RARE DISEASERESEARCH ATLAS

ORPHA:2485

Melorheostosis

low confidenceDisorder

Publications

3,897

Trials

1

Interventional, condition-specific

Researchers

1,325

Distinct authors in sample

Gene link

Readiness

3/6

Stages with a signal

Clinical definition (Orphanet)

Melorheostosis is a rare connective tissue disorder characterized by a sclerosing bone , usually limited to one side of the body (rarely bilateral), that manifests with pain, stiffness, joint contractures and deformities.

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.

Orphanet entry

Cross-references

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

Additional Mondo synonyms (1)

melorheostosis, isolated, somatic mosaic

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

An interventional trial matched this condition name on ClinicalTrials.gov — see trials below.

  1. Gene identifiedNot found

    No GenCC disease–gene assertion in this build

  2. LiteraturePresent

    3,897 matched papers (2,197 in last 10 years) Source

  3. Phenotype characterisedPresent

    20 HPO annotations (e.g. Abnormality of the skeletal system; Lymphedema; Increased bone mineral density) Source

  4. Animal modelNot found

    No Alliance genotype “model of” associations via Monarch for these Mondo IDs

  5. Orphan designationNot found

    No FDA or EMA orphan-drug designation matched this disease via UMLS or preferred name Source

  6. Interventional trialPresent

    1 matched on ClinicalTrials.gov

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?

Not yet — the cause hasn't been pinned down in GenCC.

No strong gene–disease assertion joined for this Orphanet entity.

Phenotypes (Monarch / HPO)

20

Associated phenotypes · MONDO:0007970

  • Abnormality of the skeletal system
  • Lymphedema
  • Increased bone mineral density
  • Joint stiffness
  • Failure to thrive

Showing 5 of 20 — 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?

3,897

3,897 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=3967) is 59.

3,897 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).

2,197 in the last 10 years · low confidence

Phrase hits: 3,897 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

1,325

Distinct author names in 200 sampled papers — named people below.

Who's working on it?

People publishing on this condition (sampled Europe PMC records). Affiliation is the most recent found in that sample.

  1. 01
    Chen X6 papers · 2025

    Department of Dermatology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.

    Papers in Europe PMC
  2. 02
    Liu Y5 papers · 2026

    Center for Sleep and Circadian Medicine, Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China yaping.liu@cuhk.edu.hk ykwing@cuhk.edu.hk.

    Papers in Europe PMC
  3. 03
    Zhang J5 papers · 2026

    Shanghai-MOST Key Laboratory of Health and Disease Genomics, NHC Key Lab of Reproduction Regulation, Shanghai Institute for Biomedical and Pharmaceutical Technologies, Pharmacy School, Fudan University, Shanghai, PR China.

    Papers in Europe PMC
  4. 04
    Bhattacharyya T4 papers · 2025

    Clinical and Investigative Orthopedics Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.

    Papers in Europe PMC
  5. 05
    Li Y4 papers · 2025

    Department of Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.

    Papers in Europe PMC
  6. 06
    Bekar L3 papers · 2026

    Department of Cardiology, Hitit University, Faculty of Medicine, Çorum, Turkey.

    Papers in Europe PMC
  7. 07
    Cerri G3 papers · 2026

    Unidad de Enfermedades Cardiometabólicas, Servicio de Clínica Médica, Hospital Gral. San Martín, La Plata, Argentina.

    Papers in Europe PMC
  8. 08
    Chahine LM3 papers · 2026

    Department of Neurology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania.

    Papers in Europe PMC
  9. 09
    Kalçık M3 papers · 2026

    Department of Cardiology, Hitit University, Faculty of Medicine, Çorum, Turkey.

    Papers in Europe PMC
  10. 10
    Minetto J3 papers · 2026

    Unidad de Enfermedades Cardiometabólicas, Servicio de Clínica Médica, Hospital Gral. San Martín, La Plata, Argentina.

    Papers in Europe PMC

Clinical research

Is a treatment being tested?

1

interventional trials for this specific condition

1 interventional trial matched this specific condition name; none in our sample are currently recruiting.

Data as of 11 September 2026

1 interventional trial — more than 77.2% of diseases in the trials denominator have none at all (5501 of 7126; this disease is at the 80.1th percentile).

low confidence · 80.1th percentile (trials denominator)

Recruiting interventional trials

From the matched ClinicalTrials.gov set

1 interventional trials matched after quoted-phrase search and title/condition post-filter.

No currently recruiting studies in the matched set. Open the same search on ClinicalTrials.gov.

Observational and natural-history studies

2 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

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 60 · after dedupe 60 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 60 · 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 (60)

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 Melorheostosis — check Associations / patient organisations on that page.

India — NPRD

Last verified 2026-07-26

Likely covered — the policy lists Osteopetrosis as a category (Group 1), and this condition is a form of it. Confirm eligibility with a Centre of Excellence.

Group 1 — one-time curative treatment

Up to ₹50 lakh per patient

Financial support for treatment at notified Centres of Excellence (figures evolved from the original ₹20 lakh Group-1 ceiling).

Policy figures change. Verify current MoHFW / CoE guidance before relying on any amount. Verify

Centres of Excellence (15)
  • All India Institute of Medical Sciences (AIIMS)New Delhi, Delhi
  • Maulana Azad Medical CollegeNew Delhi, Delhi
  • Sanjay Gandhi Post Graduate Institute of Medical SciencesLucknow, Uttar Pradesh
  • Post Graduate Institute of Medical Education and Research (PGIMER)Chandigarh, Chandigarh
  • Centre for DNA Fingerprinting & Diagnostics with Nizam’s Institute of Medical SciencesHyderabad, Telangana
  • King Edward Memorial HospitalMumbai, Maharashtra
  • Institute of Post-Graduate Medical Education and Research (IPGMER)Kolkata, West Bengal
  • Centre for Human Genetics with Indira Gandhi HospitalBengaluru, Karnataka
  • Institute of Child Health and Hospital for Children (ICH & HC)Chennai, Tamil Nadu
  • All India Institute of Medical Sciences (AIIMS)Jodhpur, Rajasthan
  • Sree Avittam Thirunal Hospital (SAT), Government Medical CollegeThiruvananthapuram, Kerala
  • All India Institute of Medical Sciences (AIIMS)Bhopal, Madhya Pradesh
  • Regional Institute of Medical Sciences (RIMS)Imphal, Manipur
  • All India Institute of Medical Sciences (AIIMS)Patna, Bihar
  • Assam Medical College & HospitalDibrugarh, Assam

Voluntary contributions / crowdfunding (separate from CoE funding): https://rarediseases.mohfw.gov.in/

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.

"Melorheostosis" OR "melorheostosis, isolated, somatic mosaic"

Run this search on Europe PMC

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

"Melorheostosis" OR "melorheostosis, isolated, somatic mosaic"

Interventional trials matched via: phrase (mesh = registered under a MeSH descriptor no name phrase would catch; recall-expansion = gene / selected parent terms used only for trials).

Study-type breakdown: 1 interventional · 2 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

Confidence reasoning

  • Preferred label is short or not clearly distinctive
  • No synonyms dropped by stoplist
  • No label/synonym collisions with other diseases in this corpus
  • Publication count (3897) is implausibly high for prevalence class "<1 / 1 000 000" — treat as possible over-matching, not a measure of research intensity

Ingested 2026-07-26T20:18:46.299Z