Vedolizumab in Mild-to-Moderate Crohn's Disease Patients Naïve to Biological Therapy: A Multicentric Observational Study.

Background: In real-world experience, the number of patients using vedolizumab as first-line biological therapy was low. We aimed to evaluate the effectiveness and safety of vedolizumab in mild-to-moderate Crohn's disease (CD) biologic-naïve patients. Methods: We performed a retrospective multicentric cohort study with patients who had clinical activity scores (Harvey-Bradshaw Index [HBI]) measured at baseline and weeks 12, 26, 52, as well as at the last follow-up. Clinical response was defined as a reduction ≥3 in HBI, whereas clinical remission as HBI ≤4. Mucosal healing was defined as the complete absence of ulcers in control colonoscopies. Kaplan-Meier survival analysis was used to assess the persistence with vedolizumab. Results: From a total of 66 patients, 53% (35/66) reached clinical remission at week 12. This percentage increased to 69.7% (46/66) at week 26, and 78.8% (52/66) at week 52. Mucosal healing was achieved in 62.3% (33/53) of patients. Vedolizumab was well tolerated, and most adverse events were minor. During vedolizumab treatment, 3/66 patients underwent surgery. Conclusions: This study demonstrates the effectiveness and safety of vedolizumab as a first-line biological agent in patients with mild-to-moderate CD.

Effectiveness and Safety of Tofacitinib in the Management of Ulcerative Colitis: A Brazilian Observational Multicentric Study.

Background: Ulcerative colitis (UC) is a chronic inflammatory bowel disease which affects the colorectal mucosa with a relapsing-remitting pattern. The therapeutic options currently available for the medical management of UC include many options. Tofacitinib is an oral small molecule, Janus kinase (JAK) inhibitor, more selective for JAK1 and JAK3, which reduces the inflammatory process involved in the pathogenesis of UC. Methods: Retrospective observational multicentric study of patients with UC who used tofacitinib in any phase of their treatment. Clinical remission and response (according to Mayo score), mucosal healing, primary and secondary loss of response, discontinuation of the drug with possible causes, and the need for dose optimization or switching to biologicals, need for surgery and adverse events were evaluated. Results: From a total of 56 included patients, clinical remission was observed in 43.6% at week 12, 54.5% at week 26, 57.9% at week 52, and 40% at the last follow-up visit. Clinical response was observed in 71.4%, 81.8%, 89.5%, and 61.8% at the same time periods, respectively. Mucosal healing rates were 50% and 17.8% needed colectomy. Conclusions: Tofacitinib was effective in induction and maintenance of clinical response and remission rates, compatible to other international real-word studies and meta-analyses.

Mesenteric desmoid tumor after Roux-en-Y gastric bypass: a case report

We report the case of a 37-year-old woman investigated for left flank pain 1 year after bariatric surgery (Roux-en-Y gastric bypass). Abdominal computed tomography (CT) revealed a solid intra-abdominal lesion measuring 9.3 × 9.4 × 10.4 cm, compressing adjacent structures with no signs of invasion. Ileocolectomy with partial mesenteric resection was performed. A histopathological and immunohistochemical analysis confirmed the diagnosis of mesenteric desmoid tumor.(AU)

VEDOLIZUMAB IN THE MANAGEMENT OF INFLAMMATORY BOWEL DISEASES: A BRAZILIAN OBSERVATIONAL MULTICENTRIC STUDY.

BACKGROUND: There is scarce data regarding efficacy and safety of vedolizumab in inflammatory bowel diseases in Latin America. OBJECTIVE: To describe the first observational real-world experience with vedolizumab in Latin American inflammatory bowel diseases patients. METHODS: Retrospective observational multicentric study of patients with Crohn's disease (CD) and ulcerative colitis (UC) who used vedolizumab at any phase of their treatment. Clinical remission and response (according to Harvey-Bradshaw index for CD and Mayo score for UC), mucosal healing, need for surgery and adverse events were evaluated. RESULTS: A total of 90 patients were included (52 with CD and 38 with UC), the majority with previous exposure to anti-TNF agents (88.46% in CD and 76.31% in UC). In CD (as observed analysis) remission rates at weeks 12, 26 and 52 were 42.89% (21/49), 61.9% (26/42) and 46.15% (12/26), respectively. In UC, remission rates at weeks 12, 26 and 52 were 28.94% (11/38), 36.66% (11/30) and 41.17% (7/17). Mucosal healing rates were 36.11% in CD and 43.4% in UC. During the study period, 7/52 CD patients underwent major abdominal surgery and 4/38 UC patients needed colectomy. CONCLUSION: Vedolizumab was effective in induction and maintenance of clinical response and remission in CD and UC, with no new safety signs.

Vedolizumabe no manejo das doenças inflamatórias intestinais: um estudo multicentrico observacional brasileiro / Vedolizumab in the management of inflammatory bowel diseases: a brazilian observational multicentric study

ABSTRACT BACKGROUND: There is scarce data regarding efficacy and safety of vedolizumab in inflammatory bowel diseases in Latin America. OBJECTIVE: To describe the first observational real-world experience with vedolizumab in Latin American inflammatory bowel diseases patients. METHODS: Retrospective observational multicentric study of patients with Crohn's disease (CD) and ulcerative colitis (UC) who used vedolizumab at any phase of their treatment. Clinical remission and response (according to Harvey-Bradshaw index for CD and Mayo score for UC), mucosal healing, need for surgery and adverse events were evaluated. RESULTS: A total of 90 patients were included (52 with CD and 38 with UC), the majority with previous exposure to anti-TNF agents (88.46% in CD and 76.31% in UC). In CD (as observed analysis) remission rates at weeks 12, 26 and 52 were 42.89% (21/49), 61.9% (26/42) and 46.15% (12/26), respectively. In UC, remission rates at weeks 12, 26 and 52 were 28.94% (11/38), 36.66% (11/30) and 41.17% (7/17). Mucosal healing rates were 36.11% in CD and 43.4% in UC. During the study period, 7/52 CD patients underwent major abdominal surgery and 4/38 UC patients needed colectomy. CONCLUSION: Vedolizumab was effective in induction and maintenance of clinical response and remission in CD and UC, with no new safety signs.

RESUMO CONTEXTO: Há escassez de dados sobre a eficácia e segurança do vedolizumabe nas doenças inflamatórias intestinais na América Latina. OBJETIVO: Descrever a primeira experiência observacional de mundo real com vedolizumabe em pacientes latino-americanos com doenças inflamatórias intestinais. MÉTODOS: Estudo retrospectivo multicêntrico observacional de pacientes com doença de Crohn (DC) e retocolite ulcerativa inespecífica (RCUI) que utilizaram vedolizumabe em qualquer fase de seu tratamento. Foram avaliadas a remissão e resposta clínicas (de acordo com o índice de Harvey-Bradshaw para DC e escore de Mayo para RCUI), cicatrização da mucosa, necessidade de cirurgia e eventos adversos. RESULTADOS: Foram incluídos 90 pacientes (52 com DC e 38 com RCUI), a maioria com exposição prévia a agentes anti-TNF (88,46% na DC e 76,31% na RCUI). Na DC (em análise conforme observado), as taxas de remissão nas semanas 12, 26 e 52 foram 42,89% (21/49), 61,9% (26/42) e 46,15% (12/26), respectivamente. Na RCUI, as taxas de remissão nas semanas 12, 26 e 52 foram de 28,94% (11/38), 36,66% (11/30) e 41,17% (7/17). As taxas de cicatrização da mucosa foram 36,11% na DC e 43,4% na RCUI. Durante o período do estudo, 7/52 pacientes com DC foram submetidos a cirurgia abdominal maior e 4/38 pacientes com RCUI necessitaram de colectomia. CONCLUSÃO: O vedolizumabe foi eficaz na indução e manutenção da resposta e remissão clínicas em população refratária na DC e RCUI, com perfil de segurança favorável.

Treatment of posterior gastric wall gastrointestinal stromal tumor with gastric sleeve: a case report

Gastrointestinal stromal tumors (GISTs) are the most common non-epithelial tumors of the gastrointestinal tract. The most usual location is the stomach, followed by the small intestine, where it may cause digestive bleeding and anemia. Surgical resection of the tumor is the gold standard treatment, and definitive diagnosis is based on immunohistochemical analysis of the surgical specimen. We report the case of a 53-year-old man with gastric GIST presenting with endophytic and exophytic growth, located at the posterior wall of the stomach, in the antrum-body transitional zone, treated with gastric sleeve. (AU)