ORPHA:163931
Acrodermatitis continua of Hallopeau
Publications
442
85.8th percentile
Trials
1
Interventional, condition-specific
Researchers
844
Distinct authors in sample
Gene link
—
Readiness
2/6
Stages with a signal
Clinical definition (Orphanet)
A rare, genetic, chronic, recurrent, slowly , epidermal disease characterized by small, sterile, pustular eruptions, involving the nails and surrounding skin of the fingers and/or toes, which coalesce and burst, leaving erythematous, atrophic skin where new pustules develop. Onychodystrophy is frequently associated and anonychia and osteolysis are reported in severe cases. Local expansion (to involve the hands, forearms and/or feet) and involvement of mucosal surfaces (e.g. conjunctiva, tongue, urethra) may be observed.
How rare: 1-9 / 100 000 — about one to nine people per hundred thousand.
Research stages
Trial readiness signals
Where this condition sits on an open-data research pipeline — not how close a treatment is, and not medical advice. Empty stages often mean “not in these databases under this Mondo ID,” not “impossible.”
2/6 stages with a signal
An interventional trial matched this condition name on ClinicalTrials.gov — see trials below.
- Gene identifiedNot found
No GenCC disease–gene assertion in this build
- LiteraturePresent
442 matched papers (324 in last 10 years) Source
- Phenotype characterisedNot checked
Not yet enriched from Monarch / HPO
- Animal modelNot checked
Not yet enriched from Monarch / Alliance
- Orphan designationNot checked
FDA/EMA orphan-drug designation not enriched yet
- Interventional trialPresent
1 matched on ClinicalTrials.gov
Biology
Genes and phenotypes
Gene–disease validity from GenCC, plus phenotypes and animal models joined from Monarch Initiative via Mondo ID — not a clinical diagnosis aid.
Do we know what causes it?
Not yet — the cause hasn't been pinned down in GenCC.
No strong gene–disease assertion joined for this Orphanet entity.
Phenotypes (Monarch / HPO)
Not enriched in this build — Monarch phenotype joins were not run for this record.
Animal models (Monarch / Alliance)
Not enriched in this build.
Literature
Is anyone studying this?
442
442 papers have ever been published on this condition (under this name). For scale, breast cancer has over 700,000. Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=5449) is 41.
442 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 41 (publications denominator n=5449).
324 in the last 10 years · medium confidence · 85.8th percentile (publications denominator)
Phrase hits: 442 · MeSH hits: 0
Who's working on it?
844
Distinct author names in 200 sampled papers — named people below.
Who's working on it?
People publishing on this condition (sampled Europe PMC records). Affiliation is the most recent found in that sample.
- 01Chen Y8 papers · 2026
Boehringer Ingelheim (China) Investment Corporation Limited, Shanghai, China.
Papers in Europe PMC - 02Tsai TF8 papers · 2025
Department of Dermatology, National Taiwan University Hospital, Taipei, Taiwan.
Papers in Europe PMC - 03Li C6 papers · 2026
Department of Dermatology, Tianjin Institute of Integrative Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China.
Papers in Europe PMC - 04Mössner R6 papers · 2026
Dermatologie, Venerologie und Allergologie, Universitätsmedizin Göttingen, Göttingen, Deutschland.
Papers in Europe PMC - 05Wang Y6 papers · 2026
Department of Dermatology, The Affiliated Children's Hospital of Xiangya School of Medicine, Hunan Children's Hospital, Central South University, Changsha, Hunan, 410007, People's Republic of China.
Papers in Europe PMC - 06Zhang Y6 papers · 2026
Department of Dermatology, the Affiliated Hospital of Jiangsu University, Zhenjiang, China.
Papers in Europe PMC - 07Bachelez H5 papers · 2022
As part of the supplement series GRAPPA 2020, this report was reviewed internally and approved by the Guest Editors for integrity, accuracy, and consistency with scientific and ethical standards. K. Callis Duffin, MD, MS, Department of Dermatology, University of Utah, Salt Lake City, Utah, USA; H. Bachelez, MD, PhD, Department of Dermatology, Hôpital Saint-Louis, AP-HP, and Laboratory of Genetic Skin Diseases, Imagine Institute, Université de Paris, Paris, France; P.J. Mease, MD, Rheumatology Research, Swedish Medical Center/ Providence St. Joseph Health and University of Washington School of Medicine, Seattle, Washington, USA; C. Rosen, Division of Dermatology, Toronto Western Hospital, University of Toronto, Toronto, Ontario, Canada; A. Garg, MD, Chair, Department of Dermatology, Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA; E. Zudak, BFA, Vice President, Strategic Partnerships, WCG Trifecta, Indianapolis, Indiana, USA; O. Elkayam, MD, V. Furer, MD, Rheumatology Department, Tel Aviv Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; J.F. Merola, MD, MMSc, Harvard Medical School, Brigham and Women's Hospital, Department of Dermatology and Department of Medicine, Division of Rheumatology and Immunology, Boston, Massachusetts, USA; J. Chau, GRAPPA Patient Research Partner, Hong Kong; M. Kishimoto, MD, Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan; P.S. Helliwell, MD, PhD, Professor of Clinical Rheumatology, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Harehills Lane, Leeds, and NIHR Leeds Biomedical Research Centre, Leeds, UK. KCD received grants/is an investigator for Amgen, AbbVie, Celgene, Eli Lilly, Janssen, Bristol Myers Squibb, Stiefel, Novartis, Pfizer, Sienna, UCB, Regeneron, Boehringer Ingelheim; is on the speakers bureau for Novartis (nonpromotional only); and is a consultant/on the advisory board for Amgen, AbbVie, Celgene, Eli Lilly, Janssen, Bristol Myers Squibb, Stiefel, Novartis, Pfizer, Sienna, UCB, Ortho Dermatologic, and Boehringer Ingelheim. PJM received research grants, consultation fees, and/or speaker honoraria from AbbVie, Amgen, Boehringer Ingelheim, Bristol Myers Squibb, Eli Lilly, Galapagos, Gilead, GlaxoSmithKline, Janssen, Novartis, Pfizer, SUN Pharma, and UCB. AG received grants/is an investigator for the National Psoriasis Foundation, UCB, Incyte; and is a consultant/on the advisory board for AbbVie, Amgen, Asana Biosciences, Bristol Myers Squibb, Boehringer Ingelheim, Incyte, Janssen, Pfizer, UCB, and Viela Biosciences. JFM is consultant and/or investigator for Merck, Bristol Myers Squibb, AbbVie, Dermavant, Eli Lilly, Novartis, Janssen, UCB, Sanofi, Regeneron, Arena, Sun Pharma, Biogen, Pfizer, EMD Sorono, Avotres, and Leo Pharma. MK receives consulting fees and/or honoraria from AbbVie, Amgen-Astellas BioPharma, Asahi-Kasei Pharma, Astellas, Ayumi Pharma, BMS, Celgene, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead, Janssen, Kyowa Kirin, Novartis, Ono Pharma, Pfizer, Tanabe-Mitsubishi, Teijin Pharma, and UCB Pharma. OE receives consulting fees or honoraria from AbbVie, Eli Lilly, Gilead, Janssen, Novartis, Roche, Pfizer, Boehringer Ingelheim, and Novartis. This paper does not require institutional review board approval. Address correspondence to Dr. K. Callis Duffin, University of Utah, 4A330 Dermatology, SOM, 30 North 1900 East, Salt Lake City, UT 84132, USA. Email: Kristina.callis@hsc.utah.edu.
Papers in Europe PMC - 08Chuamanochan M5 papers · 2024
Division of Dermatology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
Papers in Europe PMC - 09Wang Z5 papers · 2026
Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China, anjiuvsqishi@126.com.
Papers in Europe PMC - 10Xu Z5 papers · 2026
Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China.
Papers in Europe PMC
Clinical research
Is a treatment being tested?
1
interventional trials for this specific condition
1 interventional trial matched this specific condition name; none in our sample are currently recruiting.
Data as of 27 July 2026
1 interventional trial — more than 73% of diseases in the trials denominator have none at all (5114 of 7003; this disease is at the 76.8th percentile).
medium confidence · 76.8th percentile (trials denominator)
Recruiting interventional trials
From the matched ClinicalTrials.gov set
1 interventional trials matched after quoted-phrase search and title/condition post-filter.
No currently recruiting studies in the matched set. Open the same search on ClinicalTrials.gov.
Where to find support
We do not yet link condition-specific patient organisations. These umbrella groups support undiagnosed and ultra-rare families:
India — NPRD
Last verified 2026-07-26This ORPHAcode is not on our curated NPRD list (direct or Mondo-parent match). That does not decide clinical eligibility; families in India should ask a notified Centre of Excellence about current coverage.
Hand-curated for this project. ORPHAcode mappings are best-effort and may be incomplete or imprecise for umbrella categories. Parent (Mondo) matches mean the policy lists a broader category — confirm eligibility with a Centre of Excellence. Financial entitlements summarised from public policy statements and may change. This is not official government guidance.
How we counted this
Europe PMC query (preferred label + any corrected label + Orphanet and Mondo exact synonyms, stoplisted; unioned with resolved MeSH labels when available). UMLS / OMIM / NCIT cross-references are stored on the overview but are not added to the query string.
"Acrodermatitis continua of Hallopeau" OR "Acrodermatitis continua of the Hallopeau"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Acrodermatitis continua of Hallopeau" OR "Acrodermatitis continua of the Hallopeau"
Interventional trials matched via: phrase (mesh = registered under a MeSH descriptor no name phrase would catch; recall-expansion = gene / selected parent terms used only for trials).
Study-type breakdown: 1 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
Query health: ok — strategies attempted: phrase; with hits: phrase
Run this search on ClinicalTrials.gov
Confidence reasoning
- Preferred label is multi-word and distinctive
- No synonyms dropped by stoplist
- "Acrodermatitis continua of Hallopeau" also appears on ORPHA:404546
Ingested 2026-07-27T08:14:33.820Z