Management Of Immune-mediated Inflammatory Diseases Research Articles

Best Practice for Therapeutic Drug Monitoring of Infliximab: Position Statement from the International Association of Therapeutic Drug Monitoring and Clinical Toxicology.

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. The endorsing TDM of Biologics and Pharmacometrics Committees of the International Association of TDM and Clinical Toxicology collaborated to create this position statement. 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. Successful implementation of TDM for infliximab necessitates interdisciplinary collaboration among clinicians, hospital pharmacists, and (quantitative) clinical pharmacologists to ensure an efficient research trajectory.

AVT02: An Adalimumab Biosimilar.

AVT02 (Hukyndra®, Libmyris®) is a biosimilar of the reference anti-tumour necrosis factor alpha monoclonal antibody adalimumab. It is approved for use in all indications for which reference adalimumab is approved. AVT02 has similar physicochemical and pharmacodynamic properties to those of reference adalimumab, and the pharmacokinetic similarity of the agent has been shown in healthy adult subjects. AVT02 demonstrated clinical efficacy similar to that of reference adalimumab in patients with chronic plaque psoriasis, and was generally well tolerated in this population. The tolerability, safety and immunogenicity profiles of AVT02 were similar to those of reference adalimumab. Switching from reference adalimumab to AVT02 appeared to have no impact on efficacy, safety or immunogenicity. The role of reference adalimumab in the management of immune-mediated inflammatory diseases is well established and AVT02 provides an effective biosimilar alternative for patients requiring adalimumab therapy.Supplementary InformationThe online version contains supplementary material available at 10.1007/s40261-022-01196-w.

The Efficacy of Anti-TNFs in Immune-Mediated Disease

TNF-α is produced in high concentrations in chronic inflammatory disease, resulting in excessive inflammation which eventually leads to organ damage. The advent of anti-TNF therapy in clinical practice 20 years ago represented a significant change in the management of immune-mediated inflammatory diseases (IMIDs), including rheumatoid arthritis (RA), axial spondylarthritis (SpA), psoriasis, and inflammatory bowel disease (IBD). There are five anti-TNFs approved for use in IMIDs: infliximab, adalimumab, golimumab, etanercept, and certolizumab pegol. The structural and pharmacological differences between these agents mean that they can have differential efficacy across IMIDs, and therefore the indications for which they are approved vary. This mini-review aims to summarise the current understanding of anti-TNF efficacy in those IMIDs for which they are approved, focussing on data from meta-analyses of randomised clinical trials (RCTs), and real-world studies.

Design and implementation of a mobile app for the pharmacotherapeutic follow-up of patients diagnosed with immune-mediated inflammatory diseases: eMidCare.

BackgroundPharmacotherapeutic management of immune-mediated inflammatory diseases (IMID) has become more complex due to the development of new treatments, such as biological therapies. Mobile health, especially apps, can provide IMID patients with greater autonomy and facilitate communication with healthcare professionals. Our objective was to design and implement an app for remote monitoring and communication with IMID patients.MethodsA multidisciplinary group was created to design and develop an app for IMID patients in a tertiary hospital. The app functionalities were identified through a focus group with IMID patients and through an observational, descriptive study of available apps for IMID patients at App Store and Play Store platforms. Once the app was designed and developed, we offered the app to IMID patients who initiated a new biological therapy. The inclusion period was from December 2020 to August 2021. We performed an observational, longitudinal study to assess the app’s impact on medication safety, communication, satisfaction, and usability.ResultsWe designed an app (eMidCare®) with the following modules: My Medication, My Questionnaires, Adverse Events, Useful Information, Messages, and Patient Profile. A total of 85 patients were installed with the app. The median (range) follow-up time for app use was 123 (5-270) days. In the My Medication module, 100% of patients registered their biological therapy and 25.9% also used this module to record each dose of medication administered. A total of 82 adverse events (AEs) were registered. Thirty-two percent of the patients registered at least 1 AE. The most frequent AEs were fatigue, injection site reaction, headache, and nausea. Fifty-two percent of patients used the Messages module to communicate with healthcare professionals. The most frequent messages concerned doubts about managing AEs (26.2%) and drug interactions (18.9%). The satisfaction survey yielded a median (range) score of 9.1 (7-10) out of 10.ConclusionsWe developed an app, eMidCare®, which reminds patients to take their medication, enables them to record AEs, and helps them communicate with healthcare professionals. Approximately one-third of the patients registered the administration of the biological therapies and registered at least 1 AE. The most used and most satisfactory functionality was communication with health professionals.

Safety of Anti-TNFs in Patients with Immune-Mediated Disease

In chronic inflammatory disease, TNF-α is produced in high concentrations, leading to excessive inflammation and eventually organ damage. The advent of anti-TNF therapy in clinical practice 20 years ago represented a significant change in the management of immune-mediated inflammatory diseases (IMID). Common concerns regarding the safety profile of anti-TNFs include increased infection rates, associations with cancer, and safety in pregnancy. Regulatory authority guidelines to reduce risk include vaccination and screening for latent infections prior to treatment initiation. In general, pharmacovigilance and tailored medicine are the best methods for optimising anti-TNF therapy while minimising side effects. This mini review aims to summarise the current understanding of the safety profile of this drug class.

Importance of family planning in patients with immune-mediated inflammatory diseases: A multidisciplinary approach

Background and objectivesFamily planning in women with immune-mediated inflammatory diseases is a challenge for healthcare teams, highlighting the need for standardized available evidence to provide patients with objective and agreed information. This study reflects the work performed by a multidisciplinary team in reviewing available scientific evidence, and the strategy agreed for family planning, pregnancy, postpartum, and breastfeeding in patients with immune-mediated inflammatory diseases. MethodsA literature search was conducted, information was structured across the different stages (preconception, pregnancy, postpartum and breastfeeding), and an on-site meeting was convened, in which patients and healthcare providers participated. ResultsSpecific materials, which are included in this work, were developed to guide clinical decisions to be agreed upon by patients and healthcare providers. ConclusionThese materials meet the need for validated and updated information on the approach and use of indicated drugs for professionals responsible for the management of immune-mediated inflammatory diseases.

Mesenchymal Stromal Cell Secretome for the Treatment of Immune-Mediated Inflammatory Diseases: Latest Trends in Isolation, Content Optimization and Delivery Avenues.

Considering the high prevalence and the complex pharmacological management of immune-mediated inflammatory diseases (IMIDs), the search for new therapeutic approaches for their treatment is vital. Although the immunomodulatory and anti-inflammatory effects of mesenchymal stromal cells (MSCs) have been extensively studied as a potential therapy in this field, direct MSC implantation presents some limitations that could slow down the clinical translation. Since the beneficial effects of MSCs have been mainly attributed to their ability to secrete a plethora of bioactive factors, their secretome has been proposed as a new and promising pathway for the treatment of IMIDs. Formed from soluble factors and extracellular vesicles (EVs), the MSC-derived secretome has been proven to elicit immunomodulatory effects that control the inflammatory processes that occur in IMIDs. This article aims to review the available knowledge on the MSC secretome, evaluating the advances in this field in terms of its composition, production and application, as well as analyzing the pending challenges in the field. Moreover, the latest research involving secretome administration in IMIDs is discussed to provide an updated state-of-the-art for this field. Finally, novel secretome delivery alternatives are reviewed, paying special attention to hydrogel encapsulation as one of the most convenient and promising strategies.

Large-Scale Postmarketing Surveillance of Biological Drugs for Immune-Mediated Inflammatory Diseases Through an Italian Distributed Multi-Database Healthcare Network: The VALORE Project.

BackgroundBiological drugs have improved the management of immune-mediated inflammatory diseases (IMIDs) despite being associated with important safety issues such as immunogenicity, infections, and malignancies in real-world settings.ObjectiveThe aim of this study was to explore the potential of a large Italian multi-database distributed network for use in the postmarketing surveillance of biological drugs, including biosimilars, in patients with IMID.MethodsA retrospective cohort study was conducted using 13 Italian regional claims databases during 2010–2019. A tailor-made R-based tool developed for distributed analysis of claims data using a study-specific common data model was customized for this study. We measured the yearly prevalence of biological drug users and the frequency of switches between originator and biosimilars for infliximab, etanercept, and adalimumab separately and stratified them by calendar year and region. We then calculated the cumulative number of users and person-years (PYs) of exposure to individual biological drugs approved for IMIDs. For a number of safety outcomes (e.g., severe acute respiratory syndrome coronavirus 2 [SARS-COV-2] infection), we conducted a sample power calculation to estimate the PYs of exposure required to investigate their association with individual biological drugs approved for IMIDs, considering different strengths of association.ResultsFrom a total underlying population of almost 50 million inhabitants from 13 Italian regions, we identified 143,602 (0.3%) biological drug users, with a cumulative exposure of 507,745 PYs during the entire follow-up. The mean age ± standard deviation of biological drug users was 49.3 ± 16.3, with a female-to-male ratio of 1.2. The age-adjusted yearly prevalence of biological drug users increased threefold from 0.7 per 1000 in 2010 to 2.1 per 1000 in 2019. Overall, we identified 40,996 users of biosimilars of tumor necrosis factor (TNF)-α inhibitors (i.e., etanercept, adalimumab, and infliximab) in the years 2015–2019. Of these, 46% (N = 18,845) switched at any time between originator and biosimilars or vice versa. To investigate a moderate association (incidence rate ratio 2) between biological drugs approved for IMIDs and safety events of interest, such as optic neuritis (lowest background incidence rate 10.4/100,000 PYs) or severe infection (highest background incidence rate 4312/100,000 PYs), a total of 43,311 PYs and 104 PYs of exposure to individual biological drugs, respectively, would be required. As such, using this network, of 15 individual biological drugs approved for IMIDs, the association with those adverse events could be investigated for four (27%) and 14 (93%), respectively.ConclusionThe VALORE project multi-database network has access to data on more than 140,000 biological drug users (and > 0.5 million PYs) from 13 Italian regions during the years 2010–2019, which will be further expanded with the inclusion of data from other regions and more recent calendar years. Overall, the cumulated amount of person-time of exposure to biological drugs approved for IMIDs provides enough statistical power to investigate weak/moderate associations of almost all individual compounds and the most relevant safety outcomes. Moreover, this network may offer the opportunity to investigate the interchangeability of originator and biosimilars of several TNFα inhibitors in different therapeutic areas in real-world settings.Supplementary InformationThe online version contains supplementary material available at 10.1007/s40259-021-00498-3.

The promise and challenges of cell therapy for psoriasis.

The management of moderate-to-severe psoriasis has been transformed by the introduction of biological therapies. These medicines, particularly those targeting interleukin (IL)-17 and IL-23p19, can offer clear or nearly clear skin for the majority of patients with psoriasis, with good long-term drug survival. However, as currently used, none of these therapies is curative and disconcertingly there is a small but increasing number of patients with severe psoriasis who have failed all currently available therapeutic modalities. A similar scenario has occurred in other immune-mediated inflammatory diseases (IMIDs) where treatment options are limited in severely affected patients. In these cases, cell therapy, including haematopoietic stem cell transplantation (HSCT) and mesenchymal stromal cells (MSC), has been utilized. This review discusses the various forms of cell therapy currently available, their utility in the management of IMIDs and emerging evidence for efficacy in severe psoriasis that is unresponsive to biological therapy. Balancing the risks and benefits of treatment vs. the underlying disease is key; cell therapy carries significant risks, costs, regulation and other complexities, which must be justified by outcomes. Although HSCT has anecdotally been reported to benefit severe psoriasis, sometimes with apparent cure, this has mainly been in the setting of other coincidental 'routine' indications. In psoriasis, cell therapies, such as MSC and regulatory T cells, with a lower risk of complications are likely to be more appropriate. Well-designed controlled trials coupled with mechanistic studies are warranted if advanced cell therapies are to be developed and delivered as a realistic option for severe psoriasis.

Maintaining Clinical Freedom Whilst Achieving Value in Biologics Prescribing: An Integrated Cross-Specialty Consensus of UK Dermatologists, Rheumatologists and Gastroenterologists.

BackgroundBiologics are now key drugs in the management of immune-mediated inflammatory diseases. However, the increasingly complex biologics environment and growing cost pressures in the UK have led to variability in drug commissioning and inequity of patient access across regions.ObjectivesOur objectives were to provide consensus recommendations for enhancing the current situation in biologic prescribing in the UK by balancing clinical freedom with equitable distribution of biologics given the limited availability of resources.MethodsA modified Delphi approach was used to reach integrated, cross-specialty consensus among dermatologists, rheumatologists and gastroenterologists practising within the English National Health Service (NHS).ResultsWe describe the concepts of clinical freedom and clinical judgement and demonstrate how, together with patient choice, they can be exercised in the context of biologic prescribing in the NHS. We highlight that in England, local variations occur that are at odds with National Institute for Health and Care Excellence (NICE) guidance; these variably limit the degree to which clinicians can exercise clinical freedom and impact on equity of patient access to treatments. We define factors encompassing a drug’s value and identify challenges to the measurement and interpretation of this concept, which can raise barriers to the freedom of clinical choice and appropriate prescribing decisions allowing practices of holistic and personalised medicine. Cross-specialty consensus recommendations on ensuring equitable access to biologics in the NHS while protecting appropriate and individualised drug selection for patients are provided. We have also provided strategies for improving physician–commissioner communication to harmonise equity of patient access to biologics across England and improve patient outcomes. Commentary from patient advisory groups indicates that they welcome our exploration that value does not equal cost and agree that there should be an emphasis on shared decision making, which requires the clinician to practice clinical freedom by aligning the patient’s needs and preferences with available treatment choices.ConclusionsThis consensus highlights the need to strike a balance between clinical freedom and short-term cost restrictions to support equitable resource distribution within the English NHS. Consideration of these recommendations may help to harmonise local, regional and national services and balance equity of patient access to biologic treatments with excellence in the NHS.Supplementary InformationThe online version contains supplementary material available at 10.1007/s40259-020-00464-5.

PF-06410293: An Adalimumab Biosimilar.

PF-06410293 (Amsparity™/Abrilada™) is a biosimilar of the anti-tumor necrosis factor (TNF)-α antibody adalimumab. It is approved for use in all indications for which adalimumab is approved, including inflammatory joint diseases (e.g. rheumatoid arthritis), uveitis, psoriasis and Crohn's disease. PF-06410293 has similar physicochemical and pharmacodynamic properties to those of EU- and US-sourced reference adalimumab, and the pharmacokinetic similarity of the agents is supported. PF-06410293 demonstrated therapeutic equivalence to EU-sourced reference adalimumab in patients with rheumatoid arthritis, and was generally well tolerated in this population. The tolerability, efficacy, safety and immunogenicity profiles of PF-06410293 were similar to those of EU-sourced reference adalimumab, and switching from reference adalimumab to PF-06410293 appeared to have no impact on safety or efficacy. The role of adalimumab in the management of immune-mediated inflammatory diseases is well established and PF-06410293 provides an effective biosimilar alternative for patients requiring adalimumab therapy.

Association of Serum Ustekinumab Levels With Clinical Response in Psoriasis

High-cost biologic therapies have transformed the management of immune-mediated inflammatory diseases. To optimize outcomes and reduce costs, dose adjustment informed by measurement of circulating drug levels has been shown to be effective in various settings. However, limited evidence exists for this approach with the interleukin 12 and interleukin 23 inhibitor ustekinumab. To evaluate clinical utility of therapeutic drug monitoring for ustekinumab in patients with psoriasis. A prospective observational cohort of 491 adults with psoriasis was recruited to the multicenter Biomarkers of Systemic Treatment Outcomes in Psoriasis study within the British Association of Dermatologists Biologic and Immunomodulators Register from June 2009 to December 2017; samples from some patients were taken between 2009 and 2011 as part of a pilot study with the same inclusion criteria. Serum ustekinumab level measured at any point during the dosing cycle using an enzyme-linked immunosorbent assay. Disease activity measured using the Psoriasis Area and Severity Index (PASI) score. Treatment response outcomes were PASI75 (75% reduction in PASI score from baseline [primary outcome]), PASI90 (90% reduction of PASI score from baseline), and absolute PASI score of 1.5 or less. A total of 491 patients (171 women and 320 men; mean [SD] age, 45.7 [12.8] years) had 1 or more serum samples (total, 853 samples obtained 0-56 weeks from start of treatment) and 1 or more PASI scores within the first year of treatment. Antidrug antibodies were detected in only 17 of 490 patients (3.5%). Early measured drug levels (1-12 weeks after starting treatment) were associated with PASI75 response 6 months after starting treatment (odds ratio, 1.38; 95% CI, 1.11-1.71) when adjusted for baseline PASI score, age, and ustekinumab dose. However, this finding was not consistent across the other PASI outcomes (PASI90 and PASI score of ≤1.5). This real-world study provides evidence that measurement of early serum ustekinumab levels could be useful to direct the treatment strategy for psoriasis. Adequate drug exposure early in the treatment cycle may be particularly important in determining clinical outcome.

Olive secoiridoid oleuropein and its semisynthetic acetyl-derivatives reduce LPS-induced inflammatory response in murine peritoneal macrophages via JAK-STAT and MAPKs signaling pathways

The present study was designed to investigate the potential anti-inflammatory, antioxidant and immunomodulatory activities of three new derivatives from OL in lipopolysaccharide (LPS)-induced mouse peritoneal macrophages in comparison with natural OL. Nitrites levels were analyzed by Griess method and intracellular reactive oxygen species (ROS) by fluorescence analysis. The levels of cytokines were evaluated by ELISA. The protein expression of cyclo-oxigenase (COX)-2), inducible nitric oxide synthase (iNOS), janus kinase/signal transducer activator of transcription (JAK/STAT) pathway (pSTAT3), haem-oxigenase 1 (HO-1), nuclear factor (erythroid-derived 2)-like 2 (Nrf2) and MAPKS activation were determined by Western blot. The mechanisms underlying these protective effects could be related to the activation of Nrf2/HO-1 pathway and inhibition of both JAK-STAT and MAPKs signalling pathways. We conclude that OL and new OL acylated-derivatives exhibited immunomodulatory effects and thus, may offer a new promising therapeutic strategy in the management of immune mediated-inflammatory diseases.

Paradoxical Skin Reactions to Biologics in Patients With Rheumatologic Disorders.

Targeted immune-modulating treatment with biological agents has revolutionized the management of immune-mediated inflammatory diseases, including rheumatologic conditions. The efficacy and tolerability of biological agents, from the initial tumour necrosis factor (TNF)-α inhibitors to the new anti-cytokine monoclonal antibodies, have dramatically changed the natural history of debilitating conditions such as rheumatoid arthritis and seronegative spondyloarthropathies. The widening use of biologics across several rheumatologic diseases has been associated with a new class of adverse events, the so-called paradoxical reactions. These events are inflammatory immune-mediated tissue reactions, developing paradoxically during treatment of rheumatologic conditions with targeted biologics that are commonly used for treating the idiopathic counterparts of these drug-induced reactions. The skin is frequently involved, and, even if considered rare to uncommon, these cutaneous manifestations are an important cause of biologic agent discontinuation. TNF-α antagonist-induced psoriasis, which can manifest de novo or as exacerbation of a pre-existing form, is the prototypic and most frequent paradoxical skin reaction to biologics while other reactions, such as eczematous and lichenoid eruptions, hidradenitis suppurativa, pyoderma gangrenosum, Sweet’s syndrome and granulomatous skin diseases, occur much more rarely. Management of these reactions consists of topical or systemic skin-directed therapies, depending on the severity and extension of the cutaneous picture, and it is generally associated with switching over to other disease-modifying regimens for treating the underlying rheumatologic condition. Here, we review in detail the current concepts and controversies on classification, pathogenesis and clinical management of this new class of cutaneous adverse events induced by biologics in rheumatologic patients.

PP092 Real World Data: Biologic Treatment For Naive Patients In Lazio Region

INTRODUCTION:The introduction of new biologic treatments has radically changed the management of Immune-mediated inflammatory diseases (IMID). Due to the high costs of the treatments a strong control and monitoring of claims databases could help decision makers to understand the consequences of their decisions.The objective of the study was to identify the cohort of biologics treatment-naïve patients in the years 2011–2013 in the Lazio region (6 millions of inhabitants), in order to investigate the parameters influencing the biologic treatment expense at the regional level.METHODS:Patients were enrolled based on administrative databases of the Lazio region. Treatment-naïve patients were defined as subjects who did not have a prescription in the two years before the index prescription. Switcher patients were defined as those who had an Anatomical Therapeutic Chemical classification (ATC) prescription different than the one at enrolment, within one year of the index date. Treatment adherence was estimated as the number of doses actually prescribed as compared to the number indicated in the Summary of Product Characteristics (SPC).RESULTS:From a total number of 10,120 patients treated with biologic drugs between 2011–2013 in the Lazio region, 2,929 were estimated as treatment-naïve patients (42 percent male). The most frequently used drugs were etanercept (31 percent), adalimumab (30 percent) and infliximab (17 percent). Considering the disease treatment distribution, 28.6 percent of patients were treated for rheumatoid arthritis, 25.5 percent for psoriatic arthritis, 16.4 percent for psoriasis and the remaining patients for other diseases. Some patients switched biologic therapy (367), of which 22.6 percent were within the first 120 days. Total mean adherence was estimated in 87.7 percent: 21.5 percent of patients showed a low adherence (SPC< 60 percent) while 18.1 percent were estimated as dose increase patients (SPC>110 percent), 11.4 percent for rheumatic diseases, 32.3 percent for dermatological diseases and 26.9 percent for inflammatory bowel disease.CONCLUSIONS:The study provides a map of the current treatment settinga with biologics in the Lazio region considering the disease, adherence and prescribed treatments. A considerable number of treatment-naïve patients were identified (2,929), 12.5 percent of whom switched ATC within 1 year. Total mean adherence was estimated in 87.7 percent, low adherence occurred in 21.5 percent of patients, while dose-increase was in 18.1 percent.

Biosimilars in immune-mediated inflammatory diseases: initial lessons from the first approved biosimilar anti-tumour necrosis factor monoclonal antibody.

The introduction of targeted biological therapies has revolutionised the management of immune-mediated inflammatory diseases (IMIDs) such as rheumatoid arthritis, ankylosing spondylitis, psoriasis and inflammatory bowel disease. Following treatment with these therapies, many patients experience significant improvements in different aspects of their disease, including symptoms, work productivity and other outcomes relevant for individuals and society. However, due to the complexity of biological drug development and manufacturing processes, the costs of these therapies are relatively high. Indeed, the financial burden on healthcare systems due to biological therapies is considerable and lack of patient access to effective treatment remains a concern in many parts of the world. As many reference biological therapies have now reached or are near to patent expiry, a number of 'biosimilar' drugs have been developed for use in various clinical settings, and some of these drugs are already in use in several countries. While the potential pharmacoeconomic benefits of cost-effective biosimilars seem clear, several issues have been raised regarding, for example, the definition of biosimilarity and the validity of indication extrapolation, as well as the 'switchability' and relative immunogenicity of biosimilars and their reference drugs. In this review, these issues will be discussed with reference to CT-P13, a biosimilar of the anti-tumour necrosis factor monoclonal antibody infliximab, which is approved in Europe and elsewhere for the treatment of various IMIDs. Other important issues, including those related to data collection during nonclinical and clinical development of biosimilars, are also discussed.

Anti-TNF agents as therapeutic choice in immune-mediated inflammatory diseases: focus on adalimumab.

The complex pathogenesis of immune-mediated inflammatory diseases (IMIDs) has been extensively investigated and dysregulation of cytokines, such as tumour necrosis factor (TNF) has been shown to play a dominant role in the pathogenesis of various IMIDs, such as rheumatoid arthritis, ankylosing spondylitis, Crohn's disease, ulcerative colitis, psoriasis and psoriatic arthritis. The subsequent development of biological agents capable of blocking TNF has led to important advances in the pharmacotherapy of such diseases and confirmed the concept of a common pathophysiology among IMIDs with TNF having a predominant role. Five TNF inhibitors have currently been approved for treatment of one or more IMIDs; these include infliximab, etanercept, adalimumab, golimumab and certolizumab pegol. Given the similarities in the pathogenic background of IMIDs, one could expect that anti-TNF agents be similarly effective and with comparable tolerability profiles; however, this may not be the case. Structural and pharmacological differences among the anti-TNF drugs are likely to result in differences in efficacy and tolerability among the agents in the different IMIDs, together with differences in potency, therapeutic dose ranges, dosing regimens, administration routes, and propensity for immunogenicity. Among the five TNF inhibitors approved for treatment of IMIDs, adalimumab has the widest range of indications. Data from controlled clinical trials of adalimumab, showing its excellent efficacy and tolerability in a wide range of indications, are supported by real-world long-term data from observational studies, which confirm the value of adalimumab as a suitable choice in the management of IMIDs.

Adalimumab in the treatment of immune-mediated diseases.

Tumour necrosis factor (TNF) plays an important role in the pathogenesis of immune-mediated inflammatory diseases (IMIDs). TNF inhibition results in down-regulation of abnormal and progressive inflammatory processes, resulting in rapid and sustained clinical remission, improved quality of life and prevention of target organ damage. Adalimumab is the first fully human monoclonal antibody directed against TNF. In this article, we review the role and cost effectiveness of adalimumab in the treatment of IMIDs in adults and children. The efficacy and tolerability of adalimumab has been demonstrated in patients with a wide range of inflammatory conditions, leading to regulatory approval in rheumatoid arthritis (RA), psoriatic arthritis (PsA), plaque psoriasis, inflammatory bowel diseases (Crohn's disease, ulcerative colitis, paediatric Crohn's disease, and intestinal Behçet's disease), ankylosing spondylitis (AS), axial spondyloarthritis (SpA) and juvenile idiopathic arthritis. The major tolerability issues with adalimumab are class effects, such as injection site reactions and increased risk of infection and lymphoma. As with all anti-TNF agents, adalimumab is immunogenic, although less than infliximab, and some patients receiving long-term adalimumab will develop anti-drug antibodies, causing a loss of response. Comparisons of its clinical utility and cost effectiveness have shown it to be a valid treatment choice in a wide range of patients. Recent data from Italian economic studies show the cost effectiveness of adalimumab to be below the threshold value for health care interventions for most indications. In addition, analysis of indirect costs shows that adalimumab significantly reduces social costs associated with RA, PsA, AS, Crohn's disease and psoriasis. The fact that adalimumab has the widest range of approved indications, many often presenting together in the same patient due to the common pathogenesis, may further improve the utility of adalimumab. Current clinical evidence shows adalimumab to be a valuable resource in the management of IMIDs. Further research, designed to identify patients who may benefit most from this drug, will better highlight the role and cost-effectiveness of this versatile TNF inhibitor.

Optimizing Use of Tumor Necrosis Factor Inhibitors in the Management of Immune-Mediated Inflammatory Diseases

The introduction of anti-tumor necrosis factor (TNF) therapies has dramatically improved the treatment of immune-mediated inflammatory diseases and provides treatment options for patients who do not respond to conventional disease-modifying antirheumatic drugs. However, the use of anti-TNF therapies still needs to be optimized. Dropoff rates, patients' lack of response, and toxicity are issues that need to be addressed to render these therapies more effective for more patients.

From Bedside to Bench: The Role of Anti-Tumor Necrosis Factor Agents in the Management of Immune-Mediated Inflammatory Diseases

<h3>ABSTRACT</h3> To capture where things are and what they are doing, the visual system may extract the position and motion of each object relative to its surrounding frame of reference^e.g.,1,2. Here we report a particularly powerful example where a paradoxical stabilization is produced by a moving frame. We first take a frame that moves left and right and we flash its right edge before, and its left edge after, the frame’s motion. For all frame displacements tested, the two edges are perceived as stabilized, with the left edge on the left and right edge on the right, separated by the frame’s width as if the frame were not moving. This illusory stabilization holds even when the frame travels farther than its width, reversing the actual spatial order of the two flashes. Despite this stabilization, the motion of the frame is still seen, albeit much reduced, and this hides the paradoxical standstill of relative positions. In a second experiment, two probes are flashed inside the frame at the <i>same</i> physical location before and after the frame moves. Despite being physically superimposed, the probes are perceived widely separated, again as if they were seen in the frame’s coordinates and the frame were stationary. This illusory separation is set by the distance of the frame’s travel, independently of its speed. This paradoxical stabilization suggests a link to visual constancy across eye movements where the displacement of the entire visual scene may act as a frame to stabilize the perception of relative locations.