Clinical presentation and management of dermatological toxicities of epidermal growth factor receptor inhibitors

Quality of Life Impact in Patients with Cutaneous Toxicities Caused by Epidermal Growth Factor Receptor Inhibitors and Immunotherapy

BACKGROUND

Novel oncologic therapies, including epidermal growth factor receptor inhibitors (EGFR-Is) and immune checkpoint inhibitors (ICIs), are associated with a new spectrum of adverse reactions, with prominent cutaneous toxicities. The impact of cutaneous adverse events (cAEs) on patients' quality of life (QoL) represents an unmet clinical need.

OBJECTIVES

The aims of this study were (1) to assess whether cutaneous toxicities directed therapies are effective in reducing the QoL burden via the submission of 2 patient reported outcome measures (PROMs); (2) to investigate whether class of oncologic therapy, type of cAE and toxicity severity differently impact on patients' QoL.

METHODS

A prospective observational study was conducted at the Dermatology department of the Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy, from October 2018 to October 2019. Patients aged ≥18 years, under therapy with EGFR-Is or ICIs and experiencing a treatment-related cAE were eligible for the study. Dermatology Life Quality Index (DLQI) and European Organization for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 version 3.0 (EORTC QLQ-C30) were administered to patients at first clinical visit (T0), at 1-month (T1), and at 3-month (T2) dermatological follow-up.

RESULTS

Sixty cAEs of 51 patients have been recorded. A significant difference in the mean score for both DLQI and EORTC QLQ-C30 was found along the 3-months dermatological follow-up (p < 0.0001). A similar QoL improvement was reported for PROMs stratified by class of therapy and toxicity severity (p < 0.0001). No difference was reported for patients with pyogenic granuloma-like lesions and psoriasiform eruption as per DLQI. Class of therapy and toxicity severity did not differently impact on patients' QoL at selected timepoints; we reported a higher EORTC QLQ-C30 score at T2 for patients developing psoriasiform eruption compared to other types of cAEs.

CONCLUSIONS

Early patients' referral to dermatologists and tailored management could result in better QoL.

Cutaneous adverse reactions resulting from targeted cancer therapies: histopathologic and clinical findings

Targeted cancer treatments-designed to interfere with specific molecular signals responsible for tumor survival and progression-have shown benefit over conventional chemotherapies but may lead to diverse cutaneous adverse effects. This review highlights clinically significant dermatologic toxicities and their associated histopathologic findings, resulting from various targeted cancer drugs. Case reports and series, clinical trials, reviews, and meta-analyses are included for analysis and summarized herein. Cutaneous side effects resulting from targeted cancer therapies were reported with incidences as high as 90% for certain medications, and reactions are often predictable based on mechanism(s) of action of a given drug. Common and important reaction patterns included: acneiform eruptions, neutrophilic dermatoses, hand-foot skin reaction, secondary cutaneous malignancies, and alopecia. Clinical and histopathologic recognition of these toxicities remains impactful for patient care.

Safety profile of tyrosine kinase inhibitors used in non-small-cell lung cancer: An analysis from the Italian pharmacovigilance database

Introduction

Non-small cell lung cancer (NSCLC) is often caused by molecular alterations that can be detected by predictive biomarkers including mutations or amplifications of several genes. Several tyrosine kinase inhibitors (TKIs) have been approved in Europe by the European Medicines Agency (EMA) for NSCLC. The aim of this study was to analyze the onset of adverse drug reactions (ADRs) related to TKIs in NSCLC through a spontaneous reporting system (SRS) database.

Methods

All ADR reports having as suspected drug afatinib (AFT), alectinib (ALEC), brigatinib (BRG), ceritinib (CER), crizotinib (CRIZ), erlotinib (ERL), gefitinib (GEF), lorlatinib (LORL), nintedanib (NTB), and osimertinib (OSI) recorded into the Report Reazioni Avverse dei Medicinali (RAM) system database for national data and into the Italian SRS database for Sicilian data and collected from 2006 to 2021 have been evaluated. A descriptive analysis of basal demographic and drug-related characteristics was performed. A case-by-case methodology was conducted paying particular attention to all serious ADR reports collected in Sicily, focusing on type of seriousness, age, sex, concomitant drugs, and comorbidities.

Results

Of the 3,048 Italian reports, most of ADRs were related to ERL (n = 1,448), followed by AFT (n = 435) and GEF (n = 366). ADR reports were slightly more frequent in females (52.2%) and in the age group >65 years (53.0%). A higher number of cases were related to skin disorders (n = 1,766; 57.9%), followed by gastrointestinal disorders (n = 1,024; 33.6%), general disorders and administration site conditions (n = 536; 17.6%), and infections (n = 483; 15.8%). The case-by-case assessment of Sicilian ADRs showed that 33 cases were serious (12.5%) and mainly involved ERL (n = 17; 51.5%), occurring in males with a higher onset of respiratory diseases (30.3%) such as respiratory failure, interstitial lung disease and dyspnea.

Discussion

The analysis of spontaneous ADR reports of TKIs confirmed, in general, well-known risks, which often include skin, gastrointestinal, general, liver, and respiratory diseases as well as infections. However, more attention should be paid to the occurrence of serious life-threatening ADRs including respiratory failure, interstitial lung disease, and cardiogenic shock, especially in young patients.

Complications following novel therapies for non-small cell lung cancer

The emergence of tyrosine kinase inhibitors and immune checkpoint inhibitors has paved a new era for the management of non-small cell lung cancer, which has for many years lacked major clinical breakthroughs. Historically, 5-year overall survival remained below 5% in individuals with metastatic disease. These novel treatments have led to significant prolongation of survival in the locally advanced and metastatic setting, exceeding 25% in selected populations. However, they present new challenges to clinicians due to their inherently different spectrum of toxicity unique to each specific drug's pharmacodynamic profile. Internists commonly come across these side effects in their daily clinical practice. Their optimal recognition and management are of utmost importance, because it is associated with significant improvements in patient survival outcomes and their quality of life. The aim of this review is to summarize the complications following these novel treatments for non-small cell lung cancer.

Osimertinib and Ramucirumab Induced Pyogenic Granulomas: A Possible Synergistic Effect of Dual Oncologic Therapy

Pyogenic granulomas represent benign vascular tumors that can present on the skin and mucous membranes. Multiple etiologic agents have been implicated in the pathogenesis including several systemic medications. Two notable oncologic therapies, epidermal growth factor receptor inhibitors and vascular endothelial growth factor receptor inhibitors, have each been associated with drug-induced pyogenic granulomas. We report a novel case report of dual therapy, medication-induced pyogenic granulomas. This likely represents a synergistic relationship between an epidermal growth factor receptor inhibitor, osimertinib, and a vascular endothelial growth factor receptor inhibitor, ramucirumab.

Incidence of Adverse Cutaneous Reactions to Epidermal Growth Factor Receptor Inhibitors in Patients with Non-Small-Cell Lung Cancer

BACKGROUND

Epidermal growth factor receptor (EGFR) inhibitors are routinely used in advanced non-small-cell lung cancer (NSCLC) harboring EGFR mutations. However, their use is associated with gastrointestinal and cutaneous toxicities, including acneiform eruptions, pruritus, xerosis, nail and hair changes. Aside from reducing patients' quality of life, such cutaneous reactions have a considerable impact on the oncologic treatment given that dose reduction or even drug discontinuation may be necessary, especially for the severe forms.

OBJECTIVES

To assess the incidence, impact on treatment and management of EGFR inhibitor-related cutaneous reactions in patients with NSCLC.

METHODS

We conducted a prospective observational study on 87 consecutive patients with advanced NSCLC treated with EGFR-tyrosine kinase inhibitors from January to December 2019. Patients who developed mucocutaneous reactions were evaluated and treated by both oncologists and dermatologists, and underwent dermatologic follow-up until resolution of the cutaneous reaction. Demographic and clinical data were collected for each patient, and the severity of the cutaneous reaction was graded using the Common Terminology Criteria for Adverse Events.

RESULTS

Seventy-one patients (81.6%) developed cutaneous reactions. The number of cutaneous reactions per patient was 1 in 37%, 2 in 41% and 3 or more in 22%. The most common cutaneous reactions included acneiform eruptions (56.3%), xerosis ± asteatotic eczema (48.3%), nail changes (39.1%), mucositis (29.9%), pruritus (24.1%) and hair changes (12.6%). Afatinib was associated with a higher rate of nail changes and mucositis (p < 0.01 and p < 0.005, respectively) compared to other agents, while no patient-related predictive factors were identified. Dose reduction was performed in 18% of patients. Multidisciplinary management involving dermatologists allowed to resume the drug in all patients who had discontinued it due to the cutaneous reactions.

CONCLUSIONS

A multidisciplinary approach to EGFR inhibitor-related cutaneous reactions is advantageous and can reduce the need to discontinue oncologic treatment.

A Comprehensive Review of Contemporary Literature for Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors in Non-Small Cell Lung Cancer and Their Toxicity

Mutations in the epidermal growth factor receptor (EGFR) are common amongst those with non-small cell lung cancer and represent a major factor in treatment decisions, most notably in the advanced stages. Small molecule tyrosine kinase inhibitors (TKIs) that target the EGFR, such as erlotinib, gefitinib, icotinib, afatinib, dacomitinib and osimertinib, have all shown to be effective in this setting. Osimertinib, a third-generation EGFR TKI, is a favorable option, but almost all patients develop resistance at some time point. There are no effective treatment options for patients who progress on osimertinib, but ongoing trials will hopefully address this unmet need. The aim of this review is to provide a comprehensive review of the data with EGFR TKIs, management of the toxicities and the ongoing trials with this class of agents.

Using betaxolol for the prevention of paronychia induced by epidermal growth factor receptor inhibitors: a case-control cohort study

BACKGROUND

High rates of posttreatment discomfort, infection, recurrence, and increased time to return to work have been noted after nail plate avulsion resulting from epidermal growth factor receptor tyrosine kinase inhibitor(EGFR-TKI)-induced paronychia, which may even interrupt the course of treatment for EGFR-TKI therapy. Thus, we conducted this study to determine how effectively a topical β-blocker, betaxolol, prevents EGFR-TKI-induced paronychia.

METHODS

This case-control cohort study included a total of 131 non-small-cell lung cancer patients. The prevention group comprised 40 patients treated with topical betaxolol 0.25% solution to prevent paronychia while they received EGFR-TKI therapy. The control group comprised 91 patients who did not preventively use topical betaxolol 0.25% solution while receiving EGFR-TKI therapy. The patients' age, gender, antineoplastic regimen, duration of antineoplastic treatment before the appearance of lesions, number of involved digits (fingernails or toenails) with lesions, grading of paronychia, and pain score were recorded.

RESULTS

In terms of the cumulative incidence of paronychia, significant differences (P < 0.01) were noted at both the 2nd and 3rd months after starting EGFR-TKIs. Furthermore, the average visual analogue scale scores were 3.125 and 6.29 in the prevention group and control group, respectively (P < 0.01). The average grades of paronychia were 1.5 and 2.12 in the prevention group and control group, respectively (P < 0.01). The average numbers of involved digits were 2.25 (range: 1-5 digits) in the prevention group and 3.03 (range: 1-7) in the control group (P = 0.07).

CONCLUSIONS

Preventively using topical betaxolol can significantly decrease the incidence, VAS score, and grading of EGFR-TKI-induced paronychia.

Panitumumab Induced Forearm Panniculitis in Two Women With Metastatic Colon Cancer

BACKGROUND

Panitumumab is an EGFR inhibitor used for the treatment of metastatic colorectal cancer (mCRC), even if its use is related to skin toxicity.

CASE PRESENTATION

We report the development of forearm panniculitis in two women during the treatment with Panitumumab (6 mg/Kg intravenous every 2 weeks) + FOLFOX-6 (leucovorin, 5- fluorouracil, and oxaliplatin at higher dosage) for the treatment of mCRC.

RESULTS

In both patients, clinical, laboratory and radiological evaluation documented the presence of a local panniculitis, probably related to panitumumab (Naranjo score: 6). Panatimumab discontinuation and antimicrobial + corticosteroid treatment induced a remission of skin manifestations.

CONCLUSION

We reported for the first time the development of panniculitis during Panitumumab treatment, and we documented that the treatment with beta-lactams to either fluoroquinolones or oxazolidinone in the presence of corticosteroid improves clinical symptoms in young patients with mCRC, without the development of adverse drug reactions or drug-drug interactions.

Efficacy of topical beta-blockers in the management of EGFR-inhibitor induced paronychia and pyogenic granuloma-like lesions: case series and review of the literature

Nail toxicities, such as paronychia and pyogenic granuloma-like lesions, are well-recognized side effects of epidermal growth factor receptor inhibitor (EGFR-I) therapy that can significantly impair patient’s quality of life and compliance to anticancer treatment. Numerous therapeutic options are available, with variable rates of success. Recently, topical β-blockers have emerged as a novel, non-invasive treatment strategy. We tested the effectiveness of topical timolol 0.5% gel, twice daily, under occlusion for 30 days, on paronychia and periungual pyogenic granuloma-like lesions in 9 patients being treated with EGFR-I. We also reviewed the available literature on this topic, which is the use of topical β-blockers in the management of EGFR-I-induced nail toxicities. We assessed 25 lesions consistent with the diagnosis of EGFR-I-induced pyogenic granuloma-like lesions and paronychia (21 diagnosed as pyogenic granuloma-like, and four as paronychia). Thirteen of the 25 lesions achieved complete resolution, 9/25 reached at least improvement, and only 3/25 did not respond to the intervention. As for the review, four papers met the scope of our research. The results confirmed at least partial benefit in the majority of treated patients. Among current strategies, high-potency topical corticosteroids are a well-known treatment option especially for paronychia, targeting the inflammatory component of such lesions; nevertheless, the management of pyogenic granuloma-like lesion is often more complex and the success rate is variable. Nail plate avulsion and phenol chemical matricectomy are not highly effective and display some degree of invasiveness. Topical β-blockers seem to be promising alternatives, especially in fragile cancer patients who may be unsuitable candidates for an invasive procedure.

A bispecific nanobody approach to leverage the potent and widely applicable tumor cytolytic capacity of Vγ9Vδ2-T cells

Though Vγ9Vδ2-T cells constitute only a small fraction of the total T cell population in human peripheral blood, they play a vital role in tumor defense and are therefore of major interest to explore for cancer immunotherapy. Vγ9Vδ2-T cell-based cancer immunotherapeutic approaches developed so far have been generally well tolerated and were able to induce significant clinical responses. However, overall results were inconsistent, possibly due to the fact that these strategies induced systemic activation of Vγ9Vδ2-T cells without preferential accumulation and targeted activation in the tumor. Here we show that a novel bispecific nanobody-based construct targeting both Vγ9Vδ2-T cells and EGFR induced potent Vγ9Vδ2-T cell activation and subsequent tumor cell lysis both in vitro and in an in vivo mouse xenograft model. Tumor cell lysis was independent of KRAS and BRAF tumor mutation status and common Vγ9Vδ2-T cell receptor sequence variations. In combination with the conserved monomorphic nature of the Vγ9Vδ2-TCR and the facile replacement of the tumor-specific nanobody, this immunotherapeutic approach can be applied to a large group of cancer patients.

Nursing Management of Cutaneous Toxicities From Epidermal Growth Factor Receptor Inhibitors

BACKGROUND

Personalized targeted therapies have become an emerging paradigm in cancer treatment. Although generally more tolerable than other chemotherapeutic agents, one therapy, epidermal growth factor receptor inhibitors (EGFRIs), commonly results in the formation of cutaneous toxicities, which can negatively affect patients' treatment adherence and quality of life.

OBJECTIVES

The aim of this article is to review nursing management strategies for EGFRI-related cutaneous toxicities.

METHODS

A systematic literature review was performed, including database searches in PubMed/MEDLINE®, CINAHL®, Cochrane Library, PsycINFO®, and Web of Science.

FINDINGS

Nurses are essential to the management of EGFRI-related cutaneous toxicities and are in an ideal position to provide supportive care throughout the course of the EGFRI treatment. The aim of nursing management is to maintain patients' treatment adherence and quality of life by employing a preemptive and proactive approach. Patient education is the most frequently reported management strategy. However, treatment options and management strategies are largely anecdotal and based on individual reports and expert opinions. Although no evidence-based management strategies exist, nurses can rely on existing assessment tools and guidelines to provide patients with symptom management and supportive care.

Erlotinib induced ectropion following papulopustular rash

BACKGROUND

Erlotinib is a targeted anti-cancer drug which acts through the inhibition of epidermal growth factor receptor (EGFR).

MAIN OBSERVATIONS

A 79-year-old developed bilateral ectropion after he received erlotinib treatment for lung adenocarcinoma. The ectropion completely resolved with symptomatic treatment without any modification in erlotinib therapy.

CONCLUSIONS

EGFR inhibitors are frequently associated with a variety of mucocutaneous adverse events. Ocular toxicity associated with these agents has been reported rarely. We present this case to underline the importance of recognition of newly reported cutaneous and ocular adverse events of targeted therapies.

Xerosis and pruritus as major EGFRI-associated adverse events

Purpose

The objective of this sub-analysis of the BeCet study (NCT01136005) was to examine health-related quality of life (HRQoL) of patients experiencing dermatological adverse events (AEs) during the first 6 weeks of epidermal growth factor receptor inhibitor (EGFRI) treatment.

Methods

Patients (n = 85) treated with EGFRI completed five questionnaires during the first 6 weeks of treatment. 77 patients provided enough data for the sub-analysis. Experienced AEs were reported in the Dermatological Reactions Targeted Therapy–Patients (DERETT-P), a symptom experience diary for patients treated with targeted therapy. The impact of EGFRI-associated dermatological adverse events on HRQoL was examined using four HRQoL questionnaires; the Functional Assessment of Cancer Therapy–EGFRI (FACT-EGFRI-18), the Functional Assessment of Cancer Therapy–General (FACT-G), the 36-Item Short Form Health Survey (SF-36), and the Skindex-16.

Results

During the first 6 weeks of EGFRI treatment, physical discomfort was the most significantly affected domain. In the entire study population, xerosis (dry skin) (22.3 %) and pruritus (itchy skin) (16.9 %) were reported as the most impactful AEs. For patients experiencing a papulopustular eruption (acneiform rash) pruritus (24.2 %), xerosis (18.9 %), and papulopustular eruption (6.3 %) were reported as the most impactful AEs. Papulopustular eruption, xerosis, and pruritus all showed a significant negative effect on HRQoL, displayed in FACT-EGFRI-18 scores.

Conclusions

In addition to papulopustular eruption, xerosis and pruritus are major EGFRI-associated dermatological AEs with an impact on HRQoL, which warrant more attention in clinical practice and research.

Epidermal growth factor receptor inhibitors related trichomegaly of Eyelashes

Advances in understanding of the mechanisms involved in oncogenesis have led to the development of targeted therapies such as epidermal growth factor receptor inhibitors (EGFRIs), targeting a variety of molecular structures and able to inhibit aberrantly activated oncogenic pathways. Their use made treatment more tolerable with significant reduction of systemic adverse effects. However, EGFRIs are associated with toxicities affecting the skin and adnexal structures that affect the majority of treated patients. Trichomegaly of eyelashes is a unique side-effect, seen in prolonged treatment with EGFRI. It is essential to be familiar with this adverse effect, its potential complications, long-term sequelae, and available effective treatment strategy in order to appropriately manage these patients.

Skin toxicity predicts efficacy to sorafenib in patients with advanced hepatocellular carcinoma

AIM: To study the relationship between adverse events (AEs), efficacy, and nursing intervention for sorafenib therapy in patients with hepatocellular carcinoma (HCC).

METHODS: We enrolled 37 consecutive patients with advanced HCC who received sorafenib therapy. Relationships among baseline characteristics as well as AE occurrence and tumor response, overall survival (OS), and treatment duration were analyzed. The nursing intervention program consisted of education regarding self-monitoring and AEs management, and telephone follow-up was provided once in 1-2 wk.

RESULTS: A total of 37 patients were enrolled in the study, comprising 30 males (81%) with a median age of 71 years. The disease control rate at 3 mo was 41%, and the median OS and treatment duration were 259 and 108 d, respectively. Nursing intervention was given to 24 patients (65%). Every patient exhibited some kinds of AEs, but no patients experienced G4 AEs. Frequently observed AEs > G2 included anorexia (57%), skin toxicity (57%), and fatigue (54%). Factors significantly associated with longer OS in multivariate analysis demonstrated that age ≤ 70 years, presence of > G2 skin toxicity, and absence of > G2 hypoalbuminemia. The disease control rate in patients with > G2 skin toxicity was 13/20 (65%), which was significantly higher compared with that in patients with no or G1 skin toxicity. Multivariate analysis revealed that nursing intervention and > G2 skin toxicity were independent significant predictors for longer treatment duration.

CONCLUSION: Skin toxicity was associated with favorable outcomes with sorafenib therapy for advanced HCC. Nursing intervention contributed to better adherence, which may improve the efficacy of sorafenib.

Overview and management of dermatologic events associated with targeted therapies for medullary thyroid cancer

BACKGROUND

Treatment options for patients with advanced or metastatic medullary thyroid cancer (MTC) have, in recent years, expanded with the approval of two tyrosine kinase inhibitors (TKIs): vandetanib and cabozantinib. Other agents, including TKIs, are under clinical investigation for MTC. Although patients treated with TKIs are at risk of developing dermatologic adverse events (AE), these untoward events may be mitigated through AE-driven algorithms.

SUMMARY

AE-driven algorithms combine effective nonpharmaceutical and pharmaceutical treatment modalities implemented by a multidisciplinary effort that incorporates nursing interventions, patient education, and referrals to pain-management specialists, podiatrists, and dermatologists, as appropriate. Effective AE prevention and management reduce the need for dose interruptions and modifications, allowing patients the opportunity to derive the maximal benefit from TKI therapy, while maintaining quality of life.

CONCLUSIONS

Optimal use of targeted therapies in the treatment of MTC depends on careful patient selection, interdisciplinary communication, and patient education and encouragement to enhance compliance and safety, optimize consistent dosing, and maximize the use of effective therapies.

Managing skin toxicities related to panitumumab

BACKGROUND

Dermatologic toxicities from targeted agents such as panitumumab can interfere with cancer treatment.

OBJECTIVE

We sought to evaluate the rash assessment and management in a consecutive patient cohort who received panitumumab for colorectal cancer treatment.

METHODS

This was a retrospective chart review.

RESULTS

Skin toxicity, consisting of papulopustular rash, was experienced by 32 of 34 patients. The majority (85%) developed the rash by the end of the second infusion cycle. Patients presented with a mild (41%), moderate (38%), and severe (21%) rash, and progressed to an extensive rash without appropriate treatment. A grading system was used for 65% of patients to document severity.

LIMITATIONS

Small sample size limited power in analysis. Rash severity had to be inferred based on rash description and management in 11 of the patients.

CONCLUSION

Dermatologic toxicities related to panitumumab are common; however, the way they are reported and managed varies among physicians. To prevent progression, toxicities must be assessed and treated early and aggressively, according to severity grading. Dermatologists could aid oncologists in choosing the best management strategies.

Randomized double-blind trial of prophylactic topical Evozac(®) Calming Skin Spray for gefitinib-associated acne-like eruption

Background

“Gefitinib” is a first-generation epidermal growth factor receptor tyrosine-kinase inhibitor. More than half of patients receiving gefitinib develop acne-like eruption. Evozac^® Calming Skin Spray (Evaux Laboratoires, Évaux-les-Bains, France) is made of Évaux thermal spring water and commonly used for the treatment of dermatological toxicities caused by anti-epidermal growth factor receptor therapy. The aim of the study reported here was to test the effect of Evozac Calming Skin Spray on the prevention of rash in patients receiving gefitinib.

Methods

Non-small-cell lung cancer patients preparing to initiate gefitinib therapy were randomly assigned to apply Evozac Calming Skin Spray or physiological saline to the face three times a day. The treatment was started on the same day as initiation of gefitinib therapy and continued for 4 weeks.

Results

A total of 51 patients in the Evozac Calming Skin Spray group and 50 patients in the physiological saline group completed the study per the protocol. The number of facial lesions peaked at the end of 3 weeks in both groups. There were significantly fewer lesions in the Evozac Calming Skin Spray group than in the physiological saline group at the end of 1 week (0.25 versus [vs] 1.10, P=0.031) and 3 weeks (6.67 vs 12.26, P=0.022). Patients from the Evozac Calming Skin Spray group also developed fewer facial lesions at the end of 2 weeks and 4 weeks, however, the difference was not statistically significant. At the end of 4 weeks, fewer patients from the Evozac Calming Skin Spray group developed rash of grade 2 or greater severity (17.6% vs 36.0%, P=0.037), or experienced rash-associated symptoms (13.7% vs 34.0%, P=0.017).

Conclusion

Prophylactic treatment with Evozac Calming Skin Spray appears to decrease the number of facial lesions at the peak of the rash, reduce the incidence of grade 2 or more severe rash and relieve rash-associated symptoms.

Epidermal growth factor receptor signalling in keratinocyte biology: implications for skin toxicity of tyrosine kinase inhibitors

The epidermal growth factor receptor (EGFR) and its ligands have been long recognized as centrally involved in the growth and repair process of epithelia, as well as in carcinogenesis. In addition, the EGFR has been demonstrated to be importantly involved in the control of inflammatory responses. During this last decade, a number of highly specific agents targeting this system have become an integral component of pharmacologic strategies against many solid malignancies. These drugs have led to increased patient survival and made therapy more tolerant when compared to conventional cytotoxic drugs. Nonetheless, their use is associated with a constellation of toxic effects on the skin, including follicular pustules, persistent inflammation, xerosis and pruritus, and enhanced susceptibility to infections. This dramatic impairment of skin homoeostasis underscores the centrality of the EGFR-ligand system in the whole skin immune system. So far, no mechanism-based approaches are available to specifically counteract the adverse effects of anti-EGFR drugs or any other class of tyrosine kinase inhibitors. Only the knowledge of the cellular and molecular events underlying these adverse effects in humans, combined with in vitro/in vivo models able to mimic these toxic responses, may guide the development of mechanism-based treatment or prevention strategies.

Randomized controlled trial to evaluate the effects of ethyl-2-cyanoacrylate on pain intensity and quality of life in head and neck cancer patients suffering from cetuximab-induced rhagades during radioimmunotherapy: the support trial

Background

Cetuximab is a chimeric monoclonal antibody against the epidermal growth factor receptor (EGFR). Skin reactions are the most common side effects of cetuximab. Rhagades of the tips of the fingers and toes, the heels and especially the interphalangeal joints are one of the most frightening and painful dermatological side effects that may develop from EGFR-inhibitor therapy. Rhagades are characterized by pain, severe tenderness and poor healing response. They are challenging to treat. Thus, rhagades often poses the most significant threat to the quality of life (QoL) for these patients. Ethyl-2-cyanoacrylate (ECA), an ethyl ester of the 2-cyano-2-propenoic acid, is often used as adhesive in a variety of different work settings in industry, i.e. as a component in nail-care products such as nail glue. In addition, ECA is used for various medical indications, such as for liquid bandages and for suture-less surgery. Wound healing can be accelerated with ECA. The purpose of the SUPPORT trial is to investigate the efficacy of ECA for the treatment of cetuximab-induced rhagades and to assess the clinical usefulness of the SUPO score, a new classification system for rhagades induced by EGFR-inhibitor therapy.

Methods/Design

The SUPPORT trial is an open-label, prospective, randomized, national multicenter intervention study to evaluate the effectiveness of ECA versus the standard treatment of each institution on the pain intensity and QoL in patients with locally advanced head and neck cancer suffering from painful cetuximab-induced rhagades during radioimmunotherapy. Primary endpoint is the assessment of the pain intensity 24 hours after application of ECA or the standard treatment quantified by the visual analogue scale (VAS). Secondary endpoints are the evaluation of QoL assessed by the EORTC-QoL-C30 questionnaire and the Dermatological Life Quality Index (DLQI).

Discussion

During treatment with EGFR inhibitors it is necessary to recognize and manage side effects promptly to assure better patient QoL. The SUPPORT trial is the first randomized clinical trial evaluating a new treatment option for painful cetuximab-induced rhagades. Furthermore, the new SUPO score will be prospectively assessed in terms of clinical usefulness for classification of EGFR inhibitor-induced rhagades.

Trial registration

Current Controlled Trials NCT01693159.

Management of dermatologic toxicities associated with monoclonal antibody epidermal growth factor receptor inhibitors: A case review

INTRODUCTION

The epidermal growth factor receptor inhibitors (EGFRIs), cetuximab and panitumumab, represent an effective treatment option for patients affected by metastatic colorectal cancer (mCRC); furthermore, they are relatively devoid of systemic toxicities, which are commonly observed with standard cytotoxic chemotherapy. However, the majority of patients treated with these monoclonal antibodies (mAbs), will experience dermatologic toxicities, most notably the papulopustular skin rash, which can impact quality-of-life and affect adherence to therapy. This paper reviews the most recent practices in the management of skin rash related to anti-epidermal growth factor receptor (EGFR) mAbs, cetuximab and panitumumab, in the treatment of mCRC.

MATERIALS AND METHODS

We reviewed relevant literature regarding dermatologic toxicities associated with anti-EGFR mAbs in order to give important indications about prevention and reactive treatment of skin rash.

RESULTS

Two case reports were presented to show how skin rash could hamper mAb EGFRIs use in clinical practice, underscoring the need of implementing a comprehensive management strategy of skin toxicity in order to promote patients' compliance with anti-EGFR therapy and maintain quality-of-life. Based on randomized data, recent guidelines established by the Multinational Association for Supportive Care in Cancer Skin Toxicity Study Group suggest that prophylactic use of oral doxycycline or minocycline reduces the risk and severity of skin rash, improving clinical outcomes.

CONCLUSIONS

At the start of treatment with cetuximab and panitumumab, the proper patient education about the skin rash associated with these mAbs and the implementation of a pre-emptive, comprehensive skin toxicity program significantly contribute to improve adherence to therapy, optimize anti-EGFR therapy and maintain quality-of-life.

Dermatologic toxicities to targeted cancer therapy: shared clinical and histologic adverse skin reactions

BACKGROUND

Dermatologic toxicities (DT) to targeted cancer therapy may present as inflammatory dermatoses, keratoses, and as benign and malignant squamous proliferations.

METHODS

Published reports of DT with cancer therapy with epidermal growth factor receptor (EGFR), tyrosine kinase (TK), MEK, PI3K, AKT, and BRAF inhibitors were reviewed.

RESULTS

DT associated with targeted cancer therapy demonstrated similar reactions and may be grouped as (i) DT as cutaneous inflammation, and (ii) DT as cutaneous epithelial proliferation. EGFR inhibitor, cetuximab, and MEK inhibitors, selumetinib and trametinib, demonstrated papulopustular rash with a suppurative folliculitis in 83%, 93%, and 80% of the patients on therapy, respectively. Common DT with EGFR inhibitors erlotinib and tyrosine kinase inhibitor sorafenib were hand-foot skin reactions in 30-60% of patients on therapy. PI3K inhibitor BKM-120 and AKT inhibitor MK2206 produced maculopapular eruptions seen as dermal hypersensitivity reaction on the skin biopsy. RAF inhibitors vemurafenib and sorafenib were associated with a variety of cutaneous epithelial proliferations (keratosis pilaris, seborrheic keratosis, verruca vulgaris, actinic keratosis, keratoacanthoma, and squamous cell carcinoma.

CONCLUSION

Various anticancer agents may target similar cellular compounds and/or cell signaling pathways thus share similar clinical and histologic features of DT. The knowledge of the overlap of DT with different types of targeted cancer therapy will assist in evaluation of cutaneous reactions.

Translation and linguistic validation of the FACT-EGFRI-18 quality of life instrument from English into Dutch

PURPOSE

The Functional Assessment of Cancer Therapy-Epidermal Growth Factor Receptor Inhibitor 18 (FACT-EGFRI-18) is a patient-reported outcomes questionnaire developed to assess the effect of EGFRI on patients. The FACT-EGFR-18 was translated into Dutch and evaluated in order to document that the translation adequately captures the concepts of the original English-language version of the questionnaire and is readily understood by subjects in the target population.

METHOD

Translation of the FACT-EGFRI-18 from English to Dutch was accomplished by employing the Functional Assessment of Chronic Illness Therapy (FACIT) multilingual translation methodology. Ten native-speaking residents of the target country who reported EGFRI associated dermatological adverse events (dAEs) were asked to review the translation of the harmonized FACT-EGFRI-18.

RESULTS

Participants generally found the Dutch FACT-EGFRI-18 easy to understand and complete. In addition, the translation retained the original meaning of the FACT-EGFRI-18 items and instructions. Based on the results of the cognitive debriefing interviews, no changes to improve clarity and comprehension of translations were identified.

CONCLUSIONS

The Dutch FACT-EGFRI-18 demonstrates content validity and linguistic validity, and was found conceptually equivalent to its English source, thus confirming linguistic validation. The results suggest that the Dutch FACT-EGFRI-18 can be applied to measure dAE related health related quality of life in Dutch-speaking patients undergoing EGFRI therapy. Formal validation of the Dutch FACT-EGFRI-18 is ongoing.

Experiences with the FACT-EGFRI-18 instrument in EGFRI-associated mucocutaneous adverse events

PURPOSE

The functional assessment of cancer therapy epidermal growth factor receptor inhibitor 18 (FACT-EGFRI-18) is a patient-reported outcomes questionnaire developed to assess the effect of EGFRI on health-related quality of life (HRQoL).

METHODS

Ten native-speaking residents of The Netherlands who reported EGFRI-associated mucocutaneous adverse events (mcAEs) were administered the questionnaire. Patients were subsequently asked a standardized series of questions about the items' personal relevance.

RESULTS

Responses reflected a major negative impact of mcAEs due to EGFRI on physical, social/emotional, and functional domains. In some cases, especially in the social/emotional domain, the responses to the qualitative interview indicated a greater impact on HRQoL than the numerical ratings previously selected for the Dutch FACT-EGFRI-18 questions.

CONCLUSIONS

Based on these interviews, we identified that the physical items associated with mcAEs interfere most with HRQoL. The results suggest that the FACT-EGFRI-18 can be applied to measure mcAE-related HRQoL in cancer patients undergoing EGFRI therapy. In addition, patients feel the need to rate their symptom burden, too, and we recommend additional adverse event items to be incorporated into the questionnaire.

Clinical practice guidelines for the prevention and treatment of EGFR inhibitor-associated dermatologic toxicities

Background

Epidermal growth factor receptor inhibitors (EGFRI) produce various dermatologic side effects in the majority of patients, and guidelines are crucial for the prevention and treatment of these untoward events. The purpose of this panel was to develop evidence-based recommendations for EGFRI-associated dermatologic toxicities.

Methods

A multinational, interdisciplinary panel of experts in supportive care in cancer reviewed pertinent studies using established criteria in order to develop first-generation recommendations for EGFRI-associated dermatologic toxicities.

Results

Prophylactic and reactive recommendations for papulopustular (acneiform) rash, hair changes, radiation dermatitis, pruritus, mucositis, xerosis/fissures, and paronychia are presented, as well as general dermatologic recommendations when possible.

Conclusion

Prevention and management of EGFRI-related dermatologic toxicities is critical to maintain patients’ health-related quality of life and dose intensity of antineoplastic regimens. More rigorous investigation of these toxicities is warranted to improve preventive and treatment strategies.

Electronic supplementary material

The online version of this article (doi:10.1007/s00520-011-1197-6) contains supplementary material, which is available to authorized users.