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Chromosome 3p duplication is a chromosome abnormality that occurs when there is an extra copy of genetic material on the short arm (p) of chromosome 3. The severity of the condition and the signs and symptoms depend on the size and location of the duplication and which genes are involved. Features that often occur in people with chromosome 3p duplication include developmental delay, intellectual disability, behavioral problems and distinctive facial features. Chromosome 3p duplication can be de novo or inherited from a parent with a balanced translocation. Treatment is based on the signs and symptoms present in each person.
Biomarker and diagnostic research for partial duplication of the short arm of chromosome 3 has been reported in the published literature.
No clinical trials have been registered for partial duplication of the short arm of chromosome 3.
3 publications have been identified in PubMed for partial duplication of the short arm of chromosome 3. Research spans Diagnostic / Biomarker (67%) and Basic Science / Preclinical (33%).
Horbacz M (2025). [PMID: 41210864](https://pubmed.ncbi.nlm.nih.gov/41210864/). *Front Med (Lausanne)*. [Diagnostic / Biomarker]
Schuy J (2024). [PMID: 39669604](https://pubmed.ncbi.nlm.nih.gov/39669604/). *Genet Med Open*. [Basic Science / Preclinical]
Guo C (2024). [PMID: 39707235](https://pubmed.ncbi.nlm.nih.gov/39707235/). *BMC Pregnancy Childbirth*. [Diagnostic / Biomarker]
Data assembled from 3 of 12 sources · Last updated Sep 20, 2026, 5:42 PM UTC
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