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Connection Interrupted: Genetic causes and clinical characteristics of hereditary optic neuropathies

Connection Interrupted: Genetic causes and clinical characteristics of hereditary optic neuropathies - Connection Interrupted

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON56244
Enrollment
70
Registered
2022-03-31
Start date
2022-10-07
Completion date
Unknown
Last updated
2025-09-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

oogzenuw aandoeningen Hereditary optic atrophies

Interventions

None listed

Sponsors

Academisch Medisch Centrum
Lead Sponsor

Eligibility

Age
No minimum to 99 Years

Inclusion criteria

Inclusion criteria: • Clinical diagnosis or suspicion of hereditary optic neuropathy based on  fundus examination supported with additional clinical examinations, such as  optical coherence tomography, perimetry or visual evoked potentials  • No underlying mutation detected with standard diagnostic panels which  sequence most common disease-associated genes for hereditary optic neuropathies  (In the second part of the study where we focus on secondary objectives, we  will also include subjects with HON with a known mutation)

Exclusion criteria

Exclusion criteria: Patients with optic atrophy with a known etiology other than hereditary optic  neuropathies, such as: • Vascular (e.g. arteritic and non-arteritic ischemic optic neuropathy) • Compressive ( e.g. secondary to papilledema, tumour, bony growth, thyroid eye  disease, chiasmal compression, disc druses, increased intraocular pressure) • Inflammatory (e.g. systemic lupus erythematosus, Behcet*s disease,  sarcoidosis, demyelination (MS)) • Infectious  • Traumatic optic neuropathy • Metabolic (e.g. diabetes mellitus) • Neoplastic, • Radiation optic neuropathy • Toxic & nutritional (e.g. Medications such as ethambutol, amiodarone,  antiretroviral drugs; alcohol, vitamin deficiencies). In some toxic optic  neuropathies, toxic agents can precipitate neuropathy in an susceptible optic  nerve with underlying genetic disorder. Selective cases where initial diagnosis  is toxic optic neuropathy but clinical features suggest an underlying  hereditary optic neuropathy will be also included in the study.

Design outcomes

Primary

MeasureTime frame
Identification of pathologic genetic variants in known disease associated genes or new disease associated genes in hereditary optic neuropathies. Clinical characterizations of hereditary optic neuropathies.

Secondary

MeasureTime frame
Not applicable.

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)