Dermatologic Adverse Events of Systemic Anticancer Therapies: Cytotoxic Chemotherapy, Targeted Therapy, and Immunotherapy

Incidence of hand-foot syndrome with protein kinase inhibitors in advanced hepatocellular carcinoma patients who received atezolizumab-bevacizumab combination

INTRODUCTION

Treatment of advanced HepatoCellular Carcinoma (HCC) is based on first-line (L1) combination of atezolizumab and high-dose (HD) bevacizumab while second-line (L2) refers one antiangiogenic protein kinase inhibitors (aaPKI). This prolonged antiangiogenic pressure let us to observe an increasing occurrence of Hand-Foot Syndromes (HFS) in patients receiving aaPKI after HD bevacizumab combination. This study reports observations and discussions about the evidence and hypothesis that could be made.

METHODS

Patients who received the L1 combination from September 1st 2020 to December 31st 2022 to identify L2 aaPKI. Demographic, biological, oncological data and occurrence of HFS were collected. In addition were collected the number of L1 combination cycles, type of aaPKI, and delay between last L1 cycle and L2 initiation. This study had a purely exploratory purpose, so no statistical analysis was planned.

RESULTS

17 patients received an aaPKI after the L1 HD bevacizumab combination with a median time of 26 days from last L1 cycle to L2 start. Five patients experienced HFS including grade 3 (n = 2) with sorafenib and cabozantinib. The HFS occurred with a median delay of 23 days (IQR: 21-28) from aaPKI start. Three patients experienced aaPKI-related dose-limiting toxicity.

CONCLUSIONS

Proportion of patients experienced HFS in our cohort did not differ from pivotal trials data and the sample size do not allow to conclude. Hypotheses include timing of aaPKI start in HCC treatment, vascular toxicity at aaPKI start after HD bevacizumab discontinuation instead combination, patient-related outcome for a better understanding of these aaPKI-related HFS post HD bevacizumab.

Acetyl tributyl citrate attenuates 5-fluorouracil-induced inflammation, oxidative stress, and apoptosis in human keratinocytes

5-Fluorouracil (5-FU) is a commonly used chemotherapy drug that effectively destroys cancer cells. Despite its widespread use and efficacy, it also presents considerable challenges, particularly with adverse effects on rapidly dividing normal cells, such as keratinocytes. These detrimental effects are attributed to inflammatory, oxidative, and apoptotic potentials, leading to severe skin disorders. Due to the lack of specific remedies for 5-FU-induced dermatological side effects, conventional treatments are applied instead, which provide limited relief and have drawbacks. This study investigated the impact of acetyl tributyl citrate (ATBC) in 5-FU-treated human keratinocytes. The findings indicated that ATBC substantially reduced inflammation caused by 5-FU, as demonstrated by nuclear translocation of nuclear factor kappa B and expression of its downstream genes, including tumor necrosis factor, interleukin 1 beta (IL1B), and IL6. ATBC also markedly decreased oxidative stress, indicated by reactive oxygen species levels and the antioxidant gene expression such as superoxide dismutase 1 (SOD1), SOD2, and heme oxygenase 1 in 5-FU-treated cells. Furthermore, ATBC attenuated 5-FU-induced apoptosis, as determined by lactate dehydrogenase release and Annexin V/propidium iodide flow cytometry, with the potential involvement of interferon-related genes. Following this, protein kinase C delta was predicted as a possible molecular target of ATBC. These findings propose ATBC as a therapeutic agent for managing the cutaneous side effects associated with 5-FU treatment.

Evaluation of the common skin diseases in patients with malignancies and the cutaneous side effects of cancer treatments

PURPOSE

The diversity of skin diseases in patients with malignancies leads to diagnostic difficulties and complicate cancer treatment. Furthermore, the increasing use of chemotherapy drugs and novel treatment regimens raises the risk of the development of various cutaneous side effects and the need for dermatologists during cancer management. We investigated the skin diseases in patients with malignancies and the cutaneous side effects of cancer treatments.

METHODS

Medical records of cancer patients evaluated in the Dermatology clinic between July 2018 and April 2023 were retrospectively reviewed.

RESULTS

This study included 872 cancer patients, 374 females and 498 males. Acute myeloid leukaemia was the most common malignancy, followed by multiple myeloma and invasive ductal breast carcinoma. Graft versus host disease was observed in 89 (10.2%) patients after stem cell transplantation and radiodermatitis developed in 16 (1.8%) patients. Maculopapular drug eruption and hand foot syndrome were the most common cutaneous side effects of chemotherapy drugs. Capecitabine was the most common etiologic agent in hand foot syndrome. Cellulitis was the most frequent bacterial infection in cancer patients, whereas herpes zoster was the most frequent viral infection. Among the chemotherapy drugs that caused acneiform drug eruption, cetuximab and cytarabine were notable. Facial erythema was associated with cytarabine use in 27.3% of patients.

CONCLUSION

Identifying the common skin diseases in cancer patients and cutaneous side effects due to chemotherapy drugs may help to take preventive measures, develop specific and effective treatments, determine the most appropriate cancer treatment options, and increase patients' compliance with cancer treatment.

Availability of Cranial Prostheses for Black Patients at Comprehensive Cancer Centers

PURPOSE

For patients who seek to camouflage cancer-related hair loss, cranial prostheses such as wigs and hair pieces exist. We sought to determine the availability of yaki-textured, type IV curls, and afro wigs at boutiques in Comprehensive Cancer Centers (CCCs).

METHODS

The 56 CCCs in the United States were surveyed to see whether they had an affiliated wig boutique for patients experiencing hair loss. Boutique workers were then asked a series of seven questions regarding cranial prostheses options for patients seeking yaki-textured, type IV curls, and afro wigs. The availability of wigs was compared with US Census data on population size and density of Black residents.

RESULTS

Of the 56 CCCs, 27 (46%) institutions had active affiliated hair boutiques. We were able to reach 19 (70%) of the 27 boutiques, of which 53% (n = 10) offered yaki-textured wigs, 37% (n = 7) offered type IV curls or afro wigs, and 47% (n = 9) offered neither. Two additional boutiques offered in-store catalogs for Black patients who were interested in naturally appearing wigs. Although two institutions offered a wig bank that was free to all patients, neither had yaki-textured or afro wigs in stock. There was no significant relationship between population size or density of Black residents and availability of these wigs.

CONCLUSION

Many Black patients undergoing cancer treatment interested in cranial prosthesis do not have consistent access to wigs with textures comparable with type IV hair at CCCs. With increased inventory of racially inclusive wigs, partnerships with third-party vendors, and support for the previous authorization process, we can better support Black patients experiencing cancer-related hair loss.

Mucocutaneous toxicities from MEK inhibitors: a scoping review of the literature

BACKGROUND

MEK inhibitors cause a wide spectrum of mucocutaneous toxicities which can delay or interrupt life-saving therapy.

PURPOSE

To summarize the morphology, incidence, and clinical presentation of mucocutaneous toxicities from MEK inhibitors via a scoping review of the literature.

METHODS

We conducted a scoping review of the published literature, including clinical trials, retrospective and prospective studies, reviews, and case reports and series. All included literature was analyzed by a panel of pediatric and adult oncodermatologists.

RESULTS

Of 1626 initial citations, 227 articles met final inclusion criteria. Our review identified follicular reactions, ocular toxicities, xerosis, eczematous dermatitis, edema, and paronychia as the most common mucocutaneous side effects from MEK inhibitor therapy. Grade 1 and 2 reactions were the most prevalent and were typically managed while continuing treatment; however, grade 3 toxicities requiring dose reductions or treatment interruptions were also reported.

CONCLUSION

Mucocutaneous toxicities to MEK inhibitor therapy are common and most often mild in severity. Early recognition and treatment can mitigate disruptions in oncologic therapy.

Characterizing immune checkpoint inhibitor-related cutaneous adverse reactions: A comprehensive analysis of FDA adverse event reporting system (FAERS) database

Background

The increasing adoption of immune checkpoint inhibitors (ICIs) in clinical settings highlights their efficacy in treating diverse conditions, while also emphasizing the potential for common cutaneous adverse reactions to arise. The aim of this study is to investigate a multitude of impacting factors and determinants among patients presenting with ICI-associated cutaneous adverse reactions.

Methods

We conducted a comprehensive analysis of ICI-associated cutaneous adverse reactions using data from the FAERS. Our study spans from January 1, 2015, to March 31, 2023, focusing on ICIs, including anti-PD-1, anti-PD-L1, and anti-CTLA-4 agents.

Findings

Among the 334,293 reported irAR, 17,431 were identified as cutaneous adverse reactions (ARs). Predominant cutaneous ARs included rash (21.01 %), pruritus (11.22 %), and pemphigoid (3.90 %). Stevens-Johnson syndrome emerged as the most reported severe cutaneous adverse reaction (SCAR) (2.08 %). Anti-CTLA-4 agents exhibited higher cutaneous toxicity compared to anti-PD-1 and anti-PD-L1 agents. Anti-PD-1 agents demonstrated an elevated mortality rate. The combined use of ICIs with chemotherapy amplified the risk of SCAR and mortality. Targeted therapy was a risk factor for cutaneous ARs but was associated with reduced mortality. The median onset day for cutaneous toxicity was 21 days, while for SCAR, it was 23 days. Weight and age were identified as predictors of SCAR, cutaneous toxicity, and mortality. Skin cancer increased skin toxicity, while lung cancer heightened SCAR formation. The number of administered ICIs positively correlated with SCAR, skin toxicity, and mortality.

Interpretation

This study highlights the significance of early identification and effective management of cutaneous toxicities, along with personalized follow-up care, as essential strategies for minimizing risks and preventing treatment disruptions.

Management of Skin Toxicities in Cancer Treatment: An Australian/New Zealand Perspective

Cancer systemic therapeutics and radiotherapy are often associated with dermatological toxicities that may reduce patients' quality of life and impact their course of cancer treatment. These toxicities cover a wide range of conditions that can be complex to manage with increasing severity. This review provides details on twelve common dermatological toxicities encountered during cancer treatment and offers measures for their prevention and management, particularly in the Australian/New Zealand context where skincare requirements may differ to other regions due to higher cumulative sun damage caused by high ambient ultraviolet (UV) light exposure. Given the frequency of these dermatological toxicities, a proactive phase is envisaged where patients can actively try to prevent skin toxicities.

Advances in Foxp3+ regulatory T cells (Foxp3+ Treg) and key factors in digestive malignancies

Foxp3+ regulatory T cells (Foxp3+ Treg) play a role in regulating various types of tumors, but uncertainty still exists regarding the exact mechanism underlying Foxp3+ Treg activation in gastrointestinal malignancies. As of now, research has shown that Foxp3+ Treg expression, altered glucose metabolism, or a hypoxic tumor microenvironment all affect Foxp3+ Treg function in the bodies of tumor patients. Furthermore, it has been demonstrated that post-translational modifications are essential for mature Foxp3 to function properly. Additionally, a considerable number of non-coding RNAs (ncRNAs) have been implicated in the activation of the Foxp3 signaling pathway. These mechanisms regulating Foxp3 may one day serve as potential therapeutic targets for gastrointestinal malignancies. This review primarily focuses on the properties and capabilities of Foxp3 and Foxp3+Treg. It emphasizes the advancement of research on the regulatory mechanisms of Foxp3 in different malignant tumors of the digestive system, providing new insights for the exploration of anticancer treatments.

Defining D-irAEs: consensus-based disease definitions for the diagnosis of dermatologic adverse events from immune checkpoint inhibitor therapy

With an increasing number of patients eligible for immune checkpoint inhibitors, the incidence of immune-related adverse events (irAEs) is on the rise. Dermatologic immune-related adverse events (D-irAEs) are the most common and earliest to manifest, often with important downstream consequences for the patient. Current guidelines lack clarity in terms of diagnostic criteria for D-irAEs. The goal of this project is to better define D-irAE for the purposes of identification, diagnosis, and future study of this important group of diseases.The objectives of this project were to develop consensus guidance for an approach to D-irAEs including disease definitions and severity grading. Knowing that consensus among oncologists, dermatologists, and irAE subspecialists would be critical for usability, we formed a Dermatologic irAE Disease Definition Panel. The panel was composed of 34 experts, including oncologists, dermatologists, a rheumatologist, and an allergist/immunologist from 22 institutions across the USA and internationally. A modified Delphi consensus process was used, with two rounds of anonymous ratings by panelists and two virtual meetings to discuss areas of controversy. Panelists rated content for usability, appropriateness, and accuracy on 9-point scales in electronic surveys and provided free text comments. A working group aggregated survey responses and incorporated them into revised definitions. Consensus was based on numeric ratings using the RAND/UCLA Appropriateness Method with prespecified definitions.Following revisions based on panelist feedback, all items received consensus in the second round of ratings. Consensus definitions were achieved for 10 core D-irAE diagnoses: ICI-vitiligo, ICI-lichen planus, ICI-psoriasis, ICI-exanthem, ICI-bullous pemphigoid, ICI-Grover's, ICI-eczematous, ICI-eruptive atypical squamous proliferation, ICI-pruritus without rash, and ICI-erosive mucocutaneous. A standard evaluation for D-irAE was also found to reach consensus, with disease-specific exceptions detailed when necessary. Each disorder's description includes further details on disease subtypes, symptoms, supportive exam findings, and three levels of diagnostic certainty (definite, probable, and possible).These consensus-driven disease definitions standardize D-irAE classification in a useable framework for multiple disciplines and will be the foundation for future work. Given consensus on their accuracy and usability from a representative panel group, we anticipate that they can be used broadly across clinical and research settings.

Development of Tumor Markers for Breast Cancer Immunotherapy

Although breast cancer treatment has been developed remarkably in recent years, it remains the primary cause of death among women. Immune checkpoint blockade therapy has significantly altered the way breast cancer is treated, although not all patients benefit from the changes. At present, the most effective mechanism of immune checkpoint blockade application in malignant tumors is not clear and efficacy may be influenced by many factors, including host, tumor, and tumor microenvironment dynamics. Therefore, there is a pressing need for tumor immunomarkers that can be used to screen patients and help determine which of them would benefit from breast cancer immunotherapy. At present, no single tumor marker can predict treatment efficacy with sufficient accuracy. Multiple markers may be combined to more accurately pinpoint patients who will respond favorably to immune checkpoint blockade medication. In this review, we have examined the breast cancer treatments, developments in research on the role of tumor markers in maximizing the clinical efficacy of immune checkpoint inhibitors, prospects for the identification of novel therapeutic targets, and the creation of individualized treatment plans. We also discuss how tumor markers can provide guidance for clinical practice.

Assessing Excessive Keratinization in Acral Areas through Dermatoscopy with Cross-Polarization and Parallel-Polarization: A Dermatoscopic Keratinization Scale

Excessive epidermal hyperkeratosis in acral areas is a common occurrence in dermatology practice, with a notable prevalence of approximately 65% in the elderly, especially in plantar lesions. Hyperkeratosis, characterized by thickening of the stratum corneum, can have various causes, including chronic physical or chemical factors, genetic predispositions, immunological disorders, and pharmaceutical compounds. This condition can significantly impact mobility, increase the risk of falls, and reduce the overall quality of life, particularly in older individuals. Management often involves creams containing urea to soften hyperkeratotic areas. Currently, subjective visual evaluation is the gold standard for assessing hyperkeratosis severity, lacking precision and consistency. Therefore, our research group proposes a novel 6-point keratinization scale based on dermatoscopy with cross-polarization and parallel-polarization techniques. This scale provides a structured framework for objective assessment, aiding in treatment selection, duration determination, and monitoring disease progression. Its clinical utility extends to various dermatological conditions involving hyperkeratosis, making it a valuable tool in dermatology practice. This standardized approach enhances communication among healthcare professionals, ultimately improving patient care and research comparability in dermatology.

The role of dermocosmetics in the management of cancer-related skin toxicities: international expert consensus

Skin toxicities are very common in patients undergoing cancer treatment and have been found to occur with all types of cancer therapeutic interventions (cytotoxic chemotherapy, targeted therapies, immunotherapy, and radiotherapy). Further, skin toxicities can lead to interruption or even discontinuation of anticancer treatment in some patients, translating to suboptimal outcomes. Dermocosmetics (or cosmeceuticals)-defined as skincare solutions incorporating dermatologically active ingredients (beyond vehicle effects) that directly improve symptoms of various skin conditions-are increasingly being used in cancer care to prevent and manage skin toxicities. The active ingredients in these products have a measurable biological action in skin; they typically improve skin integrity (barrier function/hydration and other factors) while relieving skin symptoms. The Association Francophone des Soins Oncologiques de Support (AFSOS) and Multinational Association of Supportive Care in Cancer (MASCC) partnered to select a multidisciplinary group of healthcare professionals involved in the management of patients with cancer and skin toxicities. The group reviewed existing literature and created a summary of recommendations for managing these toxicities through online meetings and communication. In this publication, the group (1) reviews new skin toxicities seen with oncology drugs and (2) evaluates the role of dermocosmetics in improving patient outcomes and minimizing cancer treatment interruptions. We provide general recommendations for initiation and selection of skin care in all oncology patients as well as recommendations for what factors should be considered when using dermocosmetics in specific types of skin toxicities.

Shedding light on the management of acute radiation dermatitis: insight from the MASCC Oncodermatology study group

This paper highlights a collection of eleven recently published manuscripts on the prevention and management of acute radiation dermatitis. These meta-analyses provide additional evidence for the updated clinical practice guidelines by the Multinational Association of Supportive Care in Cancer (MASCC) Oncodermatology study group for prevention and management of acute radiation dermatitis. The collection of papers elucidate the currently available evidence on acute radiation dermatitis, highlighting consolidated knowledge, effective treatments, and proposed areas for future clinical trials. Overall, a total of 51 randomized controlled trials were retrieved and included for quantitative analysis of an initial systematic review of literature from 1946 to January 2023. Discussion of the clinical impact of various therapeutic interventions include: antiperspirant and deodorant use, barrier films and dressings, natural and miscellaneous agents, photobiomodulation therapy, topical corticosteroids, topical non-steroidal agents, skin hygiene and washing, as well as StrataXRT and Mepitel film in breast cancer patients. The comprehensive nature of the meta-analyses and their related findings may help reduce the discrepancies in in treatment of acute radiation dermatitis and facilitate consistency of therapeutic interventions employed in clinical practice worldwide.

Dermatologic complications in transplantation and cellular therapy for acute leukemia

Adoptive cellular immunotherapy, mainly hematopoietic stem cell transplant and CAR-T cell therapy have revolutionized treatment of patients with acute leukemia. Indications and inclusion criteria for these treatments have expanded in recent years. While these therapies are associated with significant improvements in disease response and overall survival, patients may experience adverse events from associated chemotherapy conditioning, engraftment, cytokine storm, supportive medications, and post-transplant maintenance targeted therapies. Supportive oncodermatology is a growing specialty to manage cutaneous toxicities resulting from the anti-cancer therapies. In this review, we summarize diagnosis and management of the common cutaneous adverse events including drug eruptions, graft-versus-host disease, neoplastic and paraneoplastic complications in patients undergoing cellular therapies.

Pathogenesis of Oral Toxicities Associated with Targeted Therapy and Immunotherapy

Targeted therapy and immunotherapy have redefined cancer treatment. While they have enhanced tumor response and improved survival rates in many cancer types, toxicities continue to occur, and these often involve the oral cavity. Broadly reported as "mucositis" or "stomatitis," oral toxicities induced by targeted therapies differ clinically and mechanistically from those associated with conventional chemotherapy. Manifesting primarily as mucosal lesions, salivary gland hypofunction, or orofacial neuropathies, these oral toxicities may nonetheless lead to significant morbidity and impact patients' quality of life, thereby compromising clinical outcomes. We conclude that familiarity with the spectrum of associated toxicities and understanding of their pathogenesis represent important areas of clinical research and may lead to better characterization, prevention, and management of these adverse events.

Evaluation of a novel skin care product for the management of chemotherapy-related dermatologic toxicities: A quasi-experimental study

PURPOSE

Evaluate the efficacy of a novel skincare product for the management of chemotherapy-related dermatological toxicities.

METHODS

A monocentric, prospective, interventional, open-label, pretest-posttest, single-group study with cancer patients receiving chemotherapy (n = 100) was set up. All enrolled patients applied the emollient daily to their face and body for three weeks. The severity of the skin reactions was evaluated by a researcher using the Common Terminology Criteria for Adverse Events (CTCAE) v5.0 at baseline and end of the trial. Patient-reported outcomes (PROs) included the frequency and severity of skin symptoms (Numerical rating scale, NRS), quality of life (QoL; Skindex-16 and Dermatology Life Quality Index), Patient Benefit Index (PBI), and treatment satisfaction. PROs were collected at baseline, weekly, and at the end of the trial.

RESULTS

According to the CTCAE and NRS, the novel emollient significantly improved the severity and frequency of xerosis and pruritus (Ps ≤ .001). A significant reduction in the NRS score for frequency of erythema was measured (p < .001). The frequency and severity of burning and pain did not change. Regarding the patients' QoL, no beneficial effect of the skin care product was measurable. 44% of the patients experienced at least one patient-relevant treatment benefit. 87% of the patients were satisfied with the emollient and would recommend it.

CONCLUSIONS

This study shows that the novel emollient significantly reduced chemotherapy-induced skin toxicity, more specifically xerosis and pruritus without hampering patient's QoL. Future research is needed to make definite conclusions using a study design including a control group and a long-term follow-up.

Use of Asynchronous Interprofessional e-Consults in Cancer Patients During the COVID-19 Pandemic: Current and Future Role

The COVID-19 pandemic created a unique challenge to health care systems, requiring rapid implementation of telemedicine services to provide continued care to patients while preserving personal protective equipment and decreasing the risk of disease transmission. Herein, we describe how our institution, an urban cancer center, utilized provider-to-provider telemedicine consultations (interprofessional e-consults) to provide subspecialty access to care to vulnerable patients in the epicenter of a global pandemic.

A Review of Bullous Dermatologic Adverse Events Associated with Anti-Cancer Therapy

The rapid evolution of anti-cancer therapy (including chemotherapy, targeted therapy, and immunotherapy) in recent years has led to a more favorable efficacy and safety profile for a growing cancer population, and the improvement of overall survival and reduction of morbidity for many cancers. Anti-cancer therapy improves outcomes for cancer patients; however, many classes of anti-cancer therapy have been implicated in the induction of bullous dermatologic adverse events (DAE), leading to reduced patient quality of life and in some cases discontinuation of life-prolonging or palliative therapy. Timely and effective management of adverse events is critical for reducing treatment interruptions and preserving an anti-tumor effect. Bullous DAE may be limited to the skin or have systemic involvement with greater risk of morbidity and mortality. We present the epidemiology, diagnosis, pathogenesis, and management of bullous DAE secondary to anti-cancer therapies to enable clinicians to optimize management for these patients.

Laugier-Hunziker Syndrome: A Rare Cause of Oral Mucosa Pigmentation

Introduction: Various diseases cause pigmentation of the oral mucosa. Among them, however, Laugier-Hunziker syndrome is not well known to dentists. Laugier-Hunziker syndrome is a benign pigmentary disorder characterized by the unique expression of pigmentation of the mucosa, nails and skin. In this report, we present a rare case of Laugier-Hunziker syndrome that occurred in an elderly person. Case Presentation: The patient was an 84-year-old female resident of an elderly care facility. The institutional dental hygienist reported that she was concerned about the discoloration of the oral mucosa. On examination, she had pigmentation of her oral mucosa and nails. She had no history of any disease or medication that would cause pigmentation. Although this condition was initially unknown to us, a diagnosis of Laugier-Hunziker syndrome was made. Conclusion: We report a case of Laugier-Hunziker syndrome in an elderly woman, which is not a well-known condition among dental professionals. More knowledge about diseases that cause pigmentation of the oral mucosa would be helpful in dental practice, especially at external facilities.

Experience of patients with lung cancer and with targeted therapy-related skin adverse drug reactions: A qualitative study

Objective

To explore the experience of non-small-cell lung cancer patients with targeted therapy-related skin adverse drug reactions.

Methods

This is a descriptive quantitative study conducted in a comprehensive hospital in Henan, China. Purposive sampling was used to recruit patients with non-small-cell lung cancer and with targeted therapy-related skin adverse drug reactions. In total, 23 patients were approached when the data were saturated. Face-to-face interviews were conducted by an independent researcher using a semi-structured interview guide. Interview data were transcribed and analyzed by qualitative inductive content analysis.

Results

Based on the analysis, four main categories were identified according to patients' descriptions of their experience: a lack of self-management ability, psychological and emotional problems, a barrier to social participation, and a need for social support. Suffering from persistent symptoms, insufficient knowledge, skills and strategies for skin adverse drug reaction management, psychological problems, social avoidance/withdrawal, and reduced willingness to work were core experiences that would affect patients' compliance with treatment, prognosis, and the overall quality of life.

Conclusions

This study revealed the real experience of patients with non-small-cell lung cancer and with targeted therapy-related skin adverse drug reactions which contributed to the development of targeted interventions to manage skin adverse reactions.

IDO Inhibitor and Gallic Acid Cross-Linked Small Molecule Drug Synergistic Treatment of Melanoma

In this study, we synthesized a molecule GA-1MT (GM) composed of indoleamine 2,3-dioxygenase (IDO) inhibitor (1-methyl-d-tryptophan, 1MT) called NLG8189 and gallic acid (GA) and verified its therapeutic effect on B16F10 melanoma cells and an orthotopic tumor-bearing mouse model. The synthesized molecule GM was analyzed by 1H NMR and mass spectrometry (MS). In addition, we confirmed that GM could mediate the immune response in the B16F10 cell tumor model by flow cytometry and immunofluorescence. The synthesized GM molecule could increase the solubility of 1MT to enhance the drug efficacy and lower costs. Moreover, GM could inhibit melanoma growth by combining 1MT and GA. In vivo experiments showed that GM could effectively inhibit the expression of tyrosinase, regulate the proportion of CD4+ T cells, CD8+ T cells, and regulatory T cells (Treg cells) in tumors, and significantly suppress melanoma growth. The newly synthesized drug GM could more effectively inhibit melanoma than GA and 1MT alone or in combination.

Onychopathy Induced by Nivolumab: A Targeted Immunotherapy

Nivolumab is a human immunoglobulin G4 (IgG4) monoclonal antibody that binds to the PD-1 receptor on T-cells and blocks its interaction with PD-L1 and PD-L2, releasing the PD-1 pathway-mediated inhibition of the immune response, including the anti-tumor immune response, resulting in decreased tumor growth. Here, we present a case of a 56-year-old lady with a diagnosis of squamous cell carcinoma (SCC) of the lip who presented with dystrophy of 20 nails, distal onycholysis, yellow-black discoloration of nail plates, painful paronychia with superimposed bacterial infection of big toes of both feet for three months. Few warty growths were also appreciated on big toes of both feet. She had undergone for her SCC 33 sessions of radiotherapy and 43 cycles of nivolumab 140mg for 60 minutes every two weeks. Following discontinuing this drug, the peri-ungual and nail bed inflammation improved, however nail plate dystrophy persisted. To our knowledge, the occurrence of nail dystrophy with nivolumab has never been reported before but it has been described with other targeted therapies.

Skin Toxicities with Cyclin-Dependent Kinase 4/6 Inhibitors in Breast Cancer: Signals from Disproportionality Analysis of the FDA Adverse Event Reporting System

BACKGROUND

Cyclin-dependent kinase (CDK)-4/6 inhibitors have been associated with dermatologic reactions, especially alopecia, in pivotal trials.

OBJECTIVE

We aimed to comprehensively describe skin toxicities with CDK4/6 inhibitors reported in the real world through the US FDA Adverse Event Reporting System (FAERS).

METHODS

Cutaneous adverse events (AEs) were characterized in terms of spectrum and clinical features, including seriousness (with fatality proportion), latency, and discontinuation. Disproportionality analyses were performed through the reporting odds ratio (ROR) and 95% confidence interval (CI) by comparing CDK4/6 inhibitors with other anticancer drugs used in breast cancer.

RESULTS

As of December 2020, a total of 7986 cutaneous events were reported with CDK4/6 inhibitors (15% of total AEs with CDK4/6 inhibitors), mainly by consumers (39.6%), with 43.5% classified as serious and 25% requiring discontinuation. In 49% of the cases, five or more noncutaneous events were co-reported. The most frequently reported cutaneous events were alopecia (N = 3528), rash (N = 1493), and pruritus (N = 1211): rashes were recorded in the first month (median onset 28 days), whereas alopecia and nail alterations were recorded after a median of 67 and 112 days, respectively. Several cutaneous AEs were associated with increased reporting, including vitiligo (N = 6; ROR 8.88; 95% CI 2.95-22.46) and bullous dermatitis with ribociclib (N = 7; ROR 2.90; 95% CI 1.13-6.27); erythema multiforme with abemaciclib (N = 9; ROR 5.80; 95% CI 2.57-11.48); onychoclasis (N = 142, ROR 2.27; 95% CI 1.83-2.79) and trichorrhexis (N = 22; ROR 3.27; 95% CI 1.78-5.93) with palbociclib.

CONCLUSIONS

Although causality cannot be demonstrated, a diverse reporting pattern of cutaneous AEs emerged from FAERS, including dermal/epidermal conditions, hair/nail disorders, and serious bullous conditions, with variable onsets and a remarkable proportion of discontinuations. The potential differential reporting among CDK4/6 inhibitors deserves further investigation.

Management of adverse events associated with cabozantinib plus nivolumab in renal cell carcinoma: A review

Tyrosine kinase inhibitors have been successfully developed in combination with immune checkpoint inhibitors to treat advanced renal cell carcinoma (RCC), further advancing treatment. While safety profiles are generally manageable with combination regimens, overlapping adverse events (AEs) and immune-related AEs can make treatment more complex. The CheckMate 9ER study evaluated the tyrosine kinase inhibitor cabozantinib in combination with the anti-programmed cell death protein-1 antibody nivolumab in patients with previously untreated advanced RCC. Cabozantinib + nivolumab demonstrated superiority over sunitinib for progression-free survival, overall survival, and objective response rate. These outcomes supported the approval of cabozantinib + nivolumab as a first-line therapy for advanced RCC. The safety profile was manageable with prophylaxis, supportive care, dose holds and reductions for cabozantinib, and dose holds and immunosuppressive therapy for nivolumab. This review discusses the safety results of CheckMate 9ER and provides guidance on managing some of the more clinically relevant AEs with a focus on overlapping AEs, including diarrhea, elevated amylase/lipase, hepatotoxicity, dermatologic reactions, fatigue, endocrine disorders, and nephrotoxicity. We discuss AE management strategies (prophylaxis, supportive care, dose modification, and immunosuppressive therapy), and provide recommendations for identifying the causative agent of overlapping AEs and for consulting specialists about organ-specific immune-related AEs. Optimizing AE management can maintain tolerability and should be a priority with cabozantinib + nivolumab treatment.

A case of palmar hypopigmentation induced by capecitabine in a gastrointestinal cancer patient

INTRODUCTION

Capecitabine is an antimetabolite antineoplastic agent widely used in the treatment gastrointestinal cancers. The common frequently reported cutaneous adverse drug reaction associated with capecitabin are a palmar-plantar erythrodysesthesia syndrome, rash and hyperpigmentation. This case reports a capecitabine-induced palmar hypopigmentation.

CASE REPORT

We report the case of a 74-years old patient with jejunum adenocarcinoma treated by capecitabine. The patient developed a pseudo-vitiligo after 2 cycles capecitabine and without history of cutaneous disorders. The skin lesions were characterized with skin hypopigmentation on both hands.Management and outcome: The hypopigmentation slowly recovered after capecitabine discontinuation.

CONCLUSION

This is the first described case of pseudo-vitiligo induced by capecitabine. This impressive but non-severe adverse effect should be known by oncologists and oncology pharmacists to reassure the patients in particular about the possible recovery after discontinuation of capecitabine.

Adverse reactions of targeted therapy in cancer patients: a retrospective study of hospital medical data in China

BACKGROUND

The adverse reactions (ADRs) of targeted therapy were closely associated with treatment response, clinical outcome, quality of life (QoL) of patients with cancer. However, few studies presented the correlation between ADRs of targeted therapy and treatment effects among cancer patients. This study was to explore the characteristics of ADRs with targeted therapy and the prognosis of cancer patients based on the clinical data.

METHODS

A retrospective secondary data analysis was conducted within an ADR data set including 2703 patients with targeted therapy from three Henan medical centers of China between January 2018 and December 2019. The significance was evaluated with chi-square test between groups with or without ADRs. Univariate and multivariate logistic regression with backward stepwise method were applied to assess the difference of pathological characteristics in patients with cancer. Using the univariate Cox regression method, the actuarial probability of overall survival was performed to compare the clinical outcomes between these two groups.

RESULTS

A total of 485 patients were enrolled in this study. Of all patients, 61.0% (n = 296) occurred ADRs including skin damage, fatigue, mucosal damage, hypertension and gastrointestinal discomfort as the top 5 complications during the target therapy. And 62.1% of ADRs were mild to moderate, more than half of the ADRs occurred within one month, 68.6% ADRs lasted more than one month. Older patients (P = 0.022) and patients with lower education level (P = 0.036), more than 2 comorbidities (P = 0.021), longer medication time (P = 0.022), drug combination (P = 0.033) and intravenous administration (P = 0.019) were more likely to have ADRs. Those with ADRs were more likely to stop taking (P = 0.000), change (P = 0.000), adjust (P = 0.000), or not take the medicine on time (P = 0.000). The number of patients with recurrence (P = 0.000) and metastasis (P = 0.006) were statistically significant difference between ADRs and non-ADRs group. And the patients were significantly poor prognosis in ADRs groups compared with non-ADRs group.

CONCLUSION

The high incidence of ADRs would affect the treatment and prognosis of patients with cancer. We should pay more attention to these ADRs and develop effective management strategies.

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.

Restorative oncodermatology: Diagnosis and management of dermatologic sequelae from cancer therapies

The long-term survival of patients with cancer has risen dramatically during the last few decades. Despite this remarkable success, the same treatments that have enabled cure or remission often secondarily affect the skin, hair, and nails. Conditions including scarring, striae distensae, persistent alopecia, pigmentary changes, nail alterations, chronic radiation dermatitis, and radiation fibrosis have been associated with anxiety, depression, decreased quality of life, and impaired function. These dermatologic changes are cosmetically disfiguring, may limit activities, and are a visual reminder of past illness. Interventions toward improving these untoward sequelae and restoring the appearance and function of skin and appendages are critical for normalization and may contribute to improved quality of life in cancer survivors. Here, we outline dermatologic sequelae of cancer therapies with a review of medical and procedural treatment strategies to restore dermatologic health in the survivorship population.