ORPHA:247198
Progressive cerebello-cerebral atrophy
Also known as: PCCA
Publications
49
43.1th percentile
Trials
0
Interventional, condition-specific
Researchers
242
Distinct authors in sample
Gene link
—
Readiness
1/6
Stages with a signal
Clinical definition (Orphanet)
A rare genetic neurological disorder characterized by postnatal onset of severe global , profound mental retardation, microcephaly, spasticity evolving into spastic quadriplegia with joint contractures, generalized , and irritability. Severe choreoathetosis and features are absent. Brain imaging shows cerebellar atrophy followed by cerebral atrophy affecting both white and grey matter, but no pontine involvement.
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.
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.”
1/6 stages with a signal
Research-stage checklist from open sources (GenCC, literature, Monarch when enriched, ClinicalTrials.gov). Not a prognosis or care recommendation.
- Gene identifiedNot found
No GenCC disease–gene assertion in this build
- LiteraturePresent
49 matched papers (29 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 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)
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?
49
49 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.
49 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).
29 in the last 10 years · medium confidence · 43.1th percentile (publications denominator)
Phrase hits: 49 · MeSH hits: 0
Who's working on it?
242
Distinct author names in 49 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.
- 01Schweizer U7 papers · 2026
*Institut für Biochemie und Molekularbiologie, Rheinische Friedrich-Wilhelms-Universität Bonn, Nussallee 11, 53115 Bonn, Germany.
Papers in Europe PMC - 02Farese RV Jr4 papers · 2020
Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, United States; Department of Cell Biology, Harvard Medical School, United States; Broad Institute of Harvard and MIT, United States. Electronic address: robert@hsph.harvard.edu.
Papers in Europe PMC - 03Walther TC4 papers · 2020
Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, United States; Department of Cell Biology, Harvard Medical School, United States; Broad Institute of Harvard and MIT, United States; Howard Hughes Medical Institute, United States. Electronic address: twalther@hsph.harvard.edu.
Papers in Europe PMC - 04Bonifacino JS3 papers · 2019
Cell Biology and Metabolism Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA.
Papers in Europe PMC - 05Chatterjee K3 papers · 2021
Metabolic Research Laboratories, Wellcome Trust-MRC Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, United Kingdom.
Papers in Europe PMC - 06Christiano R3 papers · 2020
Department of Genetics and Complex Diseases, Harvard T.H. Chan School of Public Health, Boston, United States.
Papers in Europe PMC - 07Fröhlich F3 papers · 2016
Department of Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, United States.
Papers in Europe PMC - 08Khakurel A3 papers · 2023
Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR, United States.
Papers in Europe PMC - 09Lerman-Sagie T3 papers · 2018
Metabolic Neurogenetic Service, Holon, Israel; Pediatric Neurology Unit, Holon, Israel; Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
Papers in Europe PMC - 10Lev D3 papers · 2018
Metabolic Neurogenetic Service, Holon, Israel; Pediatric Neurology Unit, Holon, Israel; The Rina Mor Institute of Medical Genetics, Wolfson Medical Center, Holon, Israel; Sackler School of Medicine, Tel-Aviv University, Tel-Aviv, Israel. Electronic address: dorlev@post.tau.ac.il.
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 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.
medium 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.
See who's working on it — people publishing on this disease are often the practical next contact when no trial is listed.
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.
"Progressive cerebello-cerebral atrophy"
ClinicalTrials.gov query (quoted phrases + MeSH via query.cond, plus recall-expansion terms when used):
"Progressive cerebello-cerebral atrophy"
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: PCCA
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
Ingested 2026-07-27T10:29:51.679Z