ORPHA:659702
Intrauterine growth retardation-micrognathia-short stature-facial dysmorphism-rhizomelic shortening syndrome
Also known as: ARCN1-related syndrome
Query health: suspect — Only one of 2 strategies returned hits (phrase).
Publications
12
28.7th percentile
Trials
0
Interventional, condition-specific
Researchers
132
Distinct authors in sample
Gene link
ARCN1
Strong
Readiness
2/6
Stages with a signal
Clinical definition (Orphanet)
A rare multiple anomalies/ syndrome characterized by intrauterine growth restriction, microcephaly, short stature, rhizomelic shortening and facial dysmorphism (including prominent forehead, downslanted palpebral fissures, bulbous nasal tip, large or prominent ears and notably severe micrognathia). is commonly reported, may also be present. Additional clinical features may include genitourinary malformations in males, transient liver dysfunction, glycosylation abnormalities, giant cell hepatitis, hepatoblastoma, and cataracts. Severity of the disease varies from mild to very severe which may lead to intrauterine death or stillbirth in some cases.
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.
Cross-references
Joined from Mondo / Orphanet. MeSH labels may enter searches; UMLS / OMIM / NCIT are stored for reference.
- MONDO:0014948
- OMIM:617164
- UMLS:C4310686
Additional Mondo synonyms (3)
SRMMD · short stature, rhizomelic, with microcephaly, micrognathia, and developmental delay · short stature, rhizomelic, with microcephaly, micrognathia, and developmental delay; SRMMD
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.
- Gene identifiedPresent
Strong — ARCN1
- LiteraturePresent
12 matched papers (11 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 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 (ARCN1).
GenCC classification: Strong.
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?
12
12 papers have ever been indexed 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.
12 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).
11 in the last 10 years · high confidence · 28.7th percentile (publications denominator)
Phrase hits: 12 · MeSH hits: 0
Who's working on it?
132
Distinct author names in 12 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.
- 01Izumi K2 papers · 2022
Research Center for Epigenetic Disease, Institute of Molecular and Cellular Biosciences, The University of Tokyo, Tokyo 113-0032, Japan; Division of Medical Genetics, Nagano Children's Hospital, Azumino 399-8205, Japan; Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA. Electronic address: izumik1@email.chop.edu.
Papers in Europe PMC - 02Ackermann AM1 paper · 2022
Division of Endocrinology and Diabetes, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA.
Papers in Europe PMC - 03Akiyama T1 paper · 2016
Laboratory of Molecular and Genetic Information, Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan.
Papers in Europe PMC - 04Alajaji S1 paper · 2021
King Saud bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia.
Papers in Europe PMC - 05Alfadhel M1 paper · 2021
Division of Genetics, Department of Pediatrics, King Abdullah Specialized Children Hospital, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia.
Papers in Europe PMC - 06Alfares A1 paper · 2021
Department of Pediatrics, College of Medicine, Qassim University, Qassim, Saudi Arabia.
Papers in Europe PMC - 07Aloraini T1 paper · 2021
Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City, Riyadh, Saudi Arabia.
Papers in Europe PMC - 08AlSubaie L1 paper · 2021
Division of Genetics, Department of Pediatrics, King Abdullah Specialized Children Hospital, King Abdulaziz Medical City, Ministry of National Guard Health Affairs (MNGHA), Riyadh, Saudi Arabia.
Papers in Europe PMC - 09
- 10Arakawa M1 paper · 2016
Division of Medical Genetics, Nagano Children's Hospital, Azumino 399-8205, Japan.
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.
See who's working on it — people publishing on this disease are often the practical next contact when no trial is listed.
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.
"Intrauterine growth retardation-micrognathia-short stature-facial dysmorphism-rhizomelic shortening syndrome" OR "ARCN1-related syndrome" OR "SRMMD" OR "short stature, rhizomelic, with microcephaly, micrognathia, and developmental delay" OR "short stature, rhizomelic, with microcephaly, micrognathia, and developmental delay; SRMMD"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Intrauterine growth retardation-micrognathia-short stature-facial dysmorphism-rhizomelic shortening syndrome" OR "ARCN1-related syndrome" OR "SRMMD" OR "short stature, rhizomelic, with microcephaly, micrognathia, and developmental delay" OR "short stature, rhizomelic, with microcephaly, micrognathia, and developmental delay; SRMMD" OR "ARCN1"
Recall-expansion terms: ARCN1
Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
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 2026-07-27T20:06:55.791Z