ORPHA:2801
Juvenile Paget disease
Also known as: Familial osteoectasia · Hereditary hyperphosphatasia · Hyperostosis corticalis deformans juvenilis · JPG
Publications
6,265
Trials
0
Interventional, condition-specific
Researchers
1,111
Distinct authors in sample
Gene link
TNFRSF11B
Strong
Readiness
3/6
Stages with a signal
Clinical definition (Orphanet)
Juvenile Paget disease is a very rare form of Paget disease of the bone characterized by a general increase in bone turnover with increased bone resorption and deposition, resulting in cortical and trabecular thickening, and clinically presenting as skeletal deformities, growth impairment, fractures, vertebral collapse, skull enlargement and sensorineural hearing loss.
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:0009394
- MeSH:C537701
- OMIM:239000
- UMLS:C0268414
- NCIT:C131861
Additional Mondo synonyms (7)
Hereditary Hyperphosphatasia · familial hyperphosphatasia · familial osteoectasia · hereditary hyperphosphatasia · hyperostosis corticalis deformans juvenilis · juvenile Paget disease · juvenile Paget's disease
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 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 — TNFRSF11B
- LiteraturePresent
6,265 matched papers (3,254 in last 10 years) Source
- Phenotype characterisedPresent
52 HPO annotations (e.g. Motor delay; Retinal degeneration; Macular scar) Source
- Animal modelNot found
No Alliance genotype “model of” associations via Monarch for these Mondo IDs
- Orphan designationNot found
No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source
- 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 (TNFRSF11B).
GenCC classification: Strong.
Phenotypes (Monarch / HPO)
52
Associated phenotypes · MONDO:0009394
- Motor delay
- Retinal degeneration
- Macular scar
- Thickened calvaria
- Short stature
Showing 5 of 52 — open Monarch for the full list.
Animal models (Monarch / Alliance)
None returned for this Mondo ID. Empty here is not proof that no model organism work exists under another name or gene.
Monarch fetch 2026-07-29
Therapies
Designations, candidates, and chemicals
FDA OOPD and EMA orphan designations, Open Targets clinical candidates, and CTD chemical associations via MyDisease.info. These never change the interventional-trial headline.
Orphan designation (FDA · EMA)
No designation matched this disease via UMLS or preferred name on the FDA OOPD mirror or EMA orphan register. Absence here is not proof that none exists under another wording.
Open Targets candidates
No drugs or clinical candidates returned for this Mondo ID on Open Targets.
CTD chemicals (MyDisease.info)
No CTD chemical associations returned for this Mondo ID.
Literature
Is anyone studying this?
6,265
6,265 papers — among the better-studied rare conditions, though still a fraction of common-disease literature (breast cancer: over 700,000). Median papers in the last 10 years for a rare disease in this dataset (publications denominator n=3967) is 59.
6,265 papers since the earliest indexed year in this search — median last-10-year count for a rare disease in this dataset is 59 (publications denominator n=3967).
3,254 in the last 10 years · low confidence
Phrase hits: 219 · MeSH hits: 0
Who's working on it?
1,111
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.
- 01Whyte MP12 papers · 2023
Center for Metabolic Bone Disease and Molecular Research, Shriners Hospital for Children, St. Louis, MO, 63110, USA.
Papers in Europe PMC - 02Mumm S9 papers · 2023
Division of Bone and Mineral Diseases, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, Missouri; Center for Metabolic Bone Disease and Molecular Research, Shriners Hospital for Children, St. Louis, Missouri.
Papers in Europe PMC - 03Cundy T8 papers · 2025
Department of Medicine, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand. t.cundy@auckland.ac.nz
Papers in Europe PMC - 04McAlister WH7 papers · 2020
Department of Pediatric Radiology, Mallinckrodt Institute of Radiology at St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, MO 63110, USA,. Electronic address: mcalisterw@mir.wustl.edu.
Papers in Europe PMC - 05Polyzos SA7 papers · 2025
Department of Endocrinology, Ippokration General Hospital, 13 Simou Lianidi, Thessaloniki, Greece. stergios@endo.gr
Papers in Europe PMC - 06Chong W6 papers
Australian School of Advanced Medicine, Macquarie University, Sydney, Australia Neurosurgery Department, Jikei University School of Medicine, Tokyo, Japan Centre for Advanced Biomedical Science, Tokyo, Japan - Email:
Papers in Europe PMC - 07Van Hul W6 papers · 2023
Department of Medical Genetics, University of Antwerp , Antwerp, Belgium .
Papers in Europe PMC - 08Anastasilakis AD4 papers · 2019
Department of Endocrinology, 424 General Military Hospital, Thessaloniki, Greece.
Papers in Europe PMC - 09Grasemann C4 papers · 2021
Pediatric Endocrinology and Diabetology, Klinik für Kinderheilkunde II and.
Papers in Europe PMC - 10Jiarakongmun P4 papers
Australian School of Advanced Medicine, Macquarie University, Sydney, Australia Neurosurgery Department, Jikei University School of Medicine, Tokyo, Japan Centre for Advanced Biomedical Science, Tokyo, Japan - Email:
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 11 September 2026 · last trial check 11 September 2026
No matched interventional trials. This is true for 77.2% of diseases in the trials denominator (5501 of 7126). Here are the researchers publishing on it.
low confidence · 38.6th 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.
Other registries (secondary)
Broader net from EU CTIS, ISRCTN, and ICTRP when available — deduped against ClinicalTrials.gov IDs already counted above. Dual-model LLM relevance gates what we keep. These rows are not added to the interventional headline.
raw 2 · after dedupe 1 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 1 · dropped 0 · fetched 2026-07-29
Source notes: ictrp: Error: ICTRP public search unavailable (WHO portal is SPA-only; SOAP needs partnership). Tried: https://apps.who.int/tri
No secondary-registry studies passed dual-model relevance for this condition name (after dedupe).
Uncertain / not reviewed (1)
Where to find support
Condition-specific patient organisations, when Orphanet lists them, are on the disease’s Orphanet page. We also link umbrella groups that support undiagnosed and ultra-rare families.
Orphanet entry for Juvenile Paget disease — check Associations / patient organisations on that page.
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.
("Juvenile Paget disease" OR "Familial osteoectasia" OR "Hereditary hyperphosphatasia" OR "Hyperostosis corticalis deformans juvenilis" OR "familial hyperphosphatasia" OR "juvenile Paget's disease") OR ("TNFRSF11B" OR "TNFRSF11B syndrome" OR "TNFRSF11B-related")ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Juvenile Paget disease" OR "Familial osteoectasia" OR "Hereditary hyperphosphatasia" OR "Hyperostosis corticalis deformans juvenilis" OR "familial hyperphosphatasia" OR "juvenile Paget's disease"
Study-type breakdown: 0 interventional · 0 observational · 0 expanded access. Only interventional studies enter the trial headline.
Query health: ok — strategies attempted: phrase; with hits: phrase
Run this search on ClinicalTrials.gov
Synonyms dropped by stoplist: JPG
Confidence reasoning
- Preferred label is multi-word and distinctive
- 1 synonym(s) dropped by stoplist (may under-count)
- No label/synonym collisions with other diseases in this corpus
- Publication count (6265) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity
Ingested 2026-07-26T21:15:03.256Z