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12q14 microdeletion syndrome is characterized by mild intellectual deficit, failure to thrive, short stature and osteopoikilosis. It has been described in four unrelated patients. The syndrome appears to be caused by a heterozygous deletion at chromosome region 12q14, which was detected in three of the four patients. The deleted region contains the LEMD3 gene: mutations in this gene have already been implicated in osteopoikilosis.
Biomarker and diagnostic research for 12q14 microdeletion syndrome has been reported in the published literature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for 12q14 microdeletion syndrome.
5 publications have been identified in PubMed for 12q14 microdeletion syndrome. Research spans Diagnostic / Biomarker (20%), Review / Meta-Analysis (20%), and Case Report / Case Series (20%).
Handa S (2025). [PMID: 39715853](https://pubmed.ncbi.nlm.nih.gov/39715853/). *Leukemia*. [Basic Science / Preclinical]
Wang H (2025). [PMID: 41645384](https://pubmed.ncbi.nlm.nih.gov/41645384/). *Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics*. [Case Report / Case Series]
Iglesias AI (2025). [PMID: 40992929](https://pubmed.ncbi.nlm.nih.gov/40992929/). *Prenatal diagnosis*. [Epidemiology / Natural History]
Yamoto K (2024). [PMID: 38840187](https://pubmed.ncbi.nlm.nih.gov/38840187/). *Clinical epigenetics*. [Review / Meta-Analysis]
Ye F (2024). [PMID: 38580914](https://pubmed.ncbi.nlm.nih.gov/38580914/). *BMC pregnancy and childbirth*. [Diagnostic / Biomarker]
Data assembled from 3 of 12 sources · Last updated Sep 18, 2026, 6:03 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
AI-curated news mentioning 12q14 microdeletion syndrome
Updated Jul 8, 2026
A new treatment for children aged 2 or older with sickle cell disease has been approved by the U.S. Food & Drug Administration. In a press release on Wednesday, the FDA announced it had approved Casgevy, the first gene therapy for children with sickle cell disease. (NewsNation) — A new treatment for children aged 2 or older with sickle cell disease has been approved by the Food & Drug Administration (FDA). In a Wednesday news release, the FDA announced it had approved Casgevy, the first gene therapy for children with the disease. “Casgevy is a gene therapy consisting of the patient’s own (autologous) hematopoietic (blood) stem cells, administered as a one-time single dose for intravenous infusion,” the release noted. “Pediatric patients as young as 2 years of age can now access a critical additional treatment option to treat these debilitating, life-threatening diseases,” Karim Mikhail, the acting director of the Center for Biologics Evaluation and Research, wrote. “These disorders carry a heavy burden for children and their families, affecting growth, development, and long-term health in profound ways,” Megha Kaushal, acting deputy director of the Office of Therapeutic Products in CBER, said in the release.