The committee will discuss supplemental new drug application (sNDA) 203214 supplement 18, XELJANZ (tofacitinib) tablets, submitted by Pfizer Inc., proposed for the treatment of adult patients with moderately to severely active ulcerative colitis who have demonstrated an
Irritable bowel syndrome (IBS) is a highly prevalent, chronic disorder that significantly reduces patients' quality of life. Advances in diagnostic testing and in therapeutic options for patients with IBS led to the development of this first-ever American College of Gastroenterology clinical guideline for the management of IBS using Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology. Twenty-five clinically important questions were assessed after a comprehensive literature search; 9 questions focused on diagnostic testing; 16 questions focused on therapeutic options. Consensus was obtained using a modified Delphi approach, and based on GRADE methodology, we endorse the following: We suggest that a positive diagnostic strategy as compared to a diagnostic strategy of exclusion be used to improve time to initiating appropriate therapy. We suggest that serologic testing be performed to rule out celiac disease in patients with IBS and diarrhea symptoms. We suggest that fecal calprotectin be checked in patients with suspected IBS and diarrhea symptoms to rule out inflammatory bowel disease. We recommend a limited trial of a low fermentable oligosaccharides, disacchardies, monosaccharides, polyols (FODMAP) diet in patients with IBS to improve global symptoms. We recommend the use of chloride channel activators and guanylate cyclase activators to treat global IBS with constipation symptoms. We recommend the use of rifaximin to treat global IBS with diarrhea symptoms. We suggest that gut-directed psychotherapy be used to treat global IBS symptoms. Additional statements and information regarding diagnostic strategies, specific drugs, doses, and duration of therapy can be found in the guideline.
Small intestinal bacterial overgrowth is defined as the presence of excessive numbers of bacteria in the small bowel, causing gastrointestinal symptoms. This guideline statement evaluates criteria for diagnosis, defines the optimal methods for diagnostic testing, and summarizes treatment options for small intestinal bacterial overgrowth. This guideline provides an evidence-based evaluation of the literature through the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) process. In instances where the available evidence was not appropriate for a formal GRADE recommendation, key concepts were developed using expert consensus.
BACKGROUND & AIMS
Patients with inflammatory bowel disease (IBD) are at risk for
certain malignancies. We aimed to determine the risk of melanoma and
nonmelanoma skin cancer (NMSC) in patients with IBD and how medications
affect these risks.
METHODS
We performed retrospective cohort and nested case-control studies
using administrative data from the LifeLink Health Plan Claims Database from
1997 to 2009. The cohort comprised 108,579 patients with IBD, and each was
matched to 4 individuals without IBD. The risk of melanoma and NMSC was
evaluated by incidence rate ratio (IRR) and by adjusted Cox proportional
hazard ratio (HR) modeling. In nested case-control studies, patients with
melanoma or NMSC were matched to 4 patients with IBD without melanoma or
NMSC. Conditional logistic regression was used to determine associations
between medications and both skin cancers.
RESULTS
In the cohort, IBD was associated with an increased incidence of
melanoma (IRR, 1.29; 95% confidence interval [CI],
1.09–1.53). Risk was greatest among individuals with Crohn’s
disease (IRR, 1.45; 95% CI, 1.13–1.85; adjusted HR, 1.28;
95% CI, 1.00–1.64). The incidence of NMSC also increased
among patients with IBD (IRR, 1.46; 95% CI, 1.40–1.53) and
was greatest among those with CD (IRR, 1.64; 95% CI,
1.54–1.74). In the nested case-control studies, therapy with
biologics increased the risk of melanoma (odds ratio [OR], 1.88; 95%
CI, 1.08–3.29). Patients who had been treated with thiopurines had
an increased risk of NMSC (OR, 1.85; 95% CI, 1.66–2.05).
CONCLUSIONS
Immunosuppression increases the risk of melanoma and NMSC among
patients with IBD. The risk of melanoma is increased by use of biologics,
and the risk of NMSC is increased by use of thiopurines. Patients with IBD
should be counseled and monitored for skin cancer.
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