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Choroideremia-deafness-obesity syndrome is an X-linked retinal dystrophy characterized by choroideremia, causing in affected males progressive nyctalopia and eventual central blindness. Obesity, moderate intellectual disability and congenital mixed (sensorineural and conductive) deafness are also observed. Female carriers show typical retinal changes indicative of the choroideremia carrier state.
Features include always present findings: Hearing loss (hearing impairment), Incomplete partition of the cochlea, and Intellectual disability; and very common findings: Chorioretinal degeneration, Choroideremia, Inner ear hearing loss (sensorineural hearing impairment), and Abnormal chorioretinal morphology. 44 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 8 | Mild intellectual disability, Global developmental delay, Intellectual disability |
Biomarker and diagnostic research for choroideremia-deafness-obesity syndrome has been reported in the published literature.
Phenotype severity distribution: 3 always present features, 4 very common features, 26 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for choroideremia-deafness-obesity syndrome.
204 publications have been identified in PubMed for choroideremia-deafness-obesity syndrome. Kisho has analyzed 111 by research type. Research spans Review / Meta-Analysis (71%), Basic Science / Preclinical (13%), and Epidemiology / Natural History (6%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 79 | 71% |
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 8:43 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about choroideremia-deafness-obesity syndrome
Ears | 7 | Hearing loss (hearing impairment), Progressive sensorineural hearing impairment, Incomplete partition of the cochlea |
Muscles | 4 | Chorioretinal atrophy, Damage to the optic nerve (optic atrophy), Abnormal Achilles tendon morphology |
Eyes | 4 | Damage to the optic nerve (optic atrophy), Progressive night blindness, Strabismus |
Growth and development | 3 | Decreased response to growth hormone stimulation test, Growth delay, Postnatal growth retardation |
Hormones | 2 | Decreased response to growth hormone stimulation test, Pituitary hypothyroidism |
Bones and joints | 1 | Delayed skeletal maturation |
Heart and blood vessels | 1 | Hypertension |
Kidneys and urinary system | 1 | Renal artery stenosis |
Arms and legs | 1 | Upper limb muscle weakness |
Laboratory research |
14 |
13% |
Disease patterns and progression | 7 | 6% |
Patient case studies | 4 | 4% |
Other research | 3 | 3% |
Testing and diagnosis research | 3 | 3% |
Clinical study results | 1 | 1% |
Anderson EN (2026). [PMID: 41468891](https://pubmed.ncbi.nlm.nih.gov/41468891/). *Am J Hum Genet*. [Basic Science / Preclinical]
Amado C (2026). [PMID: 40975490](https://pubmed.ncbi.nlm.nih.gov/40975490/). *Ann Allergy Asthma Immunol*. [Review / Meta-Analysis]
Papazachariou A (2026). [PMID: 41128447](https://pubmed.ncbi.nlm.nih.gov/41128447/). *Curr Opin Clin Nutr Metab Care*. [Review / Meta-Analysis]
Borojeni S (2025). [PMID: 40546148](https://pubmed.ncbi.nlm.nih.gov/40546148/). *Rev Prat*. [Review / Meta-Analysis]
Karuntu JS (2025). [PMID: 39733931](https://pubmed.ncbi.nlm.nih.gov/39733931/). *Prog Retin Eye Res*. [Review / Meta-Analysis]
Sahoo SS (2025). [PMID: 39475954](https://pubmed.ncbi.nlm.nih.gov/39475954/). *Blood*. [Review / Meta-Analysis]
Bertoli-Avella AM (2025). [PMID: 40413033](https://pubmed.ncbi.nlm.nih.gov/40413033/). *J Med Genet*. [Basic Science / Preclinical]
Pena C (2025). [PMID: 40146047](https://pubmed.ncbi.nlm.nih.gov/40146047/). *Minerva Med*. [Review / Meta-Analysis]
Walther LE (2025). [PMID: 40192781](https://pubmed.ncbi.nlm.nih.gov/40192781/). *HNO*. [Review / Meta-Analysis]
Gencer NS (2025). [PMID: 41291504](https://pubmed.ncbi.nlm.nih.gov/41291504/). *BMC Geriatr*. [Epidemiology / Natural History]
AI-curated news mentioning choroideremia-deafness-obesity syndrome
Updated Sep 16, 2026
A recent study highlights the role of somatic mosaicism and skewed X-chromosome inactivation in a female patient exhibiting a male-pattern choroideremia phenotype. This research could enhance understanding of the genetic mechanisms underlying choroideremia.