Faculty Bibliography

INTRODUCTION: Tofacitinib is an oral, small molecule JAK inhibitor for the treatment of ulcerative colitis (UC). Monitoring of liver enzymes, lipids, absolute neutrophil count (ANC), absolute lymphocyte count (ALC), and hemoglobin (Hg) is recommended in patients (pts) with UC treated with tofacitinib.1 METHODS: Changes in laboratory parameters (liver enzymes, lipids, ANC, ALC, and Hg) from baseline at Month 36 were investigated in pts with moderately to severely active UC treated with tofacitinib in OCTAVE Open, an ongoing Phase 3, open-label, long-term extension (OLE) study (NCT01470612; data as of Sep 2018, database not locked). Pts who completed or demonstrated treatment failure in the OCTAVE Sustain maintenance study, or those who were non-responders after completing OCTAVE Induction 1 or 2, were eligible for the OLE study. Pts in remission at the end of OCTAVE Sustain were assigned to tofacitinib 5 mg twice daily (BID); all other pts were assigned to tofacitinib 10 mg BID in the OLE study. The proportions of pts with laboratory values meeting protocol criteria for discontinuation (Table 1), with investigator-defined hyperlipidemia treatment-emergent adverse events (TEAEs), and with a change in lipid-lowering agent (LLA), were evaluated.
RESULT(S): For pts treated with tofacitinib 5 and 10 mg BID, changes from OLE study baseline in liver enzymes, lipids, ANC, ALC, and Hg at Month 36 and the proportion of pts meeting protocol criteria for discontinuation are presented in the Table 1. Hyperlipidemia TEAEs were experienced by 1.7% and 1.2% of pts treated with tofacitinib 5 and 10 mg BID, respectively. Furthermore, 8.0% and 6.6% of pts treated with tofacitinib 5 and 10 mg BID, respectively, had a new LLA added, and 2.3% and 1.7% of pts treated with tofacitinib 5 and 10 mg BID, respectively, had their LLA dose increased.
CONCLUSION(S): No major changes from OLE study baseline were observed in the laboratory parameters recommended for monitoring in pts treated with tofacitinib up to Month 36. In addition, the proportions of pts meeting protocol criteria for discontinuation for liver enzymes, ANC, ALC, or Hg, with hyperlipidemia TEAEs or with a change in LLA, were evaluated and were low in both tofacitinib treatment groups. Due to the dose assignment in the OLE study, the pt populations in the treatment arms differ in terms of their baseline remission status. (Figure Presented)

INTRODUCTION: Relapse of Crohn's disease (CD) is common after surgical resection. Prior data have demonstrated that postoperative tumor necrosis factor antagonists (anti-TNF) may reduce recurrence, although little is known about the efficacy of other biologic therapies. The aim of this study was to compare biologics for preventing postoperative objective recurrence in adult CD patients.
METHOD(S): We performed a retrospective chart review of CD patients who underwent intestinal resection from 2012 to 2018. Demographics, IBD history, pre- and postoperative course were obtained from the electronic medical record. The primary outcome was postoperative recurrence during follow up, defined as a composite of endoscopic (Rutgeerts grade > i2), biochemical (increase in CRP >5 mg/dL), or radiographic (presence of active inflammation) disease recurrence stratified by postoperative biologic exposure, including anti-TNF, vedolizumab (VDZ), ustekinumab (UST), and no therapy. Student's t-test, Pearson's chi-squared, logistic and Cox regression analyses were used to detect differences in the composite and components of the outcome among these groups.
RESULT(S): 123 patients were included. CD recurrence occurred in 36.6% of patients (13.0% biochemically, 24.4% endoscopically, 16.3% radiographically) at a median of 6.9 months (IQR 3.3-14.1) from surgery (Table 1). The number of patients in the anti-TNF, VDZ, UST, and no therapy groups were 57 (46.7%), 6 (4.9%), 13 (10.7%), and 46 (37.7%), respectively. Biologic therapy was initiated after ileostomy reversal within 3 months for 55 patients (72.4%), between 3-6 months for 11 patients (14.5%), and between 6-12 months for 10 patients (13.2%). Adjusting for prior resection and anti- TNF exposure, any biologic initiation within 6 months of surgery was superior to initiation after 6 months for preventing postoperative endoscopic recurrence (OR 0.24, 0.06-0.92), but not for the composite outcome. There were statistically significant differences among biologics for recurrence (Figure 1). Adjusting for prior resection and anti-TNF exposure, less patients relapsed under anti- TNF exposure compared to UST (HR 3.46, 1.45-8.23) for the composite outcome, and compared to UST (HR 3.95, 1.43-10.9) and VDZ (HR 4.42, 1.02-19.1) for endoscopic recurrence (Figure 2).
CONCLUSION(S): Among CD patients, initiation of biologics within 6 months and anti-TNF agents were superior in preventing postoperative recurrence compared to other management strategies. (Figure Presented)

INTRODUCTION: Previous studies have demonstrated that exposure to anti-TNFalpha and/or immunomodulators for inflammatory bowel disease (IBD) following a diagnosis of cancer was not associated with an increased risk of new or recurrent cancer. There is little data regarding the use of newer biologics, vedolizumab and ustekinumab, after a diagnosis of cancer. We aimed to investigate whether patients with IBD and a history of cancer who were subsequently exposed to vedolizumab or ustekinumab have an increased risk of developing new or recurrent cancer.
METHOD(S): We reviewed the medical records of 5062 patients with IBD and cancer from an academic medical center between January 2013 and November 2018 to identify IBD patients who received vedolizumab or ustekinumab following a diagnosis of cancer. We collected demographic, IBD and cancer-related data. Our primary outcome was the development of new or recurrent cancer. Results were compared to historical data regarding the risk of new or recurrent cancer in patients exposed to anti-TNFalpha, an immunomodulator or no therapy for IBD following a diagnosis of cancer.
RESULT(S): We identified IBD patients who received vedolizumab (n = 59) or ustekinumab (n = 18) monotherapy following a diagnosis of cancer (Table 1). The median age at cancer diagnosis was 51 years (IQR 43-65) for vedolizumab and 57 years (IQR 55-66) for ustekinumab. During a median follow-up of 68 months (IQR 21-132) for vedolizumab and 48 months (IQR 12-96) for ustekinumab, 3 (5%) and 3 (17%) patients developed subsequent cancer, respectively. Compared to historical data, there were differences in subsequent cancer risk between exposure groups (Figure 1; log-rank 0.001). However, when adjusted for stage of prior cancer, compared to no therapy, there was no difference in risk of new or recurrent cancer between patients exposed to vedolizumab (HR 0.01, 0.01-7.58), ustekinumab (HR 0.85, 0.11-6.50), anti-TNFalpha (HR 0.60, 0.34-1.07) or immunomodulators (HR 1.01, 0.58-1.75) following a diagnosis of cancer.
CONCLUSION(S): In this single-center study, exposure to vedolizumab or ustekinumab in patients with IBD and a history of cancer conferred a low risk of new or recurrent cancer. Exposure to vedolizumab or ustekinumab monotherapy was not associated with an increased risk of subsequent cancer compared to historical data of exposure to anti-TNF, immunomodulators or no immunosuppression following a diagnosis of cancer. Larger studies are needed to confirm these findings. (Figure Presented)

INTRODUCTION: Gut microbial dysbiosis and impaired mucosal immunity play a major role in the pathogenesis of inflammatory bowel disease (IBD). Previous research has shown that IBD patients experience greater disease burden from gastrointestinal infections. The increasing availability of gastrointestinal multiplex polymerase chain reaction stool panels (GI PCR) has allowed for the rapid and accurate identification of viral, bacterial, and parasitic pathogens not readily diagnosable with conventional stool testing. We aimed to characterize the burden and risk factors for gastrointestinal infections on outpatients with and without inflammatory bowel disease presenting with symptoms of acute gastroenteritis.
METHOD(S): We performed a cross-sectional review of outpatients presenting with gastroenteritis to an academic medical center from September 2015 to March 2019 who received a FilmArray GI PCR. Baseline demographics, presence of IBD and disease characteristics, risk factors including travel history, sexual activity, HIV status, and symptoms on initial presentation were recorded. The primary outcome was the detection of an enteric pathogen. Secondary outcomes include the class of pathogen detected, i.e., viral, bacterial, parasitic. T-test and Chi-square analysis were used to compare outcomes between groups.
RESULT(S): We reviewed 815 outpatients who received GI PCR testing, of whom 94 (12%) were diagnosed with IBD. Patients with IBD were more likely to present to the initial visit with bloody diarrhea (46% vs. 8%, P < 0.001), hematochezia (15% vs. 6%, P = 0.001), and fever (23% vs. 9%, P < 0.001; Table 1). Of outpatients with IBD, 33 (35%) had a gastrointestinal pathogen detected compared to 216 (30%, P = 0.190) of non-IBD outpatients. Patients with IBD were more likely to have viral (28% vs. 18%, P = 0.044) or multiple pathogens (11% vs. 6%, P = 0.028) and less likely to have bacterial (61% vs. 73%, P = 0.920) and parasitic infections (0 vs. 6%, P = 0.382) on GI PCR (Table 2). There were no statistically significant differences in gender, race, travel history, sexual activity, HIV status, or rate of pathogen detection between patients with and without IBD.
CONCLUSION(S): Enteric infections were common in outpatients with and without IBD. IBD patients presented with more viral and multiple pathogens on GI PCR testing compared to non-IBD controls. Further studies are needed to investigate the impact of these different enteric pathogens on clinical management and disease burden. (Figure Presented)

INTRODUCTION: Patients with inflammatory bowel disease (IBD) frequently receive stool testing for exacerbations in gastrointestinal symptoms. Multiplex polymerase chain reaction-based gastrointestinal pathogen panels (GI PCR) offer significant benefits in sensitivity over conventional tests such as culture and ova and parasites exam. However, it is unclear how additional pathogen positive findings by GI PCR affect further clinical management. In this study we compared the downstream healthcare utilization of IBD patients who received GI PCR to conventional stool testing.
METHOD(S): We reviewed outpatients presenting to an academic medical center with an acute episode of diarrhea from September 2015 to February 2019 to identify patients with IBD who received stool testing with a FilmArray GI PCR or stool culture and ova and parasite exam (conventional testing). All patients received isolated PCR testing for Clostridium difficile. Each GI PCR patient was randomly matched with a conventional testing patient based on age, sex, and date of testing. Post-visit endoscopy, abdominal radiology, antibiotic therapy, and escalation in IBD medical therapy defined as an increase in the dose of a prior medication or prescription of a new medication were recorded. Long-term outcomes including emergency room (ER) visits, hospitalizations, and abdominal surgery were recorded as well. Ttest and Chi-square analysis were used to compare outcomes between groups.
RESULT(S): Among 1,104 patients receiving stool testing, we identified 120 outpatients with IBD, of whom 26 (22%) received conventional stool testing and 94 (78%) GI PCR testing. Of 26 patients with conventional testing, 1 (4%) had a pathogen identified on testing while 36 (38%) of 94 GI PCR patients had positive tests (Table 2). There were no significant differences in demographics, IBD characteristics, rates of C. difficile infection, and behavioral risk factors between groups (P > 0.05). GI PCR patients were less likely to receive any endoscopic exam in the 30-day period after their initial visit (20% vs. 42%, P = 0.021). There were no significant differences in exposure to radiology, antibiotics, escalation of IBD therapy, or long-term IBD outcomes (P > 0.05).
CONCLUSION(S): Testing with GI PCR was associated with lower rates of post-visit endoscopywith no differences in long-term outcomes in outpatients with IBD. This study suggests that in certain populations of patients, GI PCR testing has the potential to reduce downstream healthcare utilization andmanagement burden

Introduction: Tofacitinib is an oral, small molecule Janus kinase inhibitor for the treatment of ulcerative colitis (UC). Monitoring of liver enzymes, lipids, absolute neutrophil count (ANC), absolute lymphocyte count (ALC) and haemoglobin (Hg) is recommended in patients (pts) with UC treated with tofacitinib.1 Aims & Methods: We investigated the changes in laboratory parameters in pts with moderately to severely active UC treated with tofacitinib in OCTAVE Open, an ongoing Phase 3, open-label, long-term extension (OLE) study (NCT01470612; data as of Sep 2018, database not locked). Pts who had completed or demonstrated treatment failure in the OCTAVE Sustain maintenance study, or those who were non-responders after completing OCTAVE Induction 1 or 2, were eligible for inclusion in the OLE study. Pts who were in remission at the end of OCTAVE Sustain were assigned to tofacitinib 5 mg BID; all other pts were assigned to tofacitinib 10 mg BID in the OLE study. Changes from baseline values in the OLE study for liver enzymes, lipids, ANC, ALC and Hg at Month 36 were evaluated (observed data). The proportions of pts with laboratory values meeting protocol criteria for discontinuation (two sequential: aspartate aminotransferase [AST] or alanine aminotransferase [ALT] elevations >=3x upper limit of normal [ULN] with >=1 total bilirubin value >=2x ULN or signs or symptoms consistent with hepatic injury; AST or ALT elevations >=5x ULN; ANC < 750/ mm³; ALC < 500/mm³; or Hg < 8.0 g/dL or >30% decrease from baseline) were assessed. The proportions of pts with investigator-defined hyperlipidaemia treatment-emergent adverse events (TEAEs), and with a change in lipid-lowering agent (LLA), were also reported.
Result(s): Changes from OLE study baseline in liver enzymes, lipids, ANC, ALC and Hg at Month 36 in pts treated with tofacitinib 5 and 10 mg twice daily (BID) are presented in the Table. With regard to meeting protocol criteria for discontinuation, 2.9% and 1.0% of pts treated with tofacitinib 5 and 10 mg BID, respectively, met the criteria for liver enzyme elevations; 0.6% and 1.4% of pts treated with tofacitinib 5 and 10 mg BID, respectively, met the criteria for ALC; 0 and 0.1% of pts treated with tofacitinib 5 and 10 mg BID, respectively, met the criteria for ANC; and 0 and 1.4% of pts treated with tofacitinib 5 and 10 mg BID, respectively, met the criteria for Hg. Hyperlipidaemia TEAEs were experienced by 1.7% of pts treated with tofacitinib 5 mg BID and 1.2% of pts treated with tofacitinib 10 mg BID. Furthermore, 8.0% and 6.6% of pts treated with tofacitinib 5 and 10 mg BID, respectively, had a new LLA added, and 2.3% and 1.7% of pts treated with tofacitinib 5 and 10 mg BID, respectively, had their LLA dose increased.
Conclusion(s): No major changes from OLE study baseline were observed in the laboratory parameters recommended for monitoring in pts treated with tofacitinib up to Month 36. In addition, the proportions of pts meeting protocol criteria for discontinuation for liver enzymes, ANC, ALC or Hg, with hyperlipidaemia TEAEs or with a change in LLA, were evaluated and were low in both tofacitinib treatment groups. Due to the dose assignment in the OLE study, the pt populations in the treatment arms differ in terms of their baseline remission status. (Table Presented)

BACKGROUND & AIMS:There are few real-world data on the safety of vedolizumab for treatment of Crohn's disease (CD) or ulcerative colitis (UC). We quantified rates and identified factors significantly associated with infectious and non-infectious adverse events in clinical practice. METHODS:We performed a retrospective review of data from a multicenter consortium database (from May 2014 through June 2017). Infectious and non-infectious adverse events were defined as those requiring antibiotics, hospitalization, vedolizumab discontinuation, or resulting in death. Rates were quantified as proportions and events per 100 patient years of exposure (PYE) or follow up (PYF). We performed multivariable logistic regression analyses to identify factors significantly associated with events and reported as odds ratios (OR) with 95% CIs. RESULTS:Our analysis comprised 1087 patients (650 with CD and 437 with UC; 55% female; median age, 37 years) with 861 PYE and 955 PYF. Infections were observed in 68 patients (6.3%; 7.9 per 100 PYE, 7.1 per 100 PYF); gastrointestinal infections (n = 31, 2.4 per 100 PYE, 2.2 per 100 PYF) and respiratory infections (n = 14, 1.6 per 100 PYE, 1.5 per 100 PYF) were the most common. Arthralgias were the most common non-infectious adverse events (n = 31, 2.9%; 3.6 per 100 PYE). Two patients developed malignancies (squamous cell skin cancer and colorectal cancer; 0.23 per 100 PYE, 0.21 per 100 PYF). Active smoker status (OR, 3.39) and number of concomitant immunosuppressive agents (corticosteroids or immunomodulators; OR, 1.72 per agent) used were independently associated with infections. CONCLUSION:In a retrospective cohort study of patients with IBD, we found vedolizumab to be well tolerated with an overall favorable safety profile. Active smoking and concomitant use of immunosuppressive agents were independently associated with infections.

Background/UNASSIGNED:We quantified loss of response (LOR) to vedolizumab (VDZ) in clinical practice and assessed the effectiveness of VDZ dose intensification for managing LOR. Methods/UNASSIGNED:Retrospective review (May 2014-December 2016) of a prospectively maintained inflammatory bowel disease (IBD) registry. Kaplan-Meier estimates were used to determine rates of LOR to VDZ . Independent predictors of LOR were identified using univariate and multivariable Cox proportional hazard regression. Success of recapturing response (>50% reduction in symptoms from baseline) and remission (complete resolution of symptoms) after dose intensification was quantified. Results/UNASSIGNED:Cumulative rates for VDZ LOR were 20% at 6 months and 35% at 12 months, with slightly lower rates in Crohn's disease than in ulcerative colitis (6 months 15% vs 18% and 12 months 30% vs 39%, P = 0.03). On multivariable analysis, LOR to a tumor necrosis factor (TNF) antagonist before VDZ use was associated with an increased risk for LOR to VDZ [hazard ratio (HR) 1.93; 95% confidence interval (CI) 1.25-2.97] in all patients. For Crohn's disease patients specifically, higher baseline C-reactive protein concentration was associated with increased risk for LOR to VDZ (HR 1.01 per mg/dL increase, 95% CI 1.01-1.02). Shortening of VDZ infusion interval from 8 to every 4 or 6 weeks recaptured response in 49% and remission in 18% of patients. Conclusions/UNASSIGNED:LOR to a TNF antagonist before VDZ use and higher baseline C-reactive protein are important predictors of VDZ LOR. Treatment response can be recaptured in almost half of these patients with VDZ infusion interval shortening.

PURPOSE OF REVIEW/OBJECTIVE:Ileal pouch-anal anastomosis (IPAA) is the preferred surgical treatment for patients undergoing colectomy to maintain intestinal continuity. Earlier studies have suggested that outcomes are worse in elderly patients who underwent IPAA. However, more recent reports have shown that IPAA outcomes in the elderly are comparable to younger patients. We review the recent medical literature regarding outcomes and treatments for common complications in elderly IPAA patients. RECENT FINDINGS/RESULTS:Compared to younger patients, IPAA in the elderly is not associated with increased major surgical complications, but is associated with increased length of stay and re-admission rate for dehydration in older patients. Rates of fecal incontinence after IPAA were similar between younger and older patients. Sacral nerve stimulation has shown early promise as a possible treatment for fecal incontinence after IPAA, but more research is needed. Pouchitis is a common complication, and antibiotics remain first-line treatment options. Other treatment options include mesalamines, steroids, immunomodulators, and biologics. The efficacy of newer biologics such as vedolizumab and ustekinumab has been reported, but more data is needed. IPAA is safe in the elderly with high self-reported patient satisfaction. However, the elderly IPAA patient warrants special consideration regarding outcomes and management.