scholarly journals Long-term, Real-life, Observational Study in Treating Outpatient Ulcerative Colitis with Golimumab

2021 ◽  
Author(s):  
Antonio Tursi ◽  
Giammarco Mocci ◽  
Walter Elisei ◽  
Leonardo Allegretta ◽  
Raffaele Colucci ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Response ◽  
Clinical Remission ◽  
Real Life ◽  
Mucosal Healing ◽  
Term Treatment ◽  
Short Term Treatment ◽  
Mayo Score

Background and Aims: Several studies have found Golimumab (GOL) effective and safe in the short-term treatment of ulcerative colitis (UC), but few long-term data are currently available from real world. Our aim was to assess the long-term real-life efficacy and safety of GOL in managing UC outpatients in Italy. Methods: A retrospective multicenter study assessing consecutive UC outpatients treated with GOL for at least 3-month of follow-up was made. Primary endpoints were the induction and maintenance of remission in UC, defined as Mayo score ≤2. Several secondary endpoints, including clinical response, colectomy rate, steroid free remission and mucosal healing, were also assessed during the follow-up. Results: One hundred and seventy-eight patients were enrolled and followed up for a median (IQR) time of 9 (3-18) months (mean time follow-up: 33.1±13 months). Clinical remission was achieved in 57 (32.1%) patients: these patients continued with GOL, but only 6 patients (3.4%) were still under clinical remission with GOL at the 42nd month of follow-up. Clinical response occurred in 64 (36.4%) patients; colectomy was performed in 8 (7.8%) patients, all of them having primary failure. Steroid-free remission occurred in 23 (12.9%) patients, and mucosal healing was achieved in 29/89 (32.6%) patients. Adverse events occurred in 14 (7.9%) patients. Conclusions: Golimumab does not seem able to maintain long-term remission in UC in real life. The safety profile was good.

scholarly journals Sustained Clinical Efficacy and Mucosal Healing of Thiopurine Maintenance Treatment in Ulcerative Colitis: A Real-Life Study

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Daniela Pugliese ◽  
Annalisa Aratari ◽  
Stefano Festa ◽  
Pietro Manuel Ferraro ◽  
Rita Monterubbianesi ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Maintenance Therapy ◽  
Clinical Remission ◽  
Real Life ◽  
Mucosal Healing ◽  
Cumulative Probability ◽  
Term Outcome ◽  
Long Term Outcome

Background and Aims. Thiopurines are commonly used for treating ulcerative colitis (UC), despite the fact that controlled evidence supporting their efficacy is limited. The aim of this study was to evaluate the long-term outcome of thiopurines as maintenance therapy in a large cohort of UC patients. Methods. All UC patients receiving thiopurine monotherapy at three tertiary IBD centers from 1995 to 2015 were identified. The primary endpoint was steroid-free clinical remission. Secondary endpoints were mucosal healing (MH), defined as Mayo endoscopic subscore 0, long-term safety, and predictors of sustained clinical remission. Results. We identified 192 patients, contributing a total of 747 person-years of follow-up (median follow-up 36 months, range 1–210 months). Steroid dependency was the most common indication for thiopurine treatment (58%). Steroid-free remission occurred in 45.3% of patients; 36.3% stopped thiopurines because of treatment failure and 18.2% for adverse events or intolerance. The cumulative probability of maintaining steroid-free remission while on thiopurine treatment was 87%, 76%, 67.6%, and 53.4% at 12, 24, 36, and 60 months, respectively. MH occurred in 57.9% of patients after a median of 18 months (range 5–96). No independent predictors of sustained clinical remission could be identified. Conclusions. Thiopurines represent an effective and safe long-term maintenance therapy for UC patients.

scholarly journals OP26 The first real-life multicentre prospective validation study of the electronic chromoendoscopy score (Paddington International Virtual ChromoendoScopy ScOre) and its outcome in ulcerative colitis

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S023-S024 ◽  
Author(s):  
M Iacucci ◽  
S C Smith ◽  
A Bazarova ◽  
U N Shivaji ◽  
P Bhandari ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Validation Study ◽  
Real Life ◽  
Mucosal Healing ◽  
Vascular Changes ◽  
Important Goal ◽  
Kaplan Meier ◽  
Virtual Chromoendoscopy

Abstract Background Mucosal healing is an important goal in the treatment of ulcerative colitis (UC). The newly published PICaSSO score characterises subtle mucosal and vascular changes and defines mucosal healing. We aimed to validate in real-life the PICaSSO score and assess its ability to predict relapse. Methods Patients with UC were prospectively recruited from 11 international centres. Participating endoscopists experienced in IBD received training on PICaSSO before starting the study. The rectum and sigmoid were examined using iScan 1,2 and 3 (Pentax, Japan) and inflammatory activity was assessed using UCEIS and PICaSSO. Biopsies were taken for the histological assessment using Robarts Histological Index (RHI) and Nancy. Follow-up was obtained at 12 months. Results A total of 278 patients were recruited (Table 1). The diagnostic performance in predicting histologic healing is shown in Table 2. When using PICaSSO score of ≤3 for mucosal and vascular architecture the AUROC to predict healing by RHI is 0.79 (95% CI 0.74–0.85) and 0.73 (95% CI 0.68–0.80) respectively and when using the Nancy score the AUROC is 0.78 (95% CI 0.72–0.84) and 0.77 (0.71–0.84). A total PICaSSO score of ≤8 and UCEIS score of ≤1 predicts remission at 12 months with an AUROC of 0.73 (0.65–0.80) and 0.71 (0.64–0.79). A Kaplan–Meier curve shows a favourable survival probability without relapse with a PICASSO score of ≤8 (Figure 1). Conclusion This real-life validation study shows the PICaSSO score can predict accurately histological healing and long-term remission and can be a useful tool in the management of UC.

scholarly journals P663 Efficacy of tofacitinib in patients with ulcerative colitis after previous ineffective biological therapies

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S545-S546
Author(s):  
M Rutka ◽  
K Farkas ◽  
D Pigniczki ◽  
K Szántó ◽  
B Anita ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Response ◽  
Induction Therapy ◽  
Dose Escalation ◽  
Real Life ◽  
Janus Kinase ◽  
Inadequate Response ◽  
Mayo Score ◽  
Number Of Patients

Abstract Background Tofacitinib (TFC) is an oral, small-molecule Janus kinase inhibitor, which was recently approved for moderate to severe ulcerative colitis (UC). The aim of the current real-life study was to determine efficacy of TFC induction therapy regarding the clinical response and remission in patients with active UC. We evaluated short-term efficacy data in a Hungarian cohort with prior exposure to other biological agents such as anti-TNF drugs and vedolizumab. Methods In this single-centre retrospective study, patients with TFC introduction were included. Since January 2019, a total of 16 patients received an oral TFC induction therapy in a dose of 10 mg twice daily for 8 weeks. Endoscopic activity was evaluated by endoscopic Mayo (eMayo) score before the introduction of TFC and in case of an inadequate therapeutic response to the 5-mg-therapy to confirm therapeutic decision-making. Based on the evaluation of clinical symptoms and laboratory parameters, we either kept the dosage or reduced the dose to 5 mg according to local regulations. We also collected data from the 16. and 24. weeks of the therapy. Primary endpoints were a clinical response (as a reduction in partial Mayo Score [pMayo] by minimum 3 points) or remission (as a Mayo score of the maximum of 2 points and without blood in stool) at week 8. Results Sixteen patients had received the induction therapy (mean age: 36 years, 7 males and 9 females) in our centre. After 8 weeks, 12 (75%) patients responded to the TFC induction therapy and 6 (37.5%) of them were in remission. Four patients were primary non-responders (25%). Corticosteroid therapy (18 ± 7 mg) was required during the induction in 4 responder cases, which could be stepped down by week 8. As a continuous maintenance therapy, 4 patients have already reached the 16th week and 8 have completed the 24th week. By the end of the follow-up, 12 patients responded and 10 was in remission. During the observation period, 3 patients had to remain on 10 mg TFC dose, 6 patients required dose escalation from 5 mg to 10 mg and 5 mg was sufficient in case of only 3 patients after the introduction. Endoscopic activity showed a moderate decrease from 2.5 ± 0.5 eMayo score to 2 ± 1 (n = 7) until week 16. In respect the responder patients, CRP levels decreased from the mean of 7.23 to 5.02. No serious side-effects were observed during the follow-up. Conclusion After the 8-week TFC induction therapy, the response rate was high and only every fourth patients were non-responder. A low number of patients had adequate reactions to the 5 mg-therapy after the introduction, but TFC is effective with dose-escalation in respect of clinical response and remission in patients with UC, who have had an inadequate response to previous biological therapy.

scholarly journals P668 Real-life comparison of different anti-TNF biologic therapies for ulcerative colitis treatment: A retrospective cohort study

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S548-S549
Author(s):  
B Barberio ◽  
F Zingone ◽  
R D’Incà ◽  
C Marinelli ◽  
M C Maccarone ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Response ◽  
Clinical Remission ◽  
Drug Exposure ◽  
Real Life ◽  
Intention To Treat ◽  
Tnf Α ◽  
Ulcerative Colitis Treatment ◽  
Similar Good

Abstract Background Currently, ulcerative colitis (UC) can be treated with different anti-Tumor Necrosis Factor (TNF) drugs, which selection is mainly based on physician’s perspective. Indeed, head-to-head comparison studies evaluating the effectiveness and tolerability of anti-TNF drugs are lacking. The aim of this study was to compare the effectiveness and tolerability of anti-TNF-α drugs used in clinical practice in a cohort of patients with moderate to severe UC. Methods Retrospectively, 122 UC patients treated with Infliximab (IFX) Originator and Biosimilar, Adalimumab (ADA) and Golimumab (GOL) were included. We performed an intention to treat analysis to evaluate the clinical response, clinical remission, steroid-free clinical remission and endoscopy response according to the different time-points of the follow-up (ie. after induction, at 30 and 52 weeks). Baseline and post-induction predictor factors of these outcomes were evaluated using multivariate logistic regressions models. Data were analyzed using STATA11 software. Results Overall clinical response was 79.5% after induction, 79.5% at 30 weeks, 75.4% at 52 weeks, while the overall steroid-free clinical remission was 42.6%, 45.1%, 55.7%, respectively. After induction, a higher rate of treatment failure was observed in GOL group. Moreover, at the end of follow-up, lower rates of steroid-free clinical remission and clinical response were obtained by GOL (38.7% and 54.8% with p = 0.006 and p = 0.003, respectively). At week 52, endoscopic response was achieved by 46.5% of the population (IFX Originator: 46.7%; IFX Biosimilar: 40%; ADA: 51.6%; GOL: 22.6%; p = 0.003). Conclusion Among the different anti-TNF treatment, moderate-to-severe UC seems to respond better to IFX and ADA, whereas GOL seems to be less effective, despite a similar good safety profile. Current possibility of optimising also GOL will clarify whether these discrepancies are due to reduced drug exposure to GOL.

scholarly journals MODERATE TO SEVERE ENDOSCOPIC INFLAMMATION IS FREQUENT AFTER ACHIEVING CLINICAL REMISSION IN PEDIATRIC ULCERATIVE COLITIS

2021 ◽  
Vol 27 (Supplement_1) ◽  
pp. S13-S13
Author(s):  
Chen Sarbagili-Shabat ◽  
Dror Weiner ◽  
Joram Wardi ◽  
Lee Abramas ◽  
Michal Yaakov ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Remission ◽  
Residual Disease ◽  
Activity Index ◽  
Final Analysis ◽  
Mucosal Healing ◽  
Sustained Remission ◽  
High Relapse Rate ◽  
Mayo Score

Abstract Background Pediatric ulcerative colitis (UC) is characterized by low sustained remission rates and frequent extension of disease even if clinical remission is obtained with therapy. Moderate to severe endoscopic activity is a risk factor for relapse while evidence regarding early mucosal healing or persistence of inflammation after remission in children is not available. Our aim was to evaluate if persistence of significant inflammation is common and could explain the high relapse rate in pediatric UC. Methods Pediatric UC patients with clinical remission, defined as pediatric UC activity index (PUCAI) scores < 10, were prospectively assessed for mucosal healing by endoscopy 3–5 months after remission was documented. Mayo score was assessed for each segment by a blinded adult gastroenterologist using central reading. Symptomatic patients prior to sigmoidoscopy were excluded Sustained remission was assessed retrospectively at 18 months follow-up. Results Forty-six children were enrolled, 28 children in continuous clinical remission at time of sigmoidoscopy were included in the final analysis. Mayo 0 was present in 12/28 (42.86%), Mayo 1 in 2/28 (7.1%) and Mayo 2–3 in 14/28 (50.0%) endoscopies. Among 23/28 patients with follow-up through 18 months, remission was sustained in 2/11 (18.18%) of patients with Mayo 2 and 3 versus 6/12 (50.0%) with Mayo score 0–1. Conclusion Over 50% of children assessed for mucosal healing 3–5 months after clinical remission is obtained have residual disease activity, primarily moderate to severe inflammation which was associated with lower sustained remission. Early sigmoidoscopy after clinical remission for assessment of mucosal disease should be considered in pediatric UC.

scholarly journals P476 Effectiveness and safety of ustekinumab in ulcerative colitis: Real-world evidence from the ENEIDA registry

2021 ◽  
Vol 15 (Supplement_1) ◽  
pp. S465-S466
Author(s):  
M Chaparro ◽  
A Garre ◽  
M Iborra ◽  
M Sierra ◽  
M Barreiro-de Acosta ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Practice ◽  
Elevated Serum ◽  
Real Life ◽  
Development Program ◽  
Lower Probability ◽  
Clinical Activity ◽  
Mayo Score

Abstract Background The development program (UNIFI) has shown promising results of ustekinumab in ulcerative colitis (UC) treatment that should be confirmed in clinical practice. Aims Primary: to evaluate the durability of ustekinumab treatment in UC patients in clinical practice. Secondary: to assess the short-term response (at week 16) and the long-term effectiveness (at maximum follow-up) and to assess the safety of ustekinumab in clinical practice. Methods Patients included in the prospectively maintained ENEIDA registry who received at least one intravenous dose of ustekinumab due to active UC [Partial Mayo Score (PMS) >2] were included. Clinical activity and effectiveness were defined based on PMS. Results 95 patients were included (table 1). At week 16, 53% of patients had clinical response (including 35% of patients in remission) (figure 1). In the multivariate analysis, elevated serum C-reactive protein was the only variable significantly associated with clinical remission. Long-term remission is represented in figure 2. 36% of patients discontinued the treatment with ustekinumab during a median follow-up of 31 weeks. The probability of maintaining ustekinumab treatment was 87% at week 16, 63% at week 56, and 59% at week 72 (figure 3); primary failure was the main reason for ustekinumab discontinuation. No variable was associated with risk of discontinuation. Three patients reported adverse events; one of them had a fatal severe SARS-CoV-2 infection. Conclusion Ustekinumab is effective both in the short and the long-term in real-life, even in a highly refractory cohort. Higher inflammatory burden at baseline correlated with lower probability of achieving remission. Safety was consistent with the known profile of ustekinumab.

scholarly journals A232 EFFICACY OF TOFACITINIB FOR THE TREATMENT OF MODERATE-TO-SEVERE ULCERATIVE COLITIS: REAL-WORLD DATA

2020 ◽  
Vol 3 (Supplement_1) ◽  
pp. 108-109
Author(s):  
Y Xiao ◽  
P L Lakatos ◽  
R Bourdages ◽  
A Bitton ◽  
W Afif ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Response ◽  
Clinical Remission ◽  
Preliminary Analysis ◽  
Kinase Inhibitor ◽  
Significant Proportion ◽  
Real Life ◽  
Janus Kinase ◽  
Severe Ulcerative Colitis ◽  
Mayo Score

Abstract Background A significant proportion of patients with moderate to severe ulcerative colitis (UC) do not respond to therapy, which includes thiopurines, glucocorticoids, and antagonists to tumour necrosis factor-α and integrin. Tofacitinib, a Janus Kinase inhibitor, has emerged as an efficacious and safe treatment for moderate to severe ulcerative colitis. However, it is not known if this efficacy translates into real-life effectiveness in a regular clinical practice. Aims We aimed to assess the rate of clinical response and clinical remission at 3 and 6 months after tofacitinib initiation. Secondary endpoints included rate of biomarker normalization, corticosteroids-free clinical remission and severe infections. Methods We conducted a multi-center retrospective observational study of adult patients with active UC started on tofacitinib from January 1, 2015 to October 1, 2019 at the McGill University Health Center and Hotel-Dieu de Lévis. A positive clinical response was defined as a decrease of ≥3 in the partial Mayo score. Clinical remission was defined as partial Mayo score of ≤2. Biomarker normalization was defined as fecal calprotectin ≤250ug/g. Severe infection was defined as an infection requiring hospitalization. Results During the study period, 40 patients with UC were started on tofacitinib. Amongst the patients, 85% (n=34) had failed ≥1 biologic and 50% (n=20) had failed ≥3 biologics. At the time of this preliminary analysis, 38 patients had undergone 3 months of treatment and 30 patients had undergone 6 months of treatment. At 3 months, a clinical response was seen in 89.5% of patients (n=34) and clinical remission occurred in 63.2% (n=24). At 6 months, clinical response occurred in 73.3% of patients (n=22) and clinical remission was sustained in 53.33% (n=16). Biochemical normalization occurred in 29.0% (n=11) and 30.0% (n=9) at 3 and 6 months, respectively. Additionally, 63.2% (n=24) and 43.3% of patients (n=13) achieved steroid-free clinical remission at 3 and 6 months, respectively. In the interim, one patient developed a serious infection requiring discontinuation of drug. Conclusions Our preliminary analysis demonstrates that in a real-life setting, tofacitinib is an effective treatment for inducing clinical remission in refractory UC patients. Further data will be complied to better assess the efficacy over a longer follow up. Funding Agencies None

scholarly journals DOP55 A real-world comparison of the effectiveness and safety of vedolizumab and anti-TNF therapies in early treatment initiation with first-line biologic therapy in ulcerative colitis: Results from EVOLVE

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S092-S094
Author(s):  
G Mantzaris ◽  
B Bressler ◽  
U Kopylov ◽  
M Bassel ◽  
N Brett ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Clinical Response ◽  
Real World ◽  
Early Treatment ◽  
Clinical Remission ◽  
Treatment Initiation ◽  
Clinical Effectiveness ◽  
Mucosal Healing ◽  
First Line

Abstract Background Evidence suggests that early treatment (Tx) with biologic agents in Crohn’s disease improves long-term clinical outcomes. However, there is less evidence in ulcerative colitis (UC), and data comparing early Tx with first-line biologic vedolizumab (VDZ) to anti-tumour necrosis factor (anti-TNF) in real-world settings is needed. This study compared the clinical effectiveness and safety of UC patients who initiated VDZ or an anti-TNF as a first-line biologic within 2 years following diagnosis. Methods This was a real-world, multi-country, retrospective chart review study in Canada, Greece and the United States where biologic-naïve UC patients (≥18 years old) were treated with VDZ or an anti-TNF (adalimumab, infliximab, golimumab) agent within 2 years following diagnosis (initiated Tx May 2014–March 2018). Clinical effectiveness and safety data were collected from Tx initiation to earliest of chart abstraction date, death, or 6 months post-Tx discontinuation (Canada only). Tx persistence was defined as the duration of time from treatment initiation to discontinuation. Analyses of cumulative rates of Tx persistence, clinical response, clinical remission and mucosal healing over 24 months were estimated using Kaplan–Meier analyses. Clinical response, remission and mucosal healing were assessed using pre-defined hierarchical algorithms of standard disease measures reported in the medical records. Analyses of incidence rates (per 100 person-years [PYs]) of disease exacerbations, disease-related surgeries, serious adverse events (SAEs) and serious infections (SIs) were performed. Adjusted analyses used inverse probability weighting to balance cohorts. Results This analysis included 176 UC patients (VDZ: 86; anti-TNF: 90) from 37 sites. Mean (SD) age at index date: VDZ, 41.4 (18.9); anti-TNF, 36.8 (15.6) years (p = 0.20) and the proportion male: VDZ, 58.1%; anti-TNF, 56.7% (p = 0.84). At 12 months, 72.9% and 58.1% continued VDZ and anti-TNF respectively (p = 0.03) (Figure 1A). Though there were no differences in clinical response, clinical remission or mucosal healing between VDZ and anti-TNF groups; VDZ patients were significantly less likely to experience disease exacerbations (HR = 0.47 [95% CI: 0.32–0.69]) and SAEs (HR = 0.37 [95% CI: 0.19–0.72]) (Figure 2). Adjusted outcomes (Figures 1C and D, and 2B) were similar to unadjusted outcomes. Conclusion EVOLVE is one of the first studies that compared early VDZ Tx to early anti-TNF Tx in biologic-naïve UC patients. Results showed VDZ was associated with higher persistence, lower likelihood of experiencing disease exacerbations and a more favourable safety profile. Thus, in early UC, Tx with VDZ may improve long-term clinical outcomes. Sample size limitations warrant further study.

scholarly journals P690 A propensity score weighted comparison of vedolizumab, adalimumab, and golimumab in patients with ulcerative colitis: Real-life data from the Sicilian Network for Inflammatory Bowel Disease (SN-IBD)

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S561-S562
Author(s):  
F S Macaluso ◽  
M Ventimiglia ◽  
W Fries ◽  
A Viola ◽  
M Cappello ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Inflammatory Bowel Disease ◽  
Propensity Score ◽  
Clinical Benefit ◽  
Real Life ◽  
Mucosal Healing ◽  
Treatment Persistence ◽  
Mayo Score ◽  
Inflammatory Bowel

Abstract Background No real-life study aiming at comparing at the same time the effectiveness of vedolizumab (VDZ), adalimumab (ADA), and golimumab (GOL) in Ulcerative colitis (UC) is currently available. Methods Data of consecutive patients with UC treated with VDZ, ADA, and GOL from June 2015 to December 2018 were extracted from the cohort of the Sicilian Network for Inflammatory Bowel Disease (SN-IBD). A three-arms propensity score-adjusted analysis was performed to reduce bias caused by imbalanced covariates at baseline, including the proportion of TNF-α inhibitor naïve and non-naïve patients, using the Inverse Probability of Treatment Weighting (IPTW) method. The effectiveness was evaluated at 8 weeks, 52 weeks, and as treatment persistence at the end of follow-up. The clinical endpoints were steroid-free clinical remission (partial Mayo score <2 without steroid use) and clinical response (reduction of the partial Mayo score ≥2 points with a concomitant decrease of steroid dosage compared with baseline). The sum of the two outcomes was defined as a clinical benefit. The achievement of mucosal healing (endoscopic Mayo score 0–1) was assessed after at least 6 months of biological treatment. Results A total of 463 treatments (VDZ: n = 187; ADA: n = 168; GOL: n = 108) were included, with a median follow-up of 47.6 weeks (IQR 20.0–85.9). At 8 weeks, a clinical benefit was achieved in 70.6% patients treated with VDZ, in 68.5% patients treated with ADA, and in 67.6% patients treated with GOL (p = n.s. for all comparisons). After 52 weeks, VDZ showed better rates of clinical benefit compared with both ADA (71.6% vs. 47.5; OR: 2.79, 95% CI 1.63–4.79, p < 0.001) and GOL (71.6% vs. 40.2%; OR: 3.77, 95% CI 2.08–6.80, p < 0.001), while the difference between ADA and GOL was not significant. Cox survival analysis demonstrated that patients treated with VDZ had a reduced probability of treatment discontinuation compared with those treated with ADA (HR: 0.42, 95% CI 0.28–0.64, p < 0.001) and GOL (HR: 0.30, 95% CI 0.19–0.46, p < 0.001), while patients treated with ADA had a reduced risk of treatment discontinuation compared with those treated with GOL (HR: 0.71, 95% CI 0.50–1.00, p = 0.048). Post-treatment mucosal healing rates showed a numerical but non-significant difference in favour of VDZ (48.1%) compared with ADA and GOL (38.0% and 34.6%, respectively). Conclusion In the first study comparing at the same time the clinical effectiveness of VDZ, ADA, and GOL in UC patients via propensity score-adjusted analysis, VDZ was superior to both subcutaneous agents at 52 weeks and as treatment persistence, while ADA showed a superior treatment persistence compared with GOL.

P069 ONTAMALIMAB, A FULLY HUMAN MONOCLONAL ANTIBODY AGAINST MUCOSAL ADDRESSIN CELL ADHESION MOLECULE-1, PROVIDES SUSTAINED EXPOSURE FOLLOWING LONG-TERM TREATMENT IN PATIENTS WITH ULCERATIVE COLITIS

2020 ◽  
Vol 26 (Supplement_1) ◽  
pp. S11-S11
Author(s):  
Yi Wang ◽  
J F Marier ◽  
Leila Kheibarshekan ◽  
Nastya Kassir ◽  
Patrick Martin
Keyword(s):  
Ulcerative Colitis ◽  
Monoclonal Antibody ◽  
Clinical Response ◽  
Clinical Remission ◽  
Cell Adhesion Molecule ◽  
Mucosal Healing ◽  
Efficacy And Safety ◽  
Induction Study ◽  
Cell Adhesion Molecule 1

Abstract Introduction Ontamalimab is a fully human immunoglobulin G2 monoclonal antibody against mucosal addressin cell adhesion molecule-1 in development for the induction and maintenance of clinical remission in patients with ulcerative colitis (UC). This study aimed to assess the long-term pharmacokinetics (PK) of ontamalimab in patients with UC, and the effects of concomitant medications on PK parameters. Methods A 12-week induction study (TURANDOT; NCT01620255) was performed to assess the PK, efficacy and safety of ontamalimab (7.5, 22.5, 75 and 225 mg subcutaneous [s.c.] every four weeks [Q4W]) in patients with UC. Individuals who completed the induction study were eligible for enrollment in an open-label extension (OLE) study (TURANDOT II; NCT01771809) to assess the long-term PK, efficacy and safety of ontamalimab (75 or 225 mg s.c. Q4W up to week 72). Population PK analyses were performed using nonlinear mixed-effects modelling. Exposure-response analyses were performed to assess the relationships between minimum concentration (Cmin,ss) of ontamalimab and clinical response, clinical remission and mucosal healing. The effect of concomitant treatments (used for ≥20% of treatment duration) on PK parameters was also evaluated. Results The PK population included 130 (39.8%) women and 197 (60.2%) men, of median age of 40 years. A 1-compartment model with linear elimination adequately described the PK of ontamalimab. Population estimates of apparent clearance (CL/F) and volume of distribution (V/F) were 0.00917 L/h (0.22 L/day) and 7.44 L, respectively. Albumin had a significant effect on the variability of CL/F. Individuals with albumin levels of 30 g/L and 47 g/L are expected to have CL/F values 44% higher and 23% lower, respectively, than a typical patient with an albumin level of 39 g/L. Anti-inflammatory agents affected CL/F, such that CL/F is expected to be 14% higher in patients receiving than not receiving these agents. Other medications including immunosuppressants, steroids and treatments for peptic ulcers and gastroesophageal reflux disease had no effect on CL/F. Weight was the only covariate that significantly affected V/F. The half-life of ontamalimab was 23.4 days. Concentrations of ontamalimab over 72 weeks in the OLE study were consistent with those observed in the 12-week induction study. Ontamalimab Cmin,ss was related to efficacy, such that at week 16 (week 28 in total including induction), patients with higher Cmin,ss values were more likely to have clinical response, clinical remission and mucosal healing than those with lower Cmin,ss. Conclusion The exposure to ontamalimab was sustained following prolonged treatment in patients with UC for up to 72 weeks. Higher ontamalimab exposure was associated with a higher probability of clinical response.

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