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ORPHA:220295

Xeroderma pigmentosum-Cockayne syndrome complex

high confidenceDisorder

Also known as: XP/CS complex

Publications

74

37.7th percentile

Trials

0

Interventional, condition-specific

Researchers

362

Distinct authors in sample

Gene link

—

Readiness

3/6

Stages with a signal

Clinical definition (Orphanet)

Xeroderma pigmentosum/Cockayne syndrome complex (XP/CS complex) is characterized by the cutaneous features of xeroderma pigmentosum (XP) together with the systemic and neurological features of Cockayne syndrome (CS).

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.

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

Research-stage checklist from open sources (GenCC, literature, Monarch when enriched, ClinicalTrials.gov). Not a prognosis or care recommendation.

  1. Gene identifiedNot found

    No GenCC disease–gene assertion in this build

  2. LiteraturePresent

    74 matched papers (23 in last 10 years) Source

  3. Phenotype characterisedPresent

    118 HPO annotations (e.g. Pes cavus; Microcephaly; Defective DNA repair after ultraviolet radiation damage) Source

  4. Animal modelPresent

    7 genotype models (Mus musculus) Source

  5. Orphan designationNot found

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

  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?

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

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

Phenotypes (Monarch / HPO)

118

Associated phenotypes · MONDO:0016354

  • Pes cavus
  • Microcephaly
  • Defective DNA repair after ultraviolet radiation damage
  • Cutaneous photosensitivity
  • Global developmental delay

Showing 5 of 118 — open Monarch for the full list.

Animal models (Monarch / Alliance)

7

Model associations linked to this Mondo ID

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?

74

74 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=3967) is 59.

74 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).

23 in the last 10 years · high confidence · 37.7th percentile (publications denominator)

Phrase hits: 74 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

362

Distinct author names in 74 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
    Kraemer KH16 papers · 2015

    Dermatology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD.

    Papers in Europe PMC
  2. 02
    Emmert S9 papers · 2017

    Clinic and Policlinic for Dermatology and Venereology, University Medical Centre Rostock, Strempelstrasse 13, 18057, Rostock, Germany. steffen.emmert@med.uni-rostock.de.

    Papers in Europe PMC
  3. 03
    Khan SG9 papers · 2013

    Basic Research Laboratory, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, United States.

    Papers in Europe PMC
  4. 04
    DiGiovanna JJ8 papers · 2015

    DNA Repair Section, Dermatology Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland 20892-4258, USA.

    Papers in Europe PMC
  5. 05
    Moriwaki S6 papers · 2019

    Department of Dermatology, Osaka Medical College, Takatsuki, Japan.

    Papers in Europe PMC
  6. 06
    Oh KS6 papers · 2011

    DNA Repair Section, Dermatology Branch, CCR, National Cancer Institute, Bethesda, MD 20892, USA.

    Papers in Europe PMC
  7. 07
    Hoeijmakers JH5 papers · 2011
    Papers in Europe PMC
  8. 08
    Jaspers NG5 papers · 2008
    Papers in Europe PMC
  9. 09
    Kleijer WJ5 papers · 2008

    Department of Clinical Genetics, Erasmus Medical Centre, Rotterdam, The Netherlands.

    Papers in Europe PMC
  10. 10
    Vermeulen W5 papers · 2020

    MGC-Department of Cell Biology and Genetics, Erasmus University, Rotterdam, The Netherlands.

    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.

high 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 0 · after dedupe 0 · already on CT.gov 0 · kept 0 · parent 0 · uncertain 0 · dropped 0 · fetched 2026-07-30

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).

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 Xeroderma pigmentosum-Cockayne syndrome complex — check Associations / patient organisations on that page.

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.

"Xeroderma pigmentosum-Cockayne syndrome complex" OR "XP/CS complex"

Run this search on Europe PMC

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

"Xeroderma pigmentosum-Cockayne syndrome complex" OR "XP/CS complex"

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

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 2026-07-27T09:52:21.323Z