary endpoint: infliximab failure –Change interval or dose in response to flare –Intolerance of infliximab –Abdominal surgery due to progression of CD 20

21 The majority of pts (73%) did NOT fail IFX after AZA withdraw median duration without failure = 23m 21

22 Thiopurine withdrawal during sustained clinical remission in IBD: relapse rates and predictive factor Kennedy NA et al. AP&T 2014;40: >3 yrs of 6MP/AZA (no antiTNF) for UC or CD Sustained remission at time of withdrawal Retrospective 11 center clinical audit –Minimum follow-up after withdrawal 12 mos. –Primary endpoint: relapse at 12 months 22

23 77% CD and 88% UC still in remission at 1 yr 23 CD 23% 1 yr relapse CRP predicted relapse UC 12% 1 yr relapse WBC predicted relapse

24 All Studies Suggest: Patients in Remission on combination antiTNF and IMM or IMM alone MAY stop the IMM 24

25 What are the data on stopping antiTNFs from COMBO Rx? Crohn’s disease studies –Waugh AP&T 2010 –Louis Gastroenterol 2011  only study that prospectively withdrew infliximab in pts on combo therapy in remission –Molnar AP&T 2012 –Steenholdt Scand J Gastro

26 Maintenance of Clinical Benefit in CD pts after Discontinuation of IFX Waugh et al. Aliment Pharmacol Ther 2010;32: CD pts in remission on IFX stopped IFX after 1 yr. –67% on concomitant IMM  44% on concomitant AZA  19% on concomitant MTX  4 % on concomitant 6MP –33% on no concomitant IMM Remission and relapse rates assessed over 7 years 26

27 1 yr after stopping IFX: 50% relapsed, BUT 50% remained in remission 27

28 Maintenance of CD Remission on AZA after Infliximab is Stopped (STORI) Louis et al. Gastroenterology pts in remission on IFX and AZA –At least 1 year on IFX/AZA and > 6mos remission off of steroids –Followed for at least 30 months 28

29 29 After Infliximab Withdraw: 50% do NOT relapse

30 STORI Study Conclusions – Infliximab Withdraw, AZA continue 50% did NOT relapse (maintained remission) after stopping IFX 50% relapsed within 1 yr of stopping IFX 88% of relapsers responded to retreatment with IFX 30

31 Predictors of relapse in pts with Crohn’s ds in remission after 1 year of biological therapy Molnar T et al. Aliment Pharmacol Ther 2013;37: CD pts in clinical remission on antiTNF stopped antiTNF after 1 year (Relapse After Stopping biologics in Hungary = RASH study) –87 IFX pts and 34 ADA (79% naïve to biologics) –103 pts (85.1%) on concom thiopurines Primary endpoints: –time to clinical relapse that necessitated restarting biologics and >100 point increase in CDAI ( the CDAI had to be over 150 ) –Identification of factors associated with relapse 31

32 32 45% relapsed/resumed antiTNF (median time 6m)

33 RASH Study Conclusions – IFX withdrawal in CD remission after 1 yr 55% did NOT relapse (did not require resumption of antiTNF, CDAI<150) 45% DID relapse –Previous antiTNF and dose intensification were predictors of relapse (p <.05) –Smoking, Elevated CRP, Corticosteroids were likely predictors of relapse (p = ) 54.7% of relapses responded to retreatment with IFX/ADA –9.1% did undergo surgery 33

34 Outcome after discontinuation of infliximab in IBD pts in clinical remission Steenholdt C et al. Scand J Gastroenterol 2012;47: IBD (53 CD and 28 UC) Observational, single center, retrospective All pts had primary response to IFX and were in a clinical remission Primary endpoints: –Clinical relapse rate at 1 year –Predictors of relapse 34

35 1 year after IFX Withdraw 61% CD and 75% UC do NOT relapse 35

36 All Studies Suggest: ONE – HALF OF PATIENTS ON COMBO MAY STOP ANTI-TNF The trick is picking the right patient to stop the antiTNF 36

37 Who is the WRONG patient to consider stopping meds? (i.e. high likelihood of relapse) Signs of Active CD prior to stopping IFX: –Hgb <145 g/L –CRP >5 mg/mL –Calprotectin >300 ug/g –CDEIS >0 Smokers Prior Biologics Dose Intensification Need for steroids Louis et al. Gastroenterol 2011 and Molnar et al. AP&T

38 Who is the RIGHT patient to consider stopping antiTNF? …..the patient in a deep remission without recent steroid use….. 38

39 Deep Remission is Key at predicting maintenance of “anti- TNF free” remission Mucosal Healing Predicts Sustained Clinical Remission in Patients With Early-Stage Crohn’s Disease (from “Step Up vs Top Down Study”) Baert et al. Gastroenterology 2010;138:

40 62.5% of pts with complete MH at yr 2 (SES = 0) had IFX-free remission yrs

41 Putting the data all together…. 41

42 42 Study 1 st author Stop IMM Cont aTNF Stop aTNF Cont IMM Cont ALL Stop Nothing (index) Overall Chance: Sustained Remission Van Assche 55% ~2yr45% Oussalah 27% ~2yr73% Waugh 50% 1 yr50% Louis 50% 1 yr50% Molnar 45% 1 yr50%-55% Steenholdt 39% CD 1 yr 25% UC 1 yr 61%-75% Six Studies CONTINUE 50%-58% 5 yr 42%-50% 50:50 Chance of Relapse whether you stop or continue

43 What about stopping antiTNF and IMM? No data at this time on stopping both There are data on stopping 6MP/AZA monotherapy, > 75% still in remission Maybe this would be the group who could stop everything? –Deep Remission for > 3 years –Endoscopic scores 0 (sustained mucosal healing) –Normal CBC, ESR/CRP, Fecal Calprotectin –Normal histology –Nonsmokers 43

44 …and as presented at the beginning of my talk, I’d like to leave you with something to think about….. Are we overtreating a subset of patients? Once deep remission is achieved, could we stop treatment? I think it depends if you/your pt has the “glass is half full or half empty” approach to life 44

45 When considering who wins this debate……. …….I showed you a lot of evidenced based data, I tried to take a scientific approach…..

46 …don’t get fooled by Tom’s Smoke and Mirrors approach 46

47 Synthesis and Consensus: Algorithm from Review article: why, when and how to de ‐ escalate therapy in inflammatory bowel diseases Alimentary Pharmacology & Therapeutics Pariente B and Laharie D, 10: , JUN

48 Deep remission Long duration combo tx Clinical remission Mucosa better, not perfect Short duration combo tx Monotx Mucosal ds Perianal ds Complicated ds


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