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A rare, hereditary, immune deficiency with skin involvement characterized by early-onset cold urticaria after generalized exposure to cold air or evaporative cooling and not after contact with cold objects. Additional immunologic abnormalities are often present - antibody deficiency, recurrent infections, autoimmune disease and symptomatic allergic disease.
Features include always present findings: Cold urticaria, Erythema, and Pruritus; and common findings: Recurrent sinopulmonary infections, Asthma, Antinuclear antibody positivity, and Allergic rhinitis and others. 15 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Skin | 5 | Vitiligo, Cold urticaria, Erythema |
Blood and immune system | 1 | Recurrent sinopulmonary infections |
Lungs and breathing | 1 | Asthma |
Lab test results | 1 | Antinuclear antibody positivity |
Ears | 1 | Recurrent otitis media |
Hormones | 1 | Hashimoto thyroiditis |
PLCG2 function has not been fully characterized.
Familial cold autoinflammatory syndrome 3 is associated with mutations in the PLCG2 gene on chromosome 16.
Genetic testing for PLCG2 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for familial cold autoinflammatory syndrome 3 has been reported in the published literature.
Phenotype severity distribution: 3 always present features, 7 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for familial cold autoinflammatory syndrome 3.
55 publications have been identified in PubMed for familial cold autoinflammatory syndrome 3. Research spans Review / Meta-Analysis (25%), Case Report / Case Series (20%), and Basic Science / Preclinical (18%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 14 | 25% |
Patient case studies | 11 | 20% |
Laboratory research | 10 | 18% |
Disease patterns and progression | 9 | 16% |
Testing and diagnosis research | 4 | 7% |
Clinical study results | 3 | 5% |
New treatment approaches | 3 | 5% |
Other research | 1 | 2% |
Chu H (2026). [PMID: 41086530](https://pubmed.ncbi.nlm.nih.gov/41086530/). *Eur J Med Chem*. [Gene Therapy / Novel Therapeutics]
Toledano-Pinedo M (2026). [PMID: 41750257](https://pubmed.ncbi.nlm.nih.gov/41750257/). *Biomolecules*. [Review / Meta-Analysis]
Kato C (2026). [PMID: 41263512](https://pubmed.ncbi.nlm.nih.gov/41263512/). *Mod Rheumatol*. [Clinical Trial Publication]
Bouramtane A (2026). [PMID: 41261519](https://pubmed.ncbi.nlm.nih.gov/41261519/). *Int J Immunogenet*. [Review / Meta-Analysis]
Snouwaert JN (2026). [PMID: 41797712](https://pubmed.ncbi.nlm.nih.gov/41797712/). *JCI Insight*. [Basic Science / Preclinical]
Gao FH (2026). [PMID: 41582757](https://pubmed.ncbi.nlm.nih.gov/41582757/). *Zhongguo Dang Dai Er Ke Za Zhi*. [Case Report / Case Series]
Park YH (2026). [PMID: 41851524](https://pubmed.ncbi.nlm.nih.gov/41851524/). *Nat Immunol*. [Gene Therapy / Novel Therapeutics]
Koller BH (2026). [PMID: 41723527](https://pubmed.ncbi.nlm.nih.gov/41723527/). *J Neuroinflammation*. [Basic Science / Preclinical]
Bonet N (2025). [PMID: 41026232](https://pubmed.ncbi.nlm.nih.gov/41026232/). *J Clin Immunol*. [Epidemiology / Natural History]
Murillo-Cuesta S (2025). [PMID: 41046290](https://pubmed.ncbi.nlm.nih.gov/41046290/). *J Neuroinflammation*. [Review / Meta-Analysis]
Data assembled from 6 of 12 sources · Last updated Sep 19, 2026, 1:11 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center