"Recognizing and managing allergic contact dermatitis: Focus on major allergens"

Patch testing is the gold standard for the diagnosis of allergic contact dermatitis. The identification and avoidance of culprit allergen/s is essential in the treatment of this disease. Each year, new allergens are identified as emerging or important. The authors discuss allergens that are common, enduring, emergent, incompletely recognized and controversial for the practicing allergist and dermatologist. This Clinical Management Review will encompass a review of fragrances, preservatives, rubber, acrylates, metals, and medications, their common sources of exposure, controversies in diagnosis and patch testing, management and how to avoid those allergens. This review will also include practical aspects of diagnosis and management and will provide resources that can be used as guidance for physicians and patients on nickel, MCI/MI, fragrance, the most common allergens positive on patch testing.

Definition, acronyms, nomenclature, and classification of angioedema (DANCE): AAAAI, ACAAI, ACARE, and APAAACI DANCE consensus

BACKGROUND

Angioedema (AE) manifests with intermittent, localized, self-limiting swelling of the subcutaneous and/or submucosal tissue. AE is heterogeneous, can be hereditary or acquired, may occur only once or be recurrent, may exhibit wheals or not, and may be due to mast cell mediators, bradykinin, or other mechanisms. Several different taxonomic systems are currently used, making it difficult to compare the results of studies, develop multicenter collaboration, and harmonize AE treatment.

OBJECTIVE

We developed a consensus on the definition, acronyms, nomenclature, and classification of AE (DANCE).

METHODS

The initiative involved 91 experts from 35 countries and was endorsed by 53 scientific and medical societies, and patient organizations. A consensus was reached by online discussion and voting using the Delphi process over a period of 16 months (June 2021 to November 2022).

RESULTS

The DANCE initiative resulted in an international consensus on the definition, classification, and terminology of AE. The new consensus classification features 5 types and endotypes of AE and a harmonized vocabulary of abbreviations/acronyms.

CONCLUSION

The DANCE classification complements current clinical guidelines and expert consensus recommendations on the diagnostic assessment and treatment of AE. DANCE does not replace current clinical guidelines, and expert consensus algorithms and should not be misconstrued in a way that affects reimbursement of medicines prescribed by physicians using sound clinical judgment. We anticipate that this new AE taxonomy and nomenclature will harmonize and facilitate AE research and clinical studies, thereby improving patient care.

Abrocitinib efficacy and safety in moderate-to-severe atopic dermatitis by race, ethnicity, and Fitzpatrick skin type

BACKGROUND

Response to abrocitinib treatment for moderate-to-severe atopic dermatitis (AD) has not been evaluated across racial and ethnic subpopulations.

OBJECTIVE

To assess the efficacy and safety of abrocitinib on the basis of patient race, ethnicity, and Fitzpatrick skin type (FST).

METHODS

Data were pooled post hoc from patients treated with abrocitinib 200 mg, 100 mg, or placebo in 3 monotherapy trials (NCT02780167, NCT03349060, and NCT03575871). Race and ethnicity were self-reported; FST was determined by study investigators. Evaluations through Week 12 include the following: (1) Investigator's Global Assessment of clear or almost-clear skin; (2) greater than or equal to 75% improvement in Eczema Area and Severity Index or SCORing AD; (3) a greater-than-or-equal-to 4-point improvement in Peak Pruritus Numerical Rating Scale score; (4) least squares mean changes in Dermatology Life Quality Index and Patient-Oriented Eczema Measure scores; and (5) treatment-emergent adverse events.

RESULTS

The sample comprised 628 White, 204 Asian, and 83 Black patients; 37 were Hispanic or Latino; 624 had FST I to III and 320 had FST IV to VI. Treatment with either abrocitinib dose was associated with greater proportions of patients achieving Investigator's Global Assessment of clear or almost-clear skin, ≥ 75% improvement in Eczema Area and Severity Index, ≥ 75% improvement in SCORing AD, and a ≥ 4-point improvement in Peak Pruritus Numerical Rating Scale, or greater score changes from baseline in Dermatology Life Quality Index and Patient-Oriented Eczema Measure vs placebo regardless of race, ethnicity, or FST. Dose-response was most prominent in White patients. In Black patients, the effects of the 2 doses were similar. Treatment-emergent adverse events were more common in White and Black than in Asian patients.

CONCLUSION

Abrocitinib was more efficacious than placebo across the racial and ethnic groups and ranges of phototypes analyzed. Studies with increased representation of populations of color are warranted to elucidate potential variations in response across diverse populations.

TRIAL REGISTRATION

Clinicaltrials.gov Identifier: NCT02780167 (phase 2b), NCT03349060 (phase 3 MONO-1), and NCT03575871 (phase 3 MONO-2).

Interpreting the Relationship Among Itch, Sleep, and Work Productivity in Patients with Moderate-to-Severe Atopic Dermatitis: A Post Hoc Analysis of JADE MONO-2

BACKGROUND

Abrocitinib, an oral, once-daily Janus kinase 1-selective inhibitor, improved itch severity, sleep, and work productivity versus placebo in patients with moderate-to-severe atopic dermatitis.

OBJECTIVE

The aim of this study was to investigate relationships among itch, sleep, and work productivity in the phase III JADE MONO-2 clinical trial.

METHODS

A repeated-measures longitudinal model was used to examine relationships between itch (using the Peak Pruritus Numerical Rating Scale [PP-NRS] or Nighttime Itch Scale [NTIS]) and sleep disturbance/loss (using the Patient-Oriented Eczema Measure sleep item and SCORing AD Sleep Loss Visual Analog Scale) and, separately, between itch and work productivity (using the Work Productivity and Activity Impairment-Atopic Dermatitis Version 2.0 questionnaire). Mediation modelling was used to investigate the effect of treatment (abrocitinib vs placebo) on work impairment via improvements in itch and sleep.

RESULTS

The relationships between itch/sleep and itch/work productivity were approximately linear. PP-NRS scores of 0, 4-6, and 10 were associated with 0 days, 3-4 days, and 7 days per week of disturbed sleep, respectively. PP-NRS or NTIS scores of 0-1, 4-5, and 10 were associated with 0-10%, 20-30%, and >50% overall work impairment, respectively. Seventy-five percent of the effect of abrocitinib on reducing work impairment was indirectly mediated by improvement in itch, followed by sleep.

CONCLUSION

These results quantitatively demonstrate that reducing itch severity is associated with improvements in sleep and work productivity. Empirical evidence for the mechanism of action of abrocitinib showed that itch severity is improved, which reduces sleep loss/sleep disruption and, in turn, improves work productivity.

CLINICAL TRIAL REGISTRATION

NCT03575871.

Capturing total steroid burden in patients with atopic dermatitis and asthma

Background: The cumulative burden of cutaneous, inhaled, intranasal and systemic corticosteroids (CS) in individual patients should be routinely assessed. Methods: Our monitoring tool collected data on CS type, potency, frequency, side effects, interventions and patient counseling in every encounter. Results: 82 AD patients had 151 encounters. Severe AD had more side effects than those without (68.18% vs 41.67% respectively, P < 0.0333). Those with higher TSB had more side effects overall (p < 0.0493). There was also significant positive correlation with higher TSB and the overall number of side effects (p < 0.0116). 101 asthmatics had 193 encounters. Over 50% of asthma patients had other CS. Severe asthmatics had more side effects than those without (62.5% vs 20.8%, p < 0.0001). Patients with higher TSB had more side effects overall (p < 0.0001). There was also significant positive correlation with a higher TSB and the overall number of side effects (p < 0.0001). 80% of AD and 90% of asthma patients were satisfied with the counseling. The EHR in AD and asthma resulted in counseling in 89% and 93% respectively and real-time intervention in 27.8% and 3% respectively. Although patients with side effects had more dose adjustments, those without side effects also warranted adjustments. Physician surveys demonstrated improved satisfaction with the EHR tool over time, and minimal impact on visit time. Conclusion: The utilization of our EHR monitoring tool allows for the identification and tracking of TSB in patients, associated side effects and leads to real-time physician intervention.

Contact allergens for the allergist

OBJECTIVE

The objective of this article is to provide an overview and describe typically encountered skin contact allergens implicated in allergic contact dermatitis (ACD).

DATA SOURCES

Published literature obtained through textbooks, online PubMed, and Google Scholar database searches, author photography, and adapted figures were used.

STUDY SELECTIONS

Studies on the evaluation of ACD and specific skin contact allergens were selected, with a focus on original research articles and clinical reviews.

RESULTS

Major classifications of common contact allergens include the following: (1) fragrances, (2) preservatives, (3) excipients, (4) rubber chemicals, (5) textile dyes, (6) topical medications, and (6) metals and other biomedical device components. The dermatitis distribution can aid in identifying the suspected contact allergen culprit. Certain contact allergens have features that are important to consider in the patch testing (PT) interpretation; these include possible irritant reactions, false-negative reactions or missed detection, and delayed reactions. Fragrances, preservatives, and excipients are culprits in personal products and facial or neck dermatitis. Patch testing with fragrances, preservatives, and patient-supplied products requires careful interpretation. Hand or foot dermatitis may be attributed to rubber chemicals or textile dyes. The management of topical corticosteroid contact allergy is guided on the basis of structural group classifications. Metal sensitization has been associated with dermatitis or biomedical device complications.

CONCLUSION

Each skin contact allergen has unique characteristics with regard to the dermatitis clinical presentation and potential PT nuances. These features are critical to recognize in the evaluation of ACD and PT interpretation and clinical relevance, leading to an accurate diagnosis.

Phase 3 Efficacy and Safety of Abrocitinib in Adults with Moderate-to-Severe Atopic Dermatitis After Switching from Dupilumab (JADE EXTEND)

BACKGROUND

Abrocitinib efficacy by prior dupilumab response status in patients with moderate-to-severe atopic dermatitis (AD) has not previously been assessed in phase 3 studies.

OBJECTIVE

Examine efficacy and safety of abrocitinib among patients who received prior dupilumab.

METHODS

Patients with moderate-to-severe AD received abrocitinib 200 mg or 100 mg once-daily in JADE EXTEND (phase 3 extension) after dupilumab in double-blind, placebo-controlled phase 3 JADE COMPARE.

RESULTS

Among prior dupilumab responders, ≥75% improvement in Eczema Area and Severity Index (EASI-75) was achieved in 93.5% and 90.2% of patients who received 12 weeks of abrocitinib 200 mg and 100 mg, respectively; ≥4-point improvement in Peak Pruritus Numerical Rating Scale (PP-NRS4) was achieved in 89.7% and 81.6%, respectively. Among prior dupilumab nonresponders, EASI-75 was achieved with abrocitinib 200 mg and 100 mg in 80.0% and 67.7% and PP-NRS4 in 77.3% and 37.8%, respectively. Most common adverse events among abrocitinib-treated patients were nasopharyngitis, nausea, acne, and headache. Conjunctivitis occurred less frequently with abrocitinib in comparison to prior dupilumab.

LIMITATIONS

Short-term, 12-week analysis; no placebo arm.

CONCLUSION

Efficacy and safety profile of abrocitinib in JADE EXTEND supports the role of abrocitinib as a treatment for patients with moderate-to-severe AD, regardless of prior dupilumab response status.

The international EAACI/GA²LEN/EuroGuiDerm/APAAACI guideline for the definition, classification, diagnosis, and management of urticaria

This update and revision of the international guideline for urticaria was developed following the methods recommended by Cochrane and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) working group. It is a joint initiative of the Dermatology Section of the European Academy of Allergology and Clinical Immunology (EAACI), the Global Allergy and Asthma European Network (GA²LEN) and its Urticaria and Angioedema Centers of Reference and Excellence (UCAREs and ACAREs), the European Dermatology Forum (EDF; EuroGuiDerm), and the Asia Pacific Association of Allergy, Asthma and Clinical Immunology with the participation of 64 delegates of 50 national and international societies and from 31 countries. The consensus conference was held on 3 December 2020. This guideline was acknowledged and accepted by the European Union of Medical Specialists (UEMS). Urticaria is a frequent, mast cell-driven disease that presents with wheals, angioedema, or both. The lifetime prevalence for acute urticaria is approximately 20%. Chronic spontaneous or inducible urticaria is disabling, impairs quality of life, and affects performance at work and school. This updated version of the international guideline for urticaria covers the definition and classification of urticaria and outlines expert-guided and evidence-based diagnostic and therapeutic approaches for the different subtypes of urticaria.

Contact dermatitis due to personal protective equipment use and hygiene practices during the COVID-19 pandemic: A systematic review of case reports

BACKGROUND

Prolonged use of personal protective equipment (PPE) may lead to contact dermatitis during the coronavirus disease 19 (COVID-19) pandemic. This paper aims to identify the causative factors of contact dermatitis from PPE and hygiene practices.

METHODS

The search was conducted adhering to PRISMA 2020 guidelines. A Delphi process was employed to ensure that the aims of this study were met. PubMed and Web of Science databases were systematically searched through September 12, 2021, using search terms: Contact dermatitis, case report, covid-19. The findings were tabulated as author/year, gender, age, presentation, cause, dermatological diagnosis, testing modality, provided treatment, symptom resolution (time in days), prognosis, and follow-up.

RESULTS

The mean age of all individuals was 29.75 years, with 75% females. All cases presented with erythema, with 62.5% reporting pruritus and 37.5% reporting burning facial symptoms. Surgical masks and hand-hygiene products (37.5%) were the most commonly reported causative agent with 25% due to KN95/FFP type 2 use. Allergic contact dermatitis (50%) and irritant contact dermatitis (25%) were common diagnoses. Treatments included creams, emollients, and desloratadine, with restriction of irritant-causing factors. The prognosis was generally good among the cases, with 62.5% presenting complete resolution within a week and 12.5% showing moderate improvement at the fourth month after discontinuing use.

CONCLUSION

This study finds pertinent links between PPE use and contact dermatitis during the COVID-19 pandemic. While many cases are bound to go underreported in literature, well-designed, large-scale studies in the future may help promote these associations in a more comprehensive manner.

Occupational Contact Dermatitis: An Update

Occupation contact dermatitis (CD) is a common inflammatory skin condition impacting every professional industry in the United States. It is associated with significant personal and professional distress, loss of revenue, and decreased productivity. Occupational CD is further subdivided into irritant CD and allergic CD. Frequently, workers may suffer from a combination of both types. Numerous workplace exposures are implicated, but there are several themes across professions, such as CD related to frequent handwashing and wet work. A detailed occupational history, physical examination, and patch testing can help to make the diagnosis. Treatment includes identification of the substance and avoidance, which often is quite challenging.

Allergic Contact Dermatitis

Allergic contact dermatitis is common, resulting in considerable morbidity. Diagnosis is based on a thorough history, physical examination, and patch testing. Several commercially available panels of patch testing are currently used. Allergens are found in a wide variety of daily products, occupational exposures, and foods. The mainstay of treatment is avoidance of the allergen, and databases like Contact Allergen Management Program and Contact Allergen Replacement Database help patients to select products that do not contain allergens to which they are sensitized. Topical corticosteroids can be used to treat exacerbations, but should be avoided in long-term treatment.

Risk stratification of systemic reactions to subcutaneous immunotherapy: A retrospective study

Background: Subcutaneous allergen immunotherapy (SCIT) is a very effective treatment modality; however, it can be associated with both local and systemic reactions (SR). Identifying patient factors that predict SR remains paramount. Objective: Our aim was to identify the rate of SRs to SCIT as well as identify patient risk factors associated with the development of SRs. Methods: We conducted an institutional review board approved 10-year retrospective chart review of 459 patients who received SCIT in our clinic. The patients were placed into cohorts according to age, which included pediatric (5-18 years), adult (19-64 years), and senior (>65 years) patients. Results: An SR (N = 177) was identified in 24.8% of the patients (n = 114). The incidence of SR per injection was 0.2% (177 SRs of 74,183 total injections). SRs were identified as class 1 (n = 152), class 2 (n = 21), class 3 (n = 2), and class 4 (n = 2) according to the 2010 World Allergy Organization's SR grading system. There were no observed differences in the number of SRs with respect to age group. Female patients were more likely to have an SR (p = 0.02) overall as well as more than one reaction (p = 0.002). Other risk factors included the following: a patient-reported history of food allergy (p = 0.05), drug allergy (p = 0.005), or positive skin test result to cat and/or dog (p = 0.01). In addition, patients who were receiving SCIT to cat and/or dog (p = 0.004) or to dust mite (p = 0.03) were more likely to have an SR. Conclusion: In our patient population, the majority of SRs to SCIT occurred in female patients, patients with a history of drug or food allergies, and those who were receiving pet or dust-mite SCIT.

Atopic dermatitis: addressing allergy, infection, itch and complementary therapies

Atopic dermatitis (AD) is a complex condition that results from the dynamic interplay between genetic predisposition, skin barrier defects, environmental factors, and a dysfunctional immune system. As a result, AD can be complicated by irritant and allergic contact dermatitis and imbalances in the skin microbiome, which can subsequently exacerbate the severity and complicate the course of preexisting atopic disease. Itch is an important symptom of AD, as it plays a large role in the quality of life of patients and their families. Since AD is a chronic, inflammatory disease that recrudesces throughout life, many have utilized alternative and/or complementary therapies, as monotherapy or in conjunction with conventional therapies, as a form of management.

Validation of five patient-reported outcomes for atopic dermatitis severity in adults

BACKGROUND

Structured patient-reported outcomes of atopic dermatitis (AD) severity are not standardized in clinical practice.

OBJECTIVES

To determine the construct validity, internal consistency, cross-cultural validity and floor or ceiling effects of multiple AD severity assessments.

METHODS

This is a cross-sectional, population-based study of 2893 adults, including 602 adults who met a modified set of U.K. diagnostic criteria for AD. AD severity was assessed using self-reported global AD severity, Patient-Oriented Eczema Measure (POEM), Patient-Oriented Scoring Atopic Dermatitis (PO-SCORAD) and its objective and subjective components, and numerical rating scale (NRS)-itch. Quality of life was assessed using Short-Form (SF)-12 mental and physical health scores, Short-Form Six Dimensions (SF-6D) health utility scores and Dermatology Life Quality Index (DLQI). Mental health was assessed with the Hospital Anxiety and Depression Scale (HADS).

RESULTS

PO-SCORAD, PO-SCORAD objective and subjective subscores, NRS-itch and POEM all had moderate-to-strong correlations with each other and DLQI, fair-to-moderate correlations with HADS-anxiety and HADS-depression, and inverse correlations with SF-12 mental component score and SF-6D (Pearson correlations, P < 0·001). All scores showed good criterion validity as judged by anova and receiver operator characteristics. PO-SCORAD, PO-SCORAD objective subscore and POEM had similarly good internal consistency (Cronbach's alpha = 0·84, 0·82 and 0·86); the PO-SCORAD subjective subscore was less internally consistent (alpha = 0·57). All scores showed potentially poor cross-cultural validity as demonstrated by uniform and nonuniform differential item functioning by age, sex and/or race/ethnicity for multiple items. There were floor effects for POEM, but not for the other assessments.

CONCLUSIONS

PO-SCORAD, PO-SCORAD objective and subjective subscores, NRS-itch and POEM appear to be valid for assessing AD severity in clinical practice. What's already known about this topic? Few studies have demonstrated the validity of the atopic dermatitis severity assessments Patient-Oriented Scoring Atopic Dermatitis (PO-SCORAD), PO-SCORAD subscores, numerical rating scale (NRS)-itch and Patient-Oriented Eczema Measure (POEM). What does this study add? This study demonstrates that PO-SCORAD, PO-SCORAD subscores, NRS-itch and POEM all had good construct validity in the assessment of atopic dermatitis severity in adults. Only POEM demonstrated floor effects. What are the clinical implications of this work? PO-SCORAD, PO-SCORAD subscores, NRS-itch and POEM all appear to have sufficient validity to be used as assessments of atopic dermatitis severity in clinical practice.

Symptoms and diagnosis of anxiety and depression in atopic dermatitis in U.S. adults

Background

The relationship between atopic dermatitis (AD), anxiety and depression in the U.S. adult population is not well established.

Objectives

To determine the relationship of AD and its severity with symptoms and diagnosis of anxiety and depression in U.S. adults.

Methods

A cross‐sectional, population‐based study of 2893 adults was performed. AD was determined using modified U.K. Diagnostic Criteria.

Results

Adults with AD vs. those without AD had higher mean Hospital Anxiety and Depression Scale anxiety (HADS‐A) (7·7 vs. 5·6) and depression (HADS‐D) (6·0 vs. 4·3) scores and higher prevalences of abnormal (≥ 11) HADS‐A (28·6% vs. 15·5%) and HADS‐D (13·5% vs. 9·0%) scores. In multivariable linear and logistic regression models controlling for sociodemographics, AD was associated with significantly higher mean HADS‐A and HADS‐D scores (7·7 and 6·0) and higher odds of abnormal HADS‐A [odds ratio (OR) 2·19, 95% confidence interval (CI) 1·65–2·91] and HADS‐D scores (OR 1·50, 95% CI 1·04–2·17) (P ≤ 0·03 for all). Mean and abnormal HADS‐A and HADS‐D scores were increased in moderate and severe/very severe self‐reported global AD severity, Patient‐Oriented Eczema Measure (POEM), Patient‐Oriented Scoring AD (PO‐SCORAD), PO‐SCORAD itch and sleep (P < 0·0001 for all). All respondents with severe PO‐SCORAD, POEM and PO‐SCORAD itch had borderline or abnormal HADS‐A and HADS‐D scores. Adults with AD vs. those without AD had higher prevalence of self‐reported healthcare‐diagnosed anxiety or depression in the past year (40·0% vs. 17·5%). Many adults with AD who had borderline and/or abnormal HADS‐A or HADS‐D scores reported no diagnosis of anxiety or depression.

Conclusions

AD is associated with significantly increased anxiety and depression, which may go undiagnosed.

What's already known about this topic?

Previous studies found higher rates of anxiety and depression in clinical cohorts of patients with atopic dermatitis.

What does this study add?

This study found dramatically higher rates of anxiety and depression among adults with atopic dermatitis in the U.S. population, which was primarily driven by atopic dermatitis severity.

Anxiety and depression often go undiagnosed in adults with atopic dermatitis.

Linked Comment: https://doi.org/10.1111/bjd.18252.

https://doi.org/10.1111/bjd.18278 available online

https://www.bjdonline.com/article/Chronic-urticaria-and-osteoporosis-a-longitudinal-community-based-cohort-study-of-11944-patients/

Utilization of high-fidelity simulation for medical student and resident education of allergic-immunologic emergencies

BACKGROUND

The advantages of clinical simulation used in medical education include the acquisition of clinical skills in a controlled setting, promoting a multidisciplinary approach to patient care, and a high degree of learner satisfaction.

OBJECTIVE

We aimed to identify knowledge gaps among Internal Medicine residents and students in the diagnosis and treatment of anaphylaxis and angiotensin-converting enzyme (ACE)-inhibitor-induced angioedema through their participation in a simulation course.

METHODS

We conducted a cohort study involving clinical simulations with a high-fidelity, patient-simulator. The cases (antibiotic-induced anaphylaxis and ACE-inhibitor-induced angioedema) were standardized and algorithmic. Participants completed a pre- and post- simulation knowledge assessment and course evaluation. A follow-up knowledge survey was sent out 6 to 12 months after the course completion.

RESULTS

Twelve groups comprising 45 medical students and residents completed the anaphylaxis course. All groups diagnosed anaphylaxis after more than 2-organ-system involvement had manifested, and half of the groups made the diagnosis after the patient-simulator was in anaphylactic shock. Half gave an incorrect dose of epinephrine, and most of the participants were inexperienced in epinephrine auto-injector (EAI) administration. Eight groups comprising 27 participants completed the ACE-inhibitor-angioedema course. Six of the groups correctly diagnosed the patient-simulator, but multiple incorrect treatments were given, and only 1 group successfully intubated the patient-simulator. Knowledge improved immediately after the simulation, and knowledge specific to EAI treatment seemed to be retained long-term. All participants agreed that the simulation was practical to their education.

CONCLUSION

Clinical simulation improves knowledge on the diagnosis and treatment of anaphylaxis and ACE-inhibitor-induced angioedema. We advocate that clinical simulation be incorporated at institutions with appropriate capabilities.

Systemic Therapies for Moderate-to-Severe Atopic Dermatitis: Expert Perspectives in Practice

Atopic dermatitis (AD) is a chronic inflammatory skin disease that affects around 13% of children and 7% of adults in the US. It can have a significant impact on the quality of life (QoL) of affected individuals due to pruritus and the visibility of lesions on the skin. AD is increasingly recognized as a systemic disease, since dysregulation of the adaptive and innate immune systems plays a key role in the underlying disease pathogenesis, which has important implications for how the condition is treated. Patients with moderate-to-severe disease who have failed to achieve disease control may benefit from systemic immunomodulatory treatments. Recently published expert perspectives outlined recommendations for the diagnosis and treatment of moderate-to-severe AD in adults, reflecting evidence-based, practical recommendations to support allergists and dermatologists in selecting appropriate treatment in the era of biologic therapies. To help clinicians understand how these practical recommendations can be implemented into clinical practice, we describe two real life case studies of adult patients with AD. In these case studies, we demonstrate how AD severity, treatment response, and treatment failure can be assessed, and the role of emerging systemic treatments in the management of moderate-to-severe AD. J Drugs Dermatol. 2019;18(2):122-129.