Life-threatening dermatologic adverse events in oncology

Signal detection of adverse reactions for bendamustine based on FDA adverse event reporting system

BACKGROUND

This study aimed to analyze the adverse events to bendamustine using data obtained from the Food and Drug Administration open public data project (openFDA) and to provide a reference for its use in clinical practice.

RESEARCH DESIGN AND METHODS

Adverse events (AEs) due to bendamustine usage reported from 1 January 2008 to 31 March 2023 were collected from the FDA Adverse Event Reporting System (FAERS). The reporting odds ratio (ROR), proportional reporting ratio (PRR), Bayesian plausible propagation neural network (BCPNN), and multinomial gamma-Poisson distribution shrinking (MGPS) algorithms were used to identify signs of adverse reactions caused by bendamustine.

RESULTS

A total of 4214 AE reports where bendamustine was considered as the first suspected drug were obtained from FAERS. The analysis revealed 214 AE risk signals, among which 141 met the criteria but they were not listed as possible side effects on the drug information sheet provided in the package.

CONCLUSION

Our findings identified numerous common AEs with previously reported clinical observations. We also identified some signs of potential new AEs, indicating the need of careful clinical monitoring of patients treated with bendamustine and further risk identification research about this drug.

Severe cutaneous adverse reactions

Severe cutaneous adverse reactions (SCARs), which include Stevens-Johnson syndrome and toxic epidermal necrolysis, drug reaction with eosinophilia and systemic symptoms (also known as drug-induced hypersensitivity syndrome), acute generalized exanthematous pustulosis, and generalized bullous fixed drug eruption, are life-threatening conditions. The pathogenesis of SCARs involves T cell receptors recognizing drug antigens presented by human leukocyte antigens, triggering the activation of distinct T cell subsets. These cells interact with keratinocytes and various immune cells, orchestrating cutaneous lesions and systemic manifestations. Genetic predisposition, impaired drug metabolism, viral reactivation or infections, and heterologous immunity influence SCAR development and clinical presentation. Specific genetic associations with distinct SCAR phenotypes have been identified, leading to the implementation of genetic screening before prescription in various countries to prevent SCARs. Whilst systemic corticosteroids and conventional immunomodulators have been the primary therapeutic agents, evolving strategies, including biologics and small molecules targeting tumour necrosis factor, different cytokines, or Janus kinase signalling pathways, signify a shift towards a precision management paradigm that considers individual clinical presentations.

Toxic Epidermal Necrolysis and Stevens - Johnson Syndrome Following Sintilimab Administration in a Non-Small Cell Lung Cancer Patient: A Case Report

Immune checkpoint inhibitors such as monoclonal antibodies have been used recently with greater effect for the management of non-small cell lung cancer (NSCLC). Sintilimab, a fully human IgG4 monoclonal antibody is specific for the immune checkpoint protein programmed cell death receptor-1 (PD-1). It is a common medication adopted for treating Hodgkin's lymphoma and NSCLC. The adverse effects associated with the use of monoclonal antibodies should be closely monitored and in the current report, the use of sintilimab for treating NSCLC led to skin-associated adverse effects such as Stevens-Johnson syndrome and toxic epidermal necrolysis. Genetic testing showed that genes such as KRAS, CREBBP, NTRK1, RAF1, and TP53 were mutated. Initial visible symptom included the formation of a vesicular rash on the skin that had spread to the upper limbs, chest, and dorsum 1 week after the administration of sintilimab. The patient received anti-inflammatory agents to prevent worsening of the rashes and further infections. When the vesicles in back and limbs enlarged and the neck skin began to desquamate, the patient was diagnosed with Stevens-Johnson syndrome and sintilimab-induced toxic epidermal necrolysis. Toxic epidermal necrolysis was diagnosed via clinical symptoms and physical examination. The patient also reported the symptoms of oral mucositis. As soon as the dose of sintilimab was reduced to 20 mg/day, the skin-associated condition of the patient began to improve. Although the lump in the lungs decreased considerably 45 days after initial administration of sintilimab, the medication was stopped from use as soon as the skin-related symptoms improved after its withdrawal. This report suggests that close monitoring, personal care, and proper use of medications such as sintilimab should be implemented to avoid such rare skin-associated toxicities as an adverse effect.

A Diagnostic Quandary: Carboplatin-Paclitaxel-Induced Stevens-Johnson Syndrome in a Rare Case of Carcinosarcoma of the Esophagus and Review of the Literature

Sarcomatoid carcinoma of the esophagus, a mixed tumor comprising both carcinomatous and sarcomatoid components and known as carcinosarcoma, is a rare malignancy. Clinically and radiologically, it presents like other esophageal cancers. Here we discuss the case of a 69-year-old male patient with sarcomatoid carcinoma of the esophagus who developed Stevens-Johnson syndrome (SJS) after chemotherapy with carboplatin and paclitaxel. The patient was evaluated for dysphagia and odynophagia. He was initially misdiagnosed to have an esophageal polyp and underwent excision for the same. He presented with recurrent growth at the local site, with histopathological examination showing sarcomatoid carcinoma of the esophagus. After the development of paclitaxel-carboplatin-induced SJS, the patient was subsequently treated with palliative radiotherapy at the primary site for symptomatic relief. He underwent feeding gastrostomy as a supportive nutritional measure and was on best supportive care after a multidisciplinary tumor board discussion. Paclitaxel-carboplatin-induced SJS poses numerous diagnostic conundrums, on account of there being only one reported incident prior to this in literature, to the best of our knowledge. In this report, we explore the diagnostic and therapeutic predicaments associated with a rare disease that is under-reported and understudied in literature and delve into the various treatment modalities that can benefit the patients. The case also demonstrates the delicate balance between cancer chemotherapeutics and their Pandora's box of adverse effects.

Diagnosis and management of complications from the treatment of primary central nervous system tumors in adults

Central nervous system (CNS) tumor patients commonly undergo multimodality treatment in the course of their disease. Adverse effects and complications from these interventions have not been systematically studied, but pose significant challenges in clinical practice and impact function and quality of life, especially in the management of long-term brain tumor survivors. Here, the European Association of Neuro-Oncology (EANO) has developed recommendations to prevent, diagnose, and manage adverse effects and complications in the adult primary brain CNS tumor (except lymphomas) patient population with a specific focus on surgery, radiotherapy, and pharmacotherapy. Specifically, we also provide recommendations for dose adaptations, interruptions, and reexposure for pharmacotherapy that may serve as a reference for the management of standard of care in clinical trials. We also summarize which interventions are unnecessary, inactive or contraindicated. This consensus paper should serve as a reference for the conduct of standard therapy within and outside of clinical trials.

A Rare Case of Pertuzumab-Induced Toxic Epidermal Necrolysis

Pertuzumab is a targeted therapy drug that is employed in the management of human epidermal growth factor receptor 2 (HER2)-positive breast cancer and works by blocking the ability of cancer cells to receive growth and proliferation signals. Toxic epidermal necrolysis (TEN) is a severe cutaneous manifestation characterized by widespread erythema, necrosis, and bullous detachment of the skin involving more than 10% of the body surface area (BSA) and may be precipitated by an immunologic response to the administration of certain medications. However, TEN development as a consequence of HER2 inhibitor therapy has not been described in the existing literature. A 44-year-old female with a history of metastatic breast cancer to the liver presented with a diffuse blistering rash following a first-time administration of pertuzumab three days prior. Her rash began as painful and pruritic blisters 12 hours after the last infusion of pertuzumab and progressed to involve her arms, chest, groin, and thighs with a positive Nikolsky sign. She was managed supportively with high-dose steroids and antihistamines, and although her hospital course was complicated by hypotension requiring pressor support, she gradually made a full recovery and was released to a rehabilitation facility.

Mitigating acute chemotherapy-associated adverse events in patients with cancer

Despite the enthusiasm surrounding novel targeted agents and immunotherapies, chemotherapy remains the mainstay treatment for most human malignancies, either alone or in combination. Yet, the burden of chemotherapy-associated adverse events (CAAEs) remains high and, importantly, is associated with considerable morbidity, mortality and costs that affect patients across multiple dimensions, including physical, emotional and social functioning. CAAEs can directly affect patient outcomes and indirectly increase the risk of cancer recurrence by compromising treatment intensity and continuity. Systematic efforts to identify and critically summarize the evidence on management approaches for CAAEs remain limited. Herein, we review the most common acute CAAEs having a major effect on survival, quality of life, function and/or continuation of optimal therapy. We focus on selected acute toxicities that occur during treatment, summarizing their underlying pathophysiology, multifactorial aetiologies, evidenced-based treatments, prevention strategies and management recommendations. We also summarize the available evidence on risk factors, validated risk assessment tools and other efforts to optimize symptom control in patients most likely to benefit in order to personalize the prevention and treatment of acute CAAEs. Finally, we discuss innovative symptom monitoring and supportive care interventions that are under development to further improve the outcomes of patients with cancer.

Stevens-Johnson syndrome and toxic epidermal necrolysis: A systematic review of PubMed/MEDLINE case reports from 1980 to 2020

Background

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare, life-threatening immunologic reactions. Prior studies using electronic health records, registries or reporting databases are often limited in sample size or lack clinical details. We reviewed diverse detailed case reports published over four decades.

Methods

Stevens-Johnson syndrome and toxic epidermal necrolysis-related case reports were identified from the MEDLINE database between 1980 and 2020. Each report was classified by severity (i.e., SJS, TEN, or SJS-TEN overlap) after being considered a “probable” or “definite” SJS/TEN case. The demographics, preconditions, culprit agents, clinical course, and mortality of the cases were analyzed across the disease severity.

Results

Among 1,059 “probable” or “definite” cases, there were 381 (36.0%) SJS, 602 (56.8%) TEN, and 76 (7.2%) SJS-TEN overlap cases, with a mortality rate of 6.3%, 24.4%, and 21.1%, respectively. Over one-third of cases had immunocompromised conditions preceding onset, including cancer (n = 194,18.3%), autoimmune diseases (n = 97, 9.2%), and human immunodeficiency virus (HIV) (n = 52, 4.9%). During the acute phase of the reaction, 843 (79.5%) cases reported mucous membrane involvement and 210 (19.8%) involved visceral organs. Most cases were drug-induced (n = 957, 90.3%). A total of 379 drug culprits were reported; the most frequently reported drug were antibiotics (n = 285, 26.9%), followed by anticonvulsants (n = 196, 18.5%), analgesics/anesthetics (n = 126, 11.9%), and antineoplastics (n = 120, 11.3%). 127 (12.0%) cases reported non-drug culprits, including infections (n = 68, 6.4%), of which 44 were associated with a mycoplasma pneumoniae infection and radiotherapy (n = 27, 2.5%).

Conclusion

An expansive list of potential causative agents were identified from a large set of literature-reported SJS/TEN cases, which warrant future investigation to understand risk factors and clinical manifestations of SJS/TEN in different populations.

Culprit Medications and Risk Factors Associated with Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis: Population-Based Nested Case-Control Study

OBJECTIVE

Our objective was to describe the incidence of Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN) in a large unselected cohort, to validate the culprit drugs involved and the frequency of SJS/TEN for each drug, and to analyze the clinical risk factors for SJS/TEN.

METHODS

Using the computerized database of Clalit Health Services, we identified all adult patients with a new SJS/TEN diagnosis between 1 January, 2008 and 30 June, 2019 and validated each case. Cumulative incidence of SJS/TEN for each culprit drug was calculated by dividing the number of valid cases by the total number of new users of the drug in the study period. Using risk-set sampling, 20 controls were matched to each case by sex and age on the index date for a nested case-control analysis. Multivariable conditional logistic regression was used to estimate the odds ratio and 95% confidence interval for the association of incident SJS/TEN with chronic diseases.

RESULTS

We identified 87 adult cases of true/probable SJS/TEN between 1 January, 2008 and 30 June, 2019. Culprit drugs [with ALDEN scores ascertained as at least probable (≥ 4)] associated with the highest absolute risks were phenytoin, lamotrigine, and allopurinol with 3.56, 2.82, and 1.10 SJS/TEN cases/10,000 new users, respectively. Additional drugs with mean ALDEN scores ≥ 4 were sunitinib, sulfasalazine, carbamazepine, etoricoxib, etodolac, and cefuroxime, cumulative incidence: 13.57, 0.72, 0.32, 0.05, 0.02, and 0.02/10,000 new users, respectively. Previous diagnosis of systemic lupus erythematosus, psoriasis, previous drug allergies, epilepsy, malignancy, history of cerebrovascular accident, and history of diabetes mellitus were associated with an increased risk for SJS/TEN, odds ratios (95% confidence interval):17.41 (1.31-230.72), 10.28 (3.61-29.31), 5.21 (2.95-9.19), 4.92 (1.88-12.85), 3.17 (1.77-5.66), 2.61 (1.26-5.41), and 1.98 (1.12-3.53), respectively.

CONCLUSIONS

Attention should be drawn to drugs assessed by high ALDEN scores that were associated with high absolute risks for SJS/TEN. Psoriasis, former drug allergies, in addition to systemic lupus erythematosus, malignancy, history of cerebrovascular accident, and diabetes mellitus were associated with increased SJS/TEN risk in our analysis.

Stevens-Johnson Syndrome-Like Reaction After Exposure to Pembrolizumab and Recombinant Zoster Vaccine in a Patient With Metastatic Lung Cancer

Stevens-Johnson syndrome (SJS) is a life-threating mucocutaneous reaction predominantly induced by drugs. Targeted cancer therapies such as pembrolizumab, which has been approved for the treatment of metastatic malignancy, can cause severe skin toxicities, including SJS. They are rare and inconsistently reported. In this article, we report the case of a 80-year-old woman with metastatic non–small cell lung cancer who had a SJS-like eruption involving oral mucosa after 15 weeks of exposure of pembrolizumab (6 doses) and 7 days after 1 dose of recombinant zoster vaccine. SJS is a rare blistering disorder with high mortality rate and significant morbidity. Causes include drugs, herpes viruses, and immunization. The timing of the eruption soon after the receipt of recombinant zoster vaccine suggests a role of vaccination in our patient, yet patients receiving cancer immunotherapy may develop late-onset skin toxicity. Therefore, we recommend long-term monitoring for mucocutaneous reactions after initiation of pembrolizumab. Further research is needed to characterize the immunological pathogenesis and improve timely recognition and treatment strategies.

Daunorubicin induced Stevens-Johnson syndrome: A case report

Clinicians should consider the possible association of Daunorubicin with Stevens-Johnson syndrome (SJS), administer it with caution and promptly evaluate all subsequently developing cutaneous reactions with a high index of suspicion for Stevens-Johnson syndrome.

Chronic lymphocytic leukemia and the skin: implications for the dermatologist

B-cell chronic lymphocytic leukemia (CLL) is the most prevalent leukemia in the United States, and its diagnosis can have many dermatologic implications. For one, the cutaneous manifestations of CLL include several entities, most notably leukemia cutis, eosinophilic dermatosis of hematologic malignancy, and a heightened risk of skin infections. Additionally, CLL patients are at an increased risk of secondary malignancies, most commonly of the skin. Furthermore, a number of commonly utilized treatments for CLL have cutaneous implications which should be considered in the interdisciplinary management of CLL patients. In this review, we will provide an update on the diverse cutaneous manifestations of CLL and CLL-directed therapies in order to help guide dermatologic management of this increasingly prevalent patient population.

Stevens Johnson syndrome: A review of a vision and life-threatening mucocutaneous disease including histopathology with updates on pathogenesis and genetic risk factors

BACKGROUND

The Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) spectrum of diseases are devastating blistering disorders involving mucosal surfaces with ocular sequelae that manifest particularly profound long-term morbidity. Advances in deoxyribonucleic acid (DNA) sequencing, genome-wide association studies, and both molecular and pharmacogenetics have helped clarify genetic susceptibility and characterize the iatrogenic risk of SJS for a given patient.

METHODS

A review of peer reviewed publications featured on PubMed pertaining to the clinical, pathologic, pharmacogenetic and molecular genetic features of SJS/TEN was conducted. Propose: To provide an in-depth clinicopathologic description of the ocular, ocular adnexal, and cutaneous findings in SJS/TEN, summarize pathogenesis and related conditions, and provide an update on the molecular genetic modifications that contribute to the phenotypic variations and genetic susceptibilities of SJS.

CONCLUSIONS

HLA subtyping and other genetic testing may eventually be valuable in the appropriate context to prevent the debilitating ocular sequelae of SJS, particularly as it relates to medication use.

Cutaneous Toxicities in Breast Cancer Patients Receiving Chemotherapy and Targeted Agents--An Observational Clinical Study

BACKGROUND

Systemic chemotherapy and targeted agents are associated with various cutaneous toxicities. Even though cutaneous toxicities are manageable, it often results in treatment discontinuation and worsens the patients' quality of life.

AIM

The study aimed to determine the spectrum of cutaneous toxicities in patients receiving systemic chemotherapy and targeted agents for breast cancer patients.

PATIENTS AND METHODS

A total of 250 out of 720 patients with breast cancer who developed various cutaneous toxicities to chemotherapeutic or targeted agents were included in the study.

RESULTS

Among 250 patients, 57 patients were on neoadjuvant chemotherapy, 89 patients were on adjuvant chemotherapy, 68 were on palliative chemotherapy for metastatic breast cancer and 36 were on targeted treatment for metastatic breast cancer. The most frequently affected site was hair (96%), followed by skin (92%), nail (34%), and mucosa (26%). The most common dermatological toxicity noticed in our study involved the hair in the form of chemotherapy induced alopecia (anagen effluvium) in 93.6%, followed by skin toxicity with generalized xerosis in 92% and, nail toxicity in 34%, and mucosal toxicity in 26%. The most common chemotherapeutic agent which caused frequent cutaneous toxicities in our patients was docetaxel followed by paclitaxel, capecitabine, doxorubicin, epirubicine, cyclophosphamide, 5-flurouracil and targeted agents like lapatinib, everolimus, and tamoxifen.

CONCLUSION

Cutaneous toxicities are common following systemic chemotherapy and targeted agents. Early recognition of cutaneous side effects of these agents and prompt early interventions can reduce the significant morbidity, cosmetic disfigurement, unnecessary treatment interruptions, and psychological distress in women treated for breast cancers.

What's the Price? Toxicities of Targeted Therapies in Breast Cancer Care

Agents with mechanisms novel to breast cancer care have been approved to treat breast cancer. These agents include drugs that target cyclin-dependent kinases, phosphoinositide 3-kinase PI3KCA gene mutations, PARP, checkpoint regulation, and novel antibody-drug conjugates. However, these novel approaches bring a risk of toxicities quite different from those of conventional cytotoxic chemotherapy. Here, we review these agents and discuss related adverse events, with particular attention to endocrine, pulmonary, and dermatologic toxicities. Endocrine toxicities associated with novel cancer therapies for breast cancer are distinct and often present with symptoms related to the specific hormonal deficiencies and rarely hormonal excess. Given the complex and sometimes irreversible nature of these toxicities, once recognized, transdisciplinary management with an endocrinologist experienced with managing drug-related toxicities is encouraged. Drug-related pneumonitis is a serious concern with new targeted therapies. Presentation may not be easily distinguished, and a multidisciplinary team approach can optimize patient care. Heightened awareness is crucial for early detection and treatment. Management should follow recommendations provided by the National Cancer Institute Common Terminology Criteria for Adverse Events and agent-specific guidelines. Cutaneous toxicities from anticancer therapies represent a common and often poorly characterized challenge for patients with breast cancer. Although our understanding of dermatologic effects from novel therapies continues to improve, the breadth of toxicities spans all dermatologic conditions. Targeted therapies offer effective and often novel therapeutic strategies for patients with breast cancer but also bring new adverse event profiles. In this era, it will be important both to closely follow monitoring recommendations and to remain vigilant for emerging toxicities.

Potentially life‑threatening severe cutaneous adverse reactions associated with tyrosine kinase inhibitors (Review)

Tyrosine kinase inhibitors (TKIs) have emerged as a new frontier of cancer therapy. These agents include inhibitors of epidermal growth factor receptor (EGFR), human epidermal growth factor receptor 2 (HER2), BRAF, mitogen‑activated protein kinase kinase (also referred to as MEK), bcr‑abl, c‑KIT, platelet‑derived growth factor (PDGFR), fibroblast growth factor receptor (FGFR), anaplastic lymphoma kinase (ALK) and vascular endothelial growth factor (VEGF). Along with the evolving applications of TKIs, there has been an increased recognition of the breadth of potential cutaneous toxicities to these agents. In this review, we provide an overview of potentially life‑threatening severe cutaneous adverse reactions (SCARs) that may occur during therapy with TKIs. These toxicities include Stevens‑Johnson Syndrome (SJS), toxic epidermal necrolysis (TEN), drug reaction with eosinophilia and systemic symptoms (DRESS), and acute generalized exanthematous pustulosis (AGEP).

Cutaneous Adverse Events in Newly Approved FDA Non-cancer Drugs: A Systematic Review

The prevalence of cutaneous adverse events attributable to newly approved anti-cancer drugs has been well reviewed in the dermatologic literature. In contrast, over 75% of US Food and Drug Administration approvals in the past 5 years have been for non-cancer drugs and indications. This represents multiple other categories of approved medications associated with cutaneous adverse reactions. To investigate the cutaneous adverse events associated with these potentially neglected medications, a systematic review was conducted. Two hundred and forty-one medications approved by the Food and Drug Administration between 2013 and 2018 were reviewed and 180 non-oncologic drugs were identified. The prescribing information for each medication was reviewed for the presence of cutaneous adverse events and a supplemental literature search was performed to better characterize any adverse events outlined within the prescribing information. Most reactions were classified as morbilliform, macular, popular, or maculopapular. Fortunately, only a few severe cutaneous adverse reactions were reported, namely in benznidazole, cannabidiol, and sofosbuvir. This review summarizes available data drawn from clinical trials and case reports involving cutaneous adverse events from the 21 non-oncologic medications associated with cutaneous adverse events.

Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis in Children With Non-Hodgkin Lymphoma

The aim of this study is to evaluate the clinical and laboratory findings of pediatric patients with non-Hodgkin lymphoma (NHL) who developed Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). Between 2006 and 2018, the medical records of child patients with NHL who developed SJS and TEN were reviewed retrospectively. SJS/TEN developed in 7 of 70 patients with NHL (10%). The pathologic subgroups of the patients with SJS/TEN were ALK-negative anaplastic large cell lymphoma (n: 3), Burkitt lymphoma (n: 2), lymphoblastic lymphoma (n: 1), and primary mediastinal B-cell lymphoma (n: 1). Five patients had TEN, 1 patient had SJS/TEN, and 1 patient developed only SJS. In 5 patients, both steroids and intravenous immunoglobulin were administered for treatment, and clinical improvement was achieved in 3 of these patients. Only steroid treatment was used for 1 patient, whereas for the other patient, intravenous immunoglobin was preferred. In addition, N-acetylcysteine treatment was administered for these 2 patients. Four patients with acute renal failure died, and it was found that SJS/TEN is observed more frequently in patients with NHL in which intensive treatment protocols with high-dose methotrexate are used more than with other childhood malignant diseases. Early diagnosis and administration of appropriate and supportive treatment approaches may improve the prognosis.

Epidemiology and Risk Factors for Severe Delayed Drug Hypersensitivity Reactions

Severe delayed drug hypersensitivity reactions comprise different clinical entities and can involve different immune-mediated mechanisms. Common examples are severe cutaneous adverse reactions and druginduced internal organ injuries. The incidence of such reactions is overall low but seems to be on the rise reaching numbers as high as 9 per million individuals-years in the case of SJS/TEN and DRESS. Such conditions carry an important associated morbidity, and mortality can attain 40% in SJS/TEN patients, making these hypersensitivity reactions important targets when implementing preventive measures. Several risk factors have been identified for reaction severity; some are transverse, such as older age and underlying chronic diseases. The recent advances in pharmacogenetics allowed the identification of specific populations with higher risk and permitted strategic avoidance of certain drugs being HLA-B*57:01 screening in patients initiating abacavir the best successful example. In this work, we reviewed the epidemiology of SCARs and liver/kidney/lung drug-induced immune-mediated reactions. We focus on particular aspects such as prevalence and incidence, drugs involved, mortality and risk factors.

Outpatient dermatology consultations for oncology patients with acute dermatologic adverse events impact anticancer therapy interruption: a retrospective study

BACKGROUND

Dermatologic adverse events (dAEs) of anticancer therapies may negatively impact dosing and quality of life. While therapy interruption patterns due to dAEs have been studied in hospitalized cancer patients, similar outcomes in outpatient oncodermatology are lacking.

OBJECTIVES

To analyse the therapy interruption patterns, clinico-histopathologic characteristics and management outcomes of outpatient dermatology consultations for acute dAEs attributed to the most frequently interrupted class of oncologic agents.

METHODS

We performed a retrospective cohort study of all cancer patients who received a same-day outpatient dermatology consultation for acute dAEs at our institution from 1 January to 30 June 2015. Relevant data were abstracted from electronic medical records, including demographics, oncologic history and explicit recommendations by both the referring clinician and consulting dermatologist on anticancer therapy interruption. Consultations with the most frequently interrupted class of oncologic treatment were characterized according to clinico-histopathologic features, dermatologic management and clinical outcomes.

RESULTS

There were 426 same-day outpatient dermatology consultations (median age 59, 60% female, 30% breast cancer), of which 295 (69%) had systemic anticancer therapy administered within 30 days prior. There was weak inter-rater agreement between referring clinicians and consulting dermatologists on interruption of anticancer treatment (n = 150, κ = 0.096; 95% CI -0.02 to 0.21). Seventy-three (25%) consultations involved interruption by the referring clinician, most commonly targeted therapy (24, 33%). Maculopapular rash was commonly observed in 23 consultations with 25 dAEs attributed to targeted agents (48%), and topical corticosteroids were most frequently utilized for management (22, 38%). The majority (83%) of consultations with targeted therapy-induced dAEs responded to dermatologic treatment and 84% resumed oncologic therapy, although three (19%) at a reduced dose. Rash recurred only in two instances (13%).

CONCLUSIONS

A high frequency of positive outcomes in the management of targeted therapy-induced dAEs by outpatient consulting dermatologists and low recurrence of skin toxicity suggests impactful reductions in interruption of anticancer therapy.

Drug-induced skin toxicity: gaps in preclinical testing cascade as opportunities for complex in vitro models and assays

Skin is the largest organ of the body and serves as the principle barrier to the environment. Composed of multiple cell types arranged in stratified layers with highly specialized appendages, it serves sensory and immune surveillance roles in addition to its primary mechanical function. Several complex in vitro models of skin (i.e. microphysiological systems (MPS) including but not limited to 3D tissues, organ-on-a-chip, organoids), have been developed and assays validated for regulatory purposes. As such, skin is arguably the most advanced organ with respect to model development and adoption across industries including chemical, cosmetic, and to a somewhat lesser extent, pharmaceutical. Early adoption of complex skin models and associated assays for assessment of irritation and corrosion spurred research into other areas such as sensitization, absorption, phototoxicity, and genotoxicity. Despite such considerable advancements, opportunities remain for immune capabilities, inclusion of appendages such as hair follicles, fluidics, and innervation, among others. Herein, we provide an overview of current complex skin model capabilities and limitations within the drug development scheme, and recommendations for future model development and assay qualification and/or validation with the intent to facilitate wider adoption of use within the pharmaceutical industry.

Complications and Toxicities Associated with Cancer Therapies in the Intensive Care Unit

Advances in the management of hematologic malignancies and solid tumors have given rise to diverse modalities to treat cancer other than cytotoxic chemotherapy, including targeted therapies, immunotherapies, and cellular therapies. Currently, there are over 175 FDA-approved antineoplastic agents in the United States, many with a diverse and profound toxicity profile. Complications of antineoplastic therapy may result in the need for intensive care unit (ICU) admission to provide acute symptom management. Accordingly, ICU providers caring for cancer patients should have a working knowledge of the toxicities and complications associated with antineoplastic therapy.

Ribociclib-Related Stevens-Johnson Syndrome: Oncologic Awareness, Case Report, and Literature Review

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis belong to a severe dermatopathic spectrum that includes frequently fatal mucocutaneous manifestations consisting of whole epidermal necrosis and sloughing with bullous transformation, blistering, and further skin detachment. Notably, cancer patients are at higher risk of developing SJS than the general population as a consequence of both the nature of neoplastic disease and frequent exposure to anticancer drugs. Ribociclib is a newly approved cycline-dependent kinase inhibitor that has been recently associated with a single case of SJS. We hereby present a case of ribociclib-related SJS. Early detection of threatening skin lesions is crucial to permit the immediate discontinuation of ribociclib given the predictable and unacceptable risk level. In cases of established SJS, early aggressive support should be initiated, ribociclib should be abruptly discontinued, and specific treatment based on actual evidence should be started.

Stevens-Johnson syndrome and toxic epidermal necrolysis: a retrospective descriptive study

BACKGROUND

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare and potentially life-threatening mucocutaneous reactions. Given their rarity, limited cohort studies have been done. The aim of this study is to evaluate and compare the demographics, etiology, management, clinical and laboratory characteristics, complications, and outcome of SJS/TEN patients seen by the inpatient dermatology service at the University of Puerto Rico.

METHODS

A retrospective review of 30 cases with identified diagnosis of SJS, overlap SJS/TEN, or TEN who were consulted to the Dermatology Department of the University of Puerto Rico from 2006 to 2017.

RESULTS

A total of 24 adult and six pediatric cases were reviewed. Females were predominant with a female to male ratio of 1.3 : 1. The most frequent offending drugs identified were antibiotics (56.7%), anticonvulsants (23.3%), and nonsteroidal anti-inflammatory drugs (NSAIDs) (16.7%) with the most frequent antibiotic identified being trimethoprim/sulfamethoxazole (23.3%). Seventy percent of patients experienced at least one complication, most often of infectious etiology (80.1%). During hospital course, 73% received pharmacologic therapy (23% received IVIG alone, 17% received steroids alone, and 33% both) versus 27% which received only supportive care. Mortality rate in this study was 13.8%. When comparing SCORTEN at day one of admission, deceased cases had a mean SCORTEN at day 1 of 4.0, while survivors had an average of 1.54 (P < 0.001).

CONCLUSION

Antibiotics followed by anticonvulsants were the most frequently offending drugs identified within this study.

Anticancer Agent-Induced Life-Threatening Skin Toxicities: A Database Study of Spontaneous Reporting Data

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are potentially life-threatening cutaneous and mucosal adverse reactions to drugs. Nevertheless, the connection to anticancer agents remains unclear. To provide insight into the association of such adverse reactions with anticancer agents, we analyzed the profile of anticancer agent-induced SJS and TEN in the Japanese population. Of the 9,738 SJS/TEN events recorded in a database of spontaneous reporting data, 485 (5%, further categorized as SJS, 384 events, 79%; TEN, 101 events, 21%) were identified as anticancer agent-induced, and 53 of these (11%) were fatal. Multivariate logistic regression analyses indicated that, compared with patients using other drugs, those using anticancer drugs had lower incident risk of death (hazard ratio [HR], 0.592; p = .0006), longer median time to onset of SJS/TEN (18 vs. 11 days; p < .0001; multivariate Cox regression: HR, 0.66; p < .0001), and a higher likelihood of developing SJS/TEN later than 70 days after initiation of the suspected causal agent (15% vs. 7%; p < .0001), highlighting the need for vigilance and continuous monitoring for SJS/TEN in patients treated with anticancer agents. IMPLICATIONS FOR PRACTICE: Life-threatening skin toxicities induced by anti-cancer agents indicated significantly lower incident risk of death and longer time to onset of symptoms than for those induced by other drugs.

Toxic epidermal necrolysis: a paradigm of critical illness

Toxic epidermal necrolysis is an adverse immunological skin reaction secondary in most cases to the administration of a drug. Toxic epidermal necrolysis, Stevens-Johnson syndrome, and multiform exudative erythema are part of the same disease spectrum. The mortality rate from toxic epidermal necrolysis is approximately 30%. The pathophysiology of toxic epidermal necrolysis is similar in many respects to that of superficial skin burns. Mucosal involvement of the ocular and genital epithelium is associated with serious sequelae if the condition is not treated early. It is generally accepted that patients with toxic epidermal necrolysis are better treated in burn units, which are experienced in the management of patients with extensive skin loss. Treatment includes support, elimination, and coverage with biosynthetic derivatives of the skin in affected areas, treatment of mucosal involvement, and specific immunosuppressive treatment. Of the treatments tested, only immunoglobulin G and cyclosporin A are currently used in most centers, even though there is no solid evidence to recommend any specific treatment. The particular aspects of the treatment of this disease include the prevention of sequelae related to the formation of synechiae, eye care to prevent serious sequelae that can lead to blindness, and specific immunosuppressive treatment. Better knowledge of the management principles of toxic epidermal necrolysis will lead to better disease management, higher survival rates, and lower prevalence of sequelae.

Hepatitis B infection reported with cancer chemotherapy: analyzing the US FDA Adverse Event Reporting System

We conducted data mining using the US Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) database on spontaneously reported adverse events to evaluate the association between anticancer drug therapy and hepatitis B infection. Reports of hepatitis B infection were retrieved from the FAERS database. The reporting odds ratio (ROR) was used to estimate the association between hepatitis B infection and various anticancer agents and drug combinations. We detected statistically significant risk signals of hepatitis B for 33 of 64 anticancer agents by ROR (26 cytotoxicity drugs and seven molecular-targeted drugs). We focused on molecular-targeted drugs and assessed the risk of hepatitis B from specific anticancer drug combinations. The frequency of hepatitis B infection was significantly high for drugs such as rituximab, bortezomib, imatinib, and everolimus. The addition of cyclophosphamide, doxorubicin, and fludarabine to drug combinations additively enhanced the frequency of hepatitis B infection. There were no reports on hepatitis B infection associated with trastuzumab or azacitidine monotherapy. However, trastuzumab-containing regimens (e.g., combinations with docetaxel or paclitaxel) were correlated with the incidence of hepatitis B infection, similar to azacitidine monotherapy. Our findings suggest that the concomitant use of anticancer drugs, such as trastuzumab, taxane, and azacitidine, may contribute to the risk of hepatitis B infection. The unique signals detected from the public database might provide clues to eliminate the threat of HBV in oncology.

Severe cutaneous adverse reactions induced by targeted anticancer therapies and immunotherapies

With the increasing use of targeted anticancer drugs and immunotherapies, there have been a substantial number of reports concerning life-threatening severe cutaneous adverse reactions (SCARs), including Stevens–Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), drug rash with eosinophilia and systemic symptoms, drug-induced hypersensitivity syndrome, and acute generalized exanthematous pustulosis. Although the potential risks and characteristics for targeted anticancer agent- and immunotherapy-induced SCAR were not well understood, these serious adverse reactions usually result in morbidity and sequela. As a treatment guideline for this devastating condition is still unavailable, prompt withdrawal of causative drugs is believed to be a priority of patient management. In this review, we outline distinct types of SCARs caused by targeted anticancer therapies and immunotherapies. Also, we discuss the clinical course, latency, concomitant medication, tolerability of rechallenge or alternatives, tumor response, and mortality associated with these devastating conditions. Imatinib, vemurafenib, and rituximab were the top three offending medications that most commonly caused SJS/TEN, while EGFR inhibitors were the group of drugs that most frequently induced SJS/TEN. For drug rash with eosinophilia and systemic symptoms/drug-induced hypersensitivity syndrome and acute generalized exanthematous pustulosis, imatinib was also the most common offending drug. Additionally, we delineated 10 SCAR cases related to innovative immunotherapies, including PD1 and CTLA4 inhibitors. There was a wide range of latency periods: 5.5–91 days (median). Only eight of 16 reported patients with SCAR showed clinical responses. Targeted anticancer drugs and immunotherapies can lead to lethal SCAR (14 deceased patients were identified as suffering from SJS/TEN). The mortality rate of TEN was high: up to 52.4%. The information compiled herein will serve as a solid foundation to formulate ideas for early recognition of SCAR and to discontinue offending drugs for better management.

An Updated Review of the Molecular Mechanisms in Drug Hypersensitivity

Drug hypersensitivity may manifest ranging from milder skin reactions (e.g., maculopapular exanthema and urticaria) to severe systemic reactions, such as anaphylaxis, drug reactions with eosinophilia and systemic symptoms (DRESS)/drug-induced hypersensitivity syndrome (DIHS), or Stevens–Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN). Current pharmacogenomic studies have made important strides in the prevention of some drug hypersensitivity through the identification of relevant genetic variants, particularly for genes encoding drug-metabolizing enzymes and human leukocyte antigens (HLAs). The associations identified by these studies are usually drug, phenotype, and ethnic specific. The drug presentation models that explain how small drug antigens might interact with HLA and T cell receptor (TCR) molecules in drug hypersensitivity include the hapten theory, the p-i concept, the altered peptide repertoire model, and the altered TCR repertoire model. The broad spectrum of clinical manifestations of drug hypersensitivity involving different drugs, as well as the various pathomechanisms involved, makes the diagnosis and management of it more challenging. This review highlights recent advances in our understanding of the predisposing factors, immune mechanisms, pathogenesis, diagnostic tools, and therapeutic approaches for drug hypersensitivity.

Crizotinib-associated toxic epidermal necrolysis in an ALK-positive advanced NSCLC patient

Crizotinib is an oral small-molecule inhibitor of anaplastic lymphoma kinase (ALK) tyrosine-kinase that has been approved for treating patients with advanced echinoderm microtubule associated protein like 4-ALK rearranged non-small-cell lung cancer (NSCLC). Toxic epidermal necrolysis (TEN) is a rare adverse event associated with crizotinib. The present study reported a case of a 75-year-old Chinese male patient with advanced NSCLC with ALK fusion, who developed TEN after 56 days of crizotinib treatment and demised due to this dermatological adverse event. The occurrence of severe cutaneous necrolysis that predominantly involves the skin and mucous membranes during crizotinib treatment should alert clinicians to be aware of TEN and take prompt actions.

The Role of Oncodermatology in the Care of Patients Receiving Cancer Therapy

OBJECTIVE

To review the emerging sub-specialty of oncodermatology and the role of oncodermatology nurses as facilitators of interprofessional collaboration between the oncology team and the dermatology team.

DATA SOURCES

Journal articles indexed on the National Library of Medicine database.

CONCLUSION

The complexity of cancer care with new cancer therapies and their associated dermatologic adverse events profiles benefit from a collaborative, interprofessional approach between dermatology and oncology in the care of the patient with cancer.

IMPLICATIONS FOR NURSING PRACTICE

Oncodermatology nurses are in roles that can facilitate interprofessional collaboration, optimizing the care of patients with cancer.

Dermatological adverse events with taxane chemotherapy

Taxanes (docetaxel and paclitaxel) are among the most commonly prescribed anticancer drugs approved for the treatment of metastatic or locally advanced breast, non-small cell lung, prostate, gastric, head and neck, and ovarian cancers, as well as in the adjuvant setting for operable node-positive breast cancers. Although the true incidence of dermatological adverse events (AEs) in patients receiving taxanes is not known, and has never been prospectively analysed, they clearly represent one of the major AEs associated with these agents. With an increase in the occurrence of cutaneous AEs during treatment with novel targeted and immunological therapies when used in combination with taxanes, a thorough understanding of reactions attributable to this class is imperative. Moreover, identification and management of dermatological AEs is critical for maintaining the quality of life in cancer patients and for minimizing dose modifications of their antineoplastic regimen. This analysis represents a systematic review of the dermatological conditions reported with the use of these drugs, complemented by experience at comprehensive cancer centres. The conditions reported herein include skin, hair, and nail toxicities. Lastly, we describe the dermatological data available for the new, recently FDA-and EMA- approved, solvent-free nab-paclitaxel.

Severe Delayed Cutaneous and Systemic Reactions to Drugs: A Global Perspective on the Science and Art of Current Practice

Most immune-mediated adverse drug reactions (IM-ADRs) involve the skin, and many have additional systemic features. Severe cutaneous adverse drug reactions (SCARs) are an uncommon, potentially life-threatening, and challenging subgroup of IM-ADRs with diverse clinical phenotypes, mechanisms, and offending drugs. T-cell-mediated immunopathology is central to these severe delayed reactions, but effector cells and cytokines differ by clinical phenotype. Strong HLA-gene associations have been elucidated for specific drug-SCAR IM-ADRs such as Stevens-Johnson syndrome/toxic epidermal necrolysis, although the mechanisms by which carriage of a specific HLA allele is necessary but not sufficient for the development of many IM-ADRs is still being defined. SCAR management is complicated by substantial short- and long-term morbidity/mortality and the potential need to treat ongoing comorbid disease with related medications. Multidisciplinary specialist teams at experienced units should care for patients. In the setting of SCAR, patient outcomes as well as preventive, diagnostic, treatment, and management approaches are often not generalizable, but rather context specific, driven by population HLA-genetics, the pharmacology and genetic risk factors of the implicated drug, severity of underlying comorbid disease necessitating ongoing treatments, and cost considerations. In this review, we update the basic and clinical science of SCAR diagnosis and management.

Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis in the Pediatric Population: A Review

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe dermatologic reactions with mucocutaneous involvement that carry elevated mortality rates. They differ along a spectrum of severity based upon body surface area affected. These conditions, usually caused by a drug or infection, are believed to result from cell-mediated and often drug-specific cytotoxic reactions against keratinocytes, leading to widespread dermal-epidermal detachment. Studies attempting to identify potential curative therapies such as intravenous immune globulin (IVIG) and corticosteroids remain inconclusive. However, improved outcomes have been demonstrated by early withdrawal of offending medications, early transfer to an intensive care unit or burn unit, and aggressive supportive care. Due to the rare incidence of SJS and TEN, its recurrence among survivors hints at future vulnerability for these patients, and notorious offending medications should thus be avoided. This clinical review will highlight the diagnostic and therapeutic challenges posed by SJS and TEN, while emphasizing the need to maintain them high on the emergency medicine physician's differential. The review will also detail the supportive measures to take for preventing the rapid progression of mucocutaneous complications and subsequent sepsis-related mortality.

Analysis of Stevens-Johnson syndrome and toxic epidermal necrolysis using the Japanese Adverse Drug Event Report database

Background

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe cutaneous adverse reactions associated with fatal disorders. Although many causes of SJS/TEN have been proposed, the time-to-onset for SJS/TEN and the relationship between aging and SJS/TEN are still not clear. Therefore, the aim of this study was to determine the relationship between aging and SJS/TEN using the Japanese Adverse Drug Event Report (JADER) database and analyze the time-to-onset profile of SJS/TEN.

Methods

We analyzed reports of SJS/TEN recorded in the JADER database between 2004 and 2015 using an adjusted reporting odds ratio (ROR). We also used Weibull proportional hazards models for each drug to examine the expression patterns of SJS/TEN. We selected the drugs according to the number of the reports associated with SJS/TEN.

Results

The JADER contained 330,686 reports from April 2004 to April 2015. The adjusted RORs for patients in the 0–19-, 20–39-, 60–79-, and ≥ 80-year-old groups from all data extracted from the JADER database were 1.33 (95 % confidence interval [CI], 1.21–1.45), 1.78 (95 % CI, 1.65–1.93), 0.71 (95 % CI, 0.66–0.75), and 0.72 (95 % CI, 0.66–0.79), respectively. The adjusted ROR tended to be higher in patients aged 0–19 years, particularly in patients using antipyretic analgesics, such as loxoprofen or acetaminophen. More than half of the cases of SJS/TEN onset following administration of loxoprofen and acetaminophen occurred within 4 days of the initiation of treatment. The median times-to-onset were 3 days for loxoprofen and 2 days for acetaminophen. The scale parameter α values of loxoprofen and acetaminophen were 9.44 and 6.17, respectively. The upper 95 % CIs of shape parameter β values for the drugs were all less than 1, with the exceptions of those for carbamazepine, ACE inhibitors, and corticosteroids.

Conclusions

Our results suggested that monitoring of younger patients who frequently use antipyretic analgesics is important. These drugs should be used and monitored within the first 2–3 days of treatment in the Japanese population.

Morbidity and Mortality of Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis in United States Adults

Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are life-threatening disorders. Our study objective was to describe the incidence, costs of care, length of stay, comorbidities, and mortality of SJS and TEN in US adults. The Nationwide Inpatient Sample 2009-2012, containing a 20% sample of all US hospitalizations, was analyzed. We used a validated approach involving International Classification of Disease, 9th edition, Clinical Modification codes to identify SJS, SJS/TEN, and TEN (n = 2,591, n = 502, and n = 564, respectively). The mean estimated incidences of SJS, SJS/TEN, and TEN were 9.2, 1.6, and 1.9 per million adults per year, respectively. SJS/TEN was associated with nonwhite race, particularly Asians (odds ratio = 3.27, 95% confidence interval = 3.02-3.54) and blacks (odds ratio = 2.01, 95% confidence interval = 1.92-2.10). Significantly prolonged length of stay and higher costs of care (SJS: 9.8 ± 0.3 days, $21,437 ± $807; SJS/TEN: 16.5 ± 1.0 days, $58,954 ± $5,238; TEN: 16.2 ± 1.0 days, $53,695 ± $4,037) were observed compared with all other admissions (4.7 ± 0.02 days, $11,281 ± $98). Mean adjusted mortality was 4.8% for SJS, 19.4% for SJS/TEN, and 14.8% for TEN. SJS, SJS/TEN, and TEN pose a substantial health care burden. Predictors of mortality included increasing age, increasing number of chronic conditions, infection (septicemia, pneumonia, tuberculosis), hematological malignancy (non-Hodgkin's lymphoma, leukemia), and renal failure (P ≤ 0.03 for all). Further studies are needed to confirm mortality findings to improve prognostication of SJS/TEN.

Adverse reactions to oncologic drugs: spontaneous reporting and signal detection

Oncology is one of the areas of medicine with the most active research being conducted on new drugs. New pharmacological entities frequently enter the clinical arena, and therefore, the safety profile of anticancer products deserves continuous monitoring. However, only very severe and (unusual) suspected adverse drug reactions (ADRs) are usually reported, since cancer patients develop ADRs very frequently and some practical selectivity must be used. Notably, a recent study was able to identify 76 serious ADRs reported in updated drug labels of oncologic drugs and 50% of them (n = 38) were potentially fatal. Of these, 49 and 58%, respectively, were not described in initial drug labels. The aims of this article are to provide an overview about spontaneous reporting of ADRs of oncologic drugs and to discuss the available methods to analyze the safety of anticancer drugs using databases of spontaneous ADR reporting.

Dermatological toxicity associated with targeted therapies in cancer: optimal management

Targeted therapies have developed rapidly over the last few years in the field of oncology thanks to a better understanding of carcinogenesis. They target pathways involved in signal transduction (EGFR, HER2, HER3, HER4, FLT3, RAS, RAF, MEK, KIT, RET, mTOR, SRC, EPH, SCF), tumor angiogenesis (VEGFR, TIE2), and tumor microenvironment (PDGFR, FGFR). They rarely cause the systemic adverse reactions generally associated with chemotherapy, but frequently cause disabling and specific skin toxicity. The impact on patient quality of life can be important both in terms of symptoms caused and of potentially aesthetic consequences. Inappropriate management can increase the risk of dose reduction or discontinuation of the cancer treatment. In this review, we will discuss skin toxicity associated with the main drug classes-EGFR, BRAF, MEK, mTOR, c-KIT, CTLA4, and SMO inhibitors, and anti-angiogenic agents. Targeted therapy-induced skin toxicities will be detailed in terms of symptoms, frequency, evolution, complications, and topical and oral treatments in order to improve their diagnosis and management.