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1.
BMJ Open Gastroenterol ; 11(1)2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38719549

RESUMO

BACKGROUND AND OBJECTIVE: The influence of concomitant prednisolone on clinical outcomes and safety in infliximab-treated ulcerative colitis (UC) patients is unknown. DESIGN, SETTING, PARTICIPANTS AND OUTCOME MEASURES: A retrospective cohort study was performed, including 147 UC patients treated with infliximab at a tertiary inflammatory bowel disease (IBD) centre. Primary outcome was corticosteroid-free clinical remission (CFCR) at week 14 and week 52. Patients were grouped according to prednisolone tapering regimens: standard (≤5 mg/week), fast (>5 mg/week), direct discontinuation or no prednisolone. Patients intolerant to corticosteroids and patients stopping corticosteroids in preparation for surgery including colectomy during their initial admission were excluded. RESULTS: There was no overall association between prednisolone exposure or no exposure and CFCR at weeks 14 or 52 of infliximab. The proportion of patients with C reactive protein ≤5 mg/L was higher in the standard tapering at week 14 as compared with faster regimens or no prednisolone. In subgroup analyses, the standard tapering was associated with a higher rate of CFCR at week 14 compared with the fast-tapering regimen in patients receiving ≥40 mg prednisolone at initiation of infliximab (64.3% vs 26.3%, p=0.04) and among patients admitted with acute severe UC (66.6% vs 23.5%, p<0.05). Similar data were seen at week 52. Prednisolone did not affect infliximab trough levels but increased infection rates (10/77 vs 2/70, p=0.03), in particular C. difficile infection. CONCLUSION: In UC patients with limited disease burden, prednisolone did not affect effectiveness of infliximab. However, patients with increased disease burden seem to benefit from corticosteroid combination therapy.


Assuntos
Colite Ulcerativa , Fármacos Gastrointestinais , Infliximab , Prednisolona , Indução de Remissão , Humanos , Colite Ulcerativa/tratamento farmacológico , Infliximab/administração & dosagem , Infliximab/uso terapêutico , Estudos Retrospectivos , Prednisolona/administração & dosagem , Prednisolona/uso terapêutico , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Resultado do Tratamento , Indução de Remissão/métodos , Fármacos Gastrointestinais/administração & dosagem , Fármacos Gastrointestinais/uso terapêutico , Redução da Medicação/métodos , Anti-Inflamatórios/administração & dosagem , Anti-Inflamatórios/uso terapêutico , Anti-Inflamatórios/efeitos adversos , Proteína C-Reativa/análise , Proteína C-Reativa/metabolismo , Glucocorticoides/administração & dosagem , Glucocorticoides/uso terapêutico , Glucocorticoides/efeitos adversos , Quimioterapia Combinada
2.
Tunis Med ; 102(4): 181-188, 2024 Apr 05.
Artigo em Francês | MEDLINE | ID: mdl-38746955

RESUMO

INTRODUCTION: Treatment of complex perianal fistulas in Crohn's disease remains a challenge especially after the failure of Infliximab. AIM: Update on the different therapeutic alternatives for anal fistula in Crohn's disease after failure of Infliximab. METHODS: A research in the medical literature on PubMed and Google Scholar was carried out. We included cohort studies, reviews and randomized double-blinded therapeutic trials. Case reports and fundamental research studies have been excluded. RESULTS: Anti-TNF therapy, notably Infliximab remain the therapeutic option of choice. Since Infliximab efficacy has been estimated at 60%, with a significant loss-of response rate, new therapeutic strategies have been evaluated and may offer new opportunities for the management of anal fistulas: for example, Ustekinumab could be effective after failure of anti-TNF therapy, although further studies are required. Recent guidelines suggest that injection of mesenchymal stem cells is an effective and safe treatment for complex fistulas. Other surgical options have been proposed, such as endorectal advancement flap, fibrin glue injection, anal fistula plug and ligation of the intersphincteric fistula tract, but all with limited and debatable efficacy. Given the failure rate of all these options, new strategies are currently being evaluated. CONCLUSION: Anal fistulas in Crohn's disease are a real therapeutic challenge. New medical and surgical therapies are currently being evaluated, with promising results.


Assuntos
Doença de Crohn , Fármacos Gastrointestinais , Infliximab , Fístula Retal , Falha de Tratamento , Humanos , Doença de Crohn/complicações , Doença de Crohn/tratamento farmacológico , Fístula Retal/etiologia , Fístula Retal/tratamento farmacológico , Fístula Retal/terapia , Infliximab/uso terapêutico , Fármacos Gastrointestinais/uso terapêutico , Fármacos Gastrointestinais/administração & dosagem
3.
Hepatol Commun ; 8(6)2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38727685

RESUMO

BACKGROUND: The aim was to examine rifaximin plus lactulose efficacy in patients with cirrhosis at a risk of developing overt HE who were stratified by important baseline characteristics such as comorbid ascites or diabetes. METHODS: Pooled post hoc subgroup analysis of adults receiving rifaximin 550 mg twice daily plus lactulose or lactulose alone for 6 months in a phase 3 randomized, double-blind trial and a phase 4 open-label trial was conducted. RESULTS AND CONCLUSION: Rifaximin plus lactulose was more efficacious than lactulose alone for reducing the risk of overt HE recurrence and HE-related hospitalization in adults grouped by select baseline disease characteristics.


Assuntos
Quimioterapia Combinada , Fármacos Gastrointestinais , Encefalopatia Hepática , Lactulose , Recidiva , Rifaximina , Humanos , Rifaximina/uso terapêutico , Rifaximina/administração & dosagem , Lactulose/uso terapêutico , Lactulose/administração & dosagem , Masculino , Pessoa de Meia-Idade , Método Duplo-Cego , Feminino , Fármacos Gastrointestinais/uso terapêutico , Fármacos Gastrointestinais/administração & dosagem , Encefalopatia Hepática/tratamento farmacológico , Encefalopatia Hepática/prevenção & controle , Cirrose Hepática/complicações , Cirrose Hepática/tratamento farmacológico , Adulto , Prevenção Secundária/métodos , Idoso , Resultado do Tratamento
4.
Aliment Pharmacol Ther ; 59(11): 1312-1334, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38651771

RESUMO

BACKGROUND: The expanding options in advanced therapies for ulcerative colitis (UC) and Crohn's disease (CD) present challenges in treatment selection. Persistence analysis assesses drug durability in real-world settings, acting as a surrogate marker for medication efficacy and tolerance. Unlike traditional comparative studies, persistence analysis provides insights extending beyond the initial year of treatment. AIM: To provide real-world evidence on treatment effectiveness, tolerability and preferences of physicians and patients regarding various advanced therapies for IBD. METHODS: We conducted a systematic review of observational studies up to March 2023 assessing advanced therapies' persistence in UC and CD. Advanced therapies under examination included infliximab, adalimumab, vedolizumab, ustekinumab, golimumab, certolizumab and tofacitinib. We pooled the persistence of each agent and conducted a meta-analysis to compare the persistence of newer agents with traditional TNF inhibitors (TNFi)-specifically infliximab and adalimumab. RESULTS: Among 63 observational studies, vedolizumab had the highest 1-year persistence in UC (73.8%, 95% CI: 70.0%-77.6%) and ustekinumab in CD (77.5%, 95% CI: 72.9%-82.1%). Compared to TNFi, vedolizumab demonstrated increased persistence with a relative risk (RR) of 1.30 (95% CI: 1.19-1.41) for UC and 1.14 (95% CI: 1.09-1.20) for CD at 1 year, while ustekinumab demonstrated a RR of 1.15 (95% CI: 1.07-1.23) for CD at 1 year. Vedolizumab exhibited sustained increased persistence in UC over 2 years compared to TNFi (RR: 1.33, 95% CI 1.14-1.54). CONCLUSION: This meta-analysis highlights the superior persistence of ustekinumab and vedolizumab over TNFi, and offers valuable insights for clinicians navigating the challenging landscape of UC and CD therapeutic choices.


Assuntos
Anticorpos Monoclonais , Fármacos Gastrointestinais , Pirimidinas , Humanos , Fármacos Gastrointestinais/uso terapêutico , Ustekinumab/uso terapêutico , Doença de Crohn/tratamento farmacológico , Colite Ulcerativa/tratamento farmacológico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Anticorpos Monoclonais Humanizados/uso terapêutico , Resultado do Tratamento , Estudos Observacionais como Assunto , Infliximab/uso terapêutico , Piperidinas/uso terapêutico
9.
Surg Clin North Am ; 104(3): 657-671, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38677828

RESUMO

The past few decades have seen significant advancements in the medical management of both ulcerative colitis (UC) and Crohn's disease (CD). The previous dependence on steroids is no longer an acceptable strategy following the Food and Drug Administration approval for several new classes of medication. These medications include aminosalicylates, immunomodulators, biologics, and oral targeted small-molecule inhibitors. This article highlights several key trials and discusses modern treatment paradigms for both UC and CD based on disease severity.


Assuntos
Colite Ulcerativa , Humanos , Colite Ulcerativa/tratamento farmacológico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Doenças Inflamatórias Intestinais/terapia , Doença de Crohn/tratamento farmacológico , Agentes de Imunomodulação/uso terapêutico , Produtos Biológicos/uso terapêutico , Fatores Imunológicos/uso terapêutico , Fármacos Gastrointestinais/uso terapêutico
10.
Pharmacotherapy ; 44(4): 331-342, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38576238

RESUMO

BACKGROUND: Patients with Crohn's disease (CD) who lose response to biologics experience reduced quality of life (QoL) and costly hospitalizations. Precision-guided dosing (PGD) provides a comprehensive pharmacokinetic (PK) profile that allows for biologic dosing to be personalized. We analyzed the cost-effectiveness of infliximab (IFX) PGD relative to two other dose intensification strategies (DIS). METHODS: We developed a hybrid (Markov and decision tree) model of patients with CD who had a clinical response to IFX induction. The analysis had a US payer perspective, a base case time horizon of 5 years, and a 4-week cycle length. There were three IFX dosing comparators: PGD; dose intensification based on symptoms, inflammatory markers, and trough IFX concentration (DIS1); and dose intensification based on symptoms alone (DIS2). Patients that failed IFX initiated ustekinumab, followed by vedolizumab, and conventional therapy. Transition probabilities for IFX were estimated from real-world clinical PK data and interventional clinical trial patient-level data. All other transition probabilities were derived from published randomized clinical trials and cost-effectiveness analyses. Utility values were sourced from previous health technology assessments. Direct costs included biologic acquisition and infusion, surgeries and procedures, conventional therapy, and lab testing. The primary outcomes were incremental cost-effectiveness ratios (ICERs). The robustness of results was assessed via one-way sensitivity, scenario, and probabilistic sensitivity analyses (PSA). RESULTS: PGD was the cost-effective IFX dosing strategy with an ICER of 122,932 $ per quality-adjusted life year (QALY) relative to DIS1 and dominating DIS2. PGD had the lowest percentage (1.1%) of patients requiring a new biologic through 5 years (8.9% and 74.4% for DIS1 and DIS2, respectively). One-way sensitivity analysis demonstrated that the cost-effectiveness of PGD was most sensitive to the time between IFX doses. PSA demonstrated that joint parameter uncertainty had moderate impact on some results. CONCLUSIONS: PGD provides clinical and QoL benefits by maintaining remission and avoiding IFX failure; it is the most cost-effective under conservative assumptions.


Assuntos
Análise Custo-Benefício , Doença de Crohn , Fármacos Gastrointestinais , Infliximab , Humanos , Infliximab/administração & dosagem , Infliximab/economia , Infliximab/uso terapêutico , Doença de Crohn/tratamento farmacológico , Adulto , Fármacos Gastrointestinais/administração & dosagem , Fármacos Gastrointestinais/economia , Fármacos Gastrointestinais/uso terapêutico , Anos de Vida Ajustados por Qualidade de Vida , Árvores de Decisões , Cadeias de Markov , Relação Dose-Resposta a Droga , Qualidade de Vida , Medicina de Precisão
11.
PLoS One ; 19(4): e0298313, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38564601

RESUMO

AIMS: In patients with ulcerative colitis (UC), no biomarker is available to help the physician to choose the most suitable biotherapy. The primary objective of this pilot study was to assess the feasibility of identification of α4ß7- and TNF-expressing cells, to predict the response to vedolizumab using confocal laser endoscopy (CLE). METHODS: Patients with moderate-to-severe UC, naïve of biotherapy, received vedolizumab. Clinical evaluation was performed at each infusion. Endoscopic evaluation was performed before inclusion and at week 22. Fresh colonic biopsies were stained using FITC-labelled vedolizumab and Alexa fluor-labelled adalimumab and ex vivo dual-band CLE images were acquired. Blood samples were collected to measure trough concentrations of vedolizumab and to determine absolute counts of T and B cells subpopulations, NK cells and monocytes. RESULTS: Nineteen patients were enrolled in the study and received at least one dose of vedolizumab. Clinical remission and endoscopic improvement were observed in 58% of whom 5 patients (45%) had an endoscopic subscore of 0. In terms of clinical response and remission, endoscopic improvement and histologic response, FITC-conjugated vedolizumab staining tended to be higher in responder patients compared to non-responders at week 22. A threshold value of 6 positive FITC-vedolizumab staining areas detected by CLE seemed informative to discriminate the responders and non-responders. The results were similar in terms of clinical remission and endoscopic improvement with a sensitivity of 78% and a specificity of 85% (p = 0.05). Trough concentrations and blood immune cells were not associated with responses to vedolizumab. CONCLUSION: This pilot study demonstrate that dual-band CLE is feasible to detect α4ß7- and TNF-expressing cells. Positive α4ß7 staining seems to be associated with clinical and endoscopic remission in UC patients treated by anti-α4ß7-integrin, subject to validation by larger-scale studies. Clinical-trial.gov: NCT02878083.


Assuntos
Anticorpos Monoclonais Humanizados , Colite Ulcerativa , Humanos , Projetos Piloto , Fluoresceína-5-Isotiocianato , Biomarcadores , Endoscopia Gastrointestinal , Fármacos Gastrointestinais/uso terapêutico , Resultado do Tratamento , Indução de Remissão
12.
World J Gastroenterol ; 30(15): 2068-2080, 2024 Apr 21.
Artigo em Inglês | MEDLINE | ID: mdl-38681984

RESUMO

The treatment of patients with inflammatory bowel disease (IBD), especially those with severe or refractory disease, represents an important challenge for the clinical gastroenterologist. It seems to be no exaggeration to say that in these patients, not only the scientific background of the gastroenterologist is tested, but also the abundance of "gifts" that he should possess (insight, intuition, determination, ability to take initiative, etc.) for the successful outcome of the treatment. In daily clinical practice, depending on the severity of the attack, IBD is treated with one or a combination of two or more pharmaceutical agents. These combinations include not only the first-line drugs (e.g., mesalazine, corticosteroids, antibiotics, etc) but also second- and third-line drugs (immunosuppressants and biologic agents). It is a fact that despite the significant therapeutic advances there is still a significant percentage of patients who do not satisfactorily respond to the treatment applied. Therefore, a part of these patients are going to surgery. In recent years, several small-size clinical studies, reviews, and case reports have been published combining not only biological agents with other drugs (e.g., immunosuppressants or corticosteroids) but also the combination of two biological agents simultaneously, especially in severe cases. In our opinion, it is at least a strange (and largely unexplained) fact that we often use combinations of drugs in a given patient although studies comparing the simultaneous administration of two or more drugs with monotherapy are very few. As mentioned above, there is a timid tendency in the literature to combine two biological agents in severe cases unresponsive to the applied treatment or patients with severe extraintestinal manifestations. The appropriate dosage, the duration of the administration, the suitable timing for checking the clinical and laboratory outcome, as well as the treatment side-effects, should be the subject of intense clinical research shortly. In this editorial, we attempt to summarize the existing data regarding the already applied combination therapies and to humbly formulate thoughts and suggestions for the future application of the combination treatment of biological agents in a well-defined category of patients. We suggest that the application of biomarkers and artificial intelligence could help in establishing new forms of treatment using the available modern drugs in patients with IBD resistant to treatment.


Assuntos
Quimioterapia Combinada , Imunossupressores , Doenças Inflamatórias Intestinais , Humanos , Quimioterapia Combinada/métodos , Imunossupressores/uso terapêutico , Imunossupressores/administração & dosagem , Resultado do Tratamento , Doenças Inflamatórias Intestinais/tratamento farmacológico , Doenças Inflamatórias Intestinais/diagnóstico , Corticosteroides/uso terapêutico , Corticosteroides/administração & dosagem , Fármacos Gastrointestinais/uso terapêutico , Fármacos Gastrointestinais/administração & dosagem , Índice de Gravidade de Doença , Antibacterianos/uso terapêutico , Antibacterianos/administração & dosagem , Produtos Biológicos/uso terapêutico , Produtos Biológicos/administração & dosagem
13.
Eur J Gastroenterol Hepatol ; 36(6): 728-734, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38625825

RESUMO

BACKGROUND: With the increasing number of inflammatory bowel disease (IBD) patients, it is difficult to manage them within specialised IBD teams in academic medical centres: many are therefore treated in nonacademic IBD centres. It is unclear whether the time to introducing biologics is the same in both settings. AIM: We aimed to compare treatment approach with biologics in academic vs. nonacademic centres. METHODS: We analysed Slovenian national IBD registry data (UR-CARE Registry, supported by the European Crohn's and Colitis Organisation), which included 2 academic (2319 patients) and 4 nonacademic IBD (429 patients) centres. RESULTS: The disease phenotype was similar in both settings. In total, 1687 patients received 2782 treatment episodes with biologics. We observed no differences in treatment episodes with TNF-alpha inhibitors (60% vs. 61%), vedolizumab (24% vs. 23%), or ustekinumab (17% vs. 16%) in academic compared to nonacademic centres ( P  = 0.949). However, TNF inhibitors were less often the first biologic in academic centres (TNF inhibitors: 67.5% vs. 74.0%, vedolizumab: 20.3% vs. 17.9%, ustekinumab: 12.1% vs. 8.1%; P = 0.0096). Consequently, more patients received ustekinumab (29.8% vs. 18.3%) and vedolizumab (17.4% vs. 13.5%) and fewer TNF inhibitors (52.7% vs. 68.2%) for Crohn's disease in academic compared to nonacademic centres, with no such differences for ulcerative colitis. The time to initiation of the first biologic from diagnosis was short and similar in both settings (11.3 vs. 10.4 months, P  = 0.2). CONCLUSION: In this nationwide registry analysis, we observed that biological treatment choice was similar in academic and nonacademic settings. These findings support the decentralisation of IBD care.


Assuntos
Centros Médicos Acadêmicos , Anticorpos Monoclonais Humanizados , Sistema de Registros , Humanos , Feminino , Masculino , Adulto , Pessoa de Meia-Idade , Eslovênia/epidemiologia , Anticorpos Monoclonais Humanizados/uso terapêutico , Ustekinumab/uso terapêutico , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/terapia , Produtos Biológicos/uso terapêutico , Doença de Crohn/tratamento farmacológico , Doença de Crohn/terapia , Doenças Inflamatórias Intestinais/tratamento farmacológico , Doenças Inflamatórias Intestinais/terapia , Fatores de Tempo , Padrões de Prática Médica/estatística & dados numéricos , Resultado do Tratamento , Fármacos Gastrointestinais/uso terapêutico , Inibidores do Fator de Necrose Tumoral/uso terapêutico
14.
J Dig Dis ; 25(2): 91-99, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38599667

RESUMO

OBJECTIVE: We aimed to investigate whether vedolizumab (VDZ) levels were associated with inflammatory markers or clinical or endoscopic scoring in inflammatory bowel disease (IBD). METHODS: Besides demographic data, clinical scoring, endoscopic data, and laboratory markers of IBD patients treated with VDZ from 2015 to 2020 who had trough levels drawn on maintenance therapy were collected at baseline and at follow-up (after at least 8 weeks on VDZ therapy or after change in dose frequency). Low drug levels were defined as VDZ trough <20 µg/mL. RESULTS: We identified 89 patients with a mean age of 42.9 years. Of the 90 total trough levels drawn, 61.1% were low. Among patients on every 8 week (Q8 week) VDZ dosing, 81.5% had low troughs. After increasing dosing frequency to Q4 weeks, all patients showed improvement in VDZ levels, but 30.6% remained <20 µg/mL. Higher VDZ levels on Q8 week dosing were associated with higher albumin levels (P = 0.01). While higher VDZ levels on Q4 week dosing were associated with higher albumin (P = 0.02), lower erythrocyte sedimentation rate (P = 0.04) and higher likelihood of having mild disease or endoscopic remission (P = 0.01). No significant association was found between VDZ levels and clinical scoring, body mass index, hemoglobin, vitamin D or platelet levels on either Q8 or Q4 week dosing. CONCLUSIONS: Higher VDZ troughs were associated with higher albumin, mild endoscopic disease or endoscopic remission. Patients who continue to have low VDZ troughs despite Q4 week dosing may require a change in therapy.


Assuntos
Anticorpos Monoclonais Humanizados , Colite Ulcerativa , Doenças Inflamatórias Intestinais , Humanos , Adulto , Monitoramento de Medicamentos , Fármacos Gastrointestinais/uso terapêutico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Estudos Retrospectivos , Albuminas/uso terapêutico , Resultado do Tratamento
15.
Ther Drug Monit ; 46(3): 291-308, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38648666

RESUMO

BACKGROUND: Infliximab, an anti-tumor necrosis factor monoclonal antibody, has revolutionized the pharmacological management of immune-mediated inflammatory diseases (IMIDs). This position statement critically reviews and examines existing data on therapeutic drug monitoring (TDM) of infliximab in patients with IMIDs. It provides a practical guide on implementing TDM in current clinical practices and outlines priority areas for future research. METHODS: The endorsing TDM of Biologics and Pharmacometrics Committees of the International Association of TDM and Clinical Toxicology collaborated to create this position statement. RESULTS: Accumulating data support the evidence for TDM of infliximab in the treatment of inflammatory bowel diseases, with limited investigation in other IMIDs. A universal approach to TDM may not fully realize the benefits of improving therapeutic outcomes. Patients at risk for increased infliximab clearance, particularly with a proactive strategy, stand to gain the most from TDM. Personalized exposure targets based on therapeutic goals, patient phenotype, and infliximab administration route are recommended. Rapid assays and home sampling strategies offer flexibility for point-of-care TDM. Ongoing studies on model-informed precision dosing in inflammatory bowel disease will help assess the additional value of precision dosing software tools. Patient education and empowerment, and electronic health record-integrated TDM solutions will facilitate routine TDM implementation. Although optimization of therapeutic effectiveness is a primary focus, the cost-reducing potential of TDM also merits consideration. CONCLUSIONS: Successful implementation of TDM for infliximab necessitates interdisciplinary collaboration among clinicians, hospital pharmacists, and (quantitative) clinical pharmacologists to ensure an efficient research trajectory.


Assuntos
Monitoramento de Medicamentos , Doenças Inflamatórias Intestinais , Infliximab , Infliximab/uso terapêutico , Infliximab/farmacocinética , Humanos , Monitoramento de Medicamentos/métodos , Doenças Inflamatórias Intestinais/tratamento farmacológico , Fármacos Gastrointestinais/uso terapêutico , Fármacos Gastrointestinais/farmacocinética
16.
Curr Med Res Opin ; 40(5): 877-885, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38586979

RESUMO

OBJECTIVE: To compare real-world treatment persistence, dose escalation, rates of opportunistic or serious infections, and healthcare costs in patients with Crohn's disease (CD) receiving vedolizumab (VDZ) vs ustekinumab (UST) in the United States. METHODS: A retrospective observational study in adults with CD initiated on VDZ or UST on/after 26 September 2016, was performed using the IBM Truven Health MarketScan databases (1 January 2009-30 September 2018). Rates of treatment persistence, dose escalation, opportunistic or serious infection-related encounters, and healthcare costs per patient per month (PPPM) were evaluated. Entropy balancing was used to balance patient characteristics between cohorts. Event rates were assessed using weighted Kaplan-Meier analyses and compared between cohorts using log-rank tests. Healthcare costs were compared between cohorts using weighted 2-part models. RESULTS: 589 VDZ and 599 UST patients were included (172 [29.2%] and 117 [19.5%] were bio-naïve, respectively). After weighting, baseline characteristics were comparable between cohorts. No significant difference in rates of treatment persistence (12-month: VDZ, 76.5%; UST, 82.1%; p = .17), dose escalation (12-month: VDZ, 29.3%; UST, 32.7%; p = .97), or opportunistic or serious infection-related encounters were observed between VDZ and UST. Total mean healthcare costs were significantly lower for patients treated with VDZ vs UST (mean cost difference = -$5051 PPPM; p < .01). Findings were consistent in bio-naïve patients. CONCLUSIONS: In this real-world study, similar treatment persistence, dose escalation, and rates of opportunistic or serious infections were observed with VDZ- and UST-treated patients with CD. However, VDZ was associated with a significantly lower cost outlay for healthcare systems.


Crohn's disease (CD) causes inflammation in the digestive system. Vedolizumab (VDZ) and ustekinumab (UST) are therapies for patients with CD. Little is known about the clinical outcomes and healthcare costs of VDZ versus UST in the real world in the United States. We used health claims data and found that VDZ and UST had comparable real-world clinical outcomes. After 12 months of treatment, the proportions of patients with CD who stayed on treatment and those who needed to increase therapy dose were similar with VDZ and UST. The rate of infection was also similar between the two groups of patients. However, the monthly healthcare costs were $5051 less for patients treated with VDZ than with UST. This was mainly due to the lower cost of VDZ, which was almost half of that of UST. The lower treatment costs with VDZ may provide substantial savings for the healthcare system and patients specifically. Future cost-effectiveness studies on VDZ and UST are needed to aid treatment selection for patients with CD.


Assuntos
Anticorpos Monoclonais Humanizados , Doença de Crohn , Custos de Cuidados de Saúde , Ustekinumab , Humanos , Doença de Crohn/tratamento farmacológico , Doença de Crohn/economia , Feminino , Masculino , Anticorpos Monoclonais Humanizados/economia , Anticorpos Monoclonais Humanizados/uso terapêutico , Anticorpos Monoclonais Humanizados/administração & dosagem , Adulto , Ustekinumab/uso terapêutico , Ustekinumab/economia , Ustekinumab/administração & dosagem , Estados Unidos , Custos de Cuidados de Saúde/estatística & dados numéricos , Estudos Retrospectivos , Pessoa de Meia-Idade , Resultado do Tratamento , Fármacos Gastrointestinais/economia , Fármacos Gastrointestinais/uso terapêutico , Fármacos Gastrointestinais/administração & dosagem , Adulto Jovem
18.
Eur J Gastroenterol Hepatol ; 36(6): 704-711, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38526945

RESUMO

Vedolizumab is a first-line treatment option for ulcerative colitis. There are differences in incidence of ulcerative colitis between males and females, but whether sex affects treatment outcomes is less clear. We examined sex-based differences in patients with ulcerative colitis initiated on vedolizumab from two major randomized controlled trials (RCTs). We conducted a post-hoc analysis on participants with ulcerative colitis from the VARSITY and GEMINI-1 RCTs who received vedolizumab. Outcomes of interest were rates of clinical improvement, clinical remission, and endoscopic improvement at weeks 6, 14, and 52 in male and female participants, as were differences in concentrations of trough vedolizumab and C-reactive protein; 1009 persons in GEMINI-1 and VARSITY trials were included. Male and female patients had similar disease characteristics aside from males being more likely to have Mayo 3 grade endoscopic severity at baseline (62.8 vs. 48.9%, P  < 0.001). At week 6, females were more likely to have endoscopic improvement (47.4 vs. 35.2%, P  = 0.001) and increased vedolizumab trough levels [34.0 (23.0-44.5) vs. 28.9 (19.0-34.6), P  < 0.001]. The probability of achieving clinical remission (28.9 vs. 34.5%, P  = 0.057) or endoscopic improvement (35.5 vs. 39.3%, P  = 0.212) at week 52 was not different between males and females. Females with ulcerative colitis treated with vedolizumab appear more likely to achieve early endoscopic improvement than males, though longer-term outcomes demonstrated no difference. Further studies are required to better understand mechanisms through which sex or sex-associated factors could influence response to therapy in ulcerative colitis.


Assuntos
Anticorpos Monoclonais Humanizados , Colite Ulcerativa , Fármacos Gastrointestinais , Indução de Remissão , Humanos , Colite Ulcerativa/tratamento farmacológico , Colite Ulcerativa/sangue , Feminino , Masculino , Anticorpos Monoclonais Humanizados/uso terapêutico , Fatores Sexuais , Adulto , Fármacos Gastrointestinais/uso terapêutico , Resultado do Tratamento , Pessoa de Meia-Idade , Proteína C-Reativa/metabolismo , Proteína C-Reativa/análise , Índice de Gravidade de Doença , Ensaios Clínicos Controlados Aleatórios como Assunto
19.
Paediatr Drugs ; 26(3): 331-346, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38507036

RESUMO

BACKGROUND: Therapeutic drug monitoring (TDM) of infliximab has been shown to be a effective strategy for inflammatory bowel disease (IBD). Population pharmacokinetic (PopPK) modeling can predict trough concentrations for individualized dosing. OBJECTIVE: The aim of this study was to develop a PopPK model of infliximab in a paediatric population with IBD, assessing the effect of single nucleotide polymorphisms (SNPs) and other biomarkers on infliximab clearance. METHODS: This observational and ambispective single-centre study was conducted in paediatric patients with IBD treated with infliximab between July 2016 and July 2022 in the Paediatric Gastroenterology Service of the Hospital Universitari Vall d'Hebron (HUVH) (Spain). Demographic, clinical, and analytical variables were collected. Twenty SNPs potentially associated with variations in the response to infliximab plasma concentrations were analysed. infliximab serum concentrations and antibodies to infliximab (ATI) were determined by ELISA. PopPK modelling was performed using nonlinear mixed-effects analysis (NONMEM). RESULTS: Thirty patients (21 males) were included. The median age (range) at the start of infliximab treatment was 13 years (16 months to 16 years). A total of 190 samples were obtained for model development (49 [25.8%] during the induction phase). The pharmacokinetics (PK) of infliximab were described using a two-compartment model. Weight, erythrocyte sedimentation rate (ESR), faecal calprotectin (FC), and the SNP rs1048610 (ADAM17) showed statistical significance for clearance (CL), and albumin for inter-compartmental clearance (Q). Estimates of CL1 (genotype 1-AA), CL2 (genotype 2-AG), CL3 (genotype 3-GG), Q, Vc, and Vp (central and peripheral distribution volumes) were 0.0066 L/h/46.4 kg, 0.0055 L/h/46.4 kg, 0.0081 L/h/46.4 kg, 0.0029 L/h/46.4 kg, 0.6750 L/46.4 kg, and 1.19 L/46.4 kg, respectively. The interindividual variability (IIV) estimates for clearance, Vc, and Vp were 19.33, 16.42, and 36.02%, respectively. CONCLUSIONS: A popPK model utilising weight, albumin, FC, ESR, and the SNP rs1048610 accurately predicted infliximab trough concentrations in children with IBD.


Assuntos
Biomarcadores , Monitoramento de Medicamentos , Doenças Inflamatórias Intestinais , Infliximab , Polimorfismo de Nucleotídeo Único , Humanos , Infliximab/farmacocinética , Infliximab/uso terapêutico , Criança , Masculino , Adolescente , Feminino , Pré-Escolar , Doenças Inflamatórias Intestinais/tratamento farmacológico , Doenças Inflamatórias Intestinais/genética , Biomarcadores/sangue , Monitoramento de Medicamentos/métodos , Lactente , Fármacos Gastrointestinais/farmacocinética , Fármacos Gastrointestinais/uso terapêutico , Modelos Biológicos , Espanha
20.
Nutr Clin Pract ; 39(3): 634-640, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38491966

RESUMO

BACKGROUND: Chronic hepatic complications are common in patients with short bowel syndrome-associated intestinal failure (SBS-IF). Teduglutide, a glucagon-like peptide-2 analogue, demonstrated efficacy in reducing parenteral nutrition and/or intravenous fluid dependence among patients with SBS-IF in phase 3 clinical studies. METHODS: This was a post hoc analysis of pooled data from two separate randomized, double-blind, placebo-controlled, multinational phase 3 clinical studies. Adult patients with SBS-IF with parenteral nutrition and/or intravenous fluid dependence without liver disease at baseline were randomized to treatment with the glucagon-like peptide-2 analogue teduglutide (0.05 or 0.10 mg/kg/day) or placebo subcutaneously once daily for 24 weeks. Mixed-effects models assessed the baseline predictors of change in liver chemistries. RESULTS: Between baseline and week 24, teduglutide treatment (n = 109) was associated with least squares mean reductions in aspartate aminotransferase (-7.51 IU/L; P = 0.014), alanine aminotransferase (-12.15 IU/L; P = 0.002), and bilirubin (-5.03 µmol/L [-0.057 mg/dl]; P < 0.001) compared with that of the placebo (n = 59). These values were independent of reductions in parenteral nutrition and/or intravenous fluid dependence. CONCLUSION: Teduglutide treatment was associated with reductions in liver chemistries by week 24, which is beneficial for patients with SBS-IF beyond improvements in parenteral nutrition and/or intravenous fluid dependence. Future studies should examine how long-term teduglutide might mitigate the risk of liver disease in patients with SBS-IF.


Assuntos
Fármacos Gastrointestinais , Fígado , Peptídeos , Síndrome do Intestino Curto , Humanos , Síndrome do Intestino Curto/complicações , Síndrome do Intestino Curto/tratamento farmacológico , Masculino , Feminino , Pessoa de Meia-Idade , Peptídeos/uso terapêutico , Método Duplo-Cego , Adulto , Fígado/efeitos dos fármacos , Fígado/metabolismo , Fármacos Gastrointestinais/uso terapêutico , Fármacos Gastrointestinais/farmacologia , Aspartato Aminotransferases/sangue , Nutrição Parenteral/métodos , Alanina Transaminase/sangue , Idoso , Bilirrubina/sangue , Insuficiência Intestinal/tratamento farmacológico , Resultado do Tratamento , Hepatopatias
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