RARE DISEASERESEARCH ATLAS

ORPHA:40

Acromesomelic dysplasia, Maroteaux type

high confidenceDisorder

Query health: suspect — Only one of 2 strategies returned hits (phrase).

Publications

84

57.5th percentile

Trials

0

Interventional, condition-specific

Researchers

562

Distinct authors in sample

Gene link

NPR2

Definitive

Readiness

2/6

Stages with a signal

Clinical definition (Orphanet)

A rare acromesomelic characterized by severe dwarfism (adult height <120 cm), both axial and appendicular involvement (shortening of the middle and distal segments of limbs and vertebral shortening), and with normal facial appearance and intelligence. It is a less severe form than acromesomelic , Grebe type and acromesomelic , Hunter-Thomson type .

How rare: <1 / 1 000 000 — fewer than one in a million. In a city the size of Kolkata, that might mean on the order of fifteen people.

Orphanet entry

Cross-references

Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.

Additional Mondo synonyms (2)

acromesomelic dysplasia 1, Maroteaux type · acromesomelic dysplasia, Maroteaux type

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

No matched interventional trial; the gene is known and literature exists — preclinical or natural-history work may still be the practical next step.

  1. Gene identifiedPresent

    Definitive — NPR2

  2. LiteraturePresent

    84 matched papers (61 in last 10 years) Source

  3. Phenotype characterisedNot checked

    Not yet enriched from Monarch / HPO

  4. Animal modelNot checked

    Not yet enriched from Monarch / Alliance

  5. Orphan designationNot checked

    FDA/EMA orphan-drug designation not enriched yet

  6. Interventional trialNot found

    No matched interventional trial under our ClinicalTrials.gov rules

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?

Yes — we know a specific gene responsible (NPR2).

GenCC classification: Definitive.

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?

84

84 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.

84 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).

61 in the last 10 years · high confidence · 57.5th percentile (publications denominator)

Phrase hits: 84 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

562

Distinct author names in 84 sampled papers — named people below.

Who's working on it?

No interventional trial matched this name; these authors publish on it in the sampled literature — a practical starting point for contact.

  1. 01
    Espiner EA5 papers · 2022

    Department of Medicine, University of Otago, Christchurch 8011, New Zealand.

    Papers in Europe PMC
  2. 02
    Olney RC5 papers · 2015

    Division of Endocrinology, Nemours Children's Clinic, Jacksonville, FL 32207, USA. rolney@nemours.org

    Papers in Europe PMC
  3. 03
    Potter LR4 papers · 2021

    Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, United States.

    Papers in Europe PMC
  4. 04
    Warman ML4 papers · 2015
    Papers in Europe PMC
  5. 05
    Ahmad W3 papers · 2023

    Department of Biochemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan.

    Papers in Europe PMC
  6. 06
    Jee YH3 papers · 2019

    Program in Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, CRC, Room 1-3330, 10 Center Drive MSC 1103, Bethesda, MD 20892-1103, USA. Electronic address: jeeyh@mail.nih.gov.

    Papers in Europe PMC
  7. 07
    Legeai-Mallet L3 papers · 2021

    Imagine Institute, Inserm U1163, Université Paris Descartes, Service de Génétique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France.

    Papers in Europe PMC
  8. 08
    Prickett TC3 papers · 2015
    Papers in Europe PMC
  9. 09
    Robinson JW3 papers · 2021

    Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Minneapolis, United States.

    Papers in Europe PMC
  10. 10
    Wang L3 papers · 2023

    BGI-Wuhan Clinical Laboratory, BGI-Shenzhen, 430074, Wuhan, China.

    Papers in Europe PMC

Clinical research

Is a treatment being tested?

0

interventional trials for this specific condition

No interventional trial testing a treatment matched this specific condition name on ClinicalTrials.gov (observational studies and pan-disease registries are listed separately when present).

Data as of 27 July 2026

No matched interventional trials. This is true for 73% of diseases in the trials denominator (5114 of 7003). Here are the researchers publishing on it.

high confidence · 36.5th percentile (trials denominator)

Recruiting interventional trials

From the matched ClinicalTrials.gov set

No interventional trial testing a treatment was found for this specific condition name on ClinicalTrials.gov.

Broader category acromesomelic dysplasia also has no matched interventional trial. See who's working on it — people publishing on this disease are often the practical next contact when no trial is listed.

Broader category: acromesomelic dysplasia

0

Interventional trials for the parent category, exclusive of NCT IDs already counted above. Eligibility for this subtype is not guaranteed.

Parent-category matching found a broader label but no interventional trials under it. How we count trials.

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 2026-07-26

This 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.

"Acromesomelic dysplasia, Maroteaux type" OR "acromesomelic dysplasia 1, Maroteaux type"

Run this search on Europe PMC

ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):

"Acromesomelic dysplasia, Maroteaux type" OR "acromesomelic dysplasia 1, Maroteaux type" OR "NPR2"

Recall-expansion terms: NPR2

Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.

Parent-category trials query:

"acromesomelic dysplasia"

Query health: suspect — strategies attempted: phrase, recall-expansion; with hits: phrase

Run this search on ClinicalTrials.gov

Confidence reasoning

  • Preferred label is multi-word and distinctive
  • No synonyms dropped by stoplist
  • No label/synonym collisions with other diseases in this corpus

Ingested 2026-07-26T12:11:51.029Z