HMBS-related hepatic porphyria

MONDO:0700382

A hepatic porphyria caused by monoallelic and biallelic variants in HMBS and presenting as a spectrum of disease (a semidominant inheritance pattern). Monoallelic variants predispose to acute/episodic attacks in adulthood with abdominal pain, neuropathy, and neuropsychiatric symptoms (women are more often affected) without cutaneous manifestations. Triggers precipitating acute attacks include estrogen/progesterone, oral contraceptives, alcohol, drugs, stress, or infections. Biallelic variants cause severe disease in childhood presenting with neurological issues including developmental abnormalities, ataxia, dysarthria, leukoencephalopathy, cataracts and optic nerve hypoplasia.

Also known as: HMBS-related hepatic porphyria

172 clinical trials for this condition and its sub-types.

Follow this condition — get notified about new trials

Sub-types

Broader categories

Sort by