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Congenital disorder of glycosylation (CDG) is a fast growing group of inborn errors of metabolism characterized by defective activity of enzymes that participate in glycosylation (modification of proteins and other macromolecules by adding and processing of oligosaccharide side chains). CDG is comprised of phenotypically diverse disorders affecting multiple systems including the central nervous system, muscle function, immunity, endocrine system, and coagulation. The numerous entities in this group are subdivided, based on the synthetic pathway affected, into disorder of protein N-glycosylation, disorder of protein O-glycosylation, disorder of multiple glycosylation, and disorder of glycosphingolipid and glycosylphosphatidylinositol anchor glycosylation.
Biomarker and diagnostic research for congenital disorder of glycosylation has been reported in the published literature.
Estimated prevalence: Unknown (Unknown prevalence).
6 clinical trials registered, 3 recruiting. Interventions under study include drug therapy and other interventions. Pipeline includes 2 PHASE2, 1 PHASE1. Research is primarily sponsored by academic and government institutions.
NCT ID | Title | Phase | Sponsor | Status |
|---|---|---|---|---|
[NCT05402384](https://clinicaltrials.gov/study/NCT05402384) |
Data assembled from 4 of 12 sources · Last updated Sep 20, 2026, 5:38 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
AVTX-801 D-galactose Supplementation in SLC35A2-CDG
PHASE2 |
Eva Morava-Kozicz |
NOT_YET_RECRUITING |
[NCT04199000](https://clinicaltrials.gov/study/NCT04199000) | Clinical and Basic Investigations Into Congenital Disorders of Glycosylation | — | Icahn School of Medicine at Mount Sinai | RECRUITING |
[NCT05402332](https://clinicaltrials.gov/study/NCT05402332) | Evaluating the Efficacy and Safety of D-galactose in PGM1-CDG (AVTX-801) | PHASE2 | Eva Morava-Kozicz | NOT_YET_RECRUITING |
[NCT03655223](https://clinicaltrials.gov/study/NCT03655223) | Early Check: Expanded Screening in Newborns | — | RTI International | ACTIVE_NOT_RECRUITING |
[NCT07572825](https://clinicaltrials.gov/study/NCT07572825) | Assessing the Safety and Tolerability of NMN in DHDDS-CDG | PHASE1 | Eva Morava-Kozicz | RECRUITING |
144 publications have been identified in PubMed for congenital disorder of glycosylation. Research spans Basic Science / Preclinical (38%), Case Report / Case Series (35%), and Gene Therapy / Novel Therapeutics (8%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 54 | 38% |
Patient case studies | 51 | 35% |
New treatment approaches | 12 | 8% |
Research summaries | 8 | 6% |
Disease patterns and progression | 8 | 6% |
Testing and diagnosis research | 6 | 4% |
Other research | 5 | 3% |
Kristal E (2026). [PMID: 41986803](https://pubmed.ncbi.nlm.nih.gov/41986803/). *J Clin Immunol*. [Case Report / Case Series]
Radenkovic S (2026). [PMID: 41723528](https://pubmed.ncbi.nlm.nih.gov/41723528/). *J Transl Med*. [Basic Science / Preclinical]
Ng BG (2026). [PMID: 41935956](https://pubmed.ncbi.nlm.nih.gov/41935956/). *HGG Adv*. [Other]
D'Alessio AM (2026). [PMID: 41030119](https://pubmed.ncbi.nlm.nih.gov/41030119/). *American journal of medical genetics. Part A*. [Case Report / Case Series]
Harwood H (2026). [PMID: 42061477](https://pubmed.ncbi.nlm.nih.gov/42061477/). *Matrix Biol*. [Basic Science / Preclinical]
Gokalp S (2026). [PMID: 42037155](https://pubmed.ncbi.nlm.nih.gov/42037155/). *Am J Med Genet A*. [Case Report / Case Series]
Kraoua L (2026). [PMID: 41722273](https://pubmed.ncbi.nlm.nih.gov/41722273/). *Mol Genet Metab*. [Case Report / Case Series]
Micale L (2026). [PMID: 42202558](https://pubmed.ncbi.nlm.nih.gov/42202558/). *Mol Genet Metab*. [Basic Science / Preclinical]
Aziz MC (2026). [PMID: 42039650](https://pubmed.ncbi.nlm.nih.gov/42039650/). *bioRxiv*. [Basic Science / Preclinical]
Zhao L (2026). [PMID: 41960028](https://pubmed.ncbi.nlm.nih.gov/41960028/). *Front Pediatr*. [Case Report / Case Series]
AI-curated news mentioning congenital disorder of glycosylation
Updated Jul 22, 2026
A novel variant of the ZIP8 gene has been characterized, revealing its role in impaired manganese homeostasis and its association with congenital disorders of glycosylation. This discovery could lead to further research on the genetic basis of these disorders.
A recent study published in PubMed explores the tissue-specific expression and regulation of genes associated with congenital disorders of glycosylation. Utilizing GTEx data, the research provides insights into the genetic underpinnings of these rare diseases.