ORPHA:178461
X-linked myopathy with postural muscle atrophy
Also known as: XMPMA
Query health: suspect — Only one of 2 strategies returned hits (phrase).
Publications
71
46.9th percentile
Trials
0
Interventional, condition-specific
Researchers
521
Distinct authors in sample
Gene link
FHL1
Definitive
Readiness
3/6
Stages with a signal
Clinical definition (Orphanet)
A rare muscular characterized by an adult-onset scapulo-axio-peroneal . Clinical presentation includes shoulder girdle atrophy, scapular winging, axial muscular atrophy of postural muscles combined with a generalized hypertrophy. Typically, neck rigidity, rigid spine, Achilles tendon shortening, and respiratory insufficiency later in disease course are present.
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:0010401
- OMIM:300696
- UMLS:C2678055
Additional Mondo synonyms (1)
myopathy, X-linked, with postural muscle atrophy, X-linked recessive
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.”
3/6 stages with a signal
No specific-condition interventional trial, but broader-category trials exist — discuss eligibility with a clinician.
- Gene identifiedPresent
Definitive — FHL1
- LiteraturePresent
71 matched papers (35 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 trialPartial
None under the specific name; 181 for broader category myopathy
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 (FHL1).
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?
71
71 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.
71 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).
35 in the last 10 years · high confidence · 46.9th percentile (publications denominator)
Phrase hits: 71 · MeSH hits: 0
Who's working on it?
521
Distinct author names in 71 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.
- 01Schoser B9 papers · 2024
Friedrich-Baur Institute, Department of Neurology, Ludwig-Maximilians University Munich, Ziemssenstr. 1a, 80336 Munich, Germany. bschoser@med.uni-muenchen.de
Papers in Europe PMC - 02Windpassinger C7 papers · 2025
Neurogenetics Section, The Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, M5T 1R8, Canada. christian.windpassinger@meduni-graz.at
Papers in Europe PMC - 03Bönnemann CG5 papers · 2023
Neuromuscular and Neurogenetic Disorders of Childhood Section, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA.
Papers in Europe PMC - 04Quasthoff S5 papers · 2020
Department of Neurology, Medical University of Graz, Auenbruggerplatz 22, 8036, Graz, Austria.
Papers in Europe PMC - 05Bonne G4 papers · 2014
Inserm, U974, Paris F-75013, France; Sorbonne Universités, UPMC Univ Paris 06, Myology Center of Research, UM76; CNRS FRE 3617, Institut de Myologie, Paris F-75013, France; AP-HP, Groupe Hospitalier Pitié-Salpêtrière, U.F. Cardiogénétique et Myogénétique Moléculaire, Service de Biochimie Métabolique, Paris F-75013, France. Electronic address: g.bonne@institut-myologie.org.
Papers in Europe PMC - 06Mitchell CA4 papers · 2014
Department of Biochemistry & Molecular Biology, Faculty of Medicine, Nursing & Health Sciences, Monash University, Clayton, VIC 3800, Australia christina.mitchell@monash.edu.
Papers in Europe PMC - 07Schessl J4 papers · 2013
Division of Neurology, The Children's Hospital of Philadelphia, Pennsylvania Muscle Institute, University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
Papers in Europe PMC - 08Straub V4 papers · 2022
John Walton Muscular Dystrophy Research Centre, Newcastle University and Newcastle Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.
Papers in Europe PMC - 09McGrath MJ3 papers · 2014
Department of Biochemistry & Molecular Biology, Faculty of Medicine, Nursing & Health Sciences, Monash University, Clayton, VIC 3800, Australia.
Papers in Europe PMC - 10Wehnert M3 papers · 2020
Institute of Human Genetics, University of Greifswald, Greifswald, Germany.
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). 181 trials are registered for myopathy, the broader category — shown separately because they may or may not enrol this specific subtype.
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.
181 interventional trials matched myopathy, the broader category — listed below. Those studies are not counted in the condition-specific total.
Broader category: myopathy
181
Interventional trials for the parent category, exclusive of NCT IDs already counted above. Eligibility for this subtype is not guaranteed.
Worth raising with a clinician. How we count trials.
Recruiting under the broader category
- NCT05312424·RECRUITING·Annatto-derived GG for Statin-associated Myopathy
Conditions: Myopathy; Primary·Matched via name phrase
- NCT07038447·ENROLLING BY INVITATION·A Study of KITE-363 in Participants With Refractory Autoimmune Diseases
Conditions: Systemic Lupus Erythematosus · Lupus Nephritis · Systemic Sclerosis · Idiopathic Inflammatory Myopathy·Matched via name phrase
- NCT06371417·RECRUITING·Phase 1b Trial of RAY121 in Immunological Diseases (RAINBOW Trial)
Conditions: Antiphospholipid Syndrome (APS) · Bullous Pemphigoid (BP) · Behçet's Syndrome (BS) · Dermatomyositis (DM)·Matched via name phrase
- NCT06822231·RECRUITING·High-Tech Rehabilitation Pathway for Acute Adult Neuromuscular Diseases - Fit4MedRob-Acute MND Project
Conditions: Critical Illness Myopathy · Guillain Barré Syndrome · Critical Illness Polyneuromyopathy (CIPNM)·Matched via name phrase
- NCT07160205·RECRUITING·Safety and Efficacy of ULSC on Disease Severity and Steroid Tapering in Participants With Dermatomyositis/ Polymyositis (DM/PM), Also Known as Idiopathic Inflammatory Myopathy (IIM)
Conditions: Idiopathic Inflammatory Myositis (IIM) · DERMATOMYOSITIS OR POLYMYOSITIS·Matched via name phrase
- NCT05982119·RECRUITING·Assessments in Patients With Muscular Pathology and in Control Subjects : The ActiLiège Next Study
Conditions: Duchenne Muscular Dystrophy · Fascioscapulohumeral Muscular Dystrophy · Myotonic Dystrophy 1 · Charcot-Marie-Tooth·Matched via name phrase
- NCT06980597·RECRUITING·A Study of OL-108 in Relapsed/Refractory Autoimmune Diseases
Conditions: Systemic Lupus Erythematosus (SLE) · Idiopathic Inflammatory Myopathy (IIM) · Systemic Sclerosis (SSc) · ANCA Associated Vasculitis (AAV)·Matched via name phrase
- NCT07052929·RECRUITING·Study of ASP2957 in Male Participants With X-linked Myotubular Myopathy Who Need Ventilators
Conditions: X-Linked Myotubular Myopathy·Matched via name phrase
- NCT07339540·RECRUITING·the Safety and Efficacy of Targeted BCMA In Vivo LV Injection for Recurrent or Refractory Autoimmune Diseases
Conditions: Recurrent or Refractory Systemic Lupus Erythematosus · Recurrent or Refractory IgG4 Related Diseases · Recurrent or Refractory Systemic Sclerosis · Recurrent or Refractory Idiopathic Inflammatory Myopathy·Matched via name phrase
- NCT05979441·ENROLLING BY INVITATION·A Study to Assess the Long-term Safety and Efficacy of a Subcutaneous Formulation of Efgartigimod in Adults With Active Idiopathic Inflammatory Myopathy
Conditions: Myositis · Active Idiopathic Inflammatory Myopathy · Dermatomyositis · Polymyositis·Matched via name phrase
- NCT07236801·RECRUITING·Exploratory Clinical Study on YTS109 Cell Therapy for Autoimmune Diseases
Conditions: Systemic Lupus Erythematosus (SLE) · Systemic Sclerosis · Sjogren's Syndrome (SS) · Inflammatory Myopathy·Matched via name phrase
- NCT07229144·RECRUITING·OM336 in Seropositive Autoimmune Diseases
Conditions: Sjogrens Disease · Idiopathic Inflammatory Myopathy (IIM)·Matched via name phrase
- NCT03749538·RECRUITING·Acute Transcranial Direct Current Stimulation in Patients With Systemic Autoimmune Myopathies
Conditions: Myopathy · Neurologic Manifestations · ElectroPhys: Myopathy·Matched via name phrase
- NCT06154252·RECRUITING·RESET-Myositis: An Open-Label Study to Evaluate the Safety and Efficacy of CABA-201 in Subjects With Active Idiopathic Inflammatory Myopathy or Juvenile Idiopathic Inflammatory Myopathy
Conditions: Idiopathic Inflammatory Myopathy · Dermatomyositis · Anti-Synthetase Syndrome · Immune-Mediated Necrotizing Myopathy·Matched via name phrase
- NCT07274267·RECRUITING·Inspiratory Muscle Training in Patients With Inflammatory Myopathy
Conditions: Inflammatory Myopathies·Matched via name phrase
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.
"X-linked myopathy with postural muscle atrophy" OR "XMPMA" OR "myopathy, X-linked, with postural muscle atrophy, X-linked recessive"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"X-linked myopathy with postural muscle atrophy" OR "XMPMA" OR "myopathy, X-linked, with postural muscle atrophy, X-linked recessive" OR "FHL1" OR "X-linked Emery-Dreifuss muscular dystrophy"
Recall-expansion terms: FHL1, X-linked Emery-Dreifuss muscular dystrophy
Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
Parent-category trials query:
"myopathy"
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 2026-07-27T08:52:01.310Z
