Alternating hemiplegia of childhood

MONDO:0016241

A rare neurodevelopmental disorder characterized by recurrent episodes of hemiplegia and paroxysmal disturbances associated with persistent developmental delay and cognitive impairment.

Also known as: AHC, adrenal hypoplasia congenita, alternating hemiplegia of childhood, childhood alternating hemiplegia, congenital adrenal Hypoplasia, congenital adrenal gland hypoplasia, paediatric alternating hemiplegia, pediatric alternating hemiplegia

3 clinical trials for this condition and its sub-types, 3 tagged with Alternating hemiplegia of childhood itself.

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Where it sits in the disease tree

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↑ Mendelian neurodevelopmental disorder (208) ↑ Hemiplegia (179) ↑ Alternating hemiplegia (3)

Sub-types of Alternating hemiplegia of childhood

X-linked adrenal hypoplasia congenita 0 trials
1 sub-type
- Adrenal hypoplasia, cytomegalic type 0 trials
Alternating hemiplegia of childhood 1 0 trials
Alternating hemiplegia of childhood 2 0 trials

Including sub-types (3) Tagged with Alternating hemiplegia of childhood (3)

Not yet finished but already full! 1 Completed 2

Scientists track rare dystonia to map its genetic roots

Knowledge-focused Ongoing

This study is observing up to 198 people with rapid-onset dystonia-parkinsonism (RDP) or related genetic mutations. Researchers aim to identify affected individuals, document how common the disease is, and track its progression over time. Participants undergo assessments of sympt…

Sponsor: State University of New York at Buffalo • Aim: Knowledge-focused

Last updated Jun 27, 2026 12:29 UTC

Alternating hemiplegia of childhood

Where it sits in the disease tree

Scientists track rare dystonia to map its genetic roots