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A CHARGE syndrome in which the cause of the disease is a variation in the CHD7 gene.
Features include always present findings: Postnatal growth retardation, Intellectual disability, Global developmental delay, and Inner ear hearing loss (sensorineural hearing impairment) and others; and common findings: Dysplastic tricuspid valve, Bifid femur, Aplasia of the semicircular canal, and Cataract and others. 89 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Head and neck | 6 | Square face, Cleft palate, Microcephaly |
CHD7 encodes chromodomain helicase DNA binding protein 7 (2,997 aa). ATP-dependent chromatin-remodeling factor, slides nucleosomes along DNA; nucleosome sliding requires ATP. Probable transcription regulator. May be involved in the in 45S precursor rRNA production Highest expression in Brain Cerebellar Hemisphere (51.7 TPM) and Brain Cerebellum (48.3 TPM).
CHD7-related CHARGE syndrome is associated with mutations in the CHD7 gene on chromosome 8.
The CHD7 protein participates in CHD7 and CHD8 bind FAM124B, CHD8 and CHD7 bind CTCF, and CHD6-9-dependent ATP hydrolysis pathways.
CHD7 is classified as a druggable target (Enzyme category) with score 0.0.
CHD7 disorder should be suspected in individuals with combinations of the following findings and family history.
Clinical and imaging findings
Source: GeneReviews — "CHD7 Disorder"
No approved treatments are currently available for CHD7-related CHARGE syndrome. The disease remains an area of unmet medical need.
The management of the manifestations of CHD7 disorder can be complex and require a multidisciplinary approach involving clinicians, therapists, and educators. Published CHARGE syndrome guidelines (including one-page summaries) for clinical management and cranial imaging guidelines (full text) are available. Evaluations Following Initial Diagnosis To establish the extent of disease and needs of an individual diagnosed with CHD7 disorder, the evaluations summarized (if not performed as part of the evaluation that led to the diagnosis) are recommended. Table 5. Recommended Evaluations Following Initial Diagnosis in an Individual with a CHD7 Disorder
Table 7. Recommended Surveillance for Individuals with CHD7 Disorder
System/Concern |
|---|
No clinical trials have been registered for CHD7-related CHARGE syndrome.
14 publications have been identified in PubMed for CHD7-related CHARGE syndrome. Research spans Case Report / Case Series (43%), Basic Science / Preclinical (43%), and Review / Meta-Analysis (14%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 6 | 43% |
Data assembled from 6 of 12 sources · Last updated Sep 18, 2026, 6:48 AM UTC
Online Mendelian Inheritance in Man
Common questions about CHD7-related CHARGE syndrome
Hormones | 4 | Hypogonadotropic hypogonadism, Hypothyroidism, Decreased response to growth hormone stimulation test |
Heart and blood vessels | 4 | Right aortic arch, Ventricular septal defect, Secundum atrial septal defect |
Kidneys and urinary system | 3 | Renal hypoplasia, Horseshoe kidney, Renal agenesis |
Eyes | 3 | Retinal coloboma, Cataract, Ptosis |
Brain and nerves | 3 | Intellectual disability, Global developmental delay, Difficulty swallowing (dysphagia) |
Digestive system | 3 | Esophageal atresia, Feeding difficulties, Difficulty swallowing (dysphagia) |
Bones and joints | 2 | Bifid femur, Sideways curvature of the spine (scoliosis) |
Growth and development | 2 | Postnatal growth retardation, Decreased response to growth hormone stimulation test |
Arms and legs | 2 | Hand monodactyly, Hand polydactyly |
Ears | 2 | Inner ear hearing loss (sensorineural hearing impairment), Mixed hearing impairment |
Skin | 1 | Abnormal palmar dermatoglyphics |
Lungs and breathing | 1 | Pulmonary artery atresia |
Age of onset: at birth, before birth.
In the premolecular era, the acronym CHARGE was proposed for the combination of the clinical features coloboma, heart defect, choanal atresia, retarded growth and development, genital hypoplasia, ear anomalies (including deafness) of unknown cause . Clinical diagnostic criteria were refined for what became called CHARGE association . Following the discovery that heterozygous CHD7 variants and deletions cause CHARGE syndrome , molecular genetic testing of family members of probands with CHARGE syndrome expanded the phenotypic spectrum to include phenotypes that do not fulfill the previously proposed CHARGE syndrome clinical diagnostic criteria [, , , , ]. Thus, CHD7 disorder exhibits a high degree of clinical variability even among individuals in the same family and among individuals from different families with the same pathogenic variant . This section discusses only those reports in which a CHD7 pathogenic variant has been confirmed in affected individuals. To date reports of isolated manifestations of CHD7 disorder have been rare – many of which did not document a clinical workup sufficient to identify other features in the CHD7 disorder phenotypic spectrum. Thus, the percentages (based on persons with molecularly confirmed CHARGE syndrome ) are likely to change over time as individuals with a CHD7 pathogenic variant ascertained through use of a multigene panel or genomic testing undergo a complete clinical evaluation . Table 2. Features of CHD7 Disorder in Individuals Ascertained for CHARGE Syndrome
Feature | % of Persons w/Feature | Comment |
|---|---|---|
Ocular coloboma(ranging from small retinal coloboma to anophthalmia) | 80% | Light sensitivity, refractive error, loss of upper visual field/central visual field, blindness, risk of retinal detachment |
Choanal atresia/stenosis | 45% | Interferes w/breathing feeding; May require several surgeries to remain patent; Unilateral stenosis may be easily missed. Cranial nerve dysfunction/ |
anomaly | I: hyposmia or anosmia | 90% |
VII: facial palsy | 40% | Asymmetric face or lack of facial expression |
Facial nerve often has an aberrant course, which correlates w/SNHL can be damaged during cochlear implant surgery. VIII: SNHL /or vestibular dysfunction | 95% | Hearing loss |
Cochlear implant may not be successful. IX/X: suck swallow, abnormal GI motility | 60%-80% | Lack of coordination of suck swallow, aspiration, /or gastroesophageal reflux; Oral defensiveness; Digestive constipation issues |
Ear malformations | Abnormal auricle | 90% |
SNHL, esp high frequency Ossicular malformations | 80% | Conductive hearing loss, which may fluctuate w/middle ear disease |
Complex mixed hearing loss may present as a wedge-shaped audiogram. Mondini defect | 90% | SNHL, esp high frequency |
Semicircular canal defect | 94% | Affects balance visual processing, delayed motor development |
Cleft lip and/or palate | 25%-50% | — |
Endocrine1 | Hypogonadotropic hypogonadism | 50%-70% |
Often in combination w/anosmia Growth deficiency | 70% | May be due to growth hormone deficiency (in ~10%) |
Hypothyroidism | 15%-20% | — |
Developmental delay/ Intellectual disability | 90%/ 60% | DD due to sensory deficits (hearing, vision, balance), illness, hospitalizations |
Cardiovascular malformation | 74% | Conotruncal/outflow defects are particularly common; isolated ASD, VSD, PDA, PFO also occur.; Vascular sling/aberrant aortic artery may result in choking. |
Tracheoesophageal anomalies | 20% | Esophageal atresia w/or w/o fistula, laryngotracheomalacia, gastroesophageal reflux, feeding breathing difficulties, aspiration (pneu... |
Source: GeneReviews — "CHD7 Disorder"
While no clear genotype-phenotype correlations exist for CHD7-related CHARGE syndrome , in general, but not as a rule, missense variants are associated with a less severe phenotype . CHD7-related hypogonadotropic hypogonadism with or without anosmia is more likely to be due to missense variants than nonsense variants.
Source: GeneReviews — "CHD7 Disorder"
Genetic disorders with multiple features overlapping those associated with CHD7 disorder are summarized in and . Table 3. Genes to Consider in the Differential Diagnosis of CHD7 Disorder
Gene | Disorder | MOI | Clinical Features of the Differential Disorder |
|---|---|---|---|
Joubert syndrome | ARXLDigenic | Bilateral chorioretinal coloboma, interstitial fibrosis of kidney renal insufficiency, hepatic fibrosis, neonatal tachypnea, cerebellar vermis aplasia/hypoplasia, polydactyly | "Molar tooth" sign on neuroimaging, characteristic radiologic features, absence of dysmorphic features of CHD7 disorder EYA1 |
SIX1 | Branchiootorenal spectrum disorder1 | AD | Deafness, external ear deformity, lateral semicircular canal hypoplasia, renal malformation |
Kabuki syndrome | ADXL | Cleft palate, heart defects, occasional coloboma, hearing loss, growth restriction | Typical facial features: long palpebral fissures w/eversion of lateral 3rd of lower eyelids, sparse eyebrows, large prominent ears (all more prominent w/age), prominent fingertip pads |
PAX2 | PAX2 disorder(renal coloboma syndrome) | AD | Retinal/optic nerve colobomas; kidney abnormalities; occasional hearing loss |
BMP4 | Syndromic microphthalmia 6(OMIM 607932) | AD | Colobomas, external ear anomalies, hearing loss, congenital heart defect, genital hypoplasia, cleft lip/palate, pituitary problems, renal anomalies |
Mandibulofacial dysostosis w/microcephaly | AD | Choanal atresia, external ear anomalies, hearing loss, congenital heart defect, growth deficiency, cleft lip/palate, esophageal atresia | Typical craniofacial features due to malar hypoplasia |
FGFR1 | FGFR1-related Kallmann syndrome2(OMIM 147950) | AD | Colobomas, hearing loss, genital hypoplasia, or absent sense of smell, cleft lip/palate1 |
GLI2 | Culler-Jones syndrome(OMIM 615849) | AD | External ear anomalies, hearing loss, cleft lip/palate, growth deficiency, pituitary problems, renal anomalies |
Pallister-Hall syndrome | AD | Colobomas, external ear anomalies, congenital heart defect, growth deficiency, genital hypoplasia, cleft lip/palate, pituitary problems, renal anomalies | Hypothalamic hamartomas, central polydactyly JAG1 NOTCH2 |
Alagille syndrome | AD | Congenital heart defect, renal anomalies | Cholestasis, butterfly vertebrae, posterior embryotoxon, triangular-shaped face MYCN |
Feingold syndrome 1 | AD | Hearing loss, heart defect, esophageal atresia, renal anomalies | Brachymesophalangy |
OTX2 | Syndromic microphthalmia 5(OMIM 610125) | AD | Colobomas, growth deficiency, genital h... |
Source: GeneReviews — "CHD7 Disorder"
Genetic testing for CHD7 is available. Testing is considered confirmatory for diagnosis.
System/Concern | Evaluation | Comment |
|---|---|---|
Constitutional | Measurement of weight, length/height, head circumference | To assess for growth failure /or obesity |
Eyes | Ophthalmology eval | Best corrected visual acuity; assess for refractive error, possible amblyopia; Assess for iris coloboma, photophobia, possible corneal exposure due to VIIth nerve palsy. |
involvement | Audiology eval1 | Assess for conductive sensorineural hearing impairment. Clinical assessment for balance issues |
Nose/Throat | Clinical eval for choanal atresia/stenosis | Suggestive findings in neonates infants incl apnea unilateral nasal discharge; Referral to otolaryngologist Assessment for tracheoesophageal fistula |
Mouth | Clinical eval for cleft palate, submucous cleft palate, velopharyngeal insufficiency | Consider referral to craniofacial team. Baseline eval by dentist, typically from age ~3 yrs (or earlier in those w/cleft palate) |
Cardiovascular | EKG echocardiogram3 | Referral to cardiologist as indicated |
Respiratory | Consider polysomnogram. | To assess for sleep apnea Consider pulmonary function tests. |
Feeding | Assess for signs symptoms of dysphagia aspiration. | Consider VFSS nutrition/feeding team eval for those w/suggestive features or aspiration pneumonia. Assess for history of GERD GI motility issues.4 |
Genitourinary | Males: assess for micropenis /or cryptorchidism. | Cryptorchidism: referral to urologist; Micropenis: see Endocrine in this table Females: consider pelvic ultrasound examination. |
Musculoskeletal | Clinical assessment for scoliosis | Consider spine radiographs as a baseline.; Consider referral to orthopedist. |
Neurologic | Clinical assessment for cranial nerve abnormalities | To incl assessment for swallowing dysfunction (See Gastrointestinal/Feeding in this table.); If present, consider CT /or MRI imaging5 Cranial MRI EEG if seizures are suspected |
Development | Developmental assessment | A team approach is necessary.; Incl motor, speech-language eval, general cognitive abilities, educational needs, /or vocational opportunities.; Incl appropriate testing to assess cognitive function in those w/sensory deficits.; Abilities may be underestimated, especially in early yrs. |
Behavioral | Consider neuropsychiatric eval. | Adapt testing environment as needed to patient comfort.; Screen for ADHD, anxiety, obsessive-compulsive symptomatology. Endocrine |
Renal | Renal US exam | To assess for renal anomalies, hydronephrosis, calcifications Blood pressure measurement |
Source: GeneReviews — "CHD7 Disorder"
Anesthesia. Airway problems associated with anesthesia are common in individuals with CHARGE syndrome. They may be attributed to choanal atresia, cleft lip and palate, and other upper-airway structural anomalies and associated cranial nerve abnormalities. Soft cartilage and resultant floppy trachea add to potential anesthesia risk. Neurogenic incoordination of swallow and closure of the epiglottis may complicate the postoperative course, especially with repeated general anesthetics . Because of the increased risk of post-anesthesia airway complications, procedures requiring anesthesia should be minimized and combined whenever possible .
Source: GeneReviews — "CHD7 Disorder"
Search ClinicalTrials.gov in the US and EU Clinical Trials Register in Europe for access to information on clinical studies for a wide range of diseases and conditions. Note: There may not be clinical trials for this disorder.
Source: GeneReviews — "CHD7 Disorder"
View trials for CHD7-related CHARGE syndrome
Frequency |
|---|
Constitutional | Measurement of length/height weight for evidence of linear growth failure or obesity | At each visit |
Eyes | Ophthalmologic exam for changes in best corrected visual acuity, cataract, /or retinal detachment (in those w/chorioretinal coloboma) | Every 6 mos or as clinically indicated Eval by deaf-blind specialist to assess functional vision |
Throat | Audiologic eval to determine type extent of hearing loss success w/hearing habilitation | Annually or as clinically indicated Assessment for chronic ear infections /or effusions |
Mouth | Dental eval | At least every 6 mos after age 3 yrs |
Cardiovascular | EKG Holter monitor if suspicion of arrhythmia (esp in those w/complex cardiac anomaly) | Starting in late childhood/early adolescence, as clinically indicated Blood pressure |
Respiratory | Clinical assessment for sleep disturbance /or obstructive sleep apnea1 | At each visit Gastrointestinal/ |
Source: GeneReviews — "CHD7 Disorder"
Phenotype severity distribution: 6 always present features, 29 common features.
6 |
43% |
Research summaries | 2 | 14% |
Ibeas C (2026). [PMID: 41743177](https://pubmed.ncbi.nlm.nih.gov/41743177/). *JCEM Case Rep*. [Case Report / Case Series]
Santini A (2026). [PMID: 41952182](https://pubmed.ncbi.nlm.nih.gov/41952182/). *Genome Med*. [Basic Science / Preclinical]
Usman N (2026). [PMID: 32644625](https://pubmed.ncbi.nlm.nih.gov/32644625/). *Unknown Journal*. [Review / Meta-Analysis]
Hancock MB (2026). [PMID: 41664627](https://pubmed.ncbi.nlm.nih.gov/41664627/). *Dis Model Mech*. [Basic Science / Preclinical]
Orimoto R (2025). [PMID: 40164710](https://pubmed.ncbi.nlm.nih.gov/40164710/). *J Hum Genet*. [Review / Meta-Analysis]
Klaustermeier RA (2025). [PMID: 41000326](https://pubmed.ncbi.nlm.nih.gov/41000326/). *Neurosci Insights*. [Basic Science / Preclinical]
Hancock MB (2025). [PMID: 40766592](https://pubmed.ncbi.nlm.nih.gov/40766592/). *bioRxiv*. [Basic Science / Preclinical]
Park IY (2025). [PMID: 40461563](https://pubmed.ncbi.nlm.nih.gov/40461563/). *Sci Rep*. [Case Report / Case Series]
Kaya E (2025). [PMID: 40910928](https://pubmed.ncbi.nlm.nih.gov/40910928/). *J Clin Res Pediatr Endocrinol*. [Case Report / Case Series]
Patil R (2025). [PMID: 40034866](https://pubmed.ncbi.nlm.nih.gov/40034866/). *J Allergy Clin Immunol Glob*. [Case Report / Case Series]
AI-curated news mentioning CHD7-related CHARGE syndrome
Updated Jun 7, 2026
A recent case report highlights the association between CHARGE syndrome and persistent hyperplastic primary vitreous, contributing to the understanding of ocular manifestations in this rare condition. This discovery may inform future research and clinical approaches to managing patients with CHARGE syndrome.
A recent CDC press release highlights that many infants are still not receiving essential screenings for hearing loss and critical congenital heart disease (CCHD) at birth. Approximately 1 in 500 infants are affected by CCHD, underscoring the need for improved intervention strategies.