Infliximab-associated fulminant hepatic failure in ulcerative colitis: a case report

Drug-Induced Liver Injury due to Biologics and Immune Check Point Inhibitors

Biological agents have in the last two decades become very important therapeutic agents, particularly for the treatment of various autoimmune disorders. The most widely used biologics are the tumor necrosis factor-α (TNF-α) receptor antagonists: infliximab, adalimumab, and etanercept. Other commonly used biological agents are interleukin (IL)-1 receptor antagonist (Anakinra), interleukin (IL)-6 receptor antagonist (tocilizumab), and CD20 surface antigen antagonist (rituximab). The current review will however focus on TNF-α receptor antagonists.

TNF-alpha inhibitors and ustekinumab for the treatment of psoriasis: therapeutic utility in the era of IL-17 and IL-23 inhibitors

Psoriasis is a chronic inflammatory condition for which eleven FDA-approved biologic therapies are approved. Over the past decade, studies have documented the higher efficacy of IL-17 and IL-23 inhibitors for the treatment of psoriasis compared to the TNF-alpha inhibitors and ustekinumab, an IL-12/23 inhibitor. Despite this, there remains an important role for the use of TNF-alpha inhibitors and ustekinumab in the treatment of psoriasis. Here, we review how considerations of infection and malignancy risk, patient demographics, treatment resistance, and co-morbidities may make certain TNF-alpha inhibitors or ustekinumab an excellent choice for therapy in particular patient subgroups.

Drug and herb-induced liver injury: A critical review of Brazilian cases with proposals for the improvement of causality assessment using RUCAM

INTRODUCTION AND OBJECTIVES

Although hepatotoxicity accounts for 10% of adverse drug reactions, it remains poorly understood and underreported. This study aimed to summarize case reports of herb- and drug-induced liver injury in Brazil.

METHODOLOGY

Systematic review in the following databases: PubMed, SciELO, Science Direct, CAPES, and gray literature.

RESULTS

Twenty-seven studies reporting 32 cases were identified. Brazilian cases were primarily detected in hospitals, and occurred mainly in young males suffering from chronic diseases. Drugs (n=29) were a more frequent cause of liver injury than herbs (n=3). Almost a third of these drugs were anticonvulsants, and 15 appear in the Brazilian List of Essential Medicines. In 50% of the cases, clinical manifestations started within 30 days of drug ingestion. Regarding the decline of liver enzymes, 50% of the cases reached normality after drug withdrawal. However, 7 deaths and 2 liver transplantations were reported. Only one study assessed causality using RUCAM.

CONCLUSION

Given the severe outcomes of DILI and HILI, early detection and management of hepatotoxicity to increase drug safety are necessary, as well as pharmacotherapeutic monitoring of patients with chronic diseases. Moreover, the application of the RUCAM algorithm in clinical practice has to be further disseminated.

Biologic and Checkpoint Inhibitor-Induced Liver Injury: A Systematic Literature Review

Biologics are among the most commonly prescribed medications for several chronic inflammatory diseases. Tumor necrosis factor alpha inhibitors, more so than other agents, have been observed to cause drug‐induced liver injury. Additionally, because the approval and popularity of checkpoint inhibitors have grown, similar patterns of liver injury have been documented, with a majority of cases describing immune‐mediated hepatitis. Although the exact mechanism of injury is unknown, various host and medication characteristics play a role in the outcome of the molecular cascade invoked by biologics. Prognosis is usually favorable with cessation of the offending agent, but cases of acute liver failure requiring liver transplantation have also been observed. Therefore, algorithms have been created to assist clinicians in treating drug‐induced autoimmune hepatitis, mostly with corticosteroids. Additionally, case reports have documented successfully rechallenging patients with a different biologic without recurrence of liver injury, but data are limited. Further investigation is warranted regarding the potential for cross‐reactivity and mechanism of injury to develop guidelines to aid clinicians in further management of these patients.

New developments in ulcerative colitis: latest evidence on management, treatment, and maintenance

Ulcerative colitis (UC) is a chronic idiopathic inflammatory disorder that involves any part of the colon starting in the rectum in a continuous fashion presenting typically with symptoms such as bloody diarrhea, abdominal pain, and rectal urgency. UC is diagnosed based on clinical presentation and endoscopic evidence of inflammation in the colon starting in the rectum and extending proximally in the colon. The clinical presentation of the disease usually dictates the choice of pharmacologic therapy, where the goal is to first induce remission and then maintain a corticosteroid-free remission. There are multiple classes of drugs that are available and are used based on the clinical severity of the disease. For mild-to-moderate disease, oral or rectal formulations of 5-aminosalicylic acid are used. In moderate-to-severe UC, corticosteroids are usually used in induction of remission with or without another class of medications such as thiopurines or biologics including anti-tumor necrosis factor, anti-integrins, or Janus kinase inhibitors for maintenance of remission. Up to 15% of the patients may require surgery as they fail to respond to medications and have risk of developing dysplasia secondary to longstanding colitis.

Hepatotoxicity of Inflammatory Bowel Disease Medications

Various medications used to treat inflammatory bowel diseases have been implicated to cause hepatotoxicity. These include sulfasalazine, 5-aminosalicylic acids, fluoroquinolones, metronidazole, thiopurines, methotrexate, anti-tumor necrosis factor agents, and alpha-4 integrin inhibitors. Various types of liver injury have been reported in association with these medications including hypersensitivity reaction, hepatocellular or cholestatic disease, nodular regenerative hyperplasia, liver fibrosis/cirrhosis, portal hypertension and autoimmune liver injury. The revised Roussel Uclaf Causality Assessment Method (RUCAM) provides a scoring system to determine the likelihood of whether a drug caused liver injury. Unfortunately some of the reported liver injuries in association with these treatments have not undergone RUCAM assessment. Therefore, although some of the reports used in this review article show an association between a medication and the reported liver injury, they may not necessarily show causation. In this article, we address methods of monitoring to detect these injuries. We also discuss the prognosis and recommended management plans when liver injury occurs.

Recent Advances in the Histopathology of Drug-Induced Liver Injury

Drug-induced liver injury (DILI) is constantly changing as new drugs are approved and as new herbals and dietary supplements (HDS) reach the market. The pathologist plays a key role in the evaluation of DILI by classifying and interpreting the histologic findings considering patients' medical history and drug exposure. The liver biopsy findings may suggest alternative explanations of the injury and additional testing that should be performed to exclude non-DILI causes. Recent reports of iatrogenic liver injury are reviewed with attention to immunomodulatory and antineoplastic agents as well as reports of injury associated with HDS use.

Acute Liver Failure from Tumor Necrosis Factor-α Antagonists: Report of Four Cases and Literature Review

BACKGROUND

Tumor necrosis factor-α antagonists (anti-TNF-α) have been associated with drug-induced liver injury. However, cases of anti-TNF-α-associated acute liver failure have only been rarely reported.

AIMS

To identify cases of anti-TNF-α-associated acute liver failure and evaluate patterns of liver injury and common characteristics to the cases.

METHODS

The United States Acute Liver Failure Study Group database was searched from 1998 to 2014. Four subjects were identified. A PubMed search for articles that reported anti-TNF-α-associated acute liver failure identified five additional cases.

RESULTS

The majority of individuals affected were female (eight of nine cases). Age of individual ranged from 20 to 53 years. The most common anti-TNF-α agent associated with acute liver failure was infliximab (n = 8). The latency between initial drug exposure and acute liver failure ranged from 3 days to over a year. Of the nine cases, six required emergency LT. Liver biopsy was obtained in seven cases with a preponderance toward cholestatic-hepatitic features; none showed clear autoimmune features.

CONCLUSIONS

Anti-TNF-α-associated acute liver failure displays somewhat different characteristics compared with anti-TNF-α-induced drug-induced liver injury. Infliximab was implicated in the majority of cases. Cholestatic-hepatitic features were frequently found on pre-transplant and explant histology.

Sarcoidosis associated with infliximab therapy in ulcerative colitis: A case report

RATIONALE

Although immunomodulatory therapy has been clearly stated as an important landmark in treatment of ulcerative colitis, significantly improving the quality of life for patients with inflammatory bowel disease, there are several aspects to be considered regarding the possible side-effects of anti-TNF alpha agents. In spite of a good safety profile, biologic TNF antagonists may induce paradoxical inflammation, which can manifest as sarcoid-like granulomatosis, consisting of noncaseating granulomas in the affected organs.

PATIENT CONCERNS

We report the case of a 30-year-old male patient, with no personal or familial history of lung disease, with a personal history of ulcerative colitis (UC), under clinical remission following infliximab therapy in maintenance dose, who was admitted for treatment administration, but also for dyspnea, nocturnal sweating, and nonproductive cough.

DIAGNOSES

Based on clinical manifestations, biological landmarks excluding various infections, CT scan, fibrobronchoscopy with bronchoalveolar lavage for culture and immunohistochemical examination, followed by mediastinoscopy with sampling of paratracheal lymph node, which underwent histopathological examination, the patient was diagnosed with drug- induced stage II pulmonary sarcoidosis.

INTERVENTIONS

Since the patient had developed severe allergic reaction after being administered Infliximab at admission, the biological treatment was immediately discontinued. Following the diagnosis of pulmonary sarcoidosis, corticotherapy was initiated.

PATIENT OUTCOMES

After corticotherapy was initiated, the patient had a favorable outcome at 3 months reevaluation, both regarding the course of ulcerative colitis and sarcoidosis.

LESSONS

Patients under biological therapy using anti-TNF alpha agents must be carefully monitored, in order to early identify potential paradoxical inflammation (such as sarcoidosis) as a side-effect. The drug-related pulmonary disease tends to improve upon withdrawal of the drug, with occasional requirement of steroid treatment. However, a thorough strategy should be assembled in the case of UC relapse in this patient category, with switching to adalimumab or surgical approach as main possibilities.