Mucopolysaccharidosis type 1
diseaseOn this page
Also known as Alpha-L-iduronidase deficiencyattenuated MPS I (subtype, includes Hurler-Scheie and Scheie syndrome)Hurler syndromeHurler syndrome (subtype)Hurler-Scheie syndrome (subtype)IDUA deficiencylipochondrodystrophyMPS 1MPS IMPS1MPSIMucopolysaccharidosis Type Isevere MPS I (subtype, also known as Hurler syndrome)
Summary
Mucopolysaccharidosis type 1 (MONDO:0001586) is a disease caused by IDUA (GenCC Definitive), with 2 cohort genes and 33 clinical trials. Top therapeutic interventions include laronidase, cyclophosphamide anhydrous, and terfenadine.
At a glance
- Prevalence: 1-9 / 1 000 000 (Europe) [Orphanet-validated]
- Causal gene: IDUA (GenCC Definitive)
- Cohort genes: 2
- ClinVar variants: 1,594
- Phenotypes (HPO): 57
- Clinical trials: 33
Clinical features
Epidemiology
Prevalence records
28 prevalence record(s), Orphanet, top 20 (validated / broadest geography first):
| Type | Class | Value | Geography | Validation |
|---|---|---|---|---|
| Prevalence at birth | 1-9 / 1 000 000 | 0.82 | Worldwide | Validated |
| Point prevalence | 1-9 / 1 000 000 | 0.5 | Europe | Validated |
| Prevalence at birth | 1-9 / 100 000 | 1 | Europe | Validated |
| Point prevalence | 1-9 / 100 000 | 8.7 | Sweden | Validated |
| Point prevalence | 1-5 / 10 000 | 31 | Norway | Validated |
| Point prevalence | 1-9 / 100 000 | 7.4 | Denmark | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.69 | Germany | Validated |
| Prevalence at birth | 1-9 / 100 000 | 1.33 | Portugal | Validated |
| Prevalence at birth | 1-9 / 100 000 | 1.19 | Netherlands | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.67 | Sweden | Validated |
| Prevalence at birth | 1-9 / 100 000 | 1.85 | Norway | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.54 | Denmark | Validated |
| Prevalence at birth | 1-9 / 100 000 | 3.8 | Ireland | Validated |
| Prevalence at birth | 1-9 / 100 000 | 1.07 | United Kingdom | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.63 | Tunisia | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.11 | Taiwan, Province of China | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.58 | Canada | Validated |
| Prevalence at birth | 1-9 / 100 000 | 1.14 | Australia | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.72 | Czech Republic | Validated |
| Prevalence at birth | 1-9 / 1 000 000 | 0.22 | Poland | Validated |
Signs & symptoms
Clinical features (HPO)
57 HPO clinical features (Orphanet curated; top 50 by frequency):
| HPO ID | Term | Frequency |
|---|---|---|
| HP:0000023 | Inguinal hernia | Very frequent (80-99%) |
| HP:0000246 | Sinusitis | Very frequent (80-99%) |
| HP:0000280 | Coarse facial features | Very frequent (80-99%) |
| HP:0000389 | Chronic otitis media | Very frequent (80-99%) |
| HP:0000944 | Abnormal metaphysis morphology | Very frequent (80-99%) |
| HP:0001171 | Split hand | Very frequent (80-99%) |
| HP:0001387 | Joint stiffness | Very frequent (80-99%) |
| HP:0001608 | Abnormality of the voice | Very frequent (80-99%) |
| HP:0001744 | Splenomegaly | Very frequent (80-99%) |
| HP:0002230 | Generalized hirsutism | Very frequent (80-99%) |
| HP:0002650 | Scoliosis | Very frequent (80-99%) |
| HP:0003312 | Abnormal form of the vertebral bodies | Very frequent (80-99%) |
| HP:0004322 | Short stature | Very frequent (80-99%) |
| HP:0005930 | Abnormality of epiphysis morphology | Very frequent (80-99%) |
| HP:0007957 | Corneal opacity | Very frequent (80-99%) |
| HP:0008155 | Mucopolysacchariduria | Very frequent (80-99%) |
| HP:0100790 | Hernia | Very frequent (80-99%) |
| HP:0000179 | Thick lower lip vermilion | Frequent (30-79%) |
| HP:0000212 | Gingival overgrowth | Frequent (30-79%) |
| HP:0000232 | Everted lower lip vermilion | Frequent (30-79%) |
| HP:0000256 | Macrocephaly | Frequent (30-79%) |
| HP:0000268 | Dolichocephaly | Frequent (30-79%) |
| HP:0000271 | Abnormality of the face | Frequent (30-79%) |
| HP:0000293 | Full cheeks | Frequent (30-79%) |
| HP:0000294 | Low anterior hairline | Frequent (30-79%) |
| HP:0000365 | Hearing impairment | Frequent (30-79%) |
| HP:0000407 | Sensorineural hearing impairment | Frequent (30-79%) |
| HP:0000488 | Retinopathy | Frequent (30-79%) |
| HP:0000501 | Glaucoma | Frequent (30-79%) |
| HP:0000687 | Widely spaced teeth | Frequent (30-79%) |
| HP:0000691 | Microdontia | Frequent (30-79%) |
| HP:0001249 | Intellectual disability | Frequent (30-79%) |
| HP:0002024 | Malabsorption | Frequent (30-79%) |
| HP:0002104 | Apnea | Frequent (30-79%) |
| HP:0002205 | Recurrent respiratory infections | Frequent (30-79%) |
| HP:0002376 | Developmental regression | Frequent (30-79%) |
| HP:0002829 | Arthralgia | Frequent (30-79%) |
| HP:0003272 | Abnormality of the hip bone | Frequent (30-79%) |
| HP:0003401 | Paresthesia | Frequent (30-79%) |
| HP:0005105 | Abnormal nasal morphology | Frequent (30-79%) |
| HP:0005280 | Depressed nasal bridge | Frequent (30-79%) |
| HP:0009928 | Thick nasal alae | Frequent (30-79%) |
| HP:0012735 | Cough | Frequent (30-79%) |
| HP:0100625 | Enlarged thorax | Frequent (30-79%) |
| HP:0100765 | Abnormality of the tonsils | Frequent (30-79%) |
| HP:0000238 | Hydrocephalus | Occasional (5-29%) |
| HP:0000505 | Visual impairment | Occasional (5-29%) |
| HP:0000648 | Optic atrophy | Occasional (5-29%) |
| HP:0001373 | Joint dislocation | Occasional (5-29%) |
| HP:0001635 | Congestive heart failure | Occasional (5-29%) |
Identifiers
Disease identifiers
| Field | Value |
|---|---|
| Canonical name | mucopolysaccharidosis type 1 |
| Mondo ID | MONDO:0001586 |
| Orphanet | 579 |
| DOID | DOID:12802 |
| ICD-11 | 1539226250 |
| NCIT | C85053 |
| SNOMED CT | 75610003 |
| UMLS | C0023786 |
| MedGen | 44171 |
| GARD | 0010335 |
| MedDRA | 10056886 |
| NORD | 1462 |
| Is cancer (heuristic) | no |
Also known as: Alpha-L-iduronidase deficiency · attenuated MPS I (subtype, includes Hurler-Scheie and Scheie syndrome) · Hurler syndrome · Hurler syndrome (subtype) · Hurler-Scheie syndrome (subtype) · IDUA deficiency · lipochondrodystrophy · MPS 1 · MPS I · MPS1 · MPSI · mucopolysaccharidosis type 1 · Mucopolysaccharidosis Type I · mucopolysaccharidosis type I · Scheie syndrome (subtype) formerly known as Mucopoly-saccharidosis type V) · severe MPS I (subtype, also known as Hurler syndrome)
Data availability: 1,594 ClinVar variants · 186 ClinGen variant curations · 3 GenCC gene-disease records · 19 cell lines.
Disease family
An umbrella term covering 3 Mondo subtypes.
Classification path: disease › human disease › disease by body system or component › disorder of orbital region › eye disorder › mucopolysaccharidosis type 1
Related subtypes (119): ptosis, eye accommodation disease, corneal disorder, asthenopia, lens disorder, keratomalacia, scleral disorder, ocular siderosis, coloboma, luxation of globe, lacrimal apparatus disorder, Foster-Kennedy syndrome, anterior dislocation of lens, uveal disorder, eyelid disorder, ocular hypotension, scotoma, exophthalmos, ophthalmia nodosa, eye degenerative disorder, refractive error, glaucoma, retinal disorder, eye allergy, ocular vascular disorder, optic neuritis, conjunctival disorder, ocular hypertension, Tietz syndrome, Alagille syndrome, glaucoma-sleep apnea syndrome, Marshall syndrome, microcornea-glaucoma-absent frontal sinuses syndrome, nail-patella syndrome, oculodentodigital dysplasia, piebaldism, Sturge-Weber syndrome, cerebrotendinous xanthomatosis, ocular cystinosis, alpha-mannosidosis, megalocornea-intellectual disability syndrome, mucolipidosis type IV, mucopolysaccharidosis type 6, Netherton syndrome, galactosialidosis, Niemann-Pick disease type A, ocular motor apraxia, Cogan type, Peters plus syndrome, isolated Pierre-Robin syndrome, ectodermal dysplasia-blindness syndrome, Sandhoff disease, SHORT syndrome, Sjogren-Larsson syndrome, Smith-Lemli-Opitz syndrome, Tay-Sachs disease, tyrosinemia type II, Ito hypomelanosis, X-linked cone dysfunction syndrome with myopia, red color blindness, oculocerebrorenal syndrome, Lowry-MacLean syndrome, pigment dispersion syndrome, hereditary hyperferritinemia with congenital cataracts, dyssegmental dysplasia-glaucoma syndrome, mevalonic aciduria, familial cavitary optic disk anomaly, blindness - scoliosis - arachnodactyly syndrome, fatty acyl-CoA reductase 1 deficiency, microcephaly-intellectual disability-sensorineural hearing loss-epilepsy-abnormal muscle tone syndrome, neurotrophic keratopathy, Cogan syndrome, atopic keratoconjunctivitis, rhizomelic chondrodysplasia punctata, Ehlers-Danlos syndrome, kyphoscoliotic type 1, IRVAN syndrome, Rothmund-Thomson syndrome type 2, microcornea-corectopia-macular hypoplasia syndrome, isolated anophthalmia-microphthalmia syndrome, Spasmus nutans, toxic maculopathy due to antimalarial drugs, syndromic recessive X-linked ichthyosis, acute zonal occult outer retinopathy, acute annular outer retinopathy, phakomatosis pigmentovascularis, lamellar ichthyosis, idiopathic linear interstitial keratitis, chondroectodermal dysplasia with night blindness, galactosemia, GM1 gangliosidosis, Gaucher disease, visual snow syndrome, extensive peripapillary myelinated nerve fibers, IgG4-related ophthalmic disorder, global developmental delay-visual anomalies-progressive cerebellar atrophy-truncal hypotonia syndrome, vernal keratoconjunctivitis, Gardner syndrome, anterior segment dysgenesis, isolated ankyloblepharon filiforme adnatum, hereditary optic neuropathy, essential strabismus, Axenfeld anomaly, eye neoplasm, isolated blepharochalasis, punctate inner choroidopathy, eye infectious disorder, vitreous body disorder, 9q33.3q34.11 microdeletion syndrome, autoimmune/inflammatory optic neuropathy, LTBP2-related ocular dysgenesis, ocular growth disorder, ocular dysgenesis caused by defects in PAX6 regulation, choroidal neovascularization, anterior segment developmental abnormality with extraocular manifestations, congenital optic disk excavation, neuroocular syndrome, isolated angioid streaks, multiple evanescent white dot syndrome, stellate multiform amelanotic choroidopathy, macular telangiectasia
Subtypes (3): Hurler syndrome, Hurler-Scheie syndrome, Scheie syndrome
Genetics & variants
GWAS landscape
No GWAS associations recorded — common-variant (GWAS) studies don’t cover this disease (typical for Mendelian / rare diseases). See the curated gene cohort and Mendelian overlap below.
Variant details and genetic-evidence tiers
ClinVar germline variants
600 retrieved; paginated sample, class counts are floors:
367 likely benign, 101 uncertain significance, 53 pathogenic, 33 likely pathogenic, 22 conflicting classifications of pathogenicity, 18 pathogenic/likely pathogenic, 3 benign, 2 benign/likely benign, 1 benign/likely benign; other
| ClinVar | Variant (HGVS) | Gene | Classification | Review |
|---|---|---|---|---|
| 1032924 | NM_000203.5(IDUA):c.1681C>T (p.Gln561Ter) | IDUA | Pathogenic | criteria provided, single submitter |
| 1038439 | NM_000203.5(IDUA):c.1862G>C (p.Arg621Pro) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1066233 | NM_000203.5(IDUA):c.1525-11_1536del | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1066552 | NM_000203.5(IDUA):c.299_299+1delinsAT | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1067173 | NM_000203.5(IDUA):c.1858G>T (p.Val620Phe) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1068741 | NM_000203.5(IDUA):c.1799C>A (p.Ser600Ter) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1068958 | NM_000203.5(IDUA):c.853del (p.Gln285fs) | IDUA | Pathogenic | criteria provided, single submitter |
| 1069822 | NM_000203.5(IDUA):c.585dup (p.Gln196fs) | IDUA | Pathogenic | criteria provided, single submitter |
| 1070696 | NM_000203.5(IDUA):c.910del (p.Val304fs) | IDUA | Pathogenic | criteria provided, single submitter |
| 1070716 | NC_000004.11:g.(?996510)(998355_?)del | IDUA | Pathogenic | criteria provided, single submitter |
| 1070926 | NM_000203.5(IDUA):c.209del (p.Gln70fs) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1072608 | NM_000203.5(IDUA):c.905del (p.Pro302fs) | IDUA | Pathogenic | criteria provided, single submitter |
| 1072941 | NM_000203.5(IDUA):c.87del (p.His30fs) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1073056 | NM_000203.5(IDUA):c.606C>G (p.Tyr202Ter) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 1075107 | NM_000203.5(IDUA):c.1108C>T (p.Gln370Ter) | IDUA | Pathogenic | criteria provided, single submitter |
| 1076379 | NM_000203.5(IDUA):c.882dup (p.Ile295fs) | IDUA | Pathogenic | reviewed by expert panel |
| 1184991 | NM_000203.5(IDUA):c.911del (p.Val304fs) | IDUA | Pathogenic | reviewed by expert panel |
| 11908 | NM_000203.5(IDUA):c.1205G>A (p.Trp402Ter) | IDUA | Pathogenic | reviewed by expert panel |
| 11910 | NM_000203.5(IDUA):c.1598C>G (p.Pro533Arg) | IDUA | Pathogenic | reviewed by expert panel |
| 11914 | NM_000203.5(IDUA):c.192C>A (p.Tyr64Ter) | IDUA | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 11917 | NM_000203.5(IDUA):c.1861C>T (p.Arg621Ter) | IDUA | Pathogenic | reviewed by expert panel |
| 11919 | NM_000203.5(IDUA):c.1469T>C (p.Leu490Pro) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 11921 | NM_000203.5(IDUA):c.613_617dup (p.Glu207fs) | IDUA | Pathogenic | reviewed by expert panel |
| 11922 | NM_000203.5(IDUA):c.266G>A (p.Arg89Gln) | IDUA | Pathogenic | reviewed by expert panel |
| 11924 | NM_000203.5(IDUA):c.1855C>G (p.Arg619Gly) | IDUA | Pathogenic/Likely pathogenic | criteria provided, multiple submitters, no conflicts |
| 11925 | NM_000203.5(IDUA):c.1091C>T (p.Thr364Met) | IDUA | Pathogenic | reviewed by expert panel |
| 11927 | NM_000203.5(IDUA):c.1037T>G (p.Leu346Arg) | IDUA | Pathogenic | criteria provided, multiple submitters, no conflicts |
| 1204494 | NM_000203.5(IDUA):c.1190-1G>A | IDUA | Pathogenic | reviewed by expert panel |
| 1321357 | NM_000203.5(IDUA):c.540G>A (p.Trp180Ter) | IDUA | Pathogenic | reviewed by expert panel |
| 1323093 | NM_000203.5(IDUA):c.299+1G>C | IDUA | Pathogenic | criteria provided, multiple submitters, no conflicts |
Genes & proteins
Mendelian disease overlap and somatic drivers
GenCC: 11 · Orphanet: 3 · OMIM-shared: 0 · Dual-evidence (GWAS+Mendelian): 0
GenCC gene–disease validity (cohort genes)
the Disease column is the GenCC-asserted condition — a cohort gene’s strongest validity may be for a related predisposition syndrome.
| Gene | Classification | Inheritance | Disease | Records |
|---|---|---|---|---|
| IDUA | Definitive | Autosomal recessive | mucopolysaccharidosis type 1 | 11 |
Orphanet rare-disease linkage (cohort genes)
| Gene | Orphanet ID | Rare disease |
|---|---|---|
| IDUA | Orphanet:93473 | Hurler syndrome |
| IDUA | Orphanet:93474 | Scheie syndrome |
| IDUA | Orphanet:93476 | Hurler-Scheie syndrome |
Cohort genes → proteins
2 cohort genes, 2 distinct canonical proteins.
Evidence partition
| Subset | Genes |
|---|---|
| multi_evidence | 2 |
Cohort genes (full)
| Symbol | HGNC | Ensembl | UniProt | Name | Evidence |
|---|---|---|---|---|---|
| IDUA | HGNC:5391 | ENSG00000127415 | P35475 | Alpha-L-iduronidase | gencc,clinvar |
| SLC26A1 | HGNC:10993 | ENSG00000145217 | Q9H2B4 | Sulfate anion transporter 1 | clinvar |
Cohort function summary
Lead sentence per gene, UniProt-curated.
| Symbol | Protein name | Function (lead sentence) |
|---|---|---|
| SLC26A1 | Sulfate anion transporter 1 | Sodium-independent sulfate anion transporter. |
Protein-family classification
Druggable: 2 · Difficult: 0 · Unknown: 0 · Druggable fraction: 1.0
Family distribution
Cohort families vs a genome-wide background (hypergeometric, BH-FDR; fold = observed/expected). Counts kept; sorted by enrichment, so the catch-all Other/Unknown bucket no longer leads.
| Family | Genes | Fold | FDR |
|---|---|---|---|
| Transporter | 1 | 38.9× | 0.051 |
| Antibody/Immunoglobulin | 1 | 14.6× | 0.067 |
Per-gene assignment
| Symbol | Family | Druggable? | EC | InterPro (top 3) |
|---|---|---|---|---|
| IDUA | Antibody/Immunoglobulin | yes | 3.2.1.76 | Glyco_hydro_39, Ig-like_fold, GH_hydrolase_sf |
| SLC26A1 | Transporter | yes | SLC26A/SulP_fam, STAS_dom, SLC26A/SulP_dom |
Expression context
Cohort genes with no expression data: 0.
1 cohort gene are a single-cell marker in ≥1 SCXA experiment.
Breadth distribution (Bgee present_calls)
| Bucket | Genes |
|---|---|
| narrow (1-5 tissues) | 0 |
| moderate (6-20) | 0 |
| broad (>20) | 2 |
| unknown | 0 |
Top tissues across cohort
| Tissue | Cohort genes |
|---|---|
| cerebellar cortex | 1 |
| cerebellar hemisphere | 1 |
| right hemisphere of cerebellum | 1 |
| left adrenal gland cortex | 1 |
| right adrenal gland cortex | 1 |
| right lobe of liver | 1 |
Per-gene tissue summary (top 30)
| Symbol | Bgee breadth | FANTOM5 breadth | SCXA | Top tissues |
|---|---|---|---|---|
| IDUA | 209 | ubiquitous | marker | right hemisphere of cerebellum, cerebellar hemisphere, cerebellar cortex |
| SLC26A1 | 156 | tissue_specific | yes | right adrenal gland cortex, left adrenal gland cortex, right lobe of liver |
Protein interactions among cohort
Intra-cohort edges: 0.
Hub genes (top 10 by interactor count)
| Symbol | Interactor count |
|---|---|
| IDUA | 1,927 |
| SLC26A1 | 1,454 |
Structural data
PDB: 1 · AlphaFold-only: 1 · No structure: 0
Cohort genes with PDB structures (top 30)
| Symbol | UniProt | PDB entries |
|---|---|---|
| IDUA | P35475 | 11 |
AlphaFold-only cohort genes (top 30 by pLDDT)
| Symbol | UniProt | pLDDT |
|---|---|---|
| SLC26A1 | Q9H2B4 | 83.13 |
Function
Pathway analysis
Distinct Reactome pathways touched by cohort: 15. Enrichment computed across 2 evidence-associated genes (2 with Reactome annotation).
Pathways by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 2 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| Pathway | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| MPS I - Hurler syndrome (HS-GAG degradation) | 1 | 5710.0× | 0.001 | IDUA |
| MPS I - Hurler syndrome (CS/DS degradation) | 1 | 5710.0× | 0.001 | IDUA |
| Transport and metabolism of PAPS | 1 | 815.7× | 0.006 | SLC26A1 |
| Inorganic anion exchange by SLC26 transporters | 1 | 634.4× | 0.006 | SLC26A1 |
| CS/DS degradation | 1 | 271.9× | 0.009 | IDUA |
| Cytosolic sulfonation of small molecules | 1 | 259.6× | 0.009 | SLC26A1 |
| HS-GAG degradation | 1 | 248.3× | 0.009 | IDUA |
| Phase II - Conjugation of compounds | 1 | 139.3× | 0.013 | SLC26A1 |
| Glycosaminoglycan metabolism | 1 | 109.8× | 0.015 | SLC26A1 |
| Biological oxidations | 1 | 64.9× | 0.021 | SLC26A1 |
| R-HSA-425393 | 1 | 64.9× | 0.021 | SLC26A1 |
| Metabolism of carbohydrates and carbohydrate derivatives | 1 | 60.1× | 0.021 | SLC26A1 |
| SLC-mediated transmembrane transport | 1 | 29.6× | 0.039 | SLC26A1 |
| Transport of small molecules | 1 | 12.6× | 0.083 | SLC26A1 |
| Metabolism | 1 | 5.8× | 0.165 | SLC26A1 |
GO biological processes by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 2 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| GO term | Cohort genes | Fold | FDR | Sample cohort genes |
|---|---|---|---|---|
| disaccharide metabolic process | 1 | 8426.0× | 5e-04 | IDUA |
| heparin proteoglycan catabolic process | 1 | 8426.0× | 5e-04 | IDUA |
| dermatan sulfate proteoglycan catabolic process | 1 | 2106.5× | 0.001 | IDUA |
| glycosaminoglycan catabolic process | 1 | 1203.7× | 0.001 | IDUA |
| oxalate transport | 1 | 1203.7× | 0.001 | SLC26A1 |
| heparan sulfate proteoglycan catabolic process | 1 | 936.2× | 0.002 | IDUA |
| sulfate transmembrane transport | 1 | 601.9× | 0.002 | SLC26A1 |
| chloride transport | 1 | 227.7× | 0.005 | SLC26A1 |
| chloride transmembrane transport | 1 | 118.7× | 0.008 | SLC26A1 |
Therapeutics
Drug target analysis
Approved (phase 4): 0 · Phase ≥3: 0 · Phased (≥1): 0 · Undrugged: 2
Druggability breadth: 1 of 2 evidence-associated genes (50%) have a ChEMBL target (buckets above are over the deeply-mined display cohort).
Top cohort targets by molecule count
| Symbol | Molecules | Max phase |
|---|---|---|
| IDUA | 0 | 0 |
| SLC26A1 | 0 | 0 |
Bioactivity and enzyme data
Enzyme cohort genes (≥1 EC): 1.
Cohort genes with ChEMBL bioactivity (full, sorted by assay count)
| Symbol | Assays | Type breakdown |
|---|---|---|
| IDUA | 15 | Binding:15 |
Cohort enzymes (BRENDA EC)
| Symbol | EC numbers | Names |
|---|---|---|
| IDUA | 3.2.1.76 | L-iduronidase |
Pharmacogenomics
Cohort genes with a PharmGKB record: 2; with CPIC/DPWG dosing guidelines: 0.
No cohort gene has a CPIC/DPWG genotype-guided dosing guideline (PharmGKB).
Chemical tractability of cohort targets
0 approved/phased compounds have measured bioactivity against a cohort gene (and aren’t yet in disease-level trials). This is a research / tractability signal, NOT a therapeutic recommendation — a bioactivity row often reflects off-target or screening binding (e.g. promiscuous kinase inhibitors against a cohort kinase), implying no disease mechanism.
Druggability pyramid
Cohort genes binned by druggability tier (high → low):
| Tier | Definition | Genes | Symbols |
|---|---|---|---|
| A | Approved (phase 4 drug) | 0 | |
| B | Phased (≥1) drug, not yet approved | 0 | |
| C | Druggable family + PDB, no drug | 1 | IDUA |
| D | Druggable family + AlphaFold only, no drug | 1 | SLC26A1 |
| E | Difficult family or no structure, no drug | 0 |
Undrugged target profiles
2 cohort genes are undrugged. Ranked by ‘starting-point quality’ (assay depth + drugged-partner adjacency).
| Symbol | ChEMBL assays | Drugged partners (top 3) |
|---|---|---|
| IDUA | 15 | — |
| SLC26A1 | 0 | — |
Clinical trials & evidence
Clinical trials
Clinical trials: 33.
Phase distribution (across all retrieved trials)
| Phase | Trials |
|---|---|
| Not specified | 16 |
| PHASE1/PHASE2 | 6 |
| PHASE1 | 5 |
| PHASE2 | 4 |
| PHASE3 | 2 |
Top trials by phase / activity
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT00258011 | PHASE3 | COMPLETED | Study of Aldurazyme® Replacement Therapy in Patients With Mucopolysaccharidosis I (MPS I) Disease |
| NCT06406153 | PHASE3 | COMPLETED | Efficacy and Safety of YW17 (Laronidase-CinnaGen) Compared to Aldurazyme® in MPS I Patients |
| NCT02171104 | PHASE2 | ACTIVE_NOT_RECRUITING | MT2013-31: Allo HCT for Metabolic Disorders and Severe Osteopetrosis |
| NCT00146757 | PHASE2 | COMPLETED | A Study Evaluating the Safety and Pharmacokinetics of Aldurazyme® (Laronidase) in MPS I Patients Less Than 5 Years Old |
| NCT00176891 | PHASE2 | COMPLETED | Stem Cell Transplant w/Laronidase for Hurler |
| NCT01043640 | PHASE2 | COMPLETED | Allogeneic Bone Marrow Transplant for Inherited Metabolic Disorders |
| NCT01372228 | PHASE1/PHASE2 | TERMINATED | Phase I/II Pilot Study of Mixed Chimerism to Treat Inherited Metabolic Disorders |
| NCT02437253 | PHASE1/PHASE2 | COMPLETED | Effects of Adalimumab in Mucopolysaccharidosis Types I, II and VI |
| NCT02702115 | PHASE1/PHASE2 | TERMINATED | Ascending Dose Study of Genome Editing by the Zinc Finger Nuclease (ZFN) Therapeutic SB-318 in Subjects With MPS I |
| NCT03513328 | PHASE1/PHASE2 | COMPLETED | Conditioning Regimen for Allogeneic Hematopoietic Stem-Cell Transplantation |
| NCT03580083 | PHASE1/PHASE2 | SUSPENDED | RGX-111 Gene Therapy in Patients With MPS I |
| NCT05665036 | PHASE1/PHASE2 | WITHDRAWN | Safety and Efficacy of Encapsulated Allogeneic MPS-1 Therapy |
| NCT04532047 | PHASE1 | RECRUITING | PEARL (PrEnAtal Enzyme Replacement Therapy for Lysosomal Storage Disorders) |
| NCT06519552 | PHASE1 | RECRUITING | A Clinical Study Evaluating the Safety, Tolerability, and Initial Efficacy of JWK008 in Patients With Mucopolysaccharidosis Type I |
| NCT00638547 | PHASE1 | COMPLETED | Intrathecal Enzyme Replacement for Hurler Syndrome |
| NCT01173016 | PHASE1 | COMPLETED | Administration of IV Laronidase Post Bone Marrow Transplant in Hurler |
| NCT01917708 | PHASE1 | COMPLETED | Bone Marrow Transplant With Abatacept for Non-Malignant Diseases |
| NCT03333200 | Not specified | RECRUITING | Longitudinal Study of Neurodegenerative Disorders |
| NCT03655223 | Not specified | ENROLLING_BY_INVITATION | Early Check: Expanded Screening in Newborns |
| NCT05634512 | Not specified | ACTIVE_NOT_RECRUITING | Evaluation of Intravenous Laronidase Pharmacokinetics Before and After Hematopoietic Cell Transplantation in Patients With Mucopolysaccharidosis Type IH. |
| NCT07361536 | Not specified | RECRUITING | Cardiac Structure and Function in MPS |
| NCT00286689 | Not specified | WITHDRAWN | Effects of Growth Hormone in Chronically Ill Children |
| NCT01572636 | Not specified | TERMINATED | Laronidase (Aldurazyme TM) Enzyme Replacement Therapy With Hematopoietic Stem Cell Transplant for Hurler Syndrome |
| NCT01870375 | Not specified | COMPLETED | Longitudinal Studies of Brain Structure and Function in MPS Disorders |
| NCT01873911 | Not specified | COMPLETED | Neurobehavioral Phenotypes in MPS III |
| NCT01938014 | Not specified | COMPLETED | Lysosomal Storage Disease: Health, Development, and Functional Outcome Surveillance in Preschool Children |
| NCT02067650 | Not specified | COMPLETED | Ultrasound Findings of Finger, Wrist and Knee Joints in Mucopolysaccharidosis |
| NCT02298712 | Not specified | WITHDRAWN | Biomarker for Hurler Disease (BioHurler) |
| NCT03161171 | Not specified | COMPLETED | Parental Coping With Challenging Behavior in Mucopolysaccharidosis Type I-III |
| NCT03576729 | Not specified | COMPLETED | MRS to Determine Neuroinflammation and Oxidative Stress in MPS I |
| NCT03639844 | Not specified | NO_LONGER_AVAILABLE | BPX-501 T Cells Infused Post Stem Cell Transplant in Pediatrics With Non-Malignant Disorders Ineligible for BPU004 Study |
| NCT04958070 | Not specified | UNKNOWN | The Intensively Follow-up Examinations for Asymptomatic MPS I Infants in Taiwan |
| NCT05073783 | Not specified | COMPLETED | A Study to Assess the Safety of Myozyme® and of Aldurazyme® in Male and Female Participants of Any Age Group With Pompe Disease or With Mucopolysaccharidosis Type I (MPS I) in a Home-care Setting |
Drugs tested across these trials (top 30)
| Molecule | Max phase | Trials referencing |
|---|---|---|
| LARONIDASE | 4 | 4 |
| CYCLOPHOSPHAMIDE ANHYDROUS | 4 | 1 |
| TERFENADINE | 4 | 1 |
| RIMIDUCID | 2 | 1 |
| RIVOGENLECLEUCEL | 2 | 1 |
Related Atlas pages
- Cohort genes: IDUA, SLC26A1
- Drugs: Laronidase, Cyclophosphamide, Terfenadine