RARE DISEASERESEARCH ATLAS

ORPHA:228308

Carnitine palmitoyl transferase II deficiency, neonatal form

high confidenceSubtype of disorder

Also known as: CPT2, lethal systemic form · CPT2, neonatal form · CPTII, lethal systemic form · CPTII, neonatal form · Carnitine palmitoyl transferase II deficiency, lethal systemic form · Carnitine palmitoyl transferase deficiency type 2, lethal systemic form · Carnitine palmitoyl transferase deficiency type 2, neonatal form

Publications

9

24.9th percentile

Trials

2

Interventional, condition-specific

Researchers

114

Distinct authors in sample

Gene link

CPT2

Strong

Readiness

3/6

Stages with a signal

Clinical definition (Orphanet)

The form of carnitine palmitoyltransferase II (CPT II) deficiency, an inherited disorder that affects oxidation of long chain fatty acids (LCFA), is the lethal form of the disease which presents with multisystem failure.

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 (2)

CPT II deficiency, lethal neonatal · carnitine palmitoyl transferase II deficiency, neonatal form

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 identifiedPresent

    Strong — CPT2

  2. LiteraturePresent

    9 matched papers (8 in last 10 years) Source

  3. Phenotype characterisedNot checked

    Not yet enriched from Monarch / HPO

  4. Animal modelNot checked

    Not yet enriched from Monarch / Alliance

  5. Orphan designationNot checked

    FDA/EMA orphan-drug designation not enriched yet

  6. Interventional trialPresent

    2 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?

Yes — we know a specific gene responsible (CPT2).

GenCC classification: Strong.

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?

9

9 papers have ever been indexed 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.

9 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).

8 in the last 10 years · high confidence · 24.9th percentile (publications denominator)

Phrase hits: 9 · MeSH hits: 0

Open Europe PMC search

Who's working on it?

114

Distinct author names in 9 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
    Aghajani A1 paper · 2024

    Student Research Committee, School of Medicine, Anzali International Campus, Guilan University of Medical Sciences, Rasht, Iran.

    Papers in Europe PMC
  2. 02
    Alberto JM1 paper · 2024

    Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, Nancy, F-54000, France.

    Papers in Europe PMC
  3. 03
    Alipour M1 paper · 2024

    Medical Student, Department of Medicine, Islamic Azad University Tehran Medical Sciences, Iran.

    Papers in Europe PMC
  4. 04
    Amor DJ1 paper · 2025

    Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia.

    Papers in Europe PMC
  5. 05
    Attarian S1 paper · 2022

    Service de Neurologie, FILNEMUS, Hôpital La Timone, CHU de Marseille, 13385 Marseille, France.

    Papers in Europe PMC
  6. 06
    Bahrami A1 paper · 2024

    School of Medicine, Kashan University of Medical Science, Kashan, Iran.

    Papers in Europe PMC
  7. 07
    Bar-Ziv A1 paper · 2019

    The Danek Gertner Institute of Human Genetics, Sheba Medical Center, Tel Hashomer, Israel.

    Papers in Europe PMC
  8. 08
    Barel O1 paper · 2019

    Sheba Cancer Research Center, Sheba Medical Center, Tel Hashomer, Israel.

    Papers in Europe PMC
  9. 09
    Bartoli M1 paper · 2022

    INSERM, Marseille Medical Genetics, U1251, Aix-Marseille Université, 13385 Marseille, France.

    Papers in Europe PMC
  10. 10
    Baspinar O1 paper · 2024

    Inserm UMRS 1256 NGERE - Nutrition, Genetics, and Environmental Risk Exposure, University of Lorraine, Nancy, F-54000, France.

    Papers in Europe PMC

Clinical research

Is a treatment being tested?

2

interventional trials for this specific condition

2 interventional trials matched this specific condition name; none in our sample are currently recruiting.

Data as of 27 July 2026

2 interventional trials — more than 73% of diseases in the trials denominator have none at all (5114 of 7003; this disease is at the 82.4th percentile).

high confidence · 82.4th percentile (trials denominator)

Recruiting interventional trials

From the matched ClinicalTrials.gov set

2 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.

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 2026-07-26

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.

"Carnitine palmitoyl transferase II deficiency, neonatal form" OR "CPT2, lethal systemic form" OR "CPT2, neonatal form" OR "CPTII, lethal systemic form" OR "CPTII, neonatal form" OR "Carnitine palmitoyl transferase II deficiency, lethal systemic form" OR "Carnitine palmitoyl transferase deficiency type 2, lethal systemic form" OR "Carnitine palmitoyl transferase deficiency type 2, neonatal form" OR "CPT II deficiency, lethal neonatal"

Run this search on Europe PMC

MeSH descriptor terms unioned into the query: Carnitine Palmitoyltransferase II Deficiency, Lethal Neonatal

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

"Carnitine palmitoyl transferase II deficiency, neonatal form" OR "CPT2, lethal systemic form" OR "CPT2, neonatal form" OR "CPTII, lethal systemic form" OR "CPTII, neonatal form" OR "Carnitine palmitoyl transferase II deficiency, lethal systemic form" OR "Carnitine palmitoyl transferase deficiency type 2, lethal systemic form" OR "Carnitine palmitoyl transferase deficiency type 2, neonatal form" OR "CPT II deficiency, lethal neonatal" OR "Carnitine Palmitoyltransferase II Deficiency, Lethal Neonatal" OR "CPT2"

Recall-expansion terms: CPT2

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

Study-type breakdown: 2 interventional · 0 observational · 1 expanded access. Only interventional studies enter the trial headline.

Query health: ok — strategies attempted: phrase, mesh, recall-expansion; with hits: phrase, recall-expansion

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 2026-07-27T10:06:57.373Z