RARE DISEASERESEARCH ATLAS

ORPHA:570

Moebius syndrome

low confidenceDisorder

Also known as: Möbius syndrome

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

Publications

2,859

Trials

0

Interventional, condition-specific

Researchers

1,027

Distinct authors in sample

Gene link

LMX1A, PLXND1, REV3L

Strong

Readiness

2/6

Stages with a signal

Clinical definition (Orphanet)

A very rare cranial dysinnervation disorder characterized by unilateral or bilateral non facial palsy (VII cranial nerve) with impairments of ocular abduction (VI cranial nerve). It can also be associated with other cranial nerves palsies, orofacial anomalies and limb defects.

How rare: 1-9 / 100 000 — about one to nine people per hundred thousand.

Orphanet entry

Cross-references

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

Additional Mondo synonyms (7)

MBS · Mobius syndrome · Moebius Syndrome · Moebius sequence · Moebius syndrome, Isolated cases · congenital facial diplegia · oromandibular-limb hypogenesis spectrum

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

    Strong — LMX1A, PLXND1, REV3L

  2. LiteraturePresent

    2,859 matched papers (1,223 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 (LMX1A, PLXND1, REV3L).

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?

2,859

2,859 papers have been published on this condition. That is a real research literature — still far smaller than common diseases (breast cancer: over 700,000 papers). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=5449) is 41.

2,859 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).

1,223 in the last 10 years · low confidence

Phrase hits: 2,859 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

1,027

Distinct author names in 200 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
    Telich-Tarriba JE6 papers · 2026

    Universidad Nacional Autonoma de Mexico, Mexico City, Mexico.

    Papers in Europe PMC
  2. 02
    Webb BD6 papers · 2026

    Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.

    Papers in Europe PMC
  3. 03
    Cardenas-Mejia A5 papers · 2026

    Universidad Nacional Autonoma de Mexico, Mexico City, Mexico.

    Papers in Europe PMC
  4. 04
    Engle EC5 papers · 2026

    Department of Neurology, Boston Children's Hospital, Boston, Massachusetts, USA.

    Papers in Europe PMC
  5. 05
    Jabs EW5 papers · 2025

    Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.

    Papers in Europe PMC
  6. 06
    Manoli I5 papers · 2026

    Medical Genomics and Metabolic Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA.

    Papers in Europe PMC
  7. 07
    Collins FS4 papers · 2026

    Medical Genomics and Metabolic Genetics Branch, Immediate Office of the Director, National Institutes of Health, Bethesda, Maryland, USA.

    Papers in Europe PMC
  8. 08
    Ferrari PF4 papers · 2022

    Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.

    Papers in Europe PMC
  9. 09
    Griffiths LR4 papers · 2026

    Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia.

    Papers in Europe PMC
  10. 10
    Maksemous N4 papers · 2026

    Genomics Research Centre, Centre for Genomics and Personalised Health, School of Biomedical Sciences, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia.

    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. 3 observational studies did — shown below because natural-history and cohort work can be an important step toward a trial.

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.

low 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.

Observational and natural-history studies

3 observational studies match this condition. These do not test a treatment and are not counted in the interventional-trial headline, but they are genuine research: natural-history work often defines the endpoints needed for a future rare-disease trial, and families may be able to enroll.

Recruiting or not-yet-recruiting

Open the complete matched 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 2026-07-26

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.

"Moebius syndrome" OR "Möbius syndrome" OR "Mobius syndrome" OR "Moebius sequence" OR "Moebius syndrome, Isolated cases" OR "congenital facial diplegia" OR "oromandibular-limb hypogenesis spectrum"

Run this search on Europe PMC

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

"Moebius syndrome" OR "Möbius syndrome" OR "Mobius syndrome" OR "Moebius sequence" OR "Moebius syndrome, Isolated cases" OR "congenital facial diplegia" OR "oromandibular-limb hypogenesis spectrum" OR "LMX1A" OR "PLXND1" OR "REV3L"

Recall-expansion terms: LMX1A, PLXND1, REV3L

Study-type breakdown: 0 interventional · 3 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

Synonyms dropped by stoplist: MBS

Confidence reasoning

  • Preferred label is short or not clearly distinctive
  • 1 synonym(s) dropped by stoplist (may under-count)
  • No label/synonym collisions with other diseases in this corpus

Ingested 2026-07-26T14:23:26.664Z