Wednesday, September 4th, 24

14:00 – 16:45
DKG/IVDK Symposium

14:00
Introduction
Christian Apfelbacher & Richard Brans

14:05
Palladium patch test preparations differ in terms of skin metal ion delivery and frequencies of allergy diagnoses

Katherina Siewert

14:25
Contact sensitizations in female foot care specialists with occupational dermatitis

Richard Brans

14:45
Contact sensitization in the cleaning industry

David Reißig

15:25
Patch test results with the DKG preservative series

Steffen Schubert

15:45
Comparison of patch testing Brazilian (Green) propolis and Chinese (poplar-type) propolis: clinical epidemiological study using data from the IVDK

Katherina Piontek

16:05
Gender differences in contact sensitisation to allergens of the DKG baseline series in Germany, Austria and Switzerland

Philipp Drewitz

14:00 – 16:45
ICDRG Symposium

14:00
Introduction
Magnus Bruze

14:05
Recent topics on allergic contact dermatitis/urticaria caused by cosmetics in Japan
Kayoko Matusnaga

14:25
Hypersensitivity reaction to dental preparations -myth or reality?
Suzana Ljubojevic

14:45
Contact allergy to joint implants
Rosemary Nixon

15:05
Contact allergy to oxidized linalool and oxidized limonene at ICDRG clinics
Thanisorn Sukakul

15:25
Allergic contact blepharoconjunctivitis
Iris Ale

15:45
Sports and allergic contact dermatitis
An Goossens

16:05
Interesting cases from the Ottawa Contact Dermatitis Clinic
Melanie Pratt

16:25
Clarification and modification of the ICDRG classification of patch test reactions
Magnus Bruze

14:00 – 16:45
ACDS Symposium

14:00
Introduction
JiaDe Yu

14:05
Updates in Implant Dermatitis from the North American Contact Dermatitis Group

Amber Atwater

14:30
Important Allergens and Considerations in Children

Kari Martin

14:55
Allergic contact dermatitis in the atopic dermatitis patient: patch testing considerations and important allergens

Jennifer Chen

15:20
Improving the Patient Experience: Contact Allergy Management Program (CAMP
)
Margo Reeder

15:45
Hot New Social Media Influenced Trends in Contact Dermatitis

Marjorie Montanez-Wiscovich

16:10
Patch Testing on Immunosuppressants. Cases and new NACDG consensus guidelines

JiaDe Yu

16:35
Q&A

17:00 – 17:15
Opening Ceremony

Jeanne Duus Johansen, Copenhagen (President of the ESCD)
Andrea Bauer, Dresden (Congress president)

17:15 – 18:30
Jadassohn Lecture, Wahlberg Lecture

Chairs: Jeanne Duus Johansen, Copenhagen / Wolfang Uter, Erlangen

Jadassohn Lecture:
Swen Malte John

Wahlberg Lecture: Immune mechanisms behind local skin reactions to contact allergens
Anders B. Funch

18:30 – 21:00
Get-Together for all participants

Thursday, September 5th, 24

09:00 – 10:00
Plenary 1:
What is new in contact allergy?

Chairs: Mark Wilkinson, Leeds /Jonathan White, London / Richard Brans, Osnabrück

Lectures
09:00
Diagnostic toolsJonathan White, London

09:20
Prevention Richard Brans, Osnabrück

09:40
Allergens: what’s new?Mark Wilkinson, Leeds

10:05 – 11:20
FS1: Molecular profile of hand eczema
Chair: Anna Quaade, Copenhagen / Florentine de Boer, Amsterdam

Transcriptomic profiling of chronic hand eczema skin across subtypes
Anna Sophie Quaade

Stratum corneum levels of immunological markers in patch test reactions to contact allergens and sodium lauryl sulphate
Florentine de Boer

Stratum corneum levels of filaggrin degradation products in patch test reactions to contact allergens and sodium lauryl sulphate
Ivone Jakasa

Eczema or psoriasis – New results of a cohort study using molecular diagnostics in hand dermatoses
Philipp Bentz

Transcriptional differences between vesicular hand eczema and atopic dermatitis
Angelique Voorberg

10:05 – 11:20
FS2: Preservatives
Chair: Olivier Aerts, Antwerp / Suzana Ljubojevic, Zagreb

10:05
“Para-preservatives” in cosmetics causing allergic contact dermatitis

An Goossens

10:25
Challenging clinical cases of contact dermatitis from preservatives (part 1)

Esen Özkaya

10:35
Contact allergy to preservatives in occupational settings

Mihaly Matura

10:55
Challenging clinical cases of contact dermatitis from preservatives (part 2)

Marie-Claude Houle

11:05
Discussion

10:05 – 11:20
FC1: Young researcher
Chair: Henriette Rönsch, Dresden / Elke Weishaar, Heidelberg

10:05
Prevalence, risk factors, and prevention of occupational contact dermatitis among professional cleaners: a systematic review

Farnam Barati Sedeh

10:13
Allergic contact dermatitis from topical antibacterials/antiseptics between 1996 and 2023: A never-ending story of nitrofurazone in Turkey

Zeynep Keskinkaya

10:21
Changes in sensitisation patterns in Chronic Actinic Dermatitis: experience from a single centre over ten years

Ying Teo

10:29
Prevalence and incidence of hand eczema in healthcare workers: a systematic review and meta-analysis

Cara Bieck

10:37
A genome-wide association study of hand eczema identifies locus 20q13.33 and reveals genetic overlap with atopic dermatitis

Fieke Rosenberg

10:45
Epidemiological Study of Patients Patch Tested Under 16 Years Old from the GEIDAC Registry

Nidia Planella Fontanillas

10:53
Legislations and the current practices concerning risk assessment of skin sensitizers in the European Union: a comparative & survey study

Mathias Krogh Pedersen

11:01
Skin sensitization in the Spanish baseline patch test series by age group: a 2019-2023 multicentric prospective study

David Pesqué

11:09
The Sex-specific Association between Wet Work and Hand Eczema in the Dutch General Population: Application of a Job Exposure Matrix to the Lifelines Cohort Study

Marjolein Brands

11:50 – 13:05
FS3: Fragrances and hair cosmetics
Chair: Lina Hagvall, Göteborg / Wolfgang Uter, Erlangen

11:50
Repeated Open Application Test (ROAT) with Hydroperoxides of Linalool – Clinical Reactions

Jeanne Duus Johansen

12:06
Skin penetration of cosmetic chemicals visualised using imaging mass spectrometry

Lina Hagvall

12:22
Skin deep: the distribution

and effects of methylisothiazolinone (MI) and fragrances in the skin
Niamh O’Boyle

12:38
Hair cosmetics contact allergy, occupational and

non-occupational — trends since 1995 in central Europe
Wolfgang Uter

12:54
Antioxidant activity and skin sensitization of eugenol and isoeugenol: two sids of the same coin?

Elena Gimenz-Arnau

11:50 – 13:05
FS 4: Allergic contact dermatitis versus atopic eczema: diagnostic perspectives
Chair: Anne-Birgitte Simonsen, Copenhagen / Margarida Goncalo, Coimbra

11:50
When to suspect ACD in patients with atopic dermatitis

David Pesqué

12:06
Main allergens responsible for CD in patients with atopic dermatitis

Olivier Aerts

12:22
Patch testing patients with atopic dermatitis – pitfalls and advice

Esen Özkaya

12:38
Immediate contact reactions in patients with atopic dermatitis

Margarida Goncalo

12:54
Proposal for a Pediatric European Baseline Series

Anne Birgitte Simonsen

11:50 – 13:05
FC 2
Chair: Anne-Birgitte Simonsen, Copenhagen / Margarida Goncalo, Coimbra

11:50
Nickel Release Market Surveys in Europe and the United States

Katherine Heim

11:58
Multimorbidity in adults with atopic dermatitis in the Dutch general population

Leon Miltner

12:06
Evaluation of patients with positive patch test reactions to rubber additives: a retrospective cohort study from Turkey between 1996 and 2023

İbrahim Halil Aydoğdu

12:14
Long-term effectiveness and safety of dupilumab treatment in patients with moderate-to-severe atopic dermatitis: up to 5-year results from the BioDay registry

Marie-Louise Schuttelaar

12:22
Textile Dye Mix and Disperse Blue Mix: Co-sensitizations and cross-reactivities

Radoslaw Spiewak

12:30
Impurities in Brazilian propolis may cause an erratic increase of positive patch reactions: Results from a clinical epidemiological study in consecutive patients from three Swiss centres

Katharina Piontek

12:38
Frequency of contact sensitisations in Germany, Austria and Switzerland: a trend analysis based on data obtained with the DKG (German) baseline series from the Information Network of Departments of Dermatology (IVDK) from 2018 to 2022

Philipp Drewitz

12:46
Patch Testing with Out of Date Haptens

Rosemary Nixon

12:54
Prevalence and characteristics of skin reactions to diabetes medical devices in adults with type 1 diabetes in southern Sweden

Cecilia Svedman

14:00 – 15:00
Plenary 2:
Skin barrier, immunology and genetics of allergic contact dermatitis: an update

Chair: Charlotte Menne Bonefeld, Copenhagen / Sheila M McSweeney / Sanja Kezic, Amsterdam

Lectures:
14:00
Skin Barrier
Sanja Kezic, Amsterdam

14:20
Regulation, function and maintenance of local memory T cell responses to contact allergens
 – Charlotte Menne Bonefeld, Copenhagen

14:40
How can genetic investigations provide insights into environmentally triggered skin diseases?
Sheila McSweeney, London

15:05 – 16:20
FS5: Hand eczema
Chair: Peter Elsner, Jena / Sonja Molin, Kingston

15:05
Update on contact allergy patterns in hand eczema

Marie-Noëlle Crépy

15:21
Skin Microbioma in hand eczema

Line Nørreslet

15:37
Hand Eczema in Children

Sonja Molin

15:53
Reaching consensus on a core domain set for hand eczema therapeutic trials

Outcome Set- an Update
Henriette Rönsch

16:09
The role of contact allergens in hand eczema: evaluation in terms of frequency, clinical/occupational relevance, and sources of exposure

Yasemin Erdem

15:05 – 16:20
FS6: Allergic contact dermatitis in different bodysites
Chair: Mihaly Matura, Umeå, Sweden / Radoslaw Spiewak, Krakow

15:05
Causes of contact enanthema and eczema in and around the mouth

Radoslaw Spiewak

15:19
Anogenital Contact Eczema: Revealing Hidden Culprits and Recognizing Common Triggers

Suzana Ljubojevic

15:33
Common causes of contact eczema on the legs and feet

An Goossens

15:47
Contact allergy, distribution of symptoms without obvious local exposure

Mihaly Matura

16:01
Disease trends of hand and foot eczema and contact dermatitis in Singapore across a 15-year period

Christian Apfelbacher

16:11
Discussion

15:05 – 16:20
EDU1: Routine patch testing
Chair: Magnus Bruze, Lund

Crucial factors in the reliability of patch tests
Mihaly Matura

How to assess clinical relevance
Magnus Bruze

Stability of patch test preparations
Martin Mowitz

Friday, September 6th, 24

09:00 – 10:00
Plenary 3:
New perspectives in eczema treatment: biologicals, small molecules and patient related outcomes

Chair: Andrea Bauer, Dresden / Annice Heratizadeh, Hannover / Christian Apfelbacher, Magdeburg

Lectures:
09:00
Hand eczema
Andrea Bauer, Dresden

09:20
Atopic eczema
Annice Heratizadeh, Hannover

09:40
Patient related outcomes
Christian Apfelbacher, Magdeburg

10:05 – 11:20
Hot topic: Angioedema, urticaria and atopic dermatitis
Chair: Nicola Wagner, Erlangen / Stefan Beissert, Dresden

10:05
Allergic Contact Dermatitis and Atopy

Richard Brans

10:21
Systemic Therapy of Atopic
Dermatitis in Children and Adolescents
Stefan Beissert

10:37
Angioedema

Petra Staubach

10:53
Urticaria, Differentialdiagnosis and Possible Pitfalls

Nicola Wagner

11:09
Health literacy in hand eczema and atopic dermatitis: Revealing the extent of the problem both in the general and the clinical population

Laura Loman

10:05 – 11:20
FS7: Resins and acrylates
Chair: Kristiina Aalto-Korte, Helsinki / Elena Gimenez-Arnau, Strasbourg

10:05
2-Hydroxyethyl methacrylate: A clinical review of contact allergy and allergic contact dermatitis

Thomas Rustemeyer

10:27
Adverse skin reactions to medical devices used for individuals with diabetes – an update

Cecilia Svedman

10:49
Nine years of patch testing isocyanates in a clinic of occupational dermatology

Kristiina Aalto-Korte

11:11
Allergic contact dermatitis from acrylates in hygiene pads and diapers

Ana Carolina Figueiredo

10:05 – 11:20
FS8: Textiles, footwear
Chair: Esen Özkaya, Istanbul / Katharina Hansel, Perugia

10:05
Current status in textile dermatitis

Marléne Isaksson

10:25
Examples of challenging cases of textile dermatitis & Allergic contact dermatitis to textile dyes misdiagnosed as atopic dermatitis

David Pesqué & Katharina Hansel

10:35
Current status in footwear dermatitis

An Goossens

10:55
Examples of challenging cases of footwear dermatitis

Olivier Aerts & Esen Özkaya

11:10
Patch testing with a textile dye mix without Disperse Orange 3, a multicentre study within the International Contact Dermatitis Research Group

Annarita Antelmi

11:50 – 13:05
FS9: Type I Allergens 
Chair: Monika Raulf, Bochum / Maria Pesonen, Helsinki

11:50
Occupational Type I allergy – relevant allergens and diagnostic tools

Monika Raulf

12:06
Protein contact dermatitis – triggers, diagnosis and management

Vera Mahler

12:22
Occupational contact urticaria due to diethylphthalate

Sari Suomela

12:38
Concomitant occupational contact urticaria/protein contact dermatitis, asthma and rhinitis

Maria Pesonen

12:54
Characterization of clinical phenotypes in contact urticaria syndrome: a retrospective study of 95 cases

David Pesqué

11:50 – 13:05
FS10: Metals and implants
Chair: Peter Thomas, München / Malin Ahlström, Copenhagen

11:50
Metal contact allergy: General aspects

Malin Ahlström

12:06
Components of orthopaedic-surgical metal implants, metal release, biomechanics

Thomas Grupp

12:22
Relevance of proven metal allergy in relation to implant complication

Thomas Rustemeyer

12:38
Metal implant allergy: trends and perspectives

Peter Thomas

12:54
Patch Testing Outcomes and Clinical Management in Suspected Metal Hypersensitivity to Prosthetic Material: A Retrospective Unicentric Study

João Teixeira

11:50 – 13:05
FC3:
Chair: Kathryn Zug, Dartmouth / Mette Sommerlund, Arhus

11:50
Hand eczema, skin barrier function and skin microbiome among waste sorting workers in Norway

Jose Hernan Alfonso

11:58
Contact allergy to screening allergens in adult type 1 diabetes patients

Thanisorn Sukakul

12:06
Contact allergy to medical device-related allergens in adults with type 1 diabetes

Martin Mowitz

12:14
Update on allergens in accelerator free gloves and results of chemical analysis of gloves by tandem mass spectrometry

Eddy Langlois

12:22
Relevance of contact allergy to different groups of allergens

Robert Ofenloch

12:30
Is it possible to design a study in consecutive dermatitis patients to pin-point or rule out patch test sensitization

Marléne Isaksson

12:38
AI Implementation and Regulation: What’s next? A US perspective

James Taylor

12:46
Interference of the positioning of Nickel, Chromium and Cobalt in the results of patch tests

Ida Duarte

12:54
Determining a point of departure for skin sensitization quantitative risk assessment of fragrance ingredients using the GARDskin dose-response assay

Isabell Lee

14:00 – 15:00
Plenary 4:
Patch test:  legal aspects, labelling regulation and availability of patch test materials
Chair: Vera Mahler, Langen / Jeanne Duus Johansen, Copenhagen / Swen Malte John, Osnabrück

Lectures:
14:00
Legal aspects
Vera Mahler, Langen

14:20
Availability of patch test materials
Swen Malte John, Osnabrück

14:40
Labelling regulations
Jeanne Duus Johansen, Copenhagen

15:05 – 16:20
FS11: Drugs
Chair: Luca Stingeni, Perugia / Knut Brockow, München

15:05
Value of skin tests to diagnose drug exanthems

Margarida Goncalo

15:20
Manifestations and diagnosis of corticosteroid allergy

Luca Stingeni

15:35
Management of iodinated contrast media hypersensitivity

Knut Brockow

15:50
Updated standards for drug provocation tests

Kathrin Scherer Hofmeier

16:05
Decoding Beta-Lactam cross reactivity – Longitudinal Patch Testing updated from 2000-2022

Joao Soares

15:05 – 16:20
FS12: Occupational contact dermatitis: skin risk occupations
Chair: Cecilia Svedman, Malmö / Joel DeKoven, Toronto

15:05
Occupational skin disease in healthcare personnel

Nils Hamnerius

15:21
Risk occupation, protective equipment. The armed forces; adhesive allergic contact dermatitis

Jakob Dahlin

15:37
Quality of patch testing patient´s own material-what could be improved

Katja Dicke

15:53
Cleaners’ and HCWs’ ability to recognize hand eczema

Kristina Ibler

16:09
The correlation between self-reported hand eczema and clinically based diagnosis in professional cleaners

Farnam Barati Sedah

15:05 – 16:20
EDU2: How to patch test individual substances?
Chair: Elke Weishaar, Heidelberg / Vera Mahler, Langen
16.30 – 18:00
Gerneral Assembly of ESCD
(For members only)
from 19:00
Social evening (by reservation only)
Steamboat ride on Elbe river

Saturday, September 7th, 24

09:00 – 10:00
Plenary 5:
Contact allergy in different age groups and special localisations

Chair: Ian White, London / Marie-Louise Schuttelaar, Groningen

Lectures:
09:00
Contact allergy across the human lifespan
Ian White, London

09:20
Facial contact dermatitis
Marie-Louise Schuttelaar, Groningen

09:40
Occupational allergic contact dermatitis – affected age groups and body sites
Richard Brans, Osnabrück

10:05 – 11:20
FS13: Occupational contact dermatitis: allergens and exposures
Chair: Richard Brans, Osnabrück / Katri Suuronen, Helsinki

10:05
Exposure to contact allergens in hairdressers

Cara Bieck

10:21
Characterization of patients with occupational allergy to two new epoxy hardener compounds

Sari Suomela

10:37
Acrylates in artificial nails: can we rely on the listed ingredients?

Katri Suuronen

10:53
Contact allergies in construction workers: new and ongoing challenges

Jakob Dahlin

11:09
Contact dermatitis in food handlers in Trieste (Northern Italy)

Francesa Larese Filon

10:05 – 11:20
Hot topic 2: Cosmetics – clinical problems and risk assessment
Chair: An Gossens, Leuven / Pieter-Jan Coenraads, Groningen

10:05
A very short intro to cosmetic sensitisation

Pieter-Jan Coenraads

10:20
Read my lips: 10 challenging cases of allergic contact cheilitis

Olivier Aerts

10:35
Sensitizers in cosmetics-perspective of a risk assessor

Petra Kern

10:50
Polished perils: allergic contact dermatitis caused by nail cosmetics

Angelique Voorberg

11:05
Sensitizing impurities and additives found in cosmetic raw materials

Ewa Daniel

10:05 – 11:20
EDU3: How to diagnose contact uricaria and protein contact dermatitis
Chair: Ana Gimenez-Arnau, Barcelona

10:05
Epidemiology and Occupational relevance of the CUS

Jose Hernan Alfonso

10:21
Contact Urticaria, diagnosis and management

Mojca Bizjak

10:37
Protein Contact Dermatitis diagnosis and management

Charlotte Gotthard Mortz

10:53
Update on CUS clinical diagnosis, relevant triggers and treatment

Ana Gimenez-Arnau

11:09
Discussion

11:50 – 13:05
FS15: Tattoos
Chair: Steffen Schubert, Göttingen / Thomas Rustemeyer, Amsterdam

11:50
Adverse reactions to tattoos – clinical pictures

Thomas Rustemeyer

12:05
Tattoos inks – hazards, biodistribution and effects of irradiation

Ines Schreiver

12:20
The DKG tattoo series

Steffen Schubert

12:35
Patch testing pigments and decomposition products thereof in patients with suspected pigment allergy

Norbert Ipenburg

12:50
Tracking nickel-specific T cells in skin biopsies – a new way to established clinical relevance and to evaluate patch test reactions

Katherina Siewert

11:50 – 13:05
FS14: Rubber
Chair: Jakob Schwensen, Copenhagen / Marie-Noëlle Crépy, Paris

11:50
Rubbers accelerators: occupational contact dermatitis and high risk occupations

Jakob Schwensen

12:05
Update on rubber gloves allergens

Marie-Noëlle Crépy

12:20
Cross-reactivity between thiurams and dithiocarbamates

Christoffer Kursawe Larsen

12:35
CEDMC, a new contact allergen in nitrile gloves

Ola Bergendorff

12:50
How to assess suitability of protective gloves against plastic chemicals?

Katri Suuronen

11:50 – 13:05
ESSCA / EBS working group meeting
Chair: Wolfgang Uter, Erlangen / Olivier Aerts, Antwerp

The European Surveillance System on Contact Allergies (ESSCA): current contribution and challenges
Wolfgang Uter

The European Baseline Series (EBS) working group behind the scenes: Who We Are, What We Do, and How We Excel
Olivier Aerts

13:10 – 13:25
Closing Ceremony and Preview ESCD 2026
Poster awards, travel grants and lecture awards